aboutsummaryrefslogtreecommitdiffstats
path: root/package/uboot-xburst/files/cpu/mips/jz_mmc.h
diff options
context:
space:
mode:
Diffstat (limited to 'package/uboot-xburst/files/cpu/mips/jz_mmc.h')
-rw-r--r--package/uboot-xburst/files/cpu/mips/jz_mmc.h113
1 files changed, 113 insertions, 0 deletions
diff --git a/package/uboot-xburst/files/cpu/mips/jz_mmc.h b/package/uboot-xburst/files/cpu/mips/jz_mmc.h
new file mode 100644
index 0000000000..0c7b70ff8a
--- /dev/null
+++ b/package/uboot-xburst/files/cpu/mips/jz_mmc.h
@@ -0,0 +1,113 @@
+/*
+ * linux/drivers/mmc/jz_mmc.h
+ *
+ * Author: Vladimir Shebordaev, Igor Oblakov
+ * Copyright: MontaVista Software Inc.
+ *
+ * $Id: jz_mmc.h,v 1.3 2007-06-15 08:04:20 jlwei Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __MMC_JZMMC_H__
+#define __MMC_JZMMC_H__
+
+#include "mmc_protocol.h"
+
+#define MMC_DEBUG_LEVEL 0 /* Enable Debug: 0 - no debug */
+
+#define MMC_BLOCK_SIZE 512 /* MMC/SD Block Size */
+
+#define ID_TO_RCA(x) ((x)+1)
+
+#define MMC_OCR_ARG 0x00ff8000 /* Argument of OCR */
+
+enum mmc_result_t {
+ MMC_NO_RESPONSE = -1,
+ MMC_NO_ERROR = 0,
+ MMC_ERROR_OUT_OF_RANGE,
+ MMC_ERROR_ADDRESS,
+ MMC_ERROR_BLOCK_LEN,
+ MMC_ERROR_ERASE_SEQ,
+ MMC_ERROR_ERASE_PARAM,
+ MMC_ERROR_WP_VIOLATION,
+ MMC_ERROR_CARD_IS_LOCKED,
+ MMC_ERROR_LOCK_UNLOCK_FAILED,
+ MMC_ERROR_COM_CRC,
+ MMC_ERROR_ILLEGAL_COMMAND,
+ MMC_ERROR_CARD_ECC_FAILED,
+ MMC_ERROR_CC,
+ MMC_ERROR_GENERAL,
+ MMC_ERROR_UNDERRUN,
+ MMC_ERROR_OVERRUN,
+ MMC_ERROR_CID_CSD_OVERWRITE,
+ MMC_ERROR_STATE_MISMATCH,
+ MMC_ERROR_HEADER_MISMATCH,
+ MMC_ERROR_TIMEOUT,
+ MMC_ERROR_CRC,
+ MMC_ERROR_DRIVER_FAILURE,
+};
+
+/* the information structure of MMC/SD Card */
+typedef struct MMC_INFO
+{
+ int id; /* Card index */
+ int sd; /* MMC or SD card */
+ int rca; /* RCA */
+ u32 scr; /* SCR 63:32*/
+ int flags; /* Ejected, inserted */
+ enum card_state state; /* empty, ident, ready, whatever */
+
+ /* Card specific information */
+ struct mmc_cid cid;
+ struct mmc_csd csd;
+ u32 block_num;
+ u32 block_len;
+ u32 erase_unit;
+} mmc_info;
+
+mmc_info mmcinfo;
+
+struct mmc_request {
+ int index; /* Slot index - used for CS lines */
+ int cmd; /* Command to send */
+ u32 arg; /* Argument to send */
+ enum mmc_rsp_t rtype; /* Response type expected */
+
+ /* Data transfer (these may be modified at the low level) */
+ u16 nob; /* Number of blocks to transfer*/
+ u16 block_len; /* Block length */
+ u8 *buffer; /* Data buffer */
+ u32 cnt; /* Data length, for PIO */
+
+ /* Results */
+ u8 response[18]; /* Buffer to store response - CRC is optional */
+ enum mmc_result_t result;
+};
+
+char * mmc_result_to_string(int);
+int mmc_unpack_csd(struct mmc_request *request, struct mmc_csd *csd);
+int mmc_unpack_r1(struct mmc_request *request, struct mmc_response_r1 *r1, enum card_state state);
+int mmc_unpack_r6(struct mmc_request *request, struct mmc_response_r1 *r1, enum card_state state, int *rca);
+int mmc_unpack_scr(struct mmc_request *request, struct mmc_response_r1 *r1, enum card_state state, u32 *scr);
+int mmc_unpack_cid(struct mmc_request *request, struct mmc_cid *cid);
+int mmc_unpack_r3(struct mmc_request *request, struct mmc_response_r3 *r3);
+
+void mmc_send_cmd(struct mmc_request *request, int cmd, u32 arg,
+ u16 nob, u16 block_len, enum mmc_rsp_t rtype, u8 *buffer);
+u32 mmc_tran_speed(u8 ts);
+void jz_mmc_set_clock(int sd, u32 rate);
+void jz_mmc_hardware_init(void);
+
+static inline void mmc_simple_cmd(struct mmc_request *request, int cmd, u32 arg, enum mmc_rsp_t rtype)
+{
+ mmc_send_cmd( request, cmd, arg, 0, 0, rtype, 0);
+}
+
+int mmc_legacy_init(int verbose);
+int mmc_read(ulong src, uchar *dst, int size);
+int mmc_write(uchar *src, ulong dst, int size);
+int mmc2info(ulong addr);
+
+#endif /* __MMC_JZMMC_H__ */