Add support of environment location with a new sandbox command 'env_loc'.
When the user change the environment location with the command 'env_loc <location>' the env is reinitialized and saved; the GD_FLG_ENV_DEFAULT flag is also updated.
When the user set the same env location, the environment is re-loaded.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
board/sandbox/sandbox.c | 40 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/board/sandbox/sandbox.c b/board/sandbox/sandbox.c index 01f356be31..023a71d5f0 100644 --- a/board/sandbox/sandbox.c +++ b/board/sandbox/sandbox.c @@ -21,6 +21,9 @@ */ gd_t *gd;
+/* env location: current location used during test */ +static enum env_location sandbox_env_location = ENVL_NOWHERE; + /* Add a simple GPIO device */ U_BOOT_DEVICE(gpio_sandbox) = { .name = "gpio_sandbox", @@ -53,9 +56,44 @@ enum env_location env_get_location(enum env_operation op, int prio)
gd->env_load_prio = 0;
- return ENVL_NOWHERE; + return sandbox_env_location; }
+static int do_env_loc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + enum env_location loc; + + if (argc < 2) + return CMD_RET_USAGE; + + loc = (enum env_location)simple_strtoul(argv[1], NULL, 10); + if (loc >= ENVL_COUNT) + return CMD_RET_FAILURE; + + if (sandbox_env_location != loc) { + sandbox_env_location = loc; + if (loc == ENVL_NOWHERE) { + gd->flags |= GD_FLG_ENV_DEFAULT; + gd->env_valid = ENV_VALID; + } else { + if (gd->flags & GD_FLG_ENV_DEFAULT) { + gd->flags &= ~GD_FLG_ENV_DEFAULT; + if (!env_init()) + env_save(); + } + } + } else { + if (!env_init()) + env_load(); + } + + return CMD_RET_SUCCESS; +} + +U_BOOT_CMD(env_loc, 2, 1, do_env_loc, + "set the environment location", "[loc]" +); + int dram_init(void) { gd->ram_size = CONFIG_SYS_SDRAM_SIZE;