From: Jagan Teki <jagan@edgeble.ai>
Date: Wed, 14 Dec 2022 17:50:49 +0000 (+0530)
Subject: ram: rockchip: Compute ddr capacity based on grf split
X-Git-Tag: baikal/mips/sdk5.8.2~5^2~87^2~30
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=a3368668db93028198c01ab7ae63451d6ba39d4a;p=uboot.git

ram: rockchip: Compute ddr capacity based on grf split

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@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
---

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 ec46ba5457..60fc90d0a5 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 86185149a9..2728d93be3 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 b511c6bf6f..184c93f776 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 56fd863ca2..b1fea04e84 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -2986,7 +2986,7 @@ 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);