--- /dev/null
+/*
+ * U-boot - blackfin_local.h
+ *
+ * Copyright (c) 2005-2007 Analog Devices Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __BLACKFIN_LOCAL_H__
+#define __BLACKFIN_LOCAL_H__
+
+#include <asm/mem_map.h>
+
+#define LO(con32) ((con32) & 0xFFFF)
+#define lo(con32) ((con32) & 0xFFFF)
+#define HI(con32) (((con32) >> 16) & 0xFFFF)
+#define hi(con32) (((con32) >> 16) & 0xFFFF)
+
+#define OFFSET_(x) (x & 0x0000FFFF)
+#define MK_BMSK_(x) (1 << x)
+
+/* Ideally this should be USEC not MSEC, but the USEC multiplication
+ * likes to overflow 32bit quantities which is all our assembler
+ * currently supports ;(
+ */
+#define USEC_PER_MSEC 1000
+#define MSEC_PER_SEC 1000
+#define BFIN_SCLK (100000000)
+#define SCLK_TO_MSEC(sclk) ((MSEC_PER_SEC * ((sclk) / USEC_PER_MSEC)) / (BFIN_SCLK / USEC_PER_MSEC))
+#define MSEC_TO_SCLK(msec) ((((BFIN_SCLK / USEC_PER_MSEC) * (msec)) / MSEC_PER_SEC) * USEC_PER_MSEC)
+
+#define L1_CACHE_SHIFT 5
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#include <linux/linkage.h>
+#include <asm/cache.h>
+
+#ifndef __ASSEMBLY__
+# ifdef SHARED_RESOURCES
+# include <asm/shared_resources.h>
+# endif
+
+# include <linux/types.h>
+
+# define bfin_revid() (bfin_read_CHIPID() >> 28)
+
+extern int bfin_os_log_check(void);
+extern void bfin_os_log_dump(void);
+
+extern void blackfin_icache_flush_range(const void *, const void *);
+extern void blackfin_dcache_flush_range(const void *, const void *);
+extern void blackfin_icache_dcache_flush_range(const void *, const void *);
+extern void blackfin_dcache_flush_invalidate_range(const void *, const void *);
+
+/* Use DMA to move data from on chip to external memory. The L1 instruction
+ * regions can only be accessed via DMA, so if the address in question is in
+ * that region, make sure we attempt to DMA indirectly.
+ */
+# ifdef __ADSPBF561__
+ /* Core B regions all need dma from Core A */
+# define addr_bfin_on_chip_mem(addr) \
+ ((((unsigned long)(addr) & 0xFFF00000) == 0xFFA00000) || \
+ (((unsigned long)(addr) & 0xFFC00000) == 0xFF400000))
+# else
+# define addr_bfin_on_chip_mem(addr) \
+ (((unsigned long)(addr) & 0xFFF00000) == 0xFFA00000)
+# endif
+
+# include <asm/system.h>
+
+#if ANOMALY_05000198
+# define NOP_PAD_ANOMALY_05000198 "nop;"
+#else
+# define NOP_PAD_ANOMALY_05000198
+#endif
+
+#define BFIN_BUG() while (1) asm volatile("emuexcpt;");
+
+#define _bfin_readX(addr, size, asm_size, asm_ext) ({ \
+ u32 __v; \
+ __asm__ __volatile__( \
+ NOP_PAD_ANOMALY_05000198 \
+ "%0 = " #asm_size "[%1]" #asm_ext ";" \
+ : "=d" (__v) \
+ : "a" (addr) \
+ ); \
+ __v; })
+#define _bfin_writeX(addr, val, size, asm_size) \
+ __asm__ __volatile__( \
+ NOP_PAD_ANOMALY_05000198 \
+ #asm_size "[%0] = %1;" \
+ : \
+ : "a" (addr), "d" ((u##size)(val)) \
+ : "memory" \
+ )
+
+#define bfin_read8(addr) _bfin_readX(addr, 8, b, (z))
+#define bfin_read16(addr) _bfin_readX(addr, 16, w, (z))
+#define bfin_read32(addr) _bfin_readX(addr, 32, , )
+#define bfin_write8(addr, val) _bfin_writeX(addr, val, 8, b)
+#define bfin_write16(addr, val) _bfin_writeX(addr, val, 16, w)
+#define bfin_write32(addr, val) _bfin_writeX(addr, val, 32, )
+
+#define bfin_read(addr) \
+({ \
+ sizeof(*(addr)) == 1 ? bfin_read8(addr) : \
+ sizeof(*(addr)) == 2 ? bfin_read16(addr) : \
+ sizeof(*(addr)) == 4 ? bfin_read32(addr) : \
+ ({ BFIN_BUG(); 0; }); \
+})
+#define bfin_write(addr, val) \
+do { \
+ switch (sizeof(*(addr))) { \
+ case 1: bfin_write8(addr, val); break; \
+ case 2: bfin_write16(addr, val); break; \
+ case 4: bfin_write32(addr, val); break; \
+ default: \
+ BFIN_BUG(); \
+ } \
+} while (0)
+
+#define bfin_write_or(addr, bits) \
+do { \
+ typeof(addr) __addr = (addr); \
+ bfin_write(__addr, bfin_read(__addr) | (bits)); \
+} while (0)
+
+#define bfin_write_and(addr, bits) \
+do { \
+ typeof(addr) __addr = (addr); \
+ bfin_write(__addr, bfin_read(__addr) & (bits)); \
+} while (0)
+
+#define bfin_readPTR(addr) bfin_read32(addr)
+#define bfin_writePTR(addr, val) bfin_write32(addr, val)
+
+/* SSYNC implementation for C file */
+static inline void SSYNC(void)
+{
+ int _tmp;
+ if (ANOMALY_05000312)
+ __asm__ __volatile__(
+ "cli %0;"
+ "nop;"
+ "nop;"
+ "ssync;"
+ "sti %0;"
+ : "=d" (_tmp)
+ );
+ else if (ANOMALY_05000244)
+ __asm__ __volatile__(
+ "nop;"
+ "nop;"
+ "nop;"
+ "ssync;"
+ );
+ else
+ __asm__ __volatile__("ssync;");
+}
+
+/* CSYNC implementation for C file */
+static inline void CSYNC(void)
+{
+ int _tmp;
+ if (ANOMALY_05000312)
+ __asm__ __volatile__(
+ "cli %0;"
+ "nop;"
+ "nop;"
+ "csync;"
+ "sti %0;"
+ : "=d" (_tmp)
+ );
+ else if (ANOMALY_05000244)
+ __asm__ __volatile__(
+ "nop;"
+ "nop;"
+ "nop;"
+ "csync;"
+ );
+ else
+ __asm__ __volatile__("csync;");
+}
+
+#else /* __ASSEMBLY__ */
+
+/* SSYNC & CSYNC implementations for assembly files */
+
+#define ssync(x) SSYNC(x)
+#define csync(x) CSYNC(x)
+
+#if ANOMALY_05000312
+#define SSYNC(scratch) cli scratch; nop; nop; SSYNC; sti scratch;
+#define CSYNC(scratch) cli scratch; nop; nop; CSYNC; sti scratch;
+
+#elif ANOMALY_05000244
+#define SSYNC(scratch) nop; nop; nop; SSYNC;
+#define CSYNC(scratch) nop; nop; nop; CSYNC;
+
+#else
+#define SSYNC(scratch) SSYNC;
+#define CSYNC(scratch) CSYNC;
+
+#endif /* ANOMALY_05000312 & ANOMALY_05000244 handling */
+
+#endif /* __ASSEMBLY__ */
+
+#endif
Code Review / kvmfornfv.git / blobdiff