// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Stefano Babic <sbabic@denx.de>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/mach-imx/spi.h>
#include <linux/errno.h>
#include <asm/gpio.h>
#include <mmc.h>
#include <i2c.h>
#include <fsl_esdhc.h>
#include <nand.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/arch/sys_proto.h>
#include <asm/sections.h>
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_FAST)
#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
#define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14)
#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
#define GREEN_LED IMX_GPIO_NR(2, 31)
#define RED_LED IMX_GPIO_NR(1, 30)
#define IMX6Q_DRIVE_STRENGTH 0x30
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static iomux_v3_cfg_t const uart4_pads[] = {
IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
};
static iomux_v3_cfg_t const enet_pads[] = {
IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL |
MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK |
MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL |
MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT1__GPIO1_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static iomux_v3_cfg_t const ecspi3_pads[] = {
IOMUX_PADS(PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
IOMUX_PADS(PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)),
IOMUX_PADS(PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)),
IOMUX_PADS(PAD_DISP0_DAT3__GPIO4_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static iomux_v3_cfg_t const gpios_pads[] = {
IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT4__GPIO2_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT5__GPIO2_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT6__GPIO2_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT7__GPIO2_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_EIM_EB3__GPIO2_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_TXD0__GPIO1_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
#ifdef CONFIG_CMD_NAND
/* NAND */
static iomux_v3_cfg_t const nfc_pads[] = {
IOMUX_PADS(PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NAND_PAD_CTRL)),
};
#endif
static struct i2c_pads_info i2c_pad_info = {
.scl = {
.i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | I2C_PAD,
.gpio_mode = MX6Q_PAD_EIM_D21__GPIO3_IO21 | I2C_PAD,
.gp = IMX_GPIO_NR(3, 21)
},
.sda = {
.i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | I2C_PAD,
.gpio_mode = MX6Q_PAD_EIM_D28__GPIO3_IO28 | I2C_PAD,
.gp = IMX_GPIO_NR(3, 28)
}
};
static struct fsl_esdhc_cfg usdhc_cfg[] = {
{USDHC3_BASE_ADDR,
.max_bus_width = 4},
{.esdhc_base = USDHC2_BASE_ADDR,
.max_bus_width = 4},
};
#if !defined(CONFIG_SPL_BUILD)
static iomux_v3_cfg_t const usdhc2_pads[] = {
IOMUX_PADS(PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
#endif
static iomux_v3_cfg_t const usdhc3_pads[] = {
IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
};
int board_mmc_get_env_dev(int devno)
{
return devno - 1;
}
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 = !gpio_get_value(USDHC2_CD_GPIO);
ret = 1;
break;
case USDHC3_BASE_ADDR:
ret = 1;
break;
}
return ret;
}
#ifndef CONFIG_SPL_BUILD
int board_mmc_init(bd_t *bis)
{
int ret;
int i;
for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
switch (i) {
case 0:
SETUP_IOMUX_PADS(usdhc3_pads);
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
break;
case 1:
SETUP_IOMUX_PADS(usdhc2_pads);
gpio_direction_input(USDHC2_CD_GPIO);
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
break;
default:
printf("Warning: you configured more USDHC controllers"
"(%d) then supported by the board (%d)\n",
i + 1, CONFIG_SYS_FSL_USDHC_NUM);
return -EINVAL;
}
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
if (ret)
return ret;
}
return 0;
}
#endif
static void setup_iomux_uart(void)
{
SETUP_IOMUX_PADS(uart4_pads);
}
static void setup_iomux_enet(void)
{
SETUP_IOMUX_PADS(enet_pads);
gpio_direction_output(ENET_PHY_RESET_GPIO, 0);
mdelay(10);
gpio_set_value(ENET_PHY_RESET_GPIO, 1);
mdelay(30);
}
static void setup_spi(void)
{
gpio_request(IMX_GPIO_NR(4, 24), "spi_cs0");
gpio_direction_output(IMX_GPIO_NR(4, 24), 1);
SETUP_IOMUX_PADS(ecspi3_pads);
enable_spi_clk(true, 2);
}
static void setup_gpios(void)
{
SETUP_IOMUX_PADS(gpios_pads);
}
#ifdef CONFIG_CMD_NAND
static void setup_gpmi_nand(void)
{
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
/* config gpmi nand iomux */
SETUP_IOMUX_PADS(nfc_pads);
/* gate ENFC_CLK_ROOT clock first,before clk source switch */
clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
/* config gpmi and bch clock to 100 MHz */
clrsetbits_le32(&mxc_ccm->cs2cdr,
MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
/* enable ENFC_CLK_ROOT clock */
setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
/* enable gpmi and bch clock gating */
setbits_le32(&mxc_ccm->CCGR4,
MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
/* enable apbh clock gating */
setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
}
#endif
/*
* Board revision is coded in 4 GPIOs
*/
u32 get_board_rev(void)
{
u32 rev;
int i;
for (i = 0, rev = 0; i < 4; i++)
rev |= (gpio_get_value(IMX_GPIO_NR(2, 12 + i)) << i);
return 16 - rev;
}
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
if (bus != 2 || (cs != 0))
return -EINVAL;
return IMX_GPIO_NR(4, 24);
}
int board_eth_init(bd_t *bis)
{
setup_iomux_enet();
return cpu_eth_init(bis);
}
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
#ifdef CONFIG_SYS_I2C_MXC
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info);
#endif
#ifdef CONFIG_MXC_SPI
setup_spi();
#endif
setup_gpios();
#ifdef CONFIG_CMD_NAND
setup_gpmi_nand();
#endif
return 0;
}
#ifdef CONFIG_CMD_BMODE
/*
* BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4
* see Table 8-11 and Table 5-9
* BOOT_CFG1[7] = 1 (boot from NAND)
* BOOT_CFG1[5] = 0 - raw NAND
* BOOT_CFG1[4] = 0 - default pad settings
* BOOT_CFG1[3:2] = 00 - devices = 1
* BOOT_CFG1[1:0] = 00 - Row Address Cycles = 3
* BOOT_CFG2[4:3] = 00 - Boot Search Count = 2
* BOOT_CFG2[2:1] = 01 - Pages In Block = 64
* BOOT_CFG2[0] = 0 - Reset time 12ms
*/
static const struct boot_mode board_boot_modes[] = {
/* NAND: 64pages per block, 3 row addr cycles, 2 copies of FCB/DBBT */
{"nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00)},
{"mmc0", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
{NULL, 0},
};
#endif
int board_late_init(void)
{
char buf[10];
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
snprintf(buf, sizeof(buf), "%d", get_board_rev());
env_set("board_rev", buf);
return 0;
}
#ifdef CONFIG_SPL_BUILD
#include <asm/arch/mx6-ddr.h>
#include <spl.h>
#include <linux/libfdt.h>
#define MX6_PHYFLEX_ERR006282 IMX_GPIO_NR(2, 11)
static void phyflex_err006282_workaround(void)
{
/*
* Boards beginning with 1362.2 have the SD4_DAT3 pin connected
* to the CMIC. If this pin isn't toggled within 10s the boards
* reset. The pin is unconnected on older boards, so we do not
* need a check for older boards before applying this fixup.
*/
gpio_direction_output(MX6_PHYFLEX_ERR006282, 0);
mdelay(2);
gpio_direction_output(MX6_PHYFLEX_ERR006282, 1);
mdelay(2);
gpio_set_value(MX6_PHYFLEX_ERR006282, 0);
gpio_direction_input(MX6_PHYFLEX_ERR006282);
}
static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
.dram_sdclk_0 = 0x00000030,
.dram_sdclk_1 = 0x00000030,
.dram_cas = 0x00000030,
.dram_ras = 0x00000030,
.dram_reset = 0x00000030,
.dram_sdcke0 = 0x00003000,
.dram_sdcke1 = 0x00003000,
.dram_sdba2 = 0x00000030,
.dram_sdodt0 = 0x00000030,
.dram_sdodt1 = 0x00000030,
.dram_sdqs0 = 0x00000028,
.dram_sdqs1 = 0x00000028,
.dram_sdqs2 = 0x00000028,
.dram_sdqs3 = 0x00000028,
.dram_sdqs4 = 0x00000028,
.dram_sdqs5 = 0x00000028,
.dram_sdqs6 = 0x00000028,
.dram_sdqs7 = 0x00000028,
.dram_dqm0 = 0x00000028,
.dram_dqm1 = 0x00000028,
.dram_dqm2 = 0x00000028,
.dram_dqm3 = 0x00000028,
.dram_dqm4 = 0x00000028,
.dram_dqm5 = 0x00000028,
.dram_dqm6 = 0x00000028,
.dram_dqm7 = 0x00000028,
};
static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
.grp_ddr_type = 0x000C0000,
.grp_ddrmode_ctl = 0x00020000,
.grp_ddrpke = 0x00000000,
.grp_addds = IMX6Q_DRIVE_STRENGTH,
.grp_ctlds = IMX6Q_DRIVE_STRENGTH,
.grp_ddrmode = 0x00020000,
.grp_b0ds = 0x00000028,
.grp_b1ds = 0x00000028,
.grp_b2ds = 0x00000028,
.grp_b3ds = 0x00000028,
.grp_b4ds = 0x00000028,
.grp_b5ds = 0x00000028,
.grp_b6ds = 0x00000028,
.grp_b7ds = 0x00000028,
};
static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
.p0_mpwldectrl0 = 0x00110011,
.p0_mpwldectrl1 = 0x00240024,
.p1_mpwldectrl0 = 0x00260038,
.p1_mpwldectrl1 = 0x002C0038,
.p0_mpdgctrl0 = 0x03400350,
.p0_mpdgctrl1 = 0x03440340,
.p1_mpdgctrl0 = 0x034C0354,
.p1_mpdgctrl1 = 0x035C033C,
.p0_mprddlctl = 0x322A2A2A,
.p1_mprddlctl = 0x302C2834,
.p0_mpwrdlctl = 0x34303834,
.p1_mpwrdlctl = 0x422A3E36,
};
/* Index in RAM Chip array */
enum {
RAM_MT64K,
RAM_MT128K,
RAM_MT256K
};
static struct mx6_ddr3_cfg mt41k_xx[] = {
/* MT41K64M16JT-125 (1Gb density) */
{
.mem_speed = 1600,
.density = 1,
.width = 16,
.banks = 8,
.rowaddr = 13,
.coladdr = 10,
.pagesz = 2,
.trcd = 1375,
.trcmin = 4875,
.trasmin = 3500,
.SRT = 1,
},
/* MT41K256M16JT-125 (2Gb density) */
{
.mem_speed = 1600,
.density = 2,
.width = 16,
.banks = 8,
.rowaddr = 14,
.coladdr = 10,
.pagesz = 2,
.trcd = 1375,
.trcmin = 4875,
.trasmin = 3500,
.SRT = 1,
},
/* MT41K256M16JT-125 (4Gb density) */
{
.mem_speed = 1600,
.density = 4,
.width = 16,
.banks = 8,
.rowaddr = 15,
.coladdr = 10,
.pagesz = 2,
.trcd = 1375,
.trcmin = 4875,
.trasmin = 3500,
.SRT = 1,
}
};
static void ccgr_init(void)
{
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
writel(0x00C03F3F, &ccm->CCGR0);
writel(0x0030FC03, &ccm->CCGR1);
writel(0x0FFFC000, &ccm->CCGR2);
writel(0x3FF00000, &ccm->CCGR3);
writel(0x00FFF300, &ccm->CCGR4);
writel(0x0F0000C3, &ccm->CCGR5);
writel(0x000003FF, &ccm->CCGR6);
}
static void spl_dram_init(struct mx6_ddr_sysinfo *sysinfo,
struct mx6_ddr3_cfg *mem_ddr)
{
mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
mx6_dram_cfg(sysinfo, &mx6_mmcd_calib, mem_ddr);
}
int board_mmc_init(bd_t *bis)
{
if (spl_boot_device() == BOOT_DEVICE_SPI)
printf("MMC SEtup, Boot SPI");
SETUP_IOMUX_PADS(usdhc3_pads);
usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
usdhc_cfg[0].max_bus_width = 4;
gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}
void board_boot_order(u32 *spl_boot_list)
{
spl_boot_list[0] = spl_boot_device();
printf("Boot device %x\n", spl_boot_list[0]);
switch (spl_boot_list[0]) {
case BOOT_DEVICE_SPI:
spl_boot_list[1] = BOOT_DEVICE_UART;
break;
case BOOT_DEVICE_MMC1:
spl_boot_list[1] = BOOT_DEVICE_SPI;
spl_boot_list[2] = BOOT_DEVICE_UART;
break;
default:
printf("Boot device %x\n", spl_boot_list[0]);
}
}
/*
* This is used because get_ram_size() does not
* take care of cache, resulting a wrong size
* pfla02 has just 1, 2 or 4 GB option
* Function checks for mirrors in the first CS
*/
#define RAM_TEST_PATTERN 0xaa5555aa
#define MIN_BANK_SIZE (512 * 1024 * 1024)
static unsigned int pfla02_detect_chiptype(void)
{
u32 *p, *p1;
unsigned int offset = MIN_BANK_SIZE;
int i;
for (i = 0; i < 2; i++) {
p = (u32 *)PHYS_SDRAM;
p1 = (u32 *)(PHYS_SDRAM + (i + 1) * offset);
*p1 = 0;
*p = RAM_TEST_PATTERN;
/*
* This is required to detect mirroring
* else we read back values from cache
*/
flush_dcache_all();
if (*p == *p1)
return i;
}
return RAM_MT256K;
}
void board_init_f(ulong dummy)
{
unsigned int ramchip;
struct mx6_ddr_sysinfo sysinfo = {
/* width of data bus:0=16,1=32,2=64 */
.dsize = 2,
/* config for full 4GB range so that get_mem_size() works */
.cs_density = 32, /* 512 MB */
/* single chip select */
#if IS_ENABLED(CONFIG_SPL_DRAM_1_BANK)
.ncs = 1,
#else
.ncs = 2,
#endif
.cs1_mirror = 1,
.rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
.rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */
.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 */
};
#ifdef CONFIG_CMD_NAND
/* Enable NAND */
setup_gpmi_nand();
#endif
/* setup clock gating */
ccgr_init();
/* setup AIPS and disable watchdog */
arch_cpu_init();
/* setup AXI */
gpr_init();
board_early_init_f();
/* setup GP timer */
timer_init();
/* UART clocks enabled and gd valid - init serial console */
preloader_console_init();
setup_spi();
setup_gpios();
/* DDR initialization */
spl_dram_init(&sysinfo, &mt41k_xx[RAM_MT256K]);
ramchip = pfla02_detect_chiptype();
debug("Detected chip %d\n", ramchip);
#if !IS_ENABLED(CONFIG_SPL_DRAM_1_BANK)
switch (ramchip) {
case RAM_MT64K:
sysinfo.cs_density = 6;
break;
case RAM_MT128K:
sysinfo.cs_density = 10;
break;
case RAM_MT256K:
sysinfo.cs_density = 18;
break;
}
#endif
spl_dram_init(&sysinfo, &mt41k_xx[ramchip]);
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
phyflex_err006282_workaround();
/* load/boot image from boot device */
board_init_r(NULL, 0);
}
#endif