MIPS: AR7: Implement clock API
This patch makes the ar7 clock code implement the Linux clk API. Drivers
using the various clocks available in the SoC are updated accordingly.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
To: linux-mips@linux-mips.org
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: netdev@vger.kernel.org
Cc: David Miller <davem@davemloft.net>
Patchwork: http://patchwork.linux-mips.org/patch/881/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index 5a3fa94..1db191c 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -35,6 +35,7 @@
#include <linux/phy.h>
#include <linux/phy_fixed.h>
#include <linux/gpio.h>
+#include <linux/clk.h>
#include <asm/addrspace.h>
#include <asm/mach-ar7/ar7.h>
@@ -507,13 +508,18 @@
u32 *bootcr, val;
#ifdef CONFIG_SERIAL_8250
static struct uart_port uart_port[2] __initdata;
+ struct clk *bus_clk;
memset(uart_port, 0, sizeof(struct uart_port) * 2);
+ bus_clk = clk_get(NULL, "bus");
+ if (IS_ERR(bus_clk))
+ panic("unable to get bus clk\n");
+
uart_port[0].type = PORT_16550A;
uart_port[0].line = 0;
uart_port[0].irq = AR7_IRQ_UART0;
- uart_port[0].uartclk = ar7_bus_freq() / 2;
+ uart_port[0].uartclk = clk_get_rate(bus_clk) / 2;
uart_port[0].iotype = UPIO_MEM32;
uart_port[0].mapbase = AR7_REGS_UART0;
uart_port[0].membase = ioremap(uart_port[0].mapbase, 256);
@@ -528,7 +534,7 @@
uart_port[1].type = PORT_16550A;
uart_port[1].line = 1;
uart_port[1].irq = AR7_IRQ_UART1;
- uart_port[1].uartclk = ar7_bus_freq() / 2;
+ uart_port[1].uartclk = clk_get_rate(bus_clk) / 2;
uart_port[1].iotype = UPIO_MEM32;
uart_port[1].mapbase = UR8_REGS_UART1;
uart_port[1].membase = ioremap(uart_port[1].mapbase, 256);