1 /*
2 * Copyright (C) 2014, Barco (www.barco.com)
3 * Copyright (C) 2014 Stefan Roese <sr@denx.de>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8 #include <common.h>
9 #include <mmc.h>
10 #include <fsl_esdhc.h>
11 #include <miiphy.h>
12 #include <netdev.h>
13 #include <asm/io.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/imx-regs.h>
16 #include <asm/arch/iomux.h>
17 #include <asm/arch/mx6-pins.h>
18 #include <asm/arch/crm_regs.h>
19 #include <asm/arch/sys_proto.h>
20 #include <asm/gpio.h>
21 #include <asm/mach-imx/iomux-v3.h>
22 #include <asm/mach-imx/boot_mode.h>
23
24 #include "platinum.h"
25
26 DECLARE_GLOBAL_DATA_PTR;
27
28 iomux_v3_cfg_t const usdhc3_pads[] = {
29 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
30 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
31 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
32 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
33 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
34 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
35 MX6_PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
36 };
37
38 iomux_v3_cfg_t nfc_pads[] = {
39 MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NO_PAD_CTRL),
40 MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NO_PAD_CTRL),
41 MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NO_PAD_CTRL),
42 MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NO_PAD_CTRL),
43 MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NO_PAD_CTRL),
44 MX6_PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NO_PAD_CTRL),
45 MX6_PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NO_PAD_CTRL),
46 MX6_PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NO_PAD_CTRL),
47 MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NO_PAD_CTRL),
48 MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NO_PAD_CTRL),
49 MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NO_PAD_CTRL),
50 MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NO_PAD_CTRL),
51 MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NO_PAD_CTRL),
52 MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NO_PAD_CTRL),
53 MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NO_PAD_CTRL),
54 MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NO_PAD_CTRL),
55 MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NO_PAD_CTRL),
56 MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NO_PAD_CTRL),
57 MX6_PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NO_PAD_CTRL),
58 };
59
60 struct fsl_esdhc_cfg usdhc_cfg[] = {
61 { USDHC3_BASE_ADDR },
62 };
63
setup_gpmi_nand(void)64 void setup_gpmi_nand(void)
65 {
66 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
67
68 /* config gpmi nand iomux */
69 imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads));
70
71 /* config gpmi and bch clock to 100 MHz */
72 clrsetbits_le32(&mxc_ccm->cs2cdr,
73 MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
74 MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
75 MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
76 MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
77 MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
78 MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
79
80 /* enable gpmi and bch clock gating */
81 setbits_le32(&mxc_ccm->CCGR4,
82 MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
83 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
84 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
85 MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
86 MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
87
88 /* enable apbh clock gating */
89 setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
90 }
91
dram_init(void)92 int dram_init(void)
93 {
94 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
95
96 return 0;
97 }
98
board_ehci_hcd_init(int port)99 int board_ehci_hcd_init(int port)
100 {
101 return 0;
102 }
103
board_mmc_getcd(struct mmc * mmc)104 int board_mmc_getcd(struct mmc *mmc)
105 {
106 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
107
108 if (cfg->esdhc_base == usdhc_cfg[0].esdhc_base) {
109 unsigned sd3_cd = IMX_GPIO_NR(7, 0);
110 gpio_direction_input(sd3_cd);
111 return !gpio_get_value(sd3_cd);
112 }
113
114 return 0;
115 }
116
board_mmc_init(bd_t * bis)117 int board_mmc_init(bd_t *bis)
118 {
119 imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
120 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
121
122 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
123 }
124
board_init_gpio(void)125 void board_init_gpio(void)
126 {
127 platinum_init_gpio();
128 }
129
board_init_gpmi_nand(void)130 void board_init_gpmi_nand(void)
131 {
132 setup_gpmi_nand();
133 }
134
board_init_i2c(void)135 void board_init_i2c(void)
136 {
137 platinum_setup_i2c();
138 }
139
board_init_spi(void)140 void board_init_spi(void)
141 {
142 platinum_setup_spi();
143 }
144
board_init_uart(void)145 void board_init_uart(void)
146 {
147 platinum_setup_uart();
148 }
149
board_init_usb(void)150 void board_init_usb(void)
151 {
152 platinum_init_usb();
153 }
154
board_init_finished(void)155 void board_init_finished(void)
156 {
157 platinum_init_finished();
158 }
159
board_phy_config(struct phy_device * phydev)160 int board_phy_config(struct phy_device *phydev)
161 {
162 return platinum_phy_config(phydev);
163 }
164
board_eth_init(bd_t * bis)165 int board_eth_init(bd_t *bis)
166 {
167 return cpu_eth_init(bis);
168 }
169
board_early_init_f(void)170 int board_early_init_f(void)
171 {
172 board_init_uart();
173
174 return 0;
175 }
176
board_init(void)177 int board_init(void)
178 {
179 /* address of boot parameters */
180 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
181
182 board_init_spi();
183
184 board_init_i2c();
185
186 board_init_gpmi_nand();
187
188 board_init_gpio();
189
190 board_init_usb();
191
192 board_init_finished();
193
194 return 0;
195 }
196
checkboard(void)197 int checkboard(void)
198 {
199 puts("Board: " CONFIG_PLATINUM_BOARD "\n");
200 return 0;
201 }
202
203 static const struct boot_mode board_boot_modes[] = {
204 /* NAND */
205 { "nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00) },
206 /* 4 bit bus width */
207 { "mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00) },
208 { "mmc1", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00) },
209 { NULL, 0 },
210 };
211
misc_init_r(void)212 int misc_init_r(void)
213 {
214 add_board_boot_modes(board_boot_modes);
215
216 return 0;
217 }
218