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cmd: bootvx: Always get VxWorks bootline from env

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So far VxWorks bootline can be contructed from various environment
variables, but when these variables do not exist we get these from
corresponding config macros. This is not helpful as it requires
rebuilding U-Boot, and to make sure these config macros take effect
we should not have these environment variables. This is a little
bit complex and confusing.

Now we change the logic to always contruct the bootline from
environments (the only single source), by adding two new variables
"bootdev" and "othbootargs", and adding some comments about network
related settings mentioning they are optional. The doc about the
bootline handling is also updated.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
master
Bin Meng 9 years ago committed by Simon Glass
parent a4092dbd81
commit 9e98b7e3c5
3 changed files with 68 additions and 85 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 12
      README
  2. 119
      common/cmd_elf.c
  3. 22
      include/vxworks.h

12
README
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@ -796,18 +796,10 @@ The following options need to be configured:
- vxWorks boot parameters:
bootvx constructs a valid bootline using the following
environments variables: bootfile, ipaddr, serverip, hostname.
environments variables: bootdev, bootfile, ipaddr, netmask,
serverip, gatewayip, hostname, othbootargs.
It loads the vxWorks image pointed bootfile.
CONFIG_SYS_VXWORKS_BOOT_DEVICE - The vxworks device name
CONFIG_SYS_VXWORKS_MAC_PTR - Ethernet 6 byte MA -address
CONFIG_SYS_VXWORKS_SERVERNAME - Name of the server
CONFIG_SYS_VXWORKS_BOOT_ADDR - Address of boot parameters
CONFIG_SYS_VXWORKS_ADD_PARAMS
Add it at the end of the bootline. E.g "u=username pw=secret"
Note: If a "bootargs" environment is defined, it will overwride
the defaults discussed just above.

119
common/cmd_elf.c
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@ -257,68 +257,83 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
/*
* Use bootaddr to find the location in memory that VxWorks
* will look for the bootline string. The default value for
* PowerPC is LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET which
* defaults to 0x4200.
* will look for the bootline string. The default value is
* (LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET) as defined by
* VxWorks BSP. For example, on PowerPC it defaults to 0x4200.
*/
tmp = getenv("bootaddr");
if (!tmp)
bootaddr = CONFIG_SYS_VXWORKS_BOOT_ADDR;
else
bootaddr = simple_strtoul(tmp, NULL, 16);
/*
* Check to see if the bootline is defined in the 'bootargs'
* parameter. If it is not defined, we may be able to
* construct the info.
*/
bootline = getenv("bootargs");
if (bootline) {
memcpy((void *)bootaddr, bootline,
max(strlen(bootline), (size_t)255));
flush_cache(bootaddr, max(strlen(bootline), (size_t)255));
if (!tmp) {
printf("## VxWorks bootline address not specified\n");
} else {
ptr = sprintf(build_buf, CONFIG_SYS_VXWORKS_BOOT_DEVICE);
tmp = getenv("bootfile");
if (tmp)
ptr += sprintf(build_buf + ptr, "%s:%s ",
CONFIG_SYS_VXWORKS_SERVERNAME, tmp);
else
ptr += sprintf(build_buf + ptr, "%s:file ",
CONFIG_SYS_VXWORKS_SERVERNAME);
bootaddr = simple_strtoul(tmp, NULL, 16);
tmp = getenv("ipaddr");
if (tmp) {
ptr += sprintf(build_buf + ptr, "e=%s", tmp);
tmp = getenv("netmask");
/*
* Check to see if the bootline is defined in the 'bootargs'
* parameter. If it is not defined, we may be able to
* construct the info.
*/
bootline = getenv("bootargs");
if (bootline) {
memcpy((void *)bootaddr, bootline,
max(strlen(bootline), (size_t)255));
flush_cache(bootaddr, max(strlen(bootline),
(size_t)255));
} else {
tmp = getenv("bootdev");
if (tmp)
ptr = sprintf(build_buf, tmp);
else
printf("## VxWorks boot device not specified\n");
tmp = getenv("bootfile");
if (tmp)
ptr += sprintf(build_buf + ptr,
"host:%s ", tmp);
else
ptr += sprintf(build_buf + ptr,
"host:vxWorks ");
/*
* The following parameters are only needed if 'bootdev'
* is an ethernet device, otherwise they are optional.
*/
tmp = getenv("ipaddr");
if (tmp) {
__be32 addr = getenv_ip("netmask").s_addr;
ptr += sprintf(build_buf + ptr, ":%08x ",
ntohl(addr));
} else {
ptr += sprintf(build_buf + ptr, " ");
ptr += sprintf(build_buf + ptr, "e=%s", tmp);
tmp = getenv("netmask");
if (tmp) {
u32 mask = getenv_ip("netmask").s_addr;
ptr += sprintf(build_buf + ptr,
":%08x ", ntohl(mask));
} else {
ptr += sprintf(build_buf + ptr, " ");
}
}
}
tmp = getenv("serverip");
if (tmp)
ptr += sprintf(build_buf + ptr, "h=%s ", tmp);
tmp = getenv("serverip");
if (tmp)
ptr += sprintf(build_buf + ptr, "h=%s ", tmp);
tmp = getenv("gatewayip");
if (tmp)
ptr += sprintf(build_buf + ptr, "g=%s ", tmp);
tmp = getenv("gatewayip");
if (tmp)
ptr += sprintf(build_buf + ptr, "g=%s ", tmp);
tmp = getenv("hostname");
if (tmp)
ptr += sprintf(build_buf + ptr, "tn=%s ", tmp);
tmp = getenv("hostname");
if (tmp)
ptr += sprintf(build_buf + ptr, "tn=%s ", tmp);
#ifdef CONFIG_SYS_VXWORKS_ADD_PARAMS
ptr += sprintf(build_buf + ptr, CONFIG_SYS_VXWORKS_ADD_PARAMS);
#endif
tmp = getenv("othbootargs");
if (tmp)
ptr += sprintf(build_buf + ptr, tmp);
memcpy((void *)bootaddr, build_buf,
max(strlen(build_buf), (size_t)255));
flush_cache(bootaddr, max(strlen(build_buf),
(size_t)255));
}
memcpy((void *)bootaddr, build_buf,
max(strlen(build_buf), (size_t)255));
flush_cache(bootaddr, max(strlen(build_buf), (size_t)255));
printf("## Using bootline (@ 0x%lx): %s\n", bootaddr,
(char *)bootaddr);
}
/*
@ -331,8 +346,6 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
else
puts("## Not an ELF image, assuming binary\n");
printf("## Using bootline (@ 0x%lx): %s\n", bootaddr,
(char *)bootaddr);
printf("## Starting vxWorks at 0x%08lx ...\n", addr);
dcache_disable();

22
include/vxworks.h
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@ -13,26 +13,4 @@ void boot_prep_vxworks(bootm_headers_t *images);
void boot_jump_vxworks(bootm_headers_t *images);
void do_bootvx_fdt(bootm_headers_t *images);
/*
* Use bootaddr to find the location in memory that VxWorks
* will look for the bootline string. The default value for
* PowerPC is LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET which
* defaults to 0x4200
*/
#ifndef CONFIG_SYS_VXWORKS_BOOT_ADDR
#define CONFIG_SYS_VXWORKS_BOOT_ADDR 0x4200
#endif
#ifndef CONFIG_SYS_VXWORKS_BOOT_DEVICE
#if defined(CONFIG_4xx)
#define CONFIG_SYS_VXWORKS_BOOT_DEVICE "emac(0,0)"
#else
#define CONFIG_SYS_VXWORKS_BOOT_DEVICE "eth(0,0)"
#endif
#endif
#ifndef CONFIG_SYS_VXWORKS_SERVERNAME
#define CONFIG_SYS_VXWORKS_SERVERNAME "srv"
#endif
#endif

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