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ef99f3d9 AM |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * Copyright 2020 NXP | |
4 | * | |
5 | */ | |
6 | ||
d678a59d | 7 | #include <common.h> |
ef99f3d9 | 8 | #include <hang.h> |
401d1c4f | 9 | #include <asm/global_data.h> |
ef99f3d9 AM |
10 | #include <asm/io.h> |
11 | #include <errno.h> | |
f7ae49fc SG |
12 | #include <init.h> |
13 | #include <log.h> | |
ef99f3d9 AM |
14 | #include <asm/io.h> |
15 | #include <asm/arch/ddr.h> | |
16 | #include <asm/arch/imx8mq_pins.h> | |
17 | #include <asm/arch/sys_proto.h> | |
18 | #include <asm/arch/clock.h> | |
19 | #include <asm/mach-imx/iomux-v3.h> | |
20 | #include <asm/mach-imx/gpio.h> | |
21 | #include <asm/mach-imx/mxc_i2c.h> | |
22 | #include <asm/sections.h> | |
c05ed00a | 23 | #include <linux/delay.h> |
ef99f3d9 AM |
24 | #include <fsl_esdhc_imx.h> |
25 | #include <mmc.h> | |
26 | #include <spl.h> | |
27 | ||
28 | DECLARE_GLOBAL_DATA_PTR; | |
29 | ||
30 | static void spl_dram_init(void) | |
31 | { | |
32 | /* ddr init */ | |
33 | ddr_init(&dram_timing); | |
34 | } | |
35 | ||
36 | #define USDHC2_CD_GPIO IMX_GPIO_NR(2, 12) | |
37 | #define USDHC1_PWR_GPIO IMX_GPIO_NR(2, 10) | |
38 | #define USDHC2_PWR_GPIO IMX_GPIO_NR(2, 19) | |
39 | ||
40 | int board_mmc_getcd(struct mmc *mmc) | |
41 | { | |
42 | struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; | |
43 | int ret = 0; | |
44 | ||
45 | switch (cfg->esdhc_base) { | |
46 | case USDHC1_BASE_ADDR: | |
47 | ret = 1; | |
48 | break; | |
49 | case USDHC2_BASE_ADDR: | |
50 | ret = !gpio_get_value(USDHC2_CD_GPIO); | |
51 | return ret; | |
52 | } | |
53 | ||
54 | return 1; | |
55 | } | |
56 | ||
57 | #define USDHC_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | \ | |
58 | PAD_CTL_FSEL2) | |
59 | #define USDHC_GPIO_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_DSE1) | |
60 | ||
61 | static iomux_v3_cfg_t const usdhc1_pads[] = { | |
62 | IMX8MQ_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
63 | IMX8MQ_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
64 | IMX8MQ_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
65 | IMX8MQ_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
66 | IMX8MQ_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
67 | IMX8MQ_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
68 | IMX8MQ_PAD_SD1_DATA4__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
69 | IMX8MQ_PAD_SD1_DATA5__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
70 | IMX8MQ_PAD_SD1_DATA6__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
71 | IMX8MQ_PAD_SD1_DATA7__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), | |
72 | IMX8MQ_PAD_SD1_RESET_B__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), | |
73 | }; | |
74 | ||
75 | static iomux_v3_cfg_t const usdhc2_pads[] = { | |
76 | IMX8MQ_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ | |
77 | IMX8MQ_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ | |
78 | IMX8MQ_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ | |
79 | IMX8MQ_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ | |
80 | IMX8MQ_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0x16 */ | |
81 | IMX8MQ_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ | |
82 | IMX8MQ_PAD_SD2_CD_B__GPIO2_IO12 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL), | |
83 | IMX8MQ_PAD_SD2_RESET_B__GPIO2_IO19 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL), | |
84 | }; | |
85 | ||
86 | static struct fsl_esdhc_cfg usdhc_cfg[2] = { | |
87 | {USDHC1_BASE_ADDR}, | |
88 | {USDHC2_BASE_ADDR}, | |
89 | }; | |
90 | ||
b75d8dc5 | 91 | int board_mmc_init(struct bd_info *bis) |
ef99f3d9 AM |
92 | { |
93 | int i, ret; | |
94 | /* | |
95 | * According to the board_mmc_init() the following map is done: | |
96 | * (U-Boot device node) (Physical Port) | |
97 | * mmc0 USDHC1 | |
98 | * mmc1 USDHC2 | |
99 | */ | |
6cc04547 | 100 | for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) { |
ef99f3d9 AM |
101 | switch (i) { |
102 | case 0: | |
103 | init_clk_usdhc(0); | |
104 | usdhc_cfg[0].sdhc_clk = mxc_get_clock(USDHC1_CLK_ROOT); | |
105 | usdhc_cfg[0].max_bus_width = 8; | |
106 | imx_iomux_v3_setup_multiple_pads(usdhc1_pads, | |
107 | ARRAY_SIZE(usdhc1_pads)); | |
108 | gpio_request(USDHC1_PWR_GPIO, "usdhc1_reset"); | |
109 | gpio_direction_output(USDHC1_PWR_GPIO, 0); | |
110 | udelay(500); | |
111 | gpio_direction_output(USDHC1_PWR_GPIO, 1); | |
112 | break; | |
113 | case 1: | |
114 | init_clk_usdhc(1); | |
115 | usdhc_cfg[1].sdhc_clk = mxc_get_clock(USDHC2_CLK_ROOT); | |
116 | usdhc_cfg[1].max_bus_width = 4; | |
117 | imx_iomux_v3_setup_multiple_pads(usdhc2_pads, | |
118 | ARRAY_SIZE(usdhc2_pads)); | |
119 | gpio_request(USDHC2_PWR_GPIO, "usdhc2_reset"); | |
120 | gpio_direction_output(USDHC2_PWR_GPIO, 0); | |
121 | udelay(500); | |
122 | gpio_direction_output(USDHC2_PWR_GPIO, 1); | |
123 | break; | |
124 | default: | |
125 | printf("Warning: you configured more USDHC controllers(%d) than supported by the board\n", i + 1); | |
126 | return -EINVAL; | |
127 | } | |
128 | ||
129 | ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); | |
130 | if (ret) | |
131 | return ret; | |
132 | } | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | void spl_board_init(void) | |
138 | { | |
139 | puts("Normal Boot\n"); | |
140 | } | |
141 | ||
142 | #ifdef CONFIG_SPL_LOAD_FIT | |
143 | int board_fit_config_name_match(const char *name) | |
144 | { | |
145 | /* Just empty function now - can't decide what to choose */ | |
146 | debug("%s: %s\n", __func__, name); | |
147 | ||
148 | return 0; | |
149 | } | |
150 | #endif | |
151 | ||
152 | void board_init_f(ulong dummy) | |
153 | { | |
154 | int ret; | |
155 | ||
156 | /* Clear global data */ | |
157 | memset((void *)gd, 0, sizeof(gd_t)); | |
158 | ||
159 | arch_cpu_init(); | |
160 | ||
161 | init_uart_clk(0); | |
162 | ||
163 | board_early_init_f(); | |
164 | ||
165 | timer_init(); | |
166 | ||
167 | preloader_console_init(); | |
168 | ||
169 | /* Clear the BSS. */ | |
170 | memset(__bss_start, 0, __bss_end - __bss_start); | |
171 | ||
172 | ret = spl_init(); | |
173 | if (ret) { | |
174 | debug("spl_init() failed: %d\n", ret); | |
175 | hang(); | |
176 | } | |
177 | ||
178 | enable_tzc380(); | |
179 | ||
180 | /* DDR initialization */ | |
181 | spl_dram_init(); | |
182 | ||
183 | board_init_r(NULL, 0); | |
184 | } |