83 lines
2.0 KiB
Diff
83 lines
2.0 KiB
Diff
--- a/arch/mips/ar231x/ar2315.c 2010-08-07 10:15:11.696355750 +0200
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+++ b/arch/mips/ar231x/ar2315.c 2010-08-07 10:33:47.588393782 +0200
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@@ -36,6 +36,11 @@
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#include "devices.h"
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#include "ar2315.h"
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+/* BVDM 04/06/2010 */
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+#include <linux/spi/spi.h>
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+#include <linux/spi/spidev.h>
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+#include <linux/spi/spi_gpio.h>
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+
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static u32 gpiointmask = 0, gpiointval = 0;
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static inline void ar2315_gpio_irq(void)
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@@ -398,6 +403,37 @@
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.name = "ar2315_wdt",
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};
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+/* BVDM 04/06/2010 */
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+#define SPI_GPIO_SCK 3
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+#define SPI_GPIO_MOSI 1
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+#define SPI_GPIO_MISO 2
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+
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+static struct spi_gpio_platform_data ar2315_spi_gpio_platform_data = {
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+ .sck = SPI_GPIO_SCK,
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+ .mosi = SPI_GPIO_MOSI,
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+ .miso = SPI_GPIO_MISO,
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+ .num_chipselect = 1,
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+};
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+
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+static struct platform_device ar2315_spi_gpio = {
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+ .name = "spi_gpio",
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+ .id = 0,
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+ .dev = {
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+ .platform_data = &ar2315_spi_gpio_platform_data,
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+ },
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+};
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+
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+static struct spi_board_info ar2315_spi_gpio_board_info[] __initdata = {
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+{
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+ .modalias = "spidev",
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+ .controller_data = (void *) SPI_GPIO_NO_CHIPSELECT,
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+ .mode = SPI_MODE_0,
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+ .max_speed_hz = 1000000, /* 1Mhz max, but the bitbanged spi doesn't clock faster than 572kHz */
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+ .bus_num = 0,
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+},
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+};
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+
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+
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#define SPI_FLASH_CTL 0x00
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#define SPI_FLASH_OPCODE 0x04
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#define SPI_FLASH_DATA 0x08
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@@ -520,6 +556,7 @@
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}
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ar2315_led_data.num_leds = led;
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platform_device_register(&ar2315_gpio_leds);
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+ platform_device_register(&ar2315_spi_gpio);
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}
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#else
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static inline void ar2315_init_gpio(void)
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@@ -530,6 +567,8 @@
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int __init
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ar2315_init_devices(void)
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{
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+ int ret;
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+
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if (!is_2315())
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return 0;
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@@ -544,6 +583,12 @@
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&ar2315_eth_data);
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ar231x_add_wmac(0, AR2315_WLAN0, AR2315_IRQ_WLAN0_INTRS);
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+ /* BVDM 04/06/2010 */
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+ platform_device_register(&ar2315_spi_gpio);
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+ ret = spi_register_board_info(ar2315_spi_gpio_board_info, ARRAY_SIZE(ar2315_spi_gpio_board_info));
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+ /* debugging */
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+ printk(KERN_DEBUG "spi_register_board_info return value: %x\n", ret);
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+
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return 0;
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}
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