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From: Marcel Ziswiler <marcel@ziswiler.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 06/13] colibri_t20: add i2c support
Date: Mon,  6 Jul 2015 10:20:32 +0200	[thread overview]
Message-ID: <9eeabbb361cf51e14b8adc39fe6f5ba5a91a7cf7.1436170106.git.marcel.ziswiler@toradex.com> (raw)
In-Reply-To: <cover.1436170106.git.marcel.ziswiler@toradex.com>

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Add I2C support in order to subsequently allow disabling the PMIC sleep
mode on low supply voltage.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
---
 arch/arm/dts/tegra20-colibri.dts | 28 ++++++++++++++++++++++++++++
 include/configs/colibri_t20.h    |  4 ++++
 2 files changed, 32 insertions(+)

diff --git a/arch/arm/dts/tegra20-colibri.dts b/arch/arm/dts/tegra20-colibri.dts
index ae40bad..42efcdc 100644
--- a/arch/arm/dts/tegra20-colibri.dts
+++ b/arch/arm/dts/tegra20-colibri.dts
@@ -11,6 +11,9 @@
 	};
 
 	aliases {
+		i2c0 = "/i2c at 7000d000";
+		i2c1 = "/i2c at 7000c000";
+		i2c2 = "/i2c at 7000c400";
 		usb0 = "/usb at c5008000";
 		usb1 = "/usb at c5000000";
 		usb2 = "/usb at c5004000";
@@ -52,6 +55,31 @@
 		};
 	};
 
+	/*
+	 * GEN1_I2C: I2C_SDA/SCL on SODIMM pin 194/196 (e.g. RTC on carrier
+	 * board)
+	 */
+	i2c at 7000c000 {
+		status = "okay";
+		clock-frequency = <100000>;
+	};
+
+	/* GEN2_I2C: unused */
+
+	/* DDC_CLOCK/DATA on X3 pin 15/16 (e.g. display EDID) */
+	i2c at 7000c400 {
+		status = "okay";
+		clock-frequency = <100000>;
+	};
+
+	/*
+	 * PWR_I2C: power I2C to PMIC and temperature sensor
+	 */
+	i2c at 7000d000 {
+		status = "okay";
+		clock-frequency = <100000>;
+	};
+
 	sdhci at c8000600 {
 		status = "okay";
 		cd-gpios = <&gpio TEGRA_GPIO(C, 7) GPIO_ACTIVE_LOW>;
diff --git a/include/configs/colibri_t20.h b/include/configs/colibri_t20.h
index fce1411..c85fb9f 100644
--- a/include/configs/colibri_t20.h
+++ b/include/configs/colibri_t20.h
@@ -25,6 +25,10 @@
 
 #define CONFIG_MACH_TYPE		MACH_TYPE_COLIBRI_T20
 
+/* I2C */
+#define CONFIG_SYS_I2C_TEGRA
+#define CONFIG_CMD_I2C
+
 /* SD/MMC support */
 #define CONFIG_MMC
 #define CONFIG_GENERIC_MMC
-- 
1.9.3

  parent reply	other threads:[~2015-07-06  8:20 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-06  8:20 [U-Boot] [PATCH 00/13] assortment of tegra fixes/enhancements Marcel Ziswiler
2015-07-06  8:20 ` [U-Boot] [PATCH 01/13] ARM: tegra: allow custom usb manufacturer/product/vendor ids/strings Marcel Ziswiler
2015-07-06 16:39   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 02/13] ARM: tegra: allow reading recovery mode boot type Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 03/13] apalis/colibri_t20/t30: integrate recovery mode detection Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-07  6:04     ` Marcel Ziswiler
2015-07-08 20:57       ` Stephen Warren
2015-07-09 13:02         ` Marcel Ziswiler
2015-07-09 15:02         ` Stefan Agner
2015-07-09 15:51           ` Stephen Warren
2015-07-06  8:20 ` [U-Boot] [PATCH 04/13] colibri_t20: fix device-tree compatible node Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 05/13] colibri_t20: add LCD display support Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-07  8:54     ` Marcel Ziswiler
2015-07-06  8:20 ` Marcel Ziswiler [this message]
2015-07-06 16:38   ` [U-Boot] [PATCH 06/13] colibri_t20: add i2c support Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 07/13] colibri_t20: disable PMIC sleep mode on low supply voltage Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 08/13] tegra: nand: fix read_byte required for proper onfi detection Marcel Ziswiler
2015-07-06  8:20 ` [U-Boot] [PATCH 09/13] colibri_t20: enable nand " Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 10/13] mtd/nand/tegra: alignment workaround Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 11/13] colibri_t20: enable mtdparts support Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 12/13] apalis/colibri_t20/t30: enable raw initrd support Marcel Ziswiler
2015-07-06 16:39   ` Simon Glass
2015-07-06  8:20 ` [U-Boot] [PATCH 13/13] apalis/colibri_t20/t30: increase tftp blocksize Marcel Ziswiler
2015-07-06 16:38   ` Simon Glass
2015-07-08 21:03   ` Stephen Warren
2015-07-09 13:26     ` Marcel Ziswiler

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