diff options
author | Hans J. Koch <hjk@linutronix.de> | 2010-09-17 16:20:11 (GMT) |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2010-09-17 19:55:09 (GMT) |
commit | 026cec6164901372c3a16b430cd405f0bb6a7c1f (patch) | |
tree | 5ebd65513fea849b47aaf31c58096fd284002f36 /arch | |
parent | 8a41fa3b3c89e5bd3c69219ddeee268bdcce886c (diff) | |
download | linux-026cec6164901372c3a16b430cd405f0bb6a7c1f.tar.xz |
ARM: Add common platform devices for TCC8xxx SoCs
This patch introduces a first set of platform devices for integrated
peripherals of TCC8xxx processors. Drivers for these devices are
available and will be posted in a second step.
Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-tcc8k/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-tcc8k/common.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-tcc8k/devices.c | 239 |
3 files changed, 244 insertions, 1 deletions
diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile index 446c4c9..e92c0d2 100644 --- a/arch/arm/mach-tcc8k/Makefile +++ b/arch/arm/mach-tcc8k/Makefile @@ -3,4 +3,4 @@ # # Common support -obj-y += clock.o irq.o time.o io.o +obj-y += clock.o irq.o time.o io.o devices.o diff --git a/arch/arm/mach-tcc8k/common.h b/arch/arm/mach-tcc8k/common.h index 365f18a..705690a 100644 --- a/arch/arm/mach-tcc8k/common.h +++ b/arch/arm/mach-tcc8k/common.h @@ -1,6 +1,10 @@ #ifndef MACH_TCC8K_COMMON_H #define MACH_TCC8K_COMMON_H +#include <linux/platform_device.h> + +extern struct platform_device tcc_nand_device; + struct clk; extern void tcc_clocks_init(unsigned long xi_freq, unsigned long xti_freq); diff --git a/arch/arm/mach-tcc8k/devices.c b/arch/arm/mach-tcc8k/devices.c new file mode 100644 index 0000000..6722ad7 --- /dev/null +++ b/arch/arm/mach-tcc8k/devices.c @@ -0,0 +1,239 @@ +/* + * linux/arch/arm/mach-tcc8k/devices.c + * + * Copyright (C) Telechips, Inc. + * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de> + * + * Licensed under the terms of GPL v2. + * + */ + +#include <linux/dma-mapping.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> + +#include <asm/mach/map.h> + +#include <mach/tcc8k-regs.h> +#include <mach/irqs.h> + +#include "common.h" + +static u64 tcc8k_dmamask = DMA_BIT_MASK(32); + +#ifdef CONFIG_MTD_NAND_TCC +/* NAND controller */ +static struct resource tcc_nand_resources[] = { + { + .start = (resource_size_t)NFC_BASE, + .end = (resource_size_t)NFC_BASE + 0x7f, + .flags = IORESOURCE_MEM, + }, { + .start = INT_NFC, + .end = INT_NFC, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device tcc_nand_device = { + .name = "tcc_nand", + .id = 0, + .num_resources = ARRAY_SIZE(tcc_nand_resources), + .resource = tcc_nand_resources, +}; +#endif + +#ifdef CONFIG_MMC_TCC8K +/* MMC controller */ +static struct resource tcc8k_mmc0_resource[] = { + { + .start = INT_SD0, + .end = INT_SD0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource tcc8k_mmc1_resource[] = { + { + .start = INT_SD1, + .end = INT_SD1, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device tcc8k_mmc0_device = { + .name = "tcc-mmc", + .id = 0, + .num_resources = ARRAY_SIZE(tcc8k_mmc0_resource), + .resource = tcc8k_mmc0_resource, + .dev = { + .dma_mask = &tcc8k_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + } +}; + +struct platform_device tcc8k_mmc1_device = { + .name = "tcc-mmc", + .id = 1, + .num_resources = ARRAY_SIZE(tcc8k_mmc1_resource), + .resource = tcc8k_mmc1_resource, + .dev = { + .dma_mask = &tcc8k_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + } +}; + +static inline void tcc8k_init_mmc(void) +{ + u32 reg = __raw_readl(GPIOPS_BASE + GPIOPS_FS1_OFFS); + + reg |= GPIOPS_FS1_SDH0_BITS | GPIOPS_FS1_SDH1_BITS; + __raw_writel(reg, GPIOPS_BASE + GPIOPS_FS1_OFFS); + + platform_device_register(&tcc8k_mmc0_device); + platform_device_register(&tcc8k_mmc1_device); +} +#else +static inline void tcc8k_init_mmc(void) { } +#endif + +#ifdef CONFIG_USB_OHCI_HCD +static int tcc8k_ohci_init(struct device *dev) +{ + u32 reg; + + /* Use GPIO PK19 as VBUS control output */ + reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS0_OFFS); + reg &= ~(1 << 19); + __raw_writel(reg, GPIOPK_BASE + GPIOPK_FS0_OFFS); + reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS1_OFFS); + reg &= ~(1 << 19); + __raw_writel(reg, GPIOPK_BASE + GPIOPK_FS1_OFFS); + + reg = __raw_readl(GPIOPK_BASE + GPIOPK_DOE_OFFS); + reg |= (1 << 19); + __raw_writel(reg, GPIOPK_BASE + GPIOPK_DOE_OFFS); + /* Turn on VBUS */ + reg = __raw_readl(GPIOPK_BASE + GPIOPK_DAT_OFFS); + reg |= (1 << 19); + __raw_writel(reg, GPIOPK_BASE + GPIOPK_DAT_OFFS); + + return 0; +} + +static struct resource tcc8k_ohci0_resources[] = { + [0] = { + .start = (resource_size_t)USBH0_BASE, + .end = (resource_size_t)USBH0_BASE + 0x5c, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = INT_USBH0, + .end = INT_USBH0, + .flags = IORESOURCE_IRQ, + } +}; + +static struct resource tcc8k_ohci1_resources[] = { + [0] = { + .start = (resource_size_t)USBH1_BASE, + .end = (resource_size_t)USBH1_BASE + 0x5c, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = INT_USBH1, + .end = INT_USBH1, + .flags = IORESOURCE_IRQ, + } +}; + +static struct tccohci_platform_data tcc8k_ohci0_platform_data = { + .controller = 0, + .port_mode = PMM_PERPORT_MODE, + .init = tcc8k_ohci_init, +}; + +static struct tccohci_platform_data tcc8k_ohci1_platform_data = { + .controller = 1, + .port_mode = PMM_PERPORT_MODE, + .init = tcc8k_ohci_init, +}; + +static struct platform_device ohci0_device = { + .name = "tcc-ohci", + .id = 0, + .dev = { + .dma_mask = &tcc8k_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &tcc8k_ohci0_platform_data, + }, + .num_resources = ARRAY_SIZE(tcc8k_ohci0_resources), + .resource = tcc8k_ohci0_resources, +}; + +static struct platform_device ohci1_device = { + .name = "tcc-ohci", + .id = 1, + .dev = { + .dma_mask = &tcc8k_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &tcc8k_ohci1_platform_data, + }, + .num_resources = ARRAY_SIZE(tcc8k_ohci1_resources), + .resource = tcc8k_ohci1_resources, +}; + +static void __init tcc8k_init_usbhost(void) +{ + platform_device_register(&ohci0_device); + platform_device_register(&ohci1_device); +} +#else +static void __init tcc8k_init_usbhost(void) { } +#endif + +/* USB device controller*/ +#ifdef CONFIG_USB_GADGET_TCC8K +static struct resource udc_resources[] = { + [0] = { + .start = INT_USBD, + .end = INT_USBD, + .flags = IORESOURCE_IRQ, + }, + [1] = { + .start = INT_UDMA, + .end = INT_UDMA, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device tcc8k_udc_device = { + .name = "tcc-udc", + .id = 0, + .resource = udc_resources, + .num_resources = ARRAY_SIZE(udc_resources), + .dev = { + .dma_mask = &tcc8k_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +static void __init tcc8k_init_usb_gadget(void) +{ + platform_device_register(&tcc8k_udc_device); +} +#else +static void __init tcc8k_init_usb_gadget(void) { } +#endif /* CONFIG_USB_GADGET_TCC83X */ + +static int __init tcc8k_init_devices(void) +{ + tcc8k_init_mmc(); + tcc8k_init_usbhost(); + tcc8k_init_usb_gadget(); + return 0; +} + +arch_initcall(tcc8k_init_devices); 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