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MIPS: AR7: Implement clock API

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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 <[email protected]>
Acked-by: Wim Van Sebroeck <[email protected]>
To: [email protected]
Cc: Wim Van Sebroeck <[email protected]>
Cc: [email protected]
Cc: David Miller <[email protected]>
Patchwork: http://patchwork.linux-mips.org/patch/881/
Signed-off-by: Ralf Baechle <[email protected]>
This commit is contained in:
Florian Fainelli 2010-01-27 09:10:06 +01:00 • committed by Ralf Baechle
commit 780019ddf0
6 changed files with 126 additions and 56 deletions
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10
drivers/net/cpmac.c
View file

@ -36,6 +36,7 @@
#include <linux/phy_fixed.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <asm/gpio.h>
#include <asm/atomic.h>
@ -294,9 +295,16 @@ static int cpmac_mdio_write(struct mii_bus *bus, int phy_id,
static int cpmac_mdio_reset(struct mii_bus *bus)
{
struct clk *cpmac_clk;
cpmac_clk = clk_get(&bus->dev, "cpmac");
if (IS_ERR(cpmac_clk)) {
printk(KERN_ERR "unable to get cpmac clock\n");
return -1;
}
ar7_device_reset(AR7_RESET_BIT_MDIO);
cpmac_write(bus->priv, CPMAC_MDIO_CONTROL, MDIOC_ENABLE |
MDIOC_CLKDIV(ar7_cpmac_freq() / 2200000 - 1));
MDIOC_CLKDIV(clk_get_rate(cpmac_clk) / 2200000 - 1));
return 0;
}