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 <linux/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/mach-imx/boot_mode.h> 20 #include <asm/mach-imx/iomux-v3.h> 21 #include <asm/mach-imx/mxc_i2c.h> 22 #include <asm/mach-imx/sata.h> 23 #include <asm/mach-imx/video.h> 24 #include <environment.h> 25 #include <fsl_esdhc.h> 26 #include <i2c.h> 27 #include <input.h> 28 #include <ipu_pixfmt.h> 29 #include <linux/fb.h> 30 #include <linux/input.h> 31 #include <malloc.h> 32 #include <micrel.h> 33 #include <miiphy.h> 34 #include <mmc.h> 35 #include <netdev.h> 36 #include <power/pmic.h> 37 #include <power/pfuze100_pmic.h> 38 #include <stdio_dev.h> 39 40 #include "novena.h" 41 42 DECLARE_GLOBAL_DATA_PTR; 43 44 /* 45 * GPIO button 46 */ 47 #ifdef CONFIG_KEYBOARD 48 static struct input_config button_input; 49 50 static int novena_gpio_button_read_keys(struct input_config *input) 51 { 52 int key = KEY_ENTER; 53 if (gpio_get_value(NOVENA_BUTTON_GPIO)) 54 return 0; 55 input_send_keycodes(&button_input, &key, 1); 56 return 1; 57 } 58 59 static int novena_gpio_button_getc(struct stdio_dev *dev) 60 { 61 return input_getc(&button_input); 62 } 63 64 static int novena_gpio_button_tstc(struct stdio_dev *dev) 65 { 66 return input_tstc(&button_input); 67 } 68 69 static int novena_gpio_button_init(struct stdio_dev *dev) 70 { 71 gpio_direction_input(NOVENA_BUTTON_GPIO); 72 input_set_delays(&button_input, 250, 250); 73 return 0; 74 } 75 76 int drv_keyboard_init(void) 77 { 78 int error; 79 struct stdio_dev dev = { 80 .name = "button", 81 .flags = DEV_FLAGS_INPUT, 82 .start = novena_gpio_button_init, 83 .getc = novena_gpio_button_getc, 84 .tstc = novena_gpio_button_tstc, 85 }; 86 87 error = input_init(&button_input, 0); 88 if (error) { 89 debug("%s: Cannot set up input\n", __func__); 90 return -1; 91 } 92 input_add_tables(&button_input, false); 93 button_input.read_keys = novena_gpio_button_read_keys; 94 95 error = input_stdio_register(&dev); 96 if (error) 97 return error; 98 99 return 0; 100 } 101 #endif 102 103 /* 104 * SDHC 105 */ 106 #ifdef CONFIG_FSL_ESDHC 107 static struct fsl_esdhc_cfg usdhc_cfg[] = { 108 { USDHC3_BASE_ADDR, 0, 4 }, /* Micro SD */ 109 { USDHC2_BASE_ADDR, 0, 4 }, /* Big SD */ 110 }; 111 112 int board_mmc_getcd(struct mmc *mmc) 113 { 114 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 115 116 /* There is no CD for a microSD card, assume always present. */ 117 if (cfg->esdhc_base == USDHC3_BASE_ADDR) 118 return 1; 119 else 120 return !gpio_get_value(NOVENA_SD_CD); 121 } 122 123 int board_mmc_getwp(struct mmc *mmc) 124 { 125 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 126 127 /* There is no WP for a microSD card, assume always read-write. */ 128 if (cfg->esdhc_base == USDHC3_BASE_ADDR) 129 return 0; 130 else 131 return gpio_get_value(NOVENA_SD_WP); 132 } 133 134 135 int board_mmc_init(bd_t *bis) 136 { 137 s32 status = 0; 138 int index; 139 140 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 141 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 142 143 /* Big SD write-protect and card-detect */ 144 gpio_direction_input(NOVENA_SD_WP); 145 gpio_direction_input(NOVENA_SD_CD); 146 147 for (index = 0; index < ARRAY_SIZE(usdhc_cfg); index++) { 148 status = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); 149 if (status) 150 return status; 151 } 152 153 return status; 154 } 155 #endif 156 157 int board_early_init_f(void) 158 { 159 #if defined(CONFIG_VIDEO_IPUV3) 160 setup_display_clock(); 161 #endif 162 163 return 0; 164 } 165 166 int board_init(void) 167 { 168 /* address of boot parameters */ 169 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 170 171 #ifdef CONFIG_SATA 172 setup_sata(); 173 #endif 174 175 return 0; 176 } 177 178 int board_late_init(void) 179 { 180 #if defined(CONFIG_VIDEO_IPUV3) 181 setup_display_lvds(); 182 #endif 183 return 0; 184 } 185 186 int checkboard(void) 187 { 188 puts("Board: Novena 4x\n"); 189 return 0; 190 } 191 192 int dram_init(void) 193 { 194 gd->ram_size = imx_ddr_size(); 195 return 0; 196 } 197 198 /* setup board specific PMIC */ 199 int power_init_board(void) 200 { 201 struct pmic *p; 202 u32 reg; 203 int ret; 204 205 power_pfuze100_init(1); 206 p = pmic_get("PFUZE100"); 207 if (!p) 208 return -EINVAL; 209 210 ret = pmic_probe(p); 211 if (ret) 212 return ret; 213 214 pmic_reg_read(p, PFUZE100_DEVICEID, ®); 215 printf("PMIC: PFUZE100 ID=0x%02x\n", reg); 216 217 /* Set SWBST to 5.0V and enable (for USB) */ 218 pmic_reg_read(p, PFUZE100_SWBSTCON1, ®); 219 reg &= ~(SWBST_MODE_MASK | SWBST_VOL_MASK); 220 reg |= (SWBST_5_00V | (SWBST_MODE_AUTO << SWBST_MODE_SHIFT)); 221 pmic_reg_write(p, PFUZE100_SWBSTCON1, reg); 222 223 return 0; 224 } 225 226 /* EEPROM configuration data */ 227 struct novena_eeprom_data { 228 uint8_t signature[6]; 229 uint8_t version; 230 uint8_t reserved; 231 uint32_t serial; 232 uint8_t mac[6]; 233 uint16_t features; 234 }; 235 236 int misc_init_r(void) 237 { 238 struct novena_eeprom_data data; 239 uchar *datap = (uchar *)&data; 240 const char *signature = "Novena"; 241 int ret; 242 243 /* If 'ethaddr' is already set, do nothing. */ 244 if (env_get("ethaddr")) 245 return 0; 246 247 /* EEPROM is at bus 2. */ 248 ret = i2c_set_bus_num(2); 249 if (ret) { 250 puts("Cannot select EEPROM I2C bus.\n"); 251 return 0; 252 } 253 254 /* EEPROM is at address 0x56. */ 255 ret = eeprom_read(0x56, 0, datap, sizeof(data)); 256 if (ret) { 257 puts("Cannot read I2C EEPROM.\n"); 258 return 0; 259 } 260 261 /* Check EEPROM signature. */ 262 if (memcmp(data.signature, signature, 6)) { 263 puts("Invalid I2C EEPROM signature.\n"); 264 return 0; 265 } 266 267 /* Set ethernet address from EEPROM. */ 268 eth_env_set_enetaddr("ethaddr", data.mac); 269 270 return ret; 271 } 272