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276 lines
6.2 KiB
C
276 lines
6.2 KiB
C
/*
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* Atheros AP83 board support
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*
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* Copyright (C) 2008-2012 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/spi_gpio.h>
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#include <linux/spi/vsc7385.h>
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#include <asm/mach-ath79/ar71xx_regs.h>
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#include <asm/mach-ath79/ath79.h>
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#include "dev-eth.h"
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#include "dev-gpio-buttons.h"
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#include "dev-leds-gpio.h"
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#include "dev-usb.h"
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#include "dev-wmac.h"
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#include "machtypes.h"
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#define AP83_GPIO_LED_WLAN 6
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#define AP83_GPIO_LED_POWER 14
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#define AP83_GPIO_LED_JUMPSTART 15
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#define AP83_GPIO_BTN_JUMPSTART 12
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#define AP83_GPIO_BTN_RESET 21
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#define AP83_050_GPIO_VSC7385_CS 1
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#define AP83_050_GPIO_VSC7385_MISO 3
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#define AP83_050_GPIO_VSC7385_MOSI 16
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#define AP83_050_GPIO_VSC7385_SCK 17
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#define AP83_KEYS_POLL_INTERVAL 20 /* msecs */
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#define AP83_KEYS_DEBOUNCE_INTERVAL (3 * AP83_KEYS_POLL_INTERVAL)
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static struct mtd_partition ap83_flash_partitions[] = {
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{
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.name = "u-boot",
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.offset = 0,
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.size = 0x040000,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "u-boot-env",
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.offset = 0x040000,
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.size = 0x020000,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "kernel",
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.offset = 0x060000,
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.size = 0x140000,
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}, {
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.name = "rootfs",
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.offset = 0x1a0000,
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.size = 0x650000,
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}, {
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.name = "art",
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.offset = 0x7f0000,
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.size = 0x010000,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "firmware",
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.offset = 0x060000,
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.size = 0x790000,
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}
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};
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static struct physmap_flash_data ap83_flash_data = {
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.width = 2,
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.parts = ap83_flash_partitions,
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.nr_parts = ARRAY_SIZE(ap83_flash_partitions),
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};
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static struct resource ap83_flash_resources[] = {
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[0] = {
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.start = AR71XX_SPI_BASE,
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.end = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device ap83_flash_device = {
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.name = "ar91xx-flash",
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.id = -1,
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.resource = ap83_flash_resources,
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.num_resources = ARRAY_SIZE(ap83_flash_resources),
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.dev = {
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.platform_data = &ap83_flash_data,
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}
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};
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static struct gpio_led ap83_leds_gpio[] __initdata = {
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{
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.name = "ap83:green:jumpstart",
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.gpio = AP83_GPIO_LED_JUMPSTART,
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.active_low = 0,
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}, {
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.name = "ap83:green:power",
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.gpio = AP83_GPIO_LED_POWER,
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.active_low = 0,
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}, {
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.name = "ap83:green:wlan",
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.gpio = AP83_GPIO_LED_WLAN,
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.active_low = 0,
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},
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};
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static struct gpio_keys_button ap83_gpio_keys[] __initdata = {
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{
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.desc = "soft_reset",
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.type = EV_KEY,
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.code = KEY_RESTART,
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.debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
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.gpio = AP83_GPIO_BTN_RESET,
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.active_low = 1,
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}, {
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.desc = "jumpstart",
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.type = EV_KEY,
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.code = KEY_WPS_BUTTON,
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.debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
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.gpio = AP83_GPIO_BTN_JUMPSTART,
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.active_low = 1,
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}
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};
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static struct resource ap83_040_spi_resources[] = {
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[0] = {
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.start = AR71XX_SPI_BASE,
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.end = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device ap83_040_spi_device = {
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.name = "ap83-spi",
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.id = 0,
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.resource = ap83_040_spi_resources,
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.num_resources = ARRAY_SIZE(ap83_040_spi_resources),
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};
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static struct spi_gpio_platform_data ap83_050_spi_data = {
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.miso = AP83_050_GPIO_VSC7385_MISO,
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.mosi = AP83_050_GPIO_VSC7385_MOSI,
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.sck = AP83_050_GPIO_VSC7385_SCK,
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.num_chipselect = 1,
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};
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static struct platform_device ap83_050_spi_device = {
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.name = "spi_gpio",
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.id = 0,
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.dev = {
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.platform_data = &ap83_050_spi_data,
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}
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};
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static void ap83_vsc7385_reset(void)
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{
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ath79_device_reset_set(AR71XX_RESET_GE1_PHY);
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udelay(10);
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ath79_device_reset_clear(AR71XX_RESET_GE1_PHY);
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mdelay(50);
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}
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static struct vsc7385_platform_data ap83_vsc7385_data = {
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.reset = ap83_vsc7385_reset,
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.ucode_name = "vsc7385_ucode_ap83.bin",
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.mac_cfg = {
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.tx_ipg = 6,
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.bit2 = 0,
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.clk_sel = 3,
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},
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};
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static struct spi_board_info ap83_spi_info[] = {
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{
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.bus_num = 0,
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.chip_select = 0,
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.max_speed_hz = 25000000,
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.modalias = "spi-vsc7385",
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.platform_data = &ap83_vsc7385_data,
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.controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
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}
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};
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static void __init ap83_generic_setup(void)
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{
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u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff1000);
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ath79_register_mdio(0, 0xfffffffe);
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ath79_init_mac(ath79_eth0_data.mac_addr, eeprom, 0);
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ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
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ath79_eth0_data.phy_mask = 0x1;
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ath79_register_eth(0);
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ath79_init_mac(ath79_eth1_data.mac_addr, eeprom, 1);
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ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
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ath79_eth1_data.speed = SPEED_1000;
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ath79_eth1_data.duplex = DUPLEX_FULL;
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ath79_eth1_pll_data.pll_1000 = 0x1f000000;
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ath79_register_eth(1);
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ath79_register_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
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ap83_leds_gpio);
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ath79_register_gpio_keys_polled(-1, AP83_KEYS_POLL_INTERVAL,
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ARRAY_SIZE(ap83_gpio_keys),
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ap83_gpio_keys);
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ath79_register_usb();
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ath79_register_wmac(eeprom, NULL);
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platform_device_register(&ap83_flash_device);
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spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
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}
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static void ap83_040_flash_lock(struct platform_device *pdev)
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{
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ath79_flash_acquire();
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}
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static void ap83_040_flash_unlock(struct platform_device *pdev)
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{
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ath79_flash_release();
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}
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static void __init ap83_040_setup(void)
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{
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ap83_flash_data.lock = ap83_040_flash_lock;
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ap83_flash_data.unlock = ap83_040_flash_unlock;
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ap83_generic_setup();
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platform_device_register(&ap83_040_spi_device);
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}
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static void __init ap83_050_setup(void)
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{
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ap83_generic_setup();
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platform_device_register(&ap83_050_spi_device);
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}
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static void __init ap83_setup(void)
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{
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u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
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unsigned int board_version;
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board_version = (unsigned int)(board_id[0] - '0');
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board_version += ((unsigned int)(board_id[1] - '0')) * 10;
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switch (board_version) {
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case 40:
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ap83_040_setup();
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break;
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case 50:
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ap83_050_setup();
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break;
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default:
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printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
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board_version);
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}
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}
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MIPS_MACHINE(ATH79_MACH_AP83, "AP83", "Atheros AP83", ap83_setup);
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