1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * (C) Copyright 2010, 2018 4 * Allied Telesis <www.alliedtelesis.com> 5 */ 6 7#include <common.h> 8#include <init.h> 9#include <net.h> 10#include <asm/global_data.h> 11#include <linux/bitops.h> 12#include <linux/delay.h> 13#include <linux/io.h> 14#include <miiphy.h> 15#include <netdev.h> 16#include <led.h> 17#include <asm/arch/cpu.h> 18#include <asm/arch/soc.h> 19#include <asm/arch/mpp.h> 20#include <asm-generic/gpio.h> 21#include <dm.h> 22 23/* Note: GPIO differences between specific boards 24 * 25 * We're trying to avoid having multiple build targets for all the Kirkwood 26 * based boards one area where things tend to differ is GPIO usage. For the 27 * most part the GPIOs driven by the bootloader are similar enough in function 28 * that there is no harm in driving them. 29 * 30 * XZ4 XS6 XS16 GS24A GT40 GP24A GT24A 31 * GPIO39 - INT(<) NC MUX_RST_N(>) NC POE_DIS_N(>) NC 32 */ 33 34#define SBX81LIFKW_OE_LOW ~(BIT(31) | BIT(30) | BIT(28) | BIT(27) | \ 35 BIT(18) | BIT(17) | BIT(13) | BIT(12) | \ 36 BIT(10)) 37#define SBX81LIFKW_OE_HIGH ~(BIT(0) | BIT(1) | BIT(7)) 38#define SBX81LIFKW_OE_VAL_LOW (BIT(31) | BIT(30) | BIT(28) | BIT(27)) 39#define SBX81LIFKW_OE_VAL_HIGH (BIT(0) | BIT(1)) 40 41DECLARE_GLOBAL_DATA_PTR; 42 43int board_early_init_f(void) 44{ 45 /* 46 * default gpio configuration 47 * There are maximum 64 gpios controlled through 2 sets of registers 48 * the below configuration configures mainly initial LED status 49 */ 50 mvebu_config_gpio(SBX81LIFKW_OE_VAL_LOW, 51 SBX81LIFKW_OE_VAL_HIGH, 52 SBX81LIFKW_OE_LOW, SBX81LIFKW_OE_HIGH); 53 54 /* Multi-Purpose Pins Functionality configuration */ 55 static const u32 kwmpp_config[] = { 56 MPP0_SPI_SCn, 57 MPP1_SPI_MOSI, 58 MPP2_SPI_SCK, 59 MPP3_SPI_MISO, 60 MPP4_UART0_RXD, 61 MPP5_UART0_TXD, 62 MPP6_SYSRST_OUTn, 63 MPP7_PEX_RST_OUTn, 64 MPP8_TW_SDA, 65 MPP9_TW_SCK, 66 MPP10_GPO, 67 MPP11_GPIO, 68 MPP12_GPO, 69 MPP13_GPIO, 70 MPP14_GPIO, 71 MPP15_UART0_RTS, 72 MPP16_UART0_CTS, 73 MPP17_GPIO, 74 MPP18_GPO, 75 MPP19_GPO, 76 MPP20_GPIO, 77 MPP21_GPIO, 78 MPP22_GPIO, 79 MPP23_GPIO, 80 MPP24_GPIO, 81 MPP25_GPIO, 82 MPP26_GPIO, 83 MPP27_GPIO, 84 MPP28_GPIO, 85 MPP29_GPIO, 86 MPP30_GPIO, 87 MPP31_GPIO, 88 MPP32_GPIO, 89 MPP33_GPIO, 90 MPP34_GPIO, 91 MPP35_GPIO, 92 MPP36_GPIO, 93 MPP37_GPIO, 94 MPP38_GPIO, 95 MPP39_GPIO, 96 MPP40_GPIO, 97 MPP41_GPIO, 98 MPP42_GPIO, 99 MPP43_GPIO, 100 MPP44_GPIO, 101 MPP45_GPIO, 102 MPP46_GPIO, 103 MPP47_GPIO, 104 MPP48_GPIO, 105 MPP49_GPIO, 106 0 107 }; 108 109 kirkwood_mpp_conf(kwmpp_config, NULL); 110 return 0; 111} 112 113int board_init(void) 114{ 115 /* Power-down unused subsystems. The required 116 * subsystems are: 117 * 118 * GE0 b0 119 * PEX0 PHY b1 120 * PEX0.0 b2 121 * TSU b5 122 * SDRAM b6 123 * RUNIT b7 124 */ 125 writel((BIT(0) | BIT(1) | BIT(2) | 126 BIT(5) | BIT(6) | BIT(7)), 127 KW_CPU_REG_BASE + 0x1c); 128 129 /* address of boot parameters */ 130 gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100; 131 132 return 0; 133} 134 135#ifdef CONFIG_RESET_PHY_R 136/* automatically defined by kirkwood config.h */ 137void reset_phy(void) 138{ 139} 140#endif 141 142#ifdef CONFIG_MV88E61XX_SWITCH 143int mv88e61xx_hw_reset(struct phy_device *phydev) 144{ 145 struct gpio_desc desc; 146 int ret; 147 148 ret = dm_gpio_lookup_name("mvebu0_27", &desc); 149 if (ret) 150 return ret; 151 152 ret = dm_gpio_request(&desc, "linkstreet_rst"); 153 if (ret) 154 return ret; 155 156 /* Ensure the 88e6097 gets at least 10ms Reset 157 */ 158 dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT); 159 dm_gpio_set_value(&desc, 0); 160 mdelay(20); 161 dm_gpio_set_value(&desc, 1); 162 mdelay(20); 163 164 phydev->advertising = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full; 165 166 return 0; 167} 168#endif 169 170#ifdef CONFIG_MISC_INIT_R 171int misc_init_r(void) 172{ 173 struct udevice *dev; 174 int ret; 175 176 ret = led_get_by_label("status:ledp", &dev); 177 if (!ret) 178 led_set_state(dev, LEDST_ON); 179 180 ret = led_get_by_label("status:ledn", &dev); 181 if (!ret) 182 led_set_state(dev, LEDST_OFF); 183 184 return 0; 185} 186#endif 187