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linux/arch/arm/mach-pxa/corgi.c
Russell King dc38e2ad53 [ARM] pxa: Fix RCSR handling 
Related to d3930614e6.

RCSR is only present on PXA2xx CPUs, not on PXA3xx CPUs.  Therefore,
we should not be unconditionally writing to RCSR from generic code.

Since we now clear the RCSR status from the SoC specific PXA PM code
and before reset in the arch_reset() function, the duplication in
the corgi, poodle, spitz and tosa code can be removed.

Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-08 18:04:02 +01:00

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/*
* Support for Sharp SL-C7xx PDAs
* Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
*
* Copyright (c) 2004-2005 Richard Purdie
*
* Based on Sharp's 2.4 kernel patches/lubbock.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/pm.h>
#include <linux/backlight.h>
#include <video/w100fb.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-gpio.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
#include <asm/arch/corgi.h>
#include <asm/arch/sharpsl.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/hardware/scoop.h>
#include "generic.h"
#include "devices.h"
#include "sharpsl.h"
/*
* Corgi SCOOP Device
*/
static struct resource corgi_scoop_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config corgi_scoop_setup = {
.io_dir = CORGI_SCOOP_IO_DIR,
.io_out = CORGI_SCOOP_IO_OUT,
};
struct platform_device corgiscoop_device = {
.name = "sharp-scoop",
.id = -1,
.dev = {
.platform_data = &corgi_scoop_setup,
},
.num_resources = ARRAY_SIZE(corgi_scoop_resources),
.resource = corgi_scoop_resources,
};
static void corgi_pcmcia_init(void)
{
/* Setup default state of GPIO outputs
before we enable them as outputs. */
GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
GPIO_bit(GPIO53_nPCE_2);
pxa_gpio_mode(GPIO48_nPOE_MD);
pxa_gpio_mode(GPIO49_nPWE_MD);
pxa_gpio_mode(GPIO50_nPIOR_MD);
pxa_gpio_mode(GPIO51_nPIOW_MD);
pxa_gpio_mode(GPIO55_nPREG_MD);
pxa_gpio_mode(GPIO56_nPWAIT_MD);
pxa_gpio_mode(GPIO57_nIOIS16_MD);
pxa_gpio_mode(GPIO52_nPCE_1_MD);
pxa_gpio_mode(GPIO53_nPCE_2_MD);
pxa_gpio_mode(GPIO54_pSKTSEL_MD);
}
static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
{
.dev = &corgiscoop_device.dev,
.irq = CORGI_IRQ_GPIO_CF_IRQ,
.cd_irq = CORGI_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},
};
static struct scoop_pcmcia_config corgi_pcmcia_config = {
.devs = &corgi_pcmcia_scoop[0],
.num_devs = 1,
.pcmcia_init = corgi_pcmcia_init,
};
EXPORT_SYMBOL(corgiscoop_device);
/*
* Corgi SSP Device
*
* Set the parent as the scoop device because a lot of SSP devices
* also use scoop functions and this makes the power up/down order
* work correctly.
*/
struct platform_device corgissp_device = {
.name = "corgi-ssp",
.dev = {
.parent = &corgiscoop_device.dev,
},
.id = -1,
};
struct corgissp_machinfo corgi_ssp_machinfo = {
.port = 1,
.cs_lcdcon = CORGI_GPIO_LCDCON_CS,
.cs_ads7846 = CORGI_GPIO_ADS7846_CS,
.cs_max1111 = CORGI_GPIO_MAX1111_CS,
.clk_lcdcon = 76,
.clk_ads7846 = 2,
.clk_max1111 = 8,
};
/*
* LCD/Framebuffer
*/
static void w100_lcdtg_suspend(struct w100fb_par *par)
{
corgi_lcdtg_suspend();
}
static void w100_lcdtg_init(struct w100fb_par *par)
{
corgi_lcdtg_hw_init(par->xres);
}
static struct w100_tg_info corgi_lcdtg_info = {
.change = w100_lcdtg_init,
.suspend = w100_lcdtg_suspend,
.resume = w100_lcdtg_init,
};
static struct w100_mem_info corgi_fb_mem = {
.ext_cntl = 0x00040003,
.sdram_mode_reg = 0x00650021,
.ext_timing_cntl = 0x10002a4a,
.io_cntl = 0x7ff87012,
.size = 0x1fffff,
};
static struct w100_gen_regs corgi_fb_regs = {
.lcd_format = 0x00000003,
.lcdd_cntl1 = 0x01CC0000,
.lcdd_cntl2 = 0x0003FFFF,
.genlcd_cntl1 = 0x00FFFF0D,
.genlcd_cntl2 = 0x003F3003,
.genlcd_cntl3 = 0x000102aa,
};
static struct w100_gpio_regs corgi_fb_gpio = {
.init_data1 = 0x000000bf,
.init_data2 = 0x00000000,
.gpio_dir1 = 0x00000000,
.gpio_oe1 = 0x03c0feff,
.gpio_dir2 = 0x00000000,
.gpio_oe2 = 0x00000000,
};
static struct w100_mode corgi_fb_modes[] = {
{
.xres = 480,
.yres = 640,
.left_margin = 0x56,
.right_margin = 0x55,
.upper_margin = 0x03,
.lower_margin = 0x00,
.crtc_ss = 0x82360056,
.crtc_ls = 0xA0280000,
.crtc_gs = 0x80280028,
.crtc_vpos_gs = 0x02830002,
.crtc_rev = 0x00400008,
.crtc_dclk = 0xA0000000,
.crtc_gclk = 0x8015010F,
.crtc_goe = 0x80100110,
.crtc_ps1_active = 0x41060010,
.pll_freq = 75,
.fast_pll_freq = 100,
.sysclk_src = CLK_SRC_PLL,
.sysclk_divider = 0,
.pixclk_src = CLK_SRC_PLL,
.pixclk_divider = 2,
.pixclk_divider_rotated = 6,
},{
.xres = 240,
.yres = 320,
.left_margin = 0x27,
.right_margin = 0x2e,
.upper_margin = 0x01,
.lower_margin = 0x00,
.crtc_ss = 0x81170027,
.crtc_ls = 0xA0140000,
.crtc_gs = 0xC0140014,
.crtc_vpos_gs = 0x00010141,
.crtc_rev = 0x00400008,
.crtc_dclk = 0xA0000000,
.crtc_gclk = 0x8015010F,
.crtc_goe = 0x80100110,
.crtc_ps1_active = 0x41060010,
.pll_freq = 0,
.fast_pll_freq = 0,
.sysclk_src = CLK_SRC_XTAL,
.sysclk_divider = 0,
.pixclk_src = CLK_SRC_XTAL,
.pixclk_divider = 1,
.pixclk_divider_rotated = 1,
},
};
static struct w100fb_mach_info corgi_fb_info = {
.tg = &corgi_lcdtg_info,
.init_mode = INIT_MODE_ROTATED,
.mem = &corgi_fb_mem,
.regs = &corgi_fb_regs,
.modelist = &corgi_fb_modes[0],
.num_modes = 2,
.gpio = &corgi_fb_gpio,
.xtal_freq = 12500000,
.xtal_dbl = 0,
};
static struct resource corgi_fb_resources[] = {
[0] = {
.start = 0x08000000,
.end = 0x08ffffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device corgifb_device = {
.name = "w100fb",
.id = -1,
.num_resources = ARRAY_SIZE(corgi_fb_resources),
.resource = corgi_fb_resources,
.dev = {
.platform_data = &corgi_fb_info,
.parent = &corgissp_device.dev,
},
};
/*
* Corgi Backlight Device
*/
static void corgi_bl_kick_battery(void)
{
void (*kick_batt)(void);
kick_batt = symbol_get(sharpsl_battery_kick);
if (kick_batt) {
kick_batt();
symbol_put(sharpsl_battery_kick);
}
}
static void corgi_bl_set_intensity(int intensity)
{
if (intensity > 0x10)
intensity += 0x10;
/* Bits 0-4 are accessed via the SSP interface */
corgi_ssp_blduty_set(intensity & 0x1f);
/* Bit 5 is via SCOOP */
if (intensity & 0x0020)
set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
else
reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
}
static struct generic_bl_info corgi_bl_machinfo = {
.name = "corgi-bl",
.max_intensity = 0x2f,
.default_intensity = 0x1f,
.limit_mask = 0x0b,
.set_bl_intensity = corgi_bl_set_intensity,
.kick_battery = corgi_bl_kick_battery,
};
static struct platform_device corgibl_device = {
.name = "generic-bl",
.dev = {
.parent = &corgifb_device.dev,
.platform_data = &corgi_bl_machinfo,
},
.id = -1,
};
/*
* Corgi Keyboard Device
*/
static struct platform_device corgikbd_device = {
.name = "corgi-keyboard",
.id = -1,
};
/*
* Corgi LEDs
*/
static struct platform_device corgiled_device = {
.name = "corgi-led",
.id = -1,
};
/*
* Corgi Touch Screen Device
*/
static unsigned long (*get_hsync_invperiod)(struct device *dev);
static void inline sharpsl_wait_sync(int gpio)
{
while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
}
static unsigned long corgi_get_hsync_invperiod(void)
{
if (!get_hsync_invperiod)
get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
if (!get_hsync_invperiod)
return 0;
return get_hsync_invperiod(&corgifb_device.dev);
}
static void corgi_put_hsync(void)
{
if (get_hsync_invperiod)
symbol_put(w100fb_get_hsynclen);
get_hsync_invperiod = NULL;
}
static void corgi_wait_hsync(void)
{
sharpsl_wait_sync(CORGI_GPIO_HSYNC);
}
static struct resource corgits_resources[] = {
[0] = {
.start = CORGI_IRQ_GPIO_TP_INT,
.end = CORGI_IRQ_GPIO_TP_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct corgits_machinfo corgi_ts_machinfo = {
.get_hsync_invperiod = corgi_get_hsync_invperiod,
.put_hsync = corgi_put_hsync,
.wait_hsync = corgi_wait_hsync,
};
static struct platform_device corgits_device = {
.name = "corgi-ts",
.dev = {
.parent = &corgissp_device.dev,
.platform_data = &corgi_ts_machinfo,
},
.id = -1,
.num_resources = ARRAY_SIZE(corgits_resources),
.resource = corgits_resources,
};
/*
* MMC/SD Device
*
* The card detect interrupt isn't debounced so we delay it by 250ms
* to give the card a chance to fully insert/eject.
*/
static struct pxamci_platform_data corgi_mci_platform_data;
static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
{
int err;
/* setup GPIO for PXA25x MMC controller */
pxa_gpio_mode(GPIO6_MMCCLK_MD);
pxa_gpio_mode(GPIO8_MMCCS0_MD);
pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (err)
printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
return err;
}
static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if (( 1 << vdd) & p_d->ocr_mask)
GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
else
GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
}
static int corgi_mci_get_ro(struct device *dev)
{
return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
}
static void corgi_mci_exit(struct device *dev, void *data)
{
free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
}
static struct pxamci_platform_data corgi_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = corgi_mci_init,
.get_ro = corgi_mci_get_ro,
.setpower = corgi_mci_setpower,
.exit = corgi_mci_exit,
};
/*
* Irda
*/
static void corgi_irda_transceiver_mode(struct device *dev, int mode)
{
if (mode & IR_OFF)
GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
else
GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
}
static struct pxaficp_platform_data corgi_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_OFF,
.transceiver_mode = corgi_irda_transceiver_mode,
};
/*
* USB Device Controller
*/
static struct pxa2xx_udc_mach_info udc_info __initdata = {
/* no connect GPIO; corgi can't tell connection status */
.gpio_pullup = CORGI_GPIO_USB_PULLUP,
};
static struct platform_device *devices[] __initdata = {
&corgiscoop_device,
&corgissp_device,
&corgifb_device,
&corgikbd_device,
&corgibl_device,
&corgits_device,
&corgiled_device,
};
static void corgi_poweroff(void)
{
if (!machine_is_corgi())
/* Green LED off tells the bootloader to halt */
reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
arm_machine_restart('h');
}
static void corgi_restart(char mode)
{
if (!machine_is_corgi())
/* Green LED on tells the bootloader to reboot */
set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
arm_machine_restart('h');
}
static void __init corgi_init(void)
{
pm_power_off = corgi_poweroff;
arm_pm_restart = corgi_restart;
/* setup sleep mode values */
PWER = 0x00000002;
PFER = 0x00000000;
PRER = 0x00000002;
PGSR0 = 0x0158C000;
PGSR1 = 0x00FF0080;
PGSR2 = 0x0001C004;
/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
PCFR |= PCFR_OPDE;
corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
pxa_set_udc_info(&udc_info);
pxa_set_mci_info(&corgi_mci_platform_data);
pxa_set_ficp_info(&corgi_ficp_platform_data);
platform_scoop_config = &corgi_pcmcia_config;
platform_add_devices(devices, ARRAY_SIZE(devices));
}
static void __init fixup_corgi(struct machine_desc *desc,
struct tag *tags, char **cmdline, struct meminfo *mi)
{
sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
mi->bank[0].node = 0;
if (machine_is_corgi())
mi->bank[0].size = (32*1024*1024);
else
mi->bank[0].size = (64*1024*1024);
}
#ifdef CONFIG_MACH_CORGI
MACHINE_START(CORGI, "SHARP Corgi")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_corgi,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.init_machine = corgi_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_SHEPHERD
MACHINE_START(SHEPHERD, "SHARP Shepherd")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_corgi,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.init_machine = corgi_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_HUSKY
MACHINE_START(HUSKY, "SHARP Husky")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_corgi,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.init_machine = corgi_init,
.timer = &pxa_timer,
MACHINE_END
#endif
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