diff options
Diffstat (limited to 'arch/powerpc/platforms/83xx/usb.c')
| -rw-r--r-- | arch/powerpc/platforms/83xx/usb.c | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c index b45160f8d08..6a454a4087c 100644 --- a/arch/powerpc/platforms/83xx/usb.c +++ b/arch/powerpc/platforms/83xx/usb.c @@ -41,7 +41,7 @@ int mpc834x_usb_cfg(void) sicrl = in_be32(immap + MPC83XX_SICRL_OFFS) & ~MPC834X_SICRL_USB_MASK; sicrh = in_be32(immap + MPC83XX_SICRH_OFFS) & ~MPC834X_SICRH_USB_UTMI; - np = of_find_compatible_node(NULL, "usb", "fsl-usb2-dr"); + np = of_find_compatible_node(NULL, NULL, "fsl-usb2-dr"); if (np) { sccr |= MPC83XX_SCCR_USB_DRCM_11; /* 1:3 */ @@ -67,7 +67,7 @@ int mpc834x_usb_cfg(void) port0_is_dr = 1; of_node_put(np); } - np = of_find_compatible_node(NULL, "usb", "fsl-usb2-mph"); + np = of_find_compatible_node(NULL, NULL, "fsl-usb2-mph"); if (np) { sccr |= MPC83XX_SCCR_USB_MPHCM_11; /* 1:3 */ @@ -111,7 +111,7 @@ int mpc831x_usb_cfg(void) const void *dr_mode; #endif - np = of_find_compatible_node(NULL, "usb", "fsl-usb2-dr"); + np = of_find_compatible_node(NULL, NULL, "fsl-usb2-dr"); if (!np) return -ENODEV; prop = of_get_property(np, "phy_type", NULL); @@ -179,3 +179,43 @@ int mpc831x_usb_cfg(void) return ret; } #endif /* CONFIG_PPC_MPC831x */ + +#ifdef CONFIG_PPC_MPC837x +int mpc837x_usb_cfg(void) +{ + void __iomem *immap; + struct device_node *np = NULL; + const void *prop; + int ret = 0; + + np = of_find_compatible_node(NULL, NULL, "fsl-usb2-dr"); + if (!np) + return -ENODEV; + prop = of_get_property(np, "phy_type", NULL); + + if (!prop || (strcmp(prop, "ulpi") && strcmp(prop, "serial"))) { + printk(KERN_WARNING "837x USB PHY type not supported\n"); + of_node_put(np); + return -EINVAL; + } + + /* Map IMMR space for pin and clock settings */ + immap = ioremap(get_immrbase(), 0x1000); + if (!immap) { + of_node_put(np); + return -ENOMEM; + } + + /* Configure clock */ + clrsetbits_be32(immap + MPC83XX_SCCR_OFFS, MPC837X_SCCR_USB_DRCM_11, + MPC837X_SCCR_USB_DRCM_11); + + /* Configure pin mux for ULPI/serial */ + clrsetbits_be32(immap + MPC83XX_SICRL_OFFS, MPC837X_SICRL_USB_MASK, + MPC837X_SICRL_USB_ULPI); + + iounmap(immap); + of_node_put(np); + return ret; +} +#endif /* CONFIG_PPC_MPC837x */ |