[U-Boot] [PATCH v3 15/15] imx: mx6ul_14x14_evk add basic board support
Stefano Babic
sbabic at denx.de
Sun Aug 2 11:18:24 CEST 2015
On 20/07/2015 13:28, Peng Fan wrote:
> 1. Add USDHC, I2C, UART, 74LV, USB, QSPI support.
> 2. Support SPL
> 3. CONFIG_MX6UL_14X14_EVK_EMMC_REWORK is introduced, this board default
> supports sd for usdhc2, but can do hardware rework to make usdhc2 support
> emmc.
>
> Boot Log:
> U-Boot SPL 2015.07-rc3-00124-g35d727b (Jul 20 2015 - 18:40:59)
> reading u-boot.img
> reading u-boot.img
>
> U-Boot 2015.07-rc3-00124-g35d727b (Jul 20 2015 - 18:40:59 +0800)
>
> CPU: Freescale i.MX6UL rev1.0 792 MHz (running at 396 MHz)
> CPU: Commercial temperature grade (0C to 95C)CPU: Thermal invalid data, fuse: 0x0
> - invalid sensor device
> Reset cause: POR
> Board: MX6UL 14x14 EVK
> I2C: ready
> DRAM: 512 MiB
> MMC: FSL_SDHC: 0, FSL_SDHC: 1
> *** Warning - bad CRC, using default environment
>
> In: serial
> Out: serial
> Err: serial
> Net: CPU Net Initialization Failed
> No ethernet found.
> Hit any key to stop autoboot: 0
>
> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
> ---
>
> Changes v3:
> none
>
> Changes v2:
> Add SPL support
> More commit msg for CONFIG_MX6UL_14X14_EVK_EMMC_REWORK.
>
> arch/arm/Kconfig | 8 +
> board/freescale/mx6ul_14x14_evk/Kconfig | 15 +
> board/freescale/mx6ul_14x14_evk/MAINTAINERS | 6 +
> board/freescale/mx6ul_14x14_evk/Makefile | 6 +
> board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c | 636 ++++++++++++++++++++++
> configs/mx6ul_14x14_evk_defconfig | 4 +
> include/configs/mx6ul_14x14_evk.h | 227 ++++++++
> 7 files changed, 902 insertions(+)
> create mode 100644 board/freescale/mx6ul_14x14_evk/Kconfig
> create mode 100644 board/freescale/mx6ul_14x14_evk/MAINTAINERS
> create mode 100644 board/freescale/mx6ul_14x14_evk/Makefile
> create mode 100644 board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
> create mode 100644 configs/mx6ul_14x14_evk_defconfig
> create mode 100644 include/configs/mx6ul_14x14_evk.h
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 9908b43..14a622e 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -575,6 +575,13 @@ config TARGET_MX6SXSABRESD
> select DM
> select DM_THERMAL
>
> +config TARGET_MX6UL_14X14_EVK
> + bool "Support mx6ul_14x14_evk"
> + select CPU_V7
> + select DM
> + select DM_THERMAL
> + select SUPPORT_SPL
> +
> config TARGET_GW_VENTANA
> bool "Support gw_ventana"
> select CPU_V7
> @@ -920,6 +927,7 @@ source "board/freescale/mx6qsabreauto/Kconfig"
> source "board/freescale/mx6sabresd/Kconfig"
> source "board/freescale/mx6slevk/Kconfig"
> source "board/freescale/mx6sxsabresd/Kconfig"
> +source "board/freescale/mx6ul_14x14_evk/Kconfig"
> source "board/freescale/vf610twr/Kconfig"
> source "board/gateworks/gw_ventana/Kconfig"
> source "board/genesi/mx51_efikamx/Kconfig"
> diff --git a/board/freescale/mx6ul_14x14_evk/Kconfig b/board/freescale/mx6ul_14x14_evk/Kconfig
> new file mode 100644
> index 0000000..393aca6
> --- /dev/null
> +++ b/board/freescale/mx6ul_14x14_evk/Kconfig
> @@ -0,0 +1,15 @@
> +if TARGET_MX6UL_14X14_EVK
> +
> +config SYS_BOARD
> + default "mx6ul_14x14_evk"
> +
> +config SYS_VENDOR
> + default "freescale"
> +
> +config SYS_SOC
> + default "mx6"
> +
> +config SYS_CONFIG_NAME
> + default "mx6ul_14x14_evk"
> +
> +endif
> diff --git a/board/freescale/mx6ul_14x14_evk/MAINTAINERS b/board/freescale/mx6ul_14x14_evk/MAINTAINERS
> new file mode 100644
> index 0000000..611feca
> --- /dev/null
> +++ b/board/freescale/mx6ul_14x14_evk/MAINTAINERS
> @@ -0,0 +1,6 @@
> +MX6ULEVK BOARD
> +M: Peng Fan <Peng.Fan at freescale.com>
> +S: Maintained
> +F: board/freescale/mx6ul_14x14_evk/
> +F: include/configs/mx6ul_14x14_evk.h
> +F: configs/mx6ul_14x14_evk_defconfig
> diff --git a/board/freescale/mx6ul_14x14_evk/Makefile b/board/freescale/mx6ul_14x14_evk/Makefile
> new file mode 100644
> index 0000000..61f6778
> --- /dev/null
> +++ b/board/freescale/mx6ul_14x14_evk/Makefile
> @@ -0,0 +1,6 @@
> +# (C) Copyright 2015 Freescale Semiconductor, Inc.
> +#
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +
> +obj-y := mx6ul_14x14_evk.o
> diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
> new file mode 100644
> index 0000000..8f712cb
> --- /dev/null
> +++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
> @@ -0,0 +1,636 @@
> +/*
> + * Copyright (C) 2015 Freescale Semiconductor, Inc.
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <asm/arch/clock.h>
> +#include <asm/arch/iomux.h>
> +#include <asm/arch/imx-regs.h>
> +#include <asm/arch/crm_regs.h>
> +#include <asm/arch/mx6ul_pins.h>
> +#include <asm/arch/mx6-pins.h>
> +#include <asm/arch/sys_proto.h>
> +#include <asm/gpio.h>
> +#include <asm/imx-common/iomux-v3.h>
> +#include <asm/imx-common/boot_mode.h>
> +#include <asm/imx-common/mxc_i2c.h>
> +#include <asm/io.h>
> +#include <common.h>
> +#include <fsl_esdhc.h>
> +#include <i2c.h>
> +#include <linux/sizes.h>
> +#include <mmc.h>
> +#include <usb.h>
> +#include <usb/ehci-fsl.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
> + 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_PKE | PAD_CTL_PUE | \
> + PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
> + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
> +
> +#define USDHC_DAT3_CD_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
> + PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_LOW | \
> + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
> +
> +#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
> + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
> + PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
> + PAD_CTL_ODE)
> +
> +#define IOX_SDI IMX_GPIO_NR(5, 10)
> +#define IOX_STCP IMX_GPIO_NR(5, 7)
> +#define IOX_SHCP IMX_GPIO_NR(5, 11)
> +#define IOX_OE IMX_GPIO_NR(5, 18)
> +
> +static iomux_v3_cfg_t const iox_pads[] = {
> + /* IOX_SDI */
> + MX6_PAD_BOOT_MODE0__GPIO5_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
> + /* IOX_SHCP */
> + MX6_PAD_BOOT_MODE1__GPIO5_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
> + /* IOX_STCP */
> + MX6_PAD_SNVS_TAMPER7__GPIO5_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL),
> + /* IOX_nOE */
> + MX6_PAD_SNVS_TAMPER8__GPIO5_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
> +};
> +
> +/*
> + * HDMI_nRST --> Q0
> + * ENET1_nRST --> Q1
> + * ENET2_nRST --> Q2
> + * CAN1_2_STBY --> Q3
> + * BT_nPWD --> Q4
> + * CSI_RST --> Q5
> + * CSI_PWDN --> Q6
> + * LCD_nPWREN --> Q7
> + */
> +enum qn {
> + HDMI_NRST,
> + ENET1_NRST,
> + ENET2_NRST,
> + CAN1_2_STBY,
> + BT_NPWD,
> + CSI_RST,
> + CSI_PWDN,
> + LCD_NPWREN,
> +};
> +
> +enum qn_func {
> + qn_reset,
> + qn_enable,
> + qn_disable,
> +};
> +
> +enum qn_level {
> + qn_low = 0,
> + qn_high = 1,
> +};
> +
> +static enum qn_level seq[3][2] = {
> + {0, 1}, {1, 1}, {0, 0}
> +};
> +
> +static enum qn_func qn_output[8] = {
> + qn_reset, qn_reset, qn_reset, qn_enable, qn_disable, qn_reset,
> + qn_disable, qn_enable
> +};
> +
> +static void iox74lv_init(void)
> +{
> + int i;
> +
> + gpio_direction_output(IOX_OE, 0);
> +
> + for (i = 7; i >= 0; i--) {
> + gpio_direction_output(IOX_SHCP, 0);
> + gpio_direction_output(IOX_SDI, seq[qn_output[i]][0]);
> + udelay(500);
> + gpio_direction_output(IOX_SHCP, 1);
> + udelay(500);
> + }
> +
> + gpio_direction_output(IOX_STCP, 0);
> + udelay(500);
> + /*
> + * shift register will be output to pins
> + */
> + gpio_direction_output(IOX_STCP, 1);
> +
> + for (i = 7; i >= 0; i--) {
> + gpio_direction_output(IOX_SHCP, 0);
> + gpio_direction_output(IOX_SDI, seq[qn_output[i]][1]);
> + udelay(500);
> + gpio_direction_output(IOX_SHCP, 1);
> + udelay(500);
> + }
> + gpio_direction_output(IOX_STCP, 0);
> + udelay(500);
> + /*
> + * shift register will be output to pins
> + */
> + gpio_direction_output(IOX_STCP, 1);
> +
> + gpio_direction_output(IOX_OE, 1);
> +};
> +
> +void iox74lv_set(int index)
> +{
> + int i;
> +
> + gpio_direction_output(IOX_OE, 0);
> +
> + for (i = 7; i >= 0; i--) {
> + gpio_direction_output(IOX_SHCP, 0);
> +
> + if (i == index)
> + gpio_direction_output(IOX_SDI, seq[qn_output[i]][0]);
> + else
> + gpio_direction_output(IOX_SDI, seq[qn_output[i]][1]);
> + udelay(500);
> + gpio_direction_output(IOX_SHCP, 1);
> + udelay(500);
> + }
> +
> + gpio_direction_output(IOX_STCP, 0);
> + udelay(500);
> + /*
> + * shift register will be output to pins
> + */
> + gpio_direction_output(IOX_STCP, 1);
> +
> + for (i = 7; i >= 0; i--) {
> + gpio_direction_output(IOX_SHCP, 0);
> + gpio_direction_output(IOX_SDI, seq[qn_output[i]][1]);
> + udelay(500);
> + gpio_direction_output(IOX_SHCP, 1);
> + udelay(500);
> + }
> +
> + gpio_direction_output(IOX_STCP, 0);
> + udelay(500);
> + /*
> + * shift register will be output to pins
> + */
> + gpio_direction_output(IOX_STCP, 1);
> +
> + gpio_direction_output(IOX_OE, 1);
> +};
> +
> +#ifdef CONFIG_SYS_I2C_MXC
> +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
> +/* I2C1 for PMIC and EEPROM */
> +struct i2c_pads_info i2c_pad_info1 = {
> + .scl = {
> + .i2c_mode = MX6_PAD_UART4_TX_DATA__I2C1_SCL | PC,
> + .gpio_mode = MX6_PAD_UART4_TX_DATA__GPIO1_IO28 | PC,
> + .gp = IMX_GPIO_NR(1, 28),
> + },
> + .sda = {
> + .i2c_mode = MX6_PAD_UART4_RX_DATA__I2C1_SDA | PC,
> + .gpio_mode = MX6_PAD_UART4_RX_DATA__GPIO1_IO29 | PC,
> + .gp = IMX_GPIO_NR(1, 29),
> + },
> +};
> +#endif
> +
> +int dram_init(void)
> +{
> + gd->ram_size = PHYS_SDRAM_SIZE;
> +
> + return 0;
> +}
> +
> +static iomux_v3_cfg_t const uart1_pads[] = {
> + MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
> + MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
> +};
> +
> +static iomux_v3_cfg_t const usdhc1_pads[] = {
> + MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> +
> + /* VSELECT */
> + MX6_PAD_GPIO1_IO05__USDHC1_VSELECT | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + /* CD */
> + MX6_PAD_UART1_RTS_B__GPIO1_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
> + /* RST_B */
> + MX6_PAD_GPIO1_IO09__GPIO1_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
> +};
> +
> +/*
> + * mx6ul_14x14_evk board default supports sd card. If want to use
> + * EMMC, need to do board rework for sd2.
> + * Introduce CONFIG_MX6UL_14X14_EVK_EMMC_REWORK, if sd2 reworked to support
> + * emmc, need to define this macro.
> + */
> +#if defined(CONFIG_MX6UL_14X14_EVK_EMMC_REWORK)
> +static iomux_v3_cfg_t const usdhc2_emmc_pads[] = {
> + MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA04__USDHC2_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA05__USDHC2_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA06__USDHC2_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA07__USDHC2_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> +
> + /*
> + * RST_B
> + */
> + MX6_PAD_NAND_ALE__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
> +};
> +#else
> +static iomux_v3_cfg_t const usdhc2_pads[] = {
> + MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> + MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
> +};
> +
> +static iomux_v3_cfg_t const usdhc2_cd_pads[] = {
> + /*
> + * The evk board uses DAT3 to detect CD card plugin,
> + * in u-boot we mux the pin to GPIO when doing board_mmc_getcd.
> + */
> + MX6_PAD_NAND_DATA03__GPIO4_IO05 | MUX_PAD_CTRL(USDHC_DAT3_CD_PAD_CTRL),
> +};
> +
> +static iomux_v3_cfg_t const usdhc2_dat3_pads[] = {
> + MX6_PAD_NAND_DATA03__USDHC2_DATA3 |
> + MUX_PAD_CTRL(USDHC_DAT3_CD_PAD_CTRL),
> +};
> +#endif
> +
> +static void setup_iomux_uart(void)
> +{
> + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
> +}
> +
> +#ifdef CONFIG_FSL_QSPI
> +
> +#define QSPI_PAD_CTRL1 \
> + (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \
> + PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_60ohm)
> +
> +static iomux_v3_cfg_t const quadspi_pads[] = {
> + MX6_PAD_NAND_WP_B__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
> + MX6_PAD_NAND_READY_B__QSPI_A_DATA00 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
> + MX6_PAD_NAND_CE0_B__QSPI_A_DATA01 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
> + MX6_PAD_NAND_CE1_B__QSPI_A_DATA02 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
> + MX6_PAD_NAND_CLE__QSPI_A_DATA03 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
> + MX6_PAD_NAND_DQS__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
> +};
> +
> +int board_qspi_init(void)
> +{
> + /* Set the iomux */
> + imx_iomux_v3_setup_multiple_pads(quadspi_pads,
> + ARRAY_SIZE(quadspi_pads));
> + /* Set the clock */
> + enable_qspi_clk(0);
> +
> + return 0;
> +}
> +#endif
> +
> +#ifdef CONFIG_FSL_ESDHC
> +static struct fsl_esdhc_cfg usdhc_cfg[2] = {
> + {USDHC1_BASE_ADDR, 0, 4},
> +#if defined(CONFIG_MX6UL_14X14_EVK_EMMC_REWORK)
> + {USDHC2_BASE_ADDR, 0, 8},
> +#else
> + {USDHC2_BASE_ADDR, 0, 4},
> +#endif
> +};
> +
> +#define USDHC1_CD_GPIO IMX_GPIO_NR(1, 19)
> +#define USDHC1_PWR_GPIO IMX_GPIO_NR(1, 9)
> +#define USDHC2_CD_GPIO IMX_GPIO_NR(4, 5)
> +#define USDHC2_PWR_GPIO IMX_GPIO_NR(4, 10)
> +
> +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 USDHC1_BASE_ADDR:
> + ret = !gpio_get_value(USDHC1_CD_GPIO);
> + break;
> + case USDHC2_BASE_ADDR:
> +#if defined(CONFIG_MX6UL_14X14_EVK_EMMC_REWORK)
> + ret = 1;
> +#else
> + imx_iomux_v3_setup_multiple_pads(usdhc2_cd_pads,
> + ARRAY_SIZE(usdhc2_cd_pads));
> + gpio_direction_input(USDHC2_CD_GPIO);
> +
> + /*
> + * Since it is the DAT3 pin, this pin is pulled to
> + * low voltage if no card
> + */
> + ret = gpio_get_value(USDHC2_CD_GPIO);
> +
> + imx_iomux_v3_setup_multiple_pads(usdhc2_dat3_pads,
> + ARRAY_SIZE(usdhc2_dat3_pads));
> +#endif
> + break;
> + }
> +
> + return ret;
> +}
> +
> +int board_mmc_init(bd_t *bis)
> +{
> +#ifdef CONFIG_SPL_BUILD
> +#if defined(CONFIG_MX6UL_14X14_EVK_EMMC_REWORK)
> + imx_iomux_v3_setup_multiple_pads(usdhc2_emmc_pads,
> + ARRAY_SIZE(usdhc2_emmc_pads));
> +#else
> + imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
> +#endif
> + gpio_direction_output(USDHC2_PWR_GPIO, 0);
> + udelay(500);
> + gpio_direction_output(USDHC2_PWR_GPIO, 1);
> + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
> + return fsl_esdhc_initialize(bis, &usdhc_cfg[1]);
> +#else
> + int i, ret;
> +
> + /*
> + * According to the board_mmc_init() the following map is done:
> + * (U-boot device node) (Physical Port)
> + * mmc0 USDHC1
> + * mmc1 USDHC2
> + */
> + for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
> + switch (i) {
> + case 0:
> + imx_iomux_v3_setup_multiple_pads(
> + usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
> + gpio_direction_input(USDHC1_CD_GPIO);
> + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
> +
> + gpio_direction_output(USDHC1_PWR_GPIO, 0);
> + udelay(500);
> + gpio_direction_output(USDHC1_PWR_GPIO, 1);
> + break;
> + case 1:
> +#if defined(CONFIG_MX6UL_14X14_EVK_EMMC_REWORK)
> + imx_iomux_v3_setup_multiple_pads(
> + usdhc2_emmc_pads, ARRAY_SIZE(usdhc2_emmc_pads));
> +#else
> + imx_iomux_v3_setup_multiple_pads(
> + usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
> +#endif
> + gpio_direction_output(USDHC2_PWR_GPIO, 0);
> + udelay(500);
> + gpio_direction_output(USDHC2_PWR_GPIO, 1);
> + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
> + break;
> + default:
> + printf("Warning: you configured more USDHC controllers (%d) than supported by the board\n", i + 1);
> + return -EINVAL;
> + }
> +
> + ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
> + if (ret) {
> + printf("Warning: failed to initialize mmc dev %d\n", i);
> + return ret;
> + }
> + }
> +#endif
> + return 0;
> +}
> +#endif
> +
> +#ifdef CONFIG_USB_EHCI_MX6
> +#define USB_OTHERREGS_OFFSET 0x800
> +#define UCTRL_PWR_POL (1 << 9)
> +
> +static iomux_v3_cfg_t const usb_otg_pads[] = {
> + MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
> +};
> +
> +/* At default the 3v3 enables the MIC2026 for VBUS power */
> +static void setup_usb(void)
> +{
> + imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
> + ARRAY_SIZE(usb_otg_pads));
> +}
> +
> +int board_usb_phy_mode(int port)
> +{
> + if (port == 1)
> + return USB_INIT_HOST;
> + else
> + return usb_phy_mode(port);
> +}
> +
> +int board_ehci_hcd_init(int port)
> +{
> + u32 *usbnc_usb_ctrl;
> +
> + if (port > 1)
> + return -EINVAL;
> +
> + usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
> + port * 4);
> +
> + /* Set Power polarity */
> + setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
> +
> + return 0;
> +}
> +#endif
> +
> +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;
> +
> + imx_iomux_v3_setup_multiple_pads(iox_pads, ARRAY_SIZE(iox_pads));
> +
> + iox74lv_init();
> +
> +#ifdef CONFIG_SYS_I2C_MXC
> + setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
> +#endif
> +
> +#ifdef CONFIG_USB_EHCI_MX6
> + setup_usb();
> +#endif
> +
> +#ifdef CONFIG_FSL_QSPI
> + board_qspi_init();
> +#endif
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_CMD_BMODE
> +static const struct boot_mode board_boot_modes[] = {
> + /* 4 bit bus width */
> + {"sd1", MAKE_CFGVAL(0x42, 0x20, 0x00, 0x00)},
> + {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
> + {"qspi1", MAKE_CFGVAL(0x10, 0x00, 0x00, 0x00)},
> + {NULL, 0},
> +};
> +#endif
> +
> +int board_late_init(void)
> +{
> +#ifdef CONFIG_CMD_BMODE
> + add_board_boot_modes(board_boot_modes);
> +#endif
> +
> + return 0;
> +}
> +
> +u32 get_board_rev(void)
> +{
> + return get_cpu_rev();
> +}
> +
> +int checkboard(void)
> +{
> + puts("Board: MX6UL 14x14 EVK\n");
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_SPL_BUILD
> +#include <libfdt.h>
> +#include <spl.h>
> +#include <asm/arch/mx6-ddr.h>
> +
> +const struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
> + .dram_dqm0 = 0x00000030,
> + .dram_dqm1 = 0x00000030,
> + .dram_ras = 0x00000030,
> + .dram_cas = 0x00000030,
> + .dram_odt0 = 0x00000030,
> + .dram_odt1 = 0x00000030,
> + .dram_sdba2 = 0x00000000,
> + .dram_sdclk_0 = 0x00000008,
> + .dram_sdqs0 = 0x00000038,
> + .dram_sdqs1 = 0x00000030,
> + .dram_reset = 0x00000030,
> +};
> +
> +const struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
> + .grp_addds = 0x00000030,
> + .grp_ddrmode_ctl = 0x00020000,
> + .grp_b0ds = 0x00000030,
> + .grp_ctlds = 0x00000030,
> + .grp_b1ds = 0x00000030,
> + .grp_ddrpke = 0x00000000,
> + .grp_ddrmode = 0x00020000,
> + .grp_ddr_type = 0x000c0000,
> +};
> +
> +const struct mx6_mmdc_calibration mx6_mmcd_calib = {
> + .p0_mpwldectrl0 = 0x00070007,
> + .p0_mpdgctrl0 = 0x41490145,
> + .p0_mprddlctl = 0x40404546,
> + .p0_mpwrdlctl = 0x4040524D,
> +};
> +
> +static struct mx6_ddr3_cfg mem_ddr = {
> + .mem_speed = 800,
> + .density = 4,
> + .width = 16,
> + .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 = 0,
> + .cs_density = 20,
> + .ncs = 1,
> + .cs1_mirror = 0,
> + .rtt_wr = 2,
> + .rtt_nom = 1, /* 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) */
> + };
> +
> + mx6ul_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);
> +}
> +
> +void reset_cpu(ulong addr)
> +{
> +}
> +#endif
> diff --git a/configs/mx6ul_14x14_evk_defconfig b/configs/mx6ul_14x14_evk_defconfig
> new file mode 100644
> index 0000000..b6eefaf
> --- /dev/null
> +++ b/configs/mx6ul_14x14_evk_defconfig
> @@ -0,0 +1,4 @@
> +CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6UL"
> +CONFIG_ARM=y
> +CONFIG_TARGET_MX6UL_14X14_EVK=y
> +CONFIG_SPL=y
> diff --git a/include/configs/mx6ul_14x14_evk.h b/include/configs/mx6ul_14x14_evk.h
> new file mode 100644
> index 0000000..436b022
> --- /dev/null
> +++ b/include/configs/mx6ul_14x14_evk.h
> @@ -0,0 +1,227 @@
> +/*
> + * Copyright (C) 2015 Freescale Semiconductor, Inc.
> + *
> + * Configuration settings for the Freescale i.MX6UL 14x14 EVK board.
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +#ifndef __MX6UL_14X14_EVK_CONFIG_H
> +#define __MX6UL_14X14_EVK_CONFIG_H
> +
> +
> +#include <asm/arch/imx-regs.h>
> +#include <linux/sizes.h>
> +#include "mx6_common.h"
> +#include <asm/imx-common/gpio.h>
> +
> +/* SPL options */
> +#define CONFIG_SPL_LIBCOMMON_SUPPORT
> +#define CONFIG_SPL_MMC_SUPPORT
> +#define CONFIG_SPL_FAT_SUPPORT
> +#include "imx6_spl.h"
> +
> +#define CONFIG_MX6
> +#define CONFIG_ROM_UNIFIED_SECTIONS
> +#define CONFIG_SYS_GENERIC_BOARD
> +#define CONFIG_DISPLAY_CPUINFO
> +#define CONFIG_DISPLAY_BOARDINFO
> +
> +/* Size of malloc() pool */
> +#define CONFIG_SYS_MALLOC_LEN (16 * SZ_1M)
> +
> +#define CONFIG_BOARD_EARLY_INIT_F
> +#define CONFIG_BOARD_LATE_INIT
> +
> +#define CONFIG_MXC_UART
> +#define CONFIG_MXC_UART_BASE UART1_BASE
> +
> +#define CONFIG_CMD_FUSE
> +#ifdef CONFIG_CMD_FUSE
> +#define CONFIG_MXC_OCOTP
> +#endif
> +
> +/* MMC Configs */
> +#ifdef CONFIG_FSL_USDHC
> +#define CONFIG_SYS_FSL_ESDHC_ADDR USDHC2_BASE_ADDR
> +
> +/* NAND pin conflicts with usdhc2 */
> +#ifdef CONFIG_NAND_MXS
> +#define CONFIG_SYS_FSL_USDHC_NUM 1
> +#else
> +#define CONFIG_SYS_FSL_USDHC_NUM 2
> +#endif
> +
> +#define CONFIG_SUPPORT_EMMC_BOOT /* eMMC specific */
> +#endif
> +
> +#undef CONFIG_BOOTM_NETBSD
> +#undef CONFIG_BOOTM_PLAN9
> +#undef CONFIG_BOOTM_RTEMS
> +
> +#undef CONFIG_CMD_EXPORTENV
> +#undef CONFIG_CMD_IMPORTENV
> +
> +/* I2C configs */
> +#define CONFIG_CMD_I2C
> +#ifdef CONFIG_CMD_I2C
> +#define CONFIG_SYS_I2C
> +#define CONFIG_SYS_I2C_MXC
> +#define CONFIG_SYS_I2C_SPEED 100000
> +#endif
> +
> +#define PHYS_SDRAM_SIZE SZ_512M
> +
> +#undef CONFIG_CMD_IMLS
> +
> +#define CONFIG_SYS_MMC_IMG_LOAD_PART 1
> +
> +#define CONFIG_EXTRA_ENV_SETTINGS \
> + "script=boot.scr\0" \
> + "image=zImage\0" \
> + "console=ttymxc0\0" \
> + "fdt_high=0xffffffff\0" \
> + "initrd_high=0xffffffff\0" \
> + "fdt_file=imx6ul-14x14-evk.dtb\0" \
> + "fdt_addr=0x83000000\0" \
> + "boot_fdt=try\0" \
> + "ip_dyn=yes\0" \
> + "mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \
> + "mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \
> + "mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \
> + "mmcautodetect=yes\0" \
> + "mmcargs=setenv bootargs console=${console},${baudrate} " \
> + "root=${mmcroot}\0" \
> + "loadbootscript=" \
> + "fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
> + "bootscript=echo Running bootscript from mmc ...; " \
> + "source\0" \
> + "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
> + "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
> + "mmcboot=echo Booting from mmc ...; " \
> + "run mmcargs; " \
> + "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
> + "if run loadfdt; then " \
> + "bootz ${loadaddr} - ${fdt_addr}; " \
> + "else " \
> + "if test ${boot_fdt} = try; then " \
> + "bootz; " \
> + "else " \
> + "echo WARN: Cannot load the DT; " \
> + "fi; " \
> + "fi; " \
> + "else " \
> + "bootz; " \
> + "fi;\0" \
> + "netargs=setenv bootargs console=${console},${baudrate} " \
> + "root=/dev/nfs " \
> + "ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
> + "netboot=echo Booting from net ...; " \
> + "run netargs; " \
> + "if test ${ip_dyn} = yes; then " \
> + "setenv get_cmd dhcp; " \
> + "else " \
> + "setenv get_cmd tftp; " \
> + "fi; " \
> + "${get_cmd} ${image}; " \
> + "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
> + "if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
> + "bootz ${loadaddr} - ${fdt_addr}; " \
> + "else " \
> + "if test ${boot_fdt} = try; then " \
> + "bootz; " \
> + "else " \
> + "echo WARN: Cannot load the DT; " \
> + "fi; " \
> + "fi; " \
> + "else " \
> + "bootz; " \
> + "fi;\0"
> +
> +#define CONFIG_BOOTCOMMAND \
> + "mmc dev ${mmcdev};" \
> + "mmc dev ${mmcdev}; if mmc rescan; then " \
> + "if run loadbootscript; then " \
> + "run bootscript; " \
> + "else " \
> + "if run loadimage; then " \
> + "run mmcboot; " \
> + "else run netboot; " \
> + "fi; " \
> + "fi; " \
> + "else run netboot; fi"
> +
> +/* Miscellaneous configurable options */
> +#define CONFIG_SYS_PROMPT "=> "
> +/* Print Buffer Size */
> +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
> +
> +#define CONFIG_CMD_MEMTEST
> +#define CONFIG_SYS_MEMTEST_START 0x80000000
> +#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + 0x10000000)
> +
> +#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
> +#define CONFIG_SYS_HZ 1000
> +
> +#define CONFIG_CMDLINE_EDITING
> +#define CONFIG_STACKSIZE SZ_128K
> +
> +/* Physical Memory Map */
> +#define CONFIG_NR_DRAM_BANKS 1
> +#define PHYS_SDRAM MMDC0_ARB_BASE_ADDR
> +
> +#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
> +#define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
> +#define CONFIG_SYS_INIT_RAM_SIZE IRAM_SIZE
> +
> +#define CONFIG_SYS_INIT_SP_OFFSET \
> + (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
> +#define CONFIG_SYS_INIT_SP_ADDR \
> + (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
> +
> +/* FLASH and environment organization */
> +#define CONFIG_SYS_NO_FLASH
> +
> +#define CONFIG_ENV_SIZE SZ_8K
> +#define CONFIG_ENV_IS_IN_MMC
> +#define CONFIG_ENV_OFFSET (8 * SZ_64K)
> +#define CONFIG_SYS_MMC_ENV_DEV 1 /* USDHC2 */
> +#define CONFIG_SYS_MMC_ENV_PART 0 /* user area */
> +#define CONFIG_MMCROOT "/dev/mmcblk1p2" /* USDHC2 */
> +
> +#define CONFIG_OF_LIBFDT
> +#define CONFIG_CMD_BOOTZ
> +#define CONFIG_CMD_BMODE
> +
> +#ifndef CONFIG_SYS_DCACHE_OFF
> +#define CONFIG_CMD_CACHE
> +#endif
> +
> +#define CONFIG_FSL_QSPI
> +#ifdef CONFIG_FSL_QSPI
> +#define CONFIG_CMD_SF
> +#define CONFIG_SPI_FLASH
> +#define CONFIG_SPI_FLASH_STMICRO
> +#define CONFIG_SPI_FLASH_BAR
> +#define CONFIG_SF_DEFAULT_BUS 0
> +#define CONFIG_SF_DEFAULT_CS 0
> +#define CONFIG_SF_DEFAULT_SPEED 40000000
> +#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
> +#define FSL_QSPI_FLASH_NUM 1
> +#define FSL_QSPI_FLASH_SIZE SZ_32M
> +#endif
> +
> +/* USB Configs */
> +#define CONFIG_CMD_USB
> +#ifdef CONFIG_CMD_USB
> +#define CONFIG_USB_EHCI
> +#define CONFIG_USB_EHCI_MX6
> +#define CONFIG_USB_STORAGE
> +#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
> +#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
> +#define CONFIG_MXC_USB_FLAGS 0
> +#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
> +#endif
> +
> +#define CONFIG_IMX6_THERMAL
> +
> +#endif
>
Applied to u-boot-imx, thanks !
Best regards,
Stefano Babic
--
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DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
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