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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2013-2019
* NVIDIA Corporation <www.nvidia.com>
*/
#include <common.h>
#include <env.h>
#include <fdtdec.h>
#include <i2c.h>
#include <log.h>
#include <net.h>
#include <linux/libfdt.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pinmux.h>
#include <asm/arch-tegra/cboot.h>
#include "../p2571/max77620_init.h"
void pin_mux_mmc(void)
{
struct udevice *dev;
uchar val;
int ret;
/* Turn on MAX77620 LDO2 to 3.3V for SD card power */
debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
if (ret) {
printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
return;
}
/* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
val = 0xF2;
ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
/* Disable LDO4 discharge */
ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
if (ret) {
printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
} else {
val &= ~BIT(1); /* ADE */
ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
}
/* Set MBLPD */
ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
if (ret) {
printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
} else {
val |= BIT(6); /* MBLPD */
ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
}
}
#ifdef CONFIG_PCI_TEGRA
int tegra_pcie_board_init(void)
{
struct udevice *dev;
uchar val;
int ret;
/* Turn on MAX77620 LDO1 to 1.05V for PEX power */
debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__);
ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
if (ret) {
printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
return -1;
}
/* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
val = 0xCA;
ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
return 0;
}
#endif /* PCI */
static void ft_mac_address_setup(void *fdt)
{
const void *cboot_fdt = (const void *)cboot_boot_x0;
uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
const char *path;
int offset, err;
err = cboot_get_ethaddr(cboot_fdt, local_mac);
if (err < 0)
memset(local_mac, 0, ETH_ALEN);
path = fdt_get_alias(fdt, "ethernet");
if (!path)
return;
debug("ethernet alias found: %s\n", path);
offset = fdt_path_offset(fdt, path);
if (offset < 0) {
printf("ethernet alias points to absent node %s\n", path);
return;
}
if (is_valid_ethaddr(local_mac)) {
err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
ETH_ALEN);
if (!err)
debug("Local MAC address set: %pM\n", local_mac);
}
if (eth_env_get_enetaddr("ethaddr", mac)) {
if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
err = fdt_setprop(fdt, offset, "mac-address", mac,
ETH_ALEN);
if (!err)
debug("MAC address set: %pM\n", mac);
}
}
}
static int ft_copy_carveout(void *dst, const void *src, const char *node)
{
struct fdt_memory fb;
int err;
err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
if (err < 0) {
if (err != -FDT_ERR_NOTFOUND)
printf("failed to get carveout for %s: %d\n", node,
err);
return err;
}
err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
&fb);
if (err < 0) {
printf("failed to set carveout for %s: %d\n", node, err);
return err;
}
return 0;
}
static void ft_carveout_setup(void *fdt)
{
const void *cboot_fdt = (const void *)cboot_boot_x0;
static const char * const nodes[] = {
"/host1x@50000000/dc@54200000",
"/host1x@50000000/dc@54240000",
};
unsigned int i;
int err;
for (i = 0; i < ARRAY_SIZE(nodes); i++) {
err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
if (err < 0) {
if (err != -FDT_ERR_NOTFOUND)
printf("failed to copy carveout for %s: %d\n",
nodes[i], err);
continue;
}
}
}
int ft_board_setup(void *fdt, bd_t *bd)
{
ft_mac_address_setup(fdt);
ft_carveout_setup(fdt);
return 0;
}
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