From 9fd0895cb4a8cf8d4ece09d62628b6d4b91177ae Mon Sep 17 00:00:00 2001 From: Lee Leahy Date: Tue, 2 Feb 2016 07:17:06 -0800 Subject: soc/intel/quark: Enable ESRAM The Quark SoC uses ESRAM instead of cache-as-RAM. This code requires that utils/xcompile/xcompile change the machine architecture from i686 to i586 to ensure that the Quark does not attempt to execute unsupported instructions: * Adjust Makefile.inc to add the RMU to the coreboot image * Add code to enable the ESRAM Directly use the QuarkSocPkg/QuarkNorthCluster/Include/QuarkNcSocId.h file from the EDK2 tree (https://github.com/tianocore/edk2.git) to enable easy differences and correct issues in coreboot that were found in EDK2. Testing on Galileo: * Edit the src/mainboard/intel/galileo/Makefile.inc file * Add "select ADD_RMU_FILE" * Place the rmu.bin file in the location specified by CONFIG_RMU_FILE * Remove power from the board * Apply power to the board * Testing is successful if the SD LED is on indicating that the end of esram_init.inc was reached Change-Id: I91d919da144bb72a5d4c4a8050ffab256632a395 Signed-off-by: Lee Leahy Reviewed-on: https://review.coreboot.org/13440 Tested-by: build bot (Jenkins) Reviewed-by: FEI WANG Reviewed-by: Aaron Durbin --- src/soc/intel/quark/memmap.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/soc/intel/quark/memmap.c') diff --git a/src/soc/intel/quark/memmap.c b/src/soc/intel/quark/memmap.c index 2edfdc40e8..71e478433e 100644 --- a/src/soc/intel/quark/memmap.c +++ b/src/soc/intel/quark/memmap.c @@ -14,6 +14,13 @@ */ #include +#include + +size_t mmap_region_granularity(void) +{ + /* Align to 8 MiB by default */ + return 8 << 20; +} void *cbmem_top(void) { -- cgit v1.2.3