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
--- v4: no changes v3: no changes 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 76459d8..aa84e96 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -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, 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);