From 9cfb541a4ad45168925078f7d1fe3a7363ba27e2 Mon Sep 17 00:00:00 2001 From: Vladimir Murzin Date: Tue, 3 Apr 2018 10:36:37 +0100 Subject: ARM: 8754/1: NOMMU: Move PMSAv7 MPU under it's own namespace MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We are going to support different MPU which programming model is not compatible to PMSAv7, so move PMSAv7 MPU under it's own namespace. Tested-by: Szemz? András Tested-by: Alexandre TORGUE Signed-off-by: Vladimir Murzin Signed-off-by: Russell King --- arch/arm/mm/nommu.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'arch/arm/mm/nommu.c') diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index 7c087961b7ce..edbaa47be160 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -99,6 +99,32 @@ void __init arm_mm_memblock_reserve(void) memblock_reserve(0, 1); } +static void __init adjust_lowmem_bounds_mpu(void) +{ + unsigned long pmsa = read_cpuid_ext(CPUID_EXT_MMFR0) & MMFR0_PMSA; + + switch (pmsa) { + case MMFR0_PMSAv7: + pmsav7_adjust_lowmem_bounds(); + break; + default: + break; + } +} + +static void __init mpu_setup(void) +{ + unsigned long pmsa = read_cpuid_ext(CPUID_EXT_MMFR0) & MMFR0_PMSA; + + switch (pmsa) { + case MMFR0_PMSAv7: + pmsav7_setup(); + break; + default: + break; + } +} + void __init adjust_lowmem_bounds(void) { phys_addr_t end; -- cgit v1.2.3-70-g09d2