u-boot/board/ronetix/imx7-cm/imx7-cm.c
Ilko Iliev fdd2f359e4 imx: Add support for Ronetix's iMX7-CM board
Console boot log:

U-Boot SPL 2021.04-00836-ga6232e065d-dirty (Apr 16 2021 - 15:16:35 +0200)
Trying to boot from MMC1

U-Boot 2021.04-00836-ga6232e065d-dirty (Apr 16 2021 - 15:16:35 +0200)

CPU:   Freescale i.MX7D rev1.3 1000 MHz (running at 792 MHz)
CPU:   Commercial temperature grade (0C to 95C) at 44C
Reset cause: POR
Model: Ronetix iMX7-CM Board
Board: iMX7-CM
DRAM:  512 MiB
PMIC:  PFUZE3000 DEV_ID=0x30 REV_ID=0x11
MMC:   FSL_SDHC: 0, FSL_SDHC: 2
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
Net:
Warning: ethernet@30be0000 (eth0) using random MAC address - fe:be:37:01:5a:3f
eth0: ethernet@30be0000
Hit any key to stop autoboot:  0

Signed-off-by: Ilko Iliev <iliev@ronetix.at>
2021-05-02 12:46:54 +02:00

98 lines
1.9 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2021 Ronetix GmbH
*/
#include <init.h>
#include <net.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx7-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/global_data.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/io.h>
#include <common.h>
#include <i2c.h>
#include <miiphy.h>
#include <power/pmic.h>
#include <power/pfuze3000_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
int power_init_board(void)
{
struct udevice *dev;
int ret;
unsigned int reg, rev;
ret = pmic_get("pmic@8", &dev);
if (ret == -ENODEV) {
puts("No pmic\n");
return 0;
}
if (ret != 0)
return ret;
reg = pmic_reg_read(dev, PFUZE3000_DEVICEID);
rev = pmic_reg_read(dev, PFUZE3000_REVID);
printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev);
/* disable Low Power Mode during standby mode */
reg = pmic_reg_read(dev, PFUZE3000_LDOGCTL);
reg |= 0x1;
pmic_reg_write(dev, PFUZE3000_LDOGCTL, reg);
/* SW1A/1B mode set to APS/APS */
reg = 0x8;
pmic_reg_write(dev, PFUZE3000_SW1AMODE, reg);
pmic_reg_write(dev, PFUZE3000_SW1BMODE, reg);
/* SW1A/1B standby voltage set to 1.025V */
reg = 0xd;
pmic_reg_write(dev, PFUZE3000_SW1ASTBY, reg);
pmic_reg_write(dev, PFUZE3000_SW1BSTBY, reg);
/* decrease SW1B normal voltage to 0.975V */
reg = pmic_reg_read(dev, PFUZE3000_SW1BVOLT);
reg &= ~0x1f;
reg |= PFUZE3000_SW1AB_SETP(975);
pmic_reg_write(dev, PFUZE3000_SW1BVOLT, reg);
return 0;
}
static int setup_fec(void)
{
return set_clk_enet(ENET_125MHZ);
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
setup_fec();
return 0;
}
int board_late_init(void)
{
return 0;
}
int checkboard(void)
{
puts("Board: iMX7-CM\n");
return 0;
}