bfin_sdh.h
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/*
* Blackfin Secure Digital Host (SDH) definitions
*
* Copyright 2008-2010 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef __BFIN_SDH_H__
#define __BFIN_SDH_H__
/* Platform resources */
struct bfin_sd_host {
int dma_chan;
int irq_int0;
int irq_int1;
u16 pin_req[7];
};
/* SDH_COMMAND bitmasks */
#define CMD_IDX 0x3f /* Command Index */
#define CMD_RSP (1 << 6) /* Response */
#define CMD_L_RSP (1 << 7) /* Long Response */
#define CMD_INT_E (1 << 8) /* Command Interrupt */
#define CMD_PEND_E (1 << 9) /* Command Pending */
#define CMD_E (1 << 10) /* Command Enable */
/* SDH_PWR_CTL bitmasks */
#define PWR_ON 0x3 /* Power On */
#define SD_CMD_OD (1 << 6) /* Open Drain Output */
#define ROD_CTL (1 << 7) /* Rod Control */
/* SDH_CLK_CTL bitmasks */
#define CLKDIV 0xff /* MC_CLK Divisor */
#define CLK_E (1 << 8) /* MC_CLK Bus Clock Enable */
#define PWR_SV_E (1 << 9) /* Power Save Enable */
#define CLKDIV_BYPASS (1 << 10) /* Bypass Divisor */
#define WIDE_BUS (1 << 11) /* Wide Bus Mode Enable */
/* SDH_RESP_CMD bitmasks */
#define RESP_CMD 0x3f /* Response Command */
/* SDH_DATA_CTL bitmasks */
#define DTX_E (1 << 0) /* Data Transfer Enable */
#define DTX_DIR (1 << 1) /* Data Transfer Direction */
#define DTX_MODE (1 << 2) /* Data Transfer Mode */
#define DTX_DMA_E (1 << 3) /* Data Transfer DMA Enable */
#define DTX_BLK_LGTH (0xf << 4) /* Data Transfer Block Length */
/* SDH_STATUS bitmasks */
#define CMD_CRC_FAIL (1 << 0) /* CMD CRC Fail */
#define DAT_CRC_FAIL (1 << 1) /* Data CRC Fail */
#define CMD_TIME_OUT (1 << 2) /* CMD Time Out */
#define DAT_TIME_OUT (1 << 3) /* Data Time Out */
#define TX_UNDERRUN (1 << 4) /* Transmit Underrun */
#define RX_OVERRUN (1 << 5) /* Receive Overrun */
#define CMD_RESP_END (1 << 6) /* CMD Response End */
#define CMD_SENT (1 << 7) /* CMD Sent */
#define DAT_END (1 << 8) /* Data End */
#define START_BIT_ERR (1 << 9) /* Start Bit Error */
#define DAT_BLK_END (1 << 10) /* Data Block End */
#define CMD_ACT (1 << 11) /* CMD Active */
#define TX_ACT (1 << 12) /* Transmit Active */
#define RX_ACT (1 << 13) /* Receive Active */
#define TX_FIFO_STAT (1 << 14) /* Transmit FIFO Status */
#define RX_FIFO_STAT (1 << 15) /* Receive FIFO Status */
#define TX_FIFO_FULL (1 << 16) /* Transmit FIFO Full */
#define RX_FIFO_FULL (1 << 17) /* Receive FIFO Full */
#define TX_FIFO_ZERO (1 << 18) /* Transmit FIFO Empty */
#define RX_DAT_ZERO (1 << 19) /* Receive FIFO Empty */
#define TX_DAT_RDY (1 << 20) /* Transmit Data Available */
#define RX_FIFO_RDY (1 << 21) /* Receive Data Available */
/* SDH_STATUS_CLR bitmasks */
#define CMD_CRC_FAIL_STAT (1 << 0) /* CMD CRC Fail Status */
#define DAT_CRC_FAIL_STAT (1 << 1) /* Data CRC Fail Status */
#define CMD_TIMEOUT_STAT (1 << 2) /* CMD Time Out Status */
#define DAT_TIMEOUT_STAT (1 << 3) /* Data Time Out status */
#define TX_UNDERRUN_STAT (1 << 4) /* Transmit Underrun Status */
#define RX_OVERRUN_STAT (1 << 5) /* Receive Overrun Status */
#define CMD_RESP_END_STAT (1 << 6) /* CMD Response End Status */
#define CMD_SENT_STAT (1 << 7) /* CMD Sent Status */
#define DAT_END_STAT (1 << 8) /* Data End Status */
#define START_BIT_ERR_STAT (1 << 9) /* Start Bit Error Status */
#define DAT_BLK_END_STAT (1 << 10) /* Data Block End Status */
/* SDH_MASK0 bitmasks */
#define CMD_CRC_FAIL_MASK (1 << 0) /* CMD CRC Fail Mask */
#define DAT_CRC_FAIL_MASK (1 << 1) /* Data CRC Fail Mask */
#define CMD_TIMEOUT_MASK (1 << 2) /* CMD Time Out Mask */
#define DAT_TIMEOUT_MASK (1 << 3) /* Data Time Out Mask */
#define TX_UNDERRUN_MASK (1 << 4) /* Transmit Underrun Mask */
#define RX_OVERRUN_MASK (1 << 5) /* Receive Overrun Mask */
#define CMD_RESP_END_MASK (1 << 6) /* CMD Response End Mask */
#define CMD_SENT_MASK (1 << 7) /* CMD Sent Mask */
#define DAT_END_MASK (1 << 8) /* Data End Mask */
#define START_BIT_ERR_MASK (1 << 9) /* Start Bit Error Mask */
#define DAT_BLK_END_MASK (1 << 10) /* Data Block End Mask */
#define CMD_ACT_MASK (1 << 11) /* CMD Active Mask */
#define TX_ACT_MASK (1 << 12) /* Transmit Active Mask */
#define RX_ACT_MASK (1 << 13) /* Receive Active Mask */
#define TX_FIFO_STAT_MASK (1 << 14) /* Transmit FIFO Status Mask */
#define RX_FIFO_STAT_MASK (1 << 15) /* Receive FIFO Status Mask */
#define TX_FIFO_FULL_MASK (1 << 16) /* Transmit FIFO Full Mask */
#define RX_FIFO_FULL_MASK (1 << 17) /* Receive FIFO Full Mask */
#define TX_FIFO_ZERO_MASK (1 << 18) /* Transmit FIFO Empty Mask */
#define RX_DAT_ZERO_MASK (1 << 19) /* Receive FIFO Empty Mask */
#define TX_DAT_RDY_MASK (1 << 20) /* Transmit Data Available Mask */
#define RX_FIFO_RDY_MASK (1 << 21) /* Receive Data Available Mask */
/* SDH_FIFO_CNT bitmasks */
#define FIFO_COUNT 0x7fff /* FIFO Count */
/* SDH_E_STATUS bitmasks */
#define SDIO_INT_DET (1 << 1) /* SDIO Int Detected */
#define SD_CARD_DET (1 << 4) /* SD Card Detect */
/* SDH_E_MASK bitmasks */
#define SDIO_MSK (1 << 1) /* Mask SDIO Int Detected */
#define SCD_MSK (1 << 6) /* Mask Card Detect */
/* SDH_CFG bitmasks */
#define CLKS_EN (1 << 0) /* Clocks Enable */
#define SD4E (1 << 2) /* SDIO 4-Bit Enable */
#define MWE (1 << 3) /* Moving Window Enable */
#define SD_RST (1 << 4) /* SDMMC Reset */
#define PUP_SDDAT (1 << 5) /* Pull-up SD_DAT */
#define PUP_SDDAT3 (1 << 6) /* Pull-up SD_DAT3 */
#define PD_SDDAT3 (1 << 7) /* Pull-down SD_DAT3 */
/* SDH_RD_WAIT_EN bitmasks */
#define RWR (1 << 0) /* Read Wait Request */
#endif