diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index c32d40db6ba6bf661fd4c103afa74bd4a8dff9e8..49c33202843b2fb1d47814d93fd2bc014fea9e99 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -199,7 +199,7 @@ static int __init octeon_i2c_device_init(void)
 		num_ports = 1;
 
 	for (port = 0; port < num_ports; port++) {
-		octeon_i2c_data[port].sys_freq = octeon_get_clock_rate();
+		octeon_i2c_data[port].sys_freq = octeon_get_io_clock_rate();
 		/*FIXME: should be examined. At the moment is set for 100Khz */
 		octeon_i2c_data[port].i2c_freq = 100000;
 
diff --git a/arch/mips/cavium-octeon/serial.c b/arch/mips/cavium-octeon/serial.c
index 12dbf533b77dc2da263c4e0bfe9e4c2fa86c51d8..057f0ae88c994e6052892d4fc44620c0da7d26fa 100644
--- a/arch/mips/cavium-octeon/serial.c
+++ b/arch/mips/cavium-octeon/serial.c
@@ -66,7 +66,7 @@ static void __init octeon_uart_set_common(struct plat_serial8250_port *p)
 		/* Make simulator output fast*/
 		p->uartclk = 115200 * 16;
 	else
-		p->uartclk = mips_hpt_frequency;
+		p->uartclk = octeon_get_io_clock_rate();
 	p->serial_in = octeon_serial_in;
 	p->serial_out = octeon_serial_out;
 }