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From: Troy Kisky <troy.kisky@boundarydevices.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/3] mx6qsabrelite: add i2c support
Date: Tue, 24 Apr 2012 20:33:26 -0700	[thread overview]
Message-ID: <1335324807-16177-2-git-send-email-troy.kisky@boundarydevices.com> (raw)
In-Reply-To: <1335324807-16177-1-git-send-email-troy.kisky@boundarydevices.com>

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
---
 board/freescale/mx6qsabrelite/mx6qsabrelite.c |   11 +++++++++++
 include/configs/mx6qsabrelite.h               |    8 ++++++++
 2 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
index 1d09a72..8690f22 100644
--- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c
+++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
@@ -50,6 +50,11 @@ DECLARE_GLOBAL_DATA_PTR;
 	PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |		\
 	PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
 
+#define I2C_PAD_CTRL	(PAD_CTL_PKE | PAD_CTL_PUE |		\
+	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
+	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
+	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+
 int dram_init(void)
 {
        gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -67,6 +72,11 @@ iomux_v3_cfg_t uart2_pads[] = {
        MX6Q_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
 };
 
+iomux_v3_cfg_t i2c3_pads[] = {
+	MX6Q_PAD_GPIO_5__I2C3_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	MX6Q_PAD_GPIO_16__I2C3_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL),
+};
+
 iomux_v3_cfg_t usdhc3_pads[] = {
        MX6Q_PAD_SD3_CLK__USDHC3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
        MX6Q_PAD_SD3_CMD__USDHC3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
@@ -282,6 +292,7 @@ int board_init(void)
 #ifdef CONFIG_MXC_SPI
 	setup_spi();
 #endif
+	imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads));
 
        return 0;
 }
diff --git a/include/configs/mx6qsabrelite.h b/include/configs/mx6qsabrelite.h
index f52c3c7..311494b 100644
--- a/include/configs/mx6qsabrelite.h
+++ b/include/configs/mx6qsabrelite.h
@@ -58,6 +58,14 @@
 #define CONFIG_SF_DEFAULT_MODE (SPI_MODE_0)
 #endif
 
+/* I2C Configs */
+#define CONFIG_CMD_I2C
+#define CONFIG_HARD_I2C
+#define CONFIG_I2C_MXC
+#define CONFIG_SYS_I2C_BASE		I2C3_BASE_ADDR
+#define CONFIG_SYS_I2C_SPEED            100000
+#define CONFIG_SYS_I2C_SLAVE            0xfe
+
 /* MMC Configs */
 #define CONFIG_FSL_ESDHC
 #define CONFIG_FSL_USDHC
-- 
1.7.5.4

  reply	other threads:[~2012-04-25  3:33 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-25  3:33 [U-Boot] [PATCH 1/3] mxc_i2c: specify i2c base address in config file Troy Kisky
2012-04-25  3:33 ` Troy Kisky [this message]
2012-05-06 15:24   ` [U-Boot] [PATCH 2/3] mx6qsabrelite: add i2c support Stefano Babic
2012-04-25  3:33 ` [U-Boot] [PATCH 3/3] mxc_i2c: remove setting speed at each start Troy Kisky
2012-05-04 22:52   ` Troy Kisky
2012-05-05 13:05     ` Marek Vasut
2012-05-05 13:08     ` Marek Vasut
2012-05-05 20:22       ` Troy Kisky
2012-05-05 21:36         ` Marek Vasut
2012-05-05 22:26           ` Troy Kisky
2012-05-05 23:06             ` Marek Vasut
2012-05-06 15:27               ` Stefano Babic
2012-07-11  6:27                 ` Dirk Behme
2012-07-13 10:38                   ` Marek Vasut
2012-07-13 11:56                     ` Wolfgang Denk
2012-07-13 12:11                       ` Marek Vasut
2012-07-16  9:39                     ` Stefano Babic
2012-05-06 15:27 ` [U-Boot] [PATCH 1/3] mxc_i2c: specify i2c base address in config file Stefano Babic
2012-07-11  6:25   ` Dirk Behme
2012-07-11  8:35     ` Heiko Schocher

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