MIPS: call debug_uart_init right before board_init_f

All MIPS boards that support debug uart are calling debug_uart_init right at
the beginning of board_early_init_f.
Instead of doing that, let's provide a generic call to debug_uart_init right
before the call to board_init_f if debug uart is enabled for boards without
stack in SRAM.
On the other hand, boards with stack in SRAM can call earlier (right before
low level init).

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

diff --git a/arch/mips/cpu/start.S b/arch/mips/cpu/start.S
index 6740fdf9ed272eda6bc7213ad02db57fc68f7d7b..a6b7a04757d0d594c8472f6062d41c44b82c6cfb 100644 (file)
--- a/arch/mips/cpu/start.S
+++ b/arch/mips/cpu/start.S
@@ -237,6 +237,13 @@ wr_done:
 #ifdef CONFIG_MIPS_INIT_STACK_IN_SRAM
        /* Set up initial stack and global data */
        setup_stack_gd
+
+# ifdef CONFIG_DEBUG_UART
+       /* Earliest point to set up debug uart */
+       PTR_LA  t9, debug_uart_init
+       jalr    t9
+        nop
+# endif
 #endif
 
 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
@@ -263,6 +270,13 @@ wr_done:
 #ifndef CONFIG_MIPS_INIT_STACK_IN_SRAM
        /* Set up initial stack and global data */
        setup_stack_gd
+
+# ifdef CONFIG_DEBUG_UART
+       /* Earliest point to set up debug uart */
+       PTR_LA  t9, debug_uart_init
+       jalr    t9
+        nop
+# endif
 #endif
 
        move    a0, zero                # a0 <-- boot_flags = 0