From 74e56d19534f85a0f7d3c84f6d692534f2e1d9b5 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sun, 11 Oct 2015 21:37:45 -0700 Subject: [PATCH] x86: baytrail: Issue full system reset in reset_cpu() With MRC cache enabled, when typing 'reset' in the U-Boot shell, BayTrail FSP initialization hangs at "Configuring Memory Start": Setting BootMode to 0 Install PPI: 1F4C6F90-B06B-48D8-A201-BAE5F1CD7D56 Register PPI Notify: F894643D-C449-42D1-8EA8-85BDD8C65BDE About to call MrcInit(); BayleyBay Platform Type CurrentMrcData.BootMode = 4 Taking Fastboot path! Configuring Memory Start... Changing reset_cpu() to do a full system reset fixes this issue. Signed-off-by: Bin Meng Acked-by: Simon Glass --- arch/x86/cpu/baytrail/valleyview.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/cpu/baytrail/valleyview.c b/arch/x86/cpu/baytrail/valleyview.c index 215e0d0e2d..a009c14bd9 100644 --- a/arch/x86/cpu/baytrail/valleyview.c +++ b/arch/x86/cpu/baytrail/valleyview.c @@ -65,3 +65,9 @@ int reserve_arch(void) #endif } #endif + +void reset_cpu(ulong addr) +{ + /* cold reset */ + x86_full_reset(); +}