u-boot/board/out4/o4-imx6ull-nano/o4-imx6ull-nano.c
Oleh Kravchenko 1180baec98 Add EV-iMX280-NANO-X-MB board
A simple prototyping board with one microSD port, one Ethernet port,
2 USB ports, I2C, SPI, GPIO, and UART interfaces.

Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Cc: Stefano Babic <sbabic@denx.de>
2021-06-09 13:32:49 +02:00

88 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
// Copyright (C) 2021 Oleh Kravchenko <oleg@kaa.org.ua>
#include <asm/arch-mx6/clock.h>
#include <asm/arch/sys_proto.h>
#include <asm/global_data.h>
#include <asm/mach-imx/boot_mode.h>
#include <common.h>
#include <env.h>
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
int board_early_init_f(void)
{
return 0;
}
static int setup_fec_clock(void)
{
if (IS_ENABLED(CONFIG_FEC_MXC) && !IS_ENABLED(CONFIG_CLK_IMX6Q)) {
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;
if (!IS_ENABLED(CONFIG_EV_IMX280_NANO_X_MB)) {
/*
* Use 50M anatop loopback REF_CLK2 for ENET2,
* clear gpr1[14], set gpr1[18].
*/
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
ret = enable_fec_anatop_clock(1, ENET_50MHZ);
if (ret)
return ret;
}
enable_enet_clk(1);
}
return 0;
}
int board_init(void)
{
/* Address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
return setup_fec_clock();
}
int board_late_init(void)
{
if (IS_ENABLED(CONFIG_CMD_BMODE))
add_board_boot_modes(NULL);
if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) {
const char *model;
model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
if (model)
env_set("board_name", model);
}
if (is_boot_from_usb()) {
env_set("bootcmd", "run bootcmd_mfg");
env_set("bootdelay", "0");
}
return 0;
}