projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 833e31e7 LY |
1 | /* |
| 2 | * arch/powerpc/platforms/83xx/mpc837x_mds.c | |
| 3 | * | |
| 4 | * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. | |
| 5 | * | |
| 6 | * MPC837x MDS board specific routines | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify it | |
| 9 | * under the terms of the GNU General Public License as published by the | |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 11 | * option) any later version. | |
| 12 | */ | |
| 13 | ||
| 14 | #include <linux/pci.h> | |
| 15 | #include <linux/of.h> | |
| 16 | #include <linux/of_platform.h> | |
| 17 | ||
| 18 | #include <asm/time.h> | |
| 19 | #include <asm/ipic.h> | |
| 20 | #include <asm/udbg.h> | |
| 21 | #include <asm/prom.h> | |
| 76fe1ffc | 22 | #include <sysdev/fsl_pci.h> |
| 833e31e7 LY |
23 | |
| 24 | #include "mpc83xx.h" | |
| 25 | ||
| e10241d8 LY |
26 | #define BCSR12_USB_SER_MASK 0x8a |
| 27 | #define BCSR12_USB_SER_PIN 0x80 | |
| 28 | #define BCSR12_USB_SER_DEVICE 0x02 | |
| e10241d8 LY |
29 | |
| 30 | static int mpc837xmds_usb_cfg(void) | |
| 31 | { | |
| 32 | struct device_node *np; | |
| 33 | const void *phy_type, *mode; | |
| 34 | void __iomem *bcsr_regs = NULL; | |
| 35 | u8 bcsr12; | |
| 36 | int ret; | |
| 37 | ||
| 38 | ret = mpc837x_usb_cfg(); | |
| 39 | if (ret) | |
| 40 | return ret; | |
| 41 | /* Map BCSR area */ | |
| d7f46190 | 42 | np = of_find_compatible_node(NULL, NULL, "fsl,mpc837xmds-bcsr"); |
| e10241d8 | 43 | if (np) { |
| d7f46190 | 44 | bcsr_regs = of_iomap(np, 0); |
| e10241d8 LY |
45 | of_node_put(np); |
| 46 | } | |
| 47 | if (!bcsr_regs) | |
| 48 | return -1; | |
| 49 | ||
| 50 | np = of_find_node_by_name(NULL, "usb"); | |
| fa9fc821 JL |
51 | if (!np) { |
| 52 | ret = -ENODEV; | |
| 53 | goto out; | |
| 54 | } | |
| e10241d8 LY |
55 | phy_type = of_get_property(np, "phy_type", NULL); |
| 56 | if (phy_type && !strcmp(phy_type, "ulpi")) { | |
| 57 | clrbits8(bcsr_regs + 12, BCSR12_USB_SER_PIN); | |
| 58 | } else if (phy_type && !strcmp(phy_type, "serial")) { | |
| 59 | mode = of_get_property(np, "dr_mode", NULL); | |
| 60 | bcsr12 = in_8(bcsr_regs + 12) & ~BCSR12_USB_SER_MASK; | |
| 61 | bcsr12 |= BCSR12_USB_SER_PIN; | |
| 62 | if (mode && !strcmp(mode, "peripheral")) | |
| 63 | bcsr12 |= BCSR12_USB_SER_DEVICE; | |
| 64 | out_8(bcsr_regs + 12, bcsr12); | |
| 65 | } else { | |
| 66 | printk(KERN_ERR "USB DR: unsupported PHY\n"); | |
| 67 | } | |
| 68 | ||
| 69 | of_node_put(np); | |
| fa9fc821 | 70 | out: |
| e10241d8 | 71 | iounmap(bcsr_regs); |
| fa9fc821 | 72 | return ret; |
| e10241d8 LY |
73 | } |
| 74 | ||
| 833e31e7 LY |
75 | /* ************************************************************************ |
| 76 | * | |
| 77 | * Setup the architecture | |
| 78 | * | |
| 79 | */ | |
| 80 | static void __init mpc837x_mds_setup_arch(void) | |
| 81 | { | |
| 833e31e7 LY |
82 | if (ppc_md.progress) |
| 83 | ppc_md.progress("mpc837x_mds_setup_arch()", 0); | |
| 84 | ||
| bede480d | 85 | mpc83xx_setup_pci(); |
| e10241d8 | 86 | mpc837xmds_usb_cfg(); |
| 833e31e7 LY |
87 | } |
| 88 | ||
| 7669d58c | 89 | machine_device_initcall(mpc837x_mds, mpc83xx_declare_of_platform_devices); |
| 833e31e7 | 90 | |
| 833e31e7 LY |
91 | /* |
| 92 | * Called very early, MMU is off, device-tree isn't unflattened | |
| 93 | */ | |
| 94 | static int __init mpc837x_mds_probe(void) | |
| 95 | { | |
| 56571384 | 96 | return of_machine_is_compatible("fsl,mpc837xmds"); |
| 833e31e7 LY |
97 | } |
| 98 | ||
| 99 | define_machine(mpc837x_mds) { | |
| 100 | .name = "MPC837x MDS", | |
| 101 | .probe = mpc837x_mds_probe, | |
| 102 | .setup_arch = mpc837x_mds_setup_arch, | |
| d4fb5ebd | 103 | .init_IRQ = mpc83xx_ipic_init_IRQ, |
| 833e31e7 LY |
104 | .get_irq = ipic_get_irq, |
| 105 | .restart = mpc83xx_restart, | |
| 106 | .time_init = mpc83xx_time_init, | |
| 107 | .calibrate_decr = generic_calibrate_decr, | |
| 108 | .progress = udbg_progress, | |
| 109 | }; |