ARM: OMAP2+: Add function for configuring GPMC settings

[~andy/linux] / arch / arm / mach-omap2 / gpmc.h

diff --git a/arch/arm/mach-omap2/gpmc.h b/arch/arm/mach-omap2/gpmc.h
index fe0a844d5007a7775cadf78e357b541bbb80b153..ce6ae218f41f59ea68c4cf4afe948d293203775f 100644 (file)
--- a/arch/arm/mach-omap2/gpmc.h
+++ b/arch/arm/mach-omap2/gpmc.h
@@ -58,7 +58,10 @@
 #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_MUXADDDATA         (1 << 9)
+#define GPMC_CONFIG1_MUXTYPE(val)       ((val & 3) << 8)
+#define GPMC_CONFIG1_MUXNONMUX          GPMC_CONFIG1_MUXTYPE(0)
+#define GPMC_CONFIG1_MUXAAD             GPMC_CONFIG1_MUXTYPE(GPMC_MUX_AAD)
+#define GPMC_CONFIG1_MUXADDDATA         GPMC_CONFIG1_MUXTYPE(GPMC_MUX_AD)
 #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))
@@ -73,6 +76,13 @@
 #define GPMC_IRQ_FIFOEVENTENABLE       0x01
 #define GPMC_IRQ_COUNT_EVENT           0x02
 
+#define GPMC_BURST_4                   4       /* 4 word burst */
+#define GPMC_BURST_8                   8       /* 8 word burst */
+#define GPMC_BURST_16                  16      /* 16 word burst */
+#define GPMC_DEVWIDTH_8BIT             1       /* 8-bit device width */
+#define GPMC_DEVWIDTH_16BIT            2       /* 16-bit device width */
+#define GPMC_MUX_AAD                   1       /* Addr-Addr-Data multiplex */
+#define GPMC_MUX_AD                    2       /* Addr-Data multiplex */
 
 /* bool type time settings */
 struct gpmc_bool_timings {
@@ -178,10 +188,6 @@ struct gpmc_device_timings {
        u8 cyc_wpl;     /* write deassertion time in cycles */
        u32 cyc_iaa;    /* initial access time in cycles */
 
-       bool mux;       /* address & data muxed */
-       bool sync_write;/* synchronous write */
-       bool sync_read; /* synchronous read */
-
        /* extra delays */
        bool ce_xdelay;
        bool avd_xdelay;
@@ -189,26 +195,36 @@ struct gpmc_device_timings {
        bool we_xdelay;
 };
 
+struct gpmc_settings {
+       bool burst_wrap;        /* enables wrap bursting */
+       bool burst_read;        /* enables read page/burst mode */
+       bool burst_write;       /* enables write page/burst mode */
+       bool device_nand;       /* device is NAND */
+       bool sync_read;         /* enables synchronous reads */
+       bool sync_write;        /* enables synchronous writes */
+       bool wait_on_read;      /* monitor wait on reads */
+       bool wait_on_write;     /* monitor wait on writes */
+       u32 burst_len;          /* page/burst length */
+       u32 device_width;       /* device bus width (8 or 16 bit) */
+       u32 mux_add_data;       /* multiplex address & data */
+       u32 wait_pin;           /* wait-pin to be used */
+};
+
 extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t,
-                               struct gpmc_device_timings *dev_t);
+                            struct gpmc_settings *gpmc_s,
+                            struct gpmc_device_timings *dev_t);
 
 extern void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs);
 extern int gpmc_get_client_irq(unsigned irq_config);
 
-extern unsigned int gpmc_ns_to_ticks(unsigned int time_ns);
-extern unsigned int gpmc_ps_to_ticks(unsigned int time_ps);
 extern unsigned int gpmc_ticks_to_ns(unsigned int ticks);
-extern unsigned int gpmc_round_ns_to_ticks(unsigned int time_ns);
-extern unsigned long gpmc_get_fclk_period(void);
 
 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_calc_divider(unsigned int sync_clk);
 extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t);
+extern int gpmc_cs_program_settings(int cs, struct gpmc_settings *p);
 extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base);
 extern void gpmc_cs_free(int cs);
-extern int gpmc_cs_set_reserved(int cs, int reserved);
-extern int gpmc_cs_reserved(int cs);
 extern void omap3_gpmc_save_context(void);
 extern void omap3_gpmc_restore_context(void);
 extern int gpmc_cs_configure(int cs, int cmd, int wval);