forked from Minki/linux
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>
This commit is contained in:
Hans J. Koch
Thomas Gleixner
parent
8a41fa3b3c
commit
026cec6164
@ -3,4 +3,4 @@
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#
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# Common support
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obj-y += clock.o irq.o time.o io.o
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obj-y += clock.o irq.o time.o io.o devices.o
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@ -1,6 +1,10 @@
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#ifndef MACH_TCC8K_COMMON_H
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#define MACH_TCC8K_COMMON_H
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#include <linux/platform_device.h>
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extern struct platform_device tcc_nand_device;
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struct clk;
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extern void tcc_clocks_init(unsigned long xi_freq, unsigned long xti_freq);
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239
arch/arm/mach-tcc8k/devices.c
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239
arch/arm/mach-tcc8k/devices.c
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@ -0,0 +1,239 @@
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/*
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* linux/arch/arm/mach-tcc8k/devices.c
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*
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* Copyright (C) Telechips, Inc.
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* Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
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*
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* Licensed under the terms of GPL v2.
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*
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*/
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#include <linux/dma-mapping.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <asm/mach/map.h>
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#include <mach/tcc8k-regs.h>
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#include <mach/irqs.h>
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#include "common.h"
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static u64 tcc8k_dmamask = DMA_BIT_MASK(32);
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#ifdef CONFIG_MTD_NAND_TCC
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/* NAND controller */
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static struct resource tcc_nand_resources[] = {
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{
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.start = (resource_size_t)NFC_BASE,
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.end = (resource_size_t)NFC_BASE + 0x7f,
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.flags = IORESOURCE_MEM,
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}, {
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.start = INT_NFC,
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.end = INT_NFC,
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.flags = IORESOURCE_IRQ,
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},
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};
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struct platform_device tcc_nand_device = {
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.name = "tcc_nand",
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.id = 0,
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.num_resources = ARRAY_SIZE(tcc_nand_resources),
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.resource = tcc_nand_resources,
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};
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#endif
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#ifdef CONFIG_MMC_TCC8K
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/* MMC controller */
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static struct resource tcc8k_mmc0_resource[] = {
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{
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.start = INT_SD0,
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.end = INT_SD0,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource tcc8k_mmc1_resource[] = {
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{
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.start = INT_SD1,
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.end = INT_SD1,
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.flags = IORESOURCE_IRQ,
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},
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};
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struct platform_device tcc8k_mmc0_device = {
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.name = "tcc-mmc",
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.id = 0,
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.num_resources = ARRAY_SIZE(tcc8k_mmc0_resource),
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.resource = tcc8k_mmc0_resource,
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.dev = {
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.dma_mask = &tcc8k_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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}
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};
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struct platform_device tcc8k_mmc1_device = {
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.name = "tcc-mmc",
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.id = 1,
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.num_resources = ARRAY_SIZE(tcc8k_mmc1_resource),
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.resource = tcc8k_mmc1_resource,
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.dev = {
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.dma_mask = &tcc8k_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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}
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};
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static inline void tcc8k_init_mmc(void)
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{
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u32 reg = __raw_readl(GPIOPS_BASE + GPIOPS_FS1_OFFS);
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reg |= GPIOPS_FS1_SDH0_BITS | GPIOPS_FS1_SDH1_BITS;
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__raw_writel(reg, GPIOPS_BASE + GPIOPS_FS1_OFFS);
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platform_device_register(&tcc8k_mmc0_device);
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platform_device_register(&tcc8k_mmc1_device);
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}
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#else
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static inline void tcc8k_init_mmc(void) { }
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#endif
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#ifdef CONFIG_USB_OHCI_HCD
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static int tcc8k_ohci_init(struct device *dev)
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{
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u32 reg;
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/* Use GPIO PK19 as VBUS control output */
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reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS0_OFFS);
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reg &= ~(1 << 19);
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__raw_writel(reg, GPIOPK_BASE + GPIOPK_FS0_OFFS);
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reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS1_OFFS);
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reg &= ~(1 << 19);
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__raw_writel(reg, GPIOPK_BASE + GPIOPK_FS1_OFFS);
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reg = __raw_readl(GPIOPK_BASE + GPIOPK_DOE_OFFS);
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reg |= (1 << 19);
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__raw_writel(reg, GPIOPK_BASE + GPIOPK_DOE_OFFS);
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/* Turn on VBUS */
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reg = __raw_readl(GPIOPK_BASE + GPIOPK_DAT_OFFS);
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reg |= (1 << 19);
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__raw_writel(reg, GPIOPK_BASE + GPIOPK_DAT_OFFS);
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return 0;
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}
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static struct resource tcc8k_ohci0_resources[] = {
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[0] = {
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.start = (resource_size_t)USBH0_BASE,
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.end = (resource_size_t)USBH0_BASE + 0x5c,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = INT_USBH0,
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.end = INT_USBH0,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct resource tcc8k_ohci1_resources[] = {
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[0] = {
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.start = (resource_size_t)USBH1_BASE,
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.end = (resource_size_t)USBH1_BASE + 0x5c,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = INT_USBH1,
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.end = INT_USBH1,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct tccohci_platform_data tcc8k_ohci0_platform_data = {
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.controller = 0,
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.port_mode = PMM_PERPORT_MODE,
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.init = tcc8k_ohci_init,
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};
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static struct tccohci_platform_data tcc8k_ohci1_platform_data = {
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.controller = 1,
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.port_mode = PMM_PERPORT_MODE,
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.init = tcc8k_ohci_init,
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};
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static struct platform_device ohci0_device = {
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.name = "tcc-ohci",
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.id = 0,
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.dev = {
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.dma_mask = &tcc8k_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &tcc8k_ohci0_platform_data,
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},
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.num_resources = ARRAY_SIZE(tcc8k_ohci0_resources),
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.resource = tcc8k_ohci0_resources,
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};
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static struct platform_device ohci1_device = {
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.name = "tcc-ohci",
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.id = 1,
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.dev = {
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.dma_mask = &tcc8k_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &tcc8k_ohci1_platform_data,
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},
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.num_resources = ARRAY_SIZE(tcc8k_ohci1_resources),
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.resource = tcc8k_ohci1_resources,
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};
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static void __init tcc8k_init_usbhost(void)
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{
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platform_device_register(&ohci0_device);
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platform_device_register(&ohci1_device);
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}
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#else
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static void __init tcc8k_init_usbhost(void) { }
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#endif
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/* USB device controller*/
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#ifdef CONFIG_USB_GADGET_TCC8K
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static struct resource udc_resources[] = {
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[0] = {
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.start = INT_USBD,
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.end = INT_USBD,
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.flags = IORESOURCE_IRQ,
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},
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[1] = {
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.start = INT_UDMA,
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.end = INT_UDMA,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device tcc8k_udc_device = {
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.name = "tcc-udc",
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.id = 0,
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.resource = udc_resources,
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.num_resources = ARRAY_SIZE(udc_resources),
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.dev = {
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.dma_mask = &tcc8k_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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};
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static void __init tcc8k_init_usb_gadget(void)
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{
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platform_device_register(&tcc8k_udc_device);
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}
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#else
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static void __init tcc8k_init_usb_gadget(void) { }
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#endif /* CONFIG_USB_GADGET_TCC83X */
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static int __init tcc8k_init_devices(void)
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{
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tcc8k_init_mmc();
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tcc8k_init_usbhost();
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tcc8k_init_usb_gadget();
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return 0;
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}
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arch_initcall(tcc8k_init_devices);
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