imx: ventana: add support for GW5908

The GW5908 is a small single board computer based on the i.MX6DL SoC
with the same peripheral set as the GW530x but with 1GiB density DRAM
(64bit 512MiB).
Signed-off-by: NTim Harvey <tharvey@gateworks.com>

board/gateworks/gw_ventana/common.c

@@ -1112,6 +1112,27 @@ struct ventana gpio_cfg[GW_UNKNOWN] = {
 		.wdis = IMX_GPIO_NR(7, 12),
 		.nand = true,
 	},
+
+	/* GW5908 */
+	{
+		.gpio_pads = gw53xx_gpio_pads,
+		.num_pads = ARRAY_SIZE(gw53xx_gpio_pads)/2,
+		.dio_cfg = gw53xx_dio,
+		.dio_num = ARRAY_SIZE(gw53xx_dio),
+		.leds = {
+			IMX_GPIO_NR(4, 6),
+			IMX_GPIO_NR(4, 7),
+			IMX_GPIO_NR(4, 15),
+		},
+		.pcie_rst = IMX_GPIO_NR(1, 29),
+		.mezz_pwren = IMX_GPIO_NR(2, 19),
+		.mezz_irq = IMX_GPIO_NR(2, 18),
+		.gps_shdn = IMX_GPIO_NR(1, 27),
+		.vidin_en = IMX_GPIO_NR(3, 31),
+		.wdis = IMX_GPIO_NR(7, 12),
+		.msata_en = GP_MSATA_SEL,
+		.rs232_en = GP_RS232_EN,
+	},
 };
 
 #define SETUP_GPIO_OUTPUT(gpio, name, level) \

board/gateworks/gw_ventana/eeprom.c

@@ -107,6 +107,8 @@ read_eeprom(int bus, struct ventana_board_info *info)
 			type = GW5906;
 		else if (info->model[4] == '0' && info->model[5] == '7')
 			type = GW5907;
+		else if (info->model[4] == '0' && info->model[5] == '8')
+			type = GW5908;
 		break;
 	}
 	return type;

board/gateworks/gw_ventana/gw_ventana_spl.c

@@ -217,6 +217,46 @@ static struct mx6_mmdc_calibration mx6sdl_64x16_mmdc_calib = {
 	.p0_mpwrdlctl = 0x33382C31,
 };
 
+/* TODO: update with calibrated values */
+static struct mx6_mmdc_calibration mx6dq_64x64_mmdc_calib = {
+	/* write leveling calibration determine */
+	.p0_mpwldectrl0 = 0x00190017,
+	.p0_mpwldectrl1 = 0x00140026,
+	.p1_mpwldectrl0 = 0x0021001C,
+	.p1_mpwldectrl1 = 0x0011001D,
+	/* Read DQS Gating calibration */
+	.p0_mpdgctrl0 = 0x43380347,
+	.p0_mpdgctrl1 = 0x433C034D,
+	.p1_mpdgctrl0 = 0x032C0324,
+	.p1_mpdgctrl1 = 0x03310232,
+	/* Read Calibration: DQS delay relative to DQ read access */
+	.p0_mprddlctl = 0x3C313539,
+	.p1_mprddlctl = 0x37343141,
+	/* Write Calibration: DQ/DM delay relative to DQS write access */
+	.p0_mpwrdlctl = 0x36393C39,
+	.p1_mpwrdlctl = 0x42344438,
+};
+
+/* TODO: update with calibrated values */
+static struct mx6_mmdc_calibration mx6sdl_64x64_mmdc_calib = {
+	/* write leveling calibration determine */
+	.p0_mpwldectrl0 = 0x003C003C,
+	.p0_mpwldectrl1 = 0x001F002A,
+	.p1_mpwldectrl0 = 0x00330038,
+	.p1_mpwldectrl1 = 0x0022003F,
+	/* Read DQS Gating calibration */
+	.p0_mpdgctrl0 = 0x42410244,
+	.p0_mpdgctrl1 = 0x4234023A,
+	.p1_mpdgctrl0 = 0x022D022D,
+	.p1_mpdgctrl1 = 0x021C0228,
+	/* Read Calibration: DQS delay relative to DQ read access */
+	.p0_mprddlctl = 0x484A4C4B,
+	.p1_mprddlctl = 0x4B4D4E4B,
+	/* Write Calibration: DQ/DM delay relative to DQS write access */
+	.p0_mpwrdlctl = 0x33342B32,
+	.p1_mpwrdlctl = 0x3933332B,
+};
+
 static struct mx6_mmdc_calibration mx6dq_256x16_mmdc_calib = {
 	/* write leveling calibration determine */
 	.p0_mpwldectrl0 = 0x001B0016,
@@ -530,6 +570,10 @@ static void spl_dram_init(int width, int size_mb, int board_model)
 	} else if (width == 64 && size_mb == 512) {
 		mem = &mt41k64m16jt_125;
 		debug("1gB density\n");
+		if (is_cpu_type(MXC_CPU_MX6Q))
+			calib = &mx6dq_64x64_mmdc_calib;
+		else
+			calib = &mx6sdl_64x64_mmdc_calib;
 	} else if (width == 64 && size_mb == 1024) {
 		mem = &mt41k128m16jt_125;
 		if (is_cpu_type(MXC_CPU_MX6Q))

board/gateworks/gw_ventana/ventana_eeprom.h

@@ -117,6 +117,7 @@ enum {
 	GW5905,
 	GW5906,
 	GW5907,
+	GW5908,
 	GW_UNKNOWN,
 	GW_BADCRC,
 };