2 * Copyright (C) 2012 Freescale Semiconductor, Inc.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
22 #include <asm/arch/clock.h>
23 #include <asm/arch/imx-regs.h>
24 #include <asm/arch/iomux.h>
25 #include <asm/arch/mx6x_pins.h>
26 #include <asm/errno.h>
28 #include <asm/imx-common/iomux-v3.h>
30 #include <fsl_esdhc.h>
33 DECLARE_GLOBAL_DATA_PTR;
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)
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)
43 #define ENET_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
44 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
45 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
49 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
54 iomux_v3_cfg_t uart1_pads[] = {
55 MX6Q_PAD_CSI0_DAT10__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
56 MX6Q_PAD_CSI0_DAT11__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
59 iomux_v3_cfg_t enet_pads[] = {
60 MX6Q_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
61 MX6Q_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
62 MX6Q_PAD_RGMII_TXC__ENET_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
63 MX6Q_PAD_RGMII_TD0__ENET_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
64 MX6Q_PAD_RGMII_TD1__ENET_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
65 MX6Q_PAD_RGMII_TD2__ENET_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
66 MX6Q_PAD_RGMII_TD3__ENET_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
67 MX6Q_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
68 MX6Q_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
69 MX6Q_PAD_RGMII_RXC__ENET_RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
70 MX6Q_PAD_RGMII_RD0__ENET_RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
71 MX6Q_PAD_RGMII_RD1__ENET_RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
72 MX6Q_PAD_RGMII_RD2__ENET_RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
73 MX6Q_PAD_RGMII_RD3__ENET_RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
74 MX6Q_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
75 /* AR8031 PHY Reset */
76 MX6Q_PAD_ENET_CRS_DV__GPIO_1_25 | MUX_PAD_CTRL(NO_PAD_CTRL),
79 static void setup_iomux_enet(void)
81 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
83 /* Reset AR8031 PHY */
84 gpio_direction_output(IMX_GPIO_NR(1, 25) , 0);
86 gpio_set_value(IMX_GPIO_NR(1, 25), 1);
89 iomux_v3_cfg_t usdhc3_pads[] = {
90 MX6Q_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
91 MX6Q_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
92 MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
93 MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
94 MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
95 MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
96 MX6Q_PAD_SD3_DAT4__USDHC3_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
97 MX6Q_PAD_SD3_DAT5__USDHC3_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
98 MX6Q_PAD_SD3_DAT6__USDHC3_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
99 MX6Q_PAD_SD3_DAT7__USDHC3_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
100 MX6Q_PAD_NANDF_D0__GPIO_2_0 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
103 static void setup_iomux_uart(void)
105 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
108 #ifdef CONFIG_FSL_ESDHC
109 struct fsl_esdhc_cfg usdhc_cfg[1] = {
113 int board_mmc_getcd(struct mmc *mmc)
115 gpio_direction_input(IMX_GPIO_NR(2, 0));
116 return !gpio_get_value(IMX_GPIO_NR(2, 0));
119 int board_mmc_init(bd_t *bis)
121 imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
123 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
127 int mx6_rgmii_rework(struct phy_device *phydev)
131 /* To enable AR8031 ouput a 125MHz clk from CLK_25M */
132 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
133 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
134 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
136 val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
139 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
141 /* introduce tx clock delay */
142 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
143 val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
145 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
150 int board_phy_config(struct phy_device *phydev)
152 mx6_rgmii_rework(phydev);
154 if (phydev->drv->config)
155 phydev->drv->config(phydev);
160 int board_eth_init(bd_t *bis)
166 ret = cpu_eth_init(bis);
168 printf("FEC MXC: %s:failed\n", __func__);
173 u32 get_board_rev(void)
178 int board_early_init_f(void)
187 /* address of boot parameters */
188 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
195 puts("Board: MX6Q-SabreSD\n");