mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-20 18:23:08 +00:00
401d1c4f5d
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2020 Toradex
|
|
*/
|
|
|
|
#include <dm.h>
|
|
#include <i2c_eeprom.h>
|
|
#include <asm/global_data.h>
|
|
#include <linux/errno.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static int get_tdx_eeprom(u32 eeprom_id, struct udevice **devp)
|
|
{
|
|
int ret = 0;
|
|
int node;
|
|
ofnode eeprom;
|
|
char eeprom_str[16];
|
|
const char *path;
|
|
|
|
if (!gd->fdt_blob) {
|
|
printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
|
|
return -EFAULT;
|
|
}
|
|
|
|
node = fdt_path_offset(gd->fdt_blob, "/aliases");
|
|
if (node < 0)
|
|
return -ENODEV;
|
|
|
|
sprintf(eeprom_str, "eeprom%d", eeprom_id);
|
|
|
|
path = fdt_getprop(gd->fdt_blob, node, eeprom_str, NULL);
|
|
if (!path) {
|
|
printf("%s: no alias for %s\n", __func__, eeprom_str);
|
|
return -ENODEV;
|
|
}
|
|
|
|
eeprom = ofnode_path(path);
|
|
if (!ofnode_valid(eeprom)) {
|
|
printf("%s: invalid hardware path to EEPROM\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, devp);
|
|
if (ret) {
|
|
printf("%s: cannot find EEPROM by node\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int read_tdx_eeprom_data(u32 eeprom_id, int offset, u8 *buf,
|
|
int size)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
ret = get_tdx_eeprom(eeprom_id, &dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i2c_eeprom_read(dev, 0x0, buf, size);
|
|
if (ret) {
|
|
printf("%s: error reading data from EEPROM id: %d!, ret = %d\n",
|
|
__func__, eeprom_id, ret);
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int write_tdx_eeprom_data(u32 eeprom_id, int offset, u8 *buf,
|
|
int size)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
ret = get_tdx_eeprom(eeprom_id, &dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i2c_eeprom_write(dev, 0x0, buf, size);
|
|
if (ret) {
|
|
printf("%s: error writing data to EEPROM id: %d, ret = %d\n",
|
|
__func__, eeprom_id, ret);
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|