[U-Boot] [PATCH] ARM: UniPhier: reset on-board devices on start-up

If a support card is attached to the main board, the on-board SMSC9118 LAN controller is available. It must be kept in reset state for a while on start-up.
When the board is kicked via a debbuger rather than pushing the hardware reset button, on-board chips are not reset; in this case the reset signals should be asserted by software.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com ---
arch/arm/cpu/armv7/uniphier/ph1-ld4/board_postclk_init.c | 2 ++ arch/arm/cpu/armv7/uniphier/ph1-pro4/board_postclk_init.c | 2 ++ arch/arm/cpu/armv7/uniphier/reset.c | 3 --- 3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/arm/cpu/armv7/uniphier/ph1-ld4/board_postclk_init.c b/arch/arm/cpu/armv7/uniphier/ph1-ld4/board_postclk_init.c index 4302277..5bb8179 100644 --- a/arch/arm/cpu/armv7/uniphier/ph1-ld4/board_postclk_init.c +++ b/arch/arm/cpu/armv7/uniphier/ph1-ld4/board_postclk_init.c @@ -24,6 +24,8 @@ int board_postclk_init(void)
sg_init();
+ uniphier_board_reset(); + pll_init();
uniphier_board_init(); diff --git a/arch/arm/cpu/armv7/uniphier/ph1-pro4/board_postclk_init.c b/arch/arm/cpu/armv7/uniphier/ph1-pro4/board_postclk_init.c index 7198829..9a53743 100644 --- a/arch/arm/cpu/armv7/uniphier/ph1-pro4/board_postclk_init.c +++ b/arch/arm/cpu/armv7/uniphier/ph1-pro4/board_postclk_init.c @@ -21,6 +21,8 @@ int board_postclk_init(void)
sg_init();
+ uniphier_board_reset(); + pll_init();
uniphier_board_init(); diff --git a/arch/arm/cpu/armv7/uniphier/reset.c b/arch/arm/cpu/armv7/uniphier/reset.c index b0dc967..50d1fed 100644 --- a/arch/arm/cpu/armv7/uniphier/reset.c +++ b/arch/arm/cpu/armv7/uniphier/reset.c @@ -8,14 +8,11 @@ #include <common.h> #include <asm/io.h> #include <asm/arch/sc-regs.h> -#include <asm/arch/board.h>
void reset_cpu(unsigned long ignored) { u32 tmp;
- uniphier_board_reset(); - writel(5, SC_IRQTIMSET); /* default value */
tmp = readl(SC_SLFRSTSEL);

2014-11-05 14:25 GMT+09:00 Masahiro Yamada yamada.m@jp.panasonic.com:
If a support card is attached to the main board, the on-board SMSC9118 LAN controller is available. It must be kept in reset state for a while on start-up.
When the board is kicked via a debbuger rather than pushing the hardware reset button, on-board chips are not reset; in this case the reset signals should be asserted by software.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com
Applied to u-boot-uniphier/master.
participants (2)
-
Masahiro YAMADA
-
Masahiro Yamada