1 /*
2  * (C) Copyright 2011 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <asm/io.h>
9 #include <asm/arch/imx-regs.h>
10 #include <asm/arch/sys_proto.h>
11 #include <asm/arch/crm_regs.h>
12 #include <asm/arch/clock.h>
13 #include <asm/arch/iomux-mx53.h>
14 #include <linux/errno.h>
15 #include <netdev.h>
16 #include <mmc.h>
17 #include <fsl_esdhc.h>
18 #include <asm/gpio.h>
19 
20 DECLARE_GLOBAL_DATA_PTR;
21 
22 int dram_init(void)
23 {
24 	u32 size1, size2;
25 
26 	size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
27 	size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
28 
29 	gd->ram_size = size1 + size2;
30 
31 	return 0;
32 }
33 int dram_init_banksize(void)
34 {
35 	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
36 	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
37 
38 	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
39 	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
40 
41 	return 0;
42 }
43 
44 #define UART_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
45 			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
46 
47 static void setup_iomux_uart(void)
48 {
49 	static const iomux_v3_cfg_t uart_pads[] = {
50 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT11__UART1_RXD_MUX, UART_PAD_CTRL),
51 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, UART_PAD_CTRL),
52 	};
53 
54 	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
55 }
56 
57 static void setup_iomux_fec(void)
58 {
59 	static const iomux_v3_cfg_t fec_pads[] = {
60 		NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
61 			PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
62 		NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
63 		NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
64 				PAD_CTL_HYS | PAD_CTL_PKE),
65 		NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
66 				PAD_CTL_HYS | PAD_CTL_PKE),
67 		NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
68 		NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
69 		NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
70 		NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
71 				PAD_CTL_HYS | PAD_CTL_PKE),
72 		NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
73 				PAD_CTL_HYS | PAD_CTL_PKE),
74 		NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
75 				PAD_CTL_HYS | PAD_CTL_PKE),
76 	};
77 
78 	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
79 }
80 
81 #ifdef CONFIG_FSL_ESDHC
82 struct fsl_esdhc_cfg esdhc_cfg[1] = {
83 	{MMC_SDHC1_BASE_ADDR},
84 };
85 
86 int board_mmc_getcd(struct mmc *mmc)
87 {
88 	imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA13__GPIO3_13);
89 	gpio_direction_input(IMX_GPIO_NR(3, 13));
90 	return !gpio_get_value(IMX_GPIO_NR(3, 13));
91 }
92 
93 #define SD_CMD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
94 				 PAD_CTL_PUS_100K_UP)
95 #define SD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
96 				 PAD_CTL_DSE_HIGH)
97 
98 int board_mmc_init(bd_t *bis)
99 {
100 	static const iomux_v3_cfg_t sd1_pads[] = {
101 		NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
102 		NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
103 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
104 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
105 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
106 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
107 		MX53_PAD_EIM_DA13__GPIO3_13,
108 	};
109 
110 	u32 index;
111 	int ret;
112 
113 	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
114 
115 	for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
116 		switch (index) {
117 		case 0:
118 			imx_iomux_v3_setup_multiple_pads(sd1_pads,
119 							 ARRAY_SIZE(sd1_pads));
120 			break;
121 
122 		default:
123 			printf("Warning: you configured more ESDHC controller"
124 				"(%d) as supported by the board(1)\n",
125 				CONFIG_SYS_FSL_ESDHC_NUM);
126 			return -EINVAL;
127 		}
128 		ret = fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
129 		if (ret)
130 			return ret;
131 	}
132 
133 	return 0;
134 }
135 #endif
136 
137 int board_early_init_f(void)
138 {
139 	setup_iomux_uart();
140 	setup_iomux_fec();
141 
142 	return 0;
143 }
144 
145 int board_init(void)
146 {
147 	/* address of boot parameters */
148 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
149 
150 	return 0;
151 }
152 
153 int checkboard(void)
154 {
155 	puts("Board: MX53SMD\n");
156 
157 	return 0;
158 }
159