From: Mahesh Mahadevan <r9aadq@freescale.com>
Date: Fri, 4 Nov 2011 14:45:37 +0000 (-0500)
Subject: ENGR00161483 Add SPI-NOR support on MX6 Sabre-lite
X-Git-Tag: v3.0.35-fsl_4.1.0~2095
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a0c6e92e29e0762231ba4a2d96357cff41e0f3ce;p=karo-tx-linux.git

ENGR00161483 Add SPI-NOR support on MX6 Sabre-lite

Add support to access SST SPI-NOR on MX6 Sabre-lite

Signed-off-by: Mahesh Mahadevan <r9aadq@freescale.com>
---

diff --git a/arch/arm/mach-mx6/board-mx6q_sabrelite.c b/arch/arm/mach-mx6/board-mx6q_sabrelite.c
index e168ccda5536..ee941336a198 100644
--- a/arch/arm/mach-mx6/board-mx6q_sabrelite.c
+++ b/arch/arm/mach-mx6/board-mx6q_sabrelite.c
@@ -48,6 +48,7 @@
 #include <linux/etherdevice.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
+#include <linux/spi/flash.h>
 
 #include <mach/common.h>
 #include <mach/hardware.h>
@@ -65,7 +66,6 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
-#include <asm/mach/flash.h>
 
 #include "usb.h"
 #include "devices-imx6q.h"
@@ -109,6 +109,7 @@ static iomux_v3_cfg_t mx6q_sabrelite_pads[] = {
 	MX6Q_PAD_EIM_D17__ECSPI1_MISO,
 	MX6Q_PAD_EIM_D18__ECSPI1_MOSI,
 	MX6Q_PAD_EIM_D16__ECSPI1_SCLK,
+	MX6Q_PAD_EIM_D19__GPIO_3_19,	/*SS1*/
 
 	/* ENET */
 	MX6Q_PAD_ENET_MDIO__ENET_MDIO,
@@ -182,13 +183,6 @@ static iomux_v3_cfg_t mx6q_sabrelite_pads[] = {
 	MX6Q_PAD_GPIO_17__GPIO_7_12,	/* USB Hub Reset */
 	MX6Q_PAD_GPIO_18__GPIO_7_13,	/* J14 - Volume Up */
 
-	/* HDMI */
-	MX6Q_PAD_EIM_EB2__HDMI_TX_DDC_SCL,
-	MX6Q_PAD_EIM_D16__HDMI_TX_DDC_SDA,
-	MX6Q_PAD_EIM_A25__HDMI_TX_CEC_LINE,
-	MX6Q_PAD_SD1_DAT1__HDMI_TX_OPHYDTB_0,
-	MX6Q_PAD_SD1_DAT0__HDMI_TX_OPHYDTB_1,
-
 	/* I2C1, SGTL5000 */
 	MX6Q_PAD_EIM_D21__I2C1_SCL,	/* GPIO3[21] */
 	MX6Q_PAD_EIM_D28__I2C1_SDA,	/* GPIO3[28] */
@@ -442,6 +436,46 @@ static const struct spi_imx_master mx6q_sabrelite_spi_data __initconst = {
 	.num_chipselect = ARRAY_SIZE(mx6q_sabrelite_spi_cs),
 };
 
+#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+static struct mtd_partition imx6_sabrelite_spi_nor_partitions[] = {
+	{
+	 .name = "bootloader",
+	 .offset = 0,
+	 .size = 0x00010000,
+	},
+	{
+	 .name = "kernel",
+	 .offset = MTDPART_OFS_APPEND,
+	 .size = MTDPART_SIZ_FULL,
+	},
+};
+
+static struct flash_platform_data imx6_sabrelite__spi_flash_data = {
+	.name = "m25p80",
+	.parts = imx6_sabrelite_spi_nor_partitions,
+	.nr_parts = ARRAY_SIZE(imx6_sabrelite_spi_nor_partitions),
+	.type = "sst25vf016b",
+};
+#endif
+
+static struct spi_board_info imx6_sabrelite_spi_nor_device[] __initdata = {
+#if defined(CONFIG_MTD_M25P80)
+	{
+		.modalias = "m25p80",
+		.max_speed_hz = 10000000, /* max spi clock (SCK) speed in HZ */
+		.bus_num = 0,
+		.chip_select = 0,
+		.platform_data = &imx6_sabrelite__spi_flash_data,
+	},
+#endif
+};
+
+static void spi_device_init(void)
+{
+	spi_register_board_info(imx6_sabrelite_spi_nor_device,
+				ARRAY_SIZE(imx6_sabrelite_spi_nor_device));
+}
+
 static struct mxc_audio_platform_data mx6_sabrelite_audio_data;
 
 static int mx6_sabrelite_sgtl5000_init(void)
@@ -834,6 +868,10 @@ static void __init mx6_sabrelite_board_init(void)
 	i2c_register_board_info(2, mxc_i2c2_board_info,
 			ARRAY_SIZE(mxc_i2c2_board_info));
 
+	/* SPI */
+	imx6q_add_ecspi(0, &mx6q_sabrelite_spi_data);
+	spi_device_init();
+
 	imx6q_add_mxc_hdmi(&hdmi_data);
 
 	imx6q_add_anatop_thermal_imx(1, &mx6q_sabrelite_anatop_thermal_data);