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-rw-r--r--drivers/serial/altera_uart.c23
1 files changed, 8 insertions, 15 deletions
diff --git a/drivers/serial/altera_uart.c b/drivers/serial/altera_uart.c
index b1609cca0ec4..7d6afc9755d5 100644
--- a/drivers/serial/altera_uart.c
+++ b/drivers/serial/altera_uart.c
@@ -391,31 +391,24 @@ int __init early_altera_uart_setup(struct altera_uart_platform_uart *platp)
return 0;
}
-static void altera_uart_console_putc(struct console *co, const char c)
+static void altera_uart_console_putc(struct uart_port *port, const char c)
{
- struct uart_port *port = &(altera_uart_ports + co->index)->port;
- int i;
+ while (!(readl(port->membase + ALTERA_UART_STATUS_REG) &
+ ALTERA_UART_STATUS_TRDY_MSK))
+ cpu_relax();
- for (i = 0; i < 0x10000; i++) {
- if (readl(port->membase + ALTERA_UART_STATUS_REG) &
- ALTERA_UART_STATUS_TRDY_MSK)
- break;
- }
writel(c, port->membase + ALTERA_UART_TXDATA_REG);
- for (i = 0; i < 0x10000; i++) {
- if (readl(port->membase + ALTERA_UART_STATUS_REG) &
- ALTERA_UART_STATUS_TRDY_MSK)
- break;
- }
}
static void altera_uart_console_write(struct console *co, const char *s,
unsigned int count)
{
+ struct uart_port *port = &(altera_uart_ports + co->index)->port;
+
for (; count; count--, s++) {
- altera_uart_console_putc(co, *s);
+ altera_uart_console_putc(port, *s);
if (*s == '\n')
- altera_uart_console_putc(co, '\r');
+ altera_uart_console_putc(port, '\r');
}
}