ARM: Orion: SATA: Add per channel clk/clkdev support.

The Orion kirkwood chips have a gatable clock per SATA channel. Add
code to get and enable this clk if it exists.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 46d7b437490..c9fef5b7c56 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -86,7 +86,7 @@ static struct clk __init *kirkwood_register_gate(const char *name, u8 bit_idx)
 
 void __init kirkwood_clk_init(void)
 {
-        struct clk *runit, *ge0, *ge1;
+        struct clk *runit, *ge0, *ge1, *sata0, *sata1, *usb0;
 
         tclk = clk_register_fixed_rate(NULL, "tclk", NULL,
                                        CLK_IS_ROOT, kirkwood_tclk);
@@ -94,8 +94,8 @@ void __init kirkwood_clk_init(void)
         runit = kirkwood_register_gate("runit",  CGC_BIT_RUNIT);
         ge0 = kirkwood_register_gate("ge0",    CGC_BIT_GE0);
         ge1 = kirkwood_register_gate("ge1",    CGC_BIT_GE1);
-        kirkwood_register_gate("sata0",  CGC_BIT_SATA0);
-        kirkwood_register_gate("sata1",  CGC_BIT_SATA1);
+        sata0 = kirkwood_register_gate("sata0",  CGC_BIT_SATA0);
+        sata1 = kirkwood_register_gate("sata1",  CGC_BIT_SATA1);
         kirkwood_register_gate("usb0",   CGC_BIT_USB0);
         kirkwood_register_gate("sdio",   CGC_BIT_SDIO);
         kirkwood_register_gate("crypto", CGC_BIT_CRYPTO);
@@ -113,6 +113,8 @@ void __init kirkwood_clk_init(void)
         orion_clkdev_add(NULL, MV643XX_ETH_NAME ".0", ge0);
         orion_clkdev_add(NULL, MV643XX_ETH_NAME ".1", ge1);
         orion_clkdev_add(NULL, "orion_wdt", tclk);
+        orion_clkdev_add("0", "sata_mv.0", sata0);
+        orion_clkdev_add("1", "sata_mv.0", sata1);
 }
 
 /*****************************************************************************