From f82e939fb75ad01da8f0d3024fc678111ddb4ac7 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 4 Mar 2009 16:21:33 +0100 Subject: xtensa: platform: s6105 Support for the S6105 IP Camera Reference Design Kit. Signed-off-by: Johannes Weiner Signed-off-by: Oskar Schirmer Signed-off-by: Chris Zankel --- arch/xtensa/platforms/s6105/Makefile | 3 + arch/xtensa/platforms/s6105/device.c | 67 ++++++++++++++++++++++ .../xtensa/platforms/s6105/include/platform/gpio.h | 27 +++++++++ .../platforms/s6105/include/platform/hardware.h | 11 ++++ .../platforms/s6105/include/platform/serial.h | 8 +++ arch/xtensa/platforms/s6105/setup.c | 61 ++++++++++++++++++++ 6 files changed, 177 insertions(+) create mode 100644 arch/xtensa/platforms/s6105/Makefile create mode 100644 arch/xtensa/platforms/s6105/device.c create mode 100644 arch/xtensa/platforms/s6105/include/platform/gpio.h create mode 100644 arch/xtensa/platforms/s6105/include/platform/hardware.h create mode 100644 arch/xtensa/platforms/s6105/include/platform/serial.h create mode 100644 arch/xtensa/platforms/s6105/setup.c (limited to 'arch/xtensa/platforms') diff --git a/arch/xtensa/platforms/s6105/Makefile b/arch/xtensa/platforms/s6105/Makefile new file mode 100644 index 0000000..0be6194 --- /dev/null +++ b/arch/xtensa/platforms/s6105/Makefile @@ -0,0 +1,3 @@ +# Makefile for the Stretch S6105 eval board + +obj-y := setup.o device.o diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c new file mode 100644 index 0000000..78b08be --- /dev/null +++ b/arch/xtensa/platforms/s6105/device.c @@ -0,0 +1,67 @@ +/* + * s6105 platform devices + * + * Copyright (c) 2009 emlix GmbH + */ + +#include +#include +#include +#include +#include + +#include + +#define UART_INTNUM 4 + +static const signed char uart_irq_mappings[] = { + S6_INTC_UART(0), + S6_INTC_UART(1), + -1, +}; + +const signed char *platform_irq_mappings[NR_IRQS] = { + [UART_INTNUM] = uart_irq_mappings, +}; + +static struct plat_serial8250_port serial_platform_data[] = { + { + .membase = (void *)S6_REG_UART + 0x0000, + .mapbase = S6_REG_UART + 0x0000, + .irq = UART_INTNUM, + .uartclk = S6_SCLK, + .regshift = 2, + .iotype = SERIAL_IO_MEM, + .flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST, + }, + { + .membase = (void *)S6_REG_UART + 0x1000, + .mapbase = S6_REG_UART + 0x1000, + .irq = UART_INTNUM, + .uartclk = S6_SCLK, + .regshift = 2, + .iotype = SERIAL_IO_MEM, + .flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST, + }, + { }, +}; + +static struct platform_device platform_devices[] = { + { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = serial_platform_data, + }, + }, +}; + +static int __init device_init(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(platform_devices); i++) + platform_device_register(&platform_devices[i]); + return 0; +} +arch_initcall_sync(device_init); diff --git a/arch/xtensa/platforms/s6105/include/platform/gpio.h b/arch/xtensa/platforms/s6105/include/platform/gpio.h new file mode 100644 index 0000000..fa11aa4 --- /dev/null +++ b/arch/xtensa/platforms/s6105/include/platform/gpio.h @@ -0,0 +1,27 @@ +#ifndef __ASM_XTENSA_S6105_GPIO_H +#define __ASM_XTENSA_S6105_GPIO_H + +#define GPIO_BP_TEMP_ALARM 0 +#define GPIO_PB_RESET_IN 1 +#define GPIO_EXP_IRQ 2 +#define GPIO_TRIGGER_IRQ 3 +#define GPIO_RTC_IRQ 4 +#define GPIO_PHY_IRQ 5 +#define GPIO_IMAGER_RESET 6 +#define GPIO_SD_IRQ 7 +#define GPIO_MINI_BOOT_INH 8 +#define GPIO_BOARD_RESET 9 +#define GPIO_EXP_PRESENT 10 +#define GPIO_LED1_NGREEN 12 +#define GPIO_LED1_RED 13 +#define GPIO_LED0_NGREEN 14 +#define GPIO_LED0_NRED 15 +#define GPIO_SPI_CS0 16 +#define GPIO_SPI_CS1 17 +#define GPIO_SPI_CS3 19 +#define GPIO_SPI_CS4 20 +#define GPIO_SD_WP 21 +#define GPIO_BP_RESET 22 +#define GPIO_ALARM_OUT 23 + +#endif /* __ASM_XTENSA_S6105_GPIO_H */ diff --git a/arch/xtensa/platforms/s6105/include/platform/hardware.h b/arch/xtensa/platforms/s6105/include/platform/hardware.h new file mode 100644 index 0000000..d628efa --- /dev/null +++ b/arch/xtensa/platforms/s6105/include/platform/hardware.h @@ -0,0 +1,11 @@ +#ifndef __XTENSA_S6105_HARDWARE_H +#define __XTENSA_S6105_HARDWARE_H + +#define PLATFORM_DEFAULT_MEM_START 0x40000000 +#define PLATFORM_DEFAULT_MEM_SIZE 0x08000000 + +#define MAX_DMA_ADDRESS 0 + +#define KERNELOFFSET (PLATFORM_DEFAULT_MEM_START + 0x1000) + +#endif /* __XTENSA_S6105_HARDWARE_H */ diff --git a/arch/xtensa/platforms/s6105/include/platform/serial.h b/arch/xtensa/platforms/s6105/include/platform/serial.h new file mode 100644 index 0000000..c8a771e --- /dev/null +++ b/arch/xtensa/platforms/s6105/include/platform/serial.h @@ -0,0 +1,8 @@ +#ifndef __ASM_XTENSA_S6105_SERIAL_H +#define __ASM_XTENSA_S6105_SERIAL_H + +#include + +#define BASE_BAUD (S6_SCLK / 16) + +#endif /* __ASM_XTENSA_S6105_SERIAL_H */ diff --git a/arch/xtensa/platforms/s6105/setup.c b/arch/xtensa/platforms/s6105/setup.c new file mode 100644 index 0000000..ae041d5 --- /dev/null +++ b/arch/xtensa/platforms/s6105/setup.c @@ -0,0 +1,61 @@ +/* + * s6105 control routines + * + * Copyright (c) 2009 emlix GmbH + */ +#include +#include +#include + +#include + +#include +#include + +void platform_halt(void) +{ + local_irq_disable(); + while (1) + ; +} + +void platform_power_off(void) +{ + platform_halt(); +} + +void platform_restart(void) +{ + platform_halt(); +} + +void __init platform_setup(char **cmdline) +{ + unsigned long reg; + + reg = readl(S6_REG_GREG1 + S6_GREG1_CLKGATE); + reg &= ~(1 << S6_GREG1_BLOCK_SB); + writel(reg, S6_REG_GREG1 + S6_GREG1_CLKGATE); + + reg = readl(S6_REG_GREG1 + S6_GREG1_BLOCKENA); + reg |= 1 << S6_GREG1_BLOCK_SB; + writel(reg, S6_REG_GREG1 + S6_GREG1_BLOCKENA); + + printk(KERN_NOTICE "S6105 on Stretch S6000 - " + "Copyright (C) 2009 emlix GmbH \n"); +} + +void __init platform_init(bp_tag_t *first) +{ + gpio_request(GPIO_LED1_NGREEN, "led1_green"); + gpio_request(GPIO_LED1_RED, "led1_red"); + gpio_direction_output(GPIO_LED1_NGREEN, 1); +} + +void platform_heartbeat(void) +{ + static unsigned int c; + + if (!(++c & 0x4F)) + gpio_direction_output(GPIO_LED1_RED, !(c & 0x10)); +} -- cgit v1.1