Commit-ID: 028091f82eefd5e84f81cef81a7673016ecbe78b
Gitweb: https://git.kernel.org/tip/028091f82eefd5e84f81cef81a7673016ecbe78b
Author: Sebastian Panceac <[email protected]>
AuthorDate: Wed, 28 Feb 2018 11:40:49 +0200
Committer: Thomas Gleixner <[email protected]>
CommitDate: Wed, 28 Feb 2018 18:17:18 +0100
x86/platform/intel-mid: Handle Intel Edison reboot correctly
When the Intel Edison module is powered with 3.3V, the reboot command makes
the module stuck. If the module is powered at a greater voltage, like 4.4V
(as the Edison Mini Breakout board does), reboot works OK.
The official Intel Edison BSP sends the IPCMSG_COLD_RESET message to the
SCU by default. The IPCMSG_COLD_BOOT which is used by the upstream kernel
is only sent when explicitely selected on the kernel command line.
Use IPCMSG_COLD_RESET unconditionally which makes reboot work independent
of the power supply voltage.
[ tglx: Massaged changelog ]
Fixes: bda7b072de99 ("x86/platform/intel-mid: Implement power off sequence")
Signed-off-by: Sebastian Panceac <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Cc: [email protected]
Link:
https://lkml.kernel.org/r/[email protected]
---
arch/x86/platform/intel-mid/intel-mid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/platform/intel-mid/intel-mid.c
b/arch/x86/platform/intel-mid/intel-mid.c
index 2c67bae6bb53..fb1df9488e98 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -79,7 +79,7 @@ static void intel_mid_power_off(void)
static void intel_mid_reboot(void)
{
- intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
+ intel_scu_ipc_simple_command(IPCMSG_COLD_RESET, 0);
}
static unsigned long __init intel_mid_calibrate_tsc(void)
