diff options
Diffstat (limited to 'arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c b/arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c index 75e9746567..35b6c5e464 100644 --- a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c +++ b/arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c @@ -25,6 +25,7 @@ struct dram_para { u8 rank; u8 rows; u8 bus_width; + u8 dram_type; u16 page_size; }; @@ -34,7 +35,7 @@ static void mctl_set_cr(struct dram_para *para) (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; writel(MCTL_CR_CS1_CONTROL(para->cs1) | MCTL_CR_UNKNOWN | - MCTL_CR_CHANNEL(1) | MCTL_CR_DDR3 | + MCTL_CR_CHANNEL(1) | MCTL_CR_DRAM_TYPE(para->dram_type) | (para->seq ? MCTL_CR_SEQUENCE : 0) | ((para->bus_width == 16) ? MCTL_CR_BUSW16 : MCTL_CR_BUSW8) | MCTL_CR_PAGE_SIZE(para->page_size) | MCTL_CR_ROW(para->rows) | @@ -86,6 +87,7 @@ static void auto_set_timing_para(struct dram_para *para) { struct sunxi_mctl_ctl_reg * const mctl_ctl = (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + u32 reg_val; u8 tccd = 2; @@ -393,6 +395,13 @@ unsigned long sunxi_dram_init(void) .page_size = 2048, }; +#if defined(CONFIG_MACH_SUN8I_A83T) +#if (CONFIG_DRAM_TYPE == 3) || (CONFIG_DRAM_TYPE == 7) + para.dram_type = CONFIG_DRAM_TYPE; +#else +#error Unsupported DRAM type, Please set DRAM type (3:DDR3, 7:LPDDR3) +#endif +#endif setbits_le32(SUNXI_PRCM_BASE + 0x1e0, 0x1 << 8); writel(0, (SUNXI_PRCM_BASE + 0x1e8)); |