1 files changed, 179 insertions, 0 deletions

diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
new file mode 100644
index 000000000000..6d7eadc9a678
--- /dev/null
+++ b/drivers/mmc/host/mmci.h
@@ -0,0 +1,179 @@
+/*
+ *  linux/drivers/mmc/mmci.h - ARM PrimeCell MMCI PL180/1 driver
+ *
+ *  Copyright (C) 2003 Deep Blue Solutions, Ltd, 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.
+ */
+#define MMCIPOWER               0x000
+#define MCI_PWR_OFF             0x00
+#define MCI_PWR_UP              0x02
+#define MCI_PWR_ON              0x03
+#define MCI_OD                  (1 << 6)
+#define MCI_ROD                 (1 << 7)
+
+#define MMCICLOCK               0x004
+#define MCI_CLK_ENABLE          (1 << 8)
+#define MCI_CLK_PWRSAVE         (1 << 9)
+#define MCI_CLK_BYPASS          (1 << 10)
+
+#define MMCIARGUMENT            0x008
+#define MMCICOMMAND             0x00c
+#define MCI_CPSM_RESPONSE       (1 << 6)
+#define MCI_CPSM_LONGRSP        (1 << 7)
+#define MCI_CPSM_INTERRUPT      (1 << 8)
+#define MCI_CPSM_PENDING        (1 << 9)
+#define MCI_CPSM_ENABLE         (1 << 10)
+
+#define MMCIRESPCMD             0x010
+#define MMCIRESPONSE0           0x014
+#define MMCIRESPONSE1           0x018
+#define MMCIRESPONSE2           0x01c
+#define MMCIRESPONSE3           0x020
+#define MMCIDATATIMER           0x024
+#define MMCIDATALENGTH          0x028
+#define MMCIDATACTRL            0x02c
+#define MCI_DPSM_ENABLE         (1 << 0)
+#define MCI_DPSM_DIRECTION      (1 << 1)
+#define MCI_DPSM_MODE           (1 << 2)
+#define MCI_DPSM_DMAENABLE      (1 << 3)
+
+#define MMCIDATACNT             0x030
+#define MMCISTATUS              0x034
+#define MCI_CMDCRCFAIL          (1 << 0)
+#define MCI_DATACRCFAIL         (1 << 1)
+#define MCI_CMDTIMEOUT          (1 << 2)
+#define MCI_DATATIMEOUT         (1 << 3)
+#define MCI_TXUNDERRUN          (1 << 4)
+#define MCI_RXOVERRUN           (1 << 5)
+#define MCI_CMDRESPEND          (1 << 6)
+#define MCI_CMDSENT             (1 << 7)
+#define MCI_DATAEND             (1 << 8)
+#define MCI_DATABLOCKEND        (1 << 10)
+#define MCI_CMDACTIVE           (1 << 11)
+#define MCI_TXACTIVE            (1 << 12)
+#define MCI_RXACTIVE            (1 << 13)
+#define MCI_TXFIFOHALFEMPTY     (1 << 14)
+#define MCI_RXFIFOHALFFULL      (1 << 15)
+#define MCI_TXFIFOFULL          (1 << 16)
+#define MCI_RXFIFOFULL          (1 << 17)
+#define MCI_TXFIFOEMPTY         (1 << 18)
+#define MCI_RXFIFOEMPTY         (1 << 19)
+#define MCI_TXDATAAVLBL         (1 << 20)
+#define MCI_RXDATAAVLBL         (1 << 21)
+
+#define MMCICLEAR               0x038
+#define MCI_CMDCRCFAILCLR       (1 << 0)
+#define MCI_DATACRCFAILCLR      (1 << 1)
+#define MCI_CMDTIMEOUTCLR       (1 << 2)
+#define MCI_DATATIMEOUTCLR      (1 << 3)
+#define MCI_TXUNDERRUNCLR       (1 << 4)
+#define MCI_RXOVERRUNCLR        (1 << 5)
+#define MCI_CMDRESPENDCLR       (1 << 6)
+#define MCI_CMDSENTCLR          (1 << 7)
+#define MCI_DATAENDCLR          (1 << 8)
+#define MCI_DATABLOCKENDCLR     (1 << 10)
+
+#define MMCIMASK0               0x03c
+#define MCI_CMDCRCFAILMASK      (1 << 0)
+#define MCI_DATACRCFAILMASK     (1 << 1)
+#define MCI_CMDTIMEOUTMASK      (1 << 2)
+#define MCI_DATATIMEOUTMASK     (1 << 3)
+#define MCI_TXUNDERRUNMASK      (1 << 4)
+#define MCI_RXOVERRUNMASK       (1 << 5)
+#define MCI_CMDRESPENDMASK      (1 << 6)
+#define MCI_CMDSENTMASK         (1 << 7)
+#define MCI_DATAENDMASK         (1 << 8)
+#define MCI_DATABLOCKENDMASK    (1 << 10)
+#define MCI_CMDACTIVEMASK       (1 << 11)
+#define MCI_TXACTIVEMASK        (1 << 12)
+#define MCI_RXACTIVEMASK        (1 << 13)
+#define MCI_TXFIFOHALFEMPTYMASK (1 << 14)
+#define MCI_RXFIFOHALFFULLMASK  (1 << 15)
+#define MCI_TXFIFOFULLMASK      (1 << 16)
+#define MCI_RXFIFOFULLMASK      (1 << 17)
+#define MCI_TXFIFOEMPTYMASK     (1 << 18)
+#define MCI_RXFIFOEMPTYMASK     (1 << 19)
+#define MCI_TXDATAAVLBLMASK     (1 << 20)
+#define MCI_RXDATAAVLBLMASK     (1 << 21)
+
+#define MMCIMASK1               0x040
+#define MMCIFIFOCNT             0x048
+#define MMCIFIFO                0x080 /* to 0x0bc */
+
+#define MCI_IRQENABLE   \
+        (MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK|     \
+        MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK|       \
+        MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATABLOCKENDMASK)
+
+/*
+ * The size of the FIFO in bytes.
+ */
+#define MCI_FIFOSIZE    (16*4)
+        
+#define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2)
+
+#define NR_SG           16
+
+struct clk;
+
+struct mmci_host {
+        void __iomem            *base;
+        struct mmc_request      *mrq;
+        struct mmc_command      *cmd;
+        struct mmc_data         *data;
+        struct mmc_host         *mmc;
+        struct clk              *clk;
+
+        unsigned int            data_xfered;
+
+        spinlock_t              lock;
+
+        unsigned int            mclk;
+        unsigned int            cclk;
+        u32                     pwr;
+        struct mmc_platform_data *plat;
+
+        struct timer_list       timer;
+        unsigned int            oldstat;
+
+        unsigned int            sg_len;
+
+        /* pio stuff */
+        struct scatterlist      *sg_ptr;
+        unsigned int            sg_off;
+        unsigned int            size;
+};
+
+static inline void mmci_init_sg(struct mmci_host *host, struct mmc_data *data)
+{
+        /*
+         * Ideally, we want the higher levels to pass us a scatter list.
+         */
+        host->sg_len = data->sg_len;
+        host->sg_ptr = data->sg;
+        host->sg_off = 0;
+}
+
+static inline int mmci_next_sg(struct mmci_host *host)
+{
+        host->sg_ptr++;
+        host->sg_off = 0;
+        return --host->sg_len;
+}
+
+static inline char *mmci_kmap_atomic(struct mmci_host *host, unsigned long *flags)
+{
+        struct scatterlist *sg = host->sg_ptr;
+
+        local_irq_save(*flags);
+        return kmap_atomic(sg->page, KM_BIO_SRC_IRQ) + sg->offset;
+}
+
+static inline void mmci_kunmap_atomic(struct mmci_host *host, void *buffer, unsigned long *flags)
+{
+        kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+        local_irq_restore(*flags);
+}