diff options
Diffstat (limited to 'include/linux/spi')
| -rw-r--r-- | include/linux/spi/mxs-spi.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/include/linux/spi/mxs-spi.h b/include/linux/spi/mxs-spi.h new file mode 100644 index 000000000000..b7ccd577f758 --- /dev/null +++ b/include/linux/spi/mxs-spi.h @@ -0,0 +1,109 @@ +/* + * include/linux/spi/mxs-spi.h + * + * Freescale i.MX233/i.MX28 SPI controller register definition + * + * Copyright 2008 Embedded Alley Solutions, Inc. + * Copyright 2009-2011 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef __LINUX_SPI_MXS_SPI_H__ +#define __LINUX_SPI_MXS_SPI_H__ + +#define ssp_is_old(host) ((host)->devid == IMX23_MMC) + +/* SSP registers */ +#define HW_SSP_CTRL0 0x000 +#define BM_SSP_CTRL0_RUN (1 << 29) +#define BM_SSP_CTRL0_SDIO_IRQ_CHECK (1 << 28) +#define BM_SSP_CTRL0_IGNORE_CRC (1 << 26) +#define BM_SSP_CTRL0_READ (1 << 25) +#define BM_SSP_CTRL0_DATA_XFER (1 << 24) +#define BP_SSP_CTRL0_BUS_WIDTH 22 +#define BM_SSP_CTRL0_BUS_WIDTH (0x3 << 22) +#define BM_SSP_CTRL0_WAIT_FOR_IRQ (1 << 21) +#define BM_SSP_CTRL0_LONG_RESP (1 << 19) +#define BM_SSP_CTRL0_GET_RESP (1 << 17) +#define BM_SSP_CTRL0_ENABLE (1 << 16) +#define BP_SSP_CTRL0_XFER_COUNT 0 +#define BM_SSP_CTRL0_XFER_COUNT 0xffff +#define HW_SSP_CMD0 0x010 +#define BM_SSP_CMD0_DBL_DATA_RATE_EN (1 << 25) +#define BM_SSP_CMD0_SLOW_CLKING_EN (1 << 22) +#define BM_SSP_CMD0_CONT_CLKING_EN (1 << 21) +#define BM_SSP_CMD0_APPEND_8CYC (1 << 20) +#define BP_SSP_CMD0_BLOCK_SIZE 16 +#define BM_SSP_CMD0_BLOCK_SIZE (0xf << 16) +#define BP_SSP_CMD0_BLOCK_COUNT 8 +#define BM_SSP_CMD0_BLOCK_COUNT (0xff << 8) +#define BP_SSP_CMD0_CMD 0 +#define BM_SSP_CMD0_CMD 0xff +#define HW_SSP_CMD1 0x020 +#define HW_SSP_XFER_SIZE 0x030 +#define HW_SSP_BLOCK_SIZE 0x040 +#define BP_SSP_BLOCK_SIZE_BLOCK_COUNT 4 +#define BM_SSP_BLOCK_SIZE_BLOCK_COUNT (0xffffff << 4) +#define BP_SSP_BLOCK_SIZE_BLOCK_SIZE 0 +#define BM_SSP_BLOCK_SIZE_BLOCK_SIZE 0xf +#define HW_SSP_TIMING(h) (ssp_is_old(h) ? 0x050 : 0x070) +#define BP_SSP_TIMING_TIMEOUT 16 +#define BM_SSP_TIMING_TIMEOUT (0xffff << 16) +#define BP_SSP_TIMING_CLOCK_DIVIDE 8 +#define BM_SSP_TIMING_CLOCK_DIVIDE (0xff << 8) +#define BP_SSP_TIMING_CLOCK_RATE 0 +#define BM_SSP_TIMING_CLOCK_RATE 0xff +#define HW_SSP_CTRL1(h) (ssp_is_old(h) ? 0x060 : 0x080) +#define BM_SSP_CTRL1_SDIO_IRQ (1 << 31) +#define BM_SSP_CTRL1_SDIO_IRQ_EN (1 << 30) +#define BM_SSP_CTRL1_RESP_ERR_IRQ (1 << 29) +#define BM_SSP_CTRL1_RESP_ERR_IRQ_EN (1 << 28) +#define BM_SSP_CTRL1_RESP_TIMEOUT_IRQ (1 << 27) +#define BM_SSP_CTRL1_RESP_TIMEOUT_IRQ_EN (1 << 26) +#define BM_SSP_CTRL1_DATA_TIMEOUT_IRQ (1 << 25) +#define BM_SSP_CTRL1_DATA_TIMEOUT_IRQ_EN (1 << 24) +#define BM_SSP_CTRL1_DATA_CRC_IRQ (1 << 23) +#define BM_SSP_CTRL1_DATA_CRC_IRQ_EN (1 << 22) +#define BM_SSP_CTRL1_FIFO_UNDERRUN_IRQ (1 << 21) +#define BM_SSP_CTRL1_FIFO_UNDERRUN_IRQ_EN (1 << 20) +#define BM_SSP_CTRL1_RECV_TIMEOUT_IRQ (1 << 17) +#define BM_SSP_CTRL1_RECV_TIMEOUT_IRQ_EN (1 << 16) +#define BM_SSP_CTRL1_FIFO_OVERRUN_IRQ (1 << 15) +#define BM_SSP_CTRL1_FIFO_OVERRUN_IRQ_EN (1 << 14) +#define BM_SSP_CTRL1_DMA_ENABLE (1 << 13) +#define BM_SSP_CTRL1_POLARITY (1 << 9) +#define BP_SSP_CTRL1_WORD_LENGTH 4 +#define BM_SSP_CTRL1_WORD_LENGTH (0xf << 4) +#define BP_SSP_CTRL1_SSP_MODE 0 +#define BM_SSP_CTRL1_SSP_MODE 0xf +#define HW_SSP_SDRESP0(h) (ssp_is_old(h) ? 0x080 : 0x0a0) +#define HW_SSP_SDRESP1(h) (ssp_is_old(h) ? 0x090 : 0x0b0) +#define HW_SSP_SDRESP2(h) (ssp_is_old(h) ? 0x0a0 : 0x0c0) +#define HW_SSP_SDRESP3(h) (ssp_is_old(h) ? 0x0b0 : 0x0d0) +#define HW_SSP_STATUS(h) (ssp_is_old(h) ? 0x0c0 : 0x100) +#define BM_SSP_STATUS_CARD_DETECT (1 << 28) +#define BM_SSP_STATUS_SDIO_IRQ (1 << 17) + +#define BF_SSP(value, field) (((value) << BP_SSP_##field) & BM_SSP_##field) + +#define SSP_PIO_NUM 3 + +enum mxs_mmc_id { + IMX23_MMC, + IMX28_MMC, +}; + +#endif /* __LINUX_SPI_MXS_SPI_H__ */ |