Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Changes since v5: - Use iomuxc as the base struct for IOMUXC_BASE_ADDR Changes since v4: - No changes Changes since v3: - Print the chip size in the case of error
arch/arm/cpu/armv7/mx5/soc.c | 30 +++++++++++++++++++++++++++++ arch/arm/include/asm/arch-mx5/imx-regs.h | 5 ++++ arch/arm/include/asm/arch-mx5/sys_proto.h | 2 +- 3 files changed, 36 insertions(+), 1 deletions(-)
diff --git a/arch/arm/cpu/armv7/mx5/soc.c b/arch/arm/cpu/armv7/mx5/soc.c index 40b8b56..e599df8 100644 --- a/arch/arm/cpu/armv7/mx5/soc.c +++ b/arch/arm/cpu/armv7/mx5/soc.c @@ -163,6 +163,36 @@ int cpu_mmc_init(bd_t *bis) #endif }
+void set_chipselect_size(int const cs_size) +{ + unsigned int reg; + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + reg = readl(&iomuxc_regs->gpr1); + + switch (cs_size) { + case CS0_128: + reg &= ~0x7; /* CS0=128MB, CS1=0, CS2=0, CS3=0 */ + reg |= 0x5; + break; + case CS0_64M_CS1_64M: + reg &= ~0x3F; /* CS0=64MB, CS1=64MB, CS2=0, CS3=0 */ + reg |= 0x1B; + break; + case CS0_64M_CS1_32M_CS2_32M: + reg &= ~0x1FF; /* CS0=64MB, CS1=32MB, CS2=32MB, CS3=0 */ + reg |= 0x4B; + break; + case CS0_32M_CS1_32M_CS2_32M_CS3_32M: + reg &= ~0xFFF; /* CS0=32MB, CS1=32MB, CS2=32MB, CS3=32MB */ + reg |= 0x249; + break; + default: + printf("Unknown chip select size: %d\n", cs_size); + break; + } + + writel(reg, &iomuxc_regs->gpr1); +}
void reset_cpu(ulong addr) { diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h index 9d2046a..5163614 100644 --- a/arch/arm/include/asm/arch-mx5/imx-regs.h +++ b/arch/arm/include/asm/arch-mx5/imx-regs.h @@ -214,6 +214,11 @@ #define WDOG_EN(x) ((x) << 8) #define WDOG_LIMIT(x) (((x) & 0x3) << 9)
+#define CS0_128 0 +#define CS0_64M_CS1_64M 1 +#define CS0_64M_CS1_32M_CS2_32M 2 +#define CS0_32M_CS1_32M_CS2_32M_CS3_32M 3 + /* * Number of GPIO pins per port */ diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h b/arch/arm/include/asm/arch-mx5/sys_proto.h index f687503..ce63675 100644 --- a/arch/arm/include/asm/arch-mx5/sys_proto.h +++ b/arch/arm/include/asm/arch-mx5/sys_proto.h @@ -27,5 +27,5 @@ u32 get_cpu_rev(void); #define is_soc_rev(rev) ((get_cpu_rev() & 0xFF) - rev) void sdelay(unsigned long); - +void set_chipselect_size(int const); #endif