/* * linux/arch/arm/mach-pxa/generic.c * * Author: Nicolas Pitre * Created: Jun 15, 2001 * Copyright: MontaVista Software Inc. * * Code common to all PXA machines. * * 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. * * Since this file should be linked before any other machine specific file, * the __initcall() here will be executed first. This serves as default * initialization stuff for PXA machines which can be overridden later if * need be. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "generic.h" /* * Handy function to set GPIO alternate functions */ void pxa_gpio_mode(int gpio_mode) { unsigned long flags; int gpio = gpio_mode & GPIO_MD_MASK_NR; int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; int gafr; local_irq_save(flags); if (gpio_mode & GPIO_DFLT_LOW) GPCR(gpio) = GPIO_bit(gpio); else if (gpio_mode & GPIO_DFLT_HIGH) GPSR(gpio) = GPIO_bit(gpio); if (gpio_mode & GPIO_MD_MASK_DIR) GPDR(gpio) |= GPIO_bit(gpio); else GPDR(gpio) &= ~GPIO_bit(gpio); gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2)); GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2)); local_irq_restore(flags); } EXPORT_SYMBOL(pxa_gpio_mode); /* * Routine to safely enable or disable a clock in the CKEN */ void pxa_set_cken(int clock, int enable) { unsigned long flags; local_irq_save(flags); if (enable) CKEN |= clock; else CKEN &= ~clock; local_irq_restore(flags); } EXPORT_SYMBOL(pxa_set_cken); /* * Intel PXA2xx internal register mapping. * * Note 1: not all PXA2xx variants implement all those addresses. * * Note 2: virtual 0xfffe0000-0xffffffff is reserved for the vector table * and cache flush area. */ static struct map_desc standard_io_desc[] __initdata = { { /* Devs */ .virtual = 0xf2000000, .pfn = __phys_to_pfn(0x40000000), .length = 0x02000000, .type = MT_DEVICE }, { /* LCD */ .virtual = 0xf4000000, .pfn = __phys_to_pfn(0x44000000), .length = 0x00100000, .type = MT_DEVICE }, { /* Mem Ctl */ .virtual = 0xf6000000, .pfn = __phys_to_pfn(0x48000000), .length = 0x00100000, .type = MT_DEVICE }, { /* USB host */ .virtual = 0xf8000000, .pfn = __phys_to_pfn(0x4c000000), .length = 0x00100000, .type = MT_DEVICE }, { /* Camera */ .virtual = 0xfa000000, .pfn = __phys_to_pfn(0x50000000), .length = 0x00100000, .type = MT_DEVICE }, { /* IMem ctl */ .virtual = 0xfe000000, .pfn = __phys_to_pfn(0x58000000), .length = 0x00100000, .type = MT_DEVICE }, { /* UNCACHED_PHYS_0 */ .virtual = 0xff000000, .pfn = __phys_to_pfn(0x00000000), .length = 0x00100000, .type = MT_DEVICE } }; void __init pxa_map_io(void) { iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); get_clk_frequency_khz(1); } static struct resource pxamci_resources[] = { [0] = { .start = 0x41100000, .end = 0x41100fff, .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_MMC, .end = IRQ_MMC, .flags = IORESOURCE_IRQ, }, }; static u64 pxamci_dmamask = 0xffffffffUL; static struct platform_device pxamci_device = { .name = "pxa2xx-mci", .id = -1, .dev = { .dma_mask = &pxamci_dmamask, .coherent_dma_mask = 0xffffffff, }, .num_resources = ARRAY_SIZE(pxamci_resources), .resource = pxamci_resources, }; void __init pxa_set_mci_info(struct pxamci_platform_data *info) { pxamci_device.dev.platform_data = info; } static struct pxa2xx_udc_mach_info pxa_udc_info; void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info) { memcpy(&pxa_udc_info, info, sizeof *info); } static struct resource pxa2xx_udc_resources[] = { [0] = { .start = 0x40600000, .end = 0x4060ffff, .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_USB, .end = IRQ_USB, .flags = IORESOURCE_IRQ, }, }; static u64 udc_dma_mask = ~(u32)0; static struct platform_device udc_device = { .name = "pxa2xx-udc", .id = -1, .resource = pxa2xx_udc_resources, .num_resources = ARRAY_SIZE(pxa2xx_udc_resources), .dev = { .platform_data = &pxa_udc_info, .dma_mask = &udc_dma_mask, } }; static struct pxafb_mach_info pxa_fb_info; void __init set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info) { memcpy(&pxa_fb_info,hard_pxa_fb_info,sizeof(struct pxafb_mach_info)); } static struct resource pxafb_resources[] = { [0] = { .start = 0x44000000, .end = 0x4400ffff, .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_LCD, .end = IRQ_LCD, .flags = IORESOURCE_IRQ, }, }; static u64 fb_dma_mask = ~(u64)0; static struct platform_device pxafb_device = { .name = "pxa2xx-fb", .id = -1, .dev = { .platform_data = &pxa_fb_info, .dma_mask = &fb_dma_mask, .coherent_dma_mask = 0xffffffff, }, .num_resources = ARRAY_SIZE(pxafb_resources), .resource = pxafb_resources, }; void __init set_pxa_fb_parent(struct device *parent_dev) { pxafb_device.dev.parent = parent_dev; } static struct platform_device ffuart_device = { .name = "pxa2xx-uart", .id = 0, }; static struct platform_device btuart_device = { .name = "pxa2xx-uart", .id = 1, }; static struct platform_device stuart_device = { .name = "pxa2xx-uart", .id = 2, }; static struct resource i2c_resources[] = { { .start = 0x40301680, .end = 0x403016a3, .flags = IORESOURCE_MEM, }, { .start = IRQ_I2C, .end = IRQ_I2C, .flags = IORESOURCE_IRQ, }, }; static struct platform_device i2c_device = { .name = "pxa2xx-i2c", .id = 0, .resource = i2c_resources, .num_resources = ARRAY_SIZE(i2c_resources), }; void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info) { i2c_device.dev.platform_data = info; } static struct resource i2s_resources[] = { { .start = 0x40400000, .end = 0x40400083, .flags = IORESOURCE_MEM, }, { .start = IRQ_I2S, .end = IRQ_I2S, .flags = IORESOURCE_IRQ, }, }; static struct platform_device i2s_device = { .name = "pxa2xx-i2s", .id = -1, .resource = i2c_resources, .num_resources = ARRAY_SIZE(i2s_resources), }; static struct platform_device *devices[] __initdata = { &pxamci_device, &udc_device, &pxafb_device, &ffuart_device, &btuart_device, &stuart_device, &i2c_device, &i2s_device, }; static int __init pxa_init(void) { return platform_add_devices(devices, ARRAY_SIZE(devices)); } subsys_initcall(pxa_init);