[22/92] ram: rk3399: Update cs0_row to use sys_reg3
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Message ID 20190611145135.21399-23-jagan@amarulasolutions.com
State New
Headers show
Series
  • ram: rk3399: Add LPDDR4 support
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Commit Message

Jagan Teki June 11, 2019, 2:50 p.m. UTC 
cs0_row can handle the pmu via sys_reg2 and sys_reg3 while
configuring the dram instead of just sys_reg2.

So, update cs0_row macro to make use of both sys_reg2,
sys_reg3.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
---
 arch/arm/include/asm/arch-rockchip/sdram_common.h | 8 ++++++--
 drivers/ram/rockchip/sdram_rk3399.c               | 4 +++-
 2 files changed, 9 insertions(+), 3 deletions(-)

Patch
diff mbox series 

diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h
index 7e0b491859..3d1d5badb4 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -51,8 +51,6 @@ 
 					SYS_REG_BK_SHIFT(ch))
 #define SYS_REG_CS0_ROW_SHIFT(ch)	(6 + (ch) * 16)
 #define SYS_REG_CS0_ROW_MASK		3
-#define SYS_REG_ENC_CS0_ROW(n, ch)	(((n) - 13) << \
-					SYS_REG_CS0_ROW_SHIFT(ch))
 #define SYS_REG_CS1_ROW_SHIFT(ch)	(4 + (ch) * 16)
 #define SYS_REG_CS1_ROW_MASK		3
 #define SYS_REG_ENC_CS1_ROW(n, ch)	(((n) - 13) << \
@@ -64,6 +62,12 @@ 
 #define SYS_REG_DBW_MASK		3
 #define SYS_REG_ENC_DBW(n, ch)		((2 >> (n)) << SYS_REG_DBW_SHIFT(ch))
 
+#define SYS_REG_ENC_CS0_ROW(n, os_reg2, os_reg3, ch) do { \
+			(os_reg2) |= (((n) - 13) & 0x3) << (6 + 16 * (ch)); \
+			(os_reg3) |= ((((n) - 13) & 0x4) >> 2) << \
+				     (5 + 2 * (ch)); \
+		} while (0)
+
 /* Get sdram size decode from reg */
 size_t rockchip_sdram_size(phys_addr_t reg);
 
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 4463fc84c8..2408246d0d 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1006,6 +1006,7 @@  static void dram_all_config(struct dram_info *dram,
 			    const struct rk3399_sdram_params *sdram_params)
 {
 	u32 sys_reg2 = 0;
+	u32 sys_reg3 = 0;
 	unsigned int channel, idx;
 
 	sys_reg2 |= SYS_REG_ENC_DDRTYPE(sdram_params->base.dramtype);
@@ -1026,10 +1027,10 @@  static void dram_all_config(struct dram_info *dram,
 		sys_reg2 |= SYS_REG_ENC_RANK(info->rank, channel);
 		sys_reg2 |= SYS_REG_ENC_COL(info->col, channel);
 		sys_reg2 |= SYS_REG_ENC_BK(info->bk, channel);
-		sys_reg2 |= SYS_REG_ENC_CS0_ROW(info->cs0_row, channel);
 		sys_reg2 |= SYS_REG_ENC_CS1_ROW(info->cs1_row, channel);
 		sys_reg2 |= SYS_REG_ENC_BW(info->bw, channel);
 		sys_reg2 |= SYS_REG_ENC_DBW(info->dbw, channel);
+		SYS_REG_ENC_CS0_ROW(info->cs0_row, sys_reg2, sys_reg3, channel);
 
 		ddr_msch_regs = dram->chan[channel].msch;
 		noc_timing = &sdram_params->ch[channel].noc_timings;
@@ -1051,6 +1052,7 @@  static void dram_all_config(struct dram_info *dram,
 	}
 
 	writel(sys_reg2, &dram->pmugrf->os_reg2);
+	writel(sys_reg3, &dram->pmugrf->os_reg3);
 	rk_clrsetreg(&dram->pmusgrf->soc_con4, 0x1f << 10,
 		     sdram_params->base.stride << 10);