| Message ID | 1474863196-19449-1-git-send-email-yamada.masahiro@socionext.com |
|---|---|
| State | Accepted |
| Commit | dacdb2402742a0365ca543798a349182872131b4 |
| Delegated to: | Masahiro Yamada |
| Headers | show |
2016-09-26 13:13 GMT+09:00 Masahiro Yamada <yamada.masahiro@socionext.com>: > 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> Applied to u-boot-uniphier/master.
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 @@ int uniphier_ld11_init(const struct uniphier_board_data *bd) { 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 @@ int uniphier_ld20_init(const struct uniphier_board_data *bd) { 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();
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> --- arch/arm/mach-uniphier/init/init-ld11.c | 4 +++- arch/arm/mach-uniphier/init/init-ld20.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-)