From 1ca6b531eef43c675b73ee47a59afd2e28d57d7e Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Tue, 13 Oct 2020 23:43:00 +0200 Subject: nb/intel/haswell: Drop ASM to call into MRC Commit c2ee680 (sandybridge: Use calls rather than asm to call to MRC.) did it for Sandy Bridge, and this commit does it for Haswell. Tested on Asrock B85M Pro4, still boots with MRC. Change-Id: Ic915ae2a30f99805b2c87df8f9a9586a74a40c29 Signed-off-by: Angel Pons Reviewed-on: https://review.coreboot.org/c/coreboot/+/46370 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber --- src/northbridge/intel/haswell/raminit.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'src/northbridge/intel/haswell') diff --git a/src/northbridge/intel/haswell/raminit.c b/src/northbridge/intel/haswell/raminit.c index fbe4cd5d2c..b23f07252e 100644 --- a/src/northbridge/intel/haswell/raminit.c +++ b/src/northbridge/intel/haswell/raminit.c @@ -108,7 +108,8 @@ static void report_memory_config(void) */ void sdram_initialize(struct pei_data *pei_data) { - unsigned long entry; + int (*entry)(struct pei_data *pei_data) __attribute__((regparm(1))); + uint32_t type = CBFS_TYPE_MRC; struct cbfsf f; @@ -137,11 +138,9 @@ void sdram_initialize(struct pei_data *pei_data) die("mrc.bin not found!"); /* We don't care about leaking the mapping */ - entry = (unsigned long)rdev_mmap_full(&f.data); + entry = rdev_mmap_full(&f.data); if (entry) { - int rv; - asm volatile ("call *%%ecx\n\t" - :"=a" (rv) : "c" (entry), "a" (pei_data)); + int rv = entry(pei_data); /* The mrc.bin reconfigures USB, so usbdebug needs to be reinitialized */ if (CONFIG(USBDEBUG_IN_PRE_RAM)) -- cgit v1.2.3