1 /* 2 * Novena board support 3 * 4 * Copyright (C) 2014 Marek Vasut <marex@denx.de> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <asm/errno.h> 11 #include <asm/gpio.h> 12 #include <asm/io.h> 13 #include <asm/arch/clock.h> 14 #include <asm/arch/crm_regs.h> 15 #include <asm/arch/imx-regs.h> 16 #include <asm/arch/iomux.h> 17 #include <asm/arch/mxc_hdmi.h> 18 #include <asm/arch/sys_proto.h> 19 #include <asm/imx-common/boot_mode.h> 20 #include <asm/imx-common/iomux-v3.h> 21 #include <asm/imx-common/mxc_i2c.h> 22 #include <asm/imx-common/sata.h> 23 #include <asm/imx-common/video.h> 24 #include <fsl_esdhc.h> 25 #include <i2c.h> 26 #include <input.h> 27 #include <ipu_pixfmt.h> 28 #include <linux/fb.h> 29 #include <linux/input.h> 30 #include <malloc.h> 31 #include <micrel.h> 32 #include <miiphy.h> 33 #include <mmc.h> 34 #include <netdev.h> 35 #include <power/pmic.h> 36 #include <power/pfuze100_pmic.h> 37 #include <stdio_dev.h> 38 39 #include "novena.h" 40 41 DECLARE_GLOBAL_DATA_PTR; 42 43 /* 44 * GPIO button 45 */ 46 #ifdef CONFIG_KEYBOARD 47 static struct input_config button_input; 48 49 static int novena_gpio_button_read_keys(struct input_config *input) 50 { 51 int key = KEY_ENTER; 52 if (gpio_get_value(NOVENA_BUTTON_GPIO)) 53 return 0; 54 input_send_keycodes(&button_input, &key, 1); 55 return 1; 56 } 57 58 static int novena_gpio_button_getc(struct stdio_dev *dev) 59 { 60 return input_getc(&button_input); 61 } 62 63 static int novena_gpio_button_tstc(struct stdio_dev *dev) 64 { 65 return input_tstc(&button_input); 66 } 67 68 static int novena_gpio_button_init(struct stdio_dev *dev) 69 { 70 gpio_direction_input(NOVENA_BUTTON_GPIO); 71 input_set_delays(&button_input, 250, 250); 72 return 0; 73 } 74 75 int drv_keyboard_init(void) 76 { 77 int error; 78 struct stdio_dev dev = { 79 .name = "button", 80 .flags = DEV_FLAGS_INPUT, 81 .start = novena_gpio_button_init, 82 .getc = novena_gpio_button_getc, 83 .tstc = novena_gpio_button_tstc, 84 }; 85 86 error = input_init(&button_input, 0); 87 if (error) { 88 debug("%s: Cannot set up input\n", __func__); 89 return -1; 90 } 91 button_input.read_keys = novena_gpio_button_read_keys; 92 93 error = input_stdio_register(&dev); 94 if (error) 95 return error; 96 97 return 0; 98 } 99 #endif 100 101 /* 102 * SDHC 103 */ 104 #ifdef CONFIG_FSL_ESDHC 105 static struct fsl_esdhc_cfg usdhc_cfg[] = { 106 { USDHC3_BASE_ADDR, 0, 4 }, /* Micro SD */ 107 { USDHC2_BASE_ADDR, 0, 4 }, /* Big SD */ 108 }; 109 110 int board_mmc_getcd(struct mmc *mmc) 111 { 112 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 113 114 /* There is no CD for a microSD card, assume always present. */ 115 if (cfg->esdhc_base == USDHC3_BASE_ADDR) 116 return 1; 117 else 118 return !gpio_get_value(NOVENA_SD_CD); 119 } 120 121 int board_mmc_getwp(struct mmc *mmc) 122 { 123 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 124 125 /* There is no WP for a microSD card, assume always read-write. */ 126 if (cfg->esdhc_base == USDHC3_BASE_ADDR) 127 return 0; 128 else 129 return gpio_get_value(NOVENA_SD_WP); 130 } 131 132 133 int board_mmc_init(bd_t *bis) 134 { 135 s32 status = 0; 136 int index; 137 138 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 139 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 140 141 /* Big SD write-protect and card-detect */ 142 gpio_direction_input(NOVENA_SD_WP); 143 gpio_direction_input(NOVENA_SD_CD); 144 145 for (index = 0; index < ARRAY_SIZE(usdhc_cfg); index++) { 146 status = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); 147 if (status) 148 return status; 149 } 150 151 return status; 152 } 153 #endif 154 155 int board_early_init_f(void) 156 { 157 #if defined(CONFIG_VIDEO_IPUV3) 158 setup_display_clock(); 159 #endif 160 161 return 0; 162 } 163 164 int board_init(void) 165 { 166 /* address of boot parameters */ 167 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 168 169 #ifdef CONFIG_CMD_SATA 170 setup_sata(); 171 #endif 172 173 return 0; 174 } 175 176 int board_late_init(void) 177 { 178 #if defined(CONFIG_VIDEO_IPUV3) 179 setup_display_lvds(); 180 #endif 181 return 0; 182 } 183 184 int checkboard(void) 185 { 186 puts("Board: Novena 4x\n"); 187 return 0; 188 } 189 190 int dram_init(void) 191 { 192 gd->ram_size = imx_ddr_size(); 193 return 0; 194 } 195 196 /* setup board specific PMIC */ 197 int power_init_board(void) 198 { 199 struct pmic *p; 200 u32 reg; 201 int ret; 202 203 power_pfuze100_init(1); 204 p = pmic_get("PFUZE100"); 205 if (!p) 206 return -EINVAL; 207 208 ret = pmic_probe(p); 209 if (ret) 210 return ret; 211 212 pmic_reg_read(p, PFUZE100_DEVICEID, ®); 213 printf("PMIC: PFUZE100 ID=0x%02x\n", reg); 214 215 /* Set SWBST to 5.0V and enable (for USB) */ 216 pmic_reg_read(p, PFUZE100_SWBSTCON1, ®); 217 reg &= ~(SWBST_MODE_MASK | SWBST_VOL_MASK); 218 reg |= (SWBST_5_00V | SWBST_MODE_AUTO); 219 pmic_reg_write(p, PFUZE100_SWBSTCON1, reg); 220 221 return 0; 222 } 223 224 /* EEPROM configuration data */ 225 struct novena_eeprom_data { 226 uint8_t signature[6]; 227 uint8_t version; 228 uint8_t reserved; 229 uint32_t serial; 230 uint8_t mac[6]; 231 uint16_t features; 232 }; 233 234 int misc_init_r(void) 235 { 236 struct novena_eeprom_data data; 237 uchar *datap = (uchar *)&data; 238 const char *signature = "Novena"; 239 int ret; 240 241 /* If 'ethaddr' is already set, do nothing. */ 242 if (getenv("ethaddr")) 243 return 0; 244 245 /* EEPROM is at bus 2. */ 246 ret = i2c_set_bus_num(2); 247 if (ret) { 248 puts("Cannot select EEPROM I2C bus.\n"); 249 return 0; 250 } 251 252 /* EEPROM is at address 0x56. */ 253 ret = eeprom_read(0x56, 0, datap, sizeof(data)); 254 if (ret) { 255 puts("Cannot read I2C EEPROM.\n"); 256 return 0; 257 } 258 259 /* Check EEPROM signature. */ 260 if (memcmp(data.signature, signature, 6)) { 261 puts("Invalid I2C EEPROM signature.\n"); 262 return 0; 263 } 264 265 /* Set ethernet address from EEPROM. */ 266 eth_setenv_enetaddr("ethaddr", data.mac); 267 268 return ret; 269 } 270