From 1fb4dab2a1444df7f0a8d1cc3887a7e6605635f5 Mon Sep 17 00:00:00 2001 From: Przemyslaw Marczak Date: Mon, 1 Sep 2014 13:50:48 +0200 Subject: [PATCH] arm:reset: call the reset_misc() before the cpu reset On an Odroid U3 board, the SOC is unable to reset the eMMC card in the DWMMC mode by the cpu software reset. Manual reset of the card by switching proper gpio pin - fixes this issue. Such solution needs to add a call to pre reset function. This is done by the reset_misc() function, which is called before reset_cpu(). The function reset_misc() is a weak function. Signed-off-by: Przemyslaw Marczak Cc: Minkyu Kang Cc: Jean-Christophe PLAGNIOL-VILLARD Cc: Albert ARIBAUD Cc: Tom Rini Changes v4: - arch/arm/reset: fix weak function attribute to proper style Signed-off-by: Minkyu Kang --- arch/arm/lib/reset.c | 6 ++++++ include/common.h | 1 + 2 files changed, 7 insertions(+) diff --git a/arch/arm/lib/reset.c b/arch/arm/lib/reset.c index 7a0358071c..9a95f08504 100644 --- a/arch/arm/lib/reset.c +++ b/arch/arm/lib/reset.c @@ -23,6 +23,10 @@ #include +__weak void reset_misc(void) +{ +} + int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { puts ("resetting ...\n"); @@ -30,6 +34,8 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) udelay (50000); /* wait 50 ms */ disable_interrupts(); + + reset_misc(); reset_cpu(0); /*NOTREACHED*/ diff --git a/include/common.h b/include/common.h index c7e51ca41c..97c04df588 100644 --- a/include/common.h +++ b/include/common.h @@ -616,6 +616,7 @@ int checkicache (void); int checkdcache (void); void upmconfig (unsigned int, unsigned int *, unsigned int); ulong get_tbclk (void); +void reset_misc (void); void reset_cpu (ulong addr); #if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP) void ft_cpu_setup(void *blob, bd_t *bd); -- 2.39.2