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| author | Sebastian Panceac <sebastian@resin.io> | 2018-02-28 10:40:49 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-02-28 18:17:18 +0100 |
| commit | 028091f82eefd5e84f81cef81a7673016ecbe78b (patch) | |
| tree | 10711584de9bddbc39e7c2cdfa25b5d71d588e6d | |
| parent | x86/asm: Add instruction suffixes to bitops (diff) | |
| download | linux-028091f82eefd5e84f81cef81a7673016ecbe78b.tar.xz linux-028091f82eefd5e84f81cef81a7673016ecbe78b.zip | |
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
| -rw-r--r-- | arch/x86/platform/intel-mid/intel-mid.c | 2 |
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) |