projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| ba932bc8 CB |
1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* | |
| 3 | * Copyright (C) 2017 Renesas Electronics | |
| 4 | * Copyright (C) Chris Brandt | |
| 5 | */ | |
| 6 | ||
| 9a3b4ceb | 7 | #include <cpu_func.h> |
| e1233791 | 8 | #include <errno.h> |
| 691d719d | 9 | #include <init.h> |
| 401d1c4f | 10 | #include <asm/global_data.h> |
| ba932bc8 CB |
11 | #include <asm/io.h> |
| 12 | #include <asm/arch/sys_proto.h> | |
| 13 | ||
| 14 | #define RZA1_WDT_BASE 0xfcfe0000 | |
| 15 | #define WTCSR 0x00 | |
| 16 | #define WTCNT 0x02 | |
| 17 | #define WRCSR 0x04 | |
| 18 | ||
| 19 | DECLARE_GLOBAL_DATA_PTR; | |
| 20 | ||
| 21 | int board_init(void) | |
| 22 | { | |
| aa6e94de | 23 | gd->bd->bi_boot_params = (CFG_SYS_SDRAM_BASE + 0x100); |
| ba932bc8 CB |
24 | |
| 25 | return 0; | |
| 26 | } | |
| 27 | ||
| 28 | int dram_init(void) | |
| 29 | { | |
| 30 | if (fdtdec_setup_mem_size_base() != 0) | |
| 31 | return -EINVAL; | |
| 32 | ||
| 33 | return 0; | |
| 34 | } | |
| 35 | ||
| 36 | int dram_init_banksize(void) | |
| 37 | { | |
| 38 | fdtdec_setup_memory_banksize(); | |
| 39 | ||
| 40 | return 0; | |
| 41 | } | |
| 42 | ||
| 35b65dd8 | 43 | void reset_cpu(void) |
| ba932bc8 CB |
44 | { |
| 45 | /* Dummy read (must read WRCSR:WOVF at least once before clearing) */ | |
| 46 | readb(RZA1_WDT_BASE + WRCSR); | |
| 47 | ||
| 48 | writew(0xa500, RZA1_WDT_BASE + WRCSR); | |
| 49 | writew(0x5a5f, RZA1_WDT_BASE + WRCSR); | |
| 50 | writew(0x5a00, RZA1_WDT_BASE + WTCNT); | |
| 51 | writew(0xa578, RZA1_WDT_BASE + WTCSR); | |
| 52 | ||
| 53 | for (;;) | |
| 54 | asm volatile("wfi"); | |
| 55 | } |