[PATCH v2 37/44] x86: apl: Adjust FSP-M code to avoid hard-coded address

[Simon Glass]

Update this code to calculate the address to use, rather than hard-coding
it. Obtain the requested stack size from the FSP.

Signed-off-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner at br-automation.com>
---

Changes in v2:
- Split out the boot_mode change into a separate patch

 arch/x86/cpu/apollolake/fsp_m.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/cpu/apollolake/fsp_m.c b/arch/x86/cpu/apollolake/fsp_m.c
index e19a2b0826..cef937573b 100644
--- a/arch/x86/cpu/apollolake/fsp_m.c
+++ b/arch/x86/cpu/apollolake/fsp_m.c
@@ -24,7 +24,8 @@ int fspm_update_config(struct udevice *dev, struct fspm_upd *upd)
 	cache_ret = prepare_mrc_cache(upd);
 	if (cache_ret && cache_ret != -ENOENT)
 		return log_msg_ret("mrc", cache_ret);
-	arch->stack_base = (void *)0xfef96000;
+	arch->stack_base = (void *)(CONFIG_SYS_CAR_ADDR + CONFIG_SYS_CAR_SIZE -
+		 arch->stack_size);
 	arch->boot_loader_tolum_size = 0;
 	arch->boot_mode = cache_ret ? FSP_BOOT_WITH_FULL_CONFIGURATION :
 		FSP_BOOT_ASSUMING_NO_CONFIGURATION_CHANGES;
-- 
2.27.0.383.g050319c2ae-goog