Merge branch 'for-linus' of git://neil.brown.name/md

[pandora-kernel.git] / arch / powerpc / platforms / 85xx / mpc85xx_mds.c

diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 25f8bc7..43a459f 100644 (file)
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -32,6 +32,7 @@
 #include <linux/fsl_devices.h>
 #include <linux/of_platform.h>
 #include <linux/of_device.h>
+#include <linux/phy.h>
 
 #include <asm/system.h>
 #include <asm/atomic.h>
@@ -56,6 +57,95 @@
 #define DBG(fmt...)
 #endif
 
+#define MV88E1111_SCR  0x10
+#define MV88E1111_SCR_125CLK   0x0010
+static int mpc8568_fixup_125_clock(struct phy_device *phydev)
+{
+       int scr;
+       int err;
+
+       /* Workaround for the 125 CLK Toggle */
+       scr = phy_read(phydev, MV88E1111_SCR);
+
+       if (scr < 0)
+               return scr;
+
+       err = phy_write(phydev, MV88E1111_SCR, scr & ~(MV88E1111_SCR_125CLK));
+
+       if (err)
+               return err;
+
+       err = phy_write(phydev, MII_BMCR, BMCR_RESET);
+
+       if (err)
+               return err;
+
+       scr = phy_read(phydev, MV88E1111_SCR);
+
+       if (scr < 0)
+               return err;
+
+       err = phy_write(phydev, MV88E1111_SCR, scr | 0x0008);
+
+       return err;
+}
+
+static int mpc8568_mds_phy_fixups(struct phy_device *phydev)
+{
+       int temp;
+       int err;
+
+       /* Errata */
+       err = phy_write(phydev,29, 0x0006);
+
+       if (err)
+               return err;
+
+       temp = phy_read(phydev, 30);
+
+       if (temp < 0)
+               return temp;
+
+       temp = (temp & (~0x8000)) | 0x4000;
+       err = phy_write(phydev,30, temp);
+
+       if (err)
+               return err;
+
+       err = phy_write(phydev,29, 0x000a);
+
+       if (err)
+               return err;
+
+       temp = phy_read(phydev, 30);
+
+       if (temp < 0)
+               return temp;
+
+       temp = phy_read(phydev, 30);
+
+       if (temp < 0)
+               return temp;
+
+       temp &= ~0x0020;
+
+       err = phy_write(phydev,30,temp);
+
+       if (err)
+               return err;
+
+       /* Disable automatic MDI/MDIX selection */
+       temp = phy_read(phydev, 16);
+
+       if (temp < 0)
+               return temp;
+
+       temp &= ~0x0060;
+       err = phy_write(phydev,16,temp);
+
+       return err;
+}
+
 /* ************************************************************************
  *
  * Setup the architecture
@@ -64,7 +154,7 @@
 static void __init mpc85xx_mds_setup_arch(void)
 {
        struct device_node *np;
-       static u8 *bcsr_regs = NULL;
+       static u8 __iomem *bcsr_regs = NULL;
 
        if (ppc_md.progress)
                ppc_md.progress("mpc85xx_mds_setup_arch()", 0);
@@ -138,6 +228,35 @@ static void __init mpc85xx_mds_setup_arch(void)
 #endif /* CONFIG_QUICC_ENGINE */
 }
 
+
+static int __init board_fixups(void)
+{
+       char phy_id[BUS_ID_SIZE];
+       char *compstrs[2] = {"fsl,gianfar-mdio", "fsl,ucc-mdio"};
+       struct device_node *mdio;
+       struct resource res;
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(compstrs); i++) {
+               mdio = of_find_compatible_node(NULL, NULL, compstrs[i]);
+
+               of_address_to_resource(mdio, 0, &res);
+               snprintf(phy_id, BUS_ID_SIZE, "%x:%02x", res.start, 1);
+
+               phy_register_fixup_for_id(phy_id, mpc8568_fixup_125_clock);
+               phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups);
+
+               /* Register a workaround for errata */
+               snprintf(phy_id, BUS_ID_SIZE, "%x:%02x", res.start, 7);
+               phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups);
+
+               of_node_put(mdio);
+       }
+
+       return 0;
+}
+machine_arch_initcall(mpc85xx_mds, board_fixups);
+
 static struct of_device_id mpc85xx_ids[] = {
        { .type = "soc", },
        { .compatible = "soc", },