[U-Boot] [PATCH v1 3/4] ARM: vf610: ddrmc: fix initialization completion detection

[Stefan Agner]

From: Stefan Agner <stefan.agner at toradex.com>

The CR80 register has multiple interrupt bits, the code is supposed
to check bit 8 but instead uses a logical and. In most cases this
probably did not affect real operations since at that stage typically
none of the other bits are set.

Signed-off-by: Stefan Agner <stefan.agner at toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
---

 arch/arm/include/asm/arch-vf610/imx-regs.h | 3 ++-
 arch/arm/mach-imx/ddrmc-vf610.c            | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-vf610/imx-regs.h b/arch/arm/include/asm/arch-vf610/imx-regs.h
index b7374bfb8f..f71fbf4e73 100644
--- a/arch/arm/include/asm/arch-vf610/imx-regs.h
+++ b/arch/arm/include/asm/arch-vf610/imx-regs.h
@@ -200,7 +200,8 @@
 #define DDRMC_CR78_Q_FULLNESS(v)			(((v) & 0x7) << 24)
 #define DDRMC_CR78_BUR_ON_FLY_BIT(v)			((v) & 0xf)
 #define DDRMC_CR79_CTLUPD_AREF(v)			(((v) & 0x1) << 24)
-#define DDRMC_CR82_INT_MASK				0x10000000
+#define DDRMC_CR80_MC_INIT_COMPLETE			(1 << 8)
+#define DDRMC_CR82_INT_MASK				(1 << 28)
 #define DDRMC_CR87_ODT_WR_MAPCS0(v)			((v) << 24)
 #define DDRMC_CR87_ODT_RD_MAPCS0(v)			((v) << 16)
 #define DDRMC_CR88_TODTL_CMD(v)				(((v) & 0x1f) << 16)
diff --git a/arch/arm/mach-imx/ddrmc-vf610.c b/arch/arm/mach-imx/ddrmc-vf610.c
index 3d7da1c25e..d121a53898 100644
--- a/arch/arm/mach-imx/ddrmc-vf610.c
+++ b/arch/arm/mach-imx/ddrmc-vf610.c
@@ -231,6 +231,7 @@ void ddrmc_ctrl_init_ddr3(struct ddr3_jedec_timings const *timings,
 	/* all inits done, start the DDR controller */
 	writel(DDRMC_CR00_DRAM_CLASS_DDR3 | DDRMC_CR00_START, &ddrmr->cr[0]);
 
-	while (!(readl(&ddrmr->cr[80]) && 0x100))
+	while (!(readl(&ddrmr->cr[80]) & DDRMC_CR80_MC_INIT_COMPLETE))
 		udelay(10);
+	writel(DDRMC_CR80_MC_INIT_COMPLETE, &ddrmr->cr[81]);
 }
-- 
2.19.1