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authorSimon Glass <sjg@chromium.org>2014-10-01 19:57:24 -0600
committerSimon Glass <sjg@chromium.org>2014-10-22 10:36:55 -0600
commitedbf8b4f8c7ef61d3dea5f629e0d756990b8277d (patch)
tree71cb5e5d6d2617f8e841d8e560b5d685d756a2e9 /board/compulab/cm_fx6
parentb8893327e9d22ded1cd70669884ed9d53fa9b013 (diff)
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imx: Add error checking to setup_i2c()
Since this function can fail, check its return value. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Nikita Kiryanov <nikita@compulab.co.il>
Diffstat (limited to 'board/compulab/cm_fx6')
-rw-r--r--board/compulab/cm_fx6/cm_fx6.c40
1 files changed, 34 insertions, 6 deletions
diff --git a/board/compulab/cm_fx6/cm_fx6.c b/board/compulab/cm_fx6/cm_fx6.c
index fdb8ebf..9c6e686 100644
--- a/board/compulab/cm_fx6/cm_fx6.c
+++ b/board/compulab/cm_fx6/cm_fx6.c
@@ -141,14 +141,36 @@ I2C_PADS(i2c2_pads,
IMX_GPIO_NR(1, 6));
-static void cm_fx6_setup_i2c(void)
+static int cm_fx6_setup_one_i2c(int busnum, struct i2c_pads_info *pads)
{
- setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, I2C_PADS_INFO(i2c0_pads));
- setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, I2C_PADS_INFO(i2c1_pads));
- setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, I2C_PADS_INFO(i2c2_pads));
+ int ret;
+
+ ret = setup_i2c(busnum, CONFIG_SYS_I2C_SPEED, 0x7f, pads);
+ if (ret)
+ printf("Warning: I2C%d setup failed: %d\n", busnum, ret);
+
+ return ret;
+}
+
+static int cm_fx6_setup_i2c(void)
+{
+ int ret = 0, err;
+
+ /* i2c<x>_pads are wierd macro variables; we can't use an array */
+ err = cm_fx6_setup_one_i2c(0, I2C_PADS_INFO(i2c0_pads));
+ if (err)
+ ret = err;
+ err = cm_fx6_setup_one_i2c(1, I2C_PADS_INFO(i2c1_pads));
+ if (err)
+ ret = err;
+ err = cm_fx6_setup_one_i2c(2, I2C_PADS_INFO(i2c2_pads));
+ if (err)
+ ret = err;
+
+ return ret;
}
#else
-static void cm_fx6_setup_i2c(void) { }
+static int cm_fx6_setup_i2c(void) { return 0; }
#endif
#ifdef CONFIG_USB_EHCI_MX6
@@ -409,9 +431,15 @@ void ft_board_setup(void *blob, bd_t *bd)
int board_init(void)
{
+ int ret;
+
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
cm_fx6_setup_gpmi_nand();
- cm_fx6_setup_i2c();
+
+ /* Warn on failure but do not abort boot */
+ ret = cm_fx6_setup_i2c();
+ if (ret)
+ printf("Warning: I2C setup failed: %d\n", ret);
return 0;
}