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plat/stm32: Use generic fdt_get_stdout_node_offset() 

Now that we have an implementation for getting the node offset of the
stdout-path property in the generic fdt_wrappers code, use that to
replace the current ST platform specific implementation.

Change-Id: I5dd05684e7ca3cb563b5f71c885e1066393e057e
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Andre Przywara 2020-04-09 11:27:21 +01:00
parent 60e2e27db5
commit 7a61114da6
1 changed files with 2 additions and 48 deletions
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50
plat/st/common/stm32mp_dt.c
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@ -135,52 +135,6 @@ static int fdt_get_node_parent_size_cells(int node)
}
#endif
/*******************************************************************************
* This function gets the stdout path node.
* It reads the value indicated inside the device tree.
* Returns node offset on success and a negative FDT error code on failure.
******************************************************************************/
static int dt_get_stdout_node_offset(void)
{
int node;
const char *cchar;
node = fdt_path_offset(fdt, "/secure-chosen");
if (node < 0) {
node = fdt_path_offset(fdt, "/chosen");
if (node < 0) {
return -FDT_ERR_NOTFOUND;
}
}
cchar = fdt_getprop(fdt, node, "stdout-path", NULL);
if (cchar == NULL) {
return -FDT_ERR_NOTFOUND;
}
node = -FDT_ERR_NOTFOUND;
if (strchr(cchar, (int)':') != NULL) {
const char *name;
char *str = (char *)cchar;
int len = 0;
while (strncmp(":", str, 1)) {
len++;
str++;
}
name = fdt_get_alias_namelen(fdt, cchar, len);
if (name != NULL) {
node = fdt_path_offset(fdt, name);
}
} else {
node = fdt_path_offset(fdt, cchar);
}
return node;
}
/*******************************************************************************
* This function gets the stdout pin configuration information from the DT.
* And then calls the sub-function to treat it and set GPIO registers.
@ -190,7 +144,7 @@ int dt_set_stdout_pinctrl(void)
{
int node;
node = dt_get_stdout_node_offset();
node = fdt_get_stdout_node_offset(fdt);
if (node < 0) {
return -FDT_ERR_NOTFOUND;
}
@ -259,7 +213,7 @@ int dt_get_stdout_uart_info(struct dt_node_info *info)
{
int node;
node = dt_get_stdout_node_offset();
node = fdt_get_stdout_node_offset(fdt);
if (node < 0) {
return -FDT_ERR_NOTFOUND;
}