diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/ath79/Kconfig | 4 | ||||
| -rw-r--r-- | arch/mips/ath79/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/ath79/dev-spi.c | 38 | ||||
| -rw-r--r-- | arch/mips/ath79/dev-spi.h | 22 | ||||
| -rw-r--r-- | arch/mips/ath79/mach-pb44.c | 17 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 2 |
6 files changed, 84 insertions, 0 deletions
diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig index 185a8d6..cd6c738 100644 --- a/arch/mips/ath79/Kconfig +++ b/arch/mips/ath79/Kconfig @@ -7,6 +7,7 @@ config ATH79_MACH_PB44 select SOC_AR71XX select ATH79_DEV_GPIO_BUTTONS select ATH79_DEV_LEDS_GPIO + select ATH79_DEV_SPI help Say 'Y' here if you want your kernel to support the Atheros PB44 reference board. @@ -28,4 +29,7 @@ config ATH79_DEV_GPIO_BUTTONS config ATH79_DEV_LEDS_GPIO def_bool n +config ATH79_DEV_SPI + def_bool n + endif diff --git a/arch/mips/ath79/Makefile b/arch/mips/ath79/Makefile index 344e9ab..42f4295 100644 --- a/arch/mips/ath79/Makefile +++ b/arch/mips/ath79/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-y += dev-common.o obj-$(CONFIG_ATH79_DEV_GPIO_BUTTONS) += dev-gpio-buttons.o obj-$(CONFIG_ATH79_DEV_LEDS_GPIO) += dev-leds-gpio.o +obj-$(CONFIG_ATH79_DEV_SPI) += dev-spi.o # # Machines diff --git a/arch/mips/ath79/dev-spi.c b/arch/mips/ath79/dev-spi.c new file mode 100644 index 0000000..aa30163 --- /dev/null +++ b/arch/mips/ath79/dev-spi.c @@ -0,0 +1,38 @@ +/* + * Atheros AR71XX/AR724X/AR913X SPI controller device + * + * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/platform_device.h> +#include <asm/mach-ath79/ar71xx_regs.h> +#include "dev-spi.h" + +static struct resource ath79_spi_resources[] = { + { + .start = AR71XX_SPI_BASE, + .end = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device ath79_spi_device = { + .name = "ath79-spi", + .id = -1, + .resource = ath79_spi_resources, + .num_resources = ARRAY_SIZE(ath79_spi_resources), +}; + +void __init ath79_register_spi(struct ath79_spi_platform_data *pdata, + struct spi_board_info const *info, + unsigned n) +{ + spi_register_board_info(info, n); + ath79_spi_device.dev.platform_data = pdata; + platform_device_register(&ath79_spi_device); +} diff --git a/arch/mips/ath79/dev-spi.h b/arch/mips/ath79/dev-spi.h new file mode 100644 index 0000000..d732565 --- /dev/null +++ b/arch/mips/ath79/dev-spi.h @@ -0,0 +1,22 @@ +/* + * Atheros AR71XX/AR724X/AR913X SPI controller device + * + * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#ifndef _ATH79_DEV_SPI_H +#define _ATH79_DEV_SPI_H + +#include <linux/spi/spi.h> +#include <asm/mach-ath79/ath79_spi_platform.h> + +void ath79_register_spi(struct ath79_spi_platform_data *pdata, + struct spi_board_info const *info, + unsigned n); + +#endif /* _ATH79_DEV_SPI_H */ diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c index 3dc5080..ec7b7a1 100644 --- a/arch/mips/ath79/mach-pb44.c +++ b/arch/mips/ath79/mach-pb44.c @@ -17,6 +17,7 @@ #include "machtypes.h" #include "dev-gpio-buttons.h" #include "dev-leds-gpio.h" +#include "dev-spi.h" #define PB44_GPIO_I2C_SCL 0 #define PB44_GPIO_I2C_SDA 1 @@ -84,6 +85,20 @@ static struct gpio_keys_button pb44_gpio_keys[] __initdata = { } }; +static struct spi_board_info pb44_spi_info[] = { + { + .bus_num = 0, + .chip_select = 0, + .max_speed_hz = 25000000, + .modalias = "m25p64", + }, +}; + +static struct ath79_spi_platform_data pb44_spi_data = { + .bus_num = 0, + .num_chipselect = 1, +}; + static void __init pb44_init(void) { i2c_register_board_info(0, pb44_i2c_board_info, @@ -95,6 +110,8 @@ static void __init pb44_init(void) ath79_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL, ARRAY_SIZE(pb44_gpio_keys), pb44_gpio_keys); + ath79_register_spi(&pb44_spi_data, pb44_spi_info, + ARRAY_SIZE(pb44_spi_info)); } MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board", diff --git a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h index 7f2933d..4f2b621 100644 --- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h +++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h @@ -20,6 +20,8 @@ #include <linux/bitops.h> #define AR71XX_APB_BASE 0x18000000 +#define AR71XX_SPI_BASE 0x1f000000 +#define AR71XX_SPI_SIZE 0x01000000 #define AR71XX_DDR_CTRL_BASE (AR71XX_APB_BASE + 0x00000000) #define AR71XX_DDR_CTRL_SIZE 0x100 |
