From: Konstantin Porotchkin kostap@marvell.com
Implement mvebu_get_nand_clock call for A8K family. This function is used by PXA3XX NAND driver.
Signed-off-by: Konstantin Porotchkin kostap@marvell.com Cc: Stefan Roese sr@denx.de Cc: Igal Liberman igall@marvell.com Cc: Nadav Haklai nadavh@marvell.com --- arch/arm/mach-mvebu/armada8k/cpu.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/arch/arm/mach-mvebu/armada8k/cpu.c b/arch/arm/mach-mvebu/armada8k/cpu.c index 2325e9a..e18ca6b 100644 --- a/arch/arm/mach-mvebu/armada8k/cpu.c +++ b/arch/arm/mach-mvebu/armada8k/cpu.c @@ -110,3 +110,19 @@ void reset_cpu(ulong ignored) reg &= ~(1 << RFU_SW_RESET_OFFSET); writel(reg, RFU_GLOBAL_SW_RST); } + +#ifdef CONFIG_NAND_PXA3XX +/* Return NAND clock in Hz */ +u32 mvebu_get_nand_clock(void) +{ + unsigned long NAND_FLASH_CLK_CTRL = 0xF2440700UL; + unsigned long NF_CLOCK_SEL_MASK = 0x1; + u32 reg; + + reg = readl(NAND_FLASH_CLK_CTRL); + if (reg & NF_CLOCK_SEL_MASK) + return 400 * 1000000; + else + return 250 * 1000000; +} +#endif