From dcd2f17ff47cc1a4b26f253fb11a991cfe4ff6f5 Mon Sep 17 00:00:00 2001 From: Piotr Król Date: Fri, 27 May 2016 12:04:13 +0200 Subject: pcengines/apu2: add board support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Initial work based on db-ft3b-ls and code released by Eltan. Board boots with some limitation. Now the AGESA binary is harcoded and board specific until it's fixed by the SoC vendor. memtest86+ from external repo skips looking for SPD on SMBus, which when performed cause memtest86+ to hang. Still didn't tried whole test suit. SeaBIOS 1.9.3 have some problems with USB which lead to no booting in some cases. Full log: https://gist.github.com/pietrushnic/787cbf63f610ff4f6b4ac13e5c20b872 SeaBIOS from PC Engines repository (https://github.com/pcengines/seabios) works fine. Those changes are planned for upstream. Information about obtaining and booting Voyage Linux: https://github.com/pcengines/apu2-documentation#building-firmware-using-apu2-image-builder Change-Id: Id23e448e27f4bba47b7e9e7fa7679e2690c6e4bc Signed-off-by: Piotr Król Signed-off-by: Philipp Deppenwiese Reviewed-on: https://review.coreboot.org/14138 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki --- src/southbridge/amd/pi/hudson/early_setup.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'src/southbridge') diff --git a/src/southbridge/amd/pi/hudson/early_setup.c b/src/southbridge/amd/pi/hudson/early_setup.c index 29809f1aec..553add9f5d 100644 --- a/src/southbridge/amd/pi/hudson/early_setup.c +++ b/src/southbridge/amd/pi/hudson/early_setup.c @@ -25,12 +25,12 @@ #include #include "hudson.h" #include "pci_devs.h" +#include #if IS_ENABLED(CONFIG_HUDSON_UART) #include #include -#include void configure_hudson_uart(void) { @@ -174,4 +174,20 @@ int s3_load_nvram_early(int size, u32 *old_dword, int nvram_pos) return nvram_pos; } +void hudson_clk_output_48Mhz(void) +{ + u32 data, *memptr; + + /* + * Enable the X14M_25M_48M_OSC pin and leaving it at it's default so + * 48Mhz will be on ball AP13 (FT3b package) + */ + memptr = (u32 *)(ACPI_MMIO_BASE + MISC_BASE + FCH_MISC_REG40 ); + data = *memptr; + + /* clear the OSCOUT1_ClkOutputEnb to enable the 48 Mhz clock */ + data &= (u32)~(1<<2); + *memptr = data; +} + #endif -- cgit v1.2.3