diff options
| author | Marek Vasut <marex@denx.de> | 2018-07-12 15:07:46 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2018-07-25 00:13:32 +0200 |
| commit | 937db7188e3a5ab8f802eff9b57854189379667a (patch) | |
| tree | 8cff8de87183a22a0298f6f9cb445ef3015fbffc /arch/arm/mach-socfpga/board.c | |
| parent | 00057eea66e6110898162cc72554c5fd8201cdef (diff) | |
ARM: socfpga: Assure correct CPACR configuration
Make sure the ARM CPACR register is zeroed out, this is mandatory
on Arria10.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Diffstat (limited to 'arch/arm/mach-socfpga/board.c')
| -rw-r--r-- | arch/arm/mach-socfpga/board.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/mach-socfpga/board.c b/arch/arm/mach-socfpga/board.c index 26d84be6e9..e8c7503fba 100644 --- a/arch/arm/mach-socfpga/board.c +++ b/arch/arm/mach-socfpga/board.c @@ -21,12 +21,14 @@ DECLARE_GLOBAL_DATA_PTR; void s_init(void) { #ifndef CONFIG_ARM64 /* - * Preconfigure ACTLR, make sure Write Full Line of Zeroes is disabled. + * Preconfigure ACTLR and CPACR, make sure Write Full Line of Zeroes + * is disabled in ACTLR. * This is optional on CycloneV / ArriaV. * This is mandatory on Arria10, otherwise Linux refuses to boot. */ asm volatile( "mcr p15, 0, %0, c1, c0, 1\n" + "mcr p15, 0, %0, c1, c0, 2\n" "isb\n" "dsb\n" ::"r"(0x0)); |