X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Finclude%2Fasm%2Farmv7.h;h=30e7939d8e48fa3fc897b90ee178d0001b2076fe;hb=affd4a9fa0c4f84758b2d2cdf801256f2c566bbc;hp=a13da23cf1726c6b2c4b4d22b820dd959060dffa;hpb=f10d86d3fff9f53723a404b3794cca98a785ce6a;p=u-boot

diff --git a/arch/arm/include/asm/armv7.h b/arch/arm/include/asm/armv7.h
index a13da23cf1..30e7939d8e 100644
--- a/arch/arm/include/asm/armv7.h
+++ b/arch/arm/include/asm/armv7.h
@@ -58,6 +58,7 @@
 
 #ifndef __ASSEMBLY__
 #include <linux/types.h>
+#include <asm/io.h>
 
 /*
  * CP15 Barrier instructions
@@ -69,6 +70,60 @@
 #define CP15DSB	asm volatile ("mcr     p15, 0, %0, c7, c10, 4" : : "r" (0))
 #define CP15DMB	asm volatile ("mcr     p15, 0, %0, c7, c10, 5" : : "r" (0))
 
+#ifdef __ARM_ARCH_7A__
+#define ISB	asm volatile ("isb" : : : "memory")
+#define DSB	asm volatile ("dsb" : : : "memory")
+#define DMB	asm volatile ("dmb" : : : "memory")
+#else
+#define ISB	CP15ISB
+#define DSB	CP15DSB
+#define DMB	CP15DMB
+#endif
+
+/*
+ * Workaround for ARM errata # 798870
+ * Set L2ACTLR[7] to reissue any memory transaction in the L2 that has been
+ * stalled for 1024 cycles to verify that its hazard condition still exists.
+ */
+static inline void v7_enable_l2_hazard_detect(void)
+{
+	uint32_t val;
+
+	/* L2ACTLR[7]: Enable hazard detect timeout */
+	asm volatile ("mrc     p15, 1, %0, c15, c0, 0\n\t" : "=r"(val));
+	val |= (1 << 7);
+	asm volatile ("mcr     p15, 1, %0, c15, c0, 0\n\t" : : "r"(val));
+}
+
+/*
+ * Workaround for ARM errata # 799270
+ * Ensure that the L2 logic has been used within the previous 256 cycles
+ * before modifying the ACTLR.SMP bit. This is required during boot before
+ * MMU has been enabled, or during a specified reset or power down sequence.
+ */
+static inline void v7_enable_smp(uint32_t address)
+{
+	uint32_t temp, val;
+
+	/* Read auxiliary control register */
+	asm volatile ("mrc     p15, 0, %0, c1, c0, 1\n\t" : "=r"(val));
+
+	/* Enable SMP */
+	val |= (1 << 6);
+
+	/* Dummy read to assure L2 access */
+	temp = readl(address);
+	temp &= 0;
+	val |= temp;
+
+	/* Write auxiliary control register */
+	asm volatile ("mcr     p15, 0, %0, c1, c0, 1\n\t" : : "r"(val));
+
+	CP15DSB;
+	CP15ISB;
+}
+
+void v7_en_l2_hazard_detect(void);
 void v7_outer_cache_enable(void);
 void v7_outer_cache_disable(void);
 void v7_outer_cache_flush_all(void);
@@ -76,10 +131,10 @@ void v7_outer_cache_inval_all(void);
 void v7_outer_cache_flush_range(u32 start, u32 end);
 void v7_outer_cache_inval_range(u32 start, u32 end);
 
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 
 int armv7_init_nonsec(void);
-int armv7_update_dt(void *fdt);
+int armv7_apply_memory_carveout(u64 *start, u64 *size);
 bool armv7_boot_nonsec(void);
 
 /* defined in assembly file */
@@ -91,8 +146,13 @@ void _smp_pen(void);
 extern char __secure_start[];
 extern char __secure_end[];
 
-#endif /* CONFIG_ARMV7_NONSEC || CONFIG_ARMV7_VIRT */
+#endif /* CONFIG_ARMV7_NONSEC */
 
+void v7_arch_cp15_set_l2aux_ctrl(u32 l2auxctrl, u32 cpu_midr,
+				 u32 cpu_rev_comb, u32 cpu_variant,
+				 u32 cpu_rev);
+void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
+			  u32 cpu_variant, u32 cpu_rev);
 #endif /* ! __ASSEMBLY__ */
 
 #endif