diff options
Diffstat (limited to 'arch/arm/mach-ux500/cpu-db5500.c')
| -rw-r--r-- | arch/arm/mach-ux500/cpu-db5500.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c new file mode 100644 index 00000000..bca47f32 --- /dev/null +++ b/arch/arm/mach-ux500/cpu-db5500.c @@ -0,0 +1,247 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson + * License terms: GNU General Public License (GPL) version 2 + */ + +#include <linux/platform_device.h> +#include <linux/amba/bus.h> +#include <linux/io.h> +#include <linux/irq.h> + +#include <asm/mach/map.h> +#include <asm/pmu.h> + +#include <plat/gpio-nomadik.h> + +#include <mach/hardware.h> +#include <mach/devices.h> +#include <mach/setup.h> +#include <mach/irqs.h> +#include <mach/usb.h> + +#include "devices-db5500.h" +#include "ste-dma40-db5500.h" + +static struct map_desc u5500_uart_io_desc[] __initdata = { + __IO_DEV_DESC(U5500_UART0_BASE, SZ_4K), + __IO_DEV_DESC(U5500_UART2_BASE, SZ_4K), +}; + +static struct map_desc u5500_io_desc[] __initdata = { + /* SCU base also covers GIC CPU BASE and TWD with its 4K page */ + __IO_DEV_DESC(U5500_SCU_BASE, SZ_4K), + __IO_DEV_DESC(U5500_GIC_DIST_BASE, SZ_4K), + __IO_DEV_DESC(U5500_L2CC_BASE, SZ_4K), + __IO_DEV_DESC(U5500_MTU0_BASE, SZ_4K), + __IO_DEV_DESC(U5500_BACKUPRAM0_BASE, SZ_8K), + + __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K), + __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K), + __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K), + __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K), + __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K), + __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K), + __IO_DEV_DESC(U5500_PRCMU_TCDM_BASE, SZ_4K), +}; + +static struct resource mbox0_resources[] = { + { + .name = "mbox_peer", + .start = U5500_MBOX0_PEER_START, + .end = U5500_MBOX0_PEER_END, + .flags = IORESOURCE_MEM, + }, + { + .name = "mbox_local", + .start = U5500_MBOX0_LOCAL_START, + .end = U5500_MBOX0_LOCAL_END, + .flags = IORESOURCE_MEM, + }, + { + .name = "mbox_irq", + .start = MBOX_PAIR0_VIRT_IRQ, + .end = MBOX_PAIR0_VIRT_IRQ, + .flags = IORESOURCE_IRQ, + } +}; + +static struct resource mbox1_resources[] = { + { + .name = "mbox_peer", + .start = U5500_MBOX1_PEER_START, + .end = U5500_MBOX1_PEER_END, + .flags = IORESOURCE_MEM, + }, + { + .name = "mbox_local", + .start = U5500_MBOX1_LOCAL_START, + .end = U5500_MBOX1_LOCAL_END, + .flags = IORESOURCE_MEM, + }, + { + .name = "mbox_irq", + .start = MBOX_PAIR1_VIRT_IRQ, + .end = MBOX_PAIR1_VIRT_IRQ, + .flags = IORESOURCE_IRQ, + } +}; + +static struct resource mbox2_resources[] = { + { + .name = "mbox_peer", + .start = U5500_MBOX2_PEER_START, + .end = U5500_MBOX2_PEER_END, + .flags = IORESOURCE_MEM, + }, + { + .name = "mbox_local", + .start = U5500_MBOX2_LOCAL_START, + .end = U5500_MBOX2_LOCAL_END, + .flags = IORESOURCE_MEM, + }, + { + .name = "mbox_irq", + .start = MBOX_PAIR2_VIRT_IRQ, + .end = MBOX_PAIR2_VIRT_IRQ, + .flags = IORESOURCE_IRQ, + } +}; + +static struct platform_device mbox0_device = { + .id = 0, + .name = "mbox", + .resource = mbox0_resources, + .num_resources = ARRAY_SIZE(mbox0_resources), +}; + +static struct platform_device mbox1_device = { + .id = 1, + .name = "mbox", + .resource = mbox1_resources, + .num_resources = ARRAY_SIZE(mbox1_resources), +}; + +static struct platform_device mbox2_device = { + .id = 2, + .name = "mbox", + .resource = mbox2_resources, + .num_resources = ARRAY_SIZE(mbox2_resources), +}; + +static struct platform_device *db5500_platform_devs[] __initdata = { + &mbox0_device, + &mbox1_device, + &mbox2_device, +}; + +static resource_size_t __initdata db5500_gpio_base[] = { + U5500_GPIOBANK0_BASE, + U5500_GPIOBANK1_BASE, + U5500_GPIOBANK2_BASE, + U5500_GPIOBANK3_BASE, + U5500_GPIOBANK4_BASE, + U5500_GPIOBANK5_BASE, + U5500_GPIOBANK6_BASE, + U5500_GPIOBANK7_BASE, +}; + +static void __init db5500_add_gpios(struct device *parent) +{ + struct nmk_gpio_platform_data pdata = { + /* No custom data yet */ + }; + + dbx500_add_gpios(parent, ARRAY_AND_SIZE(db5500_gpio_base), + IRQ_DB5500_GPIO0, &pdata); +} + +void __init u5500_map_io(void) +{ + /* + * Map the UARTs early so that the DEBUG_LL stuff continues to work. + */ + iotable_init(u5500_uart_io_desc, ARRAY_SIZE(u5500_uart_io_desc)); + + ux500_map_io(); + + iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc)); + + _PRCMU_BASE = __io_address(U5500_PRCMU_BASE); +} + +static void __init db5500_pmu_init(void) +{ + struct resource res[] = { + [0] = { + .start = IRQ_DB5500_PMU0, + .end = IRQ_DB5500_PMU0, + .flags = IORESOURCE_IRQ, + }, + [1] = { + .start = IRQ_DB5500_PMU1, + .end = IRQ_DB5500_PMU1, + .flags = IORESOURCE_IRQ, + }, + }; + + platform_device_register_simple("arm-pmu", ARM_PMU_DEVICE_CPU, + res, ARRAY_SIZE(res)); +} + +static int usb_db5500_rx_dma_cfg[] = { + DB5500_DMA_DEV4_USB_OTG_IEP_1_9, + DB5500_DMA_DEV5_USB_OTG_IEP_2_10, + DB5500_DMA_DEV6_USB_OTG_IEP_3_11, + DB5500_DMA_DEV20_USB_OTG_IEP_4_12, + DB5500_DMA_DEV21_USB_OTG_IEP_5_13, + DB5500_DMA_DEV22_USB_OTG_IEP_6_14, + DB5500_DMA_DEV23_USB_OTG_IEP_7_15, + DB5500_DMA_DEV38_USB_OTG_IEP_8 +}; + +static int usb_db5500_tx_dma_cfg[] = { + DB5500_DMA_DEV4_USB_OTG_OEP_1_9, + DB5500_DMA_DEV5_USB_OTG_OEP_2_10, + DB5500_DMA_DEV6_USB_OTG_OEP_3_11, + DB5500_DMA_DEV20_USB_OTG_OEP_4_12, + DB5500_DMA_DEV21_USB_OTG_OEP_5_13, + DB5500_DMA_DEV22_USB_OTG_OEP_6_14, + DB5500_DMA_DEV23_USB_OTG_OEP_7_15, + DB5500_DMA_DEV38_USB_OTG_OEP_8 +}; + +static const char *db5500_read_soc_id(void) +{ + return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n"); +} + +static struct device * __init db5500_soc_device_init(void) +{ + const char *soc_id = db5500_read_soc_id(); + + return ux500_soc_device_init(soc_id); +} + +struct device * __init u5500_init_devices(void) +{ + struct device *parent; + int i; + + parent = db5500_soc_device_init(); + + db5500_add_gpios(parent); + db5500_pmu_init(); + db5500_dma_init(parent); + db5500_add_rtc(parent); + db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg); + + for (i = 0; i < ARRAY_SIZE(db5500_platform_devs); i++) + db5500_platform_devs[i]->dev.parent = parent; + + platform_add_devices(db5500_platform_devs, + ARRAY_SIZE(db5500_platform_devs)); + + return parent; +} |