mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-25 12:29:44 +09:00
d0fbca2a3a
Add full support for USDHC2, USDHC3, USDHC4 on mx6sx sabresd board. The default boot socket is USDHC4, so the MMC environment device and mmcdev variable are set to this device. Signed-off-by: Ye.Li <B37916@freescale.com>
383 lines
10 KiB
C
383 lines
10 KiB
C
/*
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* Copyright (C) 2014 Freescale Semiconductor, Inc.
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*
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* Author: Fabio Estevam <fabio.estevam@freescale.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/arch/clock.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/mx6-pins.h>
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#include <asm/arch/sys_proto.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 <asm/io.h>
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#include <asm/imx-common/mxc_i2c.h>
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#include <linux/sizes.h>
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#include <common.h>
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#include <fsl_esdhc.h>
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#include <mmc.h>
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#include <i2c.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <power/pmic.h>
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#include <power/pfuze100_pmic.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_22K_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 I2C_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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PAD_CTL_ODE)
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#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
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PAD_CTL_SPEED_HIGH | \
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PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST)
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#define ENET_CLK_PAD_CTRL (PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_120ohm | PAD_CTL_SRE_FAST)
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#define ENET_RX_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_SPEED_HIGH | PAD_CTL_SRE_FAST)
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#define I2C_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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PAD_CTL_ODE)
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int dram_init(void)
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{
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gd->ram_size = PHYS_SDRAM_SIZE;
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return 0;
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}
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static iomux_v3_cfg_t const uart1_pads[] = {
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MX6_PAD_GPIO1_IO04__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static iomux_v3_cfg_t const usdhc2_pads[] = {
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MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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};
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static iomux_v3_cfg_t const usdhc3_pads[] = {
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MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA4__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA5__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA6__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DATA7__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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/* CD pin */
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MX6_PAD_KEY_COL0__GPIO2_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* RST_B, used for power reset cycle */
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MX6_PAD_KEY_COL1__GPIO2_IO_11 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const usdhc4_pads[] = {
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MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DATA7__GPIO6_IO_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const fec1_pads[] = {
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MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX6_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX6_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX6_PAD_RGMII1_RD2__ENET1_RX_DATA_2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX6_PAD_RGMII1_RD3__ENET1_RX_DATA_3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX6_PAD_RGMII1_RXC__ENET1_RX_CLK | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX6_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII1_TD2__ENET1_TX_DATA_2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII1_TD3__ENET1_TX_DATA_3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII1_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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};
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static iomux_v3_cfg_t const peri_3v3_pads[] = {
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MX6_PAD_QSPI1A_DATA0__GPIO4_IO_16 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const phy_control_pads[] = {
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/* 25MHz Ethernet PHY Clock */
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MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
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/* ENET PHY Power */
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MX6_PAD_ENET2_COL__GPIO2_IO_6 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* AR8031 PHY Reset */
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MX6_PAD_ENET2_CRS__GPIO2_IO_7 | MUX_PAD_CTRL(NO_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(uart1_pads, ARRAY_SIZE(uart1_pads));
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}
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static int setup_fec(void)
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{
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struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
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struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
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int reg;
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/* Use 125MHz anatop loopback REF_CLK1 for ENET1 */
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clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0);
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imx_iomux_v3_setup_multiple_pads(phy_control_pads,
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ARRAY_SIZE(phy_control_pads));
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/* Enable the ENET power, active low */
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gpio_direction_output(IMX_GPIO_NR(2, 6) , 0);
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/* Reset AR8031 PHY */
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gpio_direction_output(IMX_GPIO_NR(2, 7) , 0);
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udelay(500);
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gpio_set_value(IMX_GPIO_NR(2, 7), 1);
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reg = readl(&anatop->pll_enet);
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reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE;
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writel(reg, &anatop->pll_enet);
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return enable_fec_anatop_clock(ENET_125MHz);
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}
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int board_eth_init(bd_t *bis)
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{
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imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
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setup_fec();
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return cpu_eth_init(bis);
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}
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#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
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/* I2C1 for PMIC */
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static struct i2c_pads_info i2c_pad_info1 = {
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.scl = {
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.i2c_mode = MX6_PAD_GPIO1_IO00__I2C1_SCL | PC,
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.gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
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.gp = IMX_GPIO_NR(1, 0),
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},
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.sda = {
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.i2c_mode = MX6_PAD_GPIO1_IO01__I2C1_SDA | PC,
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.gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
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.gp = IMX_GPIO_NR(1, 1),
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},
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};
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static int pfuze_init(void)
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{
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struct pmic *p;
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int ret;
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unsigned int reg;
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ret = power_pfuze100_init(I2C_PMIC);
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if (ret)
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return ret;
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p = pmic_get("PFUZE100");
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ret = pmic_probe(p);
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if (ret)
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return ret;
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pmic_reg_read(p, PFUZE100_DEVICEID, ®);
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printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
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/* Set SW1AB standby voltage to 0.975V */
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pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
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reg &= ~0x3f;
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reg |= 0x1b;
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pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
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/* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
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pmic_reg_read(p, PUZE_100_SW1ABCONF, ®);
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reg &= ~0xc0;
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reg |= 0x40;
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pmic_reg_write(p, PUZE_100_SW1ABCONF, reg);
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/* Set SW1C standby voltage to 0.975V */
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pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
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reg &= ~0x3f;
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reg |= 0x1b;
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pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
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/* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
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pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
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reg &= ~0xc0;
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reg |= 0x40;
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pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
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/* Enable power of VGEN5 3V3, needed for SD3 */
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pmic_reg_read(p, PFUZE100_VGEN5VOL, ®);
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reg &= ~0x1F;
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reg |= 0x1F;
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pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
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return 0;
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}
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int board_phy_config(struct phy_device *phydev)
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{
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/*
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* Enable 1.8V(SEL_1P5_1P8_POS_REG) on
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* Phy control debug reg 0
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*/
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
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/* rgmii tx clock delay enable */
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
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phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
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if (phydev->drv->config)
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phydev->drv->config(phydev);
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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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/* Enable PERI_3V3, which is used by SD2, ENET, LVDS, BT */
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imx_iomux_v3_setup_multiple_pads(peri_3v3_pads,
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ARRAY_SIZE(peri_3v3_pads));
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/* Active high for ncp692 */
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gpio_direction_output(IMX_GPIO_NR(4, 16) , 1);
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return 0;
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}
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static struct fsl_esdhc_cfg usdhc_cfg[3] = {
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{USDHC2_BASE_ADDR, 0, 4},
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{USDHC3_BASE_ADDR},
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{USDHC4_BASE_ADDR},
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};
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#define USDHC3_CD_GPIO IMX_GPIO_NR(2, 10)
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#define USDHC3_PWR_GPIO IMX_GPIO_NR(2, 11)
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#define USDHC4_CD_GPIO IMX_GPIO_NR(6, 21)
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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 = 0;
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switch (cfg->esdhc_base) {
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case USDHC2_BASE_ADDR:
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ret = 1; /* Assume uSDHC2 is always present */
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break;
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case USDHC3_BASE_ADDR:
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ret = !gpio_get_value(USDHC3_CD_GPIO);
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break;
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case USDHC4_BASE_ADDR:
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ret = !gpio_get_value(USDHC4_CD_GPIO);
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break;
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}
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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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int i, ret;
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/*
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* According to the board_mmc_init() the following map is done:
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* (U-boot device node) (Physical Port)
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* mmc0 USDHC2
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* mmc1 USDHC3
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* mmc2 USDHC4
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*/
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for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
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switch (i) {
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case 0:
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imx_iomux_v3_setup_multiple_pads(
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usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
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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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usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
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gpio_direction_input(USDHC3_CD_GPIO);
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gpio_direction_output(USDHC3_PWR_GPIO, 1);
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usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
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break;
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case 2:
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imx_iomux_v3_setup_multiple_pads(
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usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
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gpio_direction_input(USDHC4_CD_GPIO);
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usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
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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) than supported by the board\n", i + 1);
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return -EINVAL;
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}
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ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
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if (ret) {
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printf("Warning: failed to initialize mmc dev %d\n", i);
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return ret;
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}
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}
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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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#ifdef CONFIG_SYS_I2C_MXC
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setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
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#endif
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return 0;
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}
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int board_late_init(void)
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{
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pfuze_init();
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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: MX6SX SABRE SDB\n");
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return 0;
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}
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