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authorSukumar Ghorai <s-ghorai@ti.com>2010-07-09 09:14:44 +0000
committerTony Lindgren <tony@atomide.com>2010-08-02 15:29:25 +0300
commit948d38e799f0ab87cf8ed9113fcdaaee61acf321 (patch)
tree04a3524066098465a23b28c71d2cbedf8ba6a20c /arch/arm/plat-omap/include/plat
parent055a1b8c9927bc587f293020a54c6cd8e24dfac0 (diff)
omap3 gpmc: functionality enhancement
few functions added in gpmc module and to be used by other drivers like NAND. Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/include/plat')
-rw-r--r--arch/arm/plat-omap/include/plat/gpmc.h39
1 files changed, 36 insertions, 3 deletions
diff --git a/arch/arm/plat-omap/include/plat/gpmc.h b/arch/arm/plat-omap/include/plat/gpmc.h
index 145838a81ef..561c64f5ab5 100644
--- a/arch/arm/plat-omap/include/plat/gpmc.h
+++ b/arch/arm/plat-omap/include/plat/gpmc.h
@@ -27,8 +27,27 @@
#define GPMC_CONFIG 0x50
#define GPMC_STATUS 0x54
-#define GPMC_CS0_BASE 0x60
-#define GPMC_CS_SIZE 0x30
+
+/* Control Commands */
+#define GPMC_CONFIG_RDY_BSY 0x00000001
+#define GPMC_CONFIG_DEV_SIZE 0x00000002
+#define GPMC_CONFIG_DEV_TYPE 0x00000003
+#define GPMC_SET_IRQ_STATUS 0x00000004
+#define GPMC_CONFIG_WP 0x00000005
+
+#define GPMC_GET_IRQ_STATUS 0x00000006
+#define GPMC_PREFETCH_FIFO_CNT 0x00000007 /* bytes available in FIFO for r/w */
+#define GPMC_PREFETCH_COUNT 0x00000008 /* remaining bytes to be read/write*/
+#define GPMC_STATUS_BUFFER 0x00000009 /* 1: buffer is available to write */
+
+#define GPMC_NAND_COMMAND 0x0000000a
+#define GPMC_NAND_ADDRESS 0x0000000b
+#define GPMC_NAND_DATA 0x0000000c
+
+/* ECC commands */
+#define GPMC_ECC_READ 0 /* Reset Hardware ECC for read */
+#define GPMC_ECC_WRITE 1 /* Reset Hardware ECC for write */
+#define GPMC_ECC_READSYN 2 /* Reset before syndrom is read back */
#define GPMC_CONFIG1_WRAPBURST_SUPP (1 << 31)
#define GPMC_CONFIG1_READMULTIPLE_SUPP (1 << 30)
@@ -56,6 +75,14 @@
#define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3))
#define GPMC_CONFIG7_CSVALID (1 << 6)
+#define GPMC_DEVICETYPE_NOR 0
+#define GPMC_DEVICETYPE_NAND 2
+#define GPMC_CONFIG_WRITEPROTECT 0x00000010
+#define GPMC_STATUS_BUFF_EMPTY 0x00000001
+#define WR_RD_PIN_MONITORING 0x00600000
+#define GPMC_PREFETCH_STATUS_FIFO_CNT(val) ((val >> 24) & 0x7F)
+#define GPMC_PREFETCH_STATUS_COUNT(val) (val & 0x00003fff)
+
/*
* Note that all values in this struct are in nanoseconds, while
* the register values are in gpmc_fck cycles.
@@ -108,10 +135,16 @@ extern int gpmc_cs_set_reserved(int cs, int reserved);
extern int gpmc_cs_reserved(int cs);
extern int gpmc_prefetch_enable(int cs, int dma_mode,
unsigned int u32_count, int is_write);
-extern void gpmc_prefetch_reset(void);
+extern int gpmc_prefetch_reset(int cs);
extern int gpmc_prefetch_status(void);
extern void omap3_gpmc_save_context(void);
extern void omap3_gpmc_restore_context(void);
extern void gpmc_init(void);
+extern int gpmc_read_status(int cmd);
+extern int gpmc_cs_configure(int cs, int cmd, int wval);
+extern int gpmc_nand_read(int cs, int cmd);
+extern int gpmc_nand_write(int cs, int cmd, int wval);
+int gpmc_enable_hwecc(int cs, int mode, int dev_width, int ecc_size);
+int gpmc_calculate_ecc(int cs, const u_char *dat, u_char *ecc_code);
#endif