aspeed/smc: Open AHB window of the second chip of the AST2600 FMC controller

This change works around the HW default values to be able to test the
Tacoma board with -kernel command line option. This was required when
we had both flash chips enabled in the device tree, otherwise Linux
would fail to probe the entire controller leaving it with no rootfs.

Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-Id: <20200819100956.2216690-20-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index 8c79a5552f93426eb62c4291ed225e6839f469e7..795784e5f364f9ea1e8d95bd6c590d0f5a43770f 100644 (file)
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -230,7 +230,7 @@ static void aspeed_smc_reg_to_segment(const AspeedSMCState *s, uint32_t reg,
 
 static const AspeedSegments aspeed_segments_ast2600_fmc[] = {
     { 0x0, 128 * MiB }, /* start address is readonly */
-    { 0x0, 0 }, /* disabled */
+    { 128 * MiB, 128 * MiB }, /* default is disabled but needed for -kernel */
     { 0x0, 0 }, /* disabled */
 };