[U-Boot] [PATCH 21/21] arm: imx: add i.MX6ULL 14x14 EVK board support

[Jagan Teki]

On Thu, Aug 11, 2016 at 11:32 AM, Peng Fan <van.freenix at gmail.com> wrote:
> Add i.MX6ULL EVK board support:
> Add device tree file, which is copied from NXP Linux.
> Enabled DM_MMC, DM_GPIO, DM_I2C, DM_SPI, PINCTRL, DM_REGULATOR.
> The uart iomux settings are still keeped in board file.
>
> Boot Log:
> U-Boot 2016.09-rc1-00366-gbb419ef-dirty (Aug 11 2016 - 13:08:58 +0800)
>
> CPU:   Freescale i.MX6ULL rev1.0 at 396MHz
> CPU:   Commercial temperature grade (0C to 95C) at 15C
> Reset cause: POR
> Model: Freescale i.MX6 ULL 14x14 EVK Board
> Board: MX6ULL 14x14 EVK
> DRAM:  512 MiB
> MMC:   initialized IMX pinctrl driver
> FSL_SDHC: 0, FSL_SDHC: 1

<snip>

> diff --git a/board/freescale/mx6ullevk/mx6ullevk.c b/board/freescale/mx6ullevk/mx6ullevk.c
> new file mode 100644
> index 0000000..489bf21
> --- /dev/null
> +++ b/board/freescale/mx6ullevk/mx6ullevk.c
> @@ -0,0 +1,99 @@
> +/*
> + * Copyright (C) 2016 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/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/io.h>
> +#include <common.h>
> +#include <fsl_esdhc.h>
> +#include <linux/sizes.h>
> +#include <mmc.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)
> +
> +int dram_init(void)
> +{
> +       gd->ram_size = imx_ddr_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 void setup_iomux_uart(void)
> +{
> +       imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
> +}
> +
> +int board_mmc_get_env_dev(int devno)
> +{
> +       return devno;
> +}
> +
> +int mmc_map_to_kernel_blk(int devno)
> +{
> +       return devno;
> +}
> +
> +int board_early_init_f(void)
> +{
> +       setup_iomux_uart();

Don't we need iomux settings for sdhc? I guess pinctrl for SD not
supporting now.

thanks!
-- 
Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.