| // SPDX-License-Identifier: GPL-2.0+ |
| * Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com> |
| * This library provides CMOS (inside RTC SRAM) access routines at a very |
| * early stage when driver model is not available yet. Only read access is |
| * provided. The 16-bit/32-bit read are compatible with driver model RTC |
| * uclass write ops, that data is stored in little-endian mode. |
| #include <asm/early_cmos.h> |
| outb(addr, CMOS_IO_PORT); |
| return inb(CMOS_IO_PORT + 1); |
| for (i = 0; i < sizeof(value); i++) { |
| data = cmos_read8(addr + i); |
| value |= data << (i << 3); |
| for (i = 0; i < sizeof(value); i++) { |
| data = cmos_read8(addr + i); |
| value |= data << (i << 3); |