[U-Boot] [PATCH] i2c: mxc: allow executing the code that only applies to i.MX platforms

[Gong Qianyu]

The bus_i2c_init() is called before relocation and will assgin
value to a static variable. If U-Boot is then still running in a
flash device, it's theoretically not allowed to write data to flash
without an erasing operation. For i.MX platforms, the U-Boot is
always running in DDR.

Actually it causes asynchronous error when the ARM64 system error report
is enabled and the flash write protect is set.

Signed-off-by: Gong Qianyu <Qianyu.Gong at freescale.com>
---
 drivers/i2c/mxc_i2c.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index fa4c82f..4dddb83 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -581,8 +581,11 @@ void bus_i2c_init(int index, int speed, int unused,
 		return;
 	}
 
+#if defined(CONFIG_MX51) || defined(CONFIG_MX53) || \
+	defined(CONFIG_MX6) || defined(CONFIG_MX7)
 	mxc_i2c_buses[index].idle_bus_fn = idle_bus_fn;
 	mxc_i2c_buses[index].idle_bus_data = idle_bus_data;
+#endif
 
 	ret = enable_i2c_clk(1, index);
 	if (ret < 0) {
-- 
2.1.0.27.g96db324