/* * linux/arch/arm/mach-pxa/lpd270.c * * Support for the LogicPD PXA270 Card Engine. * Derived from the mainstone code, which carries these notices: * * 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/lpd270.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 int lpd270_irq_enabled; static void lpd270_mask_irq(unsigned int irq) { int lpd270_irq = irq - LPD270_IRQ(0); __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS); lpd270_irq_enabled &= ~(1 << lpd270_irq); __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK); } static void lpd270_unmask_irq(unsigned int irq) { int lpd270_irq = irq - LPD270_IRQ(0); lpd270_irq_enabled |= 1 << lpd270_irq; __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK); } static struct irqchip lpd270_irq_chip = { .ack = lpd270_mask_irq, .mask = lpd270_mask_irq, .unmask = lpd270_unmask_irq, }; static void lpd270_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) { unsigned long pending; pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled; do { GEDR(0) = GPIO_bit(0); /* clear useless edge notification */ if (likely(pending)) { irq = LPD270_IRQ(0) + __ffs(pending); desc = irq_desc + irq; desc_handle_irq(irq, desc, regs); pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled; } } while (pending); } static void __init lpd270_init_irq(void) { int irq; pxa_init_irq(); __raw_writew(0, LPD270_INT_MASK); __raw_writew(0, LPD270_INT_STATUS); /* setup extra LogicPD PXA270 irqs */ for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) { set_irq_chip(irq, &lpd270_irq_chip); set_irq_handler(irq, do_level_IRQ); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } set_irq_chained_handler(IRQ_GPIO(0), lpd270_irq_handler); set_irq_type(IRQ_GPIO(0), IRQT_FALLING); } #ifdef CONFIG_PM static int lpd270_irq_resume(struct sys_device *dev) { __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK); return 0; } static struct sysdev_class lpd270_irq_sysclass = { set_kset_name("cpld_irq"), .resume = lpd270_irq_resume, }; static struct sys_device lpd270_irq_device = { .cls = &lpd270_irq_sysclass, }; static int __init lpd270_irq_device_init(void) { int ret = sysdev_class_register(&lpd270_irq_sysclass); if (ret == 0) ret = sysdev_register(&lpd270_irq_device); return ret; } device_initcall(lpd270_irq_device_init); #endif static struct resource smc91x_resources[] = { [0] = { .start = LPD270_ETH_PHYS, .end = (LPD270_ETH_PHYS + 0xfffff), .flags = IORESOURCE_MEM, }, [1] = { .start = LPD270_ETHERNET_IRQ, .end = LPD270_ETHERNET_IRQ, .flags = IORESOURCE_IRQ, }, }; static struct platform_device smc91x_device = { .name = "smc91x", .id = 0, .num_resources = ARRAY_SIZE(smc91x_resources), .resource = smc91x_resources, }; static struct platform_device lpd270_audio_device = { .name = "pxa2xx-ac97", .id = -1, }; static struct resource lpd270_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 lpd270_flash0_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 lpd270_flash_data[2] = { { .name = "processor-flash", .map_name = "cfi_probe", .parts = lpd270_flash0_partitions, .nr_parts = ARRAY_SIZE(lpd270_flash0_partitions), }, { .name = "mainboard-flash", .map_name = "cfi_probe", .parts = NULL, .nr_parts = 0, } }; static struct platform_device lpd270_flash_device[2] = { { .name = "pxa2xx-flash", .id = 0, .dev = { .platform_data = &lpd270_flash_data[0], }, .resource = &lpd270_flash_resources[0], .num_resources = 1, }, { .name = "pxa2xx-flash", .id = 1, .dev = { .platform_data = &lpd270_flash_data[1], }, .resource = &lpd270_flash_resources[1], .num_resources = 1, }, }; static void lpd270_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); } } /* 5.7" TFT QVGA (LoLo display number 1) */ static struct pxafb_mach_info sharp_lq057q3dc02 __initdata = { .pixclock = 100000, .xres = 240, .yres = 320, .bpp = 16, .hsync_len = 64, .left_margin = 0x27, .right_margin = 0x09, .vsync_len = 0x04, .upper_margin = 0x08, .lower_margin = 0x14, .sync = 0, .lccr0 = 0x07800080, .lccr3 = 0x04400007, .pxafb_backlight_power = lpd270_backlight_power, }; /* 6.4" TFT VGA (LoLo display number 5) */ static struct pxafb_mach_info sharp_lq64d343 __initdata = { .pixclock = 20000, .xres = 640, .yres = 480, .bpp = 16, .hsync_len = 49, .left_margin = 0x89, .right_margin = 0x19, .vsync_len = 18, .upper_margin = 0x22, .lower_margin = 0, .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, .lccr0 = 0x07800080, .lccr3 = 0x04400001, .pxafb_backlight_power = lpd270_backlight_power, }; /* 3.5" TFT QVGA (LoLo display number 8) */ static struct pxafb_mach_info sharp_lq035q7db02_20 __initdata = { .pixclock = 100000, .xres = 240, .yres = 320, .bpp = 16, .hsync_len = 0x34, .left_margin = 0x09, .right_margin = 0x09, .vsync_len = 0x08, .upper_margin = 0x05, .lower_margin = 0x14, .sync = 0, .lccr0 = 0x07800080, .lccr3 = 0x04400007, .pxafb_backlight_power = lpd270_backlight_power, }; static struct platform_device *platform_devices[] __initdata = { &smc91x_device, &lpd270_audio_device, &lpd270_flash_device[0], &lpd270_flash_device[1], }; static int lpd270_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 lpd270_ohci_platform_data = { .port_mode = PMM_PERPORT_MODE, .init = lpd270_ohci_init, }; static void __init lpd270_init(void) { lpd270_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4; lpd270_flash_data[1].width = 4; /* * System bus arbiter setting: * - Core_Park * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4 */ ARB_CNTRL = ARB_CORE_PARK | 0x234; /* * On LogicPD PXA270, we route AC97_SYSCLK via GPIO45. */ pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD); platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); // set_pxa_fb_info(&sharp_lq057q3dc02); set_pxa_fb_info(&sharp_lq64d343); // set_pxa_fb_info(&sharp_lq035q7db02_20); pxa_set_ohci_info(&lpd270_ohci_platform_data); } static struct map_desc lpd270_io_desc[] __initdata = { { .virtual = LPD270_CPLD_VIRT, .pfn = __phys_to_pfn(LPD270_CPLD_PHYS), .length = LPD270_CPLD_SIZE, .type = MT_DEVICE, }, }; static void __init lpd270_map_io(void) { pxa_map_io(); iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_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 |= 0x00000F04; PCFR = 0x00000066; } MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine") /* Maintainer: Peter Barada */ .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .boot_params = 0xa0000100, .map_io = lpd270_map_io, .init_irq = lpd270_init_irq, .timer = &pxa_timer, .init_machine = lpd270_init, MACHINE_END