target/linux/bcm53xx/patches-4.1/071-ARM-l2c-write-auxiliary-control-register-first.patch

   1 From 7705dd256ce363f8b01429efb2f0dc4d1ee23c89 Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@arm.linux.org.uk>
   3 Date: Fri, 15 May 2015 11:07:14 +0100
   4 Subject: [PATCH 71/74] ARM: l2c: write auxiliary control register first
   5
   6 Before calling the controller specific configuration function, write
   7 the auxiliary control register first, so that bits shared with other
   8 registers (such as the prefetch control register) are not overwritten
   9 by the later write to the auxctrl register.
  10
  11 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  12 ---
  13  arch/arm/mm/cache-l2x0.c | 4 ++--
  14  1 file changed, 2 insertions(+), 2 deletions(-)
  15
  16 --- a/arch/arm/mm/cache-l2x0.c
  17 +++ b/arch/arm/mm/cache-l2x0.c
  18 @@ -115,10 +115,10 @@ static void l2c_configure(void __iomem *
  19                 return;
  20         }
  21
  22 +       l2c_write_sec(l2x0_saved_regs.aux_ctrl, base, L2X0_AUX_CTRL);
  23 +
  24         if (l2x0_data->configure)
  25                 l2x0_data->configure(base);
  26 -
  27 -       l2c_write_sec(l2x0_saved_regs.aux_ctrl, base, L2X0_AUX_CTRL);
  28  }
  29
  30  /*