FreeCalypso > hg > freecalypso-sw
view target-utils/pirexplore/flashid.c @ 992:a7b0b426f9ca
target-utils: boot ROM UART autodetection revamped
The new implementation should work with both the familiar Calypso C035
boot ROM version found in our regular targets as well as the older
Calypso F741979B version found on the vintage D-Sample board.
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Wed, 30 Dec 2015 21:28:41 +0000 |
parents | 9539929b3414 |
children |
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#include "types.h" void cmd_flashid(argbulk) char *argbulk; { char *argv[2]; u32 base_addr; if (parse_args(argbulk, 1, 1, argv, 0) < 0) return; if (argv[0][0] == '1' && !argv[0][1]) base_addr = 0x03000000; else if (argv[0][0] == '2' && !argv[0][1]) base_addr = 0x02000000; else { printf("ERROR: argument must be 1 or 2\n"); return; } printf("Base addr: %08X\n", base_addr); *(volatile u16 *)(base_addr + 0xAAA) = 0xAA; *(volatile u16 *)(base_addr + 0x554) = 0x55; *(volatile u16 *)(base_addr + 0xAAA) = 0x90; printf("offset 00: %04X\n", *(volatile u16 *)(base_addr + 0x00)); printf("offset 02: %04X\n", *(volatile u16 *)(base_addr + 0x02)); printf("offset 1C: %04X\n", *(volatile u16 *)(base_addr + 0x1C)); printf("offset 1E: %04X\n", *(volatile u16 *)(base_addr + 0x1E)); *(volatile u16 *)(base_addr + 0xAAA) = 0xF0; }