From mboxrd@z Thu Jan 1 00:00:00 1970 From: thor.thayer@linux.intel.com (thor.thayer at linux.intel.com) Date: Tue, 9 Jan 2018 11:25:35 -0600 Subject: [PATCH] ARM: socfpga: Configure l2c_aux_val Message-ID: <1515518735-10906-1-git-send-email-thor.thayer@linux.intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Thor Thayer Depending on the execution path, the A10 boot ROM/U-Boot may or may not set some bits in the l2c aux ctrl register. Due to this abiguity, linux must explicitly set the register. This patch forces the configuration to match the full boot flow, which also matches the setting used in the 3.10-ltsi version of the kernel. Signed-off-by: Matthew Gerlach Signed-off-by: Thor Thayer --- arch/arm/mach-socfpga/socfpga.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c index dde14f7bf2c3..37d28794f7d4 100644 --- a/arch/arm/mach-socfpga/socfpga.c +++ b/arch/arm/mach-socfpga/socfpga.c @@ -121,7 +121,10 @@ static const char *altera_a10_dt_match[] = { }; DT_MACHINE_START(SOCFPGA_A10, "Altera SOCFPGA Arria10") - .l2c_aux_val = 0, + .l2c_aux_val = L2C_AUX_CTRL_EVTMON_ENABLE | + L2C_AUX_CTRL_SHARED_OVERRIDE | + L310_AUX_CTRL_INSTR_PREFETCH | + L310_AUX_CTRL_DATA_PREFETCH, .l2c_aux_mask = ~0, .init_irq = socfpga_arria10_init_irq, .restart = socfpga_arria10_restart, -- 2.7.4