Merge branch 'master' of git://git.denx.de/u-boot-spi
[platform/kernel/u-boot.git] / board / freescale / mx6slevk / mx6slevk.c
1 /*
2  * Copyright (C) 2013 Freescale Semiconductor, Inc.
3  *
4  * Author: Fabio Estevam <fabio.estevam@freescale.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  */
11
12 #include <asm/arch/clock.h>
13 #include <asm/arch/iomux.h>
14 #include <asm/arch/imx-regs.h>
15 #include <asm/arch/mx6-pins.h>
16 #include <asm/arch/sys_proto.h>
17 #include <asm/gpio.h>
18 #include <asm/imx-common/iomux-v3.h>
19 #include <asm/io.h>
20 #include <asm/sizes.h>
21 #include <common.h>
22 #include <fsl_esdhc.h>
23 #include <mmc.h>
24
25 DECLARE_GLOBAL_DATA_PTR;
26
27 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
28         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
29         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
30
31 #define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP |                    \
32         PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
33         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
34
35 int dram_init(void)
36 {
37         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
38
39         return 0;
40 }
41
42 static iomux_v3_cfg_t const uart1_pads[] = {
43         MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
44         MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
45 };
46
47 static iomux_v3_cfg_t const usdhc2_pads[] = {
48         MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
49         MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
50         MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
51         MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
52         MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
53         MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
54 };
55
56 static void setup_iomux_uart(void)
57 {
58         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
59 }
60
61 static struct fsl_esdhc_cfg usdhc_cfg[1] = {
62         {USDHC2_BASE_ADDR},
63 };
64
65 int board_mmc_getcd(struct mmc *mmc)
66 {
67         return 1;       /* Assume boot SD always present */
68 }
69
70 int board_mmc_init(bd_t *bis)
71 {
72         imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
73
74         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
75         return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
76 }
77
78 int board_early_init_f(void)
79 {
80         setup_iomux_uart();
81         return 0;
82 }
83
84 int board_init(void)
85 {
86         /* address of boot parameters */
87         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
88
89         return 0;
90 }
91
92 u32 get_board_rev(void)
93 {
94         return get_cpu_rev();
95 }
96
97 int checkboard(void)
98 {
99         puts("Board: MX6SLEVK\n");
100
101         return 0;
102 }