diff options
| author | Matt Porter <mporter@ti.com> | 2013-03-15 10:07:07 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-03-24 12:49:11 -0400 |
| commit | 4fab8d7bbd5784771594f3d8c38827e7306381c3 (patch) | |
| tree | fd1cbc1257202787089ca0f5e9e0f4d8701852c2 /arch | |
| parent | 8b029f22a6618f9966d2840c5d962646fc0829d6 (diff) | |
am33xx: add dmm support to emif4 library
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/emif4.c | 17 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-am33xx/ddr_defs.h | 5 |
2 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index 76459d81f9..aa84e96173 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 55c61e6598..72156af5c5 100644 --- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h +++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h @@ -101,6 +101,11 @@ #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); |