From: "Ying-Chun Liu (PaulLiu)" paulliu@debian.org

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 --- v2: use hang() instead of while(1) --- .../imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+)

diff --git a/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c b/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c index eabcc842a4..cd15410978 100644 --- a/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c +++ b/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)) {