[U-Boot] [PATCH v2] arm: socfpga: fix issue with warm reset when CSEL is 0
Marek Vasut
marex at denx.de
Wed Feb 15 21:16:00 UTC 2017
On 02/15/2017 07:56 AM, Chin Liang See wrote:
> On Sel, 2017-02-14 at 10:28 -0800, Dalon Westergreen wrote:
>> When CSEL=0x0 the socfpga bootrom does not touch the clock
>> configuration for the device. This can lead to a boot failure
>> on warm resets. To address this, the bootrom is configured to
>> run a bit of code in the last 4KB of onchip ram on a warm reset.
>> This code puts the PLLs in bypass, disables the bootrom configuration
>> to run the code snippet, and issues a warm reset to run the bootrom.
>>
>> Signed-off-by: Dalon Westergreen <dwesterg at gmail.com>
>>
>> --
>> Changes in V2:
>> - Fix checkpatch issues predominently due to whitespace issues
>> ---
>> arch/arm/mach-socfpga/Makefile | 2 +-
>> arch/arm/mach-socfpga/include/mach/clock_manager.h | 26 +++++++-
>> arch/arm/mach-socfpga/include/mach/reset_manager.h | 4 ++
>> .../arm/mach-socfpga/include/mach/system_manager.h | 7 ++-
>> arch/arm/mach-socfpga/misc.c | 27 ++++++++
>> arch/arm/mach-socfpga/reset_clock_manager.S | 71
>> ++++++++++++++++++++++
>> 6 files changed, 134 insertions(+), 3 deletions(-)
>> create mode 100644 arch/arm/mach-socfpga/reset_clock_manager.S
>>
>>
>
> Acked-by: Chin Liang See <chin.liang.see at intel.com>
Sorry, in this state, definitelly
Naked-by: Marek Vasut <marex at denx.de>
--
Best regards,
Marek Vasut
More information about the U-Boot
mailing list