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arm: imx8m: imx8mm-cl-iot-gate: Add support for detect memory size

When purchasing imx8mm-cl-iot-gate it is able to customize the
memory size. It could be 1GB, 2GB and 4GB. We implement
board_phys_sdram_size() to detect the memory size for usage.

Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>
Cc: uboot-imx <uboot-imx@nxp.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Ying-Chun Liu (PaulLiu) 2 years ago
parent
commit
cf73bcc8d7
1 changed files with 25 additions and 0 deletions
  1. 25 0
      board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c

+ 25 - 0
board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c

@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <env.h>
+#include <hang.h>
 #include <init.h>
 #include <miiphy.h>
 #include <netdev.h>
@@ -14,8 +15,32 @@
 #include <asm/arch/sys_proto.h>
 #include <asm/io.h>
 
+#include "ddr/ddr.h"
+
 DECLARE_GLOBAL_DATA_PTR;
 
+int board_phys_sdram_size(phys_size_t *size)
+{
+	struct lpddr4_tcm_desc *lpddr4_tcm_desc =
+		(struct lpddr4_tcm_desc *)TCM_DATA_CFG;
+
+	switch (lpddr4_tcm_desc->size) {
+	case 4096:
+	case 2048:
+	case 1024:
+		*size = (1L << 20) * lpddr4_tcm_desc->size;
+		break;
+	default:
+		printf("%s: DRAM size %uM is not supported\n",
+		       __func__,
+		       lpddr4_tcm_desc->size);
+		hang();
+		break;
+	};
+
+	return 0;
+}
+
 static int setup_fec(void)
 {
 	if (IS_ENABLED(CONFIG_FEC_MXC)) {