diff options
Diffstat (limited to 'arch/arm/cpu/armv7/am33xx/emif4.c')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/emif4.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index 59ad25c5b0..d28fceb75c 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -48,6 +48,11 @@ static struct vtp_reg *vtpreg[2] = { #ifdef CONFIG_AM33XX static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; #endif +#ifdef CONFIG_AM43XX +static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; +static struct cm_device_inst *cm_device = + (struct cm_device_inst *)CM_DEVICE_INST; +#endif #ifdef CONFIG_TI81XX void config_dmm(const struct dmm_lisa_map_regs *regs) @@ -87,7 +92,7 @@ void __weak ddr_pll_config(unsigned int ddrpll_m) { } -void config_ddr(unsigned int pll, unsigned int ioctrl, +void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs, const struct ddr_data *data, const struct cmd_control *ctrl, const struct emif_regs *regs, int nr) { @@ -99,7 +104,18 @@ void config_ddr(unsigned int pll, unsigned int ioctrl, config_ddr_data(data, nr); #ifdef CONFIG_AM33XX - config_io_ctrl(ioctrl); + config_io_ctrl(ioregs); + + /* Set CKE to be controlled by EMIF/DDR PHY */ + writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl); +#endif +#ifdef CONFIG_AM43XX + writel(readl(&cm_device->cm_dll_ctrl) & ~0x1, &cm_device->cm_dll_ctrl); + while ((readl(&cm_device->cm_dll_ctrl) && CM_DLL_READYST) == 0) + ; + writel(0x0, &ddrctrl->ddrioctrl); + + config_io_ctrl(ioregs); /* Set CKE to be controlled by EMIF/DDR PHY */ writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl); @@ -108,6 +124,9 @@ void config_ddr(unsigned int pll, unsigned int ioctrl, /* Program EMIF instance */ config_ddr_phy(regs, nr); set_sdram_timings(regs, nr); - config_sdram(regs, nr); + if (get_emif_rev(EMIF1_BASE) == EMIF_4D5) + config_sdram_emif4d5(regs, nr); + else + config_sdram(regs, nr); } #endif |