1 // SPDX-License-Identifier: GPL-2.0+
10 #include <asm/arch/clock.h>
11 #include <asm/arch/ddr.h>
12 #include <asm/arch/imx8mq_pins.h>
13 #include <asm/arch/sys_proto.h>
15 #include <asm/mach-imx/gpio.h>
16 #include <asm/mach-imx/iomux-v3.h>
17 #include <asm/mach-imx/mxc_i2c.h>
18 #include <linux/delay.h>
20 #include <fsl_esdhc_imx.h>
24 #include "lpddr4_timing.h"
26 DECLARE_GLOBAL_DATA_PTR;
28 #define DDR_DET_1 IMX_GPIO_NR(3, 11)
29 #define DDR_DET_2 IMX_GPIO_NR(3, 12)
30 #define DDR_DET_3 IMX_GPIO_NR(3, 13)
32 static iomux_v3_cfg_t const verdet_pads[] = {
33 IMX8MQ_PAD_NAND_DATA01__GPIO3_IO7 | MUX_PAD_CTRL(NO_PAD_CTRL),
34 IMX8MQ_PAD_NAND_DATA02__GPIO3_IO8 | MUX_PAD_CTRL(NO_PAD_CTRL),
35 IMX8MQ_PAD_NAND_DATA03__GPIO3_IO9 | MUX_PAD_CTRL(NO_PAD_CTRL),
36 IMX8MQ_PAD_NAND_DATA04__GPIO3_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
37 IMX8MQ_PAD_NAND_DATA05__GPIO3_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
38 IMX8MQ_PAD_NAND_DATA06__GPIO3_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),
39 IMX8MQ_PAD_NAND_DATA07__GPIO3_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL),
43 * DDR_DET_1 DDR_DET_2 DDR_DET_3
49 static void spl_dram_init(void)
51 struct dram_timing_info *dram_timing;
54 imx_iomux_v3_setup_multiple_pads(verdet_pads, ARRAY_SIZE(verdet_pads));
56 gpio_request(DDR_DET_1, "ddr_det_1");
57 gpio_direction_input(DDR_DET_1);
58 gpio_request(DDR_DET_2, "ddr_det_2");
59 gpio_direction_input(DDR_DET_2);
60 gpio_request(DDR_DET_3, "ddr_det_3");
61 gpio_direction_input(DDR_DET_3);
63 ddr |= !!gpio_get_value(DDR_DET_3) << 0;
64 ddr |= !!gpio_get_value(DDR_DET_2) << 1;
65 ddr |= !!gpio_get_value(DDR_DET_1) << 2;
70 dram_timing = &dram_timing_4gb;
74 dram_timing = &dram_timing_3gb;
78 dram_timing = &dram_timing_2gb;
82 dram_timing = &dram_timing_1gb;
85 puts("Unknown DDR type!!!\n");
89 printf("%s: LPDDR4 %d GiB\n", __func__, size);
90 ddr_init(dram_timing);
91 writel(size, M4_BOOTROM_BASE_ADDR);
94 #define USDHC2_CD_GPIO IMX_GPIO_NR(2, 12)
95 #define USDHC1_PWR_GPIO IMX_GPIO_NR(2, 10)
96 #define USDHC2_PWR_GPIO IMX_GPIO_NR(2, 19)
98 int board_mmc_getcd(struct mmc *mmc)
100 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
103 switch (cfg->esdhc_base) {
104 case USDHC1_BASE_ADDR:
107 case USDHC2_BASE_ADDR:
108 ret = !gpio_get_value(USDHC2_CD_GPIO);
115 #define USDHC_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | \
117 #define USDHC_GPIO_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_DSE1)
119 static iomux_v3_cfg_t const usdhc1_pads[] = {
120 IMX8MQ_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
121 IMX8MQ_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
122 IMX8MQ_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
123 IMX8MQ_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
124 IMX8MQ_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
125 IMX8MQ_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
126 IMX8MQ_PAD_SD1_DATA4__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
127 IMX8MQ_PAD_SD1_DATA5__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
128 IMX8MQ_PAD_SD1_DATA6__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
129 IMX8MQ_PAD_SD1_DATA7__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
130 IMX8MQ_PAD_SD1_RESET_B__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
133 static iomux_v3_cfg_t const usdhc2_pads[] = {
134 IMX8MQ_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
135 IMX8MQ_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
136 IMX8MQ_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
137 IMX8MQ_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
138 IMX8MQ_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
139 IMX8MQ_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
140 IMX8MQ_PAD_SD2_CD_B__GPIO2_IO12 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL),
141 IMX8MQ_PAD_SD2_RESET_B__GPIO2_IO19 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL),
144 static struct fsl_esdhc_cfg usdhc_cfg[2] = {
145 {USDHC1_BASE_ADDR, 0, 8},
146 {USDHC2_BASE_ADDR, 0, 4},
149 int board_mmc_init(bd_t *bis)
153 * According to the board_mmc_init() the following map is done:
154 * (U-Boot device node) (Physical Port)
159 usdhc_cfg[0].sdhc_clk = mxc_get_clock(USDHC1_CLK_ROOT);
160 imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
161 gpio_request(USDHC1_PWR_GPIO, "usdhc1_reset");
162 gpio_direction_output(USDHC1_PWR_GPIO, 0);
164 gpio_direction_output(USDHC1_PWR_GPIO, 1);
165 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
170 usdhc_cfg[1].sdhc_clk = mxc_get_clock(USDHC2_CLK_ROOT);
171 imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
172 gpio_request(USDHC2_PWR_GPIO, "usdhc2_reset");
173 gpio_direction_output(USDHC2_PWR_GPIO, 0);
175 gpio_direction_output(USDHC2_PWR_GPIO, 1);
176 return fsl_esdhc_initialize(bis, &usdhc_cfg[1]);
179 void spl_board_init(void)
181 puts("Normal Boot\n");
184 #ifdef CONFIG_SPL_LOAD_FIT
185 int board_fit_config_name_match(const char *name)
187 /* Just empty function now - can't decide what to choose */
188 debug("%s: %s\n", __func__, name);
194 void board_init_f(ulong dummy)
198 /* Clear global data */
199 memset((void *)gd, 0, sizeof(gd_t));
205 board_early_init_f();
209 preloader_console_init();
212 memset(__bss_start, 0, __bss_end - __bss_start);
216 debug("spl_init() failed: %d\n", ret);
222 /* DDR initialization */
225 board_init_r(NULL, 0);