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ARM: uniphier: do not setup pins for System Bus on NAND boot mode

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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>
This commit is contained in:
Masahiro Yamada 2016-09-26 13:13:16 +09:00
parent f5fd45ff64
commit dacdb24027
2 changed files with 6 additions and 2 deletions
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4
arch/arm/mach-uniphier/init/init-ld11.c
View File

@ -15,7 +15,9 @@ int uniphier_ld11_init(const struct uniphier_board_data *bd)
{ {
uniphier_sbc_init_savepin(bd); uniphier_sbc_init_savepin(bd);
uniphier_pxs2_sbc_init(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(); support_card_reset();

4
arch/arm/mach-uniphier/init/init-ld20.c
View File

@ -15,7 +15,9 @@ int uniphier_ld20_init(const struct uniphier_board_data *bd)
{ {
uniphier_sbc_init_savepin(bd); uniphier_sbc_init_savepin(bd);
uniphier_pxs2_sbc_init(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(); support_card_reset();