2 * Copyright (C) 2013 Freescale Semiconductor, Inc.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
6 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/clock.h>
10 #include <asm/arch/imx-regs.h>
11 #include <asm/arch/iomux.h>
12 #include <asm/arch/mx6-pins.h>
13 #include <asm/errno.h>
15 #include <asm/imx-common/iomux-v3.h>
17 #include <fsl_esdhc.h>
18 #include <asm/arch/crm_regs.h>
20 #include <asm/arch/sys_proto.h>
22 DECLARE_GLOBAL_DATA_PTR
;
24 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
25 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
26 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
28 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
29 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
30 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
32 #define WDT_EN IMX_GPIO_NR(5, 4)
33 #define WDT_TRG IMX_GPIO_NR(3, 19)
37 gd
->ram_size
= (phys_size_t
)CONFIG_DDR_MB
* 1024 * 1024;
42 static iomux_v3_cfg_t
const uart2_pads
[] = {
43 MX6_PAD_EIM_D26__UART2_TX_DATA
| MUX_PAD_CTRL(UART_PAD_CTRL
),
44 MX6_PAD_EIM_D27__UART2_RX_DATA
| MUX_PAD_CTRL(UART_PAD_CTRL
),
47 static iomux_v3_cfg_t
const usdhc3_pads
[] = {
48 MX6_PAD_SD3_CLK__SD3_CLK
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
49 MX6_PAD_SD3_CMD__SD3_CMD
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
50 MX6_PAD_SD3_DAT0__SD3_DATA0
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
51 MX6_PAD_SD3_DAT1__SD3_DATA1
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
52 MX6_PAD_SD3_DAT2__SD3_DATA2
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
53 MX6_PAD_SD3_DAT3__SD3_DATA3
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
56 static iomux_v3_cfg_t
const wdog_pads
[] = {
57 MX6_PAD_EIM_A24__GPIO5_IO04
| MUX_PAD_CTRL(NO_PAD_CTRL
),
58 MX6_PAD_EIM_D19__GPIO3_IO19
,
61 static void setup_iomux_uart(void)
63 imx_iomux_v3_setup_multiple_pads(uart2_pads
, ARRAY_SIZE(uart2_pads
));
66 static void setup_iomux_wdog(void)
68 imx_iomux_v3_setup_multiple_pads(wdog_pads
, ARRAY_SIZE(wdog_pads
));
69 gpio_direction_output(WDT_TRG
, 0);
70 gpio_direction_output(WDT_EN
, 1);
73 static struct fsl_esdhc_cfg usdhc_cfg
= { USDHC3_BASE_ADDR
};
75 int board_mmc_getcd(struct mmc
*mmc
)
77 return 1; /* Always present */
80 int board_mmc_init(bd_t
*bis
)
82 imx_iomux_v3_setup_multiple_pads(usdhc3_pads
, ARRAY_SIZE(usdhc3_pads
));
83 usdhc_cfg
.sdhc_clk
= mxc_get_clock(MXC_ESDHC3_CLK
);
84 usdhc_cfg
.max_bus_width
= 4;
86 return fsl_esdhc_initialize(bis
, &usdhc_cfg
);
89 int board_early_init_f(void)
99 /* address of boot parameters */
100 gd
->bd
->bi_boot_params
= PHYS_SDRAM
+ 0x100;
107 puts("Board: Udoo\n");