Commit b81406db51a6 ("arm: serial: Add debug UART capability to the
pl01x driver") add supports to use pl01x as a debug UART. However,
due to CONFIG_IS_ENABLED macro requires CONFIG_SPL_* prefix, the
_debug_uart_init() would not choose TYPE_PL011 in SPL build. This
patch fixes the bug by judging CONFIG_DEBUG_UART_PL011 explicitly.

Signed-off-by: Chen Baozi <chenba...@phytium.com.cn>
---
 drivers/serial/serial_pl01x.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c
index 8ff19acf33..67caa063c9 100644
--- a/drivers/serial/serial_pl01x.c
+++ b/drivers/serial/serial_pl01x.c
@@ -404,8 +404,12 @@ static void _debug_uart_init(void)
 {
 #ifndef CONFIG_DEBUG_UART_SKIP_INIT
        struct pl01x_regs *regs = (struct pl01x_regs *)CONFIG_DEBUG_UART_BASE;
-       enum pl01x_type type = CONFIG_IS_ENABLED(DEBUG_UART_PL011) ?
-                               TYPE_PL011 : TYPE_PL010;
+       enum pl01x_type type;
+
+       if (IS_ENABLED(CONFIG_DEBUG_UART_PL011))
+               type = TYPE_PL011;
+       else
+               type = TYPE_PL010;
 
        pl01x_generic_serial_init(regs, type);
        pl01x_generic_setbrg(regs, type,
-- 
2.28.0

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