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1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * Copyright 2017-2018 NXP | |
4 | */ | |
5 | #include <common.h> | |
6 | #include <dm.h> | |
4d72caa5 | 7 | #include <image.h> |
eef72440 OG |
8 | #include <spl.h> |
9 | #include <fsl_esdhc.h> | |
10 | ||
11 | #include <asm/io.h> | |
12 | #include <asm/gpio.h> | |
13 | #include <asm/arch/clock.h> | |
14 | #include <asm/arch/sci/sci.h> | |
15 | #include <asm/arch/imx8-pins.h> | |
16 | #include <asm/arch/iomux.h> | |
17 | ||
18 | DECLARE_GLOBAL_DATA_PTR; | |
19 | ||
20 | #define ESDHC_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ | |
21 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
22 | (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ | |
23 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
24 | ||
25 | #define ESDHC_CLK_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ | |
26 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
27 | (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ | |
28 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
29 | ||
30 | #define ENET_INPUT_PAD_CTRL ((SC_PAD_CONFIG_OD_IN << PADRING_CONFIG_SHIFT) | \ | |
31 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
32 | (SC_PAD_28FDSOI_DSE_18V_10MA << PADRING_DSE_SHIFT) | \ | |
33 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
34 | ||
35 | #define ENET_NORMAL_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ | |
36 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
37 | (SC_PAD_28FDSOI_DSE_18V_10MA << PADRING_DSE_SHIFT) | \ | |
38 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
39 | ||
40 | #define FSPI_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ | |
41 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
42 | (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ | |
43 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
44 | ||
45 | #define GPIO_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ | |
46 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
47 | (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ | |
48 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
49 | ||
50 | #define I2C_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ | |
51 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
52 | (SC_PAD_28FDSOI_DSE_DV_LOW << PADRING_DSE_SHIFT) | \ | |
53 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
54 | ||
55 | #define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ | |
56 | (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ | |
57 | (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ | |
58 | (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) | |
59 | #ifdef CONFIG_FSL_ESDHC | |
60 | ||
61 | #define USDHC1_CD_GPIO IMX_GPIO_NR(5, 22) | |
62 | #define USDHC2_CD_GPIO IMX_GPIO_NR(4, 12) | |
63 | ||
64 | static struct fsl_esdhc_cfg usdhc_cfg[CONFIG_SYS_FSL_USDHC_NUM] = { | |
65 | {USDHC1_BASE_ADDR, 0, 8}, | |
66 | {USDHC2_BASE_ADDR, 0, 4}, | |
67 | {USDHC3_BASE_ADDR, 0, 4}, | |
68 | }; | |
69 | ||
70 | static iomux_cfg_t emmc0[] = { | |
71 | SC_P_EMMC0_CLK | MUX_PAD_CTRL(ESDHC_CLK_PAD_CTRL), | |
72 | SC_P_EMMC0_CMD | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
73 | SC_P_EMMC0_DATA0 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
74 | SC_P_EMMC0_DATA1 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
75 | SC_P_EMMC0_DATA2 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
76 | SC_P_EMMC0_DATA3 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
77 | SC_P_EMMC0_DATA4 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
78 | SC_P_EMMC0_DATA5 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
79 | SC_P_EMMC0_DATA6 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
80 | SC_P_EMMC0_DATA7 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
81 | SC_P_EMMC0_RESET_B | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
82 | SC_P_EMMC0_STROBE | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
83 | }; | |
84 | ||
85 | static iomux_cfg_t usdhc2_sd[] = { | |
86 | SC_P_USDHC2_CLK | MUX_PAD_CTRL(ESDHC_CLK_PAD_CTRL), | |
87 | SC_P_USDHC2_CMD | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
88 | SC_P_USDHC2_DATA0 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
89 | SC_P_USDHC2_DATA1 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
90 | SC_P_USDHC2_DATA2 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
91 | SC_P_USDHC2_DATA3 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
92 | SC_P_USDHC2_RESET_B | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
93 | SC_P_USDHC2_WP | MUX_MODE_ALT(3) | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
94 | SC_P_USDHC2_CD_B | MUX_MODE_ALT(3) | MUX_PAD_CTRL(ESDHC_PAD_CTRL), | |
95 | }; | |
96 | ||
97 | int board_mmc_init(bd_t *bis) | |
98 | { | |
99 | int i, ret; | |
100 | ||
101 | /* | |
102 | * According to the board_mmc_init() the following map is done: | |
103 | * (U-Boot device node) (Physical Port) | |
104 | * mmc0 USDHC1 | |
105 | * mmc1 USDHC2 | |
106 | * mmc2 USDHC3 | |
107 | */ | |
108 | for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { | |
109 | switch (i) { | |
110 | case 0: | |
111 | ret = sc_pm_set_resource_power_mode(-1, SC_R_SDHC_0, SC_PM_PW_MODE_ON); | |
112 | if (ret != SC_ERR_NONE) | |
113 | return ret; | |
114 | ||
115 | imx8_iomux_setup_multiple_pads(emmc0, ARRAY_SIZE(emmc0)); | |
116 | init_clk_usdhc(0); | |
117 | usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); | |
118 | break; | |
119 | case 1: | |
120 | ret = sc_pm_set_resource_power_mode(-1, SC_R_SDHC_2, SC_PM_PW_MODE_ON); | |
121 | if (ret != SC_ERR_NONE) | |
122 | return ret; | |
123 | ret = sc_pm_set_resource_power_mode(-1, SC_R_GPIO_4, SC_PM_PW_MODE_ON); | |
124 | if (ret != SC_ERR_NONE) | |
125 | return ret; | |
126 | ||
127 | imx8_iomux_setup_multiple_pads(usdhc2_sd, ARRAY_SIZE(usdhc2_sd)); | |
128 | init_clk_usdhc(2); | |
129 | usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); | |
130 | gpio_request(USDHC2_CD_GPIO, "sd2_cd"); | |
131 | gpio_direction_input(USDHC2_CD_GPIO); | |
132 | break; | |
133 | default: | |
134 | printf("Warning: you configured more USDHC controllers" | |
135 | "(%d) than supported by the board\n", i + 1); | |
136 | return 0; | |
137 | } | |
138 | ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); | |
139 | if (ret) { | |
140 | printf("Warning: failed to initialize mmc dev %d\n", i); | |
141 | return ret; | |
142 | } | |
143 | } | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
148 | int board_mmc_getcd(struct mmc *mmc) | |
149 | { | |
150 | struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; | |
151 | int ret = 0; | |
152 | ||
153 | switch (cfg->esdhc_base) { | |
154 | case USDHC1_BASE_ADDR: | |
155 | ret = 1; | |
156 | break; | |
157 | case USDHC2_BASE_ADDR: | |
158 | ret = !gpio_get_value(USDHC1_CD_GPIO); | |
159 | break; | |
160 | case USDHC3_BASE_ADDR: | |
161 | ret = !gpio_get_value(USDHC2_CD_GPIO); | |
162 | break; | |
163 | } | |
164 | ||
165 | return ret; | |
166 | } | |
167 | ||
168 | #endif /* CONFIG_FSL_ESDHC */ | |
169 | ||
170 | void spl_board_init(void) | |
171 | { | |
172 | #if defined(CONFIG_SPL_SPI_SUPPORT) | |
173 | if (sc_rm_is_resource_owned(-1, SC_R_FSPI_0)) { | |
174 | if (sc_pm_set_resource_power_mode(-1, SC_R_FSPI_0, SC_PM_PW_MODE_ON)) { | |
175 | puts("Warning: failed to initialize FSPI0\n"); | |
176 | } | |
177 | } | |
178 | #endif | |
179 | ||
180 | puts("Normal Boot\n"); | |
181 | } | |
182 | ||
183 | void spl_board_prepare_for_boot(void) | |
184 | { | |
185 | #if defined(CONFIG_SPL_SPI_SUPPORT) | |
186 | if (sc_rm_is_resource_owned(-1, SC_R_FSPI_0)) { | |
187 | if (sc_pm_set_resource_power_mode(-1, SC_R_FSPI_0, SC_PM_PW_MODE_OFF)) { | |
188 | puts("Warning: failed to turn off FSPI0\n"); | |
189 | } | |
190 | } | |
191 | #endif | |
192 | } | |
193 | ||
194 | #ifdef CONFIG_SPL_LOAD_FIT | |
195 | int board_fit_config_name_match(const char *name) | |
196 | { | |
197 | /* Just empty function now - can't decide what to choose */ | |
198 | debug("%s: %s\n", __func__, name); | |
199 | ||
200 | return 0; | |
201 | } | |
202 | #endif | |
203 | ||
204 | void board_init_f(ulong dummy) | |
205 | { | |
206 | /* Clear global data */ | |
207 | memset((void *)gd, 0, sizeof(gd_t)); | |
208 | ||
209 | arch_cpu_init(); | |
210 | ||
211 | board_early_init_f(); | |
212 | ||
213 | timer_init(); | |
214 | ||
215 | preloader_console_init(); | |
216 | ||
217 | /* Clear the BSS. */ | |
218 | memset(__bss_start, 0, __bss_end - __bss_start); | |
219 | ||
220 | board_init_r(NULL, 0); | |
221 | } |