mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-25 12:33:41 +00:00
fc274a5932
OF_BOARD and OF_SEPARATE can use board specific board_fdt_blob_setup(). OF_BOARD option is mostly used for picking up DTB from certain location. OF_SEPARATE option is used when DTB is appended after u-boot binary. This board specific function is aligned with current version in lib/fdtdec.c with checking CONFIG_XILINX_OF_BOARD_DTB_ADDR address first. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2014 - 2019 Xilinx, Inc.
|
|
* Michal Simek <michal.simek@xilinx.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/sections.h>
|
|
#include <dm/uclass.h>
|
|
#include <i2c.h>
|
|
|
|
int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
#if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
|
|
struct udevice *dev;
|
|
ofnode eeprom;
|
|
|
|
eeprom = ofnode_get_chosen_node("xlnx,eeprom");
|
|
if (!ofnode_valid(eeprom))
|
|
return -ENODEV;
|
|
|
|
debug("%s: Path to EEPROM %s\n", __func__,
|
|
ofnode_get_chosen_prop("xlnx,eeprom"));
|
|
|
|
ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6);
|
|
if (ret)
|
|
debug("%s: I2C EEPROM MAC address read failed\n", __func__);
|
|
else
|
|
debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
|
|
void *board_fdt_blob_setup(void)
|
|
{
|
|
static void *fdt_blob = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR;
|
|
|
|
if (fdt_magic(fdt_blob) == FDT_MAGIC)
|
|
return fdt_blob;
|
|
|
|
debug("DTB is not passed via %p\n", fdt_blob);
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
/* FDT is at end of BSS unless it is in a different memory region */
|
|
if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS))
|
|
fdt_blob = (ulong *)&_image_binary_end;
|
|
else
|
|
fdt_blob = (ulong *)&__bss_end;
|
|
#else
|
|
/* FDT is at end of image */
|
|
fdt_blob = (ulong *)&_end;
|
|
#endif
|
|
|
|
if (fdt_magic(fdt_blob) == FDT_MAGIC)
|
|
return fdt_blob;
|
|
|
|
debug("DTB is also not passed via %p\n", fdt_blob);
|
|
|
|
return NULL;
|
|
}
|
|
#endif
|