ppc: qemu: Delete the temporary FDT virtual-physical mapping after U-Boot is relocated
After U-Boot is relocated to RAM already, the previous temporary FDT
virtual-physical mapping that was used in the pre-relocation phase
is no longer needed. Let's delete the mapping.
get_fdt_virt() might be used before and after relocation, update it
to return different virtual address of FDT.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/freescale/qemu-ppce500/qemu-ppce500.c b/board/freescale/qemu-ppce500/qemu-ppce500.c
index 9c30c12..480776a 100644
--- a/board/freescale/qemu-ppce500/qemu-ppce500.c
+++ b/board/freescale/qemu-ppce500/qemu-ppce500.c
@@ -31,7 +31,10 @@
static void *get_fdt_virt(void)
{
- return (void *)CONFIG_SYS_TMPVIRT;
+ if (gd->flags & GD_FLG_RELOC)
+ return (void *)gd->fdt_blob;
+ else
+ return (void *)CONFIG_SYS_TMPVIRT;
}
static uint64_t get_fdt_phys(void)
@@ -138,6 +141,12 @@
*/
virtio_init();
+ /*
+ * U-Boot is relocated to RAM already, let's delete the temporary FDT
+ * virtual-physical mapping that was used in the pre-relocation phase.
+ */
+ disable_tlb(find_tlb_idx((void *)CONFIG_SYS_TMPVIRT, 1));
+
return 0;
}