From b603c6812919ccb51680735faf1f8c589e82575c Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 5 Nov 2014 14:25:15 +0900 Subject: 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 --- 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(-) (limited to 'arch/arm/cpu') 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 #include #include -#include void reset_cpu(unsigned long ignored) { u32 tmp; - uniphier_board_reset(); - writel(5, SC_IRQTIMSET); /* default value */ tmp = readl(SC_SLFRSTSEL); -- cgit v1.1