diff options
Diffstat (limited to 'arch/arm/mach-ux500/cache-l2x0.c')
| -rw-r--r-- | arch/arm/mach-ux500/cache-l2x0.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/arch/arm/mach-ux500/cache-l2x0.c b/arch/arm/mach-ux500/cache-l2x0.c index da5569d83d5..842ebedbdd1 100644 --- a/arch/arm/mach-ux500/cache-l2x0.c +++ b/arch/arm/mach-ux500/cache-l2x0.c @@ -5,10 +5,13 @@ */ #include <linux/io.h> +#include <linux/of.h> + #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> -#include <mach/hardware.h> -#include <mach/id.h> + +#include "db8500-regs.h" +#include "id.h" static void __iomem *l2x0_base; @@ -32,28 +35,31 @@ static int __init ux500_l2x0_unlock(void) return 0; } +static void ux500_l2c310_write_sec(unsigned long val, unsigned reg) +{ + /* + * We can't write to secure registers as we are in non-secure + * mode, until we have some SMI service available. + */ +} + static int __init ux500_l2x0_init(void) { - if (cpu_is_u5500()) - l2x0_base = __io_address(U5500_L2CC_BASE); - else if (cpu_is_u8500()) + if (cpu_is_u8500_family() || cpu_is_ux540_family()) l2x0_base = __io_address(U8500_L2CC_BASE); else - ux500_unknown_soc(); + /* Non-Ux500 platform */ + return -ENODEV; /* Unlock before init */ ux500_l2x0_unlock(); - /* 64KB way size, 8 way associativity, force WA */ - l2x0_init(l2x0_base, 0x3e060000, 0xc0000fff); + outer_cache.write_sec = ux500_l2c310_write_sec; - /* - * We can't disable l2 as we are in non secure mode, currently - * this seems be called only during kexec path. So let's - * override outer.disable with nasty assignment until we have - * some SMI service available. - */ - outer_cache.disable = NULL; + if (of_have_populated_dt()) + l2x0_of_init(0, ~0); + else + l2x0_init(l2x0_base, 0, ~0); return 0; } |