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-rw-r--r--arch/arm/cpu/armv7/am33xx/ddr.c4
-rw-r--r--arch/arm/cpu/armv7/am33xx/emif4.c95
-rw-r--r--arch/arm/include/asm/arch-am33xx/ddr_defs.h4
3 files changed, 45 insertions, 58 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c
index c37f91b2f..b4b3c01e5 100644
--- a/arch/arm/cpu/armv7/am33xx/ddr.c
+++ b/arch/arm/cpu/armv7/am33xx/ddr.c
@@ -85,7 +85,7 @@ int config_ddr_phy(struct ddr_phy_control *p)
/**
* Configure DDR CMD control registers
*/
-int config_cmd_ctrl(struct cmd_control *cmd)
+int config_cmd_ctrl(const struct cmd_control *cmd)
{
writel(cmd->cmd0csratio, &ddr_reg[0]->cm0csratio);
writel(cmd->cmd0csforce, &ddr_reg[0]->cm0csforce);
@@ -111,7 +111,7 @@ int config_cmd_ctrl(struct cmd_control *cmd)
/**
* Configure DDR DATA registers
*/
-int config_ddr_data(int macrono, struct ddr_data *data)
+int config_ddr_data(int macrono, const struct ddr_data *data)
{
writel(data->datardsratio0, &ddr_reg[macrono]->dt0rdsratio0);
writel(data->datardsratio1, &ddr_reg[macrono]->dt0rdsratio1);
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
index 8f7aadc60..26c6a6650 100644
--- a/arch/arm/cpu/armv7/am33xx/emif4.c
+++ b/arch/arm/cpu/armv7/am33xx/emif4.c
@@ -47,58 +47,47 @@ void dram_init_banksize(void)
#ifdef CONFIG_SPL_BUILD
-static void data_macro_config(int dataMacroNum)
-{
- struct ddr_data data;
-
- data.datardsratio0 = ((DDR2_RD_DQS<<30)|(DDR2_RD_DQS<<20)
- |(DDR2_RD_DQS<<10)|(DDR2_RD_DQS<<0));
- data.datardsratio1 = DDR2_RD_DQS>>2;
- data.datawdsratio0 = ((DDR2_WR_DQS<<30)|(DDR2_WR_DQS<<20)
- |(DDR2_WR_DQS<<10)|(DDR2_WR_DQS<<0));
- data.datawdsratio1 = DDR2_WR_DQS>>2;
- data.datawiratio0 = ((DDR2_PHY_WRLVL<<30)|(DDR2_PHY_WRLVL<<20)
- |(DDR2_PHY_WRLVL<<10)|(DDR2_PHY_WRLVL<<0));
- data.datawiratio1 = DDR2_PHY_WRLVL>>2;
- data.datagiratio0 = ((DDR2_PHY_GATELVL<<30)|(DDR2_PHY_GATELVL<<20)
- |(DDR2_PHY_GATELVL<<10)|(DDR2_PHY_GATELVL<<0));
- data.datagiratio1 = DDR2_PHY_GATELVL>>2;
- data.datafwsratio0 = ((DDR2_PHY_FIFO_WE<<30)|(DDR2_PHY_FIFO_WE<<20)
- |(DDR2_PHY_FIFO_WE<<10)|(DDR2_PHY_FIFO_WE<<0));
- data.datafwsratio1 = DDR2_PHY_FIFO_WE>>2;
- data.datawrsratio0 = ((DDR2_PHY_WR_DATA<<30)|(DDR2_PHY_WR_DATA<<20)
- |(DDR2_PHY_WR_DATA<<10)|(DDR2_PHY_WR_DATA<<0));
- data.datawrsratio1 = DDR2_PHY_WR_DATA>>2;
- data.datadldiff0 = PHY_DLL_LOCK_DIFF;
+static const struct ddr_data ddr2_data = {
+ .datardsratio0 = ((DDR2_RD_DQS<<30)|(DDR2_RD_DQS<<20)
+ |(DDR2_RD_DQS<<10)|(DDR2_RD_DQS<<0)),
+ .datardsratio1 = DDR2_RD_DQS>>2,
+ .datawdsratio0 = ((DDR2_WR_DQS<<30)|(DDR2_WR_DQS<<20)
+ |(DDR2_WR_DQS<<10)|(DDR2_WR_DQS<<0)),
+ .datawdsratio1 = DDR2_WR_DQS>>2,
+ .datawiratio0 = ((DDR2_PHY_WRLVL<<30)|(DDR2_PHY_WRLVL<<20)
+ |(DDR2_PHY_WRLVL<<10)|(DDR2_PHY_WRLVL<<0)),
+ .datawiratio1 = DDR2_PHY_WRLVL>>2,
+ .datagiratio0 = ((DDR2_PHY_GATELVL<<30)|(DDR2_PHY_GATELVL<<20)
+ |(DDR2_PHY_GATELVL<<10)|(DDR2_PHY_GATELVL<<0)),
+ .datagiratio1 = DDR2_PHY_GATELVL>>2,
+ .datafwsratio0 = ((DDR2_PHY_FIFO_WE<<30)|(DDR2_PHY_FIFO_WE<<20)
+ |(DDR2_PHY_FIFO_WE<<10)|(DDR2_PHY_FIFO_WE<<0)),
+ .datafwsratio1 = DDR2_PHY_FIFO_WE>>2,
+ .datawrsratio0 = ((DDR2_PHY_WR_DATA<<30)|(DDR2_PHY_WR_DATA<<20)
+ |(DDR2_PHY_WR_DATA<<10)|(DDR2_PHY_WR_DATA<<0)),
+ .datawrsratio1 = DDR2_PHY_WR_DATA>>2,
+ .datadldiff0 = PHY_DLL_LOCK_DIFF,
+};
- config_ddr_data(dataMacroNum, &data);
-}
-
-static void cmd_macro_config(void)
-{
- struct cmd_control cmd;
+static const struct cmd_control ddr2_cmd_ctrl_data = {
+ .cmd0csratio = DDR2_RATIO,
+ .cmd0csforce = CMD_FORCE,
+ .cmd0csdelay = CMD_DELAY,
+ .cmd0dldiff = DDR2_DLL_LOCK_DIFF,
+ .cmd0iclkout = DDR2_INVERT_CLKOUT,
- cmd.cmd0csratio = DDR2_RATIO;
- cmd.cmd0csforce = CMD_FORCE;
- cmd.cmd0csdelay = CMD_DELAY;
- cmd.cmd0dldiff = DDR2_DLL_LOCK_DIFF;
- cmd.cmd0iclkout = DDR2_INVERT_CLKOUT;
+ .cmd1csratio = DDR2_RATIO,
+ .cmd1csforce = CMD_FORCE,
+ .cmd1csdelay = CMD_DELAY,
+ .cmd1dldiff = DDR2_DLL_LOCK_DIFF,
+ .cmd1iclkout = DDR2_INVERT_CLKOUT,
- cmd.cmd1csratio = DDR2_RATIO;
- cmd.cmd1csforce = CMD_FORCE;
- cmd.cmd1csdelay = CMD_DELAY;
- cmd.cmd1dldiff = DDR2_DLL_LOCK_DIFF;
- cmd.cmd1iclkout = DDR2_INVERT_CLKOUT;
-
- cmd.cmd2csratio = DDR2_RATIO;
- cmd.cmd2csforce = CMD_FORCE;
- cmd.cmd2csdelay = CMD_DELAY;
- cmd.cmd2dldiff = DDR2_DLL_LOCK_DIFF;
- cmd.cmd2iclkout = DDR2_INVERT_CLKOUT;
-
- config_cmd_ctrl(&cmd);
-
-}
+ .cmd2csratio = DDR2_RATIO,
+ .cmd2csforce = CMD_FORCE,
+ .cmd2csdelay = CMD_DELAY,
+ .cmd2dldiff = DDR2_DLL_LOCK_DIFF,
+ .cmd2iclkout = DDR2_INVERT_CLKOUT,
+};
static void config_vtp(void)
{
@@ -156,18 +145,16 @@ static void config_emif_ddr2(void)
void config_ddr(void)
{
- int data_macro_0 = 0;
- int data_macro_1 = 1;
struct ddr_ioctrl ioctrl;
enable_emif_clocks();
config_vtp();
- cmd_macro_config();
+ config_cmd_ctrl(&ddr2_cmd_ctrl_data);
- data_macro_config(data_macro_0);
- data_macro_config(data_macro_1);
+ config_ddr_data(0, &ddr2_data);
+ config_ddr_data(1, &ddr2_data);
writel(PHY_RANK0_DELAY, &ddrregs->dt0rdelays0);
writel(PHY_RANK0_DELAY, &ddrregs->dt1rdelays0);
diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
index c62f826f7..087082f3e 100644
--- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h
+++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
@@ -190,12 +190,12 @@ struct ddr_data {
/**
* Configure DDR CMD control registers
*/
-int config_cmd_ctrl(struct cmd_control *cmd);
+int config_cmd_ctrl(const struct cmd_control *cmd);
/**
* Configure DDR DATA registers
*/
-int config_ddr_data(int data_macrono, struct ddr_data *data);
+int config_ddr_data(int data_macrono, const struct ddr_data *data);
/**
* This structure represents the DDR io control on AM33XX devices.
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 03:17:27 +0000