[PATCH 04/28] ram: rockchip: Compute ddr capacity based on grf split

[Jagan Teki]

DDR chip capacity is computed based on GRF split in some
Rockchip SoC's like PX30 and RV1126.

Add split argument in ddr print info so-that the respective
ddr driver will pass the grf split.

Signed-off-by: YouMin Chen <cym at rock-chips.com>
Signed-off-by: Jagan Teki <jagan at edgeble.ai>
---
 arch/arm/include/asm/arch-rockchip/sdram_common.h | 2 +-
 drivers/ram/rockchip/sdram_common.c               | 6 ++++--
 drivers/ram/rockchip/sdram_px30.c                 | 2 +-
 drivers/ram/rockchip/sdram_rk3328.c               | 2 +-
 drivers/ram/rockchip/sdram_rk3399.c               | 2 +-
 5 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h
index 5efa6e9445..a14b37cbc5 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -116,7 +116,7 @@ struct sdram_base_params {
 
 void sdram_print_dram_type(unsigned char dramtype);
 void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
-			  struct sdram_base_params *base);
+			  struct sdram_base_params *base, u32 split);
 void sdram_print_stride(unsigned int stride);
 
 void sdram_org_config(struct sdram_cap_info *cap_info,
diff --git a/drivers/ram/rockchip/sdram_common.c b/drivers/ram/rockchip/sdram_common.c
index b3e7421d08..1c3236746a 100644
--- a/drivers/ram/rockchip/sdram_common.c
+++ b/drivers/ram/rockchip/sdram_common.c
@@ -36,7 +36,7 @@ void sdram_print_dram_type(unsigned char dramtype)
 }
 
 void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
-			  struct sdram_base_params *base)
+			  struct sdram_base_params *base, u32 split)
 {
 	u64 cap;
 	u32 bg;
@@ -83,6 +83,8 @@ void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
 	cap = sdram_get_cs_cap(cap_info, 3, base->dramtype);
 	if (cap_info->row_3_4)
 		cap = cap * 3 / 4;
+	else if (split)
+		cap = cap / 2 + (split << 24) / 2;
 
 	printascii(" Size=");
 	printdec(cap >> 20);
@@ -123,7 +125,7 @@ inline void sdram_print_dram_type(unsigned char dramtype)
 }
 
 inline void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
-				 struct sdram_base_params *base)
+				 struct sdram_base_params *base, u32 split)
 {
 }
 
diff --git a/drivers/ram/rockchip/sdram_px30.c b/drivers/ram/rockchip/sdram_px30.c
index 357fe2432a..a003893538 100644
--- a/drivers/ram/rockchip/sdram_px30.c
+++ b/drivers/ram/rockchip/sdram_px30.c
@@ -711,7 +711,7 @@ int sdram_init(void)
 	if (ret)
 		goto error;
 
-	sdram_print_ddr_info(&sdram_params->ch.cap_info, &sdram_params->base);
+	sdram_print_ddr_info(&sdram_params->ch.cap_info, &sdram_params->base, 0);
 
 	printascii("out\n");
 	return ret;
diff --git a/drivers/ram/rockchip/sdram_rk3328.c b/drivers/ram/rockchip/sdram_rk3328.c
index 9c6798f816..efe0049ead 100644
--- a/drivers/ram/rockchip/sdram_rk3328.c
+++ b/drivers/ram/rockchip/sdram_rk3328.c
@@ -506,7 +506,7 @@ static int sdram_init_detect(struct dram_info *dram,
 		writel(sys_reg3, &dram->grf->os_reg[3]);
 	}
 
-	sdram_print_ddr_info(&sdram_params->ch.cap_info, &sdram_params->base);
+	sdram_print_ddr_info(&sdram_params->ch.cap_info, &sdram_params->base, 0);
 
 	return 0;
 }
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 0a88ee9f93..86f5c06583 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -2983,7 +2983,7 @@ static int sdram_init(struct dram_info *dram,
 			continue;
 		}
 
-		sdram_print_ddr_info(cap_info, &params->base);
+		sdram_print_ddr_info(cap_info, &params->base, 0);
 		set_memory_map(chan, channel, params);
 		cap_info->ddrconfig =
 			calculate_ddrconfig(params, channel);
-- 
2.25.1