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authorSergey Temerkhanov <s.temerkhanov@gmail.com>2015-10-14 16:54:23 (GMT)
committerTom Rini <trini@konsulko.com>2016-01-19 22:25:22 (GMT)
commitb81406db51a68ddd482d4ea3641dd7ad2e910771 (patch)
tree69b639779af35794d8051db0456b35d4a549b944
parente6ac28b60be2d670948332197862e314b7977177 (diff)
downloadu-boot-b81406db51a68ddd482d4ea3641dd7ad2e910771.tar.xz
arm: serial: Add debug UART capability to the pl01x driver
This patch adds an ability to use pl01x as a debug UART. It must be configured like other types of debug UARTs Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com> Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> [trini: Update for _debug_uart_init change] Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
-rw-r--r--drivers/serial/serial_pl01x.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c
index 3a5c1d0..552c945 100644
--- a/drivers/serial/serial_pl01x.c
+++ b/drivers/serial/serial_pl01x.c
@@ -367,3 +367,31 @@ U_BOOT_DRIVER(serial_pl01x) = {
};
#endif
+
+#if defined(CONFIG_DEBUG_UART_PL010) || defined(CONFIG_DEBUG_UART_PL011)
+
+#include <debug_uart.h>
+
+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;
+
+ pl01x_generic_serial_init(regs, type);
+ pl01x_generic_setbrg(regs, type,
+ CONFIG_DEBUG_UART_CLOCK, CONFIG_BAUDRATE);
+#endif
+}
+
+static inline void _debug_uart_putc(int ch)
+{
+ struct pl01x_regs *regs = (struct pl01x_regs *)CONFIG_DEBUG_UART_BASE;
+
+ pl01x_putc(regs, ch);
+}
+
+DEBUG_UART_FUNCS
+
+#endif