1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2012 Freescale Semiconductor, Inc.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
6 * Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x)
7 * Author: Markus Niebel <markus.niebel@tq-group.com>
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>
17 #include <fdt_support.h>
18 #include <linux/errno.h>
21 #include <asm/mach-imx/mxc_i2c.h>
22 #include <asm/mach-imx/spi.h>
24 #include <fsl_esdhc_imx.h>
25 #include <linux/libfdt.h>
28 #include <power/pfuze100_pmic.h>
29 #include <power/pmic.h>
30 #include <spi_flash.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 #define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
37 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
39 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
40 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
42 #define GPIO_OUT_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
43 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
45 #define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
46 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
48 #define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
49 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
51 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
52 PAD_CTL_DSE_80ohm | PAD_CTL_HYS | \
53 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
57 gd->ram_size = imx_ddr_size();
62 static const uint16_t tqma6_emmc_dsr = 0x0100;
65 /* eMMC on USDHCI3 always present */
66 static iomux_v3_cfg_t const tqma6_usdhc3_pads[] = {
67 NEW_PAD_CTRL(MX6_PAD_SD3_CLK__SD3_CLK, USDHC_PAD_CTRL),
68 NEW_PAD_CTRL(MX6_PAD_SD3_CMD__SD3_CMD, USDHC_PAD_CTRL),
69 NEW_PAD_CTRL(MX6_PAD_SD3_DAT0__SD3_DATA0, USDHC_PAD_CTRL),
70 NEW_PAD_CTRL(MX6_PAD_SD3_DAT1__SD3_DATA1, USDHC_PAD_CTRL),
71 NEW_PAD_CTRL(MX6_PAD_SD3_DAT2__SD3_DATA2, USDHC_PAD_CTRL),
72 NEW_PAD_CTRL(MX6_PAD_SD3_DAT3__SD3_DATA3, USDHC_PAD_CTRL),
73 NEW_PAD_CTRL(MX6_PAD_SD3_DAT4__SD3_DATA4, USDHC_PAD_CTRL),
74 NEW_PAD_CTRL(MX6_PAD_SD3_DAT5__SD3_DATA5, USDHC_PAD_CTRL),
75 NEW_PAD_CTRL(MX6_PAD_SD3_DAT6__SD3_DATA6, USDHC_PAD_CTRL),
76 NEW_PAD_CTRL(MX6_PAD_SD3_DAT7__SD3_DATA7, USDHC_PAD_CTRL),
78 NEW_PAD_CTRL(MX6_PAD_SD3_RST__SD3_RESET, GPIO_OUT_PAD_CTRL),
82 * According to board_mmc_init() the following map is done:
83 * (U-Boot device node) (Physical Port)
84 * mmc0 eMMC (SD3) on TQMa6
85 * mmc1 .. n optional slots used on baseboard
87 struct fsl_esdhc_cfg tqma6_usdhc_cfg = {
88 .esdhc_base = USDHC3_BASE_ADDR,
92 int board_mmc_getcd(struct mmc *mmc)
94 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
97 if (cfg->esdhc_base == USDHC3_BASE_ADDR)
98 /* eMMC/uSDHC3 is always present */
101 ret = tqma6_bb_board_mmc_getcd(mmc);
106 int board_mmc_getwp(struct mmc *mmc)
108 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
111 if (cfg->esdhc_base == USDHC3_BASE_ADDR)
112 /* eMMC/uSDHC3 is always present */
115 ret = tqma6_bb_board_mmc_getwp(mmc);
120 int board_mmc_init(bd_t *bis)
122 imx_iomux_v3_setup_multiple_pads(tqma6_usdhc3_pads,
123 ARRAY_SIZE(tqma6_usdhc3_pads));
124 tqma6_usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
125 if (fsl_esdhc_initialize(bis, &tqma6_usdhc_cfg)) {
126 puts("Warning: failed to initialize eMMC dev\n");
128 struct mmc *mmc = find_mmc_device(0);
130 mmc_set_dsr(mmc, tqma6_emmc_dsr);
133 tqma6_bb_board_mmc_init(bis);
139 #ifndef CONFIG_DM_SPI
140 static iomux_v3_cfg_t const tqma6_ecspi1_pads[] = {
142 NEW_PAD_CTRL(MX6_PAD_EIM_D19__GPIO3_IO19, SPI_PAD_CTRL),
143 NEW_PAD_CTRL(MX6_PAD_EIM_D16__ECSPI1_SCLK, SPI_PAD_CTRL),
144 NEW_PAD_CTRL(MX6_PAD_EIM_D17__ECSPI1_MISO, SPI_PAD_CTRL),
145 NEW_PAD_CTRL(MX6_PAD_EIM_D18__ECSPI1_MOSI, SPI_PAD_CTRL),
148 #define TQMA6_SF_CS_GPIO IMX_GPIO_NR(3, 19)
150 static unsigned const tqma6_ecspi1_cs[] = {
154 __weak void tqma6_iomuxc_spi(void)
158 for (i = 0; i < ARRAY_SIZE(tqma6_ecspi1_cs); ++i)
159 gpio_direction_output(tqma6_ecspi1_cs[i], 1);
160 imx_iomux_v3_setup_multiple_pads(tqma6_ecspi1_pads,
161 ARRAY_SIZE(tqma6_ecspi1_pads));
164 #if defined(CONFIG_SF_DEFAULT_BUS) && defined(CONFIG_SF_DEFAULT_CS)
165 int board_spi_cs_gpio(unsigned bus, unsigned cs)
167 return ((bus == CONFIG_SF_DEFAULT_BUS) &&
168 (cs == CONFIG_SF_DEFAULT_CS)) ? TQMA6_SF_CS_GPIO : -1;
173 #ifdef CONFIG_SYS_I2C
174 static struct i2c_pads_info tqma6_i2c3_pads = {
175 /* I2C3: on board LM75, M24C64, */
177 .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__I2C3_SCL,
179 .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__GPIO1_IO05,
181 .gp = IMX_GPIO_NR(1, 5)
184 .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__I2C3_SDA,
186 .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06,
188 .gp = IMX_GPIO_NR(1, 6)
192 static void tqma6_setup_i2c(void)
196 * use logical index for bus, e.g. I2C1 -> 0
199 ret = setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &tqma6_i2c3_pads);
201 printf("setup I2C3 failed: %d\n", ret);
205 int board_early_init_f(void)
207 return tqma6_bb_board_early_init_f();
212 /* address of boot parameters */
213 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
215 #ifndef CONFIG_DM_SPI
218 #ifdef CONFIG_SYS_I2C
222 tqma6_bb_board_init();
227 static const char *tqma6_get_boardname(void)
229 u32 cpurev = get_cpu_rev();
231 switch ((cpurev & 0xFF000) >> 12) {
232 case MXC_CPU_MX6SOLO:
250 /* setup board specific PMIC */
251 int power_init_board(void)
256 power_pfuze100_init(TQMA6_PFUZE100_I2C_BUS);
257 p = pmic_get("PFUZE100");
258 if (p && !pmic_probe(p)) {
259 pmic_reg_read(p, PFUZE100_DEVICEID, ®);
260 pmic_reg_read(p, PFUZE100_REVID, &rev);
261 printf("PMIC: PFUZE100 ID=0x%02x REV=0x%02x\n", reg, rev);
268 int board_late_init(void)
270 env_set("board_name", tqma6_get_boardname());
272 tqma6_bb_board_late_init();
279 printf("Board: %s on a %s\n", tqma6_get_boardname(),
280 tqma6_bb_get_boardname());
285 * Device Tree Support
287 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
288 #define MODELSTRLEN 32u
289 int ft_board_setup(void *blob, bd_t *bd)
291 char modelstr[MODELSTRLEN];
293 snprintf(modelstr, MODELSTRLEN, "TQ %s on %s", tqma6_get_boardname(),
294 tqma6_bb_get_boardname());
295 do_fixup_by_path_string(blob, "/", "model", modelstr);
296 fdt_fixup_memory(blob, (u64)PHYS_SDRAM, (u64)gd->ram_size);
297 /* bring in eMMC dsr settings */
298 do_fixup_by_path_u32(blob,
299 "/soc/aips-bus@02100000/usdhc@02198000",
300 "dsr", tqma6_emmc_dsr, 2);
301 tqma6_bb_ft_board_setup(blob, bd);
305 #endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */