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Diffstat (limited to 'arch/arm/mach-ux500/cpu.c')
-rw-r--r--arch/arm/mach-ux500/cpu.c123
1 files changed, 2 insertions, 121 deletions
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 8aa104a..f418574 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -10,14 +10,12 @@
#include <linux/clk.h>
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-prcmu.h>
+#include <linux/clksrc-dbx500-prcmu.h>
-#include <asm/cacheflush.h>
-#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
#include <asm/localtimer.h>
-#include <plat/mtu.h>
#include <mach/hardware.h>
#include <mach/setup.h>
#include <mach/devices.h>
@@ -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;
@@ -53,119 +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 __init ux500_l2x0_unlock(void)
-{
- int i;
-
- /*
- * Unlock Data and Instruction Lock if locked. Ux500 U-Boot versions
- * apparently locks both caches before jumping to the kernel. The
- * l2x0 core will not touch the unlock registers if the l2x0 is
- * already enabled, so we do it right here instead. The PL310 has
- * 8 sets of registers, one per possible CPU.
- */
- for (i = 0; i < 8; i++) {
- writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_D_BASE +
- i * L2X0_LOCKDOWN_STRIDE);
- writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_I_BASE +
- i * L2X0_LOCKDOWN_STRIDE);
- }
- return 0;
-}
-
-static int __init 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();
-
- /* Unlock before init */
- ux500_l2x0_unlock();
-
- /* 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,
-};