| /* |
| * 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 <asm/arch/ohci.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 irq_chip mainstone_irq_chip = { |
| .name = "FPGA", |
| .ack = mainstone_mask_irq, |
| .mask = mainstone_mask_irq, |
| .unmask = mainstone_unmask_irq, |
| }; |
| |
| static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc) |
| { |
| 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); |
| } |
| 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); |
| if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14)) |
| set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN); |
| else |
| 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(struct snd_pcm_substream *substream, void *priv) |
| { |
| if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF; |
| return 0; |
| } |
| |
| static void mst_audio_shutdown(struct snd_pcm_substream *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_mode_info toshiba_ltm04c380k_mode = { |
| .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, |
| }; |
| |
| static struct pxafb_mode_info toshiba_ltm035a776c_mode = { |
| .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, |
| }; |
| |
| static struct pxafb_mach_info mainstone_pxafb_info = { |
| .num_modes = 1, |
| .lccr0 = LCCR0_Act, |
| .lccr3 = LCCR3_PCP, |
| .pxafb_backlight_power = mainstone_backlight_power, |
| }; |
| |
| static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_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); |
| |
| /* 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, IRQF_DISABLED, |
| "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 int mainstone_ohci_init(struct device *dev) |
| { |
| /* setup Port1 GPIO pin. */ |
| pxa_gpio_mode( 88 | GPIO_ALT_FN_1_IN); /* USBHPWR1 */ |
| pxa_gpio_mode( 89 | GPIO_ALT_FN_2_OUT); /* USBHPEN1 */ |
| |
| /* Set the Power Control Polarity Low and Power Sense |
| Polarity Low to active low. */ |
| UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) & |
| ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE); |
| |
| return 0; |
| } |
| |
| static struct pxaohci_platform_data mainstone_ohci_platform_data = { |
| .port_mode = PMM_PERPORT_MODE, |
| .init = mainstone_ohci_init, |
| }; |
| |
| 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); |
| |
| /* system bus arbiter setting |
| * - Core_Park |
| * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4 |
| */ |
| ARB_CNTRL = ARB_CORE_PARK | 0x234; |
| |
| /* |
| * 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) |
| mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode; |
| else |
| mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode; |
| |
| set_pxa_fb_info(&mainstone_pxafb_info); |
| |
| pxa_set_mci_info(&mainstone_mci_platform_data); |
| pxa_set_ficp_info(&mainstone_ficp_platform_data); |
| pxa_set_ohci_info(&mainstone_ohci_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_io = 0x40000000, |
| .boot_params = 0xa0000100, /* BLOB boot parameter setting */ |
| .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 |