MLK-19726-2 arm: Don't remove all devices when power domain driver is enabled

Because we power off all devices in board_quiesce_devices which is prior then executing dm_remove_devices_flags. So any access to HW in dm_remove_devices_flags will cause problem. However, some drivers like ethernet which implements the pre_remove callback is always called without any flags check, and this finally accesses FEC controller. Since we don't need to remove all devices in u-boot before starting kernel, disable this feature when power domain is enabled. Signed-off-by: Ye Li <ye.li@nxp.com> (cherry picked from commit 741f2ea182bf293d8270bdc4a217a96db22c414c)

MLK-19726-2 arm: Don't remove all devices when power domain driver is enabled
Because we power off all devices in board_quiesce_devices which is prior then executing dm_remove_devices_flags. So any access to HW in dm_remove_devices_flags will cause problem. However, some drivers like ethernet which implements the pre_remove callback is always called without any flags check, and this finally accesses FEC controller. Since we don't need to remove all devices in u-boot before starting kernel, disable this feature when power domain is enabled. Signed-off-by: Ye Li <ye.li@nxp.com> (cherry picked from commit 741f2ea182bf293d8270bdc4a217a96db22c414c)
Ye Li · Eric Lee · Eric Lee · Eric Lee · Eric Lee · Eric Lee
1 parent f0a7dde8eb
Showing 1 changed file with 2 additions and 0 deletions Side-by-side Diff
arch/arm/lib/bootm.c
@@ -109,7 +109,9 @@
 	 * This may be useful for last-stage operations, like cancelling
 	 * of DMA operation or releasing device internal buffers.
 	 */
+#ifndef CONFIG_POWER_DOMAIN
 	dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
+#endif
  
 	cleanup_before_linux();
 }
...	...	@@ -109,7 +109,9 @@
109	109	* This may be useful for last-stage operations, like cancelling
110	110	* of DMA operation or releasing device internal buffers.
111	111	*/
	112	+#ifndef CONFIG_POWER_DOMAIN
112	113	dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
	114	+#endif
113	115
114	116	cleanup_before_linux();
115	117	}