From c0d4eeb387f9892ad33e117ab3fc3648918e823a Mon Sep 17 00:00:00 2001 From: Felix Held Date: Mon, 10 Aug 2020 20:37:16 +0200 Subject: soc/amd/common/espi_util: espi_std_io_decode: fix edge case bug When address and data register for the SIO control register access is passed as one I/O region with a size of 2, the corresponding special decode enable register should be used instead of a generic one to save the rather limited generic ones for other decode ranges. Change-Id: Ie54ff6afa2bd2156f7b3a3cf83091f1f932b6993 Signed-off-by: Felix Held Reviewed-on: https://review.coreboot.org/c/coreboot/+/44351 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/soc/amd/common/block/lpc/espi_util.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/soc/amd/common/block') diff --git a/src/soc/amd/common/block/lpc/espi_util.c b/src/soc/amd/common/block/lpc/espi_util.c index 3f26a29eb8..4415615545 100644 --- a/src/soc/amd/common/block/lpc/espi_util.c +++ b/src/soc/amd/common/block/lpc/espi_util.c @@ -104,6 +104,9 @@ static int espi_get_unused_io_window(void) */ static int espi_std_io_decode(uint16_t base, size_t size) { + if (size == 2 && base == 0x2e) + return ESPI_DECODE_IO_0X2E_0X2F_EN; + if (size != 1) return -1; -- cgit v1.2.3