diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2015-10-07 20:19:18 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-10-21 07:46:26 -0600 |
| commit | b90ff0fdaadc4de096afed605b36aac1185fc1dc (patch) | |
| tree | 1704fb5b174bf760f990aecd0360b5a27bc4a9a4 /common | |
| parent | 9e98b7e3c5010e918d0fdfae75ab7d6995c1fa75 (diff) | |
cmd: bootvx: Pass E820 information to an x86 VxWorks kernel
E820 is critical to the kernel as it provides system memory map
information. Pass it to an x86 VxWorks kernel.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Jian Luo <jian.luo4@boschrexroth.de>
Diffstat (limited to 'common')
| -rw-r--r-- | common/cmd_elf.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/common/cmd_elf.c b/common/cmd_elf.c index da70ef3e816..d6a2036a992 100644 --- a/common/cmd_elf.c +++ b/common/cmd_elf.c @@ -18,6 +18,9 @@ #include <elf.h> #include <net.h> #include <vxworks.h> +#ifdef CONFIG_X86 +#include <asm/e820.h> +#endif /* * A very simple elf loader, assumes the image is valid, returns the @@ -214,6 +217,10 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) char *tmp; /* Temporary char pointer */ char build_buf[128]; /* Buffer for building the bootline */ int ptr = 0; +#ifdef CONFIG_X86 + struct e820info *info; + struct e820entry *data; +#endif /* * Check the loadaddr variable. @@ -336,6 +343,29 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) (char *)bootaddr); } +#ifdef CONFIG_X86 + /* + * Since E820 information is critical to the kernel, if we don't + * specify these in the environments, use a default one. + */ + tmp = getenv("e820data"); + if (tmp) + data = (struct e820entry *)simple_strtoul(tmp, NULL, 16); + else + data = (struct e820entry *)VXWORKS_E820_DATA_ADDR; + tmp = getenv("e820info"); + if (tmp) + info = (struct e820info *)simple_strtoul(tmp, NULL, 16); + else + info = (struct e820info *)VXWORKS_E820_INFO_ADDR; + + memset(info, 0, sizeof(struct e820info)); + info->sign = E820_SIGNATURE; + info->entries = install_e820_map(E820MAX, data); + info->addr = (info->entries - 1) * sizeof(struct e820entry) + + VXWORKS_E820_DATA_ADDR; +#endif + /* * If the data at the load address is an elf image, then * treat it like an elf image. Otherwise, assume that it is a |