qcs405: Add DRAM resources

TEST=build

Change-Id: Iea79a942c297400c88aa205da713bcfcb8c51185
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Nitheesh Sekar <nsekar@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29954
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/soc/qualcomm/qcs405/include/soc/memlayout.ld

@@ -42,7 +42,9 @@ SECTIONS
 	REGION(bsram_unused, 0x8C68C00, 0xA2400, 0x100)
 	BSRAM_END(0x8D80000)
 
-	DRAM_START(0x90000000)
-	POSTRAM_CBFS_CACHE(0x90000000, 384K)
-	RAMSTAGE(0x90800000, 128K)
+	DRAM_START(0x80000000)
+	/* DDR Carveout for BL31 usage */
+	REGION(dram_reserved, 0x85000000, 0x5100000, 4096)
+	POSTRAM_CBFS_CACHE(0x9F800000, 384K)
+	RAMSTAGE(0x9F860000, 128K)
 }

src/soc/qualcomm/qcs405/include/soc/symbols.h

@@ -21,5 +21,6 @@
 
 DECLARE_REGION(ssram);
 DECLARE_REGION(bsram);
+DECLARE_REGION(dram_reserved);
 
 #endif // _SOC_QUALCOMM_QCS405_SYMBOLS_H_

src/soc/qualcomm/qcs405/soc.c

@@ -13,12 +13,17 @@
  * GNU General Public License for more details.
  */
 
+#include <symbols.h>
 #include <device/device.h>
 #include <timestamp.h>
+#include <soc/mmu.h>
+#include <soc/symbols.h>
 
 static void soc_read_resources(struct device *dev)
 {
-
+	ram_resource(dev, 0, (uintptr_t)_dram / KiB, (1 * GiB) / KiB);
+	reserved_ram_resource(dev, 1, (uintptr_t)_dram_reserved / KiB,
+			      REGION_SIZE(dram_reserved) / KiB);
 }
 
 static void soc_init(struct device *dev)