]> git.kernelconcepts.de Git - karo-tx-uboot.git/blob - board/freescale/mx6qsabrelite/mx6qsabrelite.c
i.mx6q: mx6qsabrelite: Setup uart1 pinmux
[karo-tx-uboot.git] / board / freescale / mx6qsabrelite / mx6qsabrelite.c
1 /*
2  * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22
23 #include <common.h>
24 #include <asm/io.h>
25 #include <asm/arch/imx-regs.h>
26 #include <asm/arch/mx6x_pins.h>
27 #include <asm/arch/iomux-v3.h>
28 #include <asm/errno.h>
29 #include <asm/gpio.h>
30 #include <mmc.h>
31 #include <fsl_esdhc.h>
32
33 DECLARE_GLOBAL_DATA_PTR;
34
35 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |            \
36        PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
37        PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
38
39 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |            \
40        PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |               \
41        PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
42
43 int dram_init(void)
44 {
45        gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
46
47        return 0;
48 }
49
50 iomux_v3_cfg_t uart1_pads[] = {
51         MX6Q_PAD_SD3_DAT6__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
52         MX6Q_PAD_SD3_DAT7__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
53 };
54
55 iomux_v3_cfg_t uart2_pads[] = {
56        MX6Q_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
57        MX6Q_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
58 };
59
60 iomux_v3_cfg_t usdhc3_pads[] = {
61        MX6Q_PAD_SD3_CLK__USDHC3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
62        MX6Q_PAD_SD3_CMD__USDHC3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
63        MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
64        MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
65        MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
66        MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
67        MX6Q_PAD_SD3_DAT5__GPIO_7_0    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
68 };
69
70 iomux_v3_cfg_t usdhc4_pads[] = {
71        MX6Q_PAD_SD4_CLK__USDHC4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
72        MX6Q_PAD_SD4_CMD__USDHC4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
73        MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
74        MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
75        MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
76        MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
77        MX6Q_PAD_NANDF_D6__GPIO_2_6    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
78 };
79
80 static void setup_iomux_uart(void)
81 {
82         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
83        imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
84 }
85
86 #ifdef CONFIG_FSL_ESDHC
87 struct fsl_esdhc_cfg usdhc_cfg[2] = {
88        {USDHC3_BASE_ADDR, 1},
89        {USDHC4_BASE_ADDR, 1},
90 };
91
92 int board_mmc_getcd(struct mmc *mmc)
93 {
94        struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
95        int ret;
96
97        if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
98                gpio_direction_input(192); /*GPIO7_0*/
99                ret = !gpio_get_value(192);
100        } else {
101                gpio_direction_input(38); /*GPIO2_6*/
102                ret = !gpio_get_value(38);
103        }
104
105        return ret;
106 }
107
108 int board_mmc_init(bd_t *bis)
109 {
110        s32 status = 0;
111        u32 index = 0;
112
113        for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
114                switch (index) {
115                case 0:
116                        imx_iomux_v3_setup_multiple_pads(
117                                usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
118                        break;
119                case 1:
120                        imx_iomux_v3_setup_multiple_pads(
121                                usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
122                        break;
123                default:
124                        printf("Warning: you configured more USDHC controllers"
125                                "(%d) then supported by the board (%d)\n",
126                                index + 1, CONFIG_SYS_FSL_USDHC_NUM);
127                        return status;
128                }
129
130                status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
131        }
132
133        return status;
134 }
135 #endif
136
137 int board_early_init_f(void)
138 {
139        setup_iomux_uart();
140
141        return 0;
142 }
143
144 int board_init(void)
145 {
146        /* address of boot parameters */
147        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
148
149        return 0;
150 }
151
152 int checkboard(void)
153 {
154        puts("Board: MX6Q-Sabre Lite\n");
155
156        return 0;
157 }