imx6: aristainetos: convert CONFIG_DM_SPI

enable CONFIG_DM_SPI and CONFIG_DM_SPI_FLASH
and get rid of build removal warnings.

define CONFIG_GPIO_ENABLE_SPI_FLASH is not longer
needed, so remove it from config_whitelist.txt

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/board/aristainetos/aristainetos.c b/board/aristainetos/aristainetos.c
index c2218cb..5bb238b 100644
--- a/board/aristainetos/aristainetos.c
+++ b/board/aristainetos/aristainetos.c
@@ -32,7 +32,6 @@
 #include <dm/root.h>
 #include <env.h>
 #include <micrel.h>
-#include <spi.h>
 #include <video.h>
 #include <../drivers/video/imx/ipu.h>
 #if defined(CONFIG_VIDEO_BMP_LOGO)
@@ -45,9 +44,6 @@
 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
 
-#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
-		      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
-
 #define I2C_PAD_CTRL	(PAD_CTL_PUS_100K_UP |			\
 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
 	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
@@ -56,18 +52,6 @@
 
 #define DISP_PAD_CTRL	(0x10)
 
-#define ECSPI4_CS1		IMX_GPIO_NR(5, 2)
-
-#if (CONFIG_SYS_BOARD_VERSION == 2)
-	/* 4.3 display controller */
-	#define ECSPI1_CS0		IMX_GPIO_NR(4, 9)
-	#define ECSPI4_CS0		IMX_GPIO_NR(3, 29)
-#elif (CONFIG_SYS_BOARD_VERSION == 3)
-	#define ECSPI1_CS0		IMX_GPIO_NR(2, 30)   /* NOR flash */
-	/* 4.3 display controller */
-	#define ECSPI1_CS1		IMX_GPIO_NR(4, 10)
-#endif
-
 enum {
 	BOARD_TYPE_4 = 4,
 	BOARD_TYPE_7 = 7,
@@ -129,33 +113,11 @@
 	MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
-static iomux_v3_cfg_t const ecspi1_pads[] = {
-	MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
-	MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
-	MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
-#if (CONFIG_SYS_BOARD_VERSION == 2)
-	MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(SPI_PAD_CTRL),
-#elif (CONFIG_SYS_BOARD_VERSION == 3)
-	MX6_PAD_EIM_EB2__GPIO2_IO30  | MUX_PAD_CTRL(SPI_PAD_CTRL),
-	MX6_PAD_KEY_COL2__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
-#endif
-};
-
 static void setup_iomux_enet(void)
 {
 	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
 }
 
-#if (CONFIG_SYS_BOARD_VERSION == 2)
-iomux_v3_cfg_t const ecspi4_pads[] = {
-	MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(NO_PAD_CTRL),
-	MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(NO_PAD_CTRL),
-	MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(NO_PAD_CTRL),
-	MX6_PAD_EIM_A25__GPIO5_IO02  | MUX_PAD_CTRL(NO_PAD_CTRL),
-	MX6_PAD_EIM_D29__GPIO3_IO29  | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-#endif
-
 static iomux_v3_cfg_t const display_pads[] = {
 	MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(DISP_PAD_CTRL),
 	MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
@@ -187,50 +149,6 @@
 	MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
 };
 
-int board_spi_cs_gpio(unsigned int bus, unsigned int cs)
-{
-	if (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
-#if (CONFIG_SYS_BOARD_VERSION == 2)
-		return IMX_GPIO_NR(5, 2);
-
-	if (bus == 0 && cs == 0)
-		return IMX_GPIO_NR(4, 9);
-#elif (CONFIG_SYS_BOARD_VERSION == 3)
-		return ECSPI1_CS0;
-
-	if (bus == 0 && cs == 1)
-		return ECSPI1_CS1;
-#endif
-	return -1;
-}
-
-static void setup_spi(void)
-{
-	int i;
-
-	imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
-
-#if (CONFIG_SYS_BOARD_VERSION == 2)
-	imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
-#endif
-
-	for (i = 0; i < 4; i++)
-		enable_spi_clk(true, i);
-
-	gpio_request(ECSPI1_CS0, "spi1_cs0");
-	gpio_direction_output(ECSPI1_CS0, 1);
-#if (CONFIG_SYS_BOARD_VERSION == 2)
-	gpio_request(ECSPI4_CS1, "spi4_cs1");
-	gpio_direction_output(ECSPI4_CS1, 0);
-	/* set cs0 to high (second device on spi bus #4) */
-	gpio_request(ECSPI4_CS0, "spi4_cs0");
-	gpio_direction_output(ECSPI4_CS0, 1);
-#elif (CONFIG_SYS_BOARD_VERSION == 3)
-	gpio_request(ECSPI1_CS1, "spi1_cs1");
-	gpio_direction_output(ECSPI1_CS1, 1);
-#endif
-}
-
 int board_phy_config(struct phy_device *phydev)
 {
 	/* control data pad skew - devaddr = 0x02, register = 0x04 */
@@ -564,13 +482,6 @@
 	setup_one_led("led_blue", LEDST_OFF);
 }
 
-static void setup_board_spi(void)
-{
-	/* enable spi bus #2 SS drivers (and spi bus #4 SS1 for rev2b) */
-	gpio_request(IMX_GPIO_NR(6, 6), "spi_ena");
-	gpio_direction_output(IMX_GPIO_NR(6, 6), 1);
-}
-
 int board_late_init(void)
 {
 	char *my_bootdelay;
@@ -785,8 +696,6 @@
 	/* address of boot parameters */
 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 
-	setup_spi();
-
 	setup_i2c(0, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
 		  &i2c_pad_info1);
 	setup_i2c(1, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
@@ -795,14 +704,8 @@
 		  &i2c_pad_info3);
 	setup_i2c4();
 
-	/* SPI NOR Flash read only */
-	gpio_request(CONFIG_GPIO_ENABLE_SPI_FLASH, "ena_spi_nor");
-	gpio_direction_output(CONFIG_GPIO_ENABLE_SPI_FLASH, 0);
-	gpio_free(CONFIG_GPIO_ENABLE_SPI_FLASH);
-
 	setup_board_gpio();
 	setup_gpmi_nand();
-	setup_board_spi();
 
 	/* GPIO_1 for USB_OTG_ID */
 	clrsetbits_le32(&iomux->gpr[1], IOMUXC_GPR1_USB_OTG_ID_SEL_MASK, 0);
diff --git a/configs/aristainetos2_defconfig b/configs/aristainetos2_defconfig
index ea60e17..0fa6bfb 100644
--- a/configs/aristainetos2_defconfig
+++ b/configs/aristainetos2_defconfig
@@ -64,6 +64,7 @@
 CONFIG_MTD=y
 CONFIG_MTD_RAW_NAND=y
 CONFIG_NAND_MXS=y
+CONFIG_DM_SPI_FLASH=y
 CONFIG_SF_DEFAULT_BUS=3
 CONFIG_SF_DEFAULT_CS=1
 CONFIG_SF_DEFAULT_MODE=0
@@ -84,6 +85,7 @@
 CONFIG_PWM_IMX=y
 CONFIG_DM_SERIAL=y
 CONFIG_SPI=y
+CONFIG_DM_SPI=y
 CONFIG_MXC_SPI=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
diff --git a/include/configs/aristainetos2.h b/include/configs/aristainetos2.h
index 269162e..ced2bab 100644
--- a/include/configs/aristainetos2.h
+++ b/include/configs/aristainetos2.h
@@ -31,8 +31,6 @@
 		"ubifsload ${fit_addr_r} /boot/system.itb; " \
 		"imi ${fit_addr_r}\0 "
 
-#define CONFIG_GPIO_ENABLE_SPI_FLASH	IMX_GPIO_NR(2, 15)
-
 /* Framebuffer */
 #define CONFIG_SYS_LDB_CLOCK 33246000
 #define CONFIG_LG4573
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 1e2196f..74b0005 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -649,7 +649,6 @@
 CONFIG_GLOBAL_TIMER
 CONFIG_GMII
 CONFIG_GPCNTRL
-CONFIG_GPIO_ENABLE_SPI_FLASH
 CONFIG_GPIO_LED_INVERTED_TABLE
 CONFIG_GPIO_LED_STUBS
 CONFIG_GREEN_LED