*
* For verifying the I2C bus, a full I2C bus scanning is performed.
*
- * #ifdef I2C_ADDR_LIST
- * The test is considered as passed if all the devices and
- * only the devices in the list are found.
- * #else [ ! I2C_ADDR_LIST ]
+ * #ifdef CONFIG_SYS_POST_I2C_ADDRS
+ * The test is considered as passed if all the devices and only the devices
+ * in the list are found.
+ * #ifdef CONFIG_SYS_POST_I2C_IGNORES
+ * Ignore devices listed in CONFIG_SYS_POST_I2C_IGNORES. These devices
+ * are optional or not vital to board functionality.
+ * #endif
+ * #else [ ! CONFIG_SYS_POST_I2C_ADDRS ]
* The test is considered as passed if any I2C device is found.
* #endif
*/
#if CONFIG_POST & CONFIG_SYS_POST_I2C
+static int i2c_ignore_device(unsigned int chip)
+{
+#ifdef CONFIG_SYS_POST_I2C_IGNORES
+ const unsigned char i2c_ignore_list[] = CONFIG_SYS_POST_I2C_IGNORES;
+ int i;
+
+ for (i = 0; i < sizeof(i2c_ignore_list); i++)
+ if (i2c_ignore_list[i] == chip)
+ return 1;
+#endif
+
+ return 0;
+}
+
int i2c_post_test (int flags)
{
unsigned int i;
-#ifndef I2C_ADDR_LIST
- for (i = 0; i < 128; i++)
+#ifndef CONFIG_SYS_POST_I2C_ADDRS
+ /* Start at address 1, address 0 is the general call address */
+ for (i = 1; i < 128; i++) {
+ if (i2c_ignore_device(i))
+ continue;
if (i2c_probe (i) == 0)
return 0;
+ }
/* No devices found */
return -1;
#else
unsigned int ret = 0;
int j;
- const unsigned char i2c_addr_list[] = I2C_ADDR_LIST;
+ unsigned char i2c_addr_list[] = CONFIG_SYS_POST_I2C_ADDRS;
- for (i = 0; i < 128; i++) {
+ /* Start at address 1, address 0 is the general call address */
+ for (i = 1; i < 128; i++) {
+ if (i2c_ignore_device(i))
+ continue;
if (i2c_probe(i) != 0)
continue;