X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Farm%2Fmach-ux500%2Fcpu.c;h=f4185749437533f5acd930dcc612113f57556eef;hp=1da23bb87c16bcec2047d9ac8e08e474d2f505ce;hb=70c9f18ca8f3652c7dcf715e9f0d41c399fe130d;hpb=e5036c2575b244851637a81efc4104c076c4fa21 diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index 1da23bb87c16..f41857494375 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -10,14 +10,12 @@ #include #include #include +#include -#include -#include #include #include #include -#include #include #include #include @@ -26,10 +24,6 @@ void __iomem *_PRCMU_BASE; -#ifdef CONFIG_CACHE_L2X0 -static void __iomem *l2x0_base; -#endif - void __init ux500_init_irq(void) { void __iomem *dist_base; @@ -53,96 +47,6 @@ void __init ux500_init_irq(void) if (cpu_is_u5500()) db5500_prcmu_early_init(); if (cpu_is_u8500()) - prcmu_early_init(); + db8500_prcmu_early_init(); clk_init(); } - -#ifdef CONFIG_CACHE_L2X0 -static inline void ux500_cache_wait(void __iomem *reg, unsigned long mask) -{ - /* wait for the operation to complete */ - while (readl_relaxed(reg) & mask) - ; -} - -static inline void ux500_cache_sync(void) -{ - void __iomem *base = l2x0_base; - - writel_relaxed(0, base + L2X0_CACHE_SYNC); - ux500_cache_wait(base + L2X0_CACHE_SYNC, 1); -} - -/* - * The L2 cache cannot be turned off in the non-secure world. - * Dummy until a secure service is in place. - */ -static void ux500_l2x0_disable(void) -{ -} - -/* - * This is only called when doing a kexec, just after turning off the L2 - * and L1 cache, and it is surrounded by a spinlock in the generic version. - * However, we're not really turning off the L2 cache right now and the - * PL310 does not support exclusive accesses (used to implement the spinlock). - * So, the invalidation needs to be done without the spinlock. - */ -static void ux500_l2x0_inv_all(void) -{ - void __iomem *base = l2x0_base; - uint32_t l2x0_way_mask = (1<<16) - 1; /* Bitmask of active ways */ - - /* invalidate all ways */ - writel_relaxed(l2x0_way_mask, base + L2X0_INV_WAY); - ux500_cache_wait(base + L2X0_INV_WAY, l2x0_way_mask); - ux500_cache_sync(); -} - -static int ux500_l2x0_init(void) -{ - if (cpu_is_u5500()) - l2x0_base = __io_address(U5500_L2CC_BASE); - else if (cpu_is_u8500()) - l2x0_base = __io_address(U8500_L2CC_BASE); - else - ux500_unknown_soc(); - - /* 64KB way size, 8 way associativity, force WA */ - l2x0_init(l2x0_base, 0x3e060000, 0xc0000fff); - - /* Override invalidate function */ - outer_cache.disable = ux500_l2x0_disable; - outer_cache.inv_all = ux500_l2x0_inv_all; - - return 0; -} -early_initcall(ux500_l2x0_init); -#endif - -static void __init ux500_timer_init(void) -{ -#ifdef CONFIG_LOCAL_TIMERS - /* Setup the local timer base */ - if (cpu_is_u5500()) - twd_base = __io_address(U5500_TWD_BASE); - else if (cpu_is_u8500()) - twd_base = __io_address(U8500_TWD_BASE); - else - ux500_unknown_soc(); -#endif - if (cpu_is_u5500()) - mtu_base = __io_address(U5500_MTU0_BASE); - else if (cpu_is_u8500ed()) - mtu_base = __io_address(U8500_MTU0_BASE_ED); - else if (cpu_is_u8500()) - mtu_base = __io_address(U8500_MTU0_BASE); - else - ux500_unknown_soc(); - - nmdk_timer_init(); -} - -struct sys_timer ux500_timer = { - .init = ux500_timer_init, -};