![Lee Jones](/assets/img/avatar_default.png)
At the request of Arnd Bergmann this patch moves all SoC platform devices found in sysfs from /sys/devices/platform to /sys/devices/soc<SoCNum>/. It is believed as the devices are SoC specific and a /sys/devices/soc node has recently become available, that this would be a more appropriate place to display the data. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
248 lines
5.6 KiB
C
248 lines
5.6 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2010
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*
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* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
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* License terms: GNU General Public License (GPL) version 2
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*/
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#include <linux/platform_device.h>
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#include <linux/amba/bus.h>
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#include <linux/io.h>
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#include <linux/irq.h>
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#include <asm/mach/map.h>
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#include <asm/pmu.h>
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#include <plat/gpio-nomadik.h>
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#include <mach/hardware.h>
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#include <mach/devices.h>
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#include <mach/setup.h>
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#include <mach/irqs.h>
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#include <mach/usb.h>
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#include "devices-db5500.h"
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#include "ste-dma40-db5500.h"
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static struct map_desc u5500_uart_io_desc[] __initdata = {
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__IO_DEV_DESC(U5500_UART0_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_UART2_BASE, SZ_4K),
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};
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static struct map_desc u5500_io_desc[] __initdata = {
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/* SCU base also covers GIC CPU BASE and TWD with its 4K page */
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__IO_DEV_DESC(U5500_SCU_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_GIC_DIST_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_L2CC_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_MTU0_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_BACKUPRAM0_BASE, SZ_8K),
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__IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
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__IO_DEV_DESC(U5500_PRCMU_TCDM_BASE, SZ_4K),
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};
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static struct resource mbox0_resources[] = {
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{
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.name = "mbox_peer",
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.start = U5500_MBOX0_PEER_START,
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.end = U5500_MBOX0_PEER_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "mbox_local",
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.start = U5500_MBOX0_LOCAL_START,
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.end = U5500_MBOX0_LOCAL_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "mbox_irq",
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.start = MBOX_PAIR0_VIRT_IRQ,
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.end = MBOX_PAIR0_VIRT_IRQ,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct resource mbox1_resources[] = {
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{
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.name = "mbox_peer",
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.start = U5500_MBOX1_PEER_START,
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.end = U5500_MBOX1_PEER_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "mbox_local",
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.start = U5500_MBOX1_LOCAL_START,
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.end = U5500_MBOX1_LOCAL_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "mbox_irq",
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.start = MBOX_PAIR1_VIRT_IRQ,
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.end = MBOX_PAIR1_VIRT_IRQ,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct resource mbox2_resources[] = {
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{
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.name = "mbox_peer",
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.start = U5500_MBOX2_PEER_START,
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.end = U5500_MBOX2_PEER_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "mbox_local",
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.start = U5500_MBOX2_LOCAL_START,
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.end = U5500_MBOX2_LOCAL_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "mbox_irq",
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.start = MBOX_PAIR2_VIRT_IRQ,
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.end = MBOX_PAIR2_VIRT_IRQ,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct platform_device mbox0_device = {
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.id = 0,
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.name = "mbox",
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.resource = mbox0_resources,
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.num_resources = ARRAY_SIZE(mbox0_resources),
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};
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static struct platform_device mbox1_device = {
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.id = 1,
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.name = "mbox",
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.resource = mbox1_resources,
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.num_resources = ARRAY_SIZE(mbox1_resources),
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};
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static struct platform_device mbox2_device = {
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.id = 2,
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.name = "mbox",
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.resource = mbox2_resources,
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.num_resources = ARRAY_SIZE(mbox2_resources),
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};
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static struct platform_device *db5500_platform_devs[] __initdata = {
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&mbox0_device,
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&mbox1_device,
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&mbox2_device,
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};
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static resource_size_t __initdata db5500_gpio_base[] = {
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U5500_GPIOBANK0_BASE,
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U5500_GPIOBANK1_BASE,
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U5500_GPIOBANK2_BASE,
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U5500_GPIOBANK3_BASE,
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U5500_GPIOBANK4_BASE,
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U5500_GPIOBANK5_BASE,
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U5500_GPIOBANK6_BASE,
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U5500_GPIOBANK7_BASE,
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};
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static void __init db5500_add_gpios(struct device *parent)
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{
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struct nmk_gpio_platform_data pdata = {
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/* No custom data yet */
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};
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dbx500_add_gpios(parent, ARRAY_AND_SIZE(db5500_gpio_base),
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IRQ_DB5500_GPIO0, &pdata);
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}
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void __init u5500_map_io(void)
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{
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/*
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* Map the UARTs early so that the DEBUG_LL stuff continues to work.
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*/
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iotable_init(u5500_uart_io_desc, ARRAY_SIZE(u5500_uart_io_desc));
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ux500_map_io();
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iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
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_PRCMU_BASE = __io_address(U5500_PRCMU_BASE);
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}
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static void __init db5500_pmu_init(void)
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{
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struct resource res[] = {
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[0] = {
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.start = IRQ_DB5500_PMU0,
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.end = IRQ_DB5500_PMU0,
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.flags = IORESOURCE_IRQ,
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},
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[1] = {
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.start = IRQ_DB5500_PMU1,
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.end = IRQ_DB5500_PMU1,
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.flags = IORESOURCE_IRQ,
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},
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};
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platform_device_register_simple("arm-pmu", ARM_PMU_DEVICE_CPU,
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res, ARRAY_SIZE(res));
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}
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static int usb_db5500_rx_dma_cfg[] = {
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DB5500_DMA_DEV4_USB_OTG_IEP_1_9,
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DB5500_DMA_DEV5_USB_OTG_IEP_2_10,
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DB5500_DMA_DEV6_USB_OTG_IEP_3_11,
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DB5500_DMA_DEV20_USB_OTG_IEP_4_12,
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DB5500_DMA_DEV21_USB_OTG_IEP_5_13,
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DB5500_DMA_DEV22_USB_OTG_IEP_6_14,
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DB5500_DMA_DEV23_USB_OTG_IEP_7_15,
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DB5500_DMA_DEV38_USB_OTG_IEP_8
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};
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static int usb_db5500_tx_dma_cfg[] = {
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DB5500_DMA_DEV4_USB_OTG_OEP_1_9,
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DB5500_DMA_DEV5_USB_OTG_OEP_2_10,
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DB5500_DMA_DEV6_USB_OTG_OEP_3_11,
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DB5500_DMA_DEV20_USB_OTG_OEP_4_12,
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DB5500_DMA_DEV21_USB_OTG_OEP_5_13,
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DB5500_DMA_DEV22_USB_OTG_OEP_6_14,
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DB5500_DMA_DEV23_USB_OTG_OEP_7_15,
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DB5500_DMA_DEV38_USB_OTG_OEP_8
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};
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static const char *db5500_read_soc_id(void)
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{
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return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
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}
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static struct device * __init db5500_soc_device_init(void)
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{
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const char *soc_id = db5500_read_soc_id();
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return ux500_soc_device_init(soc_id);
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}
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struct device * __init u5500_init_devices(void)
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{
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struct device *parent;
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int i;
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parent = db5500_soc_device_init();
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db5500_add_gpios(parent);
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db5500_pmu_init();
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db5500_dma_init(parent);
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db5500_add_rtc(parent);
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db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
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for (i = 0; i < ARRAY_SIZE(db5500_platform_devs); i++)
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db5500_platform_devs[i]->dev.parent = parent;
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platform_add_devices(db5500_platform_devs,
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ARRAY_SIZE(db5500_platform_devs));
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return parent;
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}
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