diff options
| author | Chris Packham <chris.packham@alliedtelesis.co.nz> | 2016-08-22 12:38:39 +1200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2016-08-26 08:33:21 +0200 |
| commit | d7b4731efd4d4d90224917fca1a09ccf99cd1baa (patch) | |
| tree | 7f87dfbf924cdf0779d31f6958474891be3645b9 | |
| parent | 46fe9eb08812cc27a0d5cd97d97373c14d578fe9 (diff) | |
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>
| -rw-r--r-- | arch/arm/mach-mvebu/cpu.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/include/mach/soc.h | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c index fd66f59392..5eb2a398d1 100644 --- a/arch/arm/mach-mvebu/cpu.c +++ b/arch/arm/mach-mvebu/cpu.c @@ -452,8 +452,15 @@ int arch_cpu_init(void) 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); } diff --git a/arch/arm/mach-mvebu/include/mach/soc.h b/arch/arm/mach-mvebu/include/mach/soc.h index 13c9f29c14..6342cdc35c 100644 --- a/arch/arm/mach-mvebu/include/mach/soc.h +++ b/arch/arm/mach-mvebu/include/mach/soc.h @@ -73,6 +73,7 @@ #define MVEBU_NAND_BASE (MVEBU_REGISTER(0xd0000)) #define MVEBU_SDIO_BASE (MVEBU_REGISTER(0xd8000)) #define MVEBU_LCD_BASE (MVEBU_REGISTER(0xe0000)) +#define MVEBU_DFX_BASE (MVEBU_REGISTER(0xe4000)) #define SOC_COHERENCY_FABRIC_CTRL_REG (MVEBU_REGISTER(0x20200)) #define MBUS_ERR_PROP_EN (1 << 8) @@ -92,6 +93,7 @@ #define SPI_PUP_EN BIT(5) #define MVEBU_CORE_DIV_CLK_CTRL(i) (MVEBU_CLOCK_BASE + ((i) * 0x8)) +#define MVEBU_DFX_DIV_CLK_CTRL(i) (MVEBU_DFX_BASE + 0x250 + ((i) * 0x4)) #define NAND_ECC_DIVCKL_RATIO_OFFS 8 #define NAND_ECC_DIVCKL_RATIO_MASK (0x3F << NAND_ECC_DIVCKL_RATIO_OFFS) |