u-boot/board/liebherr/xea/xea.c
Lukasz Majewski 010e58d448 imx: Add support for i.MX28 based XEA board
This patch introduces support for i.MX28 based XEA board.

This board supports DM/DTS in U-Boot proper as well as DM aware drivers
in SPL (u-boot.sb) by using OF_PLATDATA.
More detailed information regarding usage of it can be found in
./board/liebherr/xea/README file.

U-Boot SPL 2019.10-rc1-00233-g6aa549f05c (Aug 12 2019 - 09:23:36 +0200)
Trying to boot from MMC1
MMC0: Command 8 timeout (status 0xf0344020)
mmc_load_image_raw_sector: mmc block read error

U-Boot 2019.10-rc1-00233-g6aa549f05c (Aug 12 2019 - 09:23:36 +0200)

CPU:   Freescale i.MX28 rev1.2 at 454 MHz
BOOT:  SSP SPI #3, master, 3V3 NOR
Model: Liebherr (LWE) XEA i.MX28 Board
DRAM:  128 MiB
MMC:   MXS MMC: 0
Loading Environment from SPI Flash... SF: Detected n25q128a13 with page size 256 Bytes, erase size 64 KiB, total 16 MiB
OK
In:    serial
Out:   serial
Err:   serial
Net:
Warning: ethernet@800f0000 (eth0) using random MAC address - ce:e1:9e:46:f3:a2
eth0: ethernet@800f0000
Hit any key to stop autoboot:  0

Signed-off-by: Lukasz Majewski <lukma@denx.de>
2020-01-07 10:26:56 +01:00

153 lines
2.9 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* XEA iMX28 board
*
* Copyright (C) 2019 DENX Software Engineering
* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
*
* Copyright (C) 2018 DENX Software Engineering
* Måns Rullgård, DENX Software Engineering, mans@mansr.com
*
* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
*
*/
#include <common.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux-mx28.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <linux/mii.h>
#include <miiphy.h>
#include <netdev.h>
#include <errno.h>
#include <usb.h>
#include <serial.h>
#ifdef CONFIG_SPL_BUILD
#include <spl.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
/*
* Functions
*/
static void init_clocks(void)
{
/* IO0 clock at 480MHz */
mxs_set_ioclk(MXC_IOCLK0, 480000);
/* IO1 clock at 480MHz */
mxs_set_ioclk(MXC_IOCLK1, 480000);
/* SSP0 clock at 96MHz */
mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
/* SSP2 clock at 160MHz */
mxs_set_sspclk(MXC_SSPCLK2, 160000, 0);
/* SSP3 clock at 96MHz */
mxs_set_sspclk(MXC_SSPCLK3, 96000, 0);
}
#ifdef CONFIG_SPL_BUILD
void board_init_f(ulong arg)
{
init_clocks();
preloader_console_init();
}
static int boot_tiva0, boot_tiva1;
/* Check if TIVAs request booting via U-Boot proper */
void spl_board_init(void)
{
struct gpio_desc btiva0, btiva1;
int ret;
ret = dm_gpio_lookup_name("GPIO0_23", &btiva0);
if (ret)
printf("Cannot get GPIO0_23\n");
ret = dm_gpio_lookup_name("GPIO0_25", &btiva1);
if (ret)
printf("Cannot get GPIO0_25\n");
ret = dm_gpio_request(&btiva0, "boot-tiva0");
if (ret)
printf("Cannot request GPIO0_23\n");
ret = dm_gpio_request(&btiva1, "boot-tiva1");
if (ret)
printf("Cannot request GPIO0_25\n");
dm_gpio_set_dir_flags(&btiva0, GPIOD_IS_IN);
dm_gpio_set_dir_flags(&btiva1, GPIOD_IS_IN);
udelay(1000);
boot_tiva0 = dm_gpio_get_value(&btiva0);
boot_tiva1 = dm_gpio_get_value(&btiva1);
}
void board_boot_order(u32 *spl_boot_list)
{
spl_boot_list[0] = BOOT_DEVICE_MMC1;
spl_boot_list[1] = BOOT_DEVICE_SPI;
}
int spl_start_uboot(void)
{
/* break into full u-boot on 'c' */
if (serial_tstc() && serial_getc() == 'c')
return 1;
debug("%s: btiva0: %d btiva1: %d\n", __func__, boot_tiva0, boot_tiva1);
return !boot_tiva0 || !boot_tiva1;
}
#else
int board_early_init_f(void)
{
init_clocks();
return 0;
}
int board_init(void)
{
struct gpio_desc phy_rst;
int ret;
/* Address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
cpu_eth_init(NULL);
/* PHY INT#/PWDN# */
ret = dm_gpio_lookup_name("GPIO4_13", &phy_rst);
if (ret) {
printf("Cannot get GPIO4_13\n");
return ret;
}
ret = dm_gpio_request(&phy_rst, "phy-rst");
if (ret) {
printf("Cannot request GPIO4_13\n");
return ret;
}
dm_gpio_set_dir_flags(&phy_rst, GPIOD_IS_IN);
udelay(1000);
return 0;
}
int dram_init(void)
{
return mxs_dram_init();
}
#endif /* CONFIG_SPL_BUILD */