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Xtensa improvements for 3.18: 

- fix nommu support;
 - remove s6000 variant and s6105 platform.
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Merge tag 'xtensa-for-next-20141021-2' of git://github.com/jcmvbkbc/linux-xtensa into for_next

Xtensa improvements for 3.18:

- fix nommu support;
- remove s6000 variant and s6105 platform.
This commit is contained in:
Chris Zankel 2014-11-10 00:24:48 -08:00
Родитель aeb5897342 4006e565e1
Коммит c0d7aa0750
39 изменённых файлов: 138 добавлений и 3038 удалений
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50
arch/xtensa/Kconfig
Просмотреть файл

@ -98,12 +98,6 @@ config XTENSA_VARIANT_DC233C
help
This variant refers to Tensilica's Diamond 233L Standard core Rev.C (LE).
config XTENSA_VARIANT_S6000
bool "s6000 - Stretch software configurable processor"
select VARIANT_IRQ_SWITCH
select ARCH_REQUIRE_GPIOLIB
select XTENSA_CALIBRATE_CCOUNT
config XTENSA_VARIANT_CUSTOM
bool "Custom Xtensa processor configuration"
select MAY_HAVE_SMP
@ -126,7 +120,6 @@ config XTENSA_VARIANT_NAME
default "dc232b" if XTENSA_VARIANT_DC232B
default "dc233c" if XTENSA_VARIANT_DC233C
default "fsf" if XTENSA_VARIANT_FSF
default "s6000" if XTENSA_VARIANT_S6000
default XTENSA_VARIANT_CUSTOM_NAME if XTENSA_VARIANT_CUSTOM
config XTENSA_VARIANT_MMU
@ -191,7 +184,6 @@ config HOTPLUG_CPU
config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
bool "Initialize Xtensa MMU inside the Linux kernel code"
depends on MMU
default y
help
Earlier version initialized the MMU in the exception vector
@ -311,15 +303,10 @@ config XTENSA_PLATFORM_XT2000
XT2000 is the name of Tensilica's feature-rich emulation platform.
This hardware is capable of running a full Linux distribution.
config XTENSA_PLATFORM_S6105
bool "S6105"
select HAVE_IDE
select SERIAL_CONSOLE
select NO_IOPORT_MAP
config XTENSA_PLATFORM_XTFPGA
bool "XTFPGA"
select ETHOC if ETHERNET
select PLATFORM_WANT_DEFAULT_MEM
select SERIAL_CONSOLE
select XTENSA_CALIBRATE_CCOUNT
help
@ -406,6 +393,41 @@ source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
config PLATFORM_WANT_DEFAULT_MEM
def_bool n
config DEFAULT_MEM_START
hex "Physical address of the default memory area start"
depends on PLATFORM_WANT_DEFAULT_MEM
default 0x00000000 if MMU
default 0x40000000 if !MMU
help
This is a fallback start address of the default memory area, it is
used when no physical memory size is passed through DTB or through
boot parameter from bootloader.
In noMMU configuration the following parameters are derived from it:
- kernel load address;
- kernel entry point address;
- relocatable vectors base address;
- uBoot load address;
- TASK_SIZE.
If unsure, leave the default value here.
config DEFAULT_MEM_SIZE
hex "Maximal size of the default memory area"
depends on PLATFORM_WANT_DEFAULT_MEM
default 0x04000000
help
This is a fallback size of the default memory area, it is used when
no physical memory size is passed through DTB or through boot
parameter from bootloader.
It's also used for TASK_SIZE calculation in noMMU configuration.
If unsure, leave the default value here.
endmenu
menu "Executable file formats"

2
arch/xtensa/Kconfig.debug
Просмотреть файл

@ -4,7 +4,7 @@ source "lib/Kconfig.debug"
config DEBUG_TLB_SANITY
bool "Debug TLB sanity"
depends on DEBUG_KERNEL
depends on DEBUG_KERNEL && MMU
help
Enable this to turn on TLB sanity check on each entry to userspace.
This check can spot missing TLB invalidation/wrong PTE permissions/

1
arch/xtensa/Makefile
Просмотреть файл

@ -35,7 +35,6 @@ endif
platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105
platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga
PLATFORM = $(platform-y)

2
arch/xtensa/boot/boot-elf/boot.lds.S
Просмотреть файл

@ -41,6 +41,7 @@ SECTIONS
__bss_end = .;
}
#ifdef CONFIG_MMU
/*
* This is a remapped copy of the Reset Vector Code.
* It keeps gdb in sync with the PC after switching
@ -51,4 +52,5 @@ SECTIONS
{
*(.ResetVector.remapped_text)
}
#endif
}

10
arch/xtensa/boot/boot-elf/bootstrap.S
Просмотреть файл

@ -20,6 +20,7 @@
#include <asm/page.h>
#include <asm/cacheasm.h>
#include <asm/initialize_mmu.h>
#include <asm/vectors.h>
#include <linux/linkage.h>
.section .ResetVector.text, "ax"
@ -34,12 +35,7 @@ _ResetVector:
.align 4
RomInitAddr:
#if defined(CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX) && \
XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
.word 0x00003000
#else
.word 0xd0003000
#endif
.word LOAD_MEMORY_ADDRESS
RomBootParam:
.word _bootparam
_bootparam:
@ -79,6 +75,7 @@ reset:
movi a4, 0
jx a0
#ifdef CONFIG_MMU
.align 4
.section .ResetVector.remapped_text, "x"
@ -102,3 +99,4 @@ _RemappedSetupMMU:
#endif
.end no-absolute-literals
#endif

4
arch/xtensa/boot/boot-uboot/Makefile
Просмотреть файл

@ -4,11 +4,15 @@
# for more details.
#
ifdef CONFIG_MMU
ifdef CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
UIMAGE_LOADADDR = 0x00003000
else
UIMAGE_LOADADDR = 0xd0003000
endif
else
UIMAGE_LOADADDR = $(shell printf "0x%x" $$(( ${CONFIG_DEFAULT_MEM_START} + 0x3000 )) )
endif
UIMAGE_COMPRESSION = gzip
$(obj)/../uImage: vmlinux.bin.gz FORCE

2
arch/xtensa/configs/iss_defconfig
Просмотреть файл

@ -143,7 +143,6 @@ CONFIG_MMU=y
#
CONFIG_XTENSA_VARIANT_FSF=y
# CONFIG_XTENSA_VARIANT_DC232B is not set
# CONFIG_XTENSA_VARIANT_S6000 is not set
# CONFIG_XTENSA_UNALIGNED_USER is not set
# CONFIG_PREEMPT is not set
CONFIG_XTENSA_CALIBRATE_CCOUNT=y
@ -161,7 +160,6 @@ CONFIG_XTENSA_ISS_NETWORK=y
#
CONFIG_XTENSA_PLATFORM_ISS=y
# CONFIG_XTENSA_PLATFORM_XT2000 is not set
# CONFIG_XTENSA_PLATFORM_S6105 is not set
# CONFIG_GENERIC_CALIBRATE_DELAY is not set
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0,38400 eth0=tuntap,,tap0 ip=192.168.168.5:192.168.168.1 root=nfs nfsroot=192.168.168.1:/opt/montavista/pro/devkit/xtensa/linux_be/target"

615
arch/xtensa/configs/s6105_defconfig
Просмотреть файл

@ -1,615 +0,0 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-rc7-s6
# Tue Mar 10 11:09:26 2009
#
# CONFIG_FRAME_POINTER is not set
CONFIG_ZONE_DMA=y
CONFIG_XTENSA=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_NO_IOPORT_MAP=y
CONFIG_HZ=100
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
#
# RCU Subsystem
#
# CONFIG_CLASSIC_RCU is not set
# CONFIG_TREE_RCU is not set
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_TRACE is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
# CONFIG_NAMESPACES is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
# CONFIG_HOTPLUG is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
# CONFIG_COMPAT_BRK is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_LBD is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_FREEZER is not set
# CONFIG_MMU is not set
CONFIG_VARIANT_IRQ_SWITCH=y
#
# Processor type and features
#
# CONFIG_XTENSA_VARIANT_FSF is not set
# CONFIG_XTENSA_VARIANT_DC232B is not set
CONFIG_XTENSA_VARIANT_S6000=y
# CONFIG_XTENSA_UNALIGNED_USER is not set
CONFIG_PREEMPT=y
# CONFIG_HIGHMEM is not set
CONFIG_XTENSA_CALIBRATE_CCOUNT=y
CONFIG_SERIAL_CONSOLE=y
# CONFIG_XTENSA_ISS_NETWORK is not set
#
# Bus options
#
# CONFIG_PCI is not set
# CONFIG_ARCH_SUPPORTS_MSI is not set
#
# Platform options
#
# CONFIG_XTENSA_PLATFORM_ISS is not set
# CONFIG_XTENSA_PLATFORM_XT2000 is not set
CONFIG_XTENSA_PLATFORM_S6105=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS1,38400 debug bootmem_debug loglevel=7"
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=1
CONFIG_VIRT_TO_BUS=y
#
# Executable file formats
#
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_FLAT=y
# CONFIG_BINFMT_ZFLAT is not set
# CONFIG_BINFMT_SHARED_FLAT is not set
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_NET=y
#
# Networking options
#
CONFIG_COMPAT_NET_DEV_OPS=y
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_PHONET is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_MISC_DEVICES is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# CONFIG_SCSI_DMA is not set
# CONFIG_SCSI_NETLINK is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
CONFIG_SMSC_PHY=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
# CONFIG_NET_ETHERNET is not set
CONFIG_NETDEV_1000=y
CONFIG_S6GMAC=y
# CONFIG_NETDEV_10000 is not set
#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
# CONFIG_IWLWIFI_LEDS is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set
#
# Input device support
#
# CONFIG_INPUT is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=2
CONFIG_SERIAL_8250_RUNTIME_UARTS=2
# CONFIG_SERIAL_8250_EXTENDED is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set
CONFIG_ARCH_REQUIRE_GPIOLIB=y
CONFIG_GPIOLIB=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
#
# Memory mapped GPIO expanders:
#
#
# I2C GPIO expanders:
#
#
# PCI GPIO expanders:
#
#
# SPI GPIO expanders:
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set
#
# Multimedia devices
#
#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set
#
# Multimedia drivers
#
# CONFIG_DAB is not set
#
# Graphics support
#
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
# CONFIG_SOUND is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_PROC is not set
# CONFIG_RTC_INTF_DEV is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
CONFIG_RTC_DRV_M41T80=y
# CONFIG_RTC_DRV_M41T80_WDT is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
# CONFIG_DMADEVICES is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set
# CONFIG_DLM is not set
#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_NOMMU_REGIONS=y
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
#
# Tracers
#
# CONFIG_PREEMPT_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_CONTEXT_SWITCH_TRACER is not set
# CONFIG_BOOT_TRACER is not set
# CONFIG_TRACE_BRANCH_PROFILING is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_SAMPLES is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
# CONFIG_CRYPTO is not set
#
# Library routines
#
CONFIG_GENERIC_FIND_LAST_BIT=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
# CONFIG_CRC32 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_DMA=y

7
arch/xtensa/include/asm/cacheflush.h
Просмотреть файл

@ -67,6 +67,8 @@ extern void __invalidate_dcache_page_alias(unsigned long, unsigned long);
#else
static inline void __flush_invalidate_dcache_page_alias(unsigned long virt,
unsigned long phys) { }
static inline void __invalidate_dcache_page_alias(unsigned long virt,
unsigned long phys) { }
#endif
#if defined(CONFIG_MMU) && (ICACHE_WAY_SIZE > PAGE_SIZE)
extern void __invalidate_icache_page_alias(unsigned long, unsigned long);
@ -84,7 +86,8 @@ static inline void __invalidate_icache_page_alias(unsigned long virt,
* (see also Documentation/cachetlb.txt)
*/
#if (DCACHE_WAY_SIZE > PAGE_SIZE) || defined(CONFIG_SMP)
#if defined(CONFIG_MMU) && \
((DCACHE_WAY_SIZE > PAGE_SIZE) || defined(CONFIG_SMP))
#ifdef CONFIG_SMP
void flush_cache_all(void);
@ -150,7 +153,7 @@ void local_flush_cache_page(struct vm_area_struct *vma,
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
#if (DCACHE_WAY_SIZE > PAGE_SIZE)
#if defined(CONFIG_MMU) && (DCACHE_WAY_SIZE > PAGE_SIZE)
extern void copy_to_user_page(struct vm_area_struct*, struct page*,
unsigned long, void*, const void*, unsigned long);

40
arch/xtensa/include/asm/initialize_mmu.h
Просмотреть файл

@ -26,8 +26,16 @@
#include <asm/pgtable.h>
#include <asm/vectors.h>
#if XCHAL_HAVE_PTP_MMU
#define CA_BYPASS (_PAGE_CA_BYPASS | _PAGE_HW_WRITE | _PAGE_HW_EXEC)
#define CA_WRITEBACK (_PAGE_CA_WB | _PAGE_HW_WRITE | _PAGE_HW_EXEC)
#else
#define CA_WRITEBACK (0x4)
#endif
#ifndef XCHAL_SPANNING_WAY
#define XCHAL_SPANNING_WAY 0
#endif
#ifdef __ASSEMBLY__
@ -75,7 +83,7 @@
/* Step 1: invalidate mapping at 0x40000000..0x5FFFFFFF. */
movi a2, 0x40000006
movi a2, 0x40000000 | XCHAL_SPANNING_WAY
idtlb a2
iitlb a2
isync
@ -141,9 +149,6 @@
jx a4
1:
movi a2, VECBASE_RESET_VADDR
wsr a2, vecbase
/* Step 5: remove temporary mapping. */
idtlb a7
iitlb a7
@ -156,6 +161,33 @@
#endif /* defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU &&
XCHAL_HAVE_SPANNING_WAY */
#if !defined(CONFIG_MMU) && XCHAL_HAVE_TLBS
/* Enable data and instruction cache in the DEFAULT_MEMORY region
* if the processor has DTLB and ITLB.
*/
movi a5, PLATFORM_DEFAULT_MEM_START | XCHAL_SPANNING_WAY
movi a6, ~_PAGE_ATTRIB_MASK
movi a7, CA_WRITEBACK
movi a8, 0x20000000
movi a9, PLATFORM_DEFAULT_MEM_SIZE
j 2f
1:
sub a9, a9, a8
2:
rdtlb1 a3, a5
ritlb1 a4, a5
and a3, a3, a6
and a4, a4, a6
or a3, a3, a7
or a4, a4, a7
wdtlb a3, a5
witlb a4, a5
add a5, a5, a8
bltu a8, a9, 1b
#endif
.endm
#endif /*__ASSEMBLY__*/

4
arch/xtensa/include/asm/mmu_context.h
Просмотреть файл

@ -50,11 +50,7 @@ DECLARE_PER_CPU(unsigned long, asid_cache);
#define ASID_MASK ((1 << XCHAL_MMU_ASID_BITS) - 1)
#define ASID_INSERT(x) (0x03020001 | (((x) & ASID_MASK) << 8))
#ifdef CONFIG_MMU
void init_mmu(void);
#else
static inline void init_mmu(void) { }
#endif
static inline void set_rasid_register (unsigned long val)
{

4
arch/xtensa/include/asm/nommu_context.h
Просмотреть файл

@ -1,3 +1,7 @@
static inline void init_mmu(void)
{
}
static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
}

12
arch/xtensa/include/asm/page.h
Просмотреть файл

@ -20,10 +20,10 @@
* Fixed TLB translations in the processor.
*/
#define XCHAL_KSEG_CACHED_VADDR 0xd0000000
#define XCHAL_KSEG_BYPASS_VADDR 0xd8000000
#define XCHAL_KSEG_PADDR 0x00000000
#define XCHAL_KSEG_SIZE 0x08000000
#define XCHAL_KSEG_CACHED_VADDR __XTENSA_UL_CONST(0xd0000000)
#define XCHAL_KSEG_BYPASS_VADDR __XTENSA_UL_CONST(0xd8000000)
#define XCHAL_KSEG_PADDR __XTENSA_UL_CONST(0x00000000)
#define XCHAL_KSEG_SIZE __XTENSA_UL_CONST(0x08000000)
/*
* PAGE_SHIFT determines the page size
@ -37,7 +37,7 @@
#define PAGE_OFFSET XCHAL_KSEG_CACHED_VADDR
#define MAX_MEM_PFN XCHAL_KSEG_SIZE
#else
#define PAGE_OFFSET 0
#define PAGE_OFFSET __XTENSA_UL_CONST(0)
#define MAX_MEM_PFN (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE)
#endif
@ -145,7 +145,7 @@ extern void copy_page(void *to, void *from);
* some extra work
*/
#if DCACHE_WAY_SIZE > PAGE_SIZE
#if defined(CONFIG_MMU) && DCACHE_WAY_SIZE > PAGE_SIZE
extern void clear_page_alias(void *vaddr, unsigned long paddr);
extern void copy_page_alias(void *to, void *from,
unsigned long to_paddr, unsigned long from_paddr);

1
arch/xtensa/include/asm/pgtable.h
Просмотреть файл

@ -178,6 +178,7 @@
#else /* no mmu */
# define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
# define PAGE_NONE __pgprot(0)
# define PAGE_SHARED __pgprot(0)
# define PAGE_COPY __pgprot(0)

7
arch/xtensa/include/asm/vectors.h
Просмотреть файл

@ -19,6 +19,7 @@
#define _XTENSA_VECTORS_H
#include <variant/core.h>
#include <platform/hardware.h>
#define XCHAL_KIO_CACHED_VADDR 0xe0000000
#define XCHAL_KIO_BYPASS_VADDR 0xf0000000
@ -51,13 +52,13 @@
/* MMU Not being used - Virtual == Physical */
/* VECBASE */
#define VIRTUAL_MEMORY_ADDRESS 0x00002000
#define VIRTUAL_MEMORY_ADDRESS (PLATFORM_DEFAULT_MEM_START + 0x2000)
/* Location of the start of the kernel text, _start */
#define KERNELOFFSET 0x00003000
#define KERNELOFFSET (PLATFORM_DEFAULT_MEM_START + 0x3000)
/* Loaded just above possibly live vectors */
#define LOAD_MEMORY_ADDRESS 0x00003000
#define LOAD_MEMORY_ADDRESS (PLATFORM_DEFAULT_MEM_START + 0x3000)
#endif /* CONFIG_MMU */

6
arch/xtensa/include/uapi/asm/mman.h
Просмотреть файл

@ -55,6 +55,12 @@
#define MAP_NONBLOCK 0x20000 /* do not block on IO */
#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */
#define MAP_HUGETLB 0x80000 /* create a huge page mapping */
#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could be
* uninitialized */
#else
# define MAP_UNINITIALIZED 0x0 /* Don't support this flag */
#endif
/*
* Flags for msync

5
arch/xtensa/kernel/head.S
Просмотреть файл

@ -112,6 +112,11 @@ ENTRY(_startup)
movi a0, 0
#if XCHAL_HAVE_VECBASE
movi a2, VECBASE_RESET_VADDR
wsr a2, vecbase
#endif
/* Clear debugging registers. */
#if XCHAL_HAVE_DEBUG

2
arch/xtensa/kernel/syscall.c
Просмотреть файл

@ -57,6 +57,7 @@ asmlinkage long xtensa_fadvise64_64(int fd, int advice,
return sys_fadvise64_64(fd, offset, len, advice);
}
#ifdef CONFIG_MMU
unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags)
{
@ -93,3 +94,4 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
addr = COLOUR_ALIGN(addr, pgoff);
}
}
#endif

4
arch/xtensa/mm/Makefile
Просмотреть файл

@ -2,6 +2,6 @@
# Makefile for the Linux/Xtensa-specific parts of the memory manager.
#
obj-y := init.o cache.o misc.o
obj-$(CONFIG_MMU) += fault.o mmu.o tlb.o
obj-y := init.o misc.o
obj-$(CONFIG_MMU) += cache.o fault.o mmu.o tlb.o
obj-$(CONFIG_HIGHMEM) += highmem.o

19
arch/xtensa/mm/init.c
Просмотреть файл

@ -239,6 +239,17 @@ void __init bootmem_init(void)
unsigned long bootmap_start, bootmap_size;
int i;
/* Reserve all memory below PLATFORM_DEFAULT_MEM_START, as memory
* accounting doesn't work for pages below that address.
*
* If PLATFORM_DEFAULT_MEM_START is zero reserve page at address 0:
* successfull allocations should never return NULL.
*/
if (PLATFORM_DEFAULT_MEM_START)
mem_reserve(0, PLATFORM_DEFAULT_MEM_START, 0);
else
mem_reserve(0, 1, 0);
sysmem_dump();
max_low_pfn = max_pfn = 0;
min_low_pfn = ~0;
@ -332,18 +343,24 @@ void __init mem_init(void)
" pkmap : 0x%08lx - 0x%08lx (%5lu kB)\n"
" fixmap : 0x%08lx - 0x%08lx (%5lu kB)\n"
#endif
#ifdef CONFIG_MMU
" vmalloc : 0x%08x - 0x%08x (%5u MB)\n"
" lowmem : 0x%08x - 0x%08lx (%5lu MB)\n",
#endif
" lowmem : 0x%08lx - 0x%08lx (%5lu MB)\n",
#ifdef CONFIG_HIGHMEM
PKMAP_BASE, PKMAP_BASE + LAST_PKMAP * PAGE_SIZE,
(LAST_PKMAP*PAGE_SIZE) >> 10,
FIXADDR_START, FIXADDR_TOP,
(FIXADDR_TOP - FIXADDR_START) >> 10,
#endif
#ifdef CONFIG_MMU
VMALLOC_START, VMALLOC_END,
(VMALLOC_END - VMALLOC_START) >> 20,
PAGE_OFFSET, PAGE_OFFSET +
(max_low_pfn - min_low_pfn) * PAGE_SIZE,
#else
min_low_pfn * PAGE_SIZE, max_low_pfn * PAGE_SIZE,
#endif
((max_low_pfn - min_low_pfn) * PAGE_SIZE) >> 20);
}

3
arch/xtensa/platforms/s6105/Makefile
Просмотреть файл

@ -1,3 +0,0 @@
# Makefile for the Stretch S6105 eval board
obj-y := setup.o device.o

161
arch/xtensa/platforms/s6105/device.c
Просмотреть файл

@ -1,161 +0,0 @@
/*
* s6105 platform devices
*
* Copyright (c) 2009 emlix GmbH
*/
#include <linux/kernel.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/phy.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <variant/hardware.h>
#include <variant/dmac.h>
#include <platform/gpio.h>
#define GPIO3_INTNUM 3
#define UART_INTNUM 4
#define GMAC_INTNUM 5
static const signed char gpio3_irq_mappings[] = {
S6_INTC_GPIO(3),
-1
};
static const signed char uart_irq_mappings[] = {
S6_INTC_UART(0),
S6_INTC_UART(1),
-1,
};
static const signed char gmac_irq_mappings[] = {
S6_INTC_GMAC_STAT,
S6_INTC_GMAC_ERR,
S6_INTC_DMA_HOSTTERMCNT(0),
S6_INTC_DMA_HOSTTERMCNT(1),
-1
};
const signed char *platform_irq_mappings[NR_IRQS] = {
[GPIO3_INTNUM] = gpio3_irq_mappings,
[UART_INTNUM] = uart_irq_mappings,
[GMAC_INTNUM] = gmac_irq_mappings,
};
static struct plat_serial8250_port serial_platform_data[] = {
{
.membase = (void *)S6_REG_UART + 0x0000,
.mapbase = S6_REG_UART + 0x0000,
.irq = UART_INTNUM,
.uartclk = S6_SCLK,
.regshift = 2,
.iotype = SERIAL_IO_MEM,
.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
},
{
.membase = (void *)S6_REG_UART + 0x1000,
.mapbase = S6_REG_UART + 0x1000,
.irq = UART_INTNUM,
.uartclk = S6_SCLK,
.regshift = 2,
.iotype = SERIAL_IO_MEM,
.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
},
{ },
};
static struct resource s6_gmac_resource[] = {
{
.name = "mem",
.start = (resource_size_t)S6_REG_GMAC,
.end = (resource_size_t)S6_REG_GMAC + 0x10000 - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "dma",
.start = (resource_size_t)
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX),
.end = (resource_size_t)
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX) + 0x100 - 1,
.flags = IORESOURCE_DMA,
},
{
.name = "dma",
.start = (resource_size_t)
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX),
.end = (resource_size_t)
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX) + 0x100 - 1,
.flags = IORESOURCE_DMA,
},
{
.name = "io",
.start = (resource_size_t)S6_MEM_GMAC,
.end = (resource_size_t)S6_MEM_GMAC + 0x2000000 - 1,
.flags = IORESOURCE_IO,
},
{
.name = "irq",
.start = (resource_size_t)GMAC_INTNUM,
.flags = IORESOURCE_IRQ,
},
{
.name = "irq",
.start = (resource_size_t)PHY_POLL,
.flags = IORESOURCE_IRQ,
},
};
static int __init prepare_phy_irq(int pin)
{
int irq;
if (gpio_request(pin, "s6gmac_phy") < 0)
goto fail;
if (gpio_direction_input(pin) < 0)
goto free;
irq = gpio_to_irq(pin);
if (irq < 0)
goto free;
if (irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
goto free;
return irq;
free:
gpio_free(pin);
fail:
return PHY_POLL;
}
static struct platform_device platform_devices[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_platform_data,
},
},
{
.name = "s6gmac",
.id = 0,
.resource = s6_gmac_resource,
.num_resources = ARRAY_SIZE(s6_gmac_resource),
},
{
I2C_BOARD_INFO("m41t62", S6I2C_ADDR_M41T62),
},
};
static int __init device_init(void)
{
int i;
s6_gmac_resource[5].start = prepare_phy_irq(GPIO_PHY_IRQ);
for (i = 0; i < ARRAY_SIZE(platform_devices); i++)
platform_device_register(&platform_devices[i]);
return 0;
}
arch_initcall_sync(device_init);

27
arch/xtensa/platforms/s6105/include/platform/gpio.h
Просмотреть файл

@ -1,27 +0,0 @@
#ifndef __ASM_XTENSA_S6105_GPIO_H
#define __ASM_XTENSA_S6105_GPIO_H
#define GPIO_BP_TEMP_ALARM 0
#define GPIO_PB_RESET_IN 1
#define GPIO_EXP_IRQ 2
#define GPIO_TRIGGER_IRQ 3
#define GPIO_RTC_IRQ 4
#define GPIO_PHY_IRQ 5
#define GPIO_IMAGER_RESET 6
#define GPIO_SD_IRQ 7
#define GPIO_MINI_BOOT_INH 8
#define GPIO_BOARD_RESET 9
#define GPIO_EXP_PRESENT 10
#define GPIO_LED1_NGREEN 12
#define GPIO_LED1_RED 13
#define GPIO_LED0_NGREEN 14
#define GPIO_LED0_NRED 15
#define GPIO_SPI_CS0 16
#define GPIO_SPI_CS1 17
#define GPIO_SPI_CS3 19
#define GPIO_SPI_CS4 20
#define GPIO_SD_WP 21
#define GPIO_BP_RESET 22
#define GPIO_ALARM_OUT 23
#endif /* __ASM_XTENSA_S6105_GPIO_H */

11
arch/xtensa/platforms/s6105/include/platform/hardware.h
Просмотреть файл

@ -1,11 +0,0 @@
#ifndef __XTENSA_S6105_HARDWARE_H
#define __XTENSA_S6105_HARDWARE_H
#define PLATFORM_DEFAULT_MEM_START 0x40000000
#define PLATFORM_DEFAULT_MEM_SIZE 0x08000000
#define MAX_DMA_ADDRESS 0
#define KERNELOFFSET (PLATFORM_DEFAULT_MEM_START + 0x1000)
#endif /* __XTENSA_S6105_HARDWARE_H */

8
arch/xtensa/platforms/s6105/include/platform/serial.h
Просмотреть файл

@ -1,8 +0,0 @@
#ifndef __ASM_XTENSA_S6105_SERIAL_H
#define __ASM_XTENSA_S6105_SERIAL_H
#include <variant/hardware.h>
#define BASE_BAUD (S6_SCLK / 16)
#endif /* __ASM_XTENSA_S6105_SERIAL_H */

73
arch/xtensa/platforms/s6105/setup.c
Просмотреть файл

@ -1,73 +0,0 @@
/*
* s6105 control routines
*
* Copyright (c) 2009 emlix GmbH
*/
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <asm/bootparam.h>
#include <variant/hardware.h>
#include <variant/gpio.h>
#include <platform/gpio.h>
void platform_halt(void)
{
local_irq_disable();
while (1)
;
}
void platform_power_off(void)
{
platform_halt();
}
void platform_restart(void)
{
platform_halt();
}
void __init platform_setup(char **cmdline)
{
unsigned long reg;
reg = readl(S6_REG_GREG1 + S6_GREG1_PLLSEL);
reg &= ~(S6_GREG1_PLLSEL_GMAC_MASK << S6_GREG1_PLLSEL_GMAC |
S6_GREG1_PLLSEL_GMII_MASK << S6_GREG1_PLLSEL_GMII);
reg |= S6_GREG1_PLLSEL_GMAC_125MHZ << S6_GREG1_PLLSEL_GMAC |
S6_GREG1_PLLSEL_GMII_125MHZ << S6_GREG1_PLLSEL_GMII;
writel(reg, S6_REG_GREG1 + S6_GREG1_PLLSEL);
reg = readl(S6_REG_GREG1 + S6_GREG1_CLKGATE);
reg &= ~(1 << S6_GREG1_BLOCK_SB);
reg &= ~(1 << S6_GREG1_BLOCK_GMAC);
writel(reg, S6_REG_GREG1 + S6_GREG1_CLKGATE);
reg = readl(S6_REG_GREG1 + S6_GREG1_BLOCKENA);
reg |= 1 << S6_GREG1_BLOCK_SB;
reg |= 1 << S6_GREG1_BLOCK_GMAC;
writel(reg, S6_REG_GREG1 + S6_GREG1_BLOCKENA);
printk(KERN_NOTICE "S6105 on Stretch S6000 - "
"Copyright (C) 2009 emlix GmbH <info@emlix.com>\n");
}
void __init platform_init(bp_tag_t *first)
{
s6_gpio_init(0);
gpio_request(GPIO_LED1_NGREEN, "led1_green");
gpio_request(GPIO_LED1_RED, "led1_red");
gpio_direction_output(GPIO_LED1_NGREEN, 1);
}
void platform_heartbeat(void)
{
static unsigned int c;
if (!(++c & 0x4F))
gpio_direction_output(GPIO_LED1_RED, !(c & 0x10));
}

4
arch/xtensa/platforms/xtfpga/include/platform/hardware.h
Просмотреть файл

@ -17,8 +17,8 @@
/* Memory configuration. */
#define PLATFORM_DEFAULT_MEM_START 0x00000000
#define PLATFORM_DEFAULT_MEM_SIZE 0x04000000
#define PLATFORM_DEFAULT_MEM_START CONFIG_DEFAULT_MEM_START
#define PLATFORM_DEFAULT_MEM_SIZE CONFIG_DEFAULT_MEM_SIZE
/* Interrupt configuration. */

4
arch/xtensa/variants/s6000/Makefile
Просмотреть файл

@ -1,4 +0,0 @@
# s6000 Makefile
obj-y += irq.o gpio.o dmac.o
obj-$(CONFIG_XTENSA_CALIBRATE_CCOUNT) += delay.o

25
arch/xtensa/variants/s6000/delay.c
Просмотреть файл

@ -1,25 +0,0 @@
#include <asm/timex.h>
#include <asm/io.h>
#include <variant/hardware.h>
#define LOOPS 10
void platform_calibrate_ccount(void)
{
u32 uninitialized_var(a);
u32 uninitialized_var(u);
u32 b;
u32 tstamp = S6_REG_GREG1 + S6_GREG1_GLOBAL_TIMER;
int i = LOOPS+1;
do {
u32 t = u;
asm volatile(
"1: l32i %0, %2, 0 ;"
" beq %0, %1, 1b ;"
: "=&a"(u) : "a"(t), "a"(tstamp));
b = get_ccount();
if (i == LOOPS)
a = b;
} while (--i >= 0);
b -= a;
ccount_freq = b * (100000UL / LOOPS);
}

173
arch/xtensa/variants/s6000/dmac.c
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@ -1,173 +0,0 @@
/*
* Authors: Oskar Schirmer <oskar@scara.com>
* Daniel Gloeckner <dg@emlix.com>
* (c) 2008 emlix GmbH http://www.emlix.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/spinlock.h>
#include <asm/cacheflush.h>
#include <variant/dmac.h>
/* DMA engine lookup */
struct s6dmac_ctrl s6dmac_ctrl[S6_DMAC_NB];
/* DMA control, per engine */
void s6dmac_put_fifo_cache(u32 dmac, int chan, u32 src, u32 dst, u32 size)
{
if (xtensa_need_flush_dma_source(src)) {
u32 base = src;
u32 span = size;
u32 chunk = readl(DMA_CHNL(dmac, chan) + S6_DMA_CMONCHUNK);
if (chunk && (size > chunk)) {
s32 skip =
readl(DMA_CHNL(dmac, chan) + S6_DMA_SRCSKIP);
u32 gaps = (size+chunk-1)/chunk - 1;
if (skip >= 0) {
span += gaps * skip;
} else if (-skip > chunk) {
s32 decr = gaps * (chunk + skip);
base += decr;
span = chunk - decr;
} else {
span = max(span + gaps * skip,
(chunk + skip) * gaps - skip);
}
}
flush_dcache_unaligned(base, span);
}
if (xtensa_need_invalidate_dma_destination(dst)) {
u32 base = dst;
u32 span = size;
u32 chunk = readl(DMA_CHNL(dmac, chan) + S6_DMA_CMONCHUNK);
if (chunk && (size > chunk)) {
s32 skip =
readl(DMA_CHNL(dmac, chan) + S6_DMA_DSTSKIP);
u32 gaps = (size+chunk-1)/chunk - 1;
if (skip >= 0) {
span += gaps * skip;
} else if (-skip > chunk) {
s32 decr = gaps * (chunk + skip);
base += decr;
span = chunk - decr;
} else {
span = max(span + gaps * skip,
(chunk + skip) * gaps - skip);
}
}
invalidate_dcache_unaligned(base, span);
}
s6dmac_put_fifo(dmac, chan, src, dst, size);
}
void s6dmac_disable_error_irqs(u32 dmac, u32 mask)
{
unsigned long flags;
spinlock_t *spinl = &s6dmac_ctrl[_dmac_addr_index(dmac)].lock;
spin_lock_irqsave(spinl, flags);
_s6dmac_disable_error_irqs(dmac, mask);
spin_unlock_irqrestore(spinl, flags);
}
u32 s6dmac_int_sources(u32 dmac, u32 channel)
{
u32 mask, ret, tmp;
mask = 1 << channel;
tmp = readl(dmac + S6_DMA_TERMCNTIRQSTAT);
tmp &= mask;
writel(tmp, dmac + S6_DMA_TERMCNTIRQCLR);
ret = tmp >> channel;
tmp = readl(dmac + S6_DMA_PENDCNTIRQSTAT);
tmp &= mask;
writel(tmp, dmac + S6_DMA_PENDCNTIRQCLR);
ret |= (tmp >> channel) << 1;
tmp = readl(dmac + S6_DMA_LOWWMRKIRQSTAT);
tmp &= mask;
writel(tmp, dmac + S6_DMA_LOWWMRKIRQCLR);
ret |= (tmp >> channel) << 2;
tmp = readl(dmac + S6_DMA_INTRAW0);
tmp &= (mask << S6_DMA_INT0_OVER) | (mask << S6_DMA_INT0_UNDER);
writel(tmp, dmac + S6_DMA_INTCLEAR0);
if (tmp & (mask << S6_DMA_INT0_UNDER))
ret |= 1 << 3;
if (tmp & (mask << S6_DMA_INT0_OVER))
ret |= 1 << 4;
tmp = readl(dmac + S6_DMA_MASTERERRINFO);
mask <<= S6_DMA_INT1_CHANNEL;
if (((tmp >> S6_DMA_MASTERERR_CHAN(0)) & S6_DMA_MASTERERR_CHAN_MASK)
== channel)
mask |= 1 << S6_DMA_INT1_MASTER;
if (((tmp >> S6_DMA_MASTERERR_CHAN(1)) & S6_DMA_MASTERERR_CHAN_MASK)
== channel)
mask |= 1 << (S6_DMA_INT1_MASTER + 1);
if (((tmp >> S6_DMA_MASTERERR_CHAN(2)) & S6_DMA_MASTERERR_CHAN_MASK)
== channel)
mask |= 1 << (S6_DMA_INT1_MASTER + 2);
tmp = readl(dmac + S6_DMA_INTRAW1) & mask;
writel(tmp, dmac + S6_DMA_INTCLEAR1);
ret |= ((tmp >> channel) & 1) << 5;
ret |= ((tmp >> S6_DMA_INT1_MASTER) & S6_DMA_INT1_MASTER_MASK) << 6;
return ret;
}
void s6dmac_release_chan(u32 dmac, int chan)
{
if (chan >= 0)
s6dmac_disable_chan(dmac, chan);
}
/* global init */
static inline void __init dmac_init(u32 dmac, u8 chan_nb)
{
s6dmac_ctrl[S6_DMAC_INDEX(dmac)].dmac = dmac;
spin_lock_init(&s6dmac_ctrl[S6_DMAC_INDEX(dmac)].lock);
s6dmac_ctrl[S6_DMAC_INDEX(dmac)].chan_nb = chan_nb;
writel(S6_DMA_INT1_MASTER_MASK << S6_DMA_INT1_MASTER,
dmac + S6_DMA_INTCLEAR1);
}
static inline void __init dmac_master(u32 dmac,
u32 m0start, u32 m0end, u32 m1start, u32 m1end)
{
writel(m0start, dmac + S6_DMA_MASTER0START);
writel(m0end - 1, dmac + S6_DMA_MASTER0END);
writel(m1start, dmac + S6_DMA_MASTER1START);
writel(m1end - 1, dmac + S6_DMA_MASTER1END);
}
static void __init s6_dmac_init(void)
{
dmac_init(S6_REG_LMSDMA, S6_LMSDMA_NB);
dmac_master(S6_REG_LMSDMA,
S6_MEM_DDR, S6_MEM_PCIE_APER, S6_MEM_EFI, S6_MEM_GMAC);
dmac_init(S6_REG_NIDMA, S6_NIDMA_NB);
dmac_init(S6_REG_DPDMA, S6_DPDMA_NB);
dmac_master(S6_REG_DPDMA,
S6_MEM_DDR, S6_MEM_PCIE_APER, S6_REG_DP, S6_REG_DPDMA);
dmac_init(S6_REG_HIFDMA, S6_HIFDMA_NB);
dmac_master(S6_REG_HIFDMA,
S6_MEM_GMAC, S6_MEM_PCIE_CFG, S6_MEM_PCIE_APER, S6_MEM_AUX);
}
arch_initcall(s6_dmac_init);

230
arch/xtensa/variants/s6000/gpio.c
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@ -1,230 +0,0 @@
/*
* s6000 gpio driver
*
* Copyright (c) 2009 emlix GmbH
* Authors: Oskar Schirmer <oskar@scara.com>
* Johannes Weiner <hannes@cmpxchg.org>
* Daniel Gloeckner <dg@emlix.com>
*/
#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <variant/hardware.h>
#define IRQ_BASE XTENSA_NR_IRQS
#define S6_GPIO_DATA 0x000
#define S6_GPIO_IS 0x404
#define S6_GPIO_IBE 0x408
#define S6_GPIO_IEV 0x40C
#define S6_GPIO_IE 0x410
#define S6_GPIO_RIS 0x414
#define S6_GPIO_MIS 0x418
#define S6_GPIO_IC 0x41C
#define S6_GPIO_AFSEL 0x420
#define S6_GPIO_DIR 0x800
#define S6_GPIO_BANK(nr) ((nr) * 0x1000)
#define S6_GPIO_MASK(nr) (4 << (nr))
#define S6_GPIO_OFFSET(nr) \
(S6_GPIO_BANK((nr) >> 3) + S6_GPIO_MASK((nr) & 7))
static int direction_input(struct gpio_chip *chip, unsigned int off)
{
writeb(0, S6_REG_GPIO + S6_GPIO_DIR + S6_GPIO_OFFSET(off));
return 0;
}
static int get(struct gpio_chip *chip, unsigned int off)
{
return readb(S6_REG_GPIO + S6_GPIO_DATA + S6_GPIO_OFFSET(off));
}
static int direction_output(struct gpio_chip *chip, unsigned int off, int val)
{
unsigned rel = S6_GPIO_OFFSET(off);
writeb(~0, S6_REG_GPIO + S6_GPIO_DIR + rel);
writeb(val ? ~0 : 0, S6_REG_GPIO + S6_GPIO_DATA + rel);
return 0;
}
static void set(struct gpio_chip *chip, unsigned int off, int val)
{
writeb(val ? ~0 : 0, S6_REG_GPIO + S6_GPIO_DATA + S6_GPIO_OFFSET(off));
}
static int to_irq(struct gpio_chip *chip, unsigned offset)
{
if (offset < 8)
return offset + IRQ_BASE;
return -EINVAL;
}
static struct gpio_chip gpiochip = {
.owner = THIS_MODULE,
.direction_input = direction_input,
.get = get,
.direction_output = direction_output,
.set = set,
.to_irq = to_irq,
.base = 0,
.ngpio = 24,
.can_sleep = 0, /* no blocking io needed */
.exported = 0, /* no exporting to userspace */
};
int s6_gpio_init(u32 afsel)
{
writeb(afsel, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_AFSEL);
writeb(afsel >> 8, S6_REG_GPIO + S6_GPIO_BANK(1) + S6_GPIO_AFSEL);
writeb(afsel >> 16, S6_REG_GPIO + S6_GPIO_BANK(2) + S6_GPIO_AFSEL);
return gpiochip_add(&gpiochip);
}
static void ack(struct irq_data *d)
{
writeb(1 << (d->irq - IRQ_BASE), S6_REG_GPIO + S6_GPIO_IC);
}
static void mask(struct irq_data *d)
{
u8 r = readb(S6_REG_GPIO + S6_GPIO_IE);
r &= ~(1 << (d->irq - IRQ_BASE));
writeb(r, S6_REG_GPIO + S6_GPIO_IE);
}
static void unmask(struct irq_data *d)
{
u8 m = readb(S6_REG_GPIO + S6_GPIO_IE);
m |= 1 << (d->irq - IRQ_BASE);
writeb(m, S6_REG_GPIO + S6_GPIO_IE);
}
static int set_type(struct irq_data *d, unsigned int type)
{
const u8 m = 1 << (d->irq - IRQ_BASE);
irq_flow_handler_t handler;
u8 reg;
if (type == IRQ_TYPE_PROBE) {
if ((readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_AFSEL) & m)
|| (readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IE) & m)
|| readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_DIR
+ S6_GPIO_MASK(irq - IRQ_BASE)))
return 0;
type = IRQ_TYPE_EDGE_BOTH;
}
reg = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IS);
if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) {
reg |= m;
handler = handle_level_irq;
} else {
reg &= ~m;
handler = handle_edge_irq;
}
writeb(reg, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IS);
__irq_set_handler_locked(irq, handler);
reg = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IEV);
if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING))
reg |= m;
else
reg &= ~m;
writeb(reg, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IEV);
reg = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IBE);
if ((type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH)
reg |= m;
else
reg &= ~m;
writeb(reg, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IBE);
return 0;
}
static struct irq_chip gpioirqs = {
.name = "GPIO",
.irq_ack = ack,
.irq_mask = mask,
.irq_unmask = unmask,
.irq_set_type = set_type,
};
static u8 demux_masks[4];
static void demux_irqs(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
u8 *mask = irq_desc_get_handler_data(desc);
u8 pending;
int cirq;
chip->irq_mask(&desc->irq_data);
chip->irq_ack(&desc->irq_data);
pending = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_MIS) & *mask;
cirq = IRQ_BASE - 1;
while (pending) {
int n = ffs(pending);
cirq += n;
pending >>= n;
generic_handle_irq(cirq);
}
chip->irq_unmask(&desc->irq_data);
}
extern const signed char *platform_irq_mappings[XTENSA_NR_IRQS];
void __init variant_init_irq(void)
{
int irq, n;
writeb(0, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IE);
for (irq = n = 0; irq < XTENSA_NR_IRQS; irq++) {
const signed char *mapping = platform_irq_mappings[irq];
int alone = 1;
u8 mask;
if (!mapping)
continue;
for(mask = 0; *mapping != -1; mapping++)
switch (*mapping) {
case S6_INTC_GPIO(0):
mask |= 1 << 0;
break;
case S6_INTC_GPIO(1):
mask |= 1 << 1;
break;
case S6_INTC_GPIO(2):
mask |= 1 << 2;
break;
case S6_INTC_GPIO(3):
mask |= 0x1f << 3;
break;
default:
alone = 0;
}
if (mask) {
int cirq, i;
if (!alone) {
printk(KERN_ERR "chained irq chips can't share"
" parent irq %i\n", irq);
continue;
}
demux_masks[n] = mask;
cirq = IRQ_BASE - 1;
do {
i = ffs(mask);
cirq += i;
mask >>= i;
irq_set_chip(cirq, &gpioirqs);
irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
} while (mask);
irq_set_handler_data(irq, demux_masks + n);
irq_set_chained_handler(irq, demux_irqs);
if (++n == ARRAY_SIZE(demux_masks))
break;
}
}
}

431
arch/xtensa/variants/s6000/include/variant/core.h
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@ -1,431 +0,0 @@
/*
* Xtensa processor core configuration information.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 1999-2008 Tensilica Inc.
*/
#ifndef _XTENSA_CORE_CONFIGURATION_H
#define _XTENSA_CORE_CONFIGURATION_H
/****************************************************************************
Parameters Useful for Any Code, USER or PRIVILEGED
****************************************************************************/
/*
* Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is
* configured, and a value of 0 otherwise. These macros are always defined.
*/
/*----------------------------------------------------------------------
ISA
----------------------------------------------------------------------*/
#define XCHAL_HAVE_BE 0 /* big-endian byte ordering */
#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */
#define XCHAL_NUM_AREGS 64 /* num of physical addr regs */
#define XCHAL_NUM_AREGS_LOG2 6 /* log2(XCHAL_NUM_AREGS) */
#define XCHAL_MAX_INSTRUCTION_SIZE 8 /* max instr bytes (3..8) */
#define XCHAL_HAVE_DEBUG 1 /* debug option */
#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */
#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */
#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */
#define XCHAL_HAVE_MINMAX 1 /* MIN/MAX instructions */
#define XCHAL_HAVE_SEXT 1 /* SEXT instruction */
#define XCHAL_HAVE_CLAMPS 1 /* CLAMPS instruction */
#define XCHAL_HAVE_MUL16 1 /* MUL16S/MUL16U instructions */
#define XCHAL_HAVE_MUL32 1 /* MULL instruction */
#define XCHAL_HAVE_MUL32_HIGH 1 /* MULUH/MULSH instructions */
#define XCHAL_HAVE_DIV32 0 /* QUOS/QUOU/REMS/REMU instructions */
#define XCHAL_HAVE_L32R 1 /* L32R instruction */
#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */
#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */
#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */
#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */
#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */
#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */
#define XCHAL_HAVE_ABS 1 /* ABS instruction */
/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */
/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */
#define XCHAL_HAVE_RELEASE_SYNC 0 /* L32AI/S32RI instructions */
#define XCHAL_HAVE_S32C1I 0 /* S32C1I instruction */
#define XCHAL_HAVE_SPECULATION 0 /* speculation */
#define XCHAL_HAVE_FULL_RESET 0 /* all regs/state reset */
#define XCHAL_NUM_CONTEXTS 1 /* */
#define XCHAL_NUM_MISC_REGS 4 /* num of scratch regs (0..4) */
#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */
#define XCHAL_HAVE_PRID 0 /* processor ID register */
#define XCHAL_HAVE_THREADPTR 0 /* THREADPTR register */
#define XCHAL_HAVE_BOOLEANS 1 /* boolean registers */
#define XCHAL_HAVE_CP 1 /* CPENABLE reg (coprocessor) */
#define XCHAL_CP_MAXCFG 8 /* max allowed cp id plus one */
#define XCHAL_HAVE_MAC16 0 /* MAC16 package */
#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */
#define XCHAL_HAVE_FP 1 /* floating point pkg */
#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */
#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */
#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */
/*----------------------------------------------------------------------
MISC
----------------------------------------------------------------------*/
#define XCHAL_NUM_WRITEBUFFER_ENTRIES 8 /* size of write buffer */
#define XCHAL_INST_FETCH_WIDTH 8 /* instr-fetch width in bytes */
#define XCHAL_DATA_WIDTH 16 /* data width in bytes */
/* In T1050, applies to selected core load and store instructions (see ISA): */
#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */
#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/
#define XCHAL_SW_VERSION 701001 /* sw version of this header */
#define XCHAL_CORE_ID "stretch_bali" /* alphanum core name
(CoreID) set in the Xtensa
Processor Generator */
#define XCHAL_BUILD_UNIQUE_ID 0x000104B9 /* 22-bit sw build ID */
/*
* These definitions describe the hardware targeted by this software.
*/
#define XCHAL_HW_CONFIGID0 0xC2F3F9FE /* ConfigID hi 32 bits*/
#define XCHAL_HW_CONFIGID1 0x054104B9 /* ConfigID lo 32 bits*/
#define XCHAL_HW_VERSION_NAME "LX1.0.2" /* full version name */
#define XCHAL_HW_VERSION_MAJOR 2100 /* major ver# of targeted hw */
#define XCHAL_HW_VERSION_MINOR 2 /* minor ver# of targeted hw */
#define XCHAL_HW_VERSION 210002 /* major*100+minor */
#define XCHAL_HW_REL_LX1 1
#define XCHAL_HW_REL_LX1_0 1
#define XCHAL_HW_REL_LX1_0_2 1
#define XCHAL_HW_CONFIGID_RELIABLE 1
/* If software targets a *range* of hardware versions, these are the bounds: */
#define XCHAL_HW_MIN_VERSION_MAJOR 2100 /* major v of earliest tgt hw */
#define XCHAL_HW_MIN_VERSION_MINOR 2 /* minor v of earliest tgt hw */
#define XCHAL_HW_MIN_VERSION 210002 /* earliest targeted hw */
#define XCHAL_HW_MAX_VERSION_MAJOR 2100 /* major v of latest tgt hw */
#define XCHAL_HW_MAX_VERSION_MINOR 2 /* minor v of latest tgt hw */
#define XCHAL_HW_MAX_VERSION 210002 /* latest targeted hw */
/*----------------------------------------------------------------------
CACHE
----------------------------------------------------------------------*/
#define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
#define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
#define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
#define XCHAL_ICACHE_SIZE 32768 /* I-cache size in bytes or 0 */
#define XCHAL_DCACHE_SIZE 32768 /* D-cache size in bytes or 0 */
#define XCHAL_DCACHE_IS_WRITEBACK 1 /* writeback feature */
/****************************************************************************
Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code
****************************************************************************/
#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY
/*----------------------------------------------------------------------
CACHE
----------------------------------------------------------------------*/
#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */
/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */
/* Number of cache sets in log2(lines per way): */
#define XCHAL_ICACHE_SETWIDTH 9
#define XCHAL_DCACHE_SETWIDTH 10
/* Cache set associativity (number of ways): */
#define XCHAL_ICACHE_WAYS 4
#define XCHAL_DCACHE_WAYS 2
/* Cache features: */
#define XCHAL_ICACHE_LINE_LOCKABLE 1
#define XCHAL_DCACHE_LINE_LOCKABLE 0
#define XCHAL_ICACHE_ECC_PARITY 0
#define XCHAL_DCACHE_ECC_PARITY 0
/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */
#define XCHAL_CA_BITS 4
/*----------------------------------------------------------------------
INTERNAL I/D RAM/ROMs and XLMI
----------------------------------------------------------------------*/
#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */
#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */
#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */
#define XCHAL_NUM_DATARAM 1 /* number of core data RAMs */
#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/
#define XCHAL_NUM_XLMI 1 /* number of core XLMI ports */
/* Data RAM 0: */
#define XCHAL_DATARAM0_VADDR 0x3FFF0000
#define XCHAL_DATARAM0_PADDR 0x3FFF0000
#define XCHAL_DATARAM0_SIZE 65536
#define XCHAL_DATARAM0_ECC_PARITY 0
/* XLMI Port 0: */
#define XCHAL_XLMI0_VADDR 0x37F80000
#define XCHAL_XLMI0_PADDR 0x37F80000
#define XCHAL_XLMI0_SIZE 262144
#define XCHAL_XLMI0_ECC_PARITY 0
/*----------------------------------------------------------------------
INTERRUPTS and TIMERS
----------------------------------------------------------------------*/
#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */
#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */
#define XCHAL_HAVE_NMI 1 /* non-maskable interrupt */
#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */
#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */
#define XCHAL_NUM_INTERRUPTS 27 /* number of interrupts */
#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */
#define XCHAL_NUM_EXTINTERRUPTS 20 /* num of external interrupts */
#define XCHAL_NUM_INTLEVELS 4 /* number of interrupt levels
(not including level zero) */
#define XCHAL_EXCM_LEVEL 1 /* level masked by PS.EXCM */
/* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */
/* Masks of interrupts at each interrupt level: */
#define XCHAL_INTLEVEL1_MASK 0x01F07FFF
#define XCHAL_INTLEVEL2_MASK 0x02018000
#define XCHAL_INTLEVEL3_MASK 0x04060000
#define XCHAL_INTLEVEL4_MASK 0x00000000
#define XCHAL_INTLEVEL5_MASK 0x00080000
#define XCHAL_INTLEVEL6_MASK 0x00000000
#define XCHAL_INTLEVEL7_MASK 0x00000000
/* Masks of interrupts at each range 1..n of interrupt levels: */
#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x01F07FFF
#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x03F1FFFF
#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x07F7FFFF
#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x07F7FFFF
#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x07FFFFFF
#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x07FFFFFF
#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x07FFFFFF
/* Level of each interrupt: */
#define XCHAL_INT0_LEVEL 1
#define XCHAL_INT1_LEVEL 1
#define XCHAL_INT2_LEVEL 1
#define XCHAL_INT3_LEVEL 1
#define XCHAL_INT4_LEVEL 1
#define XCHAL_INT5_LEVEL 1
#define XCHAL_INT6_LEVEL 1
#define XCHAL_INT7_LEVEL 1
#define XCHAL_INT8_LEVEL 1
#define XCHAL_INT9_LEVEL 1
#define XCHAL_INT10_LEVEL 1
#define XCHAL_INT11_LEVEL 1
#define XCHAL_INT12_LEVEL 1
#define XCHAL_INT13_LEVEL 1
#define XCHAL_INT14_LEVEL 1
#define XCHAL_INT15_LEVEL 2
#define XCHAL_INT16_LEVEL 2
#define XCHAL_INT17_LEVEL 3
#define XCHAL_INT18_LEVEL 3
#define XCHAL_INT19_LEVEL 5
#define XCHAL_INT20_LEVEL 1
#define XCHAL_INT21_LEVEL 1
#define XCHAL_INT22_LEVEL 1
#define XCHAL_INT23_LEVEL 1
#define XCHAL_INT24_LEVEL 1
#define XCHAL_INT25_LEVEL 2
#define XCHAL_INT26_LEVEL 3
#define XCHAL_DEBUGLEVEL 4 /* debug interrupt level */
#define XCHAL_HAVE_DEBUG_EXTERN_INT 1 /* OCD external db interrupt */
#define XCHAL_NMILEVEL 5 /* NMI "level" (for use with
EXCSAVE/EPS/EPC_n, RFI n) */
/* Type of each interrupt: */
#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT6_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT7_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT10_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT11_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT12_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT13_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT14_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT15_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT16_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT17_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT18_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT19_TYPE XTHAL_INTTYPE_NMI
#define XCHAL_INT20_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT21_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT22_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT23_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT24_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT25_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT26_TYPE XTHAL_INTTYPE_TIMER
/* Masks of interrupts for each type of interrupt: */
#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xF8000000
#define XCHAL_INTTYPE_MASK_SOFTWARE 0x00F00000
#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x00000000
#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0007FFFF
#define XCHAL_INTTYPE_MASK_TIMER 0x07000000
#define XCHAL_INTTYPE_MASK_NMI 0x00080000
#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000
/* Interrupt numbers assigned to specific interrupt sources: */
#define XCHAL_TIMER0_INTERRUPT 24 /* CCOMPARE0 */
#define XCHAL_TIMER1_INTERRUPT 25 /* CCOMPARE1 */
#define XCHAL_TIMER2_INTERRUPT 26 /* CCOMPARE2 */
#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED
#define XCHAL_NMI_INTERRUPT 19 /* non-maskable interrupt */
/* Interrupt numbers for levels at which only one interrupt is configured: */
#define XCHAL_INTLEVEL5_NUM 19
/* (There are many interrupts each at level(s) 1, 2, 3.) */
/*
* External interrupt vectors/levels.
* These macros describe how Xtensa processor interrupt numbers
* (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
* map to external BInterrupt<n> pins, for those interrupts
* configured as external (level-triggered, edge-triggered, or NMI).
* See the Xtensa processor databook for more details.
*/
/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */
#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */
#define XCHAL_EXTINT1_NUM 1 /* (intlevel 1) */
#define XCHAL_EXTINT2_NUM 2 /* (intlevel 1) */
#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */
#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */
#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */
#define XCHAL_EXTINT6_NUM 6 /* (intlevel 1) */
#define XCHAL_EXTINT7_NUM 7 /* (intlevel 1) */
#define XCHAL_EXTINT8_NUM 8 /* (intlevel 1) */
#define XCHAL_EXTINT9_NUM 9 /* (intlevel 1) */
#define XCHAL_EXTINT10_NUM 10 /* (intlevel 1) */
#define XCHAL_EXTINT11_NUM 11 /* (intlevel 1) */
#define XCHAL_EXTINT12_NUM 12 /* (intlevel 1) */
#define XCHAL_EXTINT13_NUM 13 /* (intlevel 1) */
#define XCHAL_EXTINT14_NUM 14 /* (intlevel 1) */
#define XCHAL_EXTINT15_NUM 15 /* (intlevel 2) */
#define XCHAL_EXTINT16_NUM 16 /* (intlevel 2) */
#define XCHAL_EXTINT17_NUM 17 /* (intlevel 3) */
#define XCHAL_EXTINT18_NUM 18 /* (intlevel 3) */
#define XCHAL_EXTINT19_NUM 19 /* (intlevel 5) */
/*----------------------------------------------------------------------
EXCEPTIONS and VECTORS
----------------------------------------------------------------------*/
#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture
number: 1 == XEA1 (old)
2 == XEA2 (new)
0 == XEAX (extern) */
#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */
#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */
#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */
#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */
#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */
#define XCHAL_HAVE_VECTOR_SELECT 0 /* relocatable vectors */
#define XCHAL_HAVE_VECBASE 0 /* relocatable vectors */
#define XCHAL_RESET_VECOFS 0x00000000
#define XCHAL_RESET_VECTOR_VADDR 0x3FFE03D0
#define XCHAL_RESET_VECTOR_PADDR 0x3FFE03D0
#define XCHAL_USER_VECOFS 0x00000000
#define XCHAL_USER_VECTOR_VADDR 0x40000220
#define XCHAL_USER_VECTOR_PADDR 0x40000220
#define XCHAL_KERNEL_VECOFS 0x00000000
#define XCHAL_KERNEL_VECTOR_VADDR 0x40000200
#define XCHAL_KERNEL_VECTOR_PADDR 0x40000200
#define XCHAL_DOUBLEEXC_VECOFS 0x00000000
#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0x400002A0
#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x400002A0
#define XCHAL_WINDOW_OF4_VECOFS 0x00000000
#define XCHAL_WINDOW_UF4_VECOFS 0x00000040
#define XCHAL_WINDOW_OF8_VECOFS 0x00000080
#define XCHAL_WINDOW_UF8_VECOFS 0x000000C0
#define XCHAL_WINDOW_OF12_VECOFS 0x00000100
#define XCHAL_WINDOW_UF12_VECOFS 0x00000140
#define XCHAL_WINDOW_VECTORS_VADDR 0x40000000
#define XCHAL_WINDOW_VECTORS_PADDR 0x40000000
#define XCHAL_INTLEVEL2_VECOFS 0x00000000
#define XCHAL_INTLEVEL2_VECTOR_VADDR 0x40000240
#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x40000240
#define XCHAL_INTLEVEL3_VECOFS 0x00000000
#define XCHAL_INTLEVEL3_VECTOR_VADDR 0x40000260
#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x40000260
#define XCHAL_INTLEVEL4_VECOFS 0x00000000
#define XCHAL_INTLEVEL4_VECTOR_VADDR 0x40000390
#define XCHAL_INTLEVEL4_VECTOR_PADDR 0x40000390
#define XCHAL_DEBUG_VECOFS XCHAL_INTLEVEL4_VECOFS
#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR
#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL4_VECTOR_PADDR
#define XCHAL_NMI_VECOFS 0x00000000
#define XCHAL_NMI_VECTOR_VADDR 0x400003B0
#define XCHAL_NMI_VECTOR_PADDR 0x400003B0
#define XCHAL_INTLEVEL5_VECOFS XCHAL_NMI_VECOFS
#define XCHAL_INTLEVEL5_VECTOR_VADDR XCHAL_NMI_VECTOR_VADDR
#define XCHAL_INTLEVEL5_VECTOR_PADDR XCHAL_NMI_VECTOR_PADDR
/*----------------------------------------------------------------------
DEBUG
----------------------------------------------------------------------*/
#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */
#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */
#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */
#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */
/*----------------------------------------------------------------------
MMU
----------------------------------------------------------------------*/
/* See core-matmap.h header file for more details. */
#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */
#define XCHAL_HAVE_SPANNING_WAY 1 /* one way maps I+D 4GB vaddr */
#define XCHAL_HAVE_IDENTITY_MAP 1 /* vaddr == paddr always */
#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */
#define XCHAL_HAVE_MIMIC_CACHEATTR 1 /* region protection */
#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */
#define XCHAL_HAVE_PTP_MMU 0 /* full MMU (with page table
[autorefill] and protection)
usable for an MMU-based OS */
/* If none of the above last 4 are set, it's a custom TLB configuration. */
#define XCHAL_MMU_ASID_BITS 0 /* number of bits in ASIDs */
#define XCHAL_MMU_RINGS 1 /* number of rings (1..4) */
#define XCHAL_MMU_RING_BITS 0 /* num of bits in RING field */
#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */
#endif /* _XTENSA_CORE_CONFIGURATION_H */

387
arch/xtensa/variants/s6000/include/variant/dmac.h
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@ -1,387 +0,0 @@
/*
* include/asm-xtensa/variant-s6000/dmac.h
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2006 Tensilica Inc.
* Copyright (C) 2008 Emlix GmbH <info@emlix.com>
* Authors: Fabian Godehardt <fg@emlix.com>
* Oskar Schirmer <oskar@scara.com>
* Daniel Gloeckner <dg@emlix.com>
*/
#ifndef __ASM_XTENSA_S6000_DMAC_H
#define __ASM_XTENSA_S6000_DMAC_H
#include <linux/io.h>
#include <variant/hardware.h>
/* DMA global */
#define S6_DMA_INTSTAT0 0x000
#define S6_DMA_INTSTAT1 0x004
#define S6_DMA_INTENABLE0 0x008
#define S6_DMA_INTENABLE1 0x00C
#define S6_DMA_INTRAW0 0x010
#define S6_DMA_INTRAW1 0x014
#define S6_DMA_INTCLEAR0 0x018
#define S6_DMA_INTCLEAR1 0x01C
#define S6_DMA_INTSET0 0x020
#define S6_DMA_INTSET1 0x024
#define S6_DMA_INT0_UNDER 0
#define S6_DMA_INT0_OVER 16
#define S6_DMA_INT1_CHANNEL 0
#define S6_DMA_INT1_MASTER 16
#define S6_DMA_INT1_MASTER_MASK 7
#define S6_DMA_TERMCNTIRQSTAT 0x028
#define S6_DMA_TERMCNTIRQCLR 0x02C
#define S6_DMA_TERMCNTIRQSET 0x030
#define S6_DMA_PENDCNTIRQSTAT 0x034
#define S6_DMA_PENDCNTIRQCLR 0x038
#define S6_DMA_PENDCNTIRQSET 0x03C
#define S6_DMA_LOWWMRKIRQSTAT 0x040
#define S6_DMA_LOWWMRKIRQCLR 0x044
#define S6_DMA_LOWWMRKIRQSET 0x048
#define S6_DMA_MASTERERRINFO 0x04C
#define S6_DMA_MASTERERR_CHAN(n) (4*(n))
#define S6_DMA_MASTERERR_CHAN_MASK 0xF
#define S6_DMA_DESCRFIFO0 0x050
#define S6_DMA_DESCRFIFO1 0x054
#define S6_DMA_DESCRFIFO2 0x058
#define S6_DMA_DESCRFIFO2_AUTODISABLE 24
#define S6_DMA_DESCRFIFO3 0x05C
#define S6_DMA_MASTER0START 0x060
#define S6_DMA_MASTER0END 0x064
#define S6_DMA_MASTER1START 0x068
#define S6_DMA_MASTER1END 0x06C
#define S6_DMA_NEXTFREE 0x070
#define S6_DMA_NEXTFREE_CHAN 0
#define S6_DMA_NEXTFREE_CHAN_MASK 0x1F
#define S6_DMA_NEXTFREE_ENA 16
#define S6_DMA_NEXTFREE_ENA_MASK ((1 << 16) - 1)
#define S6_DMA_DPORTCTRLGRP(p) ((p) * 4 + 0x074)
#define S6_DMA_DPORTCTRLGRP_FRAMEREP 0
#define S6_DMA_DPORTCTRLGRP_NRCHANS 1
#define S6_DMA_DPORTCTRLGRP_NRCHANS_1 0
#define S6_DMA_DPORTCTRLGRP_NRCHANS_3 1
#define S6_DMA_DPORTCTRLGRP_NRCHANS_4 2
#define S6_DMA_DPORTCTRLGRP_NRCHANS_2 3
#define S6_DMA_DPORTCTRLGRP_ENA 31
/* DMA per channel */
#define DMA_CHNL(dmac, n) ((dmac) + 0x1000 + (n) * 0x100)
#define DMA_INDEX_CHNL(addr) (((addr) >> 8) & 0xF)
#define DMA_MASK_DMAC(addr) ((addr) & 0xFFFF0000)
#define S6_DMA_CHNCTRL 0x000
#define S6_DMA_CHNCTRL_ENABLE 0
#define S6_DMA_CHNCTRL_PAUSE 1
#define S6_DMA_CHNCTRL_PRIO 2
#define S6_DMA_CHNCTRL_PRIO_MASK 3
#define S6_DMA_CHNCTRL_PERIPHXFER 4
#define S6_DMA_CHNCTRL_PERIPHENA 5
#define S6_DMA_CHNCTRL_SRCINC 6
#define S6_DMA_CHNCTRL_DSTINC 7
#define S6_DMA_CHNCTRL_BURSTLOG 8
#define S6_DMA_CHNCTRL_BURSTLOG_MASK 7
#define S6_DMA_CHNCTRL_DESCFIFODEPTH 12
#define S6_DMA_CHNCTRL_DESCFIFODEPTH_MASK 0x1F
#define S6_DMA_CHNCTRL_DESCFIFOFULL 17
#define S6_DMA_CHNCTRL_BWCONSEL 18
#define S6_DMA_CHNCTRL_BWCONENA 19
#define S6_DMA_CHNCTRL_PENDGCNTSTAT 20
#define S6_DMA_CHNCTRL_PENDGCNTSTAT_MASK 0x3F
#define S6_DMA_CHNCTRL_LOWWMARK 26
#define S6_DMA_CHNCTRL_LOWWMARK_MASK 0xF
#define S6_DMA_CHNCTRL_TSTAMP 30
#define S6_DMA_TERMCNTNB 0x004
#define S6_DMA_TERMCNTNB_MASK 0xFFFF
#define S6_DMA_TERMCNTTMO 0x008
#define S6_DMA_TERMCNTSTAT 0x00C
#define S6_DMA_TERMCNTSTAT_MASK 0xFF
#define S6_DMA_CMONCHUNK 0x010
#define S6_DMA_SRCSKIP 0x014
#define S6_DMA_DSTSKIP 0x018
#define S6_DMA_CUR_SRC 0x024
#define S6_DMA_CUR_DST 0x028
#define S6_DMA_TIMESTAMP 0x030
/* DMA channel lists */
#define S6_DPDMA_CHAN(stream, channel) (4 * (stream) + (channel))
#define S6_DPDMA_NB 16
#define S6_HIFDMA_GMACTX 0
#define S6_HIFDMA_GMACRX 1
#define S6_HIFDMA_I2S0 2
#define S6_HIFDMA_I2S1 3
#define S6_HIFDMA_EGIB 4
#define S6_HIFDMA_PCITX 5
#define S6_HIFDMA_PCIRX 6
#define S6_HIFDMA_NB 7
#define S6_NIDMA_NB 4
#define S6_LMSDMA_NB 12
/* controller access */
#define S6_DMAC_NB 4
#define S6_DMAC_INDEX(dmac) (((unsigned)(dmac) >> 18) % S6_DMAC_NB)
struct s6dmac_ctrl {
u32 dmac;
spinlock_t lock;
u8 chan_nb;
};
extern struct s6dmac_ctrl s6dmac_ctrl[S6_DMAC_NB];
/* DMA control, per channel */
static inline int s6dmac_fifo_full(u32 dmac, int chan)
{
return (readl(DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL)
& (1 << S6_DMA_CHNCTRL_DESCFIFOFULL)) && 1;
}
static inline int s6dmac_termcnt_irq(u32 dmac, int chan)
{
u32 m = 1 << chan;
int r = (readl(dmac + S6_DMA_TERMCNTIRQSTAT) & m) && 1;
if (r)
writel(m, dmac + S6_DMA_TERMCNTIRQCLR);
return r;
}
static inline int s6dmac_pendcnt_irq(u32 dmac, int chan)
{
u32 m = 1 << chan;
int r = (readl(dmac + S6_DMA_PENDCNTIRQSTAT) & m) && 1;
if (r)
writel(m, dmac + S6_DMA_PENDCNTIRQCLR);
return r;
}
static inline int s6dmac_lowwmark_irq(u32 dmac, int chan)
{
int r = (readl(dmac + S6_DMA_LOWWMRKIRQSTAT) & (1 << chan)) ? 1 : 0;
if (r)
writel(1 << chan, dmac + S6_DMA_LOWWMRKIRQCLR);
return r;
}
static inline u32 s6dmac_pending_count(u32 dmac, int chan)
{
return (readl(DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL)
>> S6_DMA_CHNCTRL_PENDGCNTSTAT)
& S6_DMA_CHNCTRL_PENDGCNTSTAT_MASK;
}
static inline void s6dmac_set_terminal_count(u32 dmac, int chan, u32 n)
{
n &= S6_DMA_TERMCNTNB_MASK;
n |= readl(DMA_CHNL(dmac, chan) + S6_DMA_TERMCNTNB)
& ~S6_DMA_TERMCNTNB_MASK;
writel(n, DMA_CHNL(dmac, chan) + S6_DMA_TERMCNTNB);
}
static inline u32 s6dmac_get_terminal_count(u32 dmac, int chan)
{
return (readl(DMA_CHNL(dmac, chan) + S6_DMA_TERMCNTNB))
& S6_DMA_TERMCNTNB_MASK;
}
static inline u32 s6dmac_timestamp(u32 dmac, int chan)
{
return readl(DMA_CHNL(dmac, chan) + S6_DMA_TIMESTAMP);
}
static inline u32 s6dmac_cur_src(u32 dmac, int chan)
{
return readl(DMA_CHNL(dmac, chan) + S6_DMA_CUR_SRC);
}
static inline u32 s6dmac_cur_dst(u32 dmac, int chan)
{
return readl(DMA_CHNL(dmac, chan) + S6_DMA_CUR_DST);
}
static inline void s6dmac_disable_chan(u32 dmac, int chan)
{
u32 ctrl;
writel(readl(DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL)
& ~(1 << S6_DMA_CHNCTRL_ENABLE),
DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL);
do
ctrl = readl(DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL);
while (ctrl & (1 << S6_DMA_CHNCTRL_ENABLE));
}
static inline void s6dmac_set_stride_skip(u32 dmac, int chan,
int comchunk, /* 0: disable scatter/gather */
int srcskip, int dstskip)
{
writel(comchunk, DMA_CHNL(dmac, chan) + S6_DMA_CMONCHUNK);
writel(srcskip, DMA_CHNL(dmac, chan) + S6_DMA_SRCSKIP);
writel(dstskip, DMA_CHNL(dmac, chan) + S6_DMA_DSTSKIP);
}
static inline void s6dmac_enable_chan(u32 dmac, int chan,
int prio, /* 0 (highest) .. 3 (lowest) */
int periphxfer, /* <0: disable p.req.line, 0..1: mode */
int srcinc, int dstinc, /* 0: dont increment src/dst address */
int comchunk, /* 0: disable scatter/gather */
int srcskip, int dstskip,
int burstsize, /* 4 for I2S, 7 for everything else */
int bandwidthconserve, /* <0: disable, 0..1: select */
int lowwmark, /* 0..15 */
int timestamp, /* 0: disable timestamp */
int enable) /* 0: disable for now */
{
writel(1, DMA_CHNL(dmac, chan) + S6_DMA_TERMCNTNB);
writel(0, DMA_CHNL(dmac, chan) + S6_DMA_TERMCNTTMO);
writel(lowwmark << S6_DMA_CHNCTRL_LOWWMARK,
DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL);
s6dmac_set_stride_skip(dmac, chan, comchunk, srcskip, dstskip);
writel(((enable ? 1 : 0) << S6_DMA_CHNCTRL_ENABLE) |
(prio << S6_DMA_CHNCTRL_PRIO) |
(((periphxfer > 0) ? 1 : 0) << S6_DMA_CHNCTRL_PERIPHXFER) |
(((periphxfer < 0) ? 0 : 1) << S6_DMA_CHNCTRL_PERIPHENA) |
((srcinc ? 1 : 0) << S6_DMA_CHNCTRL_SRCINC) |
((dstinc ? 1 : 0) << S6_DMA_CHNCTRL_DSTINC) |
(burstsize << S6_DMA_CHNCTRL_BURSTLOG) |
(((bandwidthconserve > 0) ? 1 : 0) << S6_DMA_CHNCTRL_BWCONSEL) |
(((bandwidthconserve < 0) ? 0 : 1) << S6_DMA_CHNCTRL_BWCONENA) |
(lowwmark << S6_DMA_CHNCTRL_LOWWMARK) |
((timestamp ? 1 : 0) << S6_DMA_CHNCTRL_TSTAMP),
DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL);
}
/* DMA control, per engine */
static inline unsigned _dmac_addr_index(u32 dmac)
{
unsigned i = S6_DMAC_INDEX(dmac);
if (s6dmac_ctrl[i].dmac != dmac)
BUG();
return i;
}
static inline void _s6dmac_disable_error_irqs(u32 dmac, u32 mask)
{
writel(mask, dmac + S6_DMA_TERMCNTIRQCLR);
writel(mask, dmac + S6_DMA_PENDCNTIRQCLR);
writel(mask, dmac + S6_DMA_LOWWMRKIRQCLR);
writel(readl(dmac + S6_DMA_INTENABLE0)
& ~((mask << S6_DMA_INT0_UNDER) | (mask << S6_DMA_INT0_OVER)),
dmac + S6_DMA_INTENABLE0);
writel(readl(dmac + S6_DMA_INTENABLE1) & ~(mask << S6_DMA_INT1_CHANNEL),
dmac + S6_DMA_INTENABLE1);
writel((mask << S6_DMA_INT0_UNDER) | (mask << S6_DMA_INT0_OVER),
dmac + S6_DMA_INTCLEAR0);
writel(mask << S6_DMA_INT1_CHANNEL, dmac + S6_DMA_INTCLEAR1);
}
/*
* request channel from specified engine
* with chan<0, accept any channel
* further parameters see s6dmac_enable_chan
* returns < 0 upon error, channel nb otherwise
*/
static inline int s6dmac_request_chan(u32 dmac, int chan,
int prio,
int periphxfer,
int srcinc, int dstinc,
int comchunk,
int srcskip, int dstskip,
int burstsize,
int bandwidthconserve,
int lowwmark,
int timestamp,
int enable)
{
int r = chan;
unsigned long flags;
spinlock_t *spinl = &s6dmac_ctrl[_dmac_addr_index(dmac)].lock;
spin_lock_irqsave(spinl, flags);
if (r < 0) {
r = (readl(dmac + S6_DMA_NEXTFREE) >> S6_DMA_NEXTFREE_CHAN)
& S6_DMA_NEXTFREE_CHAN_MASK;
}
if (r >= s6dmac_ctrl[_dmac_addr_index(dmac)].chan_nb) {
if (chan < 0)
r = -EBUSY;
else
r = -ENXIO;
} else if (((readl(dmac + S6_DMA_NEXTFREE) >> S6_DMA_NEXTFREE_ENA)
>> r) & 1) {
r = -EBUSY;
} else {
s6dmac_enable_chan(dmac, r, prio, periphxfer,
srcinc, dstinc, comchunk, srcskip, dstskip, burstsize,
bandwidthconserve, lowwmark, timestamp, enable);
}
spin_unlock_irqrestore(spinl, flags);
return r;
}
static inline void s6dmac_put_fifo(u32 dmac, int chan,
u32 src, u32 dst, u32 size)
{
unsigned long flags;
spinlock_t *spinl = &s6dmac_ctrl[_dmac_addr_index(dmac)].lock;
spin_lock_irqsave(spinl, flags);
writel(src, dmac + S6_DMA_DESCRFIFO0);
writel(dst, dmac + S6_DMA_DESCRFIFO1);
writel(size, dmac + S6_DMA_DESCRFIFO2);
writel(chan, dmac + S6_DMA_DESCRFIFO3);
spin_unlock_irqrestore(spinl, flags);
}
static inline u32 s6dmac_channel_enabled(u32 dmac, int chan)
{
return readl(DMA_CHNL(dmac, chan) + S6_DMA_CHNCTRL) &
(1 << S6_DMA_CHNCTRL_ENABLE);
}
/*
* group 1-4 data port channels
* with port=0..3, nrch=1-4 channels,
* frrep=0/1 (dis- or enable frame repeat)
*/
static inline void s6dmac_dp_setup_group(u32 dmac, int port,
int nrch, int frrep)
{
static const u8 mask[4] = {0, 3, 1, 2};
BUG_ON(dmac != S6_REG_DPDMA);
if ((port < 0) || (port > 3) || (nrch < 1) || (nrch > 4))
return;
writel((mask[nrch - 1] << S6_DMA_DPORTCTRLGRP_NRCHANS)
| ((frrep ? 1 : 0) << S6_DMA_DPORTCTRLGRP_FRAMEREP),
dmac + S6_DMA_DPORTCTRLGRP(port));
}
static inline void s6dmac_dp_switch_group(u32 dmac, int port, int enable)
{
u32 tmp;
BUG_ON(dmac != S6_REG_DPDMA);
tmp = readl(dmac + S6_DMA_DPORTCTRLGRP(port));
if (enable)
tmp |= (1 << S6_DMA_DPORTCTRLGRP_ENA);
else
tmp &= ~(1 << S6_DMA_DPORTCTRLGRP_ENA);
writel(tmp, dmac + S6_DMA_DPORTCTRLGRP(port));
}
extern void s6dmac_put_fifo_cache(u32 dmac, int chan,
u32 src, u32 dst, u32 size);
extern void s6dmac_disable_error_irqs(u32 dmac, u32 mask);
extern u32 s6dmac_int_sources(u32 dmac, u32 channel);
extern void s6dmac_release_chan(u32 dmac, int chan);
#endif /* __ASM_XTENSA_S6000_DMAC_H */

6
arch/xtensa/variants/s6000/include/variant/gpio.h
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@ -1,6 +0,0 @@
#ifndef _XTENSA_VARIANT_S6000_GPIO_H
#define _XTENSA_VARIANT_S6000_GPIO_H
extern int s6_gpio_init(u32 afsel);
#endif /* _XTENSA_VARIANT_S6000_GPIO_H */

259
arch/xtensa/variants/s6000/include/variant/hardware.h
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#ifndef __XTENSA_S6000_HARDWARE_H
#define __XTENSA_S6000_HARDWARE_H
#define S6_SCLK 1843200
#define S6_MEM_REG 0x20000000
#define S6_MEM_EFI 0x33F00000
#define S6_MEM_PCIE_DATARAM1 0x34000000
#define S6_MEM_XLMI 0x37F80000
#define S6_MEM_PIF_DATARAM1 0x37FFC000
#define S6_MEM_GMAC 0x38000000
#define S6_MEM_I2S 0x3A000000
#define S6_MEM_EGIB 0x3C000000
#define S6_MEM_PCIE_CFG 0x3E000000
#define S6_MEM_PIF_DATARAM 0x3FFE0000
#define S6_MEM_XLMI_DATARAM 0x3FFF0000
#define S6_MEM_DDR 0x40000000
#define S6_MEM_PCIE_APER 0xC0000000
#define S6_MEM_AUX 0xF0000000
/* Device addresses */
#define S6_REG_SCB S6_MEM_REG
#define S6_REG_NB (S6_REG_SCB + 0x10000)
#define S6_REG_LMSDMA (S6_REG_SCB + 0x20000)
#define S6_REG_NI (S6_REG_SCB + 0x30000)
#define S6_REG_NIDMA (S6_REG_SCB + 0x40000)
#define S6_REG_NS (S6_REG_SCB + 0x50000)
#define S6_REG_DDR (S6_REG_SCB + 0x60000)
#define S6_REG_GREG1 (S6_REG_SCB + 0x70000)
#define S6_REG_DP (S6_REG_SCB + 0x80000)
#define S6_REG_DPDMA (S6_REG_SCB + 0x90000)
#define S6_REG_EGIB (S6_REG_SCB + 0xA0000)
#define S6_REG_PCIE (S6_REG_SCB + 0xB0000)
#define S6_REG_I2S (S6_REG_SCB + 0xC0000)
#define S6_REG_GMAC (S6_REG_SCB + 0xD0000)
#define S6_REG_HIFDMA (S6_REG_SCB + 0xE0000)
#define S6_REG_GREG2 (S6_REG_SCB + 0xF0000)
#define S6_REG_APB S6_REG_SCB
#define S6_REG_UART (S6_REG_APB + 0x0000)
#define S6_REG_INTC (S6_REG_APB + 0x2000)
#define S6_REG_SPI (S6_REG_APB + 0x3000)
#define S6_REG_I2C (S6_REG_APB + 0x4000)
#define S6_REG_GPIO (S6_REG_APB + 0x8000)
/* Global register block */
#define S6_GREG1_PLL_LOCKCLEAR 0x000
#define S6_GREG1_PLL_LOCK_SYS 0
#define S6_GREG1_PLL_LOCK_IO 1
#define S6_GREG1_PLL_LOCK_AIM 2
#define S6_GREG1_PLL_LOCK_DP0 3
#define S6_GREG1_PLL_LOCK_DP2 4
#define S6_GREG1_PLL_LOCK_DDR 5
#define S6_GREG1_PLL_LOCKSTAT 0x004
#define S6_GREG1_PLL_LOCKSTAT_CURLOCK 0
#define S6_GREG1_PLL_LOCKSTAT_EVERUNLCK 8
#define S6_GREG1_PLLSEL 0x010
#define S6_GREG1_PLLSEL_AIM 0
#define S6_GREG1_PLLSEL_AIM_DDR2 0
#define S6_GREG1_PLLSEL_AIM_300MHZ 1
#define S6_GREG1_PLLSEL_AIM_240MHZ 2
#define S6_GREG1_PLLSEL_AIM_200MHZ 3
#define S6_GREG1_PLLSEL_AIM_150MHZ 4
#define S6_GREG1_PLLSEL_AIM_120MHZ 5
#define S6_GREG1_PLLSEL_AIM_40MHZ 6
#define S6_GREG1_PLLSEL_AIM_PLLAIMREF 7
#define S6_GREG1_PLLSEL_AIM_MASK 7
#define S6_GREG1_PLLSEL_DDR 8
#define S6_GREG1_PLLSEL_DDR_HS 0
#define S6_GREG1_PLLSEL_DDR_333MHZ 1
#define S6_GREG1_PLLSEL_DDR_250MHZ 2
#define S6_GREG1_PLLSEL_DDR_200MHZ 3
#define S6_GREG1_PLLSEL_DDR_167MHZ 4
#define S6_GREG1_PLLSEL_DDR_100MHZ 5
#define S6_GREG1_PLLSEL_DDR_33MHZ 6
#define S6_GREG1_PLLSEL_DDR_PLLIOREF 7
#define S6_GREG1_PLLSEL_DDR_MASK 7
#define S6_GREG1_PLLSEL_GMAC 16
#define S6_GREG1_PLLSEL_GMAC_125MHZ 0
#define S6_GREG1_PLLSEL_GMAC_25MHZ 1
#define S6_GREG1_PLLSEL_GMAC_2500KHZ 2
#define S6_GREG1_PLLSEL_GMAC_EXTERN 3
#define S6_GREG1_PLLSEL_GMAC_MASK 3
#define S6_GREG1_PLLSEL_GMII 18
#define S6_GREG1_PLLSEL_GMII_111MHZ 0
#define S6_GREG1_PLLSEL_GMII_IOREF 1
#define S6_GREG1_PLLSEL_GMII_NONE 2
#define S6_GREG1_PLLSEL_GMII_125MHZ 3
#define S6_GREG1_PLLSEL_GMII_MASK 3
#define S6_GREG1_SYSUNLOCKCNT 0x020
#define S6_GREG1_IOUNLOCKCNT 0x024
#define S6_GREG1_AIMUNLOCKCNT 0x028
#define S6_GREG1_DP0UNLOCKCNT 0x02C
#define S6_GREG1_DP2UNLOCKCNT 0x030
#define S6_GREG1_DDRUNLOCKCNT 0x034
#define S6_GREG1_CLKBAL0 0x040
#define S6_GREG1_CLKBAL0_LSGB 0
#define S6_GREG1_CLKBAL0_LSPX 8
#define S6_GREG1_CLKBAL0_MEMDO 16
#define S6_GREG1_CLKBAL0_HSXT1 24
#define S6_GREG1_CLKBAL1 0x044
#define S6_GREG1_CLKBAL1_HSISEF 0
#define S6_GREG1_CLKBAL1_HSNI 8
#define S6_GREG1_CLKBAL1_HSNS 16
#define S6_GREG1_CLKBAL1_HSISEFCFG 24
#define S6_GREG1_CLKBAL2 0x048
#define S6_GREG1_CLKBAL2_LSNB 0
#define S6_GREG1_CLKBAL2_LSSB 8
#define S6_GREG1_CLKBAL2_LSREST 24
#define S6_GREG1_CLKBAL3 0x04C
#define S6_GREG1_CLKBAL3_ISEFXAD 0
#define S6_GREG1_CLKBAL3_ISEFLMS 8
#define S6_GREG1_CLKBAL3_ISEFISEF 16
#define S6_GREG1_CLKBAL3_DDRDD 24
#define S6_GREG1_CLKBAL4 0x050
#define S6_GREG1_CLKBAL4_DDRDP 0
#define S6_GREG1_CLKBAL4_DDRDO 8
#define S6_GREG1_CLKBAL4_DDRNB 16
#define S6_GREG1_CLKBAL4_DDRLMS 24
#define S6_GREG1_BLOCKENA 0x100
#define S6_GREG1_BLOCK_DDR 0
#define S6_GREG1_BLOCK_DP 1
#define S6_GREG1_BLOCK_NSNI 2
#define S6_GREG1_BLOCK_PCIE 3
#define S6_GREG1_BLOCK_GMAC 4
#define S6_GREG1_BLOCK_I2S 5
#define S6_GREG1_BLOCK_EGIB 6
#define S6_GREG1_BLOCK_SB 7
#define S6_GREG1_BLOCK_XT1 8
#define S6_GREG1_CLKGATE 0x104
#define S6_GREG1_BGATE_AIMNORTH 9
#define S6_GREG1_BGATE_AIMEAST 10
#define S6_GREG1_BGATE_AIMWEST 11
#define S6_GREG1_BGATE_AIMSOUTH 12
#define S6_GREG1_CHIPRES 0x108
#define S6_GREG1_CHIPRES_SOFTRES 0
#define S6_GREG1_CHIPRES_LOSTLOCK 1
#define S6_GREG1_RESETCAUSE 0x10C
#define S6_GREG1_RESETCAUSE_RESETN 0
#define S6_GREG1_RESETCAUSE_GLOBAL 1
#define S6_GREG1_RESETCAUSE_WDOGTIMER 2
#define S6_GREG1_RESETCAUSE_SWCHIP 3
#define S6_GREG1_RESETCAUSE_PLLSYSLOSS 4
#define S6_GREG1_RESETCAUSE_PCIE 5
#define S6_GREG1_RESETCAUSE_CREATEDGLOB 6
#define S6_GREG1_REFCLOCKCNT 0x110
#define S6_GREG1_RESETTIMER 0x114
#define S6_GREG1_NMITIMER 0x118
#define S6_GREG1_GLOBAL_TIMER 0x11C
#define S6_GREG1_TIMER0 0x180
#define S6_GREG1_TIMER1 0x184
#define S6_GREG1_UARTCLOCKSEL 0x204
#define S6_GREG1_CHIPVERSPACKG 0x208
#define S6_GREG1_CHIPVERSPACKG_CHIPVID 0
#define S6_GREG1_CHIPVERSPACKG_PACKSEL 8
#define S6_GREG1_ONDIETERMCTRL 0x20C
#define S6_GREG1_ONDIETERMCTRL_WEST 0
#define S6_GREG1_ONDIETERMCTRL_NORTH 2
#define S6_GREG1_ONDIETERMCTRL_EAST 4
#define S6_GREG1_ONDIETERMCTRL_SOUTH 6
#define S6_GREG1_ONDIETERMCTRL_NONE 0
#define S6_GREG1_ONDIETERMCTRL_75OHM 2
#define S6_GREG1_ONDIETERMCTRL_MASK 3
#define S6_GREG1_BOOT_CFG0 0x210
#define S6_GREG1_BOOT_CFG0_AIMSTRONG 1
#define S6_GREG1_BOOT_CFG0_MINIBOOTDL 2
#define S6_GREG1_BOOT_CFG0_OCDGPIO8SET 5
#define S6_GREG1_BOOT_CFG0_OCDGPIOENA 6
#define S6_GREG1_BOOT_CFG0_DOWNSTREAM 7
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV 8
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV_300MHZ 1
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV_240MHZ 2
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV_200MHZ 3
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV_150MHZ 4
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV_120MHZ 5
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV_40MHZ 6
#define S6_GREG1_BOOT_CFG0_PLLSYSDIV_MASK 7
#define S6_GREG1_BOOT_CFG0_BALHSLMS 12
#define S6_GREG1_BOOT_CFG0_BALHSNB 18
#define S6_GREG1_BOOT_CFG0_BALHSXAD 24
#define S6_GREG1_BOOT_CFG1 0x214
#define S6_GREG1_BOOT_CFG1_PCIE1LANE 1
#define S6_GREG1_BOOT_CFG1_MPLLPRESCALE 2
#define S6_GREG1_BOOT_CFG1_MPLLNCY 4
#define S6_GREG1_BOOT_CFG1_MPLLNCY5 9
#define S6_GREG1_BOOT_CFG1_BALHSREST 14
#define S6_GREG1_BOOT_CFG1_BALHSPSMEMS 20
#define S6_GREG1_BOOT_CFG1_BALLSGI 26
#define S6_GREG1_BOOT_CFG2 0x218
#define S6_GREG1_BOOT_CFG2_PEID 0
#define S6_GREG1_BOOT_CFG3 0x21C
#define S6_GREG1_DRAMBUSYHOLDOF 0x220
#define S6_GREG1_DRAMBUSYHOLDOF_XT0 0
#define S6_GREG1_DRAMBUSYHOLDOF_XT1 4
#define S6_GREG1_DRAMBUSYHOLDOF_XT_MASK 7
#define S6_GREG1_PCIEBAR1SIZE 0x224
#define S6_GREG1_PCIEBAR2SIZE 0x228
#define S6_GREG1_PCIEVENDOR 0x22C
#define S6_GREG1_PCIEDEVICE 0x230
#define S6_GREG1_PCIEREV 0x234
#define S6_GREG1_PCIECLASS 0x238
#define S6_GREG1_XT1DCACHEMISS 0x240
#define S6_GREG1_XT1ICACHEMISS 0x244
#define S6_GREG1_HWSEMAPHORE(n) (0x400 + 4 * (n))
#define S6_GREG1_HWSEMAPHORE_NB 16
/* peripheral interrupt numbers */
#define S6_INTC_GPIO(n) (n) /* 0..3 */
#define S6_INTC_I2C 4
#define S6_INTC_SPI 5
#define S6_INTC_NB_ERR 6
#define S6_INTC_DMA_LMSERR 7
#define S6_INTC_DMA_LMSLOWWMRK(n) (8 + (n)) /* 0..11 */
#define S6_INTC_DMA_LMSPENDCNT(n) (20 + (n)) /* 0..11 */
#define S6_INTC_DMA HOSTLOWWMRK(n) (32 + (n)) /* 0..6 */
#define S6_INTC_DMA_HOSTPENDCNT(n) (39 + (n)) /* 0..6 */
#define S6_INTC_DMA_HOSTERR 46
#define S6_INTC_UART(n) (47 + (n)) /* 0..1 */
#define S6_INTC_XAD 49
#define S6_INTC_NI_ERR 50
#define S6_INTC_NI_INFIFOFULL 51
#define S6_INTC_DMA_NIERR 52
#define S6_INTC_DMA_NILOWWMRK(n) (53 + (n)) /* 0..3 */
#define S6_INTC_DMA_NIPENDCNT(n) (57 + (n)) /* 0..3 */
#define S6_INTC_DDR 61
#define S6_INTC_NS_ERR 62
#define S6_INTC_EFI_CFGERR 63
#define S6_INTC_EFI_ISEFTEST 64
#define S6_INTC_EFI_WRITEERR 65
#define S6_INTC_NMI_TIMER 66
#define S6_INTC_PLLLOCK_SYS 67
#define S6_INTC_PLLLOCK_IO 68
#define S6_INTC_PLLLOCK_AIM 69
#define S6_INTC_PLLLOCK_DP0 70
#define S6_INTC_PLLLOCK_DP2 71
#define S6_INTC_I2S_ERR 72
#define S6_INTC_GMAC_STAT 73
#define S6_INTC_GMAC_ERR 74
#define S6_INTC_GIB_ERR 75
#define S6_INTC_PCIE_ERR 76
#define S6_INTC_PCIE_MSI(n) (77 + (n)) /* 0..3 */
#define S6_INTC_PCIE_INTA 81
#define S6_INTC_PCIE_INTB 82
#define S6_INTC_PCIE_INTC 83
#define S6_INTC_PCIE_INTD 84
#define S6_INTC_SW(n) (85 + (n)) /* 0..9 */
#define S6_INTC_SW_ENABLE(n) (85 + 256 + (n))
#define S6_INTC_DMA_DP_ERR 95
#define S6_INTC_DMA_DPLOWWMRK(n) (96 + (n)) /* 0..3 */
#define S6_INTC_DMA_DPPENDCNT(n) (100 + (n)) /* 0..3 */
#define S6_INTC_DMA_DPTERMCNT(n) (104 + (n)) /* 0..3 */
#define S6_INTC_TIMER0 108
#define S6_INTC_TIMER1 109
#define S6_INTC_DMA_HOSTTERMCNT(n) (110 + (n)) /* 0..6 */
#endif /* __XTENSA_S6000_HARDWARE_H */

8
arch/xtensa/variants/s6000/include/variant/irq.h
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#ifndef _XTENSA_S6000_IRQ_H
#define _XTENSA_S6000_IRQ_H
#define VARIANT_NR_IRQS 8 /* GPIO interrupts */
extern void variant_irq_enable(unsigned int irq);
#endif /* __XTENSA_S6000_IRQ_H */

304
arch/xtensa/variants/s6000/include/variant/tie-asm.h
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/*
* This header file contains assembly-language definitions (assembly
* macros, etc.) for this specific Xtensa processor's TIE extensions
* and options. It is customized to this Xtensa processor configuration.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1999-2008 Tensilica Inc.
*/
#ifndef _XTENSA_CORE_TIE_ASM_H
#define _XTENSA_CORE_TIE_ASM_H
/* Selection parameter values for save-area save/restore macros: */
/* Option vs. TIE: */
#define XTHAL_SAS_TIE 0x0001 /* custom extension or coprocessor */
#define XTHAL_SAS_OPT 0x0002 /* optional (and not a coprocessor) */
/* Whether used automatically by compiler: */
#define XTHAL_SAS_NOCC 0x0004 /* not used by compiler w/o special opts/code */
#define XTHAL_SAS_CC 0x0008 /* used by compiler without special opts/code */
/* ABI handling across function calls: */
#define XTHAL_SAS_CALR 0x0010 /* caller-saved */
#define XTHAL_SAS_CALE 0x0020 /* callee-saved */
#define XTHAL_SAS_GLOB 0x0040 /* global across function calls (in thread) */
/* Misc */
#define XTHAL_SAS_ALL 0xFFFF /* include all default NCP contents */
/* Macro to save all non-coprocessor (extra) custom TIE and optional state
* (not including zero-overhead loop registers).
* Save area ptr (clobbered): ptr (16 byte aligned)
* Scratch regs (clobbered): at1..at4 (only first XCHAL_NCP_NUM_ATMPS needed)
*/
.macro xchal_ncp_store ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
xchal_sa_start \continue, \ofs
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~\select
xchal_sa_align \ptr, 0, 1024-4, 4, 4
rsr \at1, BR // boolean option
s32i \at1, \ptr, .Lxchal_ofs_ + 0
.set .Lxchal_ofs_, .Lxchal_ofs_ + 4
.endif
.endm // xchal_ncp_store
/* Macro to save all non-coprocessor (extra) custom TIE and optional state
* (not including zero-overhead loop registers).
* Save area ptr (clobbered): ptr (16 byte aligned)
* Scratch regs (clobbered): at1..at4 (only first XCHAL_NCP_NUM_ATMPS needed)
*/
.macro xchal_ncp_load ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
xchal_sa_start \continue, \ofs
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~\select
xchal_sa_align \ptr, 0, 1024-4, 4, 4
l32i \at1, \ptr, .Lxchal_ofs_ + 0
wsr \at1, BR // boolean option
.set .Lxchal_ofs_, .Lxchal_ofs_ + 4
.endif
.endm // xchal_ncp_load
#define XCHAL_NCP_NUM_ATMPS 1
/* Macro to save the state of TIE coprocessor FPU.
* Save area ptr (clobbered): ptr (16 byte aligned)
* Scratch regs (clobbered): at1..at4 (only first XCHAL_CP0_NUM_ATMPS needed)
*/
#define xchal_cp_FPU_store xchal_cp0_store
/* #define xchal_cp_FPU_store_a2 xchal_cp0_store a2 a3 a4 a5 a6 */
.macro xchal_cp0_store ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
xchal_sa_start \continue, \ofs
.ifeq (XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~\select
xchal_sa_align \ptr, 0, 0, 1, 16
rur232 \at1 // FCR
s32i \at1, \ptr, 0
rur233 \at1 // FSR
s32i \at1, \ptr, 4
SSI f0, \ptr, 8
SSI f1, \ptr, 12
SSI f2, \ptr, 16
SSI f3, \ptr, 20
SSI f4, \ptr, 24
SSI f5, \ptr, 28
SSI f6, \ptr, 32
SSI f7, \ptr, 36
SSI f8, \ptr, 40
SSI f9, \ptr, 44
SSI f10, \ptr, 48
SSI f11, \ptr, 52
SSI f12, \ptr, 56
SSI f13, \ptr, 60
SSI f14, \ptr, 64
SSI f15, \ptr, 68
.set .Lxchal_ofs_, .Lxchal_ofs_ + 72
.endif
.endm // xchal_cp0_store
/* Macro to restore the state of TIE coprocessor FPU.
* Save area ptr (clobbered): ptr (16 byte aligned)
* Scratch regs (clobbered): at1..at4 (only first XCHAL_CP0_NUM_ATMPS needed)
*/
#define xchal_cp_FPU_load xchal_cp0_load
/* #define xchal_cp_FPU_load_a2 xchal_cp0_load a2 a3 a4 a5 a6 */
.macro xchal_cp0_load ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
xchal_sa_start \continue, \ofs
.ifeq (XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~\select
xchal_sa_align \ptr, 0, 0, 1, 16
l32i \at1, \ptr, 0
wur232 \at1 // FCR
l32i \at1, \ptr, 4
wur233 \at1 // FSR
LSI f0, \ptr, 8
LSI f1, \ptr, 12
LSI f2, \ptr, 16
LSI f3, \ptr, 20
LSI f4, \ptr, 24
LSI f5, \ptr, 28
LSI f6, \ptr, 32
LSI f7, \ptr, 36
LSI f8, \ptr, 40
LSI f9, \ptr, 44
LSI f10, \ptr, 48
LSI f11, \ptr, 52
LSI f12, \ptr, 56
LSI f13, \ptr, 60
LSI f14, \ptr, 64
LSI f15, \ptr, 68
.set .Lxchal_ofs_, .Lxchal_ofs_ + 72
.endif
.endm // xchal_cp0_load
#define XCHAL_CP0_NUM_ATMPS 1
/* Macro to save the state of TIE coprocessor XAD.
* Save area ptr (clobbered): ptr (16 byte aligned)
* Scratch regs (clobbered): at1..at4 (only first XCHAL_CP6_NUM_ATMPS needed)
*/
#define xchal_cp_XAD_store xchal_cp6_store
/* #define xchal_cp_XAD_store_a2 xchal_cp6_store a2 a3 a4 a5 a6 */
.macro xchal_cp6_store ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
xchal_sa_start \continue, \ofs
.ifeq (XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~\select
xchal_sa_align \ptr, 0, 0, 1, 16
rur0 \at1 // LDCBHI
s32i \at1, \ptr, 0
rur1 \at1 // LDCBLO
s32i \at1, \ptr, 4
rur2 \at1 // STCBHI
s32i \at1, \ptr, 8
rur3 \at1 // STCBLO
s32i \at1, \ptr, 12
rur8 \at1 // LDBRBASE
s32i \at1, \ptr, 16
rur9 \at1 // LDBROFF
s32i \at1, \ptr, 20
rur10 \at1 // LDBRINC
s32i \at1, \ptr, 24
rur11 \at1 // STBRBASE
s32i \at1, \ptr, 28
rur12 \at1 // STBROFF
s32i \at1, \ptr, 32
rur13 \at1 // STBRINC
s32i \at1, \ptr, 36
rur24 \at1 // SCRATCH0
s32i \at1, \ptr, 40
rur25 \at1 // SCRATCH1
s32i \at1, \ptr, 44
rur26 \at1 // SCRATCH2
s32i \at1, \ptr, 48
rur27 \at1 // SCRATCH3
s32i \at1, \ptr, 52
WRAS128I wra0, \ptr, 64
WRAS128I wra1, \ptr, 80
WRAS128I wra2, \ptr, 96
WRAS128I wra3, \ptr, 112
WRAS128I wra4, \ptr, 128
WRAS128I wra5, \ptr, 144
WRAS128I wra6, \ptr, 160
WRAS128I wra7, \ptr, 176
WRAS128I wra8, \ptr, 192
WRAS128I wra9, \ptr, 208
WRAS128I wra10, \ptr, 224
WRAS128I wra11, \ptr, 240
WRAS128I wra12, \ptr, 256
WRAS128I wra13, \ptr, 272
WRAS128I wra14, \ptr, 288
WRAS128I wra15, \ptr, 304
WRBS128I wrb0, \ptr, 320
WRBS128I wrb1, \ptr, 336
WRBS128I wrb2, \ptr, 352
WRBS128I wrb3, \ptr, 368
WRBS128I wrb4, \ptr, 384
WRBS128I wrb5, \ptr, 400
WRBS128I wrb6, \ptr, 416
WRBS128I wrb7, \ptr, 432
WRBS128I wrb8, \ptr, 448
WRBS128I wrb9, \ptr, 464
WRBS128I wrb10, \ptr, 480
WRBS128I wrb11, \ptr, 496
WRBS128I wrb12, \ptr, 512
WRBS128I wrb13, \ptr, 528
WRBS128I wrb14, \ptr, 544
WRBS128I wrb15, \ptr, 560
.set .Lxchal_ofs_, .Lxchal_ofs_ + 576
.endif
.endm // xchal_cp6_store
/* Macro to restore the state of TIE coprocessor XAD.
* Save area ptr (clobbered): ptr (16 byte aligned)
* Scratch regs (clobbered): at1..at4 (only first XCHAL_CP6_NUM_ATMPS needed)
*/
#define xchal_cp_XAD_load xchal_cp6_load
/* #define xchal_cp_XAD_load_a2 xchal_cp6_load a2 a3 a4 a5 a6 */
.macro xchal_cp6_load ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
xchal_sa_start \continue, \ofs
.ifeq (XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~\select
xchal_sa_align \ptr, 0, 0, 1, 16
l32i \at1, \ptr, 0
wur0 \at1 // LDCBHI
l32i \at1, \ptr, 4
wur1 \at1 // LDCBLO
l32i \at1, \ptr, 8
wur2 \at1 // STCBHI
l32i \at1, \ptr, 12
wur3 \at1 // STCBLO
l32i \at1, \ptr, 16
wur8 \at1 // LDBRBASE
l32i \at1, \ptr, 20
wur9 \at1 // LDBROFF
l32i \at1, \ptr, 24
wur10 \at1 // LDBRINC
l32i \at1, \ptr, 28
wur11 \at1 // STBRBASE
l32i \at1, \ptr, 32
wur12 \at1 // STBROFF
l32i \at1, \ptr, 36
wur13 \at1 // STBRINC
l32i \at1, \ptr, 40
wur24 \at1 // SCRATCH0
l32i \at1, \ptr, 44
wur25 \at1 // SCRATCH1
l32i \at1, \ptr, 48
wur26 \at1 // SCRATCH2
l32i \at1, \ptr, 52
wur27 \at1 // SCRATCH3
WRBL128I wrb0, \ptr, 320
WRBL128I wrb1, \ptr, 336
WRBL128I wrb2, \ptr, 352
WRBL128I wrb3, \ptr, 368
WRBL128I wrb4, \ptr, 384
WRBL128I wrb5, \ptr, 400
WRBL128I wrb6, \ptr, 416
WRBL128I wrb7, \ptr, 432
WRBL128I wrb8, \ptr, 448
WRBL128I wrb9, \ptr, 464
WRBL128I wrb10, \ptr, 480
WRBL128I wrb11, \ptr, 496
WRBL128I wrb12, \ptr, 512
WRBL128I wrb13, \ptr, 528
WRBL128I wrb14, \ptr, 544
WRBL128I wrb15, \ptr, 560
WRAL128I wra0, \ptr, 64
WRAL128I wra1, \ptr, 80
WRAL128I wra2, \ptr, 96
WRAL128I wra3, \ptr, 112
WRAL128I wra4, \ptr, 128
WRAL128I wra5, \ptr, 144
WRAL128I wra6, \ptr, 160
WRAL128I wra7, \ptr, 176
WRAL128I wra8, \ptr, 192
WRAL128I wra9, \ptr, 208
WRAL128I wra10, \ptr, 224
WRAL128I wra11, \ptr, 240
WRAL128I wra12, \ptr, 256
WRAL128I wra13, \ptr, 272
WRAL128I wra14, \ptr, 288
WRAL128I wra15, \ptr, 304
.set .Lxchal_ofs_, .Lxchal_ofs_ + 576
.endif
.endm // xchal_cp6_load
#define XCHAL_CP6_NUM_ATMPS 1
#define XCHAL_SA_NUM_ATMPS 1
/* Empty macros for unconfigured coprocessors: */
.macro xchal_cp1_store p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp1_load p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp2_store p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp2_load p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp3_store p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp3_load p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp4_store p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp4_load p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp5_store p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp5_load p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp7_store p a b c d continue=0 ofs=-1 select=-1 ; .endm
.macro xchal_cp7_load p a b c d continue=0 ofs=-1 select=-1 ; .endm
#endif /*_XTENSA_CORE_TIE_ASM_H*/

191
arch/xtensa/variants/s6000/include/variant/tie.h
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@ -1,191 +0,0 @@
/*
* This header file describes this specific Xtensa processor's TIE extensions
* that extend basic Xtensa core functionality. It is customized to this
* Xtensa processor configuration.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1999-2008 Tensilica Inc.
*/
#ifndef _XTENSA_CORE_TIE_H
#define _XTENSA_CORE_TIE_H
#define XCHAL_CP_NUM 2 /* number of coprocessors */
#define XCHAL_CP_MAX 7 /* max CP ID + 1 (0 if none) */
#define XCHAL_CP_MASK 0x41 /* bitmask of all CPs by ID */
#define XCHAL_CP_PORT_MASK 0x00 /* bitmask of only port CPs */
/* Basic parameters of each coprocessor: */
#define XCHAL_CP0_NAME "FPU"
#define XCHAL_CP0_IDENT FPU
#define XCHAL_CP0_SA_SIZE 72 /* size of state save area */
#define XCHAL_CP0_SA_ALIGN 4 /* min alignment of save area */
#define XCHAL_CP_ID_FPU 0 /* coprocessor ID (0..7) */
#define XCHAL_CP6_NAME "XAD"
#define XCHAL_CP6_IDENT XAD
#define XCHAL_CP6_SA_SIZE 576 /* size of state save area */
#define XCHAL_CP6_SA_ALIGN 16 /* min alignment of save area */
#define XCHAL_CP_ID_XAD 6 /* coprocessor ID (0..7) */
/* Filler info for unassigned coprocessors, to simplify arrays etc: */
#define XCHAL_CP1_SA_SIZE 0
#define XCHAL_CP1_SA_ALIGN 1
#define XCHAL_CP2_SA_SIZE 0
#define XCHAL_CP2_SA_ALIGN 1
#define XCHAL_CP3_SA_SIZE 0
#define XCHAL_CP3_SA_ALIGN 1
#define XCHAL_CP4_SA_SIZE 0
#define XCHAL_CP4_SA_ALIGN 1
#define XCHAL_CP5_SA_SIZE 0
#define XCHAL_CP5_SA_ALIGN 1
#define XCHAL_CP7_SA_SIZE 0
#define XCHAL_CP7_SA_ALIGN 1
/* Save area for non-coprocessor optional and custom (TIE) state: */
#define XCHAL_NCP_SA_SIZE 4
#define XCHAL_NCP_SA_ALIGN 4
/* Total save area for optional and custom state (NCP + CPn): */
#define XCHAL_TOTAL_SA_SIZE 672 /* with 16-byte align padding */
#define XCHAL_TOTAL_SA_ALIGN 16 /* actual minimum alignment */
/*
* Detailed contents of save areas.
* NOTE: caller must define the XCHAL_SA_REG macro (not defined here)
* before expanding the XCHAL_xxx_SA_LIST() macros.
*
* XCHAL_SA_REG(s,ccused,abikind,kind,opt,name,galign,align,asize,
* dbnum,base,regnum,bitsz,gapsz,reset,x...)
*
* s = passed from XCHAL_*_LIST(s), eg. to select how to expand
* ccused = set if used by compiler without special options or code
* abikind = 0 (caller-saved), 1 (callee-saved), or 2 (thread-global)
* kind = 0 (special reg), 1 (TIE user reg), or 2 (TIE regfile reg)
* opt = 0 (custom TIE extension or coprocessor), or 1 (optional reg)
* name = lowercase reg name (no quotes)
* galign = group byte alignment (power of 2) (galign >= align)
* align = register byte alignment (power of 2)
* asize = allocated size in bytes (asize*8 == bitsz + gapsz + padsz)
* (not including any pad bytes required to galign this or next reg)
* dbnum = unique target number f/debug (see <xtensa-libdb-macros.h>)
* base = reg shortname w/o index (or sr=special, ur=TIE user reg)
* regnum = reg index in regfile, or special/TIE-user reg number
* bitsz = number of significant bits (regfile width, or ur/sr mask bits)
* gapsz = intervening bits, if bitsz bits not stored contiguously
* (padsz = pad bits at end [TIE regfile] or at msbits [ur,sr] of asize)
* reset = register reset value (or 0 if undefined at reset)
* x = reserved for future use (0 until then)
*
* To filter out certain registers, e.g. to expand only the non-global
* registers used by the compiler, you can do something like this:
*
* #define XCHAL_SA_REG(s,ccused,p...) SELCC##ccused(p)
* #define SELCC0(p...)
* #define SELCC1(abikind,p...) SELAK##abikind(p)
* #define SELAK0(p...) REG(p)
* #define SELAK1(p...) REG(p)
* #define SELAK2(p...)
* #define REG(kind,tie,name,galn,aln,asz,csz,dbnum,base,rnum,bsz,rst,x...) \
* ...what you want to expand...
*/
#define XCHAL_NCP_SA_NUM 1
#define XCHAL_NCP_SA_LIST(s) \
XCHAL_SA_REG(s,0,0,0,1, br, 4, 4, 4,0x0204, sr,4 , 16,0,0,0)
#define XCHAL_CP0_SA_NUM 18
#define XCHAL_CP0_SA_LIST(s) \
XCHAL_SA_REG(s,0,0,1,0, fcr, 4, 4, 4,0x03E8, ur,232, 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, fsr, 4, 4, 4,0x03E9, ur,233, 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f0, 4, 4, 4,0x0030, f,0 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f1, 4, 4, 4,0x0031, f,1 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f2, 4, 4, 4,0x0032, f,2 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f3, 4, 4, 4,0x0033, f,3 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f4, 4, 4, 4,0x0034, f,4 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f5, 4, 4, 4,0x0035, f,5 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f6, 4, 4, 4,0x0036, f,6 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f7, 4, 4, 4,0x0037, f,7 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f8, 4, 4, 4,0x0038, f,8 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f9, 4, 4, 4,0x0039, f,9 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f10, 4, 4, 4,0x003A, f,10 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f11, 4, 4, 4,0x003B, f,11 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f12, 4, 4, 4,0x003C, f,12 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f13, 4, 4, 4,0x003D, f,13 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f14, 4, 4, 4,0x003E, f,14 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, f15, 4, 4, 4,0x003F, f,15 , 32,0,0,0)
#define XCHAL_CP1_SA_NUM 0
#define XCHAL_CP1_SA_LIST(s) /* empty */
#define XCHAL_CP2_SA_NUM 0
#define XCHAL_CP2_SA_LIST(s) /* empty */
#define XCHAL_CP3_SA_NUM 0
#define XCHAL_CP3_SA_LIST(s) /* empty */
#define XCHAL_CP4_SA_NUM 0
#define XCHAL_CP4_SA_LIST(s) /* empty */
#define XCHAL_CP5_SA_NUM 0
#define XCHAL_CP5_SA_LIST(s) /* empty */
#define XCHAL_CP6_SA_NUM 46
#define XCHAL_CP6_SA_LIST(s) \
XCHAL_SA_REG(s,0,0,1,0, ldcbhi,16, 4, 4,0x0300, ur,0 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, ldcblo, 4, 4, 4,0x0301, ur,1 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, stcbhi, 4, 4, 4,0x0302, ur,2 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, stcblo, 4, 4, 4,0x0303, ur,3 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, ldbrbase, 4, 4, 4,0x0308, ur,8 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, ldbroff, 4, 4, 4,0x0309, ur,9 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, ldbrinc, 4, 4, 4,0x030A, ur,10 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, stbrbase, 4, 4, 4,0x030B, ur,11 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, stbroff, 4, 4, 4,0x030C, ur,12 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, stbrinc, 4, 4, 4,0x030D, ur,13 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, scratch0, 4, 4, 4,0x0318, ur,24 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, scratch1, 4, 4, 4,0x0319, ur,25 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, scratch2, 4, 4, 4,0x031A, ur,26 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,1,0, scratch3, 4, 4, 4,0x031B, ur,27 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra0,16,16,16,0x1010, wra,0 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra1,16,16,16,0x1011, wra,1 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra2,16,16,16,0x1012, wra,2 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra3,16,16,16,0x1013, wra,3 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra4,16,16,16,0x1014, wra,4 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra5,16,16,16,0x1015, wra,5 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra6,16,16,16,0x1016, wra,6 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra7,16,16,16,0x1017, wra,7 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra8,16,16,16,0x1018, wra,8 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra9,16,16,16,0x1019, wra,9 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra10,16,16,16,0x101A, wra,10 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra11,16,16,16,0x101B, wra,11 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra12,16,16,16,0x101C, wra,12 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra13,16,16,16,0x101D, wra,13 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra14,16,16,16,0x101E, wra,14 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wra15,16,16,16,0x101F, wra,15 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb0,16,16,16,0x1020, wrb,0 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb1,16,16,16,0x1021, wrb,1 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb2,16,16,16,0x1022, wrb,2 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb3,16,16,16,0x1023, wrb,3 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb4,16,16,16,0x1024, wrb,4 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb5,16,16,16,0x1025, wrb,5 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb6,16,16,16,0x1026, wrb,6 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb7,16,16,16,0x1027, wrb,7 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb8,16,16,16,0x1028, wrb,8 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb9,16,16,16,0x1029, wrb,9 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb10,16,16,16,0x102A, wrb,10 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb11,16,16,16,0x102B, wrb,11 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb12,16,16,16,0x102C, wrb,12 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb13,16,16,16,0x102D, wrb,13 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb14,16,16,16,0x102E, wrb,14 ,128,0,0,0) \
XCHAL_SA_REG(s,0,0,2,0, wrb15,16,16,16,0x102F, wrb,15 ,128,0,0,0)
#define XCHAL_CP7_SA_NUM 0
#define XCHAL_CP7_SA_LIST(s) /* empty */
/* Byte length of instruction from its first nibble (op0 field), per FLIX. */
#define XCHAL_OP0_FORMAT_LENGTHS 3,3,3,3,3,3,3,3,2,2,2,2,2,2,8,8
#endif /*_XTENSA_CORE_TIE_H*/

74
arch/xtensa/variants/s6000/irq.c
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@ -1,74 +0,0 @@
/*
* s6000 irq crossbar
*
* Copyright (c) 2009 emlix GmbH
* Authors: Johannes Weiner <hannes@cmpxchg.org>
* Oskar Schirmer <oskar@scara.com>
*/
#include <linux/io.h>
#include <asm/irq.h>
#include <variant/hardware.h>
/* S6_REG_INTC */
#define INTC_STATUS 0x000
#define INTC_RAW 0x010
#define INTC_STATUS_AG 0x100
#define INTC_CFG(n) (0x200 + 4 * (n))
/*
* The s6000 has a crossbar that multiplexes interrupt output lines
* from the peripherals to input lines on the xtensa core.
*
* We leave the mapping decisions to the platform as it depends on the
* actually connected peripherals which distribution makes sense.
*/
extern const signed char *platform_irq_mappings[NR_IRQS];
static unsigned long scp_to_intc_enable[] = {
#define TO_INTC_ENABLE(n) (((n) << 1) + 1)
TO_INTC_ENABLE(0),
TO_INTC_ENABLE(1),
TO_INTC_ENABLE(2),
TO_INTC_ENABLE(3),
TO_INTC_ENABLE(4),
TO_INTC_ENABLE(5),
TO_INTC_ENABLE(6),
TO_INTC_ENABLE(7),
TO_INTC_ENABLE(8),
TO_INTC_ENABLE(9),
TO_INTC_ENABLE(10),
TO_INTC_ENABLE(11),
TO_INTC_ENABLE(12),
-1,
-1,
TO_INTC_ENABLE(13),
-1,
TO_INTC_ENABLE(14),
-1,
TO_INTC_ENABLE(15),
#undef TO_INTC_ENABLE
};
static void irq_set(unsigned int irq, int enable)
{
unsigned long en;
const signed char *m = platform_irq_mappings[irq];
if (!m)
return;
en = enable ? scp_to_intc_enable[irq] : 0;
while (*m >= 0) {
writel(en, S6_REG_INTC + INTC_CFG(*m));
m++;
}
}
void variant_irq_enable(unsigned int irq)
{
irq_set(irq, 1);
}
void variant_irq_disable(unsigned int irq)
{
irq_set(irq, 0);
}