[U-Boot] [PATCH] arm: socfpga: fix issue with warm reset when CSEL is 0

[Dinh Nguyen]

On 02/14/2017 09:23 AM, 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>
> ---
>  arch/arm/mach-socfpga/Makefile                     |  2 +-
>  arch/arm/mach-socfpga/include/mach/clock_manager.h | 22 ++++++-
>  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                       | 29 +++++++++
>  arch/arm/mach-socfpga/reset_clock_manager.S        | 71 ++++++++++++++++++++++
>  6 files changed, 132 insertions(+), 3 deletions(-)
>  create mode 100644 arch/arm/mach-socfpga/reset_clock_manager.S
> 
> diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
> index 809cd47..6876ccf 100644
> --- a/arch/arm/mach-socfpga/Makefile
> +++ b/arch/arm/mach-socfpga/Makefile
> @@ -8,7 +8,7 @@

Please fix up these checkpatch errors:
total: 17 errors, 4 warnings, 2 checks, 199 lines checked

Dinh