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/*
* Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/clock.h>
#include <asm/errno.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <miiphy.h>
#include <netdev.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)
int dram_init(void)
{
#if defined(CONFIG_MX6DL) && !defined(CONFIG_MX6DL_LPDDR2) && \
defined(CONFIG_DDR_32BIT)
gd->ram_size = ((phys_size_t)CONFIG_DDR_MB * 1024 * 1024) / 2;
#else
gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024;
#endif
return 0;
}
iomux_v3_cfg_t const uart4_pads[] = {
MX6_PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};
iomux_v3_cfg_t const usdhc3_pads[] = {
MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_NANDF_CS0__GPIO6_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
};
iomux_v3_cfg_t const usdhc4_pads[] = {
MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
iomux_v3_cfg_t const enet_pads[] = {
MX6_PAD_KEY_COL1__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_KEY_COL2__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
}
static void setup_iomux_enet(void)
{
imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
}
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg usdhc_cfg[2] = {
{USDHC3_BASE_ADDR},
{USDHC4_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret;
if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
gpio_direction_input(IMX_GPIO_NR(6, 11));
ret = !gpio_get_value(IMX_GPIO_NR(6, 11));
} else /* Don't have the CD GPIO pin on board */
ret = 1;
return ret;
}
int board_mmc_init(bd_t *bis)
{
s32 status = 0;
u32 index = 0;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
switch (index) {
case 0:
imx_iomux_v3_setup_multiple_pads(
usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
break;
case 1:
imx_iomux_v3_setup_multiple_pads(
usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
break;
default:
printf("Warning: you configured more USDHC controllers"
"(%d) then supported by the board (%d)\n",
index + 1, CONFIG_SYS_FSL_USDHC_NUM);
return status;
}
status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
}
return status;
}
#endif
#define MII_MMD_ACCESS_CTRL_REG 0xd
#define MII_MMD_ACCESS_ADDR_DATA_REG 0xe
#define MII_DBG_PORT_REG 0x1d
#define MII_DBG_PORT2_REG 0x1e
int fecmxc_mii_postcall(int phy)
{
unsigned short val;
/*
* Due to the i.MX6Q Armadillo2 board HW design,there is
* no 125Mhz clock input from SOC. In order to use RGMII,
* We need enable AR8031 ouput a 125MHz clk from CLK_25M
*/
miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x7);
miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, 0x8016);
miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x4007);
miiphy_read("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, &val);
val &= 0xffe3;
val |= 0x18;
miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, val);
/* For the RGMII phy, we need enable tx clock delay */
miiphy_write("FEC", phy, MII_DBG_PORT_REG, 0x5);
miiphy_read("FEC", phy, MII_DBG_PORT2_REG, &val);
val |= 0x0100;
miiphy_write("FEC", phy, MII_DBG_PORT2_REG, val);
miiphy_write("FEC", phy, MII_BMCR, 0xa100);
return 0;
}
int board_eth_init(bd_t *bis)
{
struct eth_device *dev;
int ret = cpu_eth_init(bis);
if (ret)
return ret;
dev = eth_get_dev_by_name("FEC");
if (!dev) {
printf("FEC MXC: Unable to get FEC device entry\n");
return -EINVAL;
}
ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
if (ret) {
printf("FEC MXC: Unable to register FEC mii postcall\n");
return ret;
}
return 0;
}
int board_early_init_f(void)
{
setup_iomux_uart();
setup_iomux_enet();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
return 0;
}
int checkboard(void)
{
#ifdef CONFIG_MX6DL
puts("Board: MX6DL-Armadillo2\n");
#else
puts("Board: MX6Q-Armadillo2\n");
#endif
return 0;
}
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