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>
92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2020 Toradex
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*/
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#include <dm.h>
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#include <i2c_eeprom.h>
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#include <asm/global_data.h>
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#include <linux/errno.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int get_tdx_eeprom(u32 eeprom_id, struct udevice **devp)
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{
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int ret = 0;
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int node;
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ofnode eeprom;
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char eeprom_str[16];
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const char *path;
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if (!gd->fdt_blob) {
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printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
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return -EFAULT;
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}
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node = fdt_path_offset(gd->fdt_blob, "/aliases");
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if (node < 0)
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return -ENODEV;
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sprintf(eeprom_str, "eeprom%d", eeprom_id);
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path = fdt_getprop(gd->fdt_blob, node, eeprom_str, NULL);
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if (!path) {
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printf("%s: no alias for %s\n", __func__, eeprom_str);
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return -ENODEV;
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}
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eeprom = ofnode_path(path);
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if (!ofnode_valid(eeprom)) {
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printf("%s: invalid hardware path to EEPROM\n", __func__);
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return -ENODEV;
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}
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ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, devp);
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if (ret) {
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printf("%s: cannot find EEPROM by node\n", __func__);
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return ret;
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}
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return ret;
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}
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int read_tdx_eeprom_data(u32 eeprom_id, int offset, u8 *buf,
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int size)
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{
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struct udevice *dev;
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int ret;
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ret = get_tdx_eeprom(eeprom_id, &dev);
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if (ret)
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return ret;
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ret = i2c_eeprom_read(dev, 0x0, buf, size);
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if (ret) {
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printf("%s: error reading data from EEPROM id: %d!, ret = %d\n",
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__func__, eeprom_id, ret);
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return ret;
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}
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return ret;
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}
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int write_tdx_eeprom_data(u32 eeprom_id, int offset, u8 *buf,
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int size)
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{
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struct udevice *dev;
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int ret;
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ret = get_tdx_eeprom(eeprom_id, &dev);
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if (ret)
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return ret;
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ret = i2c_eeprom_write(dev, 0x0, buf, size);
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if (ret) {
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printf("%s: error writing data to EEPROM id: %d, ret = %d\n",
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__func__, eeprom_id, ret);
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return ret;
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}
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return ret;
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}
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