summaryrefslogtreecommitdiff
path: root/common
diff options
context:
space:
mode:
authorKim Phillips <kim.phillips@freescale.com>2006-11-28 23:35:49 -0600
committerKim Phillips <kim.phillips@freescale.com>2006-11-28 23:35:49 -0600
commit32081125a028aff9e93af5281c777b0745ef8558 (patch)
tree4e4f95da64aed9db11bb245a00e5c0bead04ad23 /common
parentcf3d045e51ca8dcc6cf759827140861d6ac25c04 (diff)
parentd2c83f549378fb3fc34cb3c2e62fd772fbf8b68b (diff)
downloadu-boot-imx-32081125a028aff9e93af5281c777b0745ef8558.zip
u-boot-imx-32081125a028aff9e93af5281c777b0745ef8558.tar.gz
u-boot-imx-32081125a028aff9e93af5281c777b0745ef8558.tar.bz2
Merge http://www.denx.de/git/u-boot
Diffstat (limited to 'common')
-rw-r--r--common/Makefile2
-rw-r--r--common/altera.c27
-rw-r--r--common/cmd_bootm.c54
-rw-r--r--common/cmd_fpga.c21
-rw-r--r--common/cyclon2.c305
-rw-r--r--common/fpga.c8
-rw-r--r--common/memsize.c17
7 files changed, 393 insertions, 41 deletions
diff --git a/common/Makefile b/common/Makefile
index 07ddc95..0106088 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -41,7 +41,7 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o \
cmd_pci.o cmd_pcmcia.o cmd_portio.o \
cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o \
cmd_usb.o cmd_vfd.o \
- command.o console.o devices.o dlmalloc.o docecc.o \
+ command.o console.o cyclon2.o devices.o dlmalloc.o docecc.o \
environment.o env_common.o \
env_nand.o env_dataflash.o env_flash.o env_eeprom.o \
env_nvram.o env_nowhere.o \
diff --git a/common/altera.c b/common/altera.c
index ebd5038..06e8a95 100644
--- a/common/altera.c
+++ b/common/altera.c
@@ -50,15 +50,20 @@ int altera_load( Altera_desc *desc, void *buf, size_t bsize )
{
int ret_val = FPGA_FAIL; /* assume a failure */
- if (!altera_validate (desc, __FUNCTION__)) {
+ if (!altera_validate (desc, (char *)__FUNCTION__)) {
printf ("%s: Invalid device descriptor\n", __FUNCTION__);
} else {
switch (desc->family) {
case Altera_ACEX1K:
+ case Altera_CYC2:
#if (CONFIG_FPGA & CFG_ACEX1K)
PRINTF ("%s: Launching the ACEX1K Loader...\n",
__FUNCTION__);
ret_val = ACEX1K_load (desc, buf, bsize);
+#elif (CONFIG_FPGA & CFG_CYCLON2)
+ PRINTF ("%s: Launching the CYCLON II Loader...\n",
+ __FUNCTION__);
+ ret_val = CYC2_load (desc, buf, bsize);
#else
printf ("%s: No support for ACEX1K devices.\n",
__FUNCTION__);
@@ -78,7 +83,7 @@ int altera_dump( Altera_desc *desc, void *buf, size_t bsize )
{
int ret_val = FPGA_FAIL; /* assume a failure */
- if (!altera_validate (desc, __FUNCTION__)) {
+ if (!altera_validate (desc, (char *)__FUNCTION__)) {
printf ("%s: Invalid device descriptor\n", __FUNCTION__);
} else {
switch (desc->family) {
@@ -106,13 +111,16 @@ int altera_info( Altera_desc *desc )
{
int ret_val = FPGA_FAIL;
- if (altera_validate (desc, __FUNCTION__)) {
+ if (altera_validate (desc, (char *)__FUNCTION__)) {
printf ("Family: \t");
switch (desc->family) {
case Altera_ACEX1K:
printf ("ACEX1K\n");
break;
/* Add new family types here */
+ case Altera_CYC2:
+ printf ("CYCLON II\n");
+ break;
default:
printf ("Unknown family type, %d\n", desc->family);
}
@@ -147,8 +155,11 @@ int altera_info( Altera_desc *desc )
printf ("Device Function Table @ 0x%p\n", desc->iface_fns);
switch (desc->family) {
case Altera_ACEX1K:
+ case Altera_CYC2:
#if (CONFIG_FPGA & CFG_ACEX1K)
ACEX1K_info (desc);
+#elif (CONFIG_FPGA & CFG_CYCLON2)
+ CYC2_info (desc);
#else
/* just in case */
printf ("%s: No support for ACEX1K devices.\n",
@@ -176,7 +187,7 @@ int altera_reloc( Altera_desc *desc, ulong reloc_offset)
{
int ret_val = FPGA_FAIL; /* assume a failure */
- if (!altera_validate (desc, __FUNCTION__)) {
+ if (!altera_validate (desc, (char *)__FUNCTION__)) {
printf ("%s: Invalid device descriptor\n", __FUNCTION__);
} else {
switch (desc->family) {
@@ -188,6 +199,14 @@ int altera_reloc( Altera_desc *desc, ulong reloc_offset)
__FUNCTION__);
#endif
break;
+ case Altera_CYC2:
+#if (CONFIG_FPGA & CFG_CYCLON2)
+ ret_val = CYC2_reloc (desc, reloc_offset);
+#else
+ printf ("%s: No support for CYCLON II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
/* Add new family types here */
default:
printf ("%s: Unsupported family type, %d\n",
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 3091a58..7aae8a6 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -833,10 +833,6 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
printf ("ERROR: flat device tree size does not agree with image\n");
return;
}
-
- } else if (getenv("disable_of") == NULL) {
- printf ("ERROR: bootm needs flat device tree as third argument\n");
- return;
}
#endif
if (!data) {
@@ -913,23 +909,11 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
SHOW_BOOT_PROGRESS (15);
-#ifndef CONFIG_OF_FLAT_TREE
-
#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
unlock_ram_in_cache();
#endif
- /*
- * Linux Kernel Parameters:
- * r3: ptr to board info data
- * r4: initrd_start or 0 if no initrd
- * r5: initrd_end - unused if r4 is 0
- * r6: Start of command line string
- * r7: End of command line string
- */
- (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
-
-#else /* CONFIG_OF_FLAT_TREE */
+#ifdef CONFIG_OF_FLAT_TREE
/* move of_flat_tree if needed */
if (of_data) {
ulong of_start, of_len;
@@ -948,30 +932,36 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
of_start, of_start + of_len - 1);
memmove ((void *)of_start, (void *)of_data, of_len);
}
+#endif
- ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
- /* ft_dump_blob(of_flat_tree); */
-
-#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
- unlock_ram_in_cache();
+ /*
+ * Linux Kernel Parameters (passing board info data):
+ * r3: ptr to board info data
+ * r4: initrd_start or 0 if no initrd
+ * r5: initrd_end - unused if r4 is 0
+ * r6: Start of command line string
+ * r7: End of command line string
+ */
+#ifdef CONFIG_OF_FLAT_TREE
+ if (!of_flat_tree) /* no device tree; boot old style */
#endif
+ (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
+ /* does not return */
+
+#ifdef CONFIG_OF_FLAT_TREE
/*
- * Linux Kernel Parameters:
+ * Linux Kernel Parameters (passing device tree):
* r3: ptr to OF flat tree, followed by the board info data
* r4: physical pointer to the kernel itself
* r5: NULL
* r6: NULL
* r7: NULL
*/
- if (getenv("disable_of") != NULL)
- (*kernel) ((bd_t *)of_flat_tree, initrd_start, initrd_end,
- cmd_start, cmd_end);
- else {
- ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
- /* ft_dump_blob(of_flat_tree); */
- (*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
- }
-#endif /* CONFIG_OF_FLAT_TREE */
+ ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
+ /* ft_dump_blob(of_flat_tree); */
+
+ (*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
+#endif
}
#endif /* CONFIG_PPC */
diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
index 9a01e7d..3444091 100644
--- a/common/cmd_fpga.c
+++ b/common/cmd_fpga.c
@@ -55,6 +55,7 @@ static int fpga_get_op (char *opstr);
#define FPGA_LOAD 1
#define FPGA_LOADB 2
#define FPGA_DUMP 3
+#define FPGA_LOADMK 4
/* Convert bitstream data and load into the fpga */
int fpga_loadbitstream(unsigned long dev, char* fpgadata, size_t size)
@@ -251,6 +252,23 @@ int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
rc = fpga_loadbitstream(dev, fpga_data, data_size);
break;
+ case FPGA_LOADMK:
+ {
+ image_header_t header;
+ image_header_t *hdr = &header;
+ ulong data;
+
+ memmove (&header, (char *)fpga_data, sizeof(image_header_t));
+ if (ntohl(hdr->ih_magic) != IH_MAGIC) {
+ puts ("Bad Magic Number\n");
+ return 1;
+ }
+ data = ((ulong)fpga_data + sizeof(image_header_t));
+ data_size = ntohl(hdr->ih_size);
+ rc = fpga_load (dev, (void *)data, data_size);
+ }
+ break;
+
case FPGA_DUMP:
rc = fpga_dump (dev, fpga_data, data_size);
break;
@@ -282,6 +300,8 @@ static int fpga_get_op (char *opstr)
op = FPGA_LOADB;
} else if (!strcmp ("load", opstr)) {
op = FPGA_LOAD;
+ } else if (!strcmp ("loadmk", opstr)) {
+ op = FPGA_LOADMK;
} else if (!strcmp ("dump", opstr)) {
op = FPGA_DUMP;
}
@@ -299,5 +319,6 @@ U_BOOT_CMD (fpga, 6, 1, do_fpga,
"\tinfo\tlist known device information\n"
"\tload\tLoad device from memory buffer\n"
"\tloadb\tLoad device from bitstream buffer (Xilinx devices only)\n"
+ "\tloadmk\tLoad device generated with mkimage\n"
"\tdump\tLoad device to memory buffer\n");
#endif /* CONFIG_FPGA && CONFIG_COMMANDS & CFG_CMD_FPGA */
diff --git a/common/cyclon2.c b/common/cyclon2.c
new file mode 100644
index 0000000..dce13b5
--- /dev/null
+++ b/common/cyclon2.c
@@ -0,0 +1,305 @@
+/*
+ * (C) Copyright 2006
+ * Heiko Schocher, hs@denx.de
+ * Based on ACE1XK.c
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h> /* core U-Boot definitions */
+#include <altera.h>
+#include <ACEX1K.h> /* ACEX device family */
+
+#if (CONFIG_FPGA & (CFG_ALTERA | CFG_CYCLON2))
+
+/* Define FPGA_DEBUG to get debug printf's */
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* Note: The assumption is that we cannot possibly run fast enough to
+ * overrun the device (the Slave Parallel mode can free run at 50MHz).
+ * If there is a need to operate slower, define CONFIG_FPGA_DELAY in
+ * the board config file to slow things down.
+ */
+#ifndef CONFIG_FPGA_DELAY
+#define CONFIG_FPGA_DELAY()
+#endif
+
+#ifndef CFG_FPGA_WAIT
+#define CFG_FPGA_WAIT CFG_HZ/10 /* 100 ms */
+#endif
+
+static int CYC2_ps_load( Altera_desc *desc, void *buf, size_t bsize );
+static int CYC2_ps_dump( Altera_desc *desc, void *buf, size_t bsize );
+/* static int CYC2_ps_info( Altera_desc *desc ); */
+static int CYC2_ps_reloc( Altera_desc *desc, ulong reloc_offset );
+
+/* ------------------------------------------------------------------------- */
+/* CYCLON2 Generic Implementation */
+int CYC2_load (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ PRINTF ("%s: Launching Passive Serial Loader\n", __FUNCTION__);
+ ret_val = CYC2_ps_load (desc, buf, bsize);
+ break;
+
+ /* Add new interface types here */
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int CYC2_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ PRINTF ("%s: Launching Passive Serial Dump\n", __FUNCTION__);
+ ret_val = CYC2_ps_dump (desc, buf, bsize);
+ break;
+
+ /* Add new interface types here */
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int CYC2_info( Altera_desc *desc )
+{
+ return FPGA_SUCCESS;
+}
+
+int CYC2_reloc (Altera_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (desc->family != Altera_CYC2) {
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ return FPGA_FAIL;
+ } else
+ switch (desc->iface) {
+ case passive_serial:
+ ret_val = CYC2_ps_reloc (desc, reloc_offset);
+ break;
+
+ /* Add new interface types here */
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+/* ------------------------------------------------------------------------- */
+/* CYCLON2 Passive Serial Generic Implementation */
+static int CYC2_ps_load (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Altera_CYC2_Passive_Serial_fns *fn = desc->iface_fns;
+ int ret = 0;
+
+ PRINTF ("%s: start with interface functions @ 0x%p\n",
+ __FUNCTION__, fn);
+
+ if (fn) {
+ int cookie = desc->cookie; /* make a local copy */
+ unsigned long ts; /* timestamp */
+
+ PRINTF ("%s: Function Table:\n"
+ "ptr:\t0x%p\n"
+ "struct: 0x%p\n"
+ "config:\t0x%p\n"
+ "status:\t0x%p\n"
+ "write:\t0x%p\n"
+ "done:\t0x%p\n\n",
+ __FUNCTION__, &fn, fn, fn->config, fn->status,
+ fn->write, fn->done);
+#ifdef CFG_FPGA_PROG_FEEDBACK
+ printf ("Loading FPGA Device %d...", cookie);
+#endif
+
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /* Establish the initial state */
+ (*fn->config) (TRUE, TRUE, cookie); /* Assert nCONFIG */
+
+ udelay(2); /* T_cfg > 2us */
+
+ /* Wait for nSTATUS to be asserted */
+ ts = get_timer (0); /* get current time */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CFG_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for STATUS to go high.\n");
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+ } while (!(*fn->status) (cookie));
+
+ /* Get ready for the burn */
+ CONFIG_FPGA_DELAY ();
+
+ ret = (*fn->write) (buf, bsize, TRUE, cookie);
+ if (ret) {
+ puts ("** Write failed.\n");
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+#ifdef CFG_FPGA_PROG_FEEDBACK
+ puts(" OK? ...");
+#endif
+
+ CONFIG_FPGA_DELAY ();
+
+#ifdef CFG_FPGA_PROG_FEEDBACK
+ putc (' '); /* terminate the dotted line */
+#endif
+
+ /*
+ * Checking FPGA's CONF_DONE signal - correctly booted ?
+ */
+
+ if ( ! (*fn->done) (cookie) ) {
+ puts ("** Booting failed! CONF_DONE is still deasserted.\n");
+ (*fn->abort) (cookie);
+ return (FPGA_FAIL);
+ }
+#ifdef CFG_FPGA_PROG_FEEDBACK
+ puts(" OK\n");
+#endif
+
+ ret_val = FPGA_SUCCESS;
+
+#ifdef CFG_FPGA_PROG_FEEDBACK
+ if (ret_val == FPGA_SUCCESS) {
+ puts ("Done.\n");
+ }
+ else {
+ puts ("Fail.\n");
+ }
+#endif
+ (*fn->post) (cookie);
+
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+static int CYC2_ps_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ /* Readback is only available through the Slave Parallel and */
+ /* boundary-scan interfaces. */
+ printf ("%s: Passive Serial Dumping is unavailable\n",
+ __FUNCTION__);
+ return FPGA_FAIL;
+}
+
+static int CYC2_ps_reloc (Altera_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Altera_CYC2_Passive_Serial_fns *fn_r, *fn =
+ (Altera_CYC2_Passive_Serial_fns *) (desc->iface_fns);
+
+ if (fn) {
+ ulong addr;
+
+ /* Get the relocated table address */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Altera_CYC2_Passive_Serial_fns *) addr;
+
+ if (!fn_r->relocated) {
+
+ if (memcmp (fn_r, fn,
+ sizeof (Altera_CYC2_Passive_Serial_fns))
+ == 0) {
+ /* good copy of the table, fix the descriptor pointer */
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s: Invalid function table at 0x%p\n",
+ __FUNCTION__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__,
+ desc);
+
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Altera_pre_fn) addr;
+
+ addr = (ulong) (fn->config) + reloc_offset;
+ fn_r->config = (Altera_config_fn) addr;
+
+ addr = (ulong) (fn->status) + reloc_offset;
+ fn_r->status = (Altera_status_fn) addr;
+
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Altera_done_fn) addr;
+
+ addr = (ulong) (fn->write) + reloc_offset;
+ fn_r->write = (Altera_write_fn) addr;
+
+ addr = (ulong) (fn->abort) + reloc_offset;
+ fn_r->abort = (Altera_abort_fn) addr;
+
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Altera_post_fn) addr;
+
+ fn_r->relocated = TRUE;
+
+ } else {
+ /* this table has already been moved */
+ /* XXX - should check to see if the descriptor is correct */
+ desc->iface_fns = fn_r;
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+#endif /* (CONFIG_FPGA & (CFG_ALTERA | CFG_CYCLON2)) */
diff --git a/common/fpga.c b/common/fpga.c
index 02d3e42..2eff239 100644
--- a/common/fpga.c
+++ b/common/fpga.c
@@ -139,7 +139,7 @@ static int fpga_dev_info( int devnum )
printf( "Xilinx Device\nDescriptor @ 0x%p\n", desc );
ret_val = xilinx_info( desc->devdesc );
#else
- fpga_no_sup( __FUNCTION__, "Xilinx devices" );
+ fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
#endif
break;
case fpga_altera:
@@ -178,7 +178,7 @@ int fpga_reloc( fpga_type devtype, void *desc, ulong reloc_off )
#if CONFIG_FPGA & CFG_FPGA_XILINX
ret_val = xilinx_reloc( desc, reloc_off );
#else
- fpga_no_sup( __FUNCTION__, "Xilinx devices" );
+ fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
#endif
break;
case fpga_altera:
@@ -271,7 +271,7 @@ int fpga_load( int devnum, void *buf, size_t bsize )
#if CONFIG_FPGA & CFG_FPGA_XILINX
ret_val = xilinx_load( desc->devdesc, buf, bsize );
#else
- fpga_no_sup( __FUNCTION__, "Xilinx devices" );
+ fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
#endif
break;
case fpga_altera:
@@ -304,7 +304,7 @@ int fpga_dump( int devnum, void *buf, size_t bsize )
#if CONFIG_FPGA & CFG_FPGA_XILINX
ret_val = xilinx_dump( desc->devdesc, buf, bsize );
#else
- fpga_no_sup( __FUNCTION__, "Xilinx devices" );
+ fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
#endif
break;
case fpga_altera:
diff --git a/common/memsize.c b/common/memsize.c
index dbc812d..6c275c9 100644
--- a/common/memsize.c
+++ b/common/memsize.c
@@ -21,6 +21,16 @@
* MA 02111-1307 USA
*/
+#include <config.h>
+#ifdef __PPC__
+/*
+ * At least on G2 PowerPC cores, sequential accesses to non-existent
+ * memory must be synchronized.
+ */
+# include <asm/io.h> /* for sync() */
+#else
+# define sync() /* nothing */
+#endif
/*
* Check memory range for valid RAM. A simple memory test determines
@@ -38,20 +48,27 @@ long get_ram_size(volatile long *base, long maxsize)
for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) {
addr = base + cnt; /* pointer arith! */
+ sync ();
save[i++] = *addr;
+ sync ();
*addr = ~cnt;
}
addr = base;
+ sync ();
save[i] = *addr;
+ sync ();
*addr = 0;
+ sync ();
if ((val = *addr) != 0) {
/* Restore the original data before leaving the function.
*/
+ sync ();
*addr = save[i];
for (cnt = 1; cnt < maxsize / sizeof(long); cnt <<= 1) {
addr = base + cnt;
+ sync ();
*addr = save[--i];
}
return (0);