From mboxrd@z Thu Jan 1 00:00:00 1970 From: gregory.clement@free-electrons.com (Gregory CLEMENT) Date: Fri, 21 Jun 2013 17:31:03 +0200 Subject: [PATCH v7] ARM: PJ4B: fix for 3.10-rc Message-ID: <1371828664-3681-1-git-send-email-gregory.clement@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello, This path allows to fix one errata for PJ4B CPUs. Without this the Armada 370 based board can't boot anymore since 3.10-rc1. So this one really need to be applied on 3.10-rc. Willy Tarreau have reported that with the last version the kernel crashed in !SMP. The problem was that all the pj4b cpu functions were defined in the __CPU_INIT section and in !SMP the code was removed from the memory once the kernel initialization done. In this version I fixed this issue by moving the code outside this section, and the kernel now boots in SMP and !SMP. Nicolas, would you agree to give your acked-by on this new version before I sumbit it to Russell King's patch system? Thanks, V1 -> V2; - Fixed various coding style and typo issues - Replaced the "mcr p15, 0, r0, c7, c10, 4" by "dsb" V2 -> v3: - As suggested by Russell, the first errata is now applied dynamically according to the processor type v3 -> v4: - Moved the glob_equ maco into proc-macro.S - Split the patch in 2 parts, one for fixing the ID and mask of the PJ4B and the second for fixing the errata itself v4 -> v5: - Added #ifdef all the places the new symbols conditionally defined are used. v5 -> v6: - Selected the fix by default if MACH_ARMADA_370 is selected, as without it there is no point to use Armada 370 base board. v6 -> v7: - Move the pj4b cpu functions outside the CPU_INIT section Gregory CLEMENT (1): ARM PJ4B: Add support for errata 4742 arch/arm/Kconfig | 14 ++++++++++++++ arch/arm/include/asm/glue-proc.h | 9 +++++++++ arch/arm/mm/proc-macros.S | 5 +++++ arch/arm/mm/proc-v7.S | 34 +++++++++++++++++++++++++++++++--- 4 files changed, 59 insertions(+), 3 deletions(-) -- 1.8.1.2