diff options
| author | Zong Li <zong.li@sifive.com> | 2021-06-30 18:23:48 +0300 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2021-07-06 15:24:25 +0300 |
| commit | 05e254862f201ae93fdf1f2e4fc0de203d25d325 (patch) | |
| tree | 737e407e044b851a3e8d5b751615959b16235d95 /arch | |
| parent | 564d630e2653901f1f115a933a7390f884b9a24f (diff) | |
| download | u-boot-05e254862f201ae93fdf1f2e4fc0de203d25d325.tar.xz | |
board: sifive: Add an interface to get PCB revision
There are different DDR parameter settings for different board
revisions. Add a new interface to get the PCB revision to determine
which DT should be selected at runtime.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/include/asm/arch-fu740/eeprom.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/arch-fu740/eeprom.h b/arch/riscv/include/asm/arch-fu740/eeprom.h new file mode 100644 index 0000000000..0e1220e558 --- /dev/null +++ b/arch/riscv/include/asm/arch-fu740/eeprom.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2021 SiFive, Inc. + * + * Zong Li <zong.li@sifve.com> + */ + +#ifndef _ASM_RISCV_EEPROM_H +#define _ASM_RISCV_EEPROM_H + +#define PCB_REVISION_REV3 0x3 + +u8 get_pcb_revision_from_eeprom(void); + +#endif /* _ASM_RISCV_EEPROM_H */ |