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| author | Tom Rini <trini@konsulko.com> | 2025-07-10 16:44:08 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-07-10 16:44:08 -0600 |
| commit | 6bb0679377abb01a82db1ce69b5bf1d40aa02ace (patch) | |
| tree | 1049a2319a61e7caaff8cbca3ca4b082075dfcfe /board/renesas/common/rza1-common.c | |
| parent | f074616014179eefbca6f4b86b1fa6336711ba80 (diff) | |
| parent | 25adecf09467c6a2823bcdfaf3fb0b59b2389669 (diff) | |
Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-sh
- SH Ether clean ups, RZ/A1 clean ups, RZ/A1 Genmai support
- Gen3 EEPROM DT node clean up
- V4H SA0 BootROM compatible binman etype, SCIF compatible SREC
generation for Gen4
Diffstat (limited to 'board/renesas/common/rza1-common.c')
| -rw-r--r-- | board/renesas/common/rza1-common.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/board/renesas/common/rza1-common.c b/board/renesas/common/rza1-common.c new file mode 100644 index 00000000000..5027319a58a --- /dev/null +++ b/board/renesas/common/rza1-common.c @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2017 Renesas Electronics + * Copyright (C) Chris Brandt + */ + +#include <init.h> +#include <asm/io.h> + +#define RZA1_WDT_BASE 0xfcfe0000 +#define WTCSR 0x00 +#define WTCNT 0x02 +#define WRCSR 0x04 + +void __weak reset_cpu(void) +{ + /* Dummy read (must read WRCSR:WOVF at least once before clearing) */ + readb(RZA1_WDT_BASE + WRCSR); + + writew(0xa500, RZA1_WDT_BASE + WRCSR); + writew(0x5a5f, RZA1_WDT_BASE + WRCSR); + writew(0x5a00, RZA1_WDT_BASE + WTCNT); + writew(0xa578, RZA1_WDT_BASE + WTCSR); + + for (;;) + asm volatile("wfi"); +} |