408 строки
10 KiB
C
408 строки
10 KiB
C
/*
|
|
* linux/arch/arm/mach-realview/core.c
|
|
*
|
|
* Copyright (C) 1999 - 2003 ARM Limited
|
|
* Copyright (C) 2000 Deep Blue Solutions Ltd
|
|
*
|
|
* 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/device.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/amba/bus.h>
|
|
#include <linux/amba/clcd.h>
|
|
#include <linux/platform_data/video-clcd-versatile.h>
|
|
#include <linux/io.h>
|
|
#include <linux/smsc911x.h>
|
|
#include <linux/smc91x.h>
|
|
#include <linux/ata_platform.h>
|
|
#include <linux/amba/mmci.h>
|
|
#include <linux/gfp.h>
|
|
#include <linux/mtd/physmap.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/hardware/arm_timer.h>
|
|
#include <asm/hardware/icst.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/irq.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
|
|
#include <mach/platform.h>
|
|
#include <mach/irqs.h>
|
|
#include <asm/hardware/timer-sp.h>
|
|
|
|
#include <plat/sched_clock.h>
|
|
|
|
#include "core.h"
|
|
|
|
#define REALVIEW_FLASHCTRL (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_FLASH_OFFSET)
|
|
|
|
static void realview_flash_set_vpp(struct platform_device *pdev, int on)
|
|
{
|
|
u32 val;
|
|
|
|
val = __raw_readl(REALVIEW_FLASHCTRL);
|
|
if (on)
|
|
val |= REALVIEW_FLASHPROG_FLVPPEN;
|
|
else
|
|
val &= ~REALVIEW_FLASHPROG_FLVPPEN;
|
|
__raw_writel(val, REALVIEW_FLASHCTRL);
|
|
}
|
|
|
|
static struct physmap_flash_data realview_flash_data = {
|
|
.width = 4,
|
|
.set_vpp = realview_flash_set_vpp,
|
|
};
|
|
|
|
struct platform_device realview_flash_device = {
|
|
.name = "physmap-flash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &realview_flash_data,
|
|
},
|
|
};
|
|
|
|
int realview_flash_register(struct resource *res, u32 num)
|
|
{
|
|
realview_flash_device.resource = res;
|
|
realview_flash_device.num_resources = num;
|
|
return platform_device_register(&realview_flash_device);
|
|
}
|
|
|
|
static struct smsc911x_platform_config smsc911x_config = {
|
|
.flags = SMSC911X_USE_32BIT,
|
|
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
|
|
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
|
|
.phy_interface = PHY_INTERFACE_MODE_MII,
|
|
};
|
|
|
|
static struct smc91x_platdata smc91x_platdata = {
|
|
.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
|
|
};
|
|
|
|
static struct platform_device realview_eth_device = {
|
|
.name = "smsc911x",
|
|
.id = 0,
|
|
.num_resources = 2,
|
|
};
|
|
|
|
int realview_eth_register(const char *name, struct resource *res)
|
|
{
|
|
if (name)
|
|
realview_eth_device.name = name;
|
|
realview_eth_device.resource = res;
|
|
if (strcmp(realview_eth_device.name, "smsc911x") == 0)
|
|
realview_eth_device.dev.platform_data = &smsc911x_config;
|
|
else
|
|
realview_eth_device.dev.platform_data = &smc91x_platdata;
|
|
|
|
return platform_device_register(&realview_eth_device);
|
|
}
|
|
|
|
struct platform_device realview_usb_device = {
|
|
.name = "isp1760",
|
|
.num_resources = 2,
|
|
};
|
|
|
|
int realview_usb_register(struct resource *res)
|
|
{
|
|
realview_usb_device.resource = res;
|
|
return platform_device_register(&realview_usb_device);
|
|
}
|
|
|
|
static struct pata_platform_info pata_platform_data = {
|
|
.ioport_shift = 1,
|
|
};
|
|
|
|
static struct resource pata_resources[] = {
|
|
[0] = {
|
|
.start = REALVIEW_CF_BASE,
|
|
.end = REALVIEW_CF_BASE + 0xff,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = REALVIEW_CF_BASE + 0x100,
|
|
.end = REALVIEW_CF_BASE + SZ_4K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
struct platform_device realview_cf_device = {
|
|
.name = "pata_platform",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(pata_resources),
|
|
.resource = pata_resources,
|
|
.dev = {
|
|
.platform_data = &pata_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct resource realview_leds_resources[] = {
|
|
{
|
|
.start = REALVIEW_SYS_BASE + REALVIEW_SYS_LED_OFFSET,
|
|
.end = REALVIEW_SYS_BASE + REALVIEW_SYS_LED_OFFSET + 4,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
struct platform_device realview_leds_device = {
|
|
.name = "versatile-leds",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(realview_leds_resources),
|
|
.resource = realview_leds_resources,
|
|
};
|
|
|
|
static struct resource realview_i2c_resource = {
|
|
.start = REALVIEW_I2C_BASE,
|
|
.end = REALVIEW_I2C_BASE + SZ_4K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
struct platform_device realview_i2c_device = {
|
|
.name = "versatile-i2c",
|
|
.id = 0,
|
|
.num_resources = 1,
|
|
.resource = &realview_i2c_resource,
|
|
};
|
|
|
|
static struct i2c_board_info realview_i2c_board_info[] = {
|
|
{
|
|
I2C_BOARD_INFO("ds1338", 0xd0 >> 1),
|
|
},
|
|
};
|
|
|
|
static int __init realview_i2c_init(void)
|
|
{
|
|
return i2c_register_board_info(0, realview_i2c_board_info,
|
|
ARRAY_SIZE(realview_i2c_board_info));
|
|
}
|
|
arch_initcall(realview_i2c_init);
|
|
|
|
#define REALVIEW_SYSMCI (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_MCI_OFFSET)
|
|
|
|
/*
|
|
* This is only used if GPIOLIB support is disabled
|
|
*/
|
|
static unsigned int realview_mmc_status(struct device *dev)
|
|
{
|
|
struct amba_device *adev = container_of(dev, struct amba_device, dev);
|
|
u32 mask;
|
|
|
|
if (machine_is_realview_pb1176()) {
|
|
static bool inserted = false;
|
|
|
|
/*
|
|
* The PB1176 does not have the status register,
|
|
* assume it is inserted at startup, then invert
|
|
* for each call so card insertion/removal will
|
|
* be detected anyway. This will not be called if
|
|
* GPIO on PL061 is active, which is the proper
|
|
* way to do this on the PB1176.
|
|
*/
|
|
inserted = !inserted;
|
|
return inserted ? 0 : 1;
|
|
}
|
|
|
|
if (adev->res.start == REALVIEW_MMCI0_BASE)
|
|
mask = 1;
|
|
else
|
|
mask = 2;
|
|
|
|
return readl(REALVIEW_SYSMCI) & mask;
|
|
}
|
|
|
|
struct mmci_platform_data realview_mmc0_plat_data = {
|
|
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
|
|
.status = realview_mmc_status,
|
|
.gpio_wp = 17,
|
|
.gpio_cd = 16,
|
|
.cd_invert = true,
|
|
};
|
|
|
|
struct mmci_platform_data realview_mmc1_plat_data = {
|
|
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
|
|
.status = realview_mmc_status,
|
|
.gpio_wp = 19,
|
|
.gpio_cd = 18,
|
|
.cd_invert = true,
|
|
};
|
|
|
|
void __init realview_init_early(void)
|
|
{
|
|
void __iomem *sys = __io_address(REALVIEW_SYS_BASE);
|
|
|
|
versatile_sched_clock_init(sys + REALVIEW_SYS_24MHz_OFFSET, 24000000);
|
|
}
|
|
|
|
/*
|
|
* CLCD support.
|
|
*/
|
|
#define SYS_CLCD_NLCDIOON (1 << 2)
|
|
#define SYS_CLCD_VDDPOSSWITCH (1 << 3)
|
|
#define SYS_CLCD_PWR3V5SWITCH (1 << 4)
|
|
#define SYS_CLCD_ID_MASK (0x1f << 8)
|
|
#define SYS_CLCD_ID_SANYO_3_8 (0x00 << 8)
|
|
#define SYS_CLCD_ID_UNKNOWN_8_4 (0x01 << 8)
|
|
#define SYS_CLCD_ID_EPSON_2_2 (0x02 << 8)
|
|
#define SYS_CLCD_ID_SANYO_2_5 (0x07 << 8)
|
|
#define SYS_CLCD_ID_VGA (0x1f << 8)
|
|
|
|
/*
|
|
* Disable all display connectors on the interface module.
|
|
*/
|
|
static void realview_clcd_disable(struct clcd_fb *fb)
|
|
{
|
|
void __iomem *sys_clcd = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_CLCD_OFFSET;
|
|
u32 val;
|
|
|
|
val = readl(sys_clcd);
|
|
val &= ~SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH;
|
|
writel(val, sys_clcd);
|
|
}
|
|
|
|
/*
|
|
* Enable the relevant connector on the interface module.
|
|
*/
|
|
static void realview_clcd_enable(struct clcd_fb *fb)
|
|
{
|
|
void __iomem *sys_clcd = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_CLCD_OFFSET;
|
|
u32 val;
|
|
|
|
/*
|
|
* Enable the PSUs
|
|
*/
|
|
val = readl(sys_clcd);
|
|
val |= SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH;
|
|
writel(val, sys_clcd);
|
|
}
|
|
|
|
/*
|
|
* Detect which LCD panel is connected, and return the appropriate
|
|
* clcd_panel structure. Note: we do not have any information on
|
|
* the required timings for the 8.4in panel, so we presently assume
|
|
* VGA timings.
|
|
*/
|
|
static int realview_clcd_setup(struct clcd_fb *fb)
|
|
{
|
|
void __iomem *sys_clcd = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_CLCD_OFFSET;
|
|
const char *panel_name, *vga_panel_name;
|
|
unsigned long framesize;
|
|
u32 val;
|
|
|
|
if (machine_is_realview_eb()) {
|
|
/* VGA, 16bpp */
|
|
framesize = 640 * 480 * 2;
|
|
vga_panel_name = "VGA";
|
|
} else {
|
|
/* XVGA, 16bpp */
|
|
framesize = 1024 * 768 * 2;
|
|
vga_panel_name = "XVGA";
|
|
}
|
|
|
|
val = readl(sys_clcd) & SYS_CLCD_ID_MASK;
|
|
if (val == SYS_CLCD_ID_SANYO_3_8)
|
|
panel_name = "Sanyo TM38QV67A02A";
|
|
else if (val == SYS_CLCD_ID_SANYO_2_5)
|
|
panel_name = "Sanyo QVGA Portrait";
|
|
else if (val == SYS_CLCD_ID_EPSON_2_2)
|
|
panel_name = "Epson L2F50113T00";
|
|
else if (val == SYS_CLCD_ID_VGA)
|
|
panel_name = vga_panel_name;
|
|
else {
|
|
pr_err("CLCD: unknown LCD panel ID 0x%08x, using VGA\n", val);
|
|
panel_name = vga_panel_name;
|
|
}
|
|
|
|
fb->panel = versatile_clcd_get_panel(panel_name);
|
|
if (!fb->panel)
|
|
return -EINVAL;
|
|
|
|
return versatile_clcd_setup_dma(fb, framesize);
|
|
}
|
|
|
|
struct clcd_board clcd_plat_data = {
|
|
.name = "RealView",
|
|
.caps = CLCD_CAP_ALL,
|
|
.check = clcdfb_check,
|
|
.decode = clcdfb_decode,
|
|
.disable = realview_clcd_disable,
|
|
.enable = realview_clcd_enable,
|
|
.setup = realview_clcd_setup,
|
|
.mmap = versatile_clcd_mmap_dma,
|
|
.remove = versatile_clcd_remove_dma,
|
|
};
|
|
|
|
/*
|
|
* Where is the timer (VA)?
|
|
*/
|
|
void __iomem *timer0_va_base;
|
|
void __iomem *timer1_va_base;
|
|
void __iomem *timer2_va_base;
|
|
void __iomem *timer3_va_base;
|
|
|
|
/*
|
|
* Set up the clock source and clock events devices
|
|
*/
|
|
void __init realview_timer_init(unsigned int timer_irq)
|
|
{
|
|
u32 val;
|
|
|
|
/*
|
|
* set clock frequency:
|
|
* REALVIEW_REFCLK is 32KHz
|
|
* REALVIEW_TIMCLK is 1MHz
|
|
*/
|
|
val = readl(__io_address(REALVIEW_SCTL_BASE));
|
|
writel((REALVIEW_TIMCLK << REALVIEW_TIMER1_EnSel) |
|
|
(REALVIEW_TIMCLK << REALVIEW_TIMER2_EnSel) |
|
|
(REALVIEW_TIMCLK << REALVIEW_TIMER3_EnSel) |
|
|
(REALVIEW_TIMCLK << REALVIEW_TIMER4_EnSel) | val,
|
|
__io_address(REALVIEW_SCTL_BASE));
|
|
|
|
/*
|
|
* Initialise to a known state (all timers off)
|
|
*/
|
|
writel(0, timer0_va_base + TIMER_CTRL);
|
|
writel(0, timer1_va_base + TIMER_CTRL);
|
|
writel(0, timer2_va_base + TIMER_CTRL);
|
|
writel(0, timer3_va_base + TIMER_CTRL);
|
|
|
|
sp804_clocksource_init(timer3_va_base, "timer3");
|
|
sp804_clockevents_init(timer0_va_base, timer_irq, "timer0");
|
|
}
|
|
|
|
/*
|
|
* Setup the memory banks.
|
|
*/
|
|
void realview_fixup(struct tag *tags, char **from)
|
|
{
|
|
/*
|
|
* Most RealView platforms have 512MB contiguous RAM at 0x70000000.
|
|
* Half of this is mirrored at 0.
|
|
*/
|
|
#ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET
|
|
memblock_add(0x70000000, SZ_512M);
|
|
#else
|
|
memblock_add(0, SZ_256M);
|
|
#endif
|
|
}
|