mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
98d0122924
Add SATA support on uDoo Board. Signed-off-by: Giuseppe Pagano <giuseppe.pagano@seco.com> CC: Stefano Babic <sbabic@denx.de> CC: Fabio Estevam <fabio.estevam@freescale.com>
255 lines
7.2 KiB
C
255 lines
7.2 KiB
C
/*
|
|
* Copyright (C) 2013 Freescale Semiconductor, Inc.
|
|
*
|
|
* Author: Fabio Estevam <fabio.estevam@freescale.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/imx-regs.h>
|
|
#include <asm/arch/iomux.h>
|
|
#include <malloc.h>
|
|
#include <asm/arch/mx6-pins.h>
|
|
#include <asm/errno.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/imx-common/iomux-v3.h>
|
|
#include <asm/imx-common/sata.h>
|
|
#include <mmc.h>
|
|
#include <fsl_esdhc.h>
|
|
#include <asm/arch/crm_regs.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <micrel.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 ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
|
|
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | 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 WDT_EN IMX_GPIO_NR(5, 4)
|
|
#define WDT_TRG IMX_GPIO_NR(3, 19)
|
|
|
|
int dram_init(void)
|
|
{
|
|
gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static iomux_v3_cfg_t const uart2_pads[] = {
|
|
MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
|
|
MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
|
|
};
|
|
|
|
static 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),
|
|
};
|
|
|
|
static iomux_v3_cfg_t const wdog_pads[] = {
|
|
MX6_PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
MX6_PAD_EIM_D19__GPIO3_IO19,
|
|
};
|
|
|
|
int mx6_rgmii_rework(struct phy_device *phydev)
|
|
{
|
|
/*
|
|
* Bug: Apparently uDoo does not works with Gigabit switches...
|
|
* Limiting speed to 10/100Mbps, and setting master mode, seems to
|
|
* be the only way to have a successfull PHY auto negotiation.
|
|
* How to fix: Understand why Linux kernel do not have this issue.
|
|
*/
|
|
phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, 0x1c00);
|
|
|
|
/* control data pad skew - devaddr = 0x02, register = 0x04 */
|
|
ksz9031_phy_extended_write(phydev, 0x02,
|
|
MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
|
|
MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
|
|
/* rx data pad skew - devaddr = 0x02, register = 0x05 */
|
|
ksz9031_phy_extended_write(phydev, 0x02,
|
|
MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
|
|
MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
|
|
/* tx data pad skew - devaddr = 0x02, register = 0x05 */
|
|
ksz9031_phy_extended_write(phydev, 0x02,
|
|
MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
|
|
MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
|
|
/* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
|
|
ksz9031_phy_extended_write(phydev, 0x02,
|
|
MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
|
|
MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
|
|
return 0;
|
|
}
|
|
|
|
static iomux_v3_cfg_t const enet_pads1[] = {
|
|
MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
|
|
MX6_PAD_ENET_MDC__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),
|
|
/* RGMII reset */
|
|
MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
/* Ethernet power supply */
|
|
MX6_PAD_EIM_EB3__GPIO2_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
/* pin 32 - 1 - (MODE0) all */
|
|
MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
/* pin 31 - 1 - (MODE1) all */
|
|
MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
/* pin 28 - 1 - (MODE2) all */
|
|
MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
/* pin 27 - 1 - (MODE3) all */
|
|
MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
/* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
|
|
MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
};
|
|
|
|
static iomux_v3_cfg_t const enet_pads2[] = {
|
|
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_enet(void)
|
|
{
|
|
imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
|
|
udelay(20);
|
|
gpio_direction_output(IMX_GPIO_NR(2, 31), 1); /* Power supply on */
|
|
|
|
gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* assert PHY rst */
|
|
|
|
gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
|
|
gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
|
|
gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
|
|
gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
|
|
gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
|
|
udelay(1000);
|
|
|
|
gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* deassert PHY rst */
|
|
|
|
/* Need 100ms delay to exit from reset. */
|
|
udelay(1000 * 100);
|
|
|
|
gpio_free(IMX_GPIO_NR(6, 24));
|
|
gpio_free(IMX_GPIO_NR(6, 25));
|
|
gpio_free(IMX_GPIO_NR(6, 27));
|
|
gpio_free(IMX_GPIO_NR(6, 28));
|
|
gpio_free(IMX_GPIO_NR(6, 29));
|
|
|
|
imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
|
|
}
|
|
|
|
static void setup_iomux_uart(void)
|
|
{
|
|
imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
|
|
}
|
|
|
|
static void setup_iomux_wdog(void)
|
|
{
|
|
imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
|
|
gpio_direction_output(WDT_TRG, 0);
|
|
gpio_direction_output(WDT_EN, 1);
|
|
gpio_direction_input(WDT_TRG);
|
|
}
|
|
|
|
static struct fsl_esdhc_cfg usdhc_cfg = { USDHC3_BASE_ADDR };
|
|
|
|
int board_mmc_getcd(struct mmc *mmc)
|
|
{
|
|
return 1; /* Always present */
|
|
}
|
|
|
|
int board_eth_init(bd_t *bis)
|
|
{
|
|
uint32_t base = IMX_FEC_BASE;
|
|
struct mii_dev *bus = NULL;
|
|
struct phy_device *phydev = NULL;
|
|
int ret;
|
|
|
|
setup_iomux_enet();
|
|
|
|
#ifdef CONFIG_FEC_MXC
|
|
bus = fec_get_miibus(base, -1);
|
|
if (!bus)
|
|
return 0;
|
|
/* scan phy 4,5,6,7 */
|
|
phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
|
|
|
|
if (!phydev) {
|
|
free(bus);
|
|
return 0;
|
|
}
|
|
printf("using phy at %d\n", phydev->addr);
|
|
ret = fec_probe(bis, -1, base, bus, phydev);
|
|
if (ret) {
|
|
printf("FEC MXC: %s:failed\n", __func__);
|
|
free(phydev);
|
|
free(bus);
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int board_mmc_init(bd_t *bis)
|
|
{
|
|
imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
|
|
usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
|
|
usdhc_cfg.max_bus_width = 4;
|
|
|
|
return fsl_esdhc_initialize(bis, &usdhc_cfg);
|
|
}
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
setup_iomux_wdog();
|
|
setup_iomux_uart();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_phy_config(struct phy_device *phydev)
|
|
{
|
|
mx6_rgmii_rework(phydev);
|
|
if (phydev->drv->config)
|
|
phydev->drv->config(phydev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
/* address of boot parameters */
|
|
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
|
|
|
|
#ifdef CONFIG_CMD_SATA
|
|
setup_sata();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int checkboard(void)
|
|
{
|
|
puts("Board: Udoo\n");
|
|
|
|
return 0;
|
|
}
|