[lkml]   [2018]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH 1/1] x86: Fix Intel Edison module stuck reboot
Hi Andy,

I fixed the commit description according to your suggestions and used git send-email.


When powering Intel Edison module 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.

This patch copies the behaviour from the official Intel Edison BSP,
where "IPCMSG_COLD_RESET" message
was sent to SCU by default at reboot time.

In the official BSP, sending the "IPCMSG_COLD_BOOT" message instead
of "IPCMSG_COLD_RESET" was possible,
by using a kernel command line parameter.

Signed-off-by: Sebastian Panceac <>
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 2c67bae..fb1df94 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)
 \ /
  Last update: 2018-02-27 11:08    [W:0.088 / U:3.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site