rpi3: Allow runtime determination of UART base clock rate
At the moment the UART input clock rate is hard coded at compile time.
This works as long as the GPU firmware always sets up the same rate,
which does not seem to be true for the Raspberry Pi 4.
In preparation for being able to change this at runtime, add a base
clock parameter to the console setup function. This is still hardcoded
for the Raspberry Pi 3.
Change-Id: I398bc2f1e9b46f7af9a84cb0b33cbe8e78f2d900
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/plat/rpi/common/rpi3_common.c b/plat/rpi/common/rpi3_common.c
index ab63d98..4317b3a 100644
--- a/plat/rpi/common/rpi3_common.c
+++ b/plat/rpi/common/rpi3_common.c
@@ -104,14 +104,14 @@
******************************************************************************/
static console_16550_t rpi3_console;
-void rpi3_console_init(void)
+void rpi3_console_init(unsigned int base_clk_rate)
{
int console_scope = CONSOLE_FLAG_BOOT;
#if RPI3_RUNTIME_UART != -1
console_scope |= CONSOLE_FLAG_RUNTIME;
#endif
int rc = console_16550_register(PLAT_RPI3_UART_BASE,
- PLAT_RPI3_UART_CLK_IN_HZ,
+ base_clk_rate,
PLAT_RPI3_UART_BAUDRATE,
&rpi3_console);
if (rc == 0) {