diff options
Diffstat (limited to 'meta-oe/recipes-support/devmem2/devmem2/devmem2-fixups-2.patch')
| -rw-r--r-- | meta-oe/recipes-support/devmem2/devmem2/devmem2-fixups-2.patch | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/meta-oe/recipes-support/devmem2/devmem2/devmem2-fixups-2.patch b/meta-oe/recipes-support/devmem2/devmem2/devmem2-fixups-2.patch new file mode 100644 index 0000000000..4517797fc7 --- /dev/null +++ b/meta-oe/recipes-support/devmem2/devmem2/devmem2-fixups-2.patch @@ -0,0 +1,91 @@ +--- devmem2.c 2004-08-05 01:55:25.000000000 +0200 ++++ devmem2_modif.c 2011-01-13 15:48:37.798799784 +0100 +@@ -45,12 +45,16 @@ + #define MAP_SIZE 4096UL + #define MAP_MASK (MAP_SIZE - 1) + ++static inline void *fixup_addr(void *addr, size_t size); ++ + int main(int argc, char **argv) { + int fd; + void *map_base, *virt_addr; +- unsigned long read_result, writeval; ++ unsigned long read_result, write_val; + off_t target; + int access_type = 'w'; ++ char fmt_str[128]; ++ size_t data_size; + + if(argc < 2) { + fprintf(stderr, "\nUsage:\t%s { address } [ type [ data ] ]\n" +@@ -79,38 +83,51 @@ + virt_addr = map_base + (target & MAP_MASK); + switch(access_type) { + case 'b': ++ data_size = sizeof(unsigned char); ++ virt_addr = fixup_addr(virt_addr, data_size); + read_result = *((unsigned char *) virt_addr); + break; + case 'h': ++ data_size = sizeof(unsigned short); ++ virt_addr = fixup_addr(virt_addr, data_size); + read_result = *((unsigned short *) virt_addr); + break; + case 'w': ++ data_size = sizeof(unsigned long); ++ virt_addr = fixup_addr(virt_addr, data_size); + read_result = *((unsigned long *) virt_addr); + break; + default: + fprintf(stderr, "Illegal data type '%c'.\n", access_type); + exit(2); + } +- printf("Value at address 0x%X (%p): 0x%X\n", target, virt_addr, read_result); ++ sprintf(fmt_str, "Read at address 0x%%08lX (%%p): 0x%%0%dlX\n", 2*data_size); ++ printf(fmt_str, (unsigned long)target, virt_addr, read_result); + fflush(stdout); + + if(argc > 3) { +- writeval = strtoul(argv[3], 0, 0); ++ write_val = strtoul(argv[3], 0, 0); + switch(access_type) { + case 'b': +- *((unsigned char *) virt_addr) = writeval; ++ virt_addr = fixup_addr(virt_addr, sizeof(unsigned char)); ++ *((unsigned char *) virt_addr) = write_val; + read_result = *((unsigned char *) virt_addr); + break; + case 'h': +- *((unsigned short *) virt_addr) = writeval; ++ virt_addr = fixup_addr(virt_addr, sizeof(unsigned short)); ++ *((unsigned short *) virt_addr) = write_val; + read_result = *((unsigned short *) virt_addr); + break; + case 'w': +- *((unsigned long *) virt_addr) = writeval; ++ virt_addr = fixup_addr(virt_addr, sizeof(unsigned long)); ++ *((unsigned long *) virt_addr) = write_val; + read_result = *((unsigned long *) virt_addr); + break; + } +- printf("Written 0x%X; readback 0x%X\n", writeval, read_result); ++ sprintf(fmt_str, "Write at address 0x%%08lX (%%p): 0x%%0%dlX, " ++ "readback 0x%%0%dlX\n", 2*data_size, 2*data_size); ++ printf(fmt_str, (unsigned long)target, virt_addr, ++ write_val, read_result); + fflush(stdout); + } + +@@ -119,3 +136,12 @@ + return 0; + } + ++static inline void *fixup_addr(void *addr, size_t size) ++{ ++#ifdef FORCE_STRICT_ALIGNMENT ++ unsigned long aligned_addr = (unsigned long)addr; ++ aligned_addr &= ~(size - 1); ++ addr = (void *)aligned_addr; ++#endif ++ return addr; ++} |