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authorTroy Kisky <troy.kisky@boundarydevices.com>2012-07-19 08:18:26 +0000
committerHeiko Schocher <hs@denx.de>2012-07-31 08:01:09 +0200
commit9c06782863a9add2e75e940cf375ebb44a273212 (patch)
tree4cb56a3b1cbcfd54343dc3a41896e466eef2842f /board/freescale/mx6qsabrelite/mx6qsabrelite.c
parentcc54a0f7cccf976d350801d39c406e75465ebdd1 (diff)
mx6qsabrelite: add i2c multi-bus support
This includes bus recovery support. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Acked-by: Jason Liu <r64343@freescale.com>
Diffstat (limited to 'board/freescale/mx6qsabrelite/mx6qsabrelite.c')
-rw-r--r--board/freescale/mx6qsabrelite/mx6qsabrelite.c50
1 files changed, 46 insertions, 4 deletions
diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
index 34f65e98e4..01e508354a 100644
--- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c
+++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
@@ -28,6 +28,7 @@
#include <asm/errno.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/mxc_i2c.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <micrel.h>
@@ -77,9 +78,48 @@ 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),
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+
+/* I2C1, SGTL5000 */
+struct i2c_pads_info i2c_pad_info0 = {
+ .scl = {
+ .i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | PC,
+ .gpio_mode = MX6Q_PAD_EIM_D21__GPIO_3_21 | PC,
+ .gp = GPIO_NUMBER(3, 21)
+ },
+ .sda = {
+ .i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | PC,
+ .gpio_mode = MX6Q_PAD_EIM_D28__GPIO_3_28 | PC,
+ .gp = GPIO_NUMBER(3, 28)
+ }
+};
+
+/* I2C2 Camera, MIPI */
+struct i2c_pads_info i2c_pad_info1 = {
+ .scl = {
+ .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | PC,
+ .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO_4_12 | PC,
+ .gp = GPIO_NUMBER(4, 12)
+ },
+ .sda = {
+ .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | PC,
+ .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO_4_13 | PC,
+ .gp = GPIO_NUMBER(4, 13)
+ }
+};
+
+/* I2C3, J15 - RGB connector */
+struct i2c_pads_info i2c_pad_info2 = {
+ .scl = {
+ .i2c_mode = MX6Q_PAD_GPIO_5__I2C3_SCL | PC,
+ .gpio_mode = MX6Q_PAD_GPIO_5__GPIO_1_5 | PC,
+ .gp = GPIO_NUMBER(1, 5)
+ },
+ .sda = {
+ .i2c_mode = MX6Q_PAD_GPIO_16__I2C3_SDA | PC,
+ .gpio_mode = MX6Q_PAD_GPIO_16__GPIO_7_11 | PC,
+ .gp = GPIO_NUMBER(7, 11)
+ }
};
iomux_v3_cfg_t usdhc3_pads[] = {
@@ -346,7 +386,9 @@ int board_init(void)
#ifdef CONFIG_MXC_SPI
setup_spi();
#endif
- imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads));
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
+ setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+ setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
#ifdef CONFIG_CMD_SATA
setup_sata();