upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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582 lines
17 KiB
582 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0+
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/*
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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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#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/mach-imx/iomux-v3.h>
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#include <asm/io.h>
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#include <asm/mach-imx/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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#include "../common/pfuze.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 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 LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
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PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)
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#define WDOG_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_PKE | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm)
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int dram_init(void)
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{
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gd->ram_size = imx_ddr_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 wdog_b_pad = {
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MX6_PAD_GPIO1_IO13__GPIO1_IO_13 | MUX_PAD_CTRL(WDOG_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, ret;
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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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ret = enable_fec_anatop_clock(0, ENET_125MHZ);
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if (ret)
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return ret;
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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_request(IMX_GPIO_NR(2, 6), "enet_rst");
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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_request(IMX_GPIO_NR(2, 7), "phy_rst");
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gpio_direction_output(IMX_GPIO_NR(2, 7) , 0);
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mdelay(10);
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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 0;
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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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int power_init_board(void)
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{
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struct udevice *dev;
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unsigned int reg;
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int ret;
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dev = pfuze_common_init();
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if (!dev)
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return -ENODEV;
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ret = pfuze_mode_init(dev, APS_PFM);
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if (ret < 0)
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return ret;
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/* Enable power of VGEN5 3V3, needed for SD3 */
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reg = pmic_reg_read(dev, PFUZE100_VGEN5VOL);
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reg &= ~LDO_VOL_MASK;
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reg |= (LDOB_3_30V | (1 << LDO_EN));
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pmic_reg_write(dev, 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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return 0;
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}
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int board_mmc_get_env_dev(int devno)
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{
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return devno;
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}
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#ifdef CONFIG_FSL_QSPI
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#define QSPI_PAD_CTRL1 \
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(PAD_CTL_SRE_FAST | PAD_CTL_SPEED_HIGH | \
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PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_40ohm)
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static iomux_v3_cfg_t const quadspi_pads[] = {
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MX6_PAD_NAND_WP_B__QSPI2_A_DATA_0 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_READY_B__QSPI2_A_DATA_1 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_CE0_B__QSPI2_A_DATA_2 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_CE1_B__QSPI2_A_DATA_3 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_ALE__QSPI2_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_CLE__QSPI2_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_DATA07__QSPI2_A_DQS | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_DATA01__QSPI2_B_DATA_0 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_DATA00__QSPI2_B_DATA_1 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_WE_B__QSPI2_B_DATA_2 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_RE_B__QSPI2_B_DATA_3 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_DATA03__QSPI2_B_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_DATA02__QSPI2_B_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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MX6_PAD_NAND_DATA05__QSPI2_B_DQS | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
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};
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int board_qspi_init(void)
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{
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/* Set the iomux */
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imx_iomux_v3_setup_multiple_pads(quadspi_pads,
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ARRAY_SIZE(quadspi_pads));
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/* Set the clock */
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enable_qspi_clk(1);
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return 0;
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}
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#endif
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#ifdef CONFIG_VIDEO_MXS
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static iomux_v3_cfg_t const lcd_pads[] = {
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MX6_PAD_LCD1_CLK__LCDIF1_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_ENABLE__LCDIF1_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_HSYNC__LCDIF1_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_VSYNC__LCDIF1_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA00__LCDIF1_DATA_0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA01__LCDIF1_DATA_1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA02__LCDIF1_DATA_2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA03__LCDIF1_DATA_3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA04__LCDIF1_DATA_4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA05__LCDIF1_DATA_5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA06__LCDIF1_DATA_6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA07__LCDIF1_DATA_7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA08__LCDIF1_DATA_8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA09__LCDIF1_DATA_9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA10__LCDIF1_DATA_10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA11__LCDIF1_DATA_11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA12__LCDIF1_DATA_12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA13__LCDIF1_DATA_13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA14__LCDIF1_DATA_14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA15__LCDIF1_DATA_15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA16__LCDIF1_DATA_16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA17__LCDIF1_DATA_17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA18__LCDIF1_DATA_18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA19__LCDIF1_DATA_19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA20__LCDIF1_DATA_20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA21__LCDIF1_DATA_21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA22__LCDIF1_DATA_22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_DATA23__LCDIF1_DATA_23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX6_PAD_LCD1_RESET__GPIO3_IO_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* Use GPIO for Brightness adjustment, duty cycle = period */
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MX6_PAD_SD1_DATA2__GPIO6_IO_4 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static int setup_lcd(void)
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{
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enable_lcdif_clock(LCDIF1_BASE_ADDR, 1);
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imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
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/* Reset the LCD */
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gpio_request(IMX_GPIO_NR(3, 27), "lcd_rst");
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gpio_direction_output(IMX_GPIO_NR(3, 27) , 0);
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udelay(500);
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gpio_direction_output(IMX_GPIO_NR(3, 27) , 1);
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/* Set Brightness to high */
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gpio_request(IMX_GPIO_NR(6, 4), "lcd_bright");
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gpio_direction_output(IMX_GPIO_NR(6, 4) , 1);
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return 0;
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}
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#endif
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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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/*
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* Because kernel set WDOG_B mux before pad with the common pinctrl
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* framwork now and wdog reset will be triggered once set WDOG_B mux
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* with default pad setting, we set pad setting here to workaround this.
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* Since imx_iomux_v3_setup_pad also set mux before pad setting, we set
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* as GPIO mux firstly here to workaround it.
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*/
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imx_iomux_v3_setup_pad(wdog_b_pad);
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/* Active high for ncp692 */
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gpio_request(IMX_GPIO_NR(4, 16), "ncp692_en");
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gpio_direction_output(IMX_GPIO_NR(4, 16), 1);
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#ifdef CONFIG_FSL_QSPI
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board_qspi_init();
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#endif
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#ifdef CONFIG_VIDEO_MXS
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setup_lcd();
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#endif
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return 0;
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}
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static bool is_reva(void)
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{
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return (nxp_board_rev() == 1);
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}
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int board_late_init(void)
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{
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#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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if (is_reva())
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env_set("board_rev", "REVA");
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#endif
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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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printf("Board: MX6SX SABRE SDB rev%c\n", nxp_board_rev_string());
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return 0;
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}
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#ifdef CONFIG_SPL_BUILD
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#include <linux/libfdt.h>
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#include <spl.h>
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#include <asm/arch/mx6-ddr.h>
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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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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),
|
|
MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA4__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA5__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA6__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD3_DATA7__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
|
|
/* CD pin */
|
|
MX6_PAD_KEY_COL0__GPIO2_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
|
|
/* RST_B, used for power reset cycle */
|
|
MX6_PAD_KEY_COL1__GPIO2_IO_11 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
};
|
|
|
|
static iomux_v3_cfg_t const usdhc4_pads[] = {
|
|
MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
|
|
MX6_PAD_SD4_DATA7__GPIO6_IO_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
};
|
|
|
|
int board_mmc_init(bd_t *bis)
|
|
{
|
|
struct src *src_regs = (struct src *)SRC_BASE_ADDR;
|
|
u32 val;
|
|
u32 port;
|
|
|
|
val = readl(&src_regs->sbmr1);
|
|
|
|
if ((val & 0xc0) != 0x40) {
|
|
printf("Not boot from USDHC!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
port = (val >> 11) & 0x3;
|
|
printf("port %d\n", port);
|
|
switch (port) {
|
|
case 1:
|
|
imx_iomux_v3_setup_multiple_pads(
|
|
usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
|
|
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
|
|
usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
|
|
break;
|
|
case 2:
|
|
imx_iomux_v3_setup_multiple_pads(
|
|
usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
|
|
gpio_direction_input(USDHC3_CD_GPIO);
|
|
gpio_direction_output(USDHC3_PWR_GPIO, 1);
|
|
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
|
|
usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
|
|
break;
|
|
case 3:
|
|
imx_iomux_v3_setup_multiple_pads(
|
|
usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
|
|
gpio_direction_input(USDHC4_CD_GPIO);
|
|
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
|
|
usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
|
|
break;
|
|
}
|
|
|
|
gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
|
|
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
|
|
}
|
|
|
|
int board_mmc_getcd(struct mmc *mmc)
|
|
{
|
|
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
|
|
int ret = 0;
|
|
|
|
switch (cfg->esdhc_base) {
|
|
case USDHC2_BASE_ADDR:
|
|
ret = 1; /* Assume uSDHC2 is always present */
|
|
break;
|
|
case USDHC3_BASE_ADDR:
|
|
ret = !gpio_get_value(USDHC3_CD_GPIO);
|
|
break;
|
|
case USDHC4_BASE_ADDR:
|
|
ret = !gpio_get_value(USDHC4_CD_GPIO);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
const struct mx6sx_iomux_ddr_regs mx6_ddr_ioregs = {
|
|
.dram_dqm0 = 0x00000028,
|
|
.dram_dqm1 = 0x00000028,
|
|
.dram_dqm2 = 0x00000028,
|
|
.dram_dqm3 = 0x00000028,
|
|
.dram_ras = 0x00000020,
|
|
.dram_cas = 0x00000020,
|
|
.dram_odt0 = 0x00000020,
|
|
.dram_odt1 = 0x00000020,
|
|
.dram_sdba2 = 0x00000000,
|
|
.dram_sdcke0 = 0x00003000,
|
|
.dram_sdcke1 = 0x00003000,
|
|
.dram_sdclk_0 = 0x00000030,
|
|
.dram_sdqs0 = 0x00000028,
|
|
.dram_sdqs1 = 0x00000028,
|
|
.dram_sdqs2 = 0x00000028,
|
|
.dram_sdqs3 = 0x00000028,
|
|
.dram_reset = 0x00000020,
|
|
};
|
|
|
|
const struct mx6sx_iomux_grp_regs mx6_grp_ioregs = {
|
|
.grp_addds = 0x00000020,
|
|
.grp_ddrmode_ctl = 0x00020000,
|
|
.grp_ddrpke = 0x00000000,
|
|
.grp_ddrmode = 0x00020000,
|
|
.grp_b0ds = 0x00000028,
|
|
.grp_b1ds = 0x00000028,
|
|
.grp_ctlds = 0x00000020,
|
|
.grp_ddr_type = 0x000c0000,
|
|
.grp_b2ds = 0x00000028,
|
|
.grp_b3ds = 0x00000028,
|
|
};
|
|
|
|
const struct mx6_mmdc_calibration mx6_mmcd_calib = {
|
|
.p0_mpwldectrl0 = 0x00290025,
|
|
.p0_mpwldectrl1 = 0x00220022,
|
|
.p0_mpdgctrl0 = 0x41480144,
|
|
.p0_mpdgctrl1 = 0x01340130,
|
|
.p0_mprddlctl = 0x3C3E4244,
|
|
.p0_mpwrdlctl = 0x34363638,
|
|
};
|
|
|
|
static struct mx6_ddr3_cfg mem_ddr = {
|
|
.mem_speed = 1600,
|
|
.density = 4,
|
|
.width = 32,
|
|
.banks = 8,
|
|
.rowaddr = 15,
|
|
.coladdr = 10,
|
|
.pagesz = 2,
|
|
.trcd = 1375,
|
|
.trcmin = 4875,
|
|
.trasmin = 3500,
|
|
};
|
|
|
|
static void ccgr_init(void)
|
|
{
|
|
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
|
|
|
|
writel(0xFFFFFFFF, &ccm->CCGR0);
|
|
writel(0xFFFFFFFF, &ccm->CCGR1);
|
|
writel(0xFFFFFFFF, &ccm->CCGR2);
|
|
writel(0xFFFFFFFF, &ccm->CCGR3);
|
|
writel(0xFFFFFFFF, &ccm->CCGR4);
|
|
writel(0xFFFFFFFF, &ccm->CCGR5);
|
|
writel(0xFFFFFFFF, &ccm->CCGR6);
|
|
writel(0xFFFFFFFF, &ccm->CCGR7);
|
|
}
|
|
|
|
static void spl_dram_init(void)
|
|
{
|
|
struct mx6_ddr_sysinfo sysinfo = {
|
|
.dsize = mem_ddr.width/32,
|
|
.cs_density = 24,
|
|
.ncs = 1,
|
|
.cs1_mirror = 0,
|
|
.rtt_wr = 2,
|
|
.rtt_nom = 2, /* RTT_Nom = RZQ/2 */
|
|
.walat = 1, /* Write additional latency */
|
|
.ralat = 5, /* Read additional latency */
|
|
.mif3_mode = 3, /* Command prediction working mode */
|
|
.bi_on = 1, /* Bank interleaving enabled */
|
|
.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
|
|
.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
|
|
.ddr_type = DDR_TYPE_DDR3,
|
|
.refsel = 1, /* Refresh cycles at 32KHz */
|
|
.refr = 7, /* 8 refresh commands per refresh cycle */
|
|
};
|
|
|
|
mx6sx_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
|
|
mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
|
|
}
|
|
|
|
void board_init_f(ulong dummy)
|
|
{
|
|
/* setup AIPS and disable watchdog */
|
|
arch_cpu_init();
|
|
|
|
ccgr_init();
|
|
|
|
/* iomux and setup of i2c */
|
|
board_early_init_f();
|
|
|
|
/* setup GP timer */
|
|
timer_init();
|
|
|
|
/* UART clocks enabled and gd valid - init serial console */
|
|
preloader_console_init();
|
|
|
|
/* DDR initialization */
|
|
spl_dram_init();
|
|
|
|
/* Clear the BSS. */
|
|
memset(__bss_start, 0, __bss_end - __bss_start);
|
|
|
|
/* load/boot image from boot device */
|
|
board_init_r(NULL, 0);
|
|
}
|
|
#endif
|
|
|