arm: mvebu: Add support for NAND interface on A-38x
The NAND interface on the Armada-38x series is similar to that on the
Armada-XP. The key difference is that the NAND ECC clock ratio is
provided via the DFX Server registers instead of the Core Clock.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c
index fd66f59..5eb2a39 100644
--- a/arch/arm/mach-mvebu/cpu.c
+++ b/arch/arm/mach-mvebu/cpu.c
@@ -452,8 +452,15 @@
u32 mvebu_get_nand_clock(void)
{
+ u32 reg;
+
+ if (mvebu_soc_family() == MVEBU_SOC_A38X)
+ reg = MVEBU_DFX_DIV_CLK_CTRL(1);
+ else
+ reg = MVEBU_CORE_DIV_CLK_CTRL(1);
+
return CONFIG_SYS_MVEBU_PLL_CLOCK /
- ((readl(MVEBU_CORE_DIV_CLK_CTRL(1)) &
+ ((readl(reg) &
NAND_ECC_DIVCKL_RATIO_MASK) >> NAND_ECC_DIVCKL_RATIO_OFFS);
}