[ar71xx] add experimental support for the AP83-040 board
authorGabor Juhos <juhosg@openwrt.org>
Wed, 3 Jun 2009 19:54:25 +0000 (19:54 +0000)
committerGabor Juhos <juhosg@openwrt.org>
Wed, 3 Jun 2009 19:54:25 +0000 (19:54 +0000)
SVN-Revision: 16316

target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c
target/linux/ar71xx/files/include/linux/spi/vsc7385.h [new file with mode: 0644]

index 4703d25..fe0e502 100644 (file)
@@ -9,6 +9,7 @@
  *  by the Free Software Foundation.
  */
 
+#include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/input.h>
 #include <linux/mtd/mtd.h>
@@ -16,6 +17,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_gpio.h>
+#include <linux/spi/vsc7385.h>
 
 #include <asm/mips_machine.h>
 #include <asm/mach-ar71xx/ar71xx.h>
 #define AP83_GPIO_BTN_JUMPSTART        12
 #define AP83_GPIO_BTN_RESET    21
 
-#define AP83_GPIO_VSC7385_CS   1
-#define AP83_GPIO_VSC7385_MISO 3
-#define AP83_GPIO_VSC7385_MOSI 16
-#define AP83_GPIO_VSC7385_SCK  17
+#define AP83_050_GPIO_VSC7385_CS       1
+#define AP83_050_GPIO_VSC7385_MISO     3
+#define AP83_050_GPIO_VSC7385_MOSI     16
+#define AP83_050_GPIO_VSC7385_SCK      17
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition ap83_flash_partitions[] = {
@@ -126,23 +128,65 @@ static struct gpio_button ap83_gpio_buttons[] __initdata = {
        }
 };
 
-static struct spi_gpio_platform_data ap83_spi_data = {
-       .miso   = AP83_GPIO_VSC7385_MISO,
-       .mosi   = AP83_GPIO_VSC7385_MOSI,
-       .sck    = AP83_GPIO_VSC7385_SCK,
+static struct resource ap83_040_spi_resources[] = {
+       [0] = {
+               .start  = AR71XX_SPI_BASE,
+               .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+};
+
+static struct platform_device ap83_040_spi_device = {
+       .name           = "ap83-spi",
+       .id             = 0,
+       .resource       = ap83_040_spi_resources,
+       .num_resources  = ARRAY_SIZE(ap83_040_spi_resources),
+};
+
+static struct spi_gpio_platform_data ap83_050_spi_data = {
+       .miso   = AP83_050_GPIO_VSC7385_MISO,
+       .mosi   = AP83_050_GPIO_VSC7385_MOSI,
+       .sck    = AP83_050_GPIO_VSC7385_SCK,
        .num_chipselect = 1,
 };
 
-static struct platform_device ap83_spi_device = {
+static struct platform_device ap83_050_spi_device = {
        .name           = "spi_gpio",
        .id             = 0,
        .dev            = {
-               .platform_data = &ap83_spi_data,
+               .platform_data = &ap83_050_spi_data,
        }
 };
 
-static void __init ap83_setup(void)
+static void ap83_vsc7385_reset(void)
+{
+       ar71xx_device_stop(RESET_MODULE_GE1_PHY);
+       udelay(10);
+       ar71xx_device_start(RESET_MODULE_GE1_PHY);
+       mdelay(50);
+}
+
+static struct vsc7385_platform_data ap83_vsc7385_data = {
+       .reset          = ap83_vsc7385_reset,
+};
+
+static struct spi_board_info ap83_spi_info[] = {
+       {
+               .bus_num        = 0,
+               .chip_select    = 0,
+               .max_speed_hz   = 25000000,
+               .modalias       = "spi-vsc7385",
+               .platform_data  = &ap83_vsc7385_data,
+               .controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
+       }
+};
+
+static void __init ap83_generic_setup(void)
 {
+       u8 *mac = (u8 *) KSEG1ADDR(0x1fff1000);
+
+       ar71xx_set_mac_base(mac);
+
        ar71xx_add_device_mdio(0xfffffffe);
 
        ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
@@ -169,8 +213,43 @@ static void __init ap83_setup(void)
 
        ar91xx_add_device_wmac();
 
-       platform_device_register(&ap83_spi_device);
        platform_device_register(&ap83_flash_device);
+
+       spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
+}
+
+static void __init ap83_040_setup(void)
+{
+       ar71xx_flash_lock_enable();
+       ap83_generic_setup();
+       platform_device_register(&ap83_040_spi_device);
+}
+
+static void __init ap83_050_setup(void)
+{
+       ap83_generic_setup();
+       platform_device_register(&ap83_050_spi_device);
+}
+
+static void __init ap83_setup(void)
+{
+       u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
+       unsigned int board_version;
+
+       board_version = (unsigned int)(board_id[0] - '0');
+       board_version += ((unsigned int)(board_id[1] - '0')) * 10;
+
+       switch (board_version) {
+       case 40:
+               ap83_040_setup();
+               break;
+       case 50:
+               ap83_050_setup();
+               break;
+       default:
+               printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
+                      board_version);
+       }
 }
 
 MIPS_MACHINE(AR71XX_MACH_AP83, "Atheros AP83", ap83_setup);
diff --git a/target/linux/ar71xx/files/include/linux/spi/vsc7385.h b/target/linux/ar71xx/files/include/linux/spi/vsc7385.h
new file mode 100644 (file)
index 0000000..907ca33
--- /dev/null
@@ -0,0 +1,14 @@
+/*
+ * Platform data definition for the Vitesse VSC7385 ethernet switch driver
+ *
+ * Copyright (C) 2009 Gabor Juhos <juhosg@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.
+ */
+
+struct vsc7385_platform_data {
+       void            (* reset)(void);
+       unsigned char   *ucode_name;
+};