Fixes for omaps that were not considered urgent enough for the -rc cycle.
This is mostly to enable errata 798181 and thermal support for dra7, configure ocp2scp for am437x, remove dead code for OMAP4_ERRATA_I688 and fix build warnings for omap1510 only config. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJVFc/qAAoJEBvUPslcq6VzopMQAN8i0DkYqm8cM8mK/UitjG7o +vfGo2ik3sk7AidU7vnjLdQFJOxo8T9LI9+OGr2YJ9JmbzkH1H2QsGVF/MYTaox7 i/Eb9MEPFuu9ek3iKAUVVwPTHi0ft3/W5EzwHIdKHHz6UGjrVuBNxyInNXJiVm4y mAragQWKQGwtSEqCpdSDgkzBh0VOPo9BSpa/1QXOsYLarOurAUNPKgbc6VoSzF9d nkvbwlXhVobvVIv5Qyhef9CHssRGL6pEgvJIoNVcqgBzjrPgat4l+qYE4ns/FEMp LjbE2p3pr2ODECC5xETWFqtKXlqywj1+4HtEcGOD6L52fBdpE5yshOEa81goHpI2 WMu4l4qus+u92g/012sOMH/KT0lTDPj1OTnjtgxonpmi12oJjWtKy/WQsussBfIU ttAiCZCoEguKrWAFiYZ4A3x5cUHFiC0Xn99h0p6I6fc434ORy6T5uBotgjGfQuBr YkpS8ok6wNkYWQUpxji0dO0MkUjf2VbQXWuFfhs5sK2yiwv6cDNK5a8rpDvgls1H JMwRxqqX7jL9d+yYXban6PZv2BKSpOzJTOVEdvpFUUYMHtRoNMqkAIuhtKtWWclc W9CnZCx2CBvfaz+Hs7IACWy7KhdhYj5xjiBgSpykJVWHmHU3HugbY27LJnxTFd2n ElZlY1NH1iZPjeAl3Q43 =Uqd0 -----END PGP SIGNATURE----- Merge tag 'omap-for-v4.1/fixes-0' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical Merge "omap non-urgent fixes for v4.1" from Tony Lindgren: Fixes for omaps that were not considered urgent enough for the -rc cycle. This is mostly to enable errata 798181 and thermal support for dra7, configure ocp2scp for am437x, remove dead code for OMAP4_ERRATA_I688 and fix build warnings for omap1510 only config. * tag 'omap-for-v4.1/fixes-0' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: DRA7: Enable Cortex A15 errata 798181 ARM: dts: am57xx-beagle-x15: Add thermal map to include fan and tmp102 ARM: dts: DRA7: Add bandgap and related thermal nodes bus: ocp2scp: SYNC2 value should be changed to 0x6 ARM: dts: am4372: Add "ti,am437x-ocp2scp" as compatible string for OCP2SCP ARM: OMAP2+: remove superfluous NULL pointer check ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA_I688 MAINTAINERS: add OMAP defconfigs under OMAP SUPPORT ARM: OMAP1: PM: fix some build warnings on 1510-only Kconfigs Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson
Коммит
77e3c09e45
|
|
@ -1,7 +1,8 @@
|
|||
* OMAP OCP2SCP - ocp interface to scp interface
|
||||
|
||||
properties:
|
||||
- compatible : Should be "ti,omap-ocp2scp"
|
||||
- compatible : Should be "ti,am437x-ocp2scp" for AM437x processor
|
||||
Should be "ti,omap-ocp2scp" for all others
|
||||
- reg : Address and length of the register set for the device
|
||||
- #address-cells, #size-cells : Must be present if the device has sub-nodes
|
||||
- ranges : the child address space are mapped 1:1 onto the parent address space
|
||||
|
|
|
|||
|
|
@ -6947,6 +6947,8 @@ Q: http://patchwork.kernel.org/project/linux-omap/list/
|
|||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
|
||||
S: Maintained
|
||||
F: arch/arm/*omap*/
|
||||
F: arch/arm/configs/omap1_defconfig
|
||||
F: arch/arm/configs/omap2plus_defconfig
|
||||
F: drivers/i2c/busses/i2c-omap.c
|
||||
F: drivers/irqchip/irq-omap-intc.c
|
||||
F: drivers/mfd/*omap*.c
|
||||
|
|
|
|||
|
|
@ -787,7 +787,7 @@
|
|||
};
|
||||
|
||||
ocp2scp0: ocp2scp@483a8000 {
|
||||
compatible = "ti,omap-ocp2scp";
|
||||
compatible = "ti,am437x-ocp2scp", "ti,omap-ocp2scp";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
ranges;
|
||||
|
|
@ -806,7 +806,7 @@
|
|||
};
|
||||
|
||||
ocp2scp1: ocp2scp@483e8000 {
|
||||
compatible = "ti,omap-ocp2scp";
|
||||
compatible = "ti,am437x-ocp2scp", "ti,omap-ocp2scp";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
ranges;
|
||||
|
|
|
|||
|
|
@ -87,6 +87,7 @@
|
|||
gpios = <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>;
|
||||
gpio-fan,speed-map = <0 0>,
|
||||
<13000 1>;
|
||||
#cooling-cells = <2>;
|
||||
};
|
||||
|
||||
extcon_usb1: extcon_usb1 {
|
||||
|
|
@ -442,6 +443,7 @@
|
|||
pinctrl-0 = <&tmp102_pins_default>;
|
||||
interrupt-parent = <&gpio7>;
|
||||
interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
|
||||
#thermal-sensor-cells = <1>;
|
||||
};
|
||||
};
|
||||
|
||||
|
|
@ -552,3 +554,50 @@
|
|||
&usb2 {
|
||||
dr_mode = "peripheral";
|
||||
};
|
||||
|
||||
&cpu_trips {
|
||||
cpu_alert1: cpu_alert1 {
|
||||
temperature = <50000>; /* millicelsius */
|
||||
hysteresis = <2000>; /* millicelsius */
|
||||
type = "active";
|
||||
};
|
||||
};
|
||||
|
||||
&cpu_cooling_maps {
|
||||
map1 {
|
||||
trip = <&cpu_alert1>;
|
||||
cooling-device = <&gpio_fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
|
||||
};
|
||||
};
|
||||
|
||||
&thermal_zones {
|
||||
board_thermal: board_thermal {
|
||||
polling-delay-passive = <1250>; /* milliseconds */
|
||||
polling-delay = <1500>; /* milliseconds */
|
||||
|
||||
/* sensor ID */
|
||||
thermal-sensors = <&tmp102 0>;
|
||||
|
||||
board_trips: trips {
|
||||
board_alert0: board_alert {
|
||||
temperature = <40000>; /* millicelsius */
|
||||
hysteresis = <2000>; /* millicelsius */
|
||||
type = "active";
|
||||
};
|
||||
|
||||
board_crit: board_crit {
|
||||
temperature = <105000>; /* millicelsius */
|
||||
hysteresis = <0>; /* millicelsius */
|
||||
type = "critical";
|
||||
};
|
||||
};
|
||||
|
||||
board_cooling_maps: cooling-maps {
|
||||
map0 {
|
||||
trip = <&board_alert0>;
|
||||
cooling-device =
|
||||
<&gpio_fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -177,6 +177,18 @@
|
|||
};
|
||||
};
|
||||
|
||||
bandgap: bandgap@4a0021e0 {
|
||||
reg = <0x4a0021e0 0xc
|
||||
0x4a00232c 0xc
|
||||
0x4a002380 0x2c
|
||||
0x4a0023C0 0x3c
|
||||
0x4a002564 0x8
|
||||
0x4a002574 0x50>;
|
||||
compatible = "ti,dra752-bandgap";
|
||||
interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
|
||||
#thermal-sensor-cells = <1>;
|
||||
};
|
||||
|
||||
cm_core_aon: cm_core_aon@4a005000 {
|
||||
compatible = "ti,dra7-cm-core-aon";
|
||||
reg = <0x4a005000 0x2000>;
|
||||
|
|
@ -1426,6 +1438,17 @@
|
|||
status = "disabled";
|
||||
};
|
||||
};
|
||||
|
||||
thermal_zones: thermal-zones {
|
||||
#include "omap4-cpu-thermal.dtsi"
|
||||
#include "omap5-gpu-thermal.dtsi"
|
||||
#include "omap5-core-thermal.dtsi"
|
||||
};
|
||||
|
||||
};
|
||||
|
||||
&cpu_thermal {
|
||||
polling-delay = <500>; /* milliseconds */
|
||||
};
|
||||
|
||||
/include/ "dra7xx-clocks.dtsi"
|
||||
|
|
|
|||
|
|
@ -20,6 +20,11 @@
|
|||
device_type = "cpu";
|
||||
compatible = "arm,cortex-a15";
|
||||
reg = <0>;
|
||||
|
||||
/* cooling options */
|
||||
cooling-min-level = <0>;
|
||||
cooling-max-level = <2>;
|
||||
#cooling-cells = <2>; /* min followed by max */
|
||||
};
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -31,6 +31,11 @@
|
|||
clock-names = "cpu";
|
||||
|
||||
clock-latency = <300000>; /* From omap-cpufreq driver */
|
||||
|
||||
/* cooling options */
|
||||
cooling-min-level = <0>;
|
||||
cooling-max-level = <2>;
|
||||
#cooling-cells = <2>; /* min followed by max */
|
||||
};
|
||||
cpu@1 {
|
||||
device_type = "cpu";
|
||||
|
|
|
|||
|
|
@ -18,7 +18,7 @@ cpu_thermal: cpu_thermal {
|
|||
/* sensor ID */
|
||||
thermal-sensors = <&bandgap 0>;
|
||||
|
||||
trips {
|
||||
cpu_trips: trips {
|
||||
cpu_alert0: cpu_alert {
|
||||
temperature = <100000>; /* millicelsius */
|
||||
hysteresis = <2000>; /* millicelsius */
|
||||
|
|
@ -31,7 +31,7 @@ cpu_thermal: cpu_thermal {
|
|||
};
|
||||
};
|
||||
|
||||
cooling-maps {
|
||||
cpu_cooling_maps: cooling-maps {
|
||||
map0 {
|
||||
trip = <&cpu_alert0>;
|
||||
cooling-device =
|
||||
|
|
|
|||
|
|
@ -71,13 +71,7 @@ static unsigned int mpui7xx_sleep_save[MPUI7XX_SLEEP_SAVE_SIZE];
|
|||
static unsigned int mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_SIZE];
|
||||
static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE];
|
||||
|
||||
#ifndef CONFIG_OMAP_32K_TIMER
|
||||
|
||||
static unsigned short enable_dyn_sleep = 0;
|
||||
|
||||
#else
|
||||
|
||||
static unsigned short enable_dyn_sleep = 1;
|
||||
static unsigned short enable_dyn_sleep;
|
||||
|
||||
static ssize_t idle_show(struct kobject *kobj, struct kobj_attribute *attr,
|
||||
char *buf)
|
||||
|
|
@ -90,8 +84,9 @@ static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr,
|
|||
{
|
||||
unsigned short value;
|
||||
if (sscanf(buf, "%hu", &value) != 1 ||
|
||||
(value != 0 && value != 1)) {
|
||||
printk(KERN_ERR "idle_sleep_store: Invalid value\n");
|
||||
(value != 0 && value != 1) ||
|
||||
(value != 0 && !IS_ENABLED(CONFIG_OMAP_32K_TIMER))) {
|
||||
pr_err("idle_sleep_store: Invalid value\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
enable_dyn_sleep = value;
|
||||
|
|
@ -101,7 +96,6 @@ static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr,
|
|||
static struct kobj_attribute sleep_while_idle_attr =
|
||||
__ATTR(sleep_while_idle, 0644, idle_show, idle_store);
|
||||
|
||||
#endif
|
||||
|
||||
static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
|
||||
|
||||
|
|
@ -115,16 +109,11 @@ void omap1_pm_idle(void)
|
|||
{
|
||||
extern __u32 arm_idlect1_mask;
|
||||
__u32 use_idlect1 = arm_idlect1_mask;
|
||||
int do_sleep = 0;
|
||||
|
||||
local_fiq_disable();
|
||||
|
||||
#if defined(CONFIG_OMAP_MPU_TIMER) && !defined(CONFIG_OMAP_DM_TIMER)
|
||||
#warning Enable 32kHz OS timer in order to allow sleep states in idle
|
||||
use_idlect1 = use_idlect1 & ~(1 << 9);
|
||||
#else
|
||||
if (enable_dyn_sleep)
|
||||
do_sleep = 1;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_OMAP_DM_TIMER
|
||||
|
|
@ -134,10 +123,12 @@ void omap1_pm_idle(void)
|
|||
if (omap_dma_running())
|
||||
use_idlect1 &= ~(1 << 6);
|
||||
|
||||
/* We should be able to remove the do_sleep variable and multiple
|
||||
/*
|
||||
* We should be able to remove the do_sleep variable and multiple
|
||||
* tests above as soon as drivers, timer and DMA code have been fixed.
|
||||
* Even the sleep block count should become obsolete. */
|
||||
if ((use_idlect1 != ~0) || !do_sleep) {
|
||||
* Even the sleep block count should become obsolete.
|
||||
*/
|
||||
if ((use_idlect1 != ~0) || !enable_dyn_sleep) {
|
||||
|
||||
__u32 saved_idlect1 = omap_readl(ARM_IDLECT1);
|
||||
if (cpu_is_omap15xx())
|
||||
|
|
@ -635,15 +626,25 @@ static const struct platform_suspend_ops omap_pm_ops = {
|
|||
|
||||
static int __init omap_pm_init(void)
|
||||
{
|
||||
|
||||
#ifdef CONFIG_OMAP_32K_TIMER
|
||||
int error;
|
||||
#endif
|
||||
int error = 0;
|
||||
|
||||
if (!cpu_class_is_omap1())
|
||||
return -ENODEV;
|
||||
|
||||
printk("Power Management for TI OMAP.\n");
|
||||
pr_info("Power Management for TI OMAP.\n");
|
||||
|
||||
if (!IS_ENABLED(CONFIG_OMAP_32K_TIMER))
|
||||
pr_info("OMAP1 PM: sleep states in idle disabled due to no 32KiHz timer\n");
|
||||
|
||||
if (!IS_ENABLED(CONFIG_OMAP_DM_TIMER))
|
||||
pr_info("OMAP1 PM: sleep states in idle disabled due to no DMTIMER support\n");
|
||||
|
||||
if (IS_ENABLED(CONFIG_OMAP_32K_TIMER) &&
|
||||
IS_ENABLED(CONFIG_OMAP_DM_TIMER)) {
|
||||
/* OMAP16xx only */
|
||||
pr_info("OMAP1 PM: sleep states in idle enabled\n");
|
||||
enable_dyn_sleep = 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* We copy the assembler sleep/wakeup routines to SRAM.
|
||||
|
|
@ -693,17 +694,15 @@ static int __init omap_pm_init(void)
|
|||
omap_pm_init_debugfs();
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_OMAP_32K_TIMER
|
||||
error = sysfs_create_file(power_kobj, &sleep_while_idle_attr.attr);
|
||||
if (error)
|
||||
printk(KERN_ERR "sysfs_create_file failed: %d\n", error);
|
||||
#endif
|
||||
|
||||
if (cpu_is_omap16xx()) {
|
||||
/* configure LOW_PWR pin */
|
||||
omap_cfg_reg(T20_1610_LOW_PWR);
|
||||
}
|
||||
|
||||
return 0;
|
||||
return error;
|
||||
}
|
||||
__initcall(omap_pm_init);
|
||||
|
|
|
|||
|
|
@ -69,6 +69,7 @@ config SOC_DRA7XX
|
|||
select ARM_GIC
|
||||
select HAVE_ARM_ARCH_TIMER
|
||||
select IRQ_CROSSBAR
|
||||
select ARM_ERRATA_798181 if SMP
|
||||
|
||||
config ARCH_OMAP2PLUS
|
||||
bool
|
||||
|
|
@ -278,27 +279,6 @@ config OMAP3_SDRC_AC_TIMING
|
|||
wish to say no. Selecting yes without understanding what is
|
||||
going on could result in system crashes;
|
||||
|
||||
config OMAP4_ERRATA_I688
|
||||
bool "OMAP4 errata: Async Bridge Corruption"
|
||||
depends on (ARCH_OMAP4 || SOC_OMAP5) && !ARCH_MULTIPLATFORM
|
||||
select ARCH_HAS_BARRIERS
|
||||
help
|
||||
If a data is stalled inside asynchronous bridge because of back
|
||||
pressure, it may be accepted multiple times, creating pointer
|
||||
misalignment that will corrupt next transfers on that data path
|
||||
until next reset of the system (No recovery procedure once the
|
||||
issue is hit, the path remains consistently broken). Async bridge
|
||||
can be found on path between MPU to EMIF and MPU to L3 interconnect.
|
||||
This situation can happen only when the idle is initiated by a
|
||||
Master Request Disconnection (which is trigged by software when
|
||||
executing WFI on CPU).
|
||||
The work-around for this errata needs all the initiators connected
|
||||
through async bridge must ensure that data path is properly drained
|
||||
before issuing WFI. This condition will be met if one Strongly ordered
|
||||
access is performed to the target right before executing the WFI.
|
||||
In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained.
|
||||
IO barrier ensure that there is no synchronisation loss on initiators
|
||||
operating on both interconnect port simultaneously.
|
||||
endmenu
|
||||
|
||||
endif
|
||||
|
|
|
|||
|
|
@ -30,5 +30,4 @@ int __weak omap_secure_ram_reserve_memblock(void)
|
|||
void __init omap_reserve(void)
|
||||
{
|
||||
omap_secure_ram_reserve_memblock();
|
||||
omap_barrier_reserve_memblock();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -200,9 +200,6 @@ void __init omap4_map_io(void);
|
|||
void __init omap5_map_io(void);
|
||||
void __init ti81xx_map_io(void);
|
||||
|
||||
/* omap_barriers_init() is OMAP4 only */
|
||||
void omap_barriers_init(void);
|
||||
|
||||
/**
|
||||
* omap_test_timeout - busy-loop, testing a condition
|
||||
* @cond: condition to test until it evaluates to true
|
||||
|
|
|
|||
|
|
@ -306,7 +306,6 @@ void __init am33xx_map_io(void)
|
|||
void __init omap4_map_io(void)
|
||||
{
|
||||
iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
|
||||
omap_barriers_init();
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
@ -314,7 +313,6 @@ void __init omap4_map_io(void)
|
|||
void __init omap5_map_io(void)
|
||||
{
|
||||
iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
|
||||
omap_barriers_init();
|
||||
}
|
||||
#endif
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -1053,7 +1053,7 @@ static void __init omap_mux_init_list(struct omap_mux_partition *partition,
|
|||
struct omap_mux *entry;
|
||||
|
||||
#ifdef CONFIG_OMAP_MUX
|
||||
if (!superset->muxnames || !superset->muxnames[0]) {
|
||||
if (!superset->muxnames[0]) {
|
||||
superset++;
|
||||
continue;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -70,13 +70,6 @@ extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
|
|||
extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
|
||||
extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag);
|
||||
|
||||
#ifdef CONFIG_OMAP4_ERRATA_I688
|
||||
extern int omap_barrier_reserve_memblock(void);
|
||||
#else
|
||||
static inline void omap_barrier_reserve_memblock(void)
|
||||
{ }
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
|
||||
void set_cntfreq(void);
|
||||
#else
|
||||
|
|
|
|||
|
|
@ -52,75 +52,6 @@ static void __iomem *twd_base;
|
|||
|
||||
#define IRQ_LOCALTIMER 29
|
||||
|
||||
#ifdef CONFIG_OMAP4_ERRATA_I688
|
||||
/* Used to implement memory barrier on DRAM path */
|
||||
#define OMAP4_DRAM_BARRIER_VA 0xfe600000
|
||||
|
||||
void __iomem *dram_sync, *sram_sync;
|
||||
|
||||
static phys_addr_t paddr;
|
||||
static u32 size;
|
||||
|
||||
void omap_bus_sync(void)
|
||||
{
|
||||
if (dram_sync && sram_sync) {
|
||||
writel_relaxed(readl_relaxed(dram_sync), dram_sync);
|
||||
writel_relaxed(readl_relaxed(sram_sync), sram_sync);
|
||||
isb();
|
||||
}
|
||||
}
|
||||
EXPORT_SYMBOL(omap_bus_sync);
|
||||
|
||||
static int __init omap4_sram_init(void)
|
||||
{
|
||||
struct device_node *np;
|
||||
struct gen_pool *sram_pool;
|
||||
|
||||
np = of_find_compatible_node(NULL, NULL, "ti,omap4-mpu");
|
||||
if (!np)
|
||||
pr_warn("%s:Unable to allocate sram needed to handle errata I688\n",
|
||||
__func__);
|
||||
sram_pool = of_get_named_gen_pool(np, "sram", 0);
|
||||
if (!sram_pool)
|
||||
pr_warn("%s:Unable to get sram pool needed to handle errata I688\n",
|
||||
__func__);
|
||||
else
|
||||
sram_sync = (void *)gen_pool_alloc(sram_pool, PAGE_SIZE);
|
||||
|
||||
return 0;
|
||||
}
|
||||
omap_arch_initcall(omap4_sram_init);
|
||||
|
||||
/* Steal one page physical memory for barrier implementation */
|
||||
int __init omap_barrier_reserve_memblock(void)
|
||||
{
|
||||
|
||||
size = ALIGN(PAGE_SIZE, SZ_1M);
|
||||
paddr = arm_memblock_steal(size, SZ_1M);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void __init omap_barriers_init(void)
|
||||
{
|
||||
struct map_desc dram_io_desc[1];
|
||||
|
||||
dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA;
|
||||
dram_io_desc[0].pfn = __phys_to_pfn(paddr);
|
||||
dram_io_desc[0].length = size;
|
||||
dram_io_desc[0].type = MT_MEMORY_RW_SO;
|
||||
iotable_init(dram_io_desc, ARRAY_SIZE(dram_io_desc));
|
||||
dram_sync = (void __iomem *) dram_io_desc[0].virtual;
|
||||
|
||||
pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n",
|
||||
(long long) paddr, dram_io_desc[0].virtual);
|
||||
|
||||
}
|
||||
#else
|
||||
void __init omap_barriers_init(void)
|
||||
{}
|
||||
#endif
|
||||
|
||||
void gic_dist_disable(void)
|
||||
{
|
||||
if (gic_dist_base_addr)
|
||||
|
|
|
|||
|
|
@ -333,11 +333,9 @@ ENDPROC(omap4_cpu_resume)
|
|||
|
||||
#endif /* defined(CONFIG_SMP) && defined(CONFIG_PM) */
|
||||
|
||||
#ifndef CONFIG_OMAP4_ERRATA_I688
|
||||
ENTRY(omap_bus_sync)
|
||||
ret lr
|
||||
ENDPROC(omap_bus_sync)
|
||||
#endif
|
||||
|
||||
ENTRY(omap_do_wfi)
|
||||
stmfd sp!, {lr}
|
||||
|
|
|
|||
|
|
@ -16,6 +16,7 @@
|
|||
*
|
||||
*/
|
||||
|
||||
#include <linux/io.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/err.h>
|
||||
|
|
@ -23,6 +24,9 @@
|
|||
#include <linux/of.h>
|
||||
#include <linux/of_platform.h>
|
||||
|
||||
#define OCP2SCP_TIMING 0x18
|
||||
#define SYNC2_MASK 0xf
|
||||
|
||||
static int ocp2scp_remove_devices(struct device *dev, void *c)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
|
|
@ -35,6 +39,9 @@ static int ocp2scp_remove_devices(struct device *dev, void *c)
|
|||
static int omap_ocp2scp_probe(struct platform_device *pdev)
|
||||
{
|
||||
int ret;
|
||||
u32 reg;
|
||||
void __iomem *regs;
|
||||
struct resource *res;
|
||||
struct device_node *np = pdev->dev.of_node;
|
||||
|
||||
if (np) {
|
||||
|
|
@ -47,6 +54,32 @@ static int omap_ocp2scp_probe(struct platform_device *pdev)
|
|||
}
|
||||
|
||||
pm_runtime_enable(&pdev->dev);
|
||||
/*
|
||||
* As per AM572x TRM: http://www.ti.com/lit/ug/spruhz6/spruhz6.pdf
|
||||
* under section 26.3.2.2, table 26-26 OCP2SCP TIMING Caution;
|
||||
* As per OMAP4430 TRM: http://www.ti.com/lit/ug/swpu231ap/swpu231ap.pdf
|
||||
* under section 23.12.6.2.2 , Table 23-1213 OCP2SCP TIMING Caution;
|
||||
* As per OMAP4460 TRM: http://www.ti.com/lit/ug/swpu235ab/swpu235ab.pdf
|
||||
* under section 23.12.6.2.2, Table 23-1213 OCP2SCP TIMING Caution;
|
||||
* As per OMAP543x TRM http://www.ti.com/lit/pdf/swpu249
|
||||
* under section 27.3.2.2, Table 27-27 OCP2SCP TIMING Caution;
|
||||
*
|
||||
* Read path of OCP2SCP is not working properly due to low reset value
|
||||
* of SYNC2 parameter in OCP2SCP. Suggested reset value is 0x6 or more.
|
||||
*/
|
||||
if (!of_device_is_compatible(np, "ti,am437x-ocp2scp")) {
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
regs = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(regs))
|
||||
goto err0;
|
||||
|
||||
pm_runtime_get_sync(&pdev->dev);
|
||||
reg = readl_relaxed(regs + OCP2SCP_TIMING);
|
||||
reg &= ~(SYNC2_MASK);
|
||||
reg |= 0x6;
|
||||
writel_relaxed(reg, regs + OCP2SCP_TIMING);
|
||||
pm_runtime_put_sync(&pdev->dev);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
|
|
@ -67,6 +100,7 @@ static int omap_ocp2scp_remove(struct platform_device *pdev)
|
|||
#ifdef CONFIG_OF
|
||||
static const struct of_device_id omap_ocp2scp_id_table[] = {
|
||||
{ .compatible = "ti,omap-ocp2scp" },
|
||||
{ .compatible = "ti,am437x-ocp2scp" },
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, omap_ocp2scp_id_table);
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче