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sandbox: Add a -T flag to use the test device tree

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U-Boot already supports using -D to indicate that it should use the normal
device tree. It is sometimes useful to run with the test device tree, e.g.
when running a test. Add a -T option for this along with some
documentation.

It can be used like this:

   /tmp/b/sandbox/u-boot -T -c "ut dm pci_busdev"

(this will use /tmp/b/sandbox/arch/sandbox/dts/test.dtb as the DT)

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-09-25 08:56:07 -06:00 committed by Bin Meng
parent 37a1cf9c9c
commit 189882c933
2 changed files with 34 additions and 0 deletions
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25
arch/sandbox/cpu/start.c
View file

@ -147,6 +147,31 @@ static int sandbox_cmdline_cb_default_fdt(struct sandbox_state *state,
SANDBOX_CMDLINE_OPT_SHORT(default_fdt, 'D', 0,
"Use the default u-boot.dtb control FDT in U-Boot directory");
static int sandbox_cmdline_cb_test_fdt(struct sandbox_state *state,
const char *arg)
{
const char *fmt = "/arch/sandbox/dts/test.dtb";
char *p;
char *fname;
int len;
len = strlen(state->argv[0]) + strlen(fmt) + 1;
fname = os_malloc(len);
if (!fname)
return -ENOMEM;
strcpy(fname, state->argv[0]);
p = strrchr(fname, '/');
if (!p)
p = fname + strlen(fname);
len -= p - fname;
snprintf(p, len, fmt, p);
state->fdt_fname = fname;
return 0;
}
SANDBOX_CMDLINE_OPT_SHORT(test_fdt, 'T', 0,
"Use the test.dtb control FDT in U-Boot directory");
static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
const char *arg)
{

9
doc/arch/sandbox.rst
View file

@ -103,6 +103,8 @@ A device tree binary file can be provided with -d. If you edit the source
(it is stored at arch/sandbox/dts/sandbox.dts) you must rebuild U-Boot to
recreate the binary file.
To use the default device tree, use -D. To use the test device tree, use -T.
To execute commands directly, use the -c option. You can specify a single
command, or multiple commands separated by a semicolon, as is normal in
U-Boot. Be careful with quoting as the shell will normally process and
@ -499,6 +501,13 @@ run natively on your board if desired (and enabled).
To run all tests use "make check".
To run a single test in an existing sandbox build, you can use -T to use the
test device tree, and -c to select the test:
/tmp/b/sandbox/u-boot -T -c "ut dm pci_busdev"
This runs dm_test_pci_busdev() which is in test/dm/pci.c
Memory Map
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