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/*
* Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
* Copyright (C) 2016 Grinn
*
* 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/io.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <linux/sizes.h>
#include <linux/fb.h>
#include <mach/litesom.h>
#include <miiphy.h>
#include <mmc.h>
#include <netdev.h>
#include <spl.h>
#include <usb.h>
#include <usb/ehci-ci.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 ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
PAD_CTL_SPEED_HIGH | \
PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST)
#define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE)
#define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
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 sd_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),
/* CD */
MX6_PAD_UART1_RTS_B__GPIO1_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
#ifdef CONFIG_FEC_MXC
static iomux_v3_cfg_t const fec1_pads[] = {
MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
static void setup_iomux_fec(void)
{
imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
}
#endif
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}
#ifdef CONFIG_FSL_ESDHC
static struct fsl_esdhc_cfg sd_cfg = {USDHC1_BASE_ADDR, 0, 4};
#define SD_CD_GPIO IMX_GPIO_NR(1, 19)
static int mmc_get_env_devno(void)
{
u32 soc_sbmr = readl(SRC_BASE_ADDR + 0x4);
int dev_no;
u32 bootsel;
bootsel = (soc_sbmr & 0x000000FF) >> 6;
/* If not boot from sd/mmc, use default value */
if (bootsel != 1)
return CONFIG_SYS_MMC_ENV_DEV;
/* BOOT_CFG2[3] and BOOT_CFG2[4] */
dev_no = (soc_sbmr & 0x00001800) >> 11;
return dev_no;
}
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(SD_CD_GPIO);
break;
case USDHC2_BASE_ADDR:
ret = 1;
break;
}
return ret;
}
int board_mmc_init(bd_t *bis)
{
int ret;
/* SD */
imx_iomux_v3_setup_multiple_pads(sd_pads, ARRAY_SIZE(sd_pads));
gpio_direction_input(SD_CD_GPIO);
sd_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
ret = fsl_esdhc_initialize(bis, &sd_cfg);
if (ret) {
printf("Warning: failed to initialize mmc dev 0 (SD)\n");
return ret;
}
return litesom_mmc_init(bis);
}
static int check_mmc_autodetect(void)
{
char *autodetect_str = getenv("mmcautodetect");
if ((autodetect_str != NULL) &&
(strcmp(autodetect_str, "yes") == 0)) {
return 1;
}
return 0;
}
void board_late_mmc_init(void)
{
char cmd[32];
char mmcblk[32];
u32 dev_no = mmc_get_env_devno();
if (!check_mmc_autodetect())
return;
setenv_ulong("mmcdev", dev_no);
/* Set mmcblk env */
sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw",
dev_no);
setenv("mmcroot", mmcblk);
sprintf(cmd, "mmc dev %d", dev_no);
run_command(cmd, 0);
}
#endif
#ifdef CONFIG_FEC_MXC
int board_eth_init(bd_t *bis)
{
setup_iomux_fec();
return fecmxc_initialize(bis);
}
static int setup_fec(void)
{
struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
int ret;
/* Use 50M anatop loopback REF_CLK1 for ENET1, clear gpr1[13],
set gpr1[17]*/
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
ret = enable_fec_anatop_clock(0, ENET_50MHZ);
if (ret)
return ret;
enable_enet_clk(1);
return 0;
}
#endif
#ifdef CONFIG_USB_EHCI_MX6
int board_usb_phy_mode(int port)
{
return USB_INIT_HOST;
}
#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;
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
return 0;
}
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
{"sd", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
{"emmc", MAKE_CFGVAL(0x60, 0x48, 0x00, 0x00)},
{NULL, 0},
};
#endif
int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
#ifdef CONFIG_ENV_IS_IN_MMC
board_late_mmc_init();
#endif
return 0;
}
int checkboard(void)
{
puts("Board: Grinn liteBoard\n");
return 0;
}
#ifdef CONFIG_SPL_BUILD
void board_boot_order(u32 *spl_boot_list)
{
struct src *psrc = (struct src *)SRC_BASE_ADDR;
unsigned gpr10_boot = readl(&psrc->gpr10) & (1 << 28);
unsigned reg = gpr10_boot ? readl(&psrc->gpr9) : readl(&psrc->sbmr1);
unsigned port = (reg >> 11) & 0x1;
if (port == 0) {
spl_boot_list[0] = BOOT_DEVICE_MMC1;
spl_boot_list[1] = BOOT_DEVICE_MMC2;
} else {
spl_boot_list[0] = BOOT_DEVICE_MMC2;
spl_boot_list[1] = BOOT_DEVICE_MMC1;
}
}
void board_init_f(ulong dummy)
{
litesom_init_f();
}
#endif
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