From 08e463ee8a7a5641e191be2a8e934d8284d1ca55 Mon Sep 17 00:00:00 2001 From: Dinh Nguyen Date: Mon, 30 Mar 2015 17:01:07 -0500 Subject: arm: socfpga: spl: allow bootrom to enable IOs after warm reset Signed-off-by: Dinh Nguyen Acked-by: Marek Vasut --- arch/arm/cpu/armv7/socfpga/system_manager.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/arm/cpu/armv7/socfpga/system_manager.c') diff --git a/arch/arm/cpu/armv7/socfpga/system_manager.c b/arch/arm/cpu/armv7/socfpga/system_manager.c index 11f7badbf2..8126e0d43c 100644 --- a/arch/arm/cpu/armv7/socfpga/system_manager.c +++ b/arch/arm/cpu/armv7/socfpga/system_manager.c @@ -66,3 +66,12 @@ void sysmgr_pinmux_init(void) populate_sysmgr_fpgaintf_module(); } + +/* + * This bit allows the bootrom to configure the IOs after a warm reset. + */ +void sysmgr_enable_warmrstcfgio(void) +{ + setbits_le32(&sysmgr_regs->romcodegrp_ctrl, + SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO); +} -- cgit v1.2.1