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/iomux.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/mx6-pins.h>
13 #include <asm/arch/sys_proto.h>
15 #include <asm/imx-common/iomux-v3.h>
17 #include <asm/sizes.h>
19 #include <fsl_esdhc.h>
23 DECLARE_GLOBAL_DATA_PTR;
25 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
26 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
27 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
29 #define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
30 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
31 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
33 #define ENET_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
34 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
35 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
37 #define ETH_PHY_RESET IMX_GPIO_NR(4, 21)
41 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
46 static iomux_v3_cfg_t const uart1_pads[] = {
47 MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
48 MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
51 static iomux_v3_cfg_t const usdhc2_pads[] = {
52 MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
53 MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
54 MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
55 MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
56 MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
57 MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
60 static iomux_v3_cfg_t const fec_pads[] = {
61 MX6_PAD_FEC_MDC__FEC_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
62 MX6_PAD_FEC_MDIO__FEC_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
63 MX6_PAD_FEC_CRS_DV__FEC_RX_DV | MUX_PAD_CTRL(ENET_PAD_CTRL),
64 MX6_PAD_FEC_RXD0__FEC_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
65 MX6_PAD_FEC_RXD1__FEC_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
66 MX6_PAD_FEC_TX_EN__FEC_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
67 MX6_PAD_FEC_TXD0__FEC_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
68 MX6_PAD_FEC_TXD1__FEC_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
69 MX6_PAD_FEC_REF_CLK__FEC_REF_OUT | MUX_PAD_CTRL(ENET_PAD_CTRL),
70 MX6_PAD_FEC_RX_ER__GPIO_4_19 | MUX_PAD_CTRL(NO_PAD_CTRL),
71 MX6_PAD_FEC_TX_CLK__GPIO_4_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
74 static void setup_iomux_uart(void)
76 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
79 static void setup_iomux_fec(void)
81 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
83 /* Reset LAN8720 PHY */
84 gpio_direction_output(ETH_PHY_RESET , 0);
86 gpio_set_value(ETH_PHY_RESET, 1);
89 static struct fsl_esdhc_cfg usdhc_cfg[1] = {
93 int board_mmc_getcd(struct mmc *mmc)
95 return 1; /* Assume boot SD always present */
98 int board_mmc_init(bd_t *bis)
100 imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
102 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
103 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
106 #ifdef CONFIG_FEC_MXC
107 int board_eth_init(bd_t *bis)
111 return cpu_eth_init(bis);
114 static int setup_fec(void)
116 struct iomuxc_base_regs *iomuxc_regs =
117 (struct iomuxc_base_regs *)IOMUXC_BASE_ADDR;
120 /* clear gpr1[14], gpr1[18:17] to select anatop clock */
121 clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
123 ret = enable_fec_anatop_clock(ENET_50MHz);
132 int board_early_init_f(void)
140 /* address of boot parameters */
141 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
143 #ifdef CONFIG_FEC_MXC
149 u32 get_board_rev(void)
151 return get_cpu_rev();
156 puts("Board: MX6SLEVK\n");