avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/blackfin/include/asm/blackfin_local.h

@@ -0,0 +1,208 @@
+/*
+ * 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