board: at91sam9rlek: Use SPI-flash-based AT45xxx DataFlash

To support driver model and device tree, use the SPI-flash-based
AT45xxx DataFlash driver, DataFlash is a kind of SPI flash.
Instead of ATMEL_DATAFLASH_SPI DataFlash older driver that will
be removed in the future.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/at91sam9rl.dtsi

@@ -34,6 +34,7 @@
 		ssc0 = &ssc0;
 		ssc1 = &ssc1;
 		pwm0 = &pwm0;
+		spi0 = &spi0;
 	};
 
 	cpus {

board/atmel/at91sam9rlek/at91sam9rlek.c

@@ -184,9 +184,6 @@ int board_init(void)
 #ifdef CONFIG_CMD_NAND
 	at91sam9rlek_nand_hw_init();
 #endif
-#ifdef CONFIG_HAS_DATAFLASH
-	at91_spi0_hw_init(1 << 0);
-#endif
 #ifdef CONFIG_LCD
 	at91sam9rlek_lcd_hw_init();
 #endif

configs/at91sam9rlek_dataflash_defconfig

@@ -5,7 +5,7 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_DEFAULT_DEVICE_TREE="at91sam9rlek"
 CONFIG_DEBUG_UART=y
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9RL,SYS_USE_DATAFLASH"
-CONFIG_ENV_IS_IN_DATAFLASH=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_BOOTDELAY=3
 # CONFIG_CONSOLE_MUX is not set
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
@@ -19,6 +19,7 @@ CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MMC=y
 CONFIG_CMD_NAND=y
+CONFIG_CMD_SF=y
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
@@ -34,6 +35,10 @@ CONFIG_DM_GPIO=y
 CONFIG_AT91_GPIO=y
 CONFIG_DM_MMC=y
 CONFIG_GENERIC_ATMEL_MCI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_DATAFLASH=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_AT91=y
 CONFIG_DM_SERIAL=y
@@ -43,4 +48,6 @@ CONFIG_DEBUG_UART_CLOCK=100000000
 CONFIG_DEBUG_UART_BOARD_INIT=y
 CONFIG_DEBUG_UART_ANNOUNCE=y
 CONFIG_ATMEL_USART=y
+CONFIG_DM_SPI=y
+CONFIG_ATMEL_SPI=y
 CONFIG_LCD=y

configs/at91sam9rlek_mmc_defconfig

@@ -19,6 +19,7 @@ CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MMC=y
 CONFIG_CMD_NAND=y
+CONFIG_CMD_SF=y
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
@@ -34,6 +35,10 @@ CONFIG_DM_GPIO=y
 CONFIG_AT91_GPIO=y
 CONFIG_DM_MMC=y
 CONFIG_GENERIC_ATMEL_MCI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_DATAFLASH=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_AT91=y
 CONFIG_DM_SERIAL=y
@@ -43,4 +48,6 @@ CONFIG_DEBUG_UART_CLOCK=100000000
 CONFIG_DEBUG_UART_BOARD_INIT=y
 CONFIG_DEBUG_UART_ANNOUNCE=y
 CONFIG_ATMEL_USART=y
+CONFIG_DM_SPI=y
+CONFIG_ATMEL_SPI=y
 CONFIG_LCD=y

configs/at91sam9rlek_nandflash_defconfig

@@ -19,6 +19,7 @@ CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MMC=y
 CONFIG_CMD_NAND=y
+CONFIG_CMD_SF=y
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
@@ -34,6 +35,10 @@ CONFIG_DM_GPIO=y
 CONFIG_AT91_GPIO=y
 CONFIG_DM_MMC=y
 CONFIG_GENERIC_ATMEL_MCI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_DATAFLASH=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_AT91=y
 CONFIG_DM_SERIAL=y
@@ -43,4 +48,6 @@ CONFIG_DEBUG_UART_CLOCK=100000000
 CONFIG_DEBUG_UART_BOARD_INIT=y
 CONFIG_DEBUG_UART_ANNOUNCE=y
 CONFIG_ATMEL_USART=y
+CONFIG_DM_SPI=y
+CONFIG_ATMEL_SPI=y
 CONFIG_LCD=y

include/configs/at91sam9rlek.h

@@ -53,15 +53,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR \
 	(ATMEL_BASE_SRAM + 16 * 1024 - GENERATED_GBL_DATA_SIZE)
 
-/* DataFlash */
-#define CONFIG_ATMEL_DATAFLASH_SPI
-#define CONFIG_HAS_DATAFLASH			1
-#define CONFIG_SYS_MAX_DATAFLASH_BANKS		1
-#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* CS0 */
-#define AT91_SPI_CLK				15000000
-#define DATAFLASH_TCSS				(0x1a << 16)
-#define DATAFLASH_TCHS				(0x1 << 24)
-
 /* NAND flash */
 #ifdef CONFIG_CMD_NAND
 #define CONFIG_NAND_ATMEL
@@ -89,11 +80,13 @@
 #ifdef CONFIG_SYS_USE_DATAFLASH
 
 /* bootstrap + u-boot + env + linux in dataflash on CS0 */
-#define CONFIG_SYS_MONITOR_BASE	(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + 0x8400)
+#define CONFIG_ENV_OFFSET	0x4200
-#define CONFIG_ENV_OFFSET		0x4200
-#define CONFIG_ENV_ADDR		(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
 #define CONFIG_ENV_SIZE		0x4200
-#define CONFIG_BOOTCOMMAND	"cp.b 0xC0084000 0x22000000 0x210000; bootm"
+#define CONFIG_ENV_SECT_SIZE	0x210
+#define CONFIG_ENV_SPI_MAX_HZ	15000000
+#define CONFIG_BOOTCOMMAND	"sf probe 0; " \
+				"sf read 0x22000000 0x84000 0x294000; " \
+				"bootm 0x22000000"
 #define CONFIG_BOOTARGS		"console=ttyS0,115200 " \
 				"root=/dev/mtdblock0 " \
 				"mtdparts=atmel_nand:-(root) "\