Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Freescale Semiconductor, Inc. |
| 3 | * Author: Fabio Estevam <fabio.estevam@freescale.com> |
| 4 | * |
| 5 | * Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x) |
| 6 | * Author: Markus Niebel <markus.niebel@tq-group.com> |
| 7 | * |
| 8 | * SPDX-License-Identifier: GPL-2.0+ |
| 9 | */ |
| 10 | |
| 11 | #include <asm/arch/clock.h> |
| 12 | #include <asm/arch/mx6-pins.h> |
| 13 | #include <asm/arch/imx-regs.h> |
| 14 | #include <asm/arch/iomux.h> |
| 15 | #include <asm/arch/sys_proto.h> |
Masahiro Yamada | 1221ce4 | 2016-09-21 11:28:55 +0900 | [diff] [blame] | 16 | #include <linux/errno.h> |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 17 | #include <asm/gpio.h> |
| 18 | #include <asm/io.h> |
Stefano Babic | 552a848 | 2017-06-29 10:16:06 +0200 | [diff] [blame] | 19 | #include <asm/mach-imx/mxc_i2c.h> |
| 20 | #include <asm/mach-imx/spi.h> |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 21 | #include <common.h> |
| 22 | #include <fsl_esdhc.h> |
| 23 | #include <libfdt.h> |
| 24 | #include <i2c.h> |
| 25 | #include <mmc.h> |
| 26 | #include <power/pfuze100_pmic.h> |
| 27 | #include <power/pmic.h> |
Stefan Roese | 8b8ca0d | 2015-08-05 10:50:50 +0200 | [diff] [blame] | 28 | #include <spi_flash.h> |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 29 | |
| 30 | #include "tqma6_bb.h" |
| 31 | |
| 32 | DECLARE_GLOBAL_DATA_PTR; |
| 33 | |
| 34 | #define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \ |
| 35 | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) |
| 36 | |
| 37 | #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \ |
| 38 | PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) |
| 39 | |
| 40 | #define GPIO_OUT_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \ |
| 41 | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) |
| 42 | |
| 43 | #define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \ |
| 44 | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) |
| 45 | |
| 46 | #define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ |
| 47 | PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) |
| 48 | |
| 49 | #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ |
Markus Niebel | 03cfff0 | 2017-02-03 16:24:59 +0100 | [diff] [blame] | 50 | PAD_CTL_DSE_80ohm | PAD_CTL_HYS | \ |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 51 | PAD_CTL_ODE | PAD_CTL_SRE_FAST) |
| 52 | |
| 53 | int dram_init(void) |
| 54 | { |
Markus Niebel | b6d7810 | 2014-11-18 13:22:57 +0100 | [diff] [blame] | 55 | gd->ram_size = imx_ddr_size(); |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 56 | |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | static const uint16_t tqma6_emmc_dsr = 0x0100; |
| 61 | |
| 62 | /* eMMC on USDHCI3 always present */ |
| 63 | static iomux_v3_cfg_t const tqma6_usdhc3_pads[] = { |
| 64 | NEW_PAD_CTRL(MX6_PAD_SD3_CLK__SD3_CLK, USDHC_PAD_CTRL), |
| 65 | NEW_PAD_CTRL(MX6_PAD_SD3_CMD__SD3_CMD, USDHC_PAD_CTRL), |
| 66 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT0__SD3_DATA0, USDHC_PAD_CTRL), |
| 67 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT1__SD3_DATA1, USDHC_PAD_CTRL), |
| 68 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT2__SD3_DATA2, USDHC_PAD_CTRL), |
| 69 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT3__SD3_DATA3, USDHC_PAD_CTRL), |
| 70 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT4__SD3_DATA4, USDHC_PAD_CTRL), |
| 71 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT5__SD3_DATA5, USDHC_PAD_CTRL), |
| 72 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT6__SD3_DATA6, USDHC_PAD_CTRL), |
| 73 | NEW_PAD_CTRL(MX6_PAD_SD3_DAT7__SD3_DATA7, USDHC_PAD_CTRL), |
| 74 | /* eMMC reset */ |
| 75 | NEW_PAD_CTRL(MX6_PAD_SD3_RST__SD3_RESET, GPIO_OUT_PAD_CTRL), |
| 76 | }; |
| 77 | |
| 78 | /* |
| 79 | * According to board_mmc_init() the following map is done: |
Bin Meng | a187559 | 2016-02-05 19:30:11 -0800 | [diff] [blame] | 80 | * (U-Boot device node) (Physical Port) |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 81 | * mmc0 eMMC (SD3) on TQMa6 |
| 82 | * mmc1 .. n optional slots used on baseboard |
| 83 | */ |
| 84 | struct fsl_esdhc_cfg tqma6_usdhc_cfg = { |
| 85 | .esdhc_base = USDHC3_BASE_ADDR, |
| 86 | .max_bus_width = 8, |
| 87 | }; |
| 88 | |
| 89 | int board_mmc_getcd(struct mmc *mmc) |
| 90 | { |
| 91 | struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; |
| 92 | int ret = 0; |
| 93 | |
| 94 | if (cfg->esdhc_base == USDHC3_BASE_ADDR) |
| 95 | /* eMMC/uSDHC3 is always present */ |
| 96 | ret = 1; |
| 97 | else |
| 98 | ret = tqma6_bb_board_mmc_getcd(mmc); |
| 99 | |
| 100 | return ret; |
| 101 | } |
| 102 | |
| 103 | int board_mmc_getwp(struct mmc *mmc) |
| 104 | { |
| 105 | struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; |
| 106 | int ret = 0; |
| 107 | |
| 108 | if (cfg->esdhc_base == USDHC3_BASE_ADDR) |
| 109 | /* eMMC/uSDHC3 is always present */ |
| 110 | ret = 0; |
| 111 | else |
| 112 | ret = tqma6_bb_board_mmc_getwp(mmc); |
| 113 | |
| 114 | return ret; |
| 115 | } |
| 116 | |
| 117 | int board_mmc_init(bd_t *bis) |
| 118 | { |
| 119 | imx_iomux_v3_setup_multiple_pads(tqma6_usdhc3_pads, |
| 120 | ARRAY_SIZE(tqma6_usdhc3_pads)); |
| 121 | tqma6_usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); |
| 122 | if (fsl_esdhc_initialize(bis, &tqma6_usdhc_cfg)) { |
| 123 | puts("Warning: failed to initialize eMMC dev\n"); |
| 124 | } else { |
| 125 | struct mmc *mmc = find_mmc_device(0); |
| 126 | if (mmc) |
| 127 | mmc_set_dsr(mmc, tqma6_emmc_dsr); |
| 128 | } |
| 129 | |
| 130 | tqma6_bb_board_mmc_init(bis); |
| 131 | |
| 132 | return 0; |
| 133 | } |
| 134 | |
| 135 | static iomux_v3_cfg_t const tqma6_ecspi1_pads[] = { |
| 136 | /* SS1 */ |
| 137 | NEW_PAD_CTRL(MX6_PAD_EIM_D19__GPIO3_IO19, SPI_PAD_CTRL), |
| 138 | NEW_PAD_CTRL(MX6_PAD_EIM_D16__ECSPI1_SCLK, SPI_PAD_CTRL), |
| 139 | NEW_PAD_CTRL(MX6_PAD_EIM_D17__ECSPI1_MISO, SPI_PAD_CTRL), |
| 140 | NEW_PAD_CTRL(MX6_PAD_EIM_D18__ECSPI1_MOSI, SPI_PAD_CTRL), |
| 141 | }; |
| 142 | |
Markus Niebel | 1719d49 | 2014-10-23 15:47:05 +0200 | [diff] [blame] | 143 | #define TQMA6_SF_CS_GPIO IMX_GPIO_NR(3, 19) |
| 144 | |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 145 | static unsigned const tqma6_ecspi1_cs[] = { |
Markus Niebel | 1719d49 | 2014-10-23 15:47:05 +0200 | [diff] [blame] | 146 | TQMA6_SF_CS_GPIO, |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 147 | }; |
| 148 | |
Stefan Roese | 34ee786 | 2015-03-12 13:34:30 +0100 | [diff] [blame] | 149 | __weak void tqma6_iomuxc_spi(void) |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 150 | { |
| 151 | unsigned i; |
| 152 | |
| 153 | for (i = 0; i < ARRAY_SIZE(tqma6_ecspi1_cs); ++i) |
| 154 | gpio_direction_output(tqma6_ecspi1_cs[i], 1); |
| 155 | imx_iomux_v3_setup_multiple_pads(tqma6_ecspi1_pads, |
| 156 | ARRAY_SIZE(tqma6_ecspi1_pads)); |
| 157 | } |
| 158 | |
Markus Niebel | 1719d49 | 2014-10-23 15:47:05 +0200 | [diff] [blame] | 159 | int board_spi_cs_gpio(unsigned bus, unsigned cs) |
| 160 | { |
| 161 | return ((bus == CONFIG_SF_DEFAULT_BUS) && |
| 162 | (cs == CONFIG_SF_DEFAULT_CS)) ? TQMA6_SF_CS_GPIO : -1; |
| 163 | } |
| 164 | |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 165 | static struct i2c_pads_info tqma6_i2c3_pads = { |
| 166 | /* I2C3: on board LM75, M24C64, */ |
| 167 | .scl = { |
| 168 | .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__I2C3_SCL, |
| 169 | I2C_PAD_CTRL), |
| 170 | .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__GPIO1_IO05, |
| 171 | I2C_PAD_CTRL), |
| 172 | .gp = IMX_GPIO_NR(1, 5) |
| 173 | }, |
| 174 | .sda = { |
| 175 | .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__I2C3_SDA, |
| 176 | I2C_PAD_CTRL), |
| 177 | .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06, |
| 178 | I2C_PAD_CTRL), |
| 179 | .gp = IMX_GPIO_NR(1, 6) |
| 180 | } |
| 181 | }; |
| 182 | |
| 183 | static void tqma6_setup_i2c(void) |
| 184 | { |
Markus Niebel | fd53ec5 | 2014-11-18 13:22:56 +0100 | [diff] [blame] | 185 | int ret; |
| 186 | /* |
| 187 | * use logical index for bus, e.g. I2C1 -> 0 |
| 188 | * warn on error |
| 189 | */ |
| 190 | ret = setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &tqma6_i2c3_pads); |
| 191 | if (ret) |
| 192 | printf("setup I2C3 failed: %d\n", ret); |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | int board_early_init_f(void) |
| 196 | { |
| 197 | return tqma6_bb_board_early_init_f(); |
| 198 | } |
| 199 | |
| 200 | int board_init(void) |
| 201 | { |
| 202 | /* address of boot parameters */ |
| 203 | gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; |
| 204 | |
| 205 | tqma6_iomuxc_spi(); |
| 206 | tqma6_setup_i2c(); |
| 207 | |
| 208 | tqma6_bb_board_init(); |
| 209 | |
| 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | static const char *tqma6_get_boardname(void) |
| 214 | { |
| 215 | u32 cpurev = get_cpu_rev(); |
| 216 | |
| 217 | switch ((cpurev & 0xFF000) >> 12) { |
| 218 | case MXC_CPU_MX6SOLO: |
| 219 | return "TQMa6S"; |
| 220 | break; |
| 221 | case MXC_CPU_MX6DL: |
| 222 | return "TQMa6DL"; |
| 223 | break; |
| 224 | case MXC_CPU_MX6D: |
| 225 | return "TQMa6D"; |
| 226 | break; |
| 227 | case MXC_CPU_MX6Q: |
| 228 | return "TQMa6Q"; |
| 229 | break; |
| 230 | default: |
| 231 | return "??"; |
| 232 | }; |
| 233 | } |
| 234 | |
Markus Niebel | d7d8e8e | 2017-02-03 16:24:58 +0100 | [diff] [blame] | 235 | /* setup board specific PMIC */ |
| 236 | int power_init_board(void) |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 237 | { |
| 238 | struct pmic *p; |
Markus Niebel | d7d8e8e | 2017-02-03 16:24:58 +0100 | [diff] [blame] | 239 | u32 reg, rev; |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 240 | |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 241 | power_pfuze100_init(TQMA6_PFUZE100_I2C_BUS); |
Fabio Estevam | 676ac24 | 2014-08-01 08:50:03 -0300 | [diff] [blame] | 242 | p = pmic_get("PFUZE100"); |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 243 | if (p && !pmic_probe(p)) { |
| 244 | pmic_reg_read(p, PFUZE100_DEVICEID, ®); |
Markus Niebel | d7d8e8e | 2017-02-03 16:24:58 +0100 | [diff] [blame] | 245 | pmic_reg_read(p, PFUZE100_REVID, &rev); |
| 246 | printf("PMIC: PFUZE100 ID=0x%02x REV=0x%02x\n", reg, rev); |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 247 | } |
| 248 | |
Markus Niebel | d7d8e8e | 2017-02-03 16:24:58 +0100 | [diff] [blame] | 249 | return 0; |
| 250 | } |
| 251 | |
| 252 | int board_late_init(void) |
| 253 | { |
Simon Glass | 382bee5 | 2017-08-03 12:22:09 -0600 | [diff] [blame] | 254 | env_set("board_name", tqma6_get_boardname()); |
Markus Niebel | d7d8e8e | 2017-02-03 16:24:58 +0100 | [diff] [blame] | 255 | |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 256 | tqma6_bb_board_late_init(); |
| 257 | |
| 258 | return 0; |
| 259 | } |
| 260 | |
| 261 | int checkboard(void) |
| 262 | { |
| 263 | printf("Board: %s on a %s\n", tqma6_get_boardname(), |
| 264 | tqma6_bb_get_boardname()); |
| 265 | return 0; |
| 266 | } |
| 267 | |
| 268 | /* |
| 269 | * Device Tree Support |
| 270 | */ |
| 271 | #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) |
Markus Niebel | 468fb1e | 2017-02-28 16:37:33 +0100 | [diff] [blame] | 272 | #define MODELSTRLEN 32u |
Simon Glass | e895a4b | 2014-10-23 18:58:47 -0600 | [diff] [blame] | 273 | int ft_board_setup(void *blob, bd_t *bd) |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 274 | { |
Markus Niebel | 468fb1e | 2017-02-28 16:37:33 +0100 | [diff] [blame] | 275 | char modelstr[MODELSTRLEN]; |
| 276 | |
| 277 | snprintf(modelstr, MODELSTRLEN, "TQ %s on %s", tqma6_get_boardname(), |
| 278 | tqma6_bb_get_boardname()); |
| 279 | do_fixup_by_path_string(blob, "/", "model", modelstr); |
| 280 | fdt_fixup_memory(blob, (u64)PHYS_SDRAM, (u64)gd->ram_size); |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 281 | /* bring in eMMC dsr settings */ |
| 282 | do_fixup_by_path_u32(blob, |
| 283 | "/soc/aips-bus@02100000/usdhc@02198000", |
| 284 | "dsr", tqma6_emmc_dsr, 2); |
| 285 | tqma6_bb_ft_board_setup(blob, bd); |
Simon Glass | e895a4b | 2014-10-23 18:58:47 -0600 | [diff] [blame] | 286 | |
| 287 | return 0; |
Markus Niebel | cb07d74 | 2014-07-18 16:52:44 +0200 | [diff] [blame] | 288 | } |
| 289 | #endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */ |