wandboard: Switch to SPL support

Currently we need to build one U-boot image for each of the wandboard
variants: quad, dual-lite and solo.

By switching to SPL we can support all these variants with a single binary,
which is very convenient.

Based on the work from Richard Hu.

Tested kernel booting on the three boards.

Signed-off-by: Richard Hu <hakahu@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Vagrant Cascadian <vagrant@aikidev.net>
Reviewed-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/wandboard/wandboard.c b/board/wandboard/wandboard.c
index 1075c65..90625ab 100644
--- a/board/wandboard/wandboard.c
+++ b/board/wandboard/wandboard.c
@@ -53,66 +53,66 @@
 
 int dram_init(void)
 {
-	gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024;
+	gd->ram_size = imx_ddr_size();
 
 	return 0;
 }
 
 static iomux_v3_cfg_t const uart1_pads[] = {
-	MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
-	MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+	IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
+	IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
 };
 
 static iomux_v3_cfg_t const usdhc1_pads[] = {
-	MX6_PAD_SD1_CLK__SD1_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_CMD__SD1_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IOMUX_PADS(PAD_SD1_CLK__SD1_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_CMD__SD1_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 	/* Carrier MicroSD Card Detect */
-	MX6_PAD_GPIO_2__GPIO1_IO02      | MUX_PAD_CTRL(NO_PAD_CTRL),
+	IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02  | MUX_PAD_CTRL(NO_PAD_CTRL)),
 };
 
 static iomux_v3_cfg_t const usdhc3_pads[] = {
-	MX6_PAD_SD3_CLK__SD3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD3_CMD__SD3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IOMUX_PADS(PAD_SD3_CLK__SD3_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_CMD__SD3_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 	/* SOM MicroSD Card Detect */
-	MX6_PAD_EIM_DA9__GPIO3_IO09     | MUX_PAD_CTRL(NO_PAD_CTRL),
+	IOMUX_PADS(PAD_EIM_DA9__GPIO3_IO09  | MUX_PAD_CTRL(NO_PAD_CTRL)),
 };
 
 static iomux_v3_cfg_t const enet_pads[] = {
-	MX6_PAD_ENET_MDIO__ENET_MDIO		| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_ENET_MDC__ENET_MDC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TXC__RGMII_TXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TD0__RGMII_TD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TD1__RGMII_TD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TD2__RGMII_TD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TD3__RGMII_TD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RXC__RGMII_RXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RD0__RGMII_RD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RD1__RGMII_RD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RD2__RGMII_RD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RD3__RGMII_RD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC    | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 	/* AR8031 PHY Reset */
-	MX6_PAD_EIM_D29__GPIO3_IO29		| MUX_PAD_CTRL(NO_PAD_CTRL),
+	IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29    | MUX_PAD_CTRL(NO_PAD_CTRL)),
 };
 
 static void setup_iomux_uart(void)
 {
-	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+	SETUP_IOMUX_PADS(uart1_pads);
 }
 
 static void setup_iomux_enet(void)
 {
-	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+	SETUP_IOMUX_PADS(enet_pads);
 
 	/* Reset AR8031 PHY */
 	gpio_direction_output(ETH_PHY_RESET, 0);
@@ -156,15 +156,13 @@
 	for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
 		switch (index) {
 		case 0:
-			imx_iomux_v3_setup_multiple_pads(
-				usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+			SETUP_IOMUX_PADS(usdhc3_pads);
 			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 			usdhc_cfg[0].max_bus_width = 4;
 			gpio_direction_input(USDHC3_CD_GPIO);
 			break;
 		case 1:
-			imx_iomux_v3_setup_multiple_pads(
-				usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
+			SETUP_IOMUX_PADS(usdhc1_pads);
 			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 			usdhc_cfg[1].max_bus_width = 4;
 			gpio_direction_input(USDHC1_CD_GPIO);
@@ -218,54 +216,66 @@
 }
 
 #if defined(CONFIG_VIDEO_IPUV3)
-struct i2c_pads_info i2c2_pad_info = {
+struct i2c_pads_info mx6q_i2c2_pad_info = {
 	.scl = {
-		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL
+		.i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL
 			| MUX_PAD_CTRL(I2C_PAD_CTRL),
-		.gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12
+		.gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12
 			| MUX_PAD_CTRL(I2C_PAD_CTRL),
 		.gp = IMX_GPIO_NR(4, 12)
 	},
 	.sda = {
-		.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA
+		.i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA
 			| MUX_PAD_CTRL(I2C_PAD_CTRL),
-		.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13
+		.gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13
+			| MUX_PAD_CTRL(I2C_PAD_CTRL),
+		.gp = IMX_GPIO_NR(4, 13)
+	}
+};
+
+struct i2c_pads_info mx6dl_i2c2_pad_info = {
+	.scl = {
+		.i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL
+			| MUX_PAD_CTRL(I2C_PAD_CTRL),
+		.gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12
+			| MUX_PAD_CTRL(I2C_PAD_CTRL),
+		.gp = IMX_GPIO_NR(4, 12)
+	},
+	.sda = {
+		.i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA
+			| MUX_PAD_CTRL(I2C_PAD_CTRL),
+		.gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13
 			| MUX_PAD_CTRL(I2C_PAD_CTRL),
 		.gp = IMX_GPIO_NR(4, 13)
 	}
 };
 
 static iomux_v3_cfg_t const fwadapt_7wvga_pads[] = {
-	MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
-	MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02, /* HSync */
-	MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03, /* VSync */
-	MX6_PAD_DI0_PIN4__IPU1_DI0_PIN04
-		| MUX_PAD_CTRL(PAD_CTL_DSE_120ohm), /* Contrast */
-	MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15, /* DISP0_DRDY */
-
-	MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
-	MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
-	MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
-	MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
-	MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
-	MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
-	MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
-	MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
-	MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
-	MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
-	MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
-	MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
-	MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
-	MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
-	MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
-	MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
-	MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
-	MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
-
-	MX6_PAD_SD4_DAT2__GPIO2_IO10
-		| MUX_PAD_CTRL(NO_PAD_CTRL), /* DISP0_BKLEN */
-	MX6_PAD_SD4_DAT3__GPIO2_IO11
-		| MUX_PAD_CTRL(NO_PAD_CTRL), /* DISP0_VDDEN */
+	IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK),
+	IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02), /* HSync */
+	IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03), /* VSync */
+	IOMUX_PADS(PAD_DI0_PIN4__IPU1_DI0_PIN04	| MUX_PAD_CTRL(PAD_CTL_DSE_120ohm)), /* Contrast */
+	IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15), /* DISP0_DRDY */
+	IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00),
+	IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01),
+	IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02),
+	IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03),
+	IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04),
+	IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05),
+	IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06),
+	IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07),
+	IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08),
+	IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09),
+	IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10),
+	IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11),
+	IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12),
+	IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13),
+	IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14),
+	IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15),
+	IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16),
+	IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17),
+	IOMUX_PADS(PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_BKLEN */
+	IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_VDDEN */
 };
 
 static void do_enable_hdmi(struct display_info_t const *dev)
@@ -281,9 +291,7 @@
 
 static void enable_fwadapt_7wvga(struct display_info_t const *dev)
 {
-	imx_iomux_v3_setup_multiple_pads(
-		fwadapt_7wvga_pads,
-		ARRAY_SIZE(fwadapt_7wvga_pads));
+	SETUP_IOMUX_PADS(fwadapt_7wvga_pads);
 
 	gpio_direction_output(IMX_GPIO_NR(2, 10), 1);
 	gpio_direction_output(IMX_GPIO_NR(2, 11), 1);
@@ -346,7 +354,7 @@
 	writel(reg, &mxc_ccm->chsccdr);
 
 	/* Disable LCD backlight */
-	imx_iomux_v3_setup_pad(MX6_PAD_DI0_PIN4__GPIO4_IO20);
+	SETUP_IOMUX_PAD(PAD_DI0_PIN4__GPIO4_IO20);
 	gpio_direction_input(IMX_GPIO_NR(4, 20));
 }
 #endif /* CONFIG_VIDEO_IPUV3 */
@@ -391,6 +399,12 @@
 	add_board_boot_modes(board_boot_modes);
 #endif
 
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+	if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
+		setenv("board_rev", "MX6Q");
+	else
+		setenv("board_rev", "MX6DL");
+#endif
 	return 0;
 }
 
@@ -399,7 +413,11 @@
 	/* address of boot parameters */
 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 
-	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c2_pad_info);
+	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c2_pad_info);
+	if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
+		setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6q_i2c2_pad_info);
+	else
+		setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c2_pad_info);
 
 	return 0;
 }