ARM: omap3_logic: Add NOR Flash Support for SOM-LV

The DM37 and OMAP35 SOM-LV SOM-LV products both support a NOR
flash part connected to CS2 in addition to the NAND part on CS0.
This patch setups the GPMC timings for the MT28 NOR Flash and
enables the CFI-Flash driver now that the CFI stuff is in Kconfig

Signed-off-by: Adam Ford <aford173@gmail.com>

board/logicpd/omap3som/omap3logic.c

@@ -40,6 +40,22 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#define LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG1	0x00011203
+#define LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG2	0x000A1302
+#define LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG3	0x000F1302
+#define LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG4	0x0A021303
+#define LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG5	0x00120F18
+#define LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG6	0x0A030000
+#define LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG7	0x00000C50
+
+#define LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG1	0x00011203
+#define LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG2	0x00091102
+#define LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG3	0x000D1102
+#define LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG4	0x09021103
+#define LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG5	0x00100D15
+#define LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG6	0x09030000
+#define LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG7	0x00000C50
+
 /* This is only needed until SPL gets OF support */
 #ifdef CONFIG_SPL_BUILD
 static const struct ns16550_platdata omap3logic_serial = {
@@ -220,6 +236,28 @@ int misc_init_r(void)
 	return 0;
 }
 
+#if defined(CONFIG_FLASH_CFI_DRIVER)
+static const u32 gpmc_dm37_c2nor_config[] = {
+	LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG1,
+	LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG2,
+	LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG3,
+	LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG4,
+	LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG5,
+	LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG6,
+	LOGIC_MT28_DM37_ASYNC_GPMC_CONFIG7
+};
+
+static const u32 gpmc_omap35_c2nor_config[] = {
+	LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG1,
+	LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG2,
+	LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG3,
+	LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG4,
+	LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG5,
+	LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG6,
+	LOGIC_MT28_OMAP35_ASYNC_GPMC_CONFIG7
+};
+#endif
+
 /*
  * Routine: board_init
  * Description: Early hardware init.
@@ -230,7 +268,16 @@ int board_init(void)
 
 	/* boot param addr */
 	gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
-
+#if defined(CONFIG_FLASH_CFI_DRIVER)
+	if (get_cpu_family() == CPU_OMAP36XX) {
+		/* Enable CS2 for NOR Flash */
+		enable_gpmc_cs_config(gpmc_dm37_c2nor_config, &gpmc_cfg->cs[2],
+				      0x10000000, GPMC_SIZE_64M);
+	} else {
+		enable_gpmc_cs_config(gpmc_omap35_c2nor_config, &gpmc_cfg->cs[2],
+				      0x10000000, GPMC_SIZE_64M);
+	}
+#endif
 	return 0;
 }
 

configs/omap35_logic_somlv_defconfig

@@ -24,8 +24,8 @@ CONFIG_CMD_SPL_WRITE_SIZE=0x20000
 CONFIG_CMD_NAND=y
 CONFIG_CMD_NAND_LOCK_UNLOCK=y
 CONFIG_CMD_CACHE=y
-CONFIG_MTDIDS_DEFAULT="nand0=omap2-nand.0"
-CONFIG_MTDPARTS_DEFAULT="mtdparts=omap2-nand.0:512k(MLO),1792k(u-boot),128k(spl-os),128k(u-boot-env),6m(kernel),-(fs)"
+CONFIG_MTDIDS_DEFAULT="nand0=omap2-nand.0,nor0=physmap-flash.0"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=omap2-nand.0:512k(MLO),1792k(u-boot),128k(spl-os),128k(u-boot-env),6m(kernel),-(fs);physmap-flash.0:-(nor)"
 CONFIG_CMD_UBI=y
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
@@ -39,6 +39,12 @@ CONFIG_FASTBOOT_BUF_ADDR=0x82000000
 CONFIG_DM_I2C=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_OMAP_HS=y
+CONFIG_MTD_NOR_FLASH=y
+CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_FLASH_CFI_MTD=y
+CONFIG_SYS_FLASH_PROTECTION=y
+CONFIG_SYS_FLASH_CFI=y
 CONFIG_NAND=y
 CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
 CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y

configs/omap3_logic_somlv_defconfig

@@ -20,12 +20,11 @@ CONFIG_CMD_SPL=y
 CONFIG_CMD_SPL_NAND_OFS=0x240000
 CONFIG_CMD_SPL_WRITE_SIZE=0x20000
 # CONFIG_CMD_EEPROM is not set
-# CONFIG_CMD_FLASH is not set
 CONFIG_CMD_NAND=y
 CONFIG_CMD_NAND_LOCK_UNLOCK=y
 CONFIG_CMD_CACHE=y
-CONFIG_MTDIDS_DEFAULT="nand0=omap2-nand.0"
-CONFIG_MTDPARTS_DEFAULT="mtdparts=omap2-nand.0:512k(MLO),1792k(u-boot),128k(spl-os),128k(u-boot-env),6m(kernel),-(fs)"
+CONFIG_MTDIDS_DEFAULT="nand0=omap2-nand.0,nor0=physmap-flash.0"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=omap2-nand.0:512k(MLO),1792k(u-boot),128k(spl-os),128k(u-boot-env),6m(kernel),-(fs);physmap-flash.0:-(nor)"
 CONFIG_CMD_UBI=y
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
@@ -40,6 +39,12 @@ CONFIG_DM_I2C=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_MMC_OMAP36XX_PINS=y
+CONFIG_MTD_NOR_FLASH=y
+CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_FLASH_CFI_MTD=y
+CONFIG_SYS_FLASH_PROTECTION=y
+CONFIG_SYS_FLASH_CFI=y
 CONFIG_NAND=y
 CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
 CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y

include/configs/omap3_logic.h

@@ -183,9 +183,14 @@
 
 /* **** PISMO SUPPORT *** */
 #if defined(CONFIG_CMD_NAND)
-#define CONFIG_SYS_FLASH_BASE		NAND_BASE
+#define CONFIG_SYS_FLASH_BASE		0x10000000
 #endif
 
+#define CONFIG_SYS_MAX_FLASH_SECT	256
+#define CONFIG_SYS_MAX_FLASH_BANKS	1
+#define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_16BIT
+#define CONFIG_SYS_FLASH_SIZE		0x4000000
+
 /* Monitor at start of flash */
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE