mirror of
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251 lines
7.4 KiB
C
251 lines
7.4 KiB
C
/*
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* Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/mx6x_pins.h>
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#include <asm/arch/clock.h>
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#include <asm/errno.h>
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#include <asm/gpio.h>
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#include <asm/imx-common/iomux-v3.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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#include <miiphy.h>
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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
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PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define ENET_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
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return 0;
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}
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iomux_v3_cfg_t const uart4_pads[] = {
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MX6Q_PAD_KEY_COL0__UART4_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6Q_PAD_KEY_ROW0__UART4_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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iomux_v3_cfg_t const usdhc3_pads[] = {
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MX6Q_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT4__USDHC3_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT5__USDHC3_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT6__USDHC3_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT7__USDHC3_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_NANDF_CS0__GPIO_6_11 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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iomux_v3_cfg_t const usdhc4_pads[] = {
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MX6Q_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT4__USDHC4_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT5__USDHC4_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT6__USDHC4_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT7__USDHC4_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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};
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iomux_v3_cfg_t const enet_pads[] = {
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MX6Q_PAD_KEY_COL1__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_KEY_COL2__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_TXC__ENET_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_TD0__ENET_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_TD1__ENET_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_TD2__ENET_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_TD3__ENET_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_RXC__ENET_RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_RD0__ENET_RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_RD1__ENET_RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_RD2__ENET_RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_RD3__ENET_RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6Q_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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};
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
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}
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static void setup_iomux_enet(void)
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{
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imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
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}
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#ifdef CONFIG_FSL_ESDHC
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struct fsl_esdhc_cfg usdhc_cfg[2] = {
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{USDHC3_BASE_ADDR},
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{USDHC4_BASE_ADDR},
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};
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int board_mmc_getcd(struct mmc *mmc)
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{
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struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
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int ret;
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if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
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gpio_direction_input(IMX_GPIO_NR(6, 11));
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ret = !gpio_get_value(IMX_GPIO_NR(6, 11));
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} else /* Don't have the CD GPIO pin on board */
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ret = 1;
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return ret;
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}
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int board_mmc_init(bd_t *bis)
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{
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s32 status = 0;
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u32 index = 0;
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
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usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
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for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
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switch (index) {
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case 0:
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imx_iomux_v3_setup_multiple_pads(
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usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
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break;
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case 1:
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imx_iomux_v3_setup_multiple_pads(
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usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
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break;
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default:
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printf("Warning: you configured more USDHC controllers"
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"(%d) then supported by the board (%d)\n",
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index + 1, CONFIG_SYS_FSL_USDHC_NUM);
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return status;
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}
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status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
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}
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return status;
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}
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#endif
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#define MII_MMD_ACCESS_CTRL_REG 0xd
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#define MII_MMD_ACCESS_ADDR_DATA_REG 0xe
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#define MII_DBG_PORT_REG 0x1d
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#define MII_DBG_PORT2_REG 0x1e
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int fecmxc_mii_postcall(int phy)
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{
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unsigned short val;
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/*
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* Due to the i.MX6Q Armadillo2 board HW design,there is
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* no 125Mhz clock input from SOC. In order to use RGMII,
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* We need enable AR8031 ouput a 125MHz clk from CLK_25M
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*/
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miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x7);
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miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, 0x8016);
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miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x4007);
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miiphy_read("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, &val);
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val &= 0xffe3;
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val |= 0x18;
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miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, val);
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/* For the RGMII phy, we need enable tx clock delay */
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miiphy_write("FEC", phy, MII_DBG_PORT_REG, 0x5);
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miiphy_read("FEC", phy, MII_DBG_PORT2_REG, &val);
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val |= 0x0100;
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miiphy_write("FEC", phy, MII_DBG_PORT2_REG, val);
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miiphy_write("FEC", phy, MII_BMCR, 0xa100);
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return 0;
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}
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int board_eth_init(bd_t *bis)
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{
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struct eth_device *dev;
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int ret;
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ret = cpu_eth_init(bis);
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if (ret) {
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printf("FEC MXC: %s:failed\n", __func__);
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return ret;
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}
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dev = eth_get_dev_by_name("FEC");
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if (!dev) {
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printf("FEC MXC: Unable to get FEC device entry\n");
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return -EINVAL;
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}
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ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
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if (ret) {
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printf("FEC MXC: Unable to register FEC mii postcall\n");
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return ret;
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}
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return 0;
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}
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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setup_iomux_enet();
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return 0;
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}
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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return 0;
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}
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int checkboard(void)
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{
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puts("Board: MX6Q-Armadillo2\n");
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return 0;
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}
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