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linux/arch/arm/mach-pxa/mainstone.c
Todd Poynor 74ec71e161 [ARM] 3087/1: PXA2xx flash platform device conversion 
Patch from Todd Poynor

Add platform devices for flash to Lubbock and Mainstone board files.
Once in place, the two existing mtd map drivers for the boards will be
converted to use a single pxa2xx map driver in the linux-mtd tree.
Take 4: flash_platform_data .map_name vs. .name cleaned up, resync with
merged irda patch context.

Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-04 17:15:45 +00:00

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/*
* linux/arch/arm/mach-pxa/mainstone.c
*
* Support for the Intel HCDDBBVA0 Development Platform.
* (go figure how they came up with such name...)
*
* Author: Nicolas Pitre
* Created: Nov 05, 2002
* Copyright: MontaVista Software Inc.
*
* 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/init.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/bitops.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/mainstone.h>
#include <asm/arch/audio.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/mmc.h>
#include <asm/arch/irda.h>
#include "generic.h"
static unsigned long mainstone_irq_enabled;
static void mainstone_mask_irq(unsigned int irq)
{
int mainstone_irq = (irq - MAINSTONE_IRQ(0));
MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
}
static void mainstone_unmask_irq(unsigned int irq)
{
int mainstone_irq = (irq - MAINSTONE_IRQ(0));
/* the irq can be acknowledged only if deasserted, so it's done here */
MST_INTSETCLR &= ~(1 << mainstone_irq);
MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
}
static struct irqchip mainstone_irq_chip = {
.ack = mainstone_mask_irq,
.mask = mainstone_mask_irq,
.unmask = mainstone_unmask_irq,
};
static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc,
struct pt_regs *regs)
{
unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
do {
GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
if (likely(pending)) {
irq = MAINSTONE_IRQ(0) + __ffs(pending);
desc = irq_desc + irq;
desc_handle_irq(irq, desc, regs);
}
pending = MST_INTSETCLR & mainstone_irq_enabled;
} while (pending);
}
static void __init mainstone_init_irq(void)
{
int irq;
pxa_init_irq();
/* setup extra Mainstone irqs */
for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
set_irq_chip(irq, &mainstone_irq_chip);
set_irq_handler(irq, do_level_IRQ);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
set_irq_flags(MAINSTONE_IRQ(8), 0);
set_irq_flags(MAINSTONE_IRQ(12), 0);
MST_INTMSKENA = 0;
MST_INTSETCLR = 0;
set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
}
#ifdef CONFIG_PM
static int mainstone_irq_resume(struct sys_device *dev)
{
MST_INTMSKENA = mainstone_irq_enabled;
return 0;
}
static struct sysdev_class mainstone_irq_sysclass = {
set_kset_name("cpld_irq"),
.resume = mainstone_irq_resume,
};
static struct sys_device mainstone_irq_device = {
.cls = &mainstone_irq_sysclass,
};
static int __init mainstone_irq_device_init(void)
{
int ret = sysdev_class_register(&mainstone_irq_sysclass);
if (ret == 0)
ret = sysdev_register(&mainstone_irq_device);
return ret;
}
device_initcall(mainstone_irq_device_init);
#endif
static struct resource smc91x_resources[] = {
[0] = {
.start = (MST_ETH_PHYS + 0x300),
.end = (MST_ETH_PHYS + 0xfffff),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = MAINSTONE_IRQ(3),
.end = MAINSTONE_IRQ(3),
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
};
static int mst_audio_startup(snd_pcm_substream_t *substream, void *priv)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
return 0;
}
static void mst_audio_shutdown(snd_pcm_substream_t *substream, void *priv)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
}
static long mst_audio_suspend_mask;
static void mst_audio_suspend(void *priv)
{
mst_audio_suspend_mask = MST_MSCWR2;
MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
}
static void mst_audio_resume(void *priv)
{
MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
}
static pxa2xx_audio_ops_t mst_audio_ops = {
.startup = mst_audio_startup,
.shutdown = mst_audio_shutdown,
.suspend = mst_audio_suspend,
.resume = mst_audio_resume,
};
static struct platform_device mst_audio_device = {
.name = "pxa2xx-ac97",
.id = -1,
.dev = { .platform_data = &mst_audio_ops },
};
static struct resource flash_resources[] = {
[0] = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PXA_CS1_PHYS,
.end = PXA_CS1_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
};
static struct mtd_partition mainstoneflash0_partitions[] = {
{
.name = "Bootloader",
.size = 0x00040000,
.offset = 0,
.mask_flags = MTD_WRITEABLE /* force read-only */
},{
.name = "Kernel",
.size = 0x00400000,
.offset = 0x00040000,
},{
.name = "Filesystem",
.size = MTDPART_SIZ_FULL,
.offset = 0x00440000
}
};
static struct flash_platform_data mst_flash_data[2] = {
{
.map_name = "cfi_probe",
.parts = mainstoneflash0_partitions,
.nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
}, {
.map_name = "cfi_probe",
.parts = NULL,
.nr_parts = 0,
}
};
static struct platform_device mst_flash_device[2] = {
{
.name = "pxa2xx-flash",
.id = 0,
.dev = {
.platform_data = &mst_flash_data[0],
},
.resource = &flash_resources[0],
.num_resources = 1,
},
{
.name = "pxa2xx-flash",
.id = 1,
.dev = {
.platform_data = &mst_flash_data[1],
},
.resource = &flash_resources[1],
.num_resources = 1,
},
};
static void mainstone_backlight_power(int on)
{
if (on) {
pxa_gpio_mode(GPIO16_PWM0_MD);
pxa_set_cken(CKEN0_PWM0, 1);
PWM_CTRL0 = 0;
PWM_PWDUTY0 = 0x3ff;
PWM_PERVAL0 = 0x3ff;
} else {
PWM_CTRL0 = 0;
PWM_PWDUTY0 = 0x0;
PWM_PERVAL0 = 0x3FF;
pxa_set_cken(CKEN0_PWM0, 0);
}
}
static struct pxafb_mach_info toshiba_ltm04c380k __initdata = {
.pixclock = 50000,
.xres = 640,
.yres = 480,
.bpp = 16,
.hsync_len = 1,
.left_margin = 0x9f,
.right_margin = 1,
.vsync_len = 44,
.upper_margin = 0,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
.lccr0 = LCCR0_Act,
.lccr3 = LCCR3_PCP,
.pxafb_backlight_power = mainstone_backlight_power,
};
static struct pxafb_mach_info toshiba_ltm035a776c __initdata = {
.pixclock = 110000,
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 4,
.left_margin = 8,
.right_margin = 20,
.vsync_len = 3,
.upper_margin = 1,
.lower_margin = 10,
.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
.lccr0 = LCCR0_Act,
.lccr3 = LCCR3_PCP,
.pxafb_backlight_power = mainstone_backlight_power,
};
static int mainstone_mci_init(struct device *dev, irqreturn_t (*mstone_detect_int)(int, void *, struct pt_regs *), 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);
/* make sure SD/Memory Stick multiplexer's signals
* are routed to MMC controller
*/
MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, SA_INTERRUPT,
"MMC card detect", data);
if (err) {
printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
return -1;
}
return 0;
}
static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if (( 1 << vdd) & p_d->ocr_mask) {
printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
} else {
printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
}
}
static void mainstone_mci_exit(struct device *dev, void *data)
{
free_irq(MAINSTONE_MMC_IRQ, data);
}
static struct pxamci_platform_data mainstone_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = mainstone_mci_init,
.setpower = mainstone_mci_setpower,
.exit = mainstone_mci_exit,
};
static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
{
unsigned long flags;
local_irq_save(flags);
if (mode & IR_SIRMODE) {
MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
} else if (mode & IR_FIRMODE) {
MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
}
if (mode & IR_OFF) {
MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
} else {
MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
}
local_irq_restore(flags);
}
static struct pxaficp_platform_data mainstone_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
.transceiver_mode = mainstone_irda_transceiver_mode,
};
static struct platform_device *platform_devices[] __initdata = {
&smc91x_device,
&mst_audio_device,
&mst_flash_device[0],
&mst_flash_device[1],
};
static void __init mainstone_init(void)
{
int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
mst_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
mst_flash_data[1].width = 4;
/* Compensate for SW7 which swaps the flash banks */
mst_flash_data[SW7].name = "processor-flash";
mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
mst_flash_data[0].name);
/*
* On Mainstone, we route AC97_SYSCLK via GPIO45 to
* the audio daughter card
*/
pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
/* reading Mainstone's "Virtual Configuration Register"
might be handy to select LCD type here */
if (0)
set_pxa_fb_info(&toshiba_ltm04c380k);
else
set_pxa_fb_info(&toshiba_ltm035a776c);
pxa_set_mci_info(&mainstone_mci_platform_data);
pxa_set_ficp_info(&mainstone_ficp_platform_data);
}
static struct map_desc mainstone_io_desc[] __initdata = {
{ /* CPLD */
.virtual = MST_FPGA_VIRT,
.pfn = __phys_to_pfn(MST_FPGA_PHYS),
.length = 0x00100000,
.type = MT_DEVICE
}
};
static void __init mainstone_map_io(void)
{
pxa_map_io();
iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
/* initialize sleep mode regs (wake-up sources, etc) */
PGSR0 = 0x00008800;
PGSR1 = 0x00000002;
PGSR2 = 0x0001FC00;
PGSR3 = 0x00001F81;
PWER = 0xC0000002;
PRER = 0x00000002;
PFER = 0x00000002;
/* for use I SRAM as framebuffer. */
PSLR |= 0xF04;
PCFR = 0x66;
/* For Keypad wakeup. */
KPC &=~KPC_ASACT;
KPC |=KPC_AS;
PKWR = 0x000FD000;
/* Need read PKWR back after set it. */
PKWR;
}
MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
/* Maintainer: MontaVista Software Inc. */
.phys_ram = 0xa0000000,
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.map_io = mainstone_map_io,
.init_irq = mainstone_init_irq,
.timer = &pxa_timer,
.init_machine = mainstone_init,
MACHINE_END
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