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本帖最后由 hello_limin 于 2017-11-29 13:13 编辑
相关代码在此，
- /*
- * TP-LINK TL-WR881N v1 board support
- *
- * Copyright (C) 2016 Alexander Wang <limin2016@yahoo.com>
- * Copyright (C) 2015 Weijie Gao <hackpacsal@gmail.com>
- * Copyright (C) 2008-2009 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.
- */
- #include <linux/pci.h>
- #include <linux/phy.h>
- #include <linux/gpio.h>
- #include <linux/delay.h>
- #include <linux/mtd/mtd.h>
- #include <linux/mtd/partitions.h>
- #include <linux/platform_device.h>
- #include <linux/ath9k_platform.h>
- #include <linux/ar8216_platform.h>
- #include <asm/mach-ath79/ath79.h>
- #include <asm/mach-ath79/ar71xx_regs.h>
- #include "pci.h"
- #include "common.h"
- #include "dev-ap9x-pci.h"
- #include "dev-eth.h"
- #include "dev-gpio-buttons.h"
- #include "dev-leds-gpio.h"
- #include "dev-m25p80.h"
- #include "dev-spi.h"
- #include "dev-wmac.h"
- #include "machtypes.h"
- #define WR881NV1_GPIO_LED_WLAN 12
- #define WR881NV1_GPIO_LED_SYSTEM 19
- #define WR881NV1_GPIO_LED_WPS 15
- #define WR881NV1_GPIO_BTN_RESET 16
- #define WR881NV1_KEYS_POLL_INTERVAL 20 /* msecs */
- #define WR881NV1_KEYS_DEBOUNCE_INTERVAL (3 * WR881NV1_KEYS_POLL_INTERVAL)
- #define ATH_MII_MGMT_CMD 0x24
- #define ATH_MGMT_CMD_READ 0x1
- #define ATH_MII_MGMT_ADDRESS 0x28
- #define ATH_ADDR_SHIFT 8
- #define ATH_MII_MGMT_CTRL 0x2c
- #define ATH_MII_MGMT_STATUS 0x30
- #define ATH_MII_MGMT_IND 0x34
- #define ATH_MGMT_IND_BUSY (1 << 0)
- #define ATH_MGMT_IND_INVALID (1 << 2)
- #define WR881NV1_WMAC_CALDATA_OFFSET 0x1000
- #define QCA955X_ETH_CFG_GMAC0_EN BIT(1)
- #define QCA955X_ETH_CFG_GMAC0_SLAVE BIT(4)
- static const char *wr881nv1_part_probes[] = {
- "tp-link",
- NULL,
- };
- static struct flash_platform_data wr881nv1_flash_data = {
- .part_probes = wr881nv1_part_probes,
- };
- static struct gpio_led wr881nv1_leds_gpio[] __initdata = {
- {
- .name = "tp-link:green:wps",
- .gpio = WR881NV1_GPIO_LED_WPS,
- .active_low = 1,
- },
- {
- .name = "tp-link:green:system",
- .gpio = WR881NV1_GPIO_LED_SYSTEM,
- .active_low = 1,
- },
- {
- .name = "tp-link:green:wlan",
- .gpio = WR881NV1_GPIO_LED_WLAN,
- .active_low = 1,
- },
- };
- static struct gpio_keys_button wr881nv1_gpio_keys[] __initdata = {
- {
- .desc = "reset",
- .type = EV_KEY,
- .code = KEY_RESTART,
- .debounce_interval = WR881NV1_KEYS_DEBOUNCE_INTERVAL,
- .gpio = WR881NV1_GPIO_BTN_RESET,
- .active_low = 1,
- },
- };
- static unsigned long __init ath_gmac_reg_rd(unsigned long reg)
- {
- void __iomem *base;
- unsigned long t;
- base = ioremap(AR71XX_GE0_BASE, AR71XX_GE0_SIZE);
- t = __raw_readl(base + reg);
- iounmap(base);
- return t;
- }
- static void __init ath_gmac_reg_wr(unsigned long reg, unsigned long value)
- {
- void __iomem *base;
- unsigned long t = value;
- base = ioremap(AR71XX_GE0_BASE, AR71XX_GE0_SIZE);
- __raw_writel(t, base + reg);
- iounmap(base);
- }
- static void __init phy_reg_write(unsigned char phy_addr, unsigned char reg, unsigned short data)
- {
- unsigned short addr = (phy_addr << ATH_ADDR_SHIFT) | reg;
- volatile int rddata;
- unsigned short ii = 0xFFFF;
- do
- {
- udelay(5);
- rddata = ath_gmac_reg_rd(ATH_MII_MGMT_IND) & 0x1;
- } while (rddata && --ii);
- ath_gmac_reg_wr(ATH_MII_MGMT_ADDRESS, addr);
- ath_gmac_reg_wr(ATH_MII_MGMT_CTRL, data);
- do
- {
- udelay(5);
- rddata = ath_gmac_reg_rd(ATH_MII_MGMT_IND) & 0x1;
- } while (rddata && --ii);
- }
- static unsigned short __init phy_reg_read(unsigned char phy_addr, unsigned char reg)
- {
- unsigned short addr = (phy_addr << ATH_ADDR_SHIFT) | reg, val;
- volatile int rddata;
- unsigned short ii = 0xffff;
- do
- {
- udelay(5);
- rddata = ath_gmac_reg_rd(ATH_MII_MGMT_IND) & 0x1;
- } while (rddata && --ii);
- ath_gmac_reg_wr(ATH_MII_MGMT_CMD, 0x0);
- ath_gmac_reg_wr(ATH_MII_MGMT_ADDRESS, addr);
- ath_gmac_reg_wr(ATH_MII_MGMT_CMD, ATH_MGMT_CMD_READ);
- do
- {
- udelay(5);
- rddata = ath_gmac_reg_rd(ATH_MII_MGMT_IND) & 0x1;
- } while (rddata && --ii);
- val = ath_gmac_reg_rd(ATH_MII_MGMT_STATUS);
- ath_gmac_reg_wr(ATH_MII_MGMT_CMD, 0x0);
- return val;
- }
- static void __init athrs27_reg_write(unsigned int s27_addr, unsigned int s27_write_data)
- {
- unsigned int addr_temp;
- unsigned int data;
- unsigned char phy_address, reg_address;
- addr_temp = (s27_addr) >> 2;
- data = addr_temp >> 7;
- phy_address = 0x1f;
- reg_address = 0x10;
- phy_reg_write(phy_address, reg_address, data);
- phy_address = (0x17 & ((addr_temp >> 4) | 0x10));
- reg_address = (((addr_temp << 1) & 0x1e) | 0x1);
- data = (s27_write_data >> 16) & 0xffff;
- phy_reg_write(phy_address, reg_address, data);
- reg_address = ((addr_temp << 1) & 0x1e);
- data = s27_write_data & 0xffff;
- phy_reg_write(phy_address, reg_address, data);
- }
- static unsigned int __init athrs27_reg_read(unsigned int s27_addr)
- {
- unsigned int addr_temp;
- unsigned int s27_rd_csr_low, s27_rd_csr_high, s27_rd_csr;
- unsigned int data;
- unsigned char phy_address, reg_address;
- addr_temp = s27_addr >>2;
- data = addr_temp >> 7;
- phy_address = 0x1f;
- reg_address = 0x10;
- phy_reg_write(phy_address, reg_address, data);
- phy_address = (0x17 & ((addr_temp >> 4) | 0x10));
- reg_address = ((addr_temp << 1) & 0x1e);
- s27_rd_csr_low = (unsigned int) phy_reg_read(phy_address, reg_address);
- reg_address = reg_address | 0x1;
- s27_rd_csr_high = (unsigned int) phy_reg_read(phy_address, reg_address);
- s27_rd_csr = (s27_rd_csr_high << 16) | s27_rd_csr_low ;
-
- return (s27_rd_csr);
- }
- static void __init ar8236_reset(void)
- {
- unsigned short i = 30;
- athrs27_reg_write(0x0, athrs27_reg_read(0x0) | 0x80000000);
- while (i--)
- {
- mdelay(100);
- if (!(athrs27_reg_read(0x0) & 0x80000000))
- break;
- }
- }
- static struct mdio_board_info wr881nv1_mdio0_info[] = {
- {
- .bus_id = "ag71xx-mdio.0",
- .phy_addr = 0,
- .platform_data = NULL,
- },
- };
- static void __init wr881nv1_setup(void)
- {
- u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
- u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
- u8 tmpmac[ETH_ALEN];
- ath79_register_m25p80(&wr881nv1_flash_data);
-
- ath79_register_pci();
-
- ath79_init_mac(tmpmac, mac, 0);
- ath79_register_wmac(art + WR881NV1_WMAC_CALDATA_OFFSET, tmpmac);
- ath79_register_mdio(0, 0x0);
-
- mdiobus_register_board_info(wr881nv1_mdio0_info,
- ARRAY_SIZE(wr881nv1_mdio0_info));
- ar8236_reset();
-
- ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_GMAC0_EN | QCA955X_ETH_CFG_GMAC0_SLAVE);
-
- /* WAN */
- ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
- /* GMAC0 is connected to the PHY0 of the AR8236 switch, GE0 */
- ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
- ath79_eth0_data.duplex = DUPLEX_FULL;
- ath79_eth0_data.speed = SPEED_100;
- ath79_eth0_data.phy_mask = BIT(0);
- ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
- ath79_register_eth(0);
-
- ath79_register_leds_gpio(-1, ARRAY_SIZE(wr881nv1_leds_gpio),
- wr881nv1_leds_gpio);
- ath79_register_gpio_keys_polled(-1, WR881NV1_KEYS_POLL_INTERVAL,
- ARRAY_SIZE(wr881nv1_gpio_keys),
- wr881nv1_gpio_keys);
- }
- MIPS_MACHINE(ATH79_MACH_TL_WR881N_V1, "TL-WR881N-v1", "TP-LINK TL-WR881N v1", wr881nv1_setup);
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发表于 2017-11-11 00:39
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