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authorSebastian Panceac <sebastian@resin.io>2018-02-28 11:40:49 +0200
committerThomas Gleixner <tglx@linutronix.de>2018-02-28 18:17:18 +0100
commit028091f82eefd5e84f81cef81a7673016ecbe78b (patch)
tree10711584de9bddbc39e7c2cdfa25b5d71d588e6d /arch
parent22636f8c9511245cb3c8412039f1dd95afb3aa59 (diff)
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 <sebastian@resin.io> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/1519810849-15131-1-git-send-email-sebastian@resin.io
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/platform/intel-mid/intel-mid.c2
1 files changed, 1 insertions, 1 deletions
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)