MMC: S3C24XX MMC/SD driver.

This is the latest S3C MMC/SD driver by Thomas Kleffel
with cleanups as suggested by AKPM done by Ben Dooks.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Kleffel <tk@maintech.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 69 insertions, 0 deletions

diff --git a/drivers/mmc/host/s3cmci.h b/drivers/mmc/host/s3cmci.h
new file mode 100644
index 000000000000..90b8af7d8a46
--- /dev/null
+++ b/drivers/mmc/host/s3cmci.h
@@ -0,0 +1,69 @@
+/*
+ *  linux/drivers/mmc/s3cmci.h - Samsung S3C MCI driver
+ *
+ *  Copyright (C) 2004-2006 Thomas Kleffel, All Rights Reserved.
+ *
+ * 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.
+ */
+
+/* FIXME: DMA Resource management ?! */
+#define S3CMCI_DMA 0
+
+enum s3cmci_waitfor {
+        COMPLETION_NONE,
+        COMPLETION_FINALIZE,
+        COMPLETION_CMDSENT,
+        COMPLETION_RSPFIN,
+        COMPLETION_XFERFINISH,
+        COMPLETION_XFERFINISH_RSPFIN,
+};
+
+struct s3cmci_host {
+        struct platform_device  *pdev;
+        struct mmc_host         *mmc;
+        struct resource         *mem;
+        struct clk              *clk;
+        void __iomem            *base;
+        int                     irq;
+        int                     irq_cd;
+        int                     dma;
+
+        unsigned long           clk_rate;
+        unsigned long           clk_div;
+        unsigned long           real_rate;
+        u8                      prescaler;
+
+        int                     is2440;
+        unsigned                sdiimsk;
+        unsigned                sdidata;
+        int                     dodma;
+        int                     dmatogo;
+
+        struct mmc_request      *mrq;
+        int                     cmd_is_stop;
+
+        spinlock_t              complete_lock;
+        enum s3cmci_waitfor     complete_what;
+
+        int                     dma_complete;
+
+        u32                     pio_sgptr;
+        u32                     pio_words;
+        u32                     pio_count;
+        u32                     *pio_ptr;
+#define XFER_NONE 0
+#define XFER_READ 1
+#define XFER_WRITE 2
+        u32                     pio_active;
+
+        int                     bus_width;
+
+        char                    dbgmsg_cmd[301];
+        char                    dbgmsg_dat[301];
+        char                    *status;
+
+        unsigned int            ccnt, dcnt;
+        struct tasklet_struct   pio_tasklet;
+};