ENGR00112273 BBG2: MMC boot support.

BBG2: MMC boot support.

Signed-off-by: Terry Lv <r65388@freescale.com>

1 files changed, 141 insertions, 0 deletions

diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
new file mode 100644
index 0000000..393d587
--- /dev/null
+++ b/include/linux/mmc/card.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ *  linux/include/linux/mmc/card.h
+ *
+ * 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.
+ *
+ *  Card driver specific definitions.
+ */
+#ifndef LINUX_MMC_CARD_H
+#define LINUX_MMC_CARD_H
+
+#include "core.h"
+
+struct mmc_cid {
+	unsigned int		manfid;
+	char			    prod_name[8];
+	unsigned int		serial;
+	union {
+	unsigned short		mmc_id;
+	char				sd_id[2];
+	} oemid;
+	unsigned short		year;
+	unsigned char		hwrev;
+	unsigned char		fwrev;
+	unsigned char		month;
+};
+
+struct mmc_csd {
+	unsigned char		mmca_vsn;
+	unsigned short		cmdclass;
+	unsigned short		tacc_clks;
+	unsigned int		tacc_ns;
+	unsigned int		r2w_factor;
+	unsigned int		max_dtr;
+	unsigned int		read_blkbits;
+	unsigned int		write_blkbits;
+	unsigned int		capacity;
+	unsigned int		read_partial:1,
+				read_misalign:1,
+				write_partial:1,
+				write_misalign:1;
+};
+
+struct mmc_ext_csd {
+	unsigned int		hs_max_dtr;
+	unsigned int		sectors;
+};
+
+struct sd_scr {
+	unsigned char		sda_vsn;
+	unsigned char		bus_widths;
+#define SD_SCR_BUS_WIDTH_1	(1<<0)
+#define SD_SCR_BUS_WIDTH_4	(1<<2)
+};
+
+struct sd_switch_caps {
+	unsigned int		hs_max_dtr;
+};
+
+struct sdio_cccr {
+	unsigned int		sdio_vsn;
+	unsigned int		sd_vsn;
+	unsigned int		multi_block:1,
+				low_speed:1,
+				wide_bus:1,
+				high_power:1,
+				high_speed:1;
+};
+
+struct sdio_cis {
+	unsigned short		vendor;
+	unsigned short		device;
+	unsigned short		blksize;
+	unsigned int		max_dtr;
+};
+
+struct mmc_host;
+struct sdio_func;
+struct sdio_func_tuple;
+
+#define SDIO_MAX_FUNCS		7
+
+/*
+ * MMC device
+ */
+struct mmc_card {
+	unsigned int rca; /* relative card address of device */
+	unsigned int type;	/* card type */
+#define MMC_TYPE_MMC 0  /* MMC card */
+#define MMC_TYPE_SD  1  /* SD card */
+#define MMC_TYPE_SDIO 2 /* SDIO card */
+	unsigned int state; /* (our) card state */
+#define MMC_STATE_PRESENT   (1<<0) /* present in sysfs */
+#define MMC_STATE_READONLY  (1<<1) /* card is read-only */
+#define MMC_STATE_HIGHSPEED (1<<2) /* card is in high speed mode */
+#define MMC_STATE_BLOCKADDR (1<<3) /* card uses block-addressing */
+
+	u32 raw_cid[4]; /* raw card CID */
+	u32 raw_csd[4]; /* raw card CSD */
+	u32 raw_scr[2]; /* raw card SCR */
+	struct mmc_cid cid; /* card identification */
+	struct mmc_csd csd; /* card specific */
+	struct mmc_ext_csd ext_csd; /* mmc v4 extended card specific */
+	struct sd_scr  scr; /* extra SD information */
+	struct sd_switch_caps sw_caps; /* switch (CMD6) caps */
+
+	unsigned int sdio_funcs; /* number of SDIO functions */
+	struct sdio_cccr cccr;   /* common card info */
+	struct sdio_cis  cis;    /* common tuple info */
+	/* SDIO functions (devices) */
+	struct sdio_func *sdio_func[SDIO_MAX_FUNCS];
+	unsigned num_info; /* number of info strings */
+	const char **info; /* info strings */
+	struct sdio_func_tuple *tuples; /* unknown common tuples */
+};
+
+#define mmc_card_mmc(c)  ((c)->type == MMC_TYPE_MMC)
+#define mmc_card_sd(c)   ((c)->type == MMC_TYPE_SD)
+#define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO)
+
+#define mmc_card_present(c)   ((c)->state & MMC_STATE_PRESENT)
+#define mmc_card_readonly(c)  ((c)->state & MMC_STATE_READONLY)
+#define mmc_card_highspeed(c) ((c)->state & MMC_STATE_HIGHSPEED)
+#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
+
+#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
+#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
+#define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
+#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
+
+#define mmc_card_name(c) ((c)->cid.prod_name)
+#define mmc_card_id(c)   ((c)->dev.bus_id)
+
+#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
+#define mmc_get_drvdata(c)  dev_get_drvdata(&(c)->dev)
+#define mmc_set_drvdata(c, d) dev_set_drvdata(&(c)->dev, d)
+
+#endif