Patchwork [U-Boot,16/17] am33xx: Rework config_io_ctrl slightly

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Submitter Tom Rini
Date July 30, 2012, 4:49 p.m.
Message ID <1343666943-25378-17-git-send-email-trini@ti.com>
Download mbox | patch
Permalink /patch/174059/
State Accepted
Commit 5ac3b7ada1573a8d0a6c17ce4b86ed56f77f637a
Delegated to: Tom Rini
Headers show

Comments

Tom Rini - July 30, 2012, 4:49 p.m.
This function sets a number of related registers to the same value (the
registers in question all have the same field descriptions and are
related in operation).  Rather than defining a struct and setting the
value repeatedly, just pass in the value.

Signed-off-by: Tom Rini <trini@ti.com>
---
 arch/arm/cpu/armv7/am33xx/ddr.c             |   12 ++++++------
 arch/arm/cpu/armv7/am33xx/emif4.c           |   10 +---------
 arch/arm/include/asm/arch-am33xx/ddr_defs.h |   13 +------------
 3 files changed, 8 insertions(+), 27 deletions(-)

Patch

diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c
index 993f3da..597d62f 100644
--- a/arch/arm/cpu/armv7/am33xx/ddr.c
+++ b/arch/arm/cpu/armv7/am33xx/ddr.c
@@ -120,11 +120,11 @@  void config_ddr_data(int macrono, const struct ddr_data *data)
 	writel(data->datadldiff0, &ddr_reg[macrono]->dt0dldiff0);
 }
 
-void config_io_ctrl(struct ddr_ioctrl *ioctrl)
+void config_io_ctrl(unsigned long val)
 {
-	writel(ioctrl->cmd1ctl, &ioctrl_reg->cm0ioctl);
-	writel(ioctrl->cmd2ctl, &ioctrl_reg->cm1ioctl);
-	writel(ioctrl->cmd3ctl, &ioctrl_reg->cm2ioctl);
-	writel(ioctrl->data1ctl, &ioctrl_reg->dt0ioctl);
-	writel(ioctrl->data2ctl, &ioctrl_reg->dt1ioctl);
+	writel(val, &ioctrl_reg->cm0ioctl);
+	writel(val, &ioctrl_reg->cm1ioctl);
+	writel(val, &ioctrl_reg->cm2ioctl);
+	writel(val, &ioctrl_reg->dt0ioctl);
+	writel(val, &ioctrl_reg->dt1ioctl);
 }
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
index 0190ec6..3219045 100644
--- a/arch/arm/cpu/armv7/am33xx/emif4.c
+++ b/arch/arm/cpu/armv7/am33xx/emif4.c
@@ -116,8 +116,6 @@  static void config_vtp(void)
 
 void config_ddr(short ddr_type)
 {
-	struct ddr_ioctrl ioctrl;
-
 	enable_emif_clocks();
 
 	if (ddr_type == EMIF_REG_SDRAM_TYPE_DDR2) {
@@ -132,13 +130,7 @@  void config_ddr(short ddr_type)
 		writel(DDR2_PHY_RANK0_DELAY, &ddrregs->dt0rdelays0);
 		writel(DDR2_PHY_RANK0_DELAY, &ddrregs->dt1rdelays0);
 
-		ioctrl.cmd1ctl = DDR2_IOCTRL_VALUE;
-		ioctrl.cmd2ctl = DDR2_IOCTRL_VALUE;
-		ioctrl.cmd3ctl = DDR2_IOCTRL_VALUE;
-		ioctrl.data1ctl = DDR2_IOCTRL_VALUE;
-		ioctrl.data2ctl = DDR2_IOCTRL_VALUE;
-
-		config_io_ctrl(&ioctrl);
+		config_io_ctrl(DDR2_IOCTRL_VALUE);
 
 		/* Set CKE to be controlled by EMIF/DDR PHY */
 		writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
index 7806e1b..ebd3077 100644
--- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h
+++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
@@ -174,20 +174,9 @@  struct ddr_cmdtctrl {
 };
 
 /**
- * Encapsulates DDR CMD & DATA io control registers.
- */
-struct ddr_ioctrl {
-	unsigned long cmd1ctl;
-	unsigned long cmd2ctl;
-	unsigned long cmd3ctl;
-	unsigned long data1ctl;
-	unsigned long data2ctl;
-};
-
-/**
  * Configure DDR io control registers
  */
-void config_io_ctrl(struct ddr_ioctrl *ioctrl);
+void config_io_ctrl(unsigned long val);
 
 struct ddr_ctrl {
 	unsigned int ddrioctrl;