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@@ -18,8 +18,9 @@
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#define KERNEL_LOAD_ADR 0x40004000
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-
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#include <linux/types.h>
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+
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+#ifdef CONFIG_ETRAX_ARCH_V32
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#include <hwregs/reg_rdwr.h>
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#include <hwregs/reg_map.h>
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#include <hwregs/ser_defs.h>
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@@ -27,6 +28,9 @@
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#ifdef CONFIG_CRIS_MACH_ARTPEC3
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#include <hwregs/clkgen_defs.h>
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#endif
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+#else
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+#include <arch/svinto.h>
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+#endif
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/*
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* gzip declarations
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@@ -35,12 +39,10 @@
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#define OF(args) args
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#define STATIC static
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-void* memset(void* s, int c, size_t n);
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-void* memcpy(void* __dest, __const void* __src,
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- size_t __n);
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-
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-#define memzero(s, n) memset ((s), 0, (n))
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+void *memset(void *s, int c, size_t n);
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+void *memcpy(void *__dest, __const void *__src, size_t __n);
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+#define memzero(s, n) memset((s), 0, (n))
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typedef unsigned char uch;
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typedef unsigned short ush;
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@@ -68,27 +70,43 @@ static unsigned outcnt = 0; /* bytes in output buffer */
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#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
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#define RESERVED 0xC0 /* bit 6,7: reserved */
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-#define get_byte() inbuf[inptr++]
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+#define get_byte() (inbuf[inptr++])
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/* Diagnostic functions */
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#ifdef DEBUG
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-# define Assert(cond,msg) {if(!(cond)) error(msg);}
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+# define Assert(cond, msg) do { \
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+ if (!(cond)) \
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+ error(msg); \
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+ } while (0)
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# define Trace(x) fprintf x
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-# define Tracev(x) {if (verbose) fprintf x ;}
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-# define Tracevv(x) {if (verbose>1) fprintf x ;}
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-# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
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-# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
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+# define Tracev(x) do { \
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+ if (verbose) \
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+ fprintf x; \
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+ } while (0)
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+# define Tracevv(x) do { \
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+ if (verbose > 1) \
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+ fprintf x; \
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+ } while (0)
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+# define Tracec(c, x) do { \
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+ if (verbose && (c)) \
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+ fprintf x; \
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+ } while (0)
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+# define Tracecv(c, x) do { \
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+ if (verbose > 1 && (c)) \
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+ fprintf x; \
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+ } while (0)
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#else
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-# define Assert(cond,msg)
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+# define Assert(cond, msg)
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# define Trace(x)
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# define Tracev(x)
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# define Tracevv(x)
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-# define Tracec(c,x)
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-# define Tracecv(c,x)
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+# define Tracec(c, x)
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+# define Tracecv(c, x)
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#endif
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static void flush_window(void);
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static void error(char *m);
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+static void puts(const char *);
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extern char *input_data; /* lives in head.S */
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@@ -96,10 +114,6 @@ static long bytes_out;
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static uch *output_data;
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static unsigned long output_ptr;
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-static void error(char *m);
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-
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-static void puts(const char *);
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-
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/* the "heap" is put directly after the BSS ends, at end */
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extern int _end;
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@@ -110,8 +124,8 @@ static long free_mem_end_ptr;
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/* decompressor info and error messages to serial console */
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-static inline void
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-serout(const char *s, reg_scope_instances regi_ser)
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+#ifdef CONFIG_ETRAX_ARCH_V32
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+static inline void serout(const char *s, reg_scope_instances regi_ser)
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{
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reg_ser_rs_stat_din rs;
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reg_ser_rw_dout dout = {.data = *s};
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@@ -123,23 +137,47 @@ serout(const char *s, reg_scope_instances regi_ser)
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REG_WR(ser, regi_ser, rw_dout, dout);
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}
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+#endif
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-static void
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-puts(const char *s)
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+static void puts(const char *s)
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{
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#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
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while (*s) {
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#ifdef CONFIG_ETRAX_DEBUG_PORT0
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+#ifdef CONFIG_ETRAX_ARCH_V32
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serout(s, regi_ser0);
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+#else
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+ while (!(*R_SERIAL0_STATUS & (1 << 5)))
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+ ;
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+ *R_SERIAL0_TR_DATA = *s++;
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+#endif
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#endif
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#ifdef CONFIG_ETRAX_DEBUG_PORT1
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+#ifdef CONFIG_ETRAX_ARCH_V32
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serout(s, regi_ser1);
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+#else
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+ while (!(*R_SERIAL1_STATUS & (1 << 5)))
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+ ;
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+ *R_SERIAL1_TR_DATA = *s++;
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+#endif
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#endif
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#ifdef CONFIG_ETRAX_DEBUG_PORT2
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+#ifdef CONFIG_ETRAX_ARCH_V32
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serout(s, regi_ser2);
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+#else
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+ while (!(*R_SERIAL2_STATUS & (1 << 5)))
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+ ;
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+ *R_SERIAL2_TR_DATA = *s++;
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+#endif
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#endif
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#ifdef CONFIG_ETRAX_DEBUG_PORT3
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+#ifdef CONFIG_ETRAX_ARCH_V32
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serout(s, regi_ser3);
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+#else
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+ while (!(*R_SERIAL3_STATUS & (1 << 5)))
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+ ;
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+ *R_SERIAL3_TR_DATA = *s++;
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+#endif
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#endif
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*s++;
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}
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@@ -147,8 +185,7 @@ puts(const char *s)
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#endif
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}
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-void*
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-memset(void* s, int c, size_t n)
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+void *memset(void *s, int c, size_t n)
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{
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int i;
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char *ss = (char*)s;
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@@ -158,14 +195,13 @@ memset(void* s, int c, size_t n)
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return s;
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}
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-void*
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-memcpy(void* __dest, __const void* __src,
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- size_t __n)
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+void *memcpy(void *__dest, __const void *__src, size_t __n)
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{
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int i;
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char *d = (char *)__dest, *s = (char *)__src;
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- for (i=0;i<__n;i++) d[i] = s[i];
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+ for (i = 0; i < __n; i++)
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+ d[i] = s[i];
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return __dest;
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}
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@@ -175,43 +211,42 @@ memcpy(void* __dest, __const void* __src,
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* (Used for the decompressed data only.)
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*/
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-static void
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-flush_window()
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+static void flush_window(void)
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{
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- ulg c = crc; /* temporary variable */
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- unsigned n;
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- uch *in, *out, ch;
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-
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- in = window;
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- out = &output_data[output_ptr];
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- for (n = 0; n < outcnt; n++) {
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- ch = *out++ = *in++;
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- c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
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- }
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- crc = c;
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- bytes_out += (ulg)outcnt;
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- output_ptr += (ulg)outcnt;
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- outcnt = 0;
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+ ulg c = crc; /* temporary variable */
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+ unsigned n;
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+ uch *in, *out, ch;
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+
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+ in = window;
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+ out = &output_data[output_ptr];
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+ for (n = 0; n < outcnt; n++) {
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+ ch = *out = *in;
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+ out++;
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+ in++;
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+ c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
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+ }
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+ crc = c;
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+ bytes_out += (ulg)outcnt;
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+ output_ptr += (ulg)outcnt;
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+ outcnt = 0;
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}
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-static void
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-error(char *x)
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+static void error(char *x)
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{
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- puts("\r\n\n");
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+ puts("\n\n");
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puts(x);
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- puts("\r\n\n -- System halted\n");
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+ puts("\n\n -- System halted\n");
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while(1); /* Halt */
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}
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-void
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-setup_normal_output_buffer(void)
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+void setup_normal_output_buffer(void)
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{
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output_data = (char *)KERNEL_LOAD_ADR;
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}
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-static inline void
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-serial_setup(reg_scope_instances regi_ser)
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+#ifdef CONFIG_ETRAX_ARCH_V32
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+static inline void serial_setup(reg_scope_instances regi_ser)
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{
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reg_ser_rw_xoff xoff;
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reg_ser_rw_tr_ctrl tr_ctrl;
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@@ -252,12 +287,16 @@ serial_setup(reg_scope_instances regi_ser)
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REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl);
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REG_WR(ser, regi_ser, rw_rec_baud_div, rec_baud);
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}
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+#endif
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-void
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-decompress_kernel(void)
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+void decompress_kernel(void)
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{
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char revision;
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+ char compile_rev;
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+#ifdef CONFIG_ETRAX_ARCH_V32
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+ /* Need at least a CRISv32 to run. */
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+ compile_rev = 32;
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#if defined(CONFIG_ETRAX_DEBUG_PORT1) || \
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defined(CONFIG_ETRAX_DEBUG_PORT2) || \
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defined(CONFIG_ETRAX_DEBUG_PORT3)
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@@ -277,6 +316,7 @@ decompress_kernel(void)
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hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
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#endif
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+
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#ifdef CONFIG_ETRAX_DEBUG_PORT0
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serial_setup(regi_ser0);
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#endif
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@@ -300,19 +340,52 @@ decompress_kernel(void)
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/* input_data is set in head.S */
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inbuf = input_data;
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+#else /* CRISv10 */
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+ /* Need at least a crisv10 to run. */
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+ compile_rev = 10;
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+
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+ /* input_data is set in head.S */
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+ inbuf = input_data;
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+
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+#ifdef CONFIG_ETRAX_DEBUG_PORT0
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+ *R_SERIAL0_XOFF = 0;
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+ *R_SERIAL0_BAUD = 0x99;
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+ *R_SERIAL0_TR_CTRL = 0x40;
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+#endif
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+#ifdef CONFIG_ETRAX_DEBUG_PORT1
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+ *R_SERIAL1_XOFF = 0;
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+ *R_SERIAL1_BAUD = 0x99;
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+ *R_SERIAL1_TR_CTRL = 0x40;
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+#endif
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+#ifdef CONFIG_ETRAX_DEBUG_PORT2
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+ *R_GEN_CONFIG = 0x08;
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+ *R_SERIAL2_XOFF = 0;
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+ *R_SERIAL2_BAUD = 0x99;
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+ *R_SERIAL2_TR_CTRL = 0x40;
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+#endif
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+#ifdef CONFIG_ETRAX_DEBUG_PORT3
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+ *R_GEN_CONFIG = 0x100;
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+ *R_SERIAL3_XOFF = 0;
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+ *R_SERIAL3_BAUD = 0x99;
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+ *R_SERIAL3_TR_CTRL = 0x40;
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+#endif
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+#endif
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setup_normal_output_buffer();
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makecrc();
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__asm__ volatile ("move $vr,%0" : "=rm" (revision));
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- if (revision < 32)
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- {
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- puts("You need an ETRAX FS to run Linux 2.6/crisv32.\r\n");
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+ if (revision < compile_rev) {
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+#ifdef CONFIG_ETRAX_ARCH_V32
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+ puts("You need an ETRAX FS to run Linux 2.6/crisv32\n");
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+#else
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+ puts("You need an ETRAX 100LX to run linux 2.6\n");
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+#endif
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while(1);
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}
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- puts("Uncompressing Linux...\r\n");
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+ puts("Uncompressing Linux...\n");
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gunzip();
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- puts("Done. Now booting the kernel.\r\n");
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+ puts("Done. Now booting the kernel\n");
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}
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