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Export board serial and board revision obtained from FDT blob

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This commit is contained in:
Oleksandr Tymoshenko 2013-01-05 23:08:58 +00:00
parent e57c66d586
commit fd79f4a5a4
1 changed files with 19 additions and 0 deletions
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19
sys/arm/broadcom/bcm2835/bcm2835_machdep.c
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@ -78,6 +78,25 @@ initarm_gpio_init(void)
void
initarm_late_init(void)
{
phandle_t system;
pcell_t cells[2];
int len;
/*
* It seems there is no way to let syscons framework know
* that framebuffer resolution has changed. So just try
* to fetch data from FDT and go with defaults if failed
*/
system = OF_finddevice("/system");
if (system != 0) {
len = OF_getprop(system, "linux,serial", &cells, sizeof(cells));
if (len > 0)
board_set_serial(fdt64_to_cpu(*((uint64_t *)cells)));
len = OF_getprop(system, "linux,revision", &cells, sizeof(cells));
if (len > 0)
board_set_revision(fdt32_to_cpu(*((uint32_t *)cells)));
}
}
#define FDT_DEVMAP_MAX (2) // FIXME