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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 20:11:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 20:11:00 -0700
commit952414505f55afe5cd6dc004765076aa22b3ed7e (patch)
treeeba11ed702ae02fea7f1a0d422346454fc98296f /arch/arm/mach-ux500/cpu.c
parent68e24ba70465b82ad24e0774ceab5360180d4627 (diff)
parent3e965b176341b78620f7404fd8b7f9a0d061f8a2 (diff)
Merge branch 'next/cleanup' of git://git.linaro.org/people/arnd/arm-soc
* 'next/cleanup' of git://git.linaro.org/people/arnd/arm-soc: (125 commits) ARM: mach-mxs: fix machines' initializers order mmc: mxcmmc: explicitly includes mach/hardware.h arm/imx: explicitly includes mach/hardware.h in pm-imx27.c arm/imx: remove mx27_setup_weimcs() from mx27.h arm/imx: explicitly includes mach/hardware.h in mach-kzm_arm11_01.c arm/imx: remove mx31_setup_weimcs() from mx31.h ARM: tegra: devices.c should include devices.h ARM: tegra: cpu-tegra: unexport two functions ARM: tegra: cpu-tegra: sparse type fix ARM: tegra: dma: staticify some tables and functions ARM: tegra: tegra2_clocks: don't export some tables ARM: tegra: tegra_powergate_is_powered should be static ARM: tegra: tegra_rtc_read_ms should be static ARM: tegra: tegra_init_cache should be static ARM: tegra: pcie: 0 -> NULL changes ARM: tegra: pcie: include board.h ARM: tegra: pcie: don't cast __iomem pointers ARM: tegra: tegra2_clocks: 0 -> NULL changes ARM: tegra: tegra2_clocks: don't cast __iomem pointers ARM: tegra: timer: don't cast __iomem pointers ... Fix up trivial conflicts in arch/arm/mach-omap2/Makefile, arch/arm/mach-u300/{Makefile.boot,core.c} arch/arm/plat-{mxc,omap}/devices.c
Diffstat (limited to 'arch/arm/mach-ux500/cpu.c')
-rw-r--r--arch/arm/mach-ux500/cpu.c92
1 files changed, 0 insertions, 92 deletions
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 8aa104a4711..252e8b3c570 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -11,8 +11,6 @@
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-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>
@@ -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;
@@ -57,92 +51,6 @@ void __init ux500_init_irq(void)
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