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path: root/src/drivers/uart/uart8250io.c
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Diffstat (limited to 'src/drivers/uart/uart8250io.c')
-rw-r--r--src/drivers/uart/uart8250io.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/drivers/uart/uart8250io.c b/src/drivers/uart/uart8250io.c
index 22b79e8b6b..d0841de39c 100644
--- a/src/drivers/uart/uart8250io.c
+++ b/src/drivers/uart/uart8250io.c
@@ -77,14 +77,14 @@ static void uart8250_init(unsigned int base_port, unsigned int divisor)
static const unsigned int bases[] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
-uintptr_t uart_platform_base(int idx)
+uintptr_t uart_platform_base(unsigned int idx)
{
if (idx < ARRAY_SIZE(bases))
return bases[idx];
return 0;
}
-void uart_init(int idx)
+void uart_init(unsigned int idx)
{
if (!CONFIG(DRIVERS_UART_8250IO_SKIP_INIT)) {
unsigned int div;
@@ -94,17 +94,17 @@ void uart_init(int idx)
}
}
-void uart_tx_byte(int idx, unsigned char data)
+void uart_tx_byte(unsigned int idx, unsigned char data)
{
uart8250_tx_byte(uart_platform_base(idx), data);
}
-unsigned char uart_rx_byte(int idx)
+unsigned char uart_rx_byte(unsigned int idx)
{
return uart8250_rx_byte(uart_platform_base(idx));
}
-void uart_tx_flush(int idx)
+void uart_tx_flush(unsigned int idx)
{
uart8250_tx_flush(uart_platform_base(idx));
}