/*
* Support for Sharp SL-Cxx00 Series of PDAs
* Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
*
* Copyright (c) 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/delay.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 <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/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 <mach/pxa-regs.h>
#include <mach/pxa2xx-regs.h>
#include <mach/pxa2xx-gpio.h>
#include <mach/pxa27x-udc.h>
#include <mach/reset.h>
#include <mach/i2c.h>
#include <mach/irda.h>
#include <mach/mmc.h>
#include <mach/ohci.h>
#include <mach/udc.h>
#include <mach/pxafb.h>
#include <mach/akita.h>
#include <mach/spitz.h>
#include <mach/sharpsl.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/hardware/scoop.h>
#include "generic.h"
#include "devices.h"
#include "sharpsl.h"
/*
* Spitz SCOOP Device #1
*/
static struct resource spitz_scoop_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config spitz_scoop_setup = {
.io_dir = SPITZ_SCP_IO_DIR,
.io_out = SPITZ_SCP_IO_OUT,
.suspend_clr = SPITZ_SCP_SUS_CLR,
.suspend_set = SPITZ_SCP_SUS_SET,
};
struct platform_device spitzscoop_device = {
.name = "sharp-scoop",
.id = 0,
.dev = {
.platform_data = &spitz_scoop_setup,
},
.num_resources = ARRAY_SIZE(spitz_scoop_resources),
.resource = spitz_scoop_resources,
};
/*
* Spitz SCOOP Device #2
*/
static struct resource spitz_scoop2_resources[] = {
[0] = {
.start = 0x08800040,
.end = 0x08800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config spitz_scoop2_setup = {
.io_dir = SPITZ_SCP2_IO_DIR,
.io_out = SPITZ_SCP2_IO_OUT,
.suspend_clr = SPITZ_SCP2_SUS_CLR,
.suspend_set = SPITZ_SCP2_SUS_SET,
};
struct platform_device spitzscoop2_device = {
.name = "sharp-scoop",
.id = 1,
.dev = {
.platform_data = &spitz_scoop2_setup,
},
.num_resources = ARRAY_SIZE(spitz_scoop2_resources),
.resource = spitz_scoop2_resources,
};
#define SPITZ_PWR_SD 0x01
#define SPITZ_PWR_CF 0x02
/* Power control is shared with between one of the CF slots and SD */
static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
{
unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
if (new_cpr & 0x0007) {
set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
if (!(cpr & 0x0002) && !(cpr & 0x0004))
mdelay(5);
if (device == SPITZ_PWR_CF)
cpr |= 0x0002;
if (device == SPITZ_PWR_SD)
cpr |= 0x0004;
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
} else {
if (device == SPITZ_PWR_CF)
cpr &= ~0x0002;
if (device == SPITZ_PWR_SD)
cpr &= ~0x0004;
if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
mdelay(1);
reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
} else {
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
}
}
}
static void spitz_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(GPIO54_nPCE_2);
GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
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(GPIO85_nPCE_1_MD);
pxa_gpio_mode(GPIO54_nPCE_2_MD);
pxa_gpio_mode(GPIO104_pSKTSEL_MD);
}
static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
{
/* Only need to override behaviour for slot 0 */
if (nr == 0)
spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
else
write_scoop_reg(scoop, SCOOP_CPR, cpr);
}
static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
{
.dev = &spitzscoop_device.dev,
.irq = SPITZ_IRQ_GPIO_CF_IRQ,
.cd_irq = SPITZ_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},{
.dev = &spitzscoop2_device.dev,
.irq = SPITZ_IRQ_GPIO_CF2_IRQ,
.cd_irq = -1,
},
};
static struct scoop_pcmcia_config spitz_pcmcia_config = {
.devs = &spitz_pcmcia_scoop[0],
.num_devs = 2,
.pcmcia_init = spitz_pcmcia_init,
.power_ctrl = spitz_pcmcia_pwr,
};
EXPORT_SYMBOL(spitzscoop_device);
EXPORT_SYMBOL(spitzscoop2_device);
/*
* Spitz 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 spitzssp_device = {
.name = "corgi-ssp",
.dev = {
.parent = &spitzscoop_device.dev,
},
.id = -1,
};
struct corgissp_machinfo spitz_ssp_machinfo = {
.port = 2,
.cs_lcdcon = SPITZ_GPIO_LCDCON_CS,
.cs_ads7846 = SPITZ_GPIO_ADS7846_CS,
.cs_max1111 = SPITZ_GPIO_MAX1111_CS,
.clk_lcdcon = 520,
.clk_ads7846 = 14,
.clk_max1111 = 56,
};
/*
* Spitz Backlight Device
*/
static void spitz_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 struct generic_bl_info spitz_bl_machinfo = {
.name = "corgi-bl",
.default_intensity = 0x1f,
.limit_mask = 0x0b,
.max_intensity = 0x2f,
.kick_battery = spitz_bl_kick_battery,
};
static struct platform_device spitzbl_device = {
.name = "generic-bl",
.dev = {
.platform_data = &spitz_bl_machinfo,
},
.id = -1,
};
/*
* Spitz Keyboard Device
*/
static struct platform_device spitzkbd_device = {
.name = "spitz-keyboard",
.id = -1,
};
/*
* Spitz LEDs
*/
static struct platform_device spitzled_device = {
.name = "spitz-led",
.id = -1,
};
/*
* Spitz 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 struct device *spitz_pxafb_dev;
static int is_pxafb_device(struct device * dev, void * data)
{
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
}
static unsigned long spitz_get_hsync_invperiod(void)
{
#ifdef CONFIG_FB_PXA
if (!spitz_pxafb_dev) {
spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
if (!spitz_pxafb_dev)
return 0;
}
if (!get_hsync_invperiod)
get_hsync_invperiod = symbol_get(pxafb_get_hsync_time);
if (!get_hsync_invperiod)
#endif
return 0;
return get_hsync_invperiod(spitz_pxafb_dev);
}
static void spitz_put_hsync(void)
{
put_device(spitz_pxafb_dev);
if (get_hsync_invperiod)
symbol_put(pxafb_get_hsync_time);
spitz_pxafb_dev = NULL;
get_hsync_invperiod = NULL;
}
static void spitz_wait_hsync(void)
{
sharpsl_wait_sync(SPITZ_GPIO_HSYNC);
}
static struct resource spitzts_resources[] = {
[0] = {
.start = SPITZ_IRQ_GPIO_TP_INT,
.end = SPITZ_IRQ_GPIO_TP_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct corgits_machinfo spitz_ts_machinfo = {
.get_hsync_invperiod = spitz_get_hsync_invperiod,
.put_hsync = spitz_put_hsync,
.wait_hsync = spitz_wait_hsync,
};
static struct platform_device spitzts_device = {
.name = "corgi-ts",
.dev = {
.parent = &spitzssp_device.dev,
.platform_data = &spitz_ts_machinfo,
},
.id = -1,
.num_resources = ARRAY_SIZE(spitzts_resources),
.resource = spitzts_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 spitz_mci_platform_data;
static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, void *data)
{
int err;
/* setup GPIO for PXA27x MMC controller */
pxa_gpio_mode(GPIO32_MMCCLK_MD);
pxa_gpio_mode(GPIO112_MMCCMD_MD);
pxa_gpio_mode(GPIO92_MMCDAT0_MD);
pxa_gpio_mode(GPIO109_MMCDAT1_MD);
pxa_gpio_mode(GPIO110_MMCDAT2_MD);
pxa_gpio_mode(GPIO111_MMCDAT3_MD);
pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (err)
printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
return err;
}
static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if (( 1 << vdd) & p_d->ocr_mask)
spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
else
spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
}
static int spitz_mci_get_ro(struct device *dev)
{
return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
}
static void spitz_mci_exit(struct device *dev, void *data)
{
free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
}
static struct pxamci_platform_data spitz_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = spitz_mci_init,
.get_ro = spitz_mci_get_ro,
.setpower = spitz_mci_setpower,
.exit = spitz_mci_exit,
};
/*
* USB Host (OHCI)
*/
static int spitz_ohci_init(struct device *dev)
{
/* Only Port 2 is connected */
pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
/* Setup USB Port 2 Output Control Register */
UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
UHCHR = (UHCHR) &
~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
UHCRHDA |= UHCRHDA_NOCP;
return 0;
}
static struct pxaohci_platform_data spitz_ohci_platform_data = {
.port_mode = PMM_NPS_MODE,
.init = spitz_ohci_init,
.power_budget = 150,
};
/*
* Irda
*/
static void spitz_irda_transceiver_mode(struct device *dev, int mode)
{
if (mode & IR_OFF)
set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
else
reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
pxa2xx_transceiver_mode(dev, mode);
}
#ifdef CONFIG_MACH_AKITA
static void akita_irda_transceiver_mode(struct device *dev, int mode)
{
if (mode & IR_OFF)
akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
else
akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
pxa2xx_transceiver_mode(dev, mode);
}
#endif
static struct pxaficp_platform_data spitz_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_OFF,
.transceiver_mode = spitz_irda_transceiver_mode,
};
/*
* Spitz PXA Framebuffer
*/
static void spitz_lcd_power(int on, struct fb_var_screeninfo *var)
{
if (on)
corgi_lcdtg_hw_init(var->xres);
else
corgi_lcdtg_suspend();
}
static struct pxafb_mode_info spitz_pxafb_modes[] = {
{
.pixclock = 19231,
.xres = 480,
.yres = 640,
.bpp = 16,
.hsync_len = 40,
.left_margin = 46,
.right_margin = 125,
.vsync_len = 3,
.upper_margin = 1,
.lower_margin = 0,
.sync = 0,
},{
.pixclock = 134617,
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 20,
.left_margin = 20,
.right_margin = 46,
.vsync_len = 2,
.upper_margin = 1,
.lower_margin = 0,
.sync = 0,
},
};
static struct pxafb_mach_info spitz_pxafb_info = {
.modes = &spitz_pxafb_modes[0],
.num_modes = 2,
.fixed_modes = 1,
.lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
.lccr3 = LCCR3_PixRsEdg | LCCR3_OutEnH,
.pxafb_lcd_power = spitz_lcd_power,
};
static struct platform_device *devices[] __initdata = {
&spitzscoop_device,
&spitzssp_device,
&spitzkbd_device,
&spitzts_device,
&spitzbl_device,
&spitzled_device,
};
static void spitz_poweroff(void)
{
arm_machine_restart('g');
}
static void spitz_restart(char mode)
{
/* Bootloader magic for a reboot */
if((MSC0 & 0xffff0000) == 0x7ff00000)
MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
spitz_poweroff();
}
static void __init common_init(void)
{
init_gpio_reset(SPITZ_GPIO_ON_RESET);
pm_power_off = spitz_poweroff;
arm_pm_restart = spitz_restart;
PMCR = 0x00;
/* 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(&spitz_ssp_machinfo);
pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
platform_add_devices(devices, ARRAY_SIZE(devices));
pxa_set_mci_info(&spitz_mci_platform_data);
pxa_set_ohci_info(&spitz_ohci_platform_data);
pxa_set_ficp_info(&spitz_ficp_platform_data);
set_pxa_fb_parent(&spitzssp_device.dev);
set_pxa_fb_info(&spitz_pxafb_info);
pxa_set_i2c_info(NULL);
}
#if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
static void spitz_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)
reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
else
set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
if (intensity)
set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
else
reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
}
static void __init spitz_init(void)
{
platform_scoop_config = &spitz_pcmcia_config;
spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
common_init();
platform_device_register(&spitzscoop2_device);
}
#endif
#ifdef CONFIG_MACH_AKITA
/*
* Akita IO Expander
*/
struct platform_device akitaioexp_device = {
.name = "akita-ioexp",
.id = -1,
};
EXPORT_SYMBOL_GPL(akitaioexp_device);
static void akita_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 IO-Expander */
if (intensity & 0x0020)
akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
else
akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
if (intensity)
akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
else
akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
}
static void __init akita_init(void)
{
spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
/* We just pretend the second element of the array doesn't exist */
spitz_pcmcia_config.num_devs = 1;
platform_scoop_config = &spitz_pcmcia_config;
spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
platform_device_register(&akitaioexp_device);
spitzscoop_device.dev.parent = &akitaioexp_device.dev;
common_init();
}
#endif
static void __init fixup_spitz(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;
mi->bank[0].size = (64*1024*1024);
}
#ifdef CONFIG_MACH_SPITZ
MACHINE_START(SPITZ, "SHARP Spitz")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_spitz,
.map_io = pxa_map_io,
.init_irq = pxa27x_init_irq,
.init_machine = spitz_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_BORZOI
MACHINE_START(BORZOI, "SHARP Borzoi")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_spitz,
.map_io = pxa_map_io,
.init_irq = pxa27x_init_irq,
.init_machine = spitz_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_AKITA
MACHINE_START(AKITA, "SHARP Akita")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_spitz,
.map_io = pxa_map_io,
.init_irq = pxa27x_init_irq,
.init_machine = akita_init,
.timer = &pxa_timer,
MACHINE_END
#endif
