[U-Boot] [PATCH v2 6/9] am33xx: add dmm support to emif4 library
Matt Porter
mporter at ti.com
Fri Mar 1 02:29:50 CET 2013
Adds a config_dmm() routine to support TI814X DMM configuration.
Signed-off-by: Matt Porter <mporter at ti.com>
Reviewed-by: Tom Rini <trini at ti.com>
---
v2: no changes
---
arch/arm/cpu/armv7/am33xx/emif4.c | 17 +++++++++++++++++
arch/arm/include/asm/arch-am33xx/ddr_defs.h | 5 +++++
2 files changed, 22 insertions(+)
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
index 0c617fa..27547be 100644
--- a/arch/arm/cpu/armv7/am33xx/emif4.c
+++ b/arch/arm/cpu/armv7/am33xx/emif4.c
@@ -44,11 +44,28 @@ void dram_init_banksize(void)
#ifdef CONFIG_SPL_BUILD
+static struct dmm_lisa_map_regs *hw_lisa_map_regs =
+ (struct dmm_lisa_map_regs *)DMM_BASE;
static struct vtp_reg *vtpreg[2] = {
(struct vtp_reg *)VTP0_CTRL_ADDR,
(struct vtp_reg *)VTP1_CTRL_ADDR};
static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
+void config_dmm(const struct dmm_lisa_map_regs *regs)
+{
+ enable_dmm_clocks();
+
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_3);
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_2);
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_1);
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_0);
+
+ writel(regs->dmm_lisa_map_3, &hw_lisa_map_regs->dmm_lisa_map_3);
+ writel(regs->dmm_lisa_map_2, &hw_lisa_map_regs->dmm_lisa_map_2);
+ writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1);
+ writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0);
+}
+
static void config_vtp(int nr)
{
writel(readl(&vtpreg[nr]->vtp0ctrlreg) | VTP_CTRL_ENABLE,
diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
index 1cbadff..15ca4c1 100644
--- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h
+++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
@@ -100,6 +100,11 @@
#define MT41J512M8RH125_IOCTRL_VALUE 0x18B
/**
+ * Configure DMM
+ */
+void config_dmm(const struct dmm_lisa_map_regs *regs);
+
+/**
* Configure SDRAM
*/
void config_sdram(const struct emif_regs *regs, int nr);
--
1.7.9.5
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