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Merge pull request #1135 from fjullien/bios_add_variable_size_mem_write 

bios: add write size option to cmd mem_write
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enjoy-digital 2021-12-20 21:23:16 +01:00 committed by GitHub
parent 321b91d551 f4dab5adac
commit 58f9bce567
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 26 additions and 5 deletions
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31
litex/soc/software/bios/cmds/cmd_mem.c
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@ -2,6 +2,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <libbase/memtest.h>
#include <generated/csr.h>
@ -69,17 +70,20 @@ define_command(mem_read, mem_read_handler, "Read address space", MEM_CMDS);
static void mem_write_handler(int nb_params, char **params)
{
char *c;
unsigned int *addr;
void *addr;
unsigned int value;
unsigned int count;
unsigned int size;
unsigned int i;
if (nb_params < 2) {
printf("mem_write <address> <value> [count]");
printf("mem_write <address> <value> [count] [size]");
return;
}
addr = (unsigned int *)strtoul(params[0], &c, 0);
size = 4;
addr = (void *)strtoul(params[0], &c, 0);
if (*c != 0) {
printf("Incorrect address");
return;
@ -101,8 +105,25 @@ static void mem_write_handler(int nb_params, char **params)
}
}
for (i = 0; i < count; i++)
*addr++ = value;
if (nb_params == 4)
size = strtoul(params[3], &c, 0);
for (i = 0; i < count; i++) {
switch (size) {
case 1:
*(uint8_t *)addr++ = value;
break;
case 2:
*(uint16_t *)addr++ = value;
break;
case 4:
*(uint32_t *)addr++ = value;
break;
default:
printf("Incorrect size");
return;
}
}
}
define_command(mem_write, mem_write_handler, "Write address space", MEM_CMDS);