ATAG_REVISION is unsigned number and revision in DT is stored as hexadecimal string value. It means that it will be correctly parsed by kernel.
Signed-off-by: Pali Rohár <[email protected]> Acked-by: Pavel Machek <[email protected]> --- arch/arm/boot/compressed/atags_to_fdt.c | 37 +++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c index 9448aa0..b23748e 100644 --- a/arch/arm/boot/compressed/atags_to_fdt.c +++ b/arch/arm/boot/compressed/atags_to_fdt.c @@ -97,6 +97,39 @@ static void merge_fdt_bootargs(void *fdt, const char *fdt_cmdline) setprop_string(fdt, "/chosen", "bootargs", cmdline); } +static void tohexstr(char * str, int size, unsigned int num) +{ + int len = 0; + int i, tmp; + + if (size < 4) { + if (size > 0) + str[0] = 0; + return; + } + + str[len++] = '0'; + str[len++] = 'x'; + + while (len-1 < size && num) { + tmp = num % 16; + if (tmp >= 10) + tmp += 'A'; + else + tmp += '0'; + str[len++] = tmp; + num /= 16; + } + + str[len] = 0; + + for (i = 2; i < 2+(len-2)/2; ++i) { + tmp = str[i]; + str[i] = str[len-i+1]; + str[len-i+1] = tmp; + } +} + /* * Convert and fold provided ATAGs into the provided FDT. * @@ -171,6 +204,10 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space) cpu_to_fdt32(atag->u.mem.size); } + } else if (atag->hdr.tag == ATAG_REVISION) { + char revision[11]; + tohexstr(revision, sizeof(revision), atag->u.revision.rev); + setprop_string(fdt, "/", "revision", revision); } else if (atag->hdr.tag == ATAG_INITRD2) { uint32_t initrd_start, initrd_size; initrd_start = atag->u.initrd.start; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
