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authorTom Rini <trini@konsulko.com>2016-10-12 08:30:46 -0400
committerTom Rini <trini@konsulko.com>2016-10-12 08:30:46 -0400
commitc14d4b0051df5f569fa33d9937af1db267ed6d34 (patch)
tree77a8104b6c7d79843343f8396a2e8de0e07bbbb6 /arch/arm
parent3c594d34c4addc962b2bd6ed2d16f3ce24ab1627 (diff)
parent55cdcdaad3edb24779b76716d5cf9c36db2fed44 (diff)
Merge branch 'master' of http://git.denx.de/u-boot-sunxi
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-sunxi/dram_sun8i_h3.c64
1 files changed, 43 insertions, 21 deletions
diff --git a/arch/arm/mach-sunxi/dram_sun8i_h3.c b/arch/arm/mach-sunxi/dram_sun8i_h3.c
index 2020d75fd1..b08b8e67cc 100644
--- a/arch/arm/mach-sunxi/dram_sun8i_h3.c
+++ b/arch/arm/mach-sunxi/dram_sun8i_h3.c
@@ -217,35 +217,57 @@ static void mctl_zq_calibration(struct dram_para *para)
struct sunxi_mctl_ctl_reg * const mctl_ctl =
(struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE;
- int i;
- u16 zq_val[6];
- u8 val;
+ if ((readl(SUNXI_SRAMC_BASE + 0x24) & 0xff) == 0 &&
+ (readl(SUNXI_SRAMC_BASE + 0xf0) & 0x1) == 0) {
+ u32 reg_val;
- writel(0x0a0a0a0a, &mctl_ctl->zqdr[2]);
-
- for (i = 0; i < 6; i++) {
- u8 zq = (CONFIG_DRAM_ZQ >> (i * 4)) & 0xf;
-
- writel((zq << 20) | (zq << 16) | (zq << 12) |
- (zq << 8) | (zq << 4) | (zq << 0),
- &mctl_ctl->zqcr);
+ clrsetbits_le32(&mctl_ctl->zqcr, 0xffff,
+ CONFIG_DRAM_ZQ & 0xffff);
writel(PIR_CLRSR, &mctl_ctl->pir);
mctl_phy_init(PIR_ZCAL);
- zq_val[i] = readl(&mctl_ctl->zqdr[0]) & 0xff;
- writel(REPEAT_BYTE(zq_val[i]), &mctl_ctl->zqdr[2]);
+ reg_val = readl(&mctl_ctl->zqdr[0]);
+ reg_val &= (0x1f << 16) | (0x1f << 0);
+ reg_val |= reg_val << 8;
+ writel(reg_val, &mctl_ctl->zqdr[0]);
- writel(PIR_CLRSR, &mctl_ctl->pir);
- mctl_phy_init(PIR_ZCAL);
+ reg_val = readl(&mctl_ctl->zqdr[1]);
+ reg_val &= (0x1f << 16) | (0x1f << 0);
+ reg_val |= reg_val << 8;
+ writel(reg_val, &mctl_ctl->zqdr[1]);
+ writel(reg_val, &mctl_ctl->zqdr[2]);
+ } else {
+ int i;
+ u16 zq_val[6];
+ u8 val;
- val = readl(&mctl_ctl->zqdr[0]) >> 24;
- zq_val[i] |= bin_to_mgray(mgray_to_bin(val) - 1) << 8;
- }
+ writel(0x0a0a0a0a, &mctl_ctl->zqdr[2]);
+
+ for (i = 0; i < 6; i++) {
+ u8 zq = (CONFIG_DRAM_ZQ >> (i * 4)) & 0xf;
+
+ writel((zq << 20) | (zq << 16) | (zq << 12) |
+ (zq << 8) | (zq << 4) | (zq << 0),
+ &mctl_ctl->zqcr);
- writel((zq_val[1] << 16) | zq_val[0], &mctl_ctl->zqdr[0]);
- writel((zq_val[3] << 16) | zq_val[2], &mctl_ctl->zqdr[1]);
- writel((zq_val[5] << 16) | zq_val[4], &mctl_ctl->zqdr[2]);
+ writel(PIR_CLRSR, &mctl_ctl->pir);
+ mctl_phy_init(PIR_ZCAL);
+
+ zq_val[i] = readl(&mctl_ctl->zqdr[0]) & 0xff;
+ writel(REPEAT_BYTE(zq_val[i]), &mctl_ctl->zqdr[2]);
+
+ writel(PIR_CLRSR, &mctl_ctl->pir);
+ mctl_phy_init(PIR_ZCAL);
+
+ val = readl(&mctl_ctl->zqdr[0]) >> 24;
+ zq_val[i] |= bin_to_mgray(mgray_to_bin(val) - 1) << 8;
+ }
+
+ writel((zq_val[1] << 16) | zq_val[0], &mctl_ctl->zqdr[0]);
+ writel((zq_val[3] << 16) | zq_val[2], &mctl_ctl->zqdr[1]);
+ writel((zq_val[5] << 16) | zq_val[4], &mctl_ctl->zqdr[2]);
+ }
}
static void mctl_set_cr(struct dram_para *para)