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am33xx: add dmm support to emif4 library

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Adds a config_dmm() routine to support TI814X DMM configuration.

Signed-off-by: Matt Porter <mporter@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
This commit is contained in:
Matt Porter 2013-03-15 10:07:07 +00:00 committed by Tom Rini
parent 8b029f22a6
commit 4fab8d7bbd
2 changed files with 22 additions and 0 deletions
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17
arch/arm/cpu/armv7/am33xx/emif4.c
View file

@ -44,6 +44,8 @@ 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};
@ -51,6 +53,21 @@ static struct vtp_reg *vtpreg[2] = {
static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
#endif
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,

5
arch/arm/include/asm/arch-am33xx/ddr_defs.h
View file

@ -100,6 +100,11 @@
#define MT41J512M8RH125_PHY_WR_DATA 0x74
#define MT41J512M8RH125_IOCTRL_VALUE 0x18B
/**
* Configure DMM
*/
void config_dmm(const struct dmm_lisa_map_regs *regs);
/**
* Configure SDRAM
*/