ARM: OMAP2+: Prepare to move GPMC to drivers by platform data header

We still need to support platform data for omap3 until it's booting
in device tree only mode. So let's add platform_data/omap-gpmc.h for
that, and a minimal linux/omap-gpmc.h for the save and restore used
by the PM code.

Let's also keep a minimal mach-omap2/gpmc.h still around to avoid
churn on the board-*.c files. Once omap3 boots in device tree only
mode, we can drop mach-omap2/gpmc.h and we can make the data
structures in platform_data/omap-gpmc.h private to the GPMC driver.

Note that we can now also remove gpmc-nand.h and gpmc-onenand.h.

Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-am3517crane.c

@@ -24,6 +24,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/omap-gpmc.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>

arch/arm/mach-omap2/board-cm-t35.c

@@ -25,6 +25,7 @@
 #include <linux/input/matrix_keypad.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/omap-gpmc.h>
 #include <linux/platform_data/gpio-omap.h>
 
 #include <linux/platform_data/at24.h>
@@ -51,8 +52,6 @@
 #include "sdram-micron-mt46h32m32lf-6.h"
 #include "hsmmc.h"
 #include "common-board-devices.h"
-#include "gpmc.h"
-#include "gpmc-nand.h"
 
 #define CM_T35_GPIO_PENDOWN		57
 #define SB_T35_USB_HUB_RESET_GPIO	167

arch/arm/mach-omap2/board-cm-t3517.c

@@ -28,6 +28,7 @@
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
+#include <linux/omap-gpmc.h>
 #include <linux/rtc-v3020.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
@@ -41,7 +42,6 @@
 
 #include "common.h"
 #include <linux/platform_data/mtd-nand-omap2.h>
-#include "gpmc.h"
 
 #include "am35xx.h"
 
@@ -50,7 +50,6 @@
 #include "hsmmc.h"
 #include "common-board-devices.h"
 #include "am35xx-emac.h"
-#include "gpmc-nand.h"
 
 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 static struct gpio_led cm_t3517_leds[] = {

arch/arm/mach-omap2/board-flash.c

@@ -13,6 +13,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/omap-gpmc.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/physmap.h>
 #include <linux/io.h>
@@ -23,8 +24,6 @@
 #include "soc.h"
 #include "common.h"
 #include "board-flash.h"
-#include "gpmc-onenand.h"
-#include "gpmc-nand.h"
 
 #define REG_FPGA_REV			0x10
 #define REG_FPGA_DIP_SWITCH_INPUT2	0x60

arch/arm/mach-omap2/board-flash.h

@@ -12,7 +12,6 @@
  */
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
-#include "gpmc.h"
 
 #define PDC_NOR		1
 #define PDC_NAND	2

arch/arm/mach-omap2/board-n8x0.c

@@ -22,7 +22,6 @@
 #include <linux/spi/spi.h>
 #include <linux/usb/musb.h>
 #include <linux/platform_data/spi-omap2-mcspi.h>
-#include <linux/platform_data/mtd-onenand-omap2.h>
 #include <linux/mfd/menelaus.h>
 #include <sound/tlv320aic3x.h>
 
@@ -32,7 +31,6 @@
 #include "common.h"
 #include "mmc.h"
 #include "soc.h"
-#include "gpmc-onenand.h"
 #include "common-board-devices.h"
 
 #define TUSB6010_ASYNC_CS	1

arch/arm/mach-omap2/board-omap3pandora.c

@@ -24,6 +24,7 @@
 #include <linux/spi/spi.h>
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl.h>
+#include <linux/omap-gpmc.h>
 #include <linux/wl12xx.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand.h>
@@ -51,7 +52,6 @@
 #include "sdram-micron-mt46h32m32lf-6.h"
 #include "hsmmc.h"
 #include "common-board-devices.h"
-#include "gpmc-nand.h"
 
 #define PANDORA_WIFI_IRQ_GPIO		21
 #define PANDORA_WIFI_NRESET_GPIO	23

arch/arm/mach-omap2/board-rx51-peripherals.c

@@ -23,6 +23,7 @@
 #include <linux/regulator/machine.h>
 #include <linux/gpio.h>
 #include <linux/gpio_keys.h>
+#include <linux/omap-gpmc.h>
 #include <linux/mmc/host.h>
 #include <linux/power/isp1704_charger.h>
 #include <linux/platform_data/spi-omap2-mcspi.h>
@@ -54,8 +55,6 @@
 #include "omap-pm.h"
 #include "hsmmc.h"
 #include "common-board-devices.h"
-#include "gpmc.h"
-#include "gpmc-onenand.h"
 #include "soc.h"
 #include "omap-secure.h"
 

arch/arm/mach-omap2/gpmc-nand.c

@@ -12,14 +12,13 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/omap-gpmc.h>
 #include <linux/mtd/nand.h>
 #include <linux/platform_data/mtd-nand-omap2.h>
 
 #include <asm/mach/flash.h>
 
-#include "gpmc.h"
 #include "soc.h"
-#include "gpmc-nand.h"
 
 /* minimum size for IO mapping */
 #define	NAND_IO_SIZE	4

arch/arm/mach-omap2/gpmc-onenand.c

@@ -15,14 +15,13 @@
 #include <linux/platform_device.h>
 #include <linux/mtd/onenand_regs.h>
 #include <linux/io.h>
+#include <linux/omap-gpmc.h>
 #include <linux/platform_data/mtd-onenand-omap2.h>
 #include <linux/err.h>
 
 #include <asm/mach/flash.h>
 
-#include "gpmc.h"
 #include "soc.h"
-#include "gpmc-onenand.h"
 
 #define	ONENAND_IO_SIZE	SZ_128K
 

arch/arm/mach-omap2/gpmc.c

@@ -29,18 +29,17 @@
 #include <linux/of_address.h>
 #include <linux/of_mtd.h>
 #include <linux/of_device.h>
+#include <linux/omap-gpmc.h>
 #include <linux/mtd/nand.h>
 #include <linux/pm_runtime.h>
 
 #include <linux/platform_data/mtd-nand-omap2.h>
-
-#include <asm/mach-types.h>
+#include <linux/platform_data/mtd-onenand-omap2.h>
 
 #include "soc.h"
 #include "omap_device.h"
-#include "gpmc.h"
-#include "gpmc-nand.h"
-#include "gpmc-onenand.h"
+
+#include <asm/mach-types.h>
 
 #define	DEVICE_NAME		"omap-gpmc"
 
@@ -115,6 +114,60 @@
 
 #define GPMC_NR_WAITPINS		4
 
+#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
+
+/* 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_CONFIG1_WRAPBURST_SUPP     (1 << 31)
+#define GPMC_CONFIG1_READMULTIPLE_SUPP  (1 << 30)
+#define GPMC_CONFIG1_READTYPE_ASYNC     (0 << 29)
+#define GPMC_CONFIG1_READTYPE_SYNC      (1 << 29)
+#define GPMC_CONFIG1_WRITEMULTIPLE_SUPP (1 << 28)
+#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_MUXTYPE(val)       ((val & 3) << 8)
+#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))
+#define GPMC_CONFIG7_CSVALID		(1 << 6)
+
+#define GPMC_DEVICETYPE_NOR		0
+#define GPMC_DEVICETYPE_NAND		2
+#define GPMC_CONFIG_WRITEPROTECT	0x00000010
+#define WR_RD_PIN_MONITORING		0x00600000
+
+#define GPMC_ENABLE_IRQ		0x0000000d
+
+/* 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 */
+
 /* XXX: Only NAND irq has been considered,currently these are the only ones used
  */
 #define	GPMC_NR_IRQ		2