[PATCH v4 03/25] 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 <c...@rock-chips.com>
Signed-off-by: Jagan Teki <ja...@edgeble.ai>
Reviewed-by: Kever Yang <kever.y...@rock-chips.com>
---
Changes for v4:
- none
Changes for v3:
- collect Kever r-b
Changes for v2:
- none

 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 ce49a91393..1cb67cf14a 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);
-- 
2.25.1