From 8f58de7c3932f659fff3b4e5fc14ca8ccf8ec873 Mon Sep 17 00:00:00 2001 From: eric miao Date: Wed, 19 Dec 2007 17:14:02 +0800 Subject: [PATCH] [ARM] pxa: create arch/arm/mach-pxa/device.c for all on-chip devices Considering that generic.c is getting more and more bloated by device information, moving that part out side will be much cleaner. Signed-off-by: eric miao Signed-off-by: Russell King --- arch/arm/mach-pxa/Makefile | 2 +- arch/arm/mach-pxa/{generic.c => devices.c} | 224 ------- arch/arm/mach-pxa/generic.c | 1004 +++++++--------------------- 3 files changed, 229 insertions(+), 1001 deletions(-) copy arch/arm/mach-pxa/{generic.c => devices.c} (68%) rewrite arch/arm/mach-pxa/generic.c (67%) diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 3133dc4eaa7..db18c8de7d5 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -3,7 +3,7 @@ # # Common support (must be linked before board specific support) -obj-y += clock.o generic.o irq.o dma.o time.o +obj-y += clock.o devices.o generic.o irq.o dma.o time.o obj-$(CONFIG_PXA25x) += pxa25x.o obj-$(CONFIG_PXA27x) += pxa27x.o obj-$(CONFIG_PXA3xx) += pxa3xx.o mfp.o diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/devices.c similarity index 68% copy from arch/arm/mach-pxa/generic.c copy to arch/arm/mach-pxa/devices.c index a8d88704c8d..75949eb3b7b 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/devices.c @@ -1,38 +1,9 @@ -/* - * 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 @@ -41,200 +12,6 @@ #include #include "devices.h" -#include "generic.h" - -/* - * Get the clock frequency as reflected by CCCR and the turbo flag. - * We assume these values have been applied via a fcs. - * If info is not 0 we also display the current settings. - */ -unsigned int get_clk_frequency_khz(int info) -{ - if (cpu_is_pxa21x() || cpu_is_pxa25x()) - return pxa25x_get_clk_frequency_khz(info); - else if (cpu_is_pxa27x()) - return pxa27x_get_clk_frequency_khz(info); - else - return pxa3xx_get_clk_frequency_khz(info); -} -EXPORT_SYMBOL(get_clk_frequency_khz); - -/* - * Return the current memory clock frequency in units of 10kHz - */ -unsigned int get_memclk_frequency_10khz(void) -{ - if (cpu_is_pxa21x() || cpu_is_pxa25x()) - return pxa25x_get_memclk_frequency_10khz(); - else if (cpu_is_pxa27x()) - return pxa27x_get_memclk_frequency_10khz(); - else - return pxa3xx_get_memclk_frequency_10khz(); -} -EXPORT_SYMBOL(get_memclk_frequency_10khz); - -/* - * Handy function to set GPIO alternate functions - */ -int pxa_last_gpio; - -int 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; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - 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); - - return 0; -} - -EXPORT_SYMBOL(pxa_gpio_mode); - -int gpio_direction_input(unsigned gpio) -{ - unsigned long flags; - u32 mask; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - mask = GPIO_bit(gpio); - local_irq_save(flags); - GPDR(gpio) &= ~mask; - local_irq_restore(flags); - - return 0; -} -EXPORT_SYMBOL(gpio_direction_input); - -int gpio_direction_output(unsigned gpio, int value) -{ - unsigned long flags; - u32 mask; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - mask = GPIO_bit(gpio); - local_irq_save(flags); - if (value) - GPSR(gpio) = mask; - else - GPCR(gpio) = mask; - GPDR(gpio) |= mask; - local_irq_restore(flags); - - return 0; -} -EXPORT_SYMBOL(gpio_direction_output); - -/* - * Return GPIO level - */ -int pxa_gpio_get_value(unsigned gpio) -{ - return __gpio_get_value(gpio); -} - -EXPORT_SYMBOL(pxa_gpio_get_value); - -/* - * Set output GPIO level - */ -void pxa_gpio_set_value(unsigned gpio, int value) -{ - __gpio_set_value(gpio, value); -} - -EXPORT_SYMBOL(pxa_gpio_set_value); - -/* - * 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 |= (1 << clock); - else - CKEN &= ~(1 << 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); -} - void __init pxa_register_device(struct platform_device *dev, void *data) { @@ -247,7 +24,6 @@ void __init pxa_register_device(struct platform_device *dev, void *data) dev_err(&dev->dev, "unable to register device: %d\n", ret); } - static struct resource pxamci_resources[] = { [0] = { .start = 0x41100000, diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c dissimilarity index 67% index a8d88704c8d..e4dbdbc2fb1 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -1,776 +1,228 @@ -/* - * 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 -#include -#include -#include - -#include "devices.h" -#include "generic.h" - -/* - * Get the clock frequency as reflected by CCCR and the turbo flag. - * We assume these values have been applied via a fcs. - * If info is not 0 we also display the current settings. - */ -unsigned int get_clk_frequency_khz(int info) -{ - if (cpu_is_pxa21x() || cpu_is_pxa25x()) - return pxa25x_get_clk_frequency_khz(info); - else if (cpu_is_pxa27x()) - return pxa27x_get_clk_frequency_khz(info); - else - return pxa3xx_get_clk_frequency_khz(info); -} -EXPORT_SYMBOL(get_clk_frequency_khz); - -/* - * Return the current memory clock frequency in units of 10kHz - */ -unsigned int get_memclk_frequency_10khz(void) -{ - if (cpu_is_pxa21x() || cpu_is_pxa25x()) - return pxa25x_get_memclk_frequency_10khz(); - else if (cpu_is_pxa27x()) - return pxa27x_get_memclk_frequency_10khz(); - else - return pxa3xx_get_memclk_frequency_10khz(); -} -EXPORT_SYMBOL(get_memclk_frequency_10khz); - -/* - * Handy function to set GPIO alternate functions - */ -int pxa_last_gpio; - -int 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; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - 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); - - return 0; -} - -EXPORT_SYMBOL(pxa_gpio_mode); - -int gpio_direction_input(unsigned gpio) -{ - unsigned long flags; - u32 mask; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - mask = GPIO_bit(gpio); - local_irq_save(flags); - GPDR(gpio) &= ~mask; - local_irq_restore(flags); - - return 0; -} -EXPORT_SYMBOL(gpio_direction_input); - -int gpio_direction_output(unsigned gpio, int value) -{ - unsigned long flags; - u32 mask; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - mask = GPIO_bit(gpio); - local_irq_save(flags); - if (value) - GPSR(gpio) = mask; - else - GPCR(gpio) = mask; - GPDR(gpio) |= mask; - local_irq_restore(flags); - - return 0; -} -EXPORT_SYMBOL(gpio_direction_output); - -/* - * Return GPIO level - */ -int pxa_gpio_get_value(unsigned gpio) -{ - return __gpio_get_value(gpio); -} - -EXPORT_SYMBOL(pxa_gpio_get_value); - -/* - * Set output GPIO level - */ -void pxa_gpio_set_value(unsigned gpio, int value) -{ - __gpio_set_value(gpio, value); -} - -EXPORT_SYMBOL(pxa_gpio_set_value); - -/* - * 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 |= (1 << clock); - else - CKEN &= ~(1 << 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); -} - - -void __init pxa_register_device(struct platform_device *dev, void *data) -{ - int ret; - - dev->dev.platform_data = data; - - ret = platform_device_register(dev); - if (ret) - dev_err(&dev->dev, "unable to register device: %d\n", ret); -} - - -static struct resource pxamci_resources[] = { - [0] = { - .start = 0x41100000, - .end = 0x41100fff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_MMC, - .end = IRQ_MMC, - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = 21, - .end = 21, - .flags = IORESOURCE_DMA, - }, - [3] = { - .start = 22, - .end = 22, - .flags = IORESOURCE_DMA, - }, -}; - -static u64 pxamci_dmamask = 0xffffffffUL; - -struct platform_device pxa_device_mci = { - .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) -{ - pxa_register_device(&pxa_device_mci, 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; - -struct platform_device pxa_device_udc = { - .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 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; - -struct platform_device pxa_device_fb = { - .name = "pxa2xx-fb", - .id = -1, - .dev = { - .dma_mask = &fb_dma_mask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(pxafb_resources), - .resource = pxafb_resources, -}; - -void __init set_pxa_fb_info(struct pxafb_mach_info *info) -{ - pxa_register_device(&pxa_device_fb, info); -} - -void __init set_pxa_fb_parent(struct device *parent_dev) -{ - pxa_device_fb.dev.parent = parent_dev; -} - -static struct resource pxa_resource_ffuart[] = { - { - .start = __PREG(FFUART), - .end = __PREG(FFUART) + 35, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_FFUART, - .end = IRQ_FFUART, - .flags = IORESOURCE_IRQ, - } -}; - -struct platform_device pxa_device_ffuart= { - .name = "pxa2xx-uart", - .id = 0, - .resource = pxa_resource_ffuart, - .num_resources = ARRAY_SIZE(pxa_resource_ffuart), -}; - -static struct resource pxa_resource_btuart[] = { - { - .start = __PREG(BTUART), - .end = __PREG(BTUART) + 35, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_BTUART, - .end = IRQ_BTUART, - .flags = IORESOURCE_IRQ, - } -}; - -struct platform_device pxa_device_btuart = { - .name = "pxa2xx-uart", - .id = 1, - .resource = pxa_resource_btuart, - .num_resources = ARRAY_SIZE(pxa_resource_btuart), -}; - -static struct resource pxa_resource_stuart[] = { - { - .start = __PREG(STUART), - .end = __PREG(STUART) + 35, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_STUART, - .end = IRQ_STUART, - .flags = IORESOURCE_IRQ, - } -}; - -struct platform_device pxa_device_stuart = { - .name = "pxa2xx-uart", - .id = 2, - .resource = pxa_resource_stuart, - .num_resources = ARRAY_SIZE(pxa_resource_stuart), -}; - -static struct resource pxa_resource_hwuart[] = { - { - .start = __PREG(HWUART), - .end = __PREG(HWUART) + 47, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_HWUART, - .end = IRQ_HWUART, - .flags = IORESOURCE_IRQ, - } -}; - -struct platform_device pxa_device_hwuart = { - .name = "pxa2xx-uart", - .id = 3, - .resource = pxa_resource_hwuart, - .num_resources = ARRAY_SIZE(pxa_resource_hwuart), -}; - -static struct resource pxai2c_resources[] = { - { - .start = 0x40301680, - .end = 0x403016a3, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_I2C, - .end = IRQ_I2C, - .flags = IORESOURCE_IRQ, - }, -}; - -struct platform_device pxa_device_i2c = { - .name = "pxa2xx-i2c", - .id = 0, - .resource = pxai2c_resources, - .num_resources = ARRAY_SIZE(pxai2c_resources), -}; - -void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info) -{ - pxa_register_device(&pxa_device_i2c, info); -} - -static struct resource pxai2s_resources[] = { - { - .start = 0x40400000, - .end = 0x40400083, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_I2S, - .end = IRQ_I2S, - .flags = IORESOURCE_IRQ, - }, -}; - -struct platform_device pxa_device_i2s = { - .name = "pxa2xx-i2s", - .id = -1, - .resource = pxai2s_resources, - .num_resources = ARRAY_SIZE(pxai2s_resources), -}; - -static u64 pxaficp_dmamask = ~(u32)0; - -struct platform_device pxa_device_ficp = { - .name = "pxa2xx-ir", - .id = -1, - .dev = { - .dma_mask = &pxaficp_dmamask, - .coherent_dma_mask = 0xffffffff, - }, -}; - -void __init pxa_set_ficp_info(struct pxaficp_platform_data *info) -{ - pxa_register_device(&pxa_device_ficp, info); -} - -struct platform_device pxa_device_rtc = { - .name = "sa1100-rtc", - .id = -1, -}; - -#ifdef CONFIG_PXA25x - -static u64 pxa25x_ssp_dma_mask = DMA_BIT_MASK(32); - -static struct resource pxa25x_resource_ssp[] = { - [0] = { - .start = 0x41000000, - .end = 0x4100001f, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_SSP, - .end = IRQ_SSP, - .flags = IORESOURCE_IRQ, - }, - [2] = { - /* DRCMR for RX */ - .start = 13, - .end = 13, - .flags = IORESOURCE_DMA, - }, - [3] = { - /* DRCMR for TX */ - .start = 14, - .end = 14, - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device pxa25x_device_ssp = { - .name = "pxa25x-ssp", - .id = 0, - .dev = { - .dma_mask = &pxa25x_ssp_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = pxa25x_resource_ssp, - .num_resources = ARRAY_SIZE(pxa25x_resource_ssp), -}; - -static u64 pxa25x_nssp_dma_mask = DMA_BIT_MASK(32); - -static struct resource pxa25x_resource_nssp[] = { - [0] = { - .start = 0x41400000, - .end = 0x4140002f, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_NSSP, - .end = IRQ_NSSP, - .flags = IORESOURCE_IRQ, - }, - [2] = { - /* DRCMR for RX */ - .start = 15, - .end = 15, - .flags = IORESOURCE_DMA, - }, - [3] = { - /* DRCMR for TX */ - .start = 16, - .end = 16, - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device pxa25x_device_nssp = { - .name = "pxa25x-nssp", - .id = 1, - .dev = { - .dma_mask = &pxa25x_nssp_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = pxa25x_resource_nssp, - .num_resources = ARRAY_SIZE(pxa25x_resource_nssp), -}; - -static u64 pxa25x_assp_dma_mask = DMA_BIT_MASK(32); - -static struct resource pxa25x_resource_assp[] = { - [0] = { - .start = 0x41500000, - .end = 0x4150002f, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_ASSP, - .end = IRQ_ASSP, - .flags = IORESOURCE_IRQ, - }, - [2] = { - /* DRCMR for RX */ - .start = 23, - .end = 23, - .flags = IORESOURCE_DMA, - }, - [3] = { - /* DRCMR for TX */ - .start = 24, - .end = 24, - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device pxa25x_device_assp = { - /* ASSP is basically equivalent to NSSP */ - .name = "pxa25x-nssp", - .id = 2, - .dev = { - .dma_mask = &pxa25x_assp_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = pxa25x_resource_assp, - .num_resources = ARRAY_SIZE(pxa25x_resource_assp), -}; -#endif /* CONFIG_PXA25x */ - -#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) - -static u64 pxa27x_ssp1_dma_mask = DMA_BIT_MASK(32); - -static struct resource pxa27x_resource_ssp1[] = { - [0] = { - .start = 0x41000000, - .end = 0x4100003f, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_SSP, - .end = IRQ_SSP, - .flags = IORESOURCE_IRQ, - }, - [2] = { - /* DRCMR for RX */ - .start = 13, - .end = 13, - .flags = IORESOURCE_DMA, - }, - [3] = { - /* DRCMR for TX */ - .start = 14, - .end = 14, - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device pxa27x_device_ssp1 = { - .name = "pxa27x-ssp", - .id = 0, - .dev = { - .dma_mask = &pxa27x_ssp1_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = pxa27x_resource_ssp1, - .num_resources = ARRAY_SIZE(pxa27x_resource_ssp1), -}; - -static u64 pxa27x_ssp2_dma_mask = DMA_BIT_MASK(32); - -static struct resource pxa27x_resource_ssp2[] = { - [0] = { - .start = 0x41700000, - .end = 0x4170003f, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_SSP2, - .end = IRQ_SSP2, - .flags = IORESOURCE_IRQ, - }, - [2] = { - /* DRCMR for RX */ - .start = 15, - .end = 15, - .flags = IORESOURCE_DMA, - }, - [3] = { - /* DRCMR for TX */ - .start = 16, - .end = 16, - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device pxa27x_device_ssp2 = { - .name = "pxa27x-ssp", - .id = 1, - .dev = { - .dma_mask = &pxa27x_ssp2_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = pxa27x_resource_ssp2, - .num_resources = ARRAY_SIZE(pxa27x_resource_ssp2), -}; - -static u64 pxa27x_ssp3_dma_mask = DMA_BIT_MASK(32); - -static struct resource pxa27x_resource_ssp3[] = { - [0] = { - .start = 0x41900000, - .end = 0x4190003f, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_SSP3, - .end = IRQ_SSP3, - .flags = IORESOURCE_IRQ, - }, - [2] = { - /* DRCMR for RX */ - .start = 66, - .end = 66, - .flags = IORESOURCE_DMA, - }, - [3] = { - /* DRCMR for TX */ - .start = 67, - .end = 67, - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device pxa27x_device_ssp3 = { - .name = "pxa27x-ssp", - .id = 2, - .dev = { - .dma_mask = &pxa27x_ssp3_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = pxa27x_resource_ssp3, - .num_resources = ARRAY_SIZE(pxa27x_resource_ssp3), -}; -#endif /* CONFIG_PXA27x || CONFIG_PXA3xx */ - -#ifdef CONFIG_PXA3xx -static u64 pxa3xx_ssp4_dma_mask = DMA_BIT_MASK(32); - -static struct resource pxa3xx_resource_ssp4[] = { - [0] = { - .start = 0x41a00000, - .end = 0x41a0003f, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_SSP4, - .end = IRQ_SSP4, - .flags = IORESOURCE_IRQ, - }, - [2] = { - /* DRCMR for RX */ - .start = 2, - .end = 2, - .flags = IORESOURCE_DMA, - }, - [3] = { - /* DRCMR for TX */ - .start = 3, - .end = 3, - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device pxa3xx_device_ssp4 = { - /* PXA3xx SSP is basically equivalent to PXA27x */ - .name = "pxa27x-ssp", - .id = 3, - .dev = { - .dma_mask = &pxa3xx_ssp4_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = pxa3xx_resource_ssp4, - .num_resources = ARRAY_SIZE(pxa3xx_resource_ssp4), -}; -#endif /* CONFIG_PXA3xx */ +/* + * 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 "generic.h" + +/* + * Get the clock frequency as reflected by CCCR and the turbo flag. + * We assume these values have been applied via a fcs. + * If info is not 0 we also display the current settings. + */ +unsigned int get_clk_frequency_khz(int info) +{ + if (cpu_is_pxa21x() || cpu_is_pxa25x()) + return pxa25x_get_clk_frequency_khz(info); + else if (cpu_is_pxa27x()) + return pxa27x_get_clk_frequency_khz(info); + else + return pxa3xx_get_clk_frequency_khz(info); +} +EXPORT_SYMBOL(get_clk_frequency_khz); + +/* + * Return the current memory clock frequency in units of 10kHz + */ +unsigned int get_memclk_frequency_10khz(void) +{ + if (cpu_is_pxa21x() || cpu_is_pxa25x()) + return pxa25x_get_memclk_frequency_10khz(); + else if (cpu_is_pxa27x()) + return pxa27x_get_memclk_frequency_10khz(); + else + return pxa3xx_get_memclk_frequency_10khz(); +} +EXPORT_SYMBOL(get_memclk_frequency_10khz); + +/* + * Handy function to set GPIO alternate functions + */ +int pxa_last_gpio; + +int 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; + + if (gpio > pxa_last_gpio) + return -EINVAL; + + 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); + + return 0; +} + +EXPORT_SYMBOL(pxa_gpio_mode); + +int gpio_direction_input(unsigned gpio) +{ + unsigned long flags; + u32 mask; + + if (gpio > pxa_last_gpio) + return -EINVAL; + + mask = GPIO_bit(gpio); + local_irq_save(flags); + GPDR(gpio) &= ~mask; + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(gpio_direction_input); + +int gpio_direction_output(unsigned gpio, int value) +{ + unsigned long flags; + u32 mask; + + if (gpio > pxa_last_gpio) + return -EINVAL; + + mask = GPIO_bit(gpio); + local_irq_save(flags); + if (value) + GPSR(gpio) = mask; + else + GPCR(gpio) = mask; + GPDR(gpio) |= mask; + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(gpio_direction_output); + +/* + * Return GPIO level + */ +int pxa_gpio_get_value(unsigned gpio) +{ + return __gpio_get_value(gpio); +} + +EXPORT_SYMBOL(pxa_gpio_get_value); + +/* + * Set output GPIO level + */ +void pxa_gpio_set_value(unsigned gpio, int value) +{ + __gpio_set_value(gpio, value); +} + +EXPORT_SYMBOL(pxa_gpio_set_value); + +/* + * 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 |= (1 << clock); + else + CKEN &= ~(1 << 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); +} -- 2.11.4.GIT