diff options
author | Eric Nelson <eric.nelson@boundarydevices.com> | 2012-01-31 07:52:04 +0000 |
---|---|---|
committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-02-27 21:19:23 +0100 |
commit | d5c37c9cc45ee400e0f53ba0e11edc88d6bd630b (patch) | |
tree | 720eb88f961410921eb3e4b2c28da9e27bf38aca /arch/arm/include/asm/arch-mx6/imx-regs.h | |
parent | 08c61a589b75154e274394972acffe71dbdb75c1 (diff) |
mx6q: Add support for ECSPI through mxc_spi driver
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>
Diffstat (limited to 'arch/arm/include/asm/arch-mx6/imx-regs.h')
-rw-r--r-- | arch/arm/include/asm/arch-mx6/imx-regs.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h index 8a9eeb4d1c5..3b5fd25e363 100644 --- a/arch/arm/include/asm/arch-mx6/imx-regs.h +++ b/arch/arm/include/asm/arch-mx6/imx-regs.h @@ -194,6 +194,50 @@ struct src { u32 gpr10; }; +/* ECSPI registers */ +struct cspi_regs { + u32 rxdata; + u32 txdata; + u32 ctrl; + u32 cfg; + u32 intr; + u32 dma; + u32 stat; + u32 period; +}; + +/* + * 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 \ + ECSPI1_BASE_ADDR, \ + ECSPI2_BASE_ADDR, \ + ECSPI3_BASE_ADDR, \ + ECSPI4_BASE_ADDR, \ + ECSPI5_BASE_ADDR + struct iim_regs { u32 ctrl; u32 ctrl_set; |