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/*
* Copyright (C) 2016 Amarula Solutions B.V.
* Copyright (C) 2016 Engicam S.r.l.
* Author: Jagan Teki <jagan@amarulasolutions.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mmc.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <linux/sizes.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/iomux-v3.h>
#include "../common/board.h"
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_ENV_IS_IN_MMC
int board_mmc_get_env_dev(int devno)
{
return devno;
}
#endif
#ifdef CONFIG_SPL_BUILD
#include <spl.h>
/* MMC board initialization is needed till adding DM support in SPL */
#if defined(CONFIG_FSL_ESDHC) && !defined(CONFIG_DM_MMC)
#include <mmc.h>
#include <fsl_esdhc.h>
#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_HIGH | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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)),
};
static iomux_v3_cfg_t const usdhc4_pads[] = {
IOMUX_PADS(PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
};
struct fsl_esdhc_cfg usdhc_cfg[2] = {
{USDHC3_BASE_ADDR, 1, 4},
{USDHC4_BASE_ADDR, 1, 8},
};
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 USDHC3_BASE_ADDR:
case USDHC4_BASE_ADDR:
ret = 1;
break;
}
return ret;
}
int board_mmc_init(bd_t *bis)
{
int i, ret;
/*
* According to the board_mmc_init() the following map is done:
* (U-boot device node) (Physical Port)
* mmc0 USDHC3
* mmc1 USDHC4
*/
for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
switch (i) {
case 0:
SETUP_IOMUX_PADS(usdhc3_pads);
usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
break;
case 1:
SETUP_IOMUX_PADS(usdhc4_pads);
usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
break;
default:
printf("Warning - USDHC%d controller not supporting\n",
i + 1);
return 0;
}
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
if (ret) {
printf("Warning: failed to initialize mmc dev %d\n", i);
return ret;
}
}
return 0;
}
#ifdef CONFIG_ENV_IS_IN_MMC
void board_boot_order(u32 *spl_boot_list)
{
u32 bmode = imx6_src_get_boot_mode();
u8 boot_dev = BOOT_DEVICE_MMC1;
switch ((bmode & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
case IMX6_BMODE_SD:
case IMX6_BMODE_ESD:
/* SD/eSD - BOOT_DEVICE_MMC1 */
break;
case IMX6_BMODE_MMC:
case IMX6_BMODE_EMMC:
/* MMC/eMMC */
boot_dev = BOOT_DEVICE_MMC2;
break;
default:
/* Default - BOOT_DEVICE_MMC1 */
printf("Wrong board boot order\n");
break;
}
spl_boot_list[0] = boot_dev;
}
#endif
#endif
#endif /* CONFIG_SPL_BUILD */
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