Move the definitions into separate file so separate SPI driver can be implemented. The SSP controller in MXS can act both as a MMC host and as a SPI host.
Based on previous attempt by: Fabio Estevam <fabio.este...@freescale.com> Signed-off-by: Fabio Estevam <fabio.este...@freescale.com> Signed-off-by: Marek Vasut <ma...@denx.de> Cc: Chris Ball <c...@laptop.org> Cc: Detlev Zundel <d...@denx.de> CC: Dong Aisheng <b29...@freescale.com> Cc: Grant Likely <grant.lik...@secretlab.ca> Cc: Linux ARM kernel <linux-arm-ker...@lists.infradead.org> Cc: Rob Herring <rob.herr...@calxeda.com> CC: Shawn Guo <shawn....@linaro.org> Cc: Stefano Babic <sba...@denx.de> Cc: Wolfgang Denk <w...@denx.de> --- drivers/mmc/host/mxs-mmc.c | 87 ++-------------------------------- include/linux/spi/mxs-spi.h | 109 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 112 insertions(+), 84 deletions(-) create mode 100644 include/linux/spi/mxs-spi.h diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index 93b661d..584f982 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -45,87 +45,10 @@ #include <linux/pinctrl/consumer.h> #include <linux/stmp_device.h> #include <linux/mmc/mxs-mmc.h> +#include <linux/spi/mxs-spi.h> #define DRIVER_NAME "mxs-mmc" -/* card detect polling timeout */ -#define MXS_MMC_DETECT_TIMEOUT (HZ/2) - -#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 MXS_MMC_IRQ_BITS (BM_SSP_CTRL1_SDIO_IRQ | \ BM_SSP_CTRL1_RESP_ERR_IRQ | \ BM_SSP_CTRL1_RESP_TIMEOUT_IRQ | \ @@ -135,12 +58,8 @@ BM_SSP_CTRL1_RECV_TIMEOUT_IRQ | \ BM_SSP_CTRL1_FIFO_OVERRUN_IRQ) -#define SSP_PIO_NUM 3 - -enum mxs_mmc_id { - IMX23_MMC, - IMX28_MMC, -}; +/* card detect polling timeout */ +#define MXS_MMC_DETECT_TIMEOUT (HZ/2) struct mxs_mmc_host { struct mmc_host *mmc; diff --git a/include/linux/spi/mxs-spi.h b/include/linux/spi/mxs-spi.h new file mode 100644 index 0000000..b7ccd57 --- /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__ */ -- 1.7.10 ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ spi-devel-general mailing list spi-devel-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spi-devel-general