* pci modify[.b, .w, .l] bus.device.function [addr]
* pci write[.b, .w, .l] bus.device.function addr value
*/
-int do_pci (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pci (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr = 0, value = 0, size = 0;
pci_dev_t bdf = 0;