rockchip: Allow console device to be set by DTB.
Currently the compile-time constant PLAT_RK_UART_BASE defines
which UART is used as console device. E.g. on RK3399 it is set
to UART2. That means, that a single bl31 image can not be used
for two boards, which just differ on the UART console.
This patch addresses this limitation by parsing the "stdout-path"
property from the "chosen" node in the DTB. The expected property
string is expected to have the form "serialN:XXX", with
N being either 0, 1, 2, 3 or 4. When the property is found, it will
be used to override PLAT_RK_UART_BASE.
Tested on RK3399-Q7, with a stdout-path of "serial0:115200n8".
Signed-off-by: Christoph Müllner <christophm30@gmail.com>
Change-Id: Iafe1320e77ab006c121f8d52745d54cef68a48c7
diff --git a/plat/rockchip/common/sp_min_plat_setup.c b/plat/rockchip/common/sp_min_plat_setup.c
index 7250919..7cdbaba 100644
--- a/plat/rockchip/common/sp_min_plat_setup.c
+++ b/plat/rockchip/common/sp_min_plat_setup.c
@@ -65,7 +65,7 @@
coreboot_serial.baud,
&console);
#else
- console_16550_register(PLAT_RK_UART_BASE, PLAT_RK_UART_CLOCK,
+ console_16550_register(rockchip_get_uart_base(), PLAT_RK_UART_CLOCK,
PLAT_RK_UART_BAUDRATE, &console);
#endif
VERBOSE("sp_min_setup\n");