arm, at91: compile mpddrc ram init code also for AT91SAM9M10G45

- compile mpddrc ram init code also for AT91SAM9M10G45
  based boards.
- in CONFIG_SAMA5D3 case, look for the ATMEL_MPDDRC_CR_DECOD_INTERLEAVED
  in the cr configuration

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

diff --git a/arch/arm/cpu/at91-common/Makefile b/arch/arm/cpu/at91-common/Makefile
index 5b978384ebace2096c2e2c42a6398061a65eae42..f62863a94d4c1f206d12c1746dbd619ad8b09341 100644 (file)
--- a/arch/arm/cpu/at91-common/Makefile
+++ b/arch/arm/cpu/at91-common/Makefile
@@ -9,4 +9,8 @@
 #
 
 obj-$(CONFIG_AT91_WANTS_COMMON_PHY) += phy.o
-obj-$(CONFIG_SPL_BUILD) += mpddrc.o spl.o
+ifneq ($(CONFIG_SPL_BUILD),)
+obj-$(CONFIG_AT91SAM9M10G45) += mpddrc.o
+obj-$(CONFIG_SAMA5D3) += mpddrc.o
+obj-y += spl.o
+endif

diff --git a/arch/arm/cpu/at91-common/mpddrc.c b/arch/arm/cpu/at91-common/mpddrc.c
index f78e4be6a6b5df89111b3a80e467d3a01fdcce44..44798e612c3b2e04cb456aa1c85b09429baa8ec9 100644 (file)
--- a/arch/arm/cpu/at91-common/mpddrc.c
+++ b/arch/arm/cpu/at91-common/mpddrc.c
@@ -17,6 +17,15 @@ static inline void atmel_mpddr_op(int mode, u32 ram_address)
        writel(0, ram_address);
 }
 
+static int ddr2_decodtype_is_seq(u32 cr)
+{
+#if defined(CONFIG_SAMA5D3)
+       if (cr & ATMEL_MPDDRC_CR_DECOD_INTERLEAVED)
+               return 0;
+#endif
+       return 1;
+}
+
 int ddr2_init(const unsigned int ram_address,
              const struct atmel_mpddr *mpddr_value)
 {
@@ -25,7 +34,7 @@ int ddr2_init(const unsigned int ram_address,
 
        /* Compute bank offset according to NC in configuration register */
        ba_off = (mpddr_value->cr & ATMEL_MPDDRC_CR_NC_MASK) + 9;
-       if (!(mpddr_value->cr & ATMEL_MPDDRC_CR_DECOD_INTERLEAVED))
+       if (ddr2_decodtype_is_seq(mpddr_value->cr))
                ba_off += ((mpddr_value->cr & ATMEL_MPDDRC_CR_NR_MASK) >> 2) + 11;
 
        ba_off += (mpddr_value->md & ATMEL_MPDDRC_MD_DBW_MASK) ? 1 : 2;