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| author | Eric Nelson <eric.nelson@boundarydevices.com> | 2012-01-31 07:52:03 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-02-27 21:19:23 +0100 |
| commit | 08c61a589b75154e274394972acffe71dbdb75c1 (patch) | |
| tree | e170008e780d12ab3d8f37a4892d6211efb59c9f /arch/arm/include/asm/arch-mx5 | |
| parent | 4b3a30e9ae304f1350d7dc17b3e0d2ef90e2b668 (diff) | |
| download | talos-obmc-uboot-08c61a589b75154e274394972acffe71dbdb75c1.tar.gz talos-obmc-uboot-08c61a589b75154e274394972acffe71dbdb75c1.zip | |
mxc_spi: move machine specifics into CPU headers
Move (E)CSPI register declarations into the imx-regs.h files for each supported CPU
Introduce two new macros to control conditional setup
MXC_CSPI - Used for processors with the Configurable Serial Peripheral Interface (MX3x)
MXC_ECSPI - For processors with Enhanced Configurable... (MX5x, MX6x)
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Acked-by: Jason Liu <jason.hui@linaro.org>
Tested-by: Jason Liu <jason.hui@linaro.org>
Diffstat (limited to 'arch/arm/include/asm/arch-mx5')
| -rw-r--r-- | arch/arm/include/asm/arch-mx5/imx-regs.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h index 0ee88d25b7..4fa66587a0 100644 --- a/arch/arm/include/asm/arch-mx5/imx-regs.h +++ b/arch/arm/include/asm/arch-mx5/imx-regs.h @@ -223,6 +223,36 @@ #define CS0_32M_CS1_32M_CS2_32M_CS3_32M 3 /* + * CSPI register definitions + */ +#define MXC_ECSPI +#define MXC_CSPICTRL_EN (1 << 0) +#define MXC_CSPICTRL_MODE (1 << 1) +#define MXC_CSPICTRL_XCH (1 << 2) +#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12) +#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20) +#define MXC_CSPICTRL_PREDIV(x) (((x) & 0xF) << 12) +#define MXC_CSPICTRL_POSTDIV(x) (((x) & 0xF) << 8) +#define MXC_CSPICTRL_SELCHAN(x) (((x) & 0x3) << 18) +#define MXC_CSPICTRL_MAXBITS 0xfff +#define MXC_CSPICTRL_TC (1 << 7) +#define MXC_CSPICTRL_RXOVF (1 << 6) +#define MXC_CSPIPERIOD_32KHZ (1 << 15) +#define MAX_SPI_BYTES 32 + +/* Bit position inside CTRL register to be associated with SS */ +#define MXC_CSPICTRL_CHAN 18 + +/* Bit position inside CON register to be associated with SS */ +#define MXC_CSPICON_POL 4 +#define MXC_CSPICON_PHA 0 +#define MXC_CSPICON_SSPOL 12 +#define MXC_SPI_BASE_ADDRESSES \ + CSPI1_BASE_ADDR, \ + CSPI2_BASE_ADDR, \ + CSPI3_BASE_ADDR, + +/* * Number of GPIO pins per port */ #define GPIO_NUM_PIN 32 |
