ARM: uniphier: do not setup pins for System Bus on NAND boot mode
For LD11 and LD20 SoCs, the System Bus and NAND are multiplexed
in the same I/O pins. When booting from a NAND device, pin-mux
for the System Bus must not be set-up because they are exclusive
with each other.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/init/init-ld11.c b/arch/arm/mach-uniphier/init/init-ld11.c
index e324c94..fdb2838 100644
--- a/arch/arm/mach-uniphier/init/init-ld11.c
+++ b/arch/arm/mach-uniphier/init/init-ld11.c
@@ -15,7 +15,9 @@
{
uniphier_sbc_init_savepin(bd);
uniphier_pxs2_sbc_init(bd);
- uniphier_pin_init("system_bus_grp");
+ /* pins for NAND and System Bus are multiplexed */
+ if (spl_boot_device() != BOOT_DEVICE_NAND)
+ uniphier_pin_init("system_bus_grp");
support_card_reset();
diff --git a/arch/arm/mach-uniphier/init/init-ld20.c b/arch/arm/mach-uniphier/init/init-ld20.c
index cb05421..37b860a 100644
--- a/arch/arm/mach-uniphier/init/init-ld20.c
+++ b/arch/arm/mach-uniphier/init/init-ld20.c
@@ -15,7 +15,9 @@
{
uniphier_sbc_init_savepin(bd);
uniphier_pxs2_sbc_init(bd);
- uniphier_pin_init("system_bus_grp");
+ /* pins for NAND and System Bus are multiplexed */
+ if (spl_boot_device() != BOOT_DEVICE_NAND)
+ uniphier_pin_init("system_bus_grp");
support_card_reset();