This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-arm / arch-omap / gpmc.h

diff --git a/include/asm-arm/arch-omap/gpmc.h b/include/asm-arm/arch-omap/gpmc.h
new file mode 100644 (file)
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+++ b/include/asm-arm/arch-omap/gpmc.h
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+/*
+ * General-Purpose Memory Controller for OMAP2
+ *
+ * Copyright (C) 2005-2006 Nokia Corporation
+ *
+ * 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 __OMAP2_GPMC_H
+#define __OMAP2_GPMC_H
+
+#define GPMC_CS_CONFIG1                0x00
+#define GPMC_CS_CONFIG2                0x04
+#define GPMC_CS_CONFIG3                0x08
+#define GPMC_CS_CONFIG4                0x0c
+#define GPMC_CS_CONFIG5                0x10
+#define GPMC_CS_CONFIG6                0x14
+#define GPMC_CS_CONFIG7                0x18
+#define GPMC_CS_NAND_COMMAND   0x1c
+#define GPMC_CS_NAND_ADDRESS   0x20
+#define GPMC_CS_NAND_DATA      0x24
+
+#define GPMC_CONFIG1_WRAPBURST_SUPP     (1 << 31)
+#define GPMC_CONFIG1_READMULTIPLE_SUPP  (1 << 20)
+#define GPMC_CONFIG1_READTYPE_ASYNC     (0 << 29)
+#define GPMC_CONFIG1_READTYPE_SYNC      (1 << 29)
+#define GPMC_CONFIG1_WRITETYPE_ASYNC    (0 << 27)
+#define GPMC_CONFIG1_WRITETYPE_SYNC     (1 << 27)
+#define GPMC_CONFIG1_CLKACTIVATIONTIME(val) ((val & 3) << 25)
+#define GPMC_CONFIG1_PAGE_LEN(val)      ((val & 3) << 23)
+#define GPMC_CONFIG1_WAIT_READ_MON      (1 << 22)
+#define GPMC_CONFIG1_WAIT_WRITE_MON     (1 << 21)
+#define GPMC_CONFIG1_WAIT_MON_IIME(val) ((val & 3) << 18)
+#define GPMC_CONFIG1_WAIT_PIN_SEL(val)  ((val & 3) << 16)
+#define GPMC_CONFIG1_DEVICESIZE(val)    ((val & 3) << 12)
+#define GPMC_CONFIG1_DEVICESIZE_16      GPMC_CONFIG1_DEVICESIZE(1)
+#define GPMC_CONFIG1_DEVICETYPE(val)    ((val & 3) << 10)
+#define GPMC_CONFIG1_DEVICETYPE_NOR     GPMC_CONFIG1_DEVICETYPE(0)
+#define GPMC_CONFIG1_DEVICETYPE_NAND    GPMC_CONFIG1_DEVICETYPE(1)
+#define GPMC_CONFIG1_MUXADDDATA         (1 << 9)
+#define GPMC_CONFIG1_TIME_PARA_GRAN     (1 << 4)
+#define GPMC_CONFIG1_FCLK_DIV(val)      (val & 3)
+#define GPMC_CONFIG1_FCLK_DIV2          (GPMC_CONFIG1_FCLK_DIV(1))
+#define GPMC_CONFIG1_FCLK_DIV3          (GPMC_CONFIG1_FCLK_DIV(2))
+#define GPMC_CONFIG1_FCLK_DIV4          (GPMC_CONFIG1_FCLK_DIV(3))
+
+/*
+ * Note that all values in this struct are in nanoseconds, while
+ * the register values are in gpmc_fck cycles.
+ */
+struct gpmc_timings {
+       /* Minimum clock period for synchronous mode */
+       u16 sync_clk;
+
+       /* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */
+       u16 cs_on;              /* Assertion time */
+       u16 cs_rd_off;          /* Read deassertion time */
+       u16 cs_wr_off;          /* Write deassertion time */
+
+       /* ADV signal timings corresponding to GPMC_CONFIG3 */
+       u16 adv_on;             /* Assertion time */
+       u16 adv_rd_off;         /* Read deassertion time */
+       u16 adv_wr_off;         /* Write deassertion time */
+
+       /* WE signals timings corresponding to GPMC_CONFIG4 */
+       u16 we_on;              /* WE assertion time */
+       u16 we_off;             /* WE deassertion time */
+
+       /* OE signals timings corresponding to GPMC_CONFIG4 */
+       u16 oe_on;              /* OE assertion time */
+       u16 oe_off;             /* OE deassertion time */
+
+       /* Access time and cycle time timings corresponding to GPMC_CONFIG5 */
+       u16 page_burst_access;  /* Multiple access word delay */
+       u16 access;             /* Start-cycle to first data valid delay */
+       u16 rd_cycle;           /* Total read cycle time */
+       u16 wr_cycle;           /* Total write cycle time */
+};
+
+extern unsigned int gpmc_ns_to_ticks(unsigned int time_ns);
+
+extern void gpmc_cs_write_reg(int cs, int idx, u32 val);
+extern u32 gpmc_cs_read_reg(int cs, int idx);
+extern int gpmc_cs_calc_divider(int cs, unsigned int sync_clk);
+extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t);
+extern unsigned long gpmc_cs_get_base_addr(int cs);
+
+
+#endif