#ifndef __ASSEMBLY__
#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/barriers.h>
/*
- * CP15 Barrier instructions
- * Please note that we have separate barrier instructions in ARMv7
- * However, we use the CP15 based instructtions because we use
- * -march=armv5 in U-Boot
+ * 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.
*/
-#define CP15ISB asm volatile ("mcr p15, 0, %0, c7, c5, 4" : : "r" (0))
-#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))
+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);
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 */
extern char __secure_start[];
extern char __secure_end[];
+extern char __secure_stack_start[];
+extern char __secure_stack_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