projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| e0e8398e SO |
1 | /* |
| 2 | * ppa8548 setup and early boot code. | |
| 3 | * | |
| 4 | * Copyright 2009 Prodrive B.V.. | |
| 5 | * | |
| 6 | * By Stef van Os (see MAINTAINERS for contact information) | |
| 7 | * | |
| 8 | * Based on the SBC8548 support - Copyright 2007 Wind River Systems Inc. | |
| 9 | * Based on the MPC8548CDS support - Copyright 2005 Freescale Inc. | |
| 10 | * | |
| 11 | * This program is free software; you can redistribute it and/or modify it | |
| 12 | * under the terms of the GNU General Public License as published by the | |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 14 | * option) any later version. | |
| 15 | */ | |
| 16 | ||
| 17 | #include <linux/stddef.h> | |
| 18 | #include <linux/kernel.h> | |
| 19 | #include <linux/init.h> | |
| 20 | #include <linux/reboot.h> | |
| 21 | #include <linux/seq_file.h> | |
| 22 | #include <linux/of_platform.h> | |
| 23 | ||
| 24 | #include <asm/machdep.h> | |
| 25 | #include <asm/udbg.h> | |
| 26 | #include <asm/mpic.h> | |
| 27 | ||
| 28 | #include <sysdev/fsl_soc.h> | |
| 29 | ||
| 30 | static void __init ppa8548_pic_init(void) | |
| 31 | { | |
| 32 | struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, | |
| 33 | 0, 256, " OpenPIC "); | |
| 34 | BUG_ON(mpic == NULL); | |
| 35 | mpic_init(mpic); | |
| 36 | } | |
| 37 | ||
| 38 | /* | |
| 39 | * Setup the architecture | |
| 40 | */ | |
| 41 | static void __init ppa8548_setup_arch(void) | |
| 42 | { | |
| 43 | if (ppc_md.progress) | |
| 44 | ppc_md.progress("ppa8548_setup_arch()", 0); | |
| 45 | } | |
| 46 | ||
| 47 | static void ppa8548_show_cpuinfo(struct seq_file *m) | |
| 48 | { | |
| 49 | uint32_t svid, phid1; | |
| 50 | ||
| 51 | svid = mfspr(SPRN_SVR); | |
| 52 | ||
| 53 | seq_printf(m, "Vendor\t\t: Prodrive B.V.\n"); | |
| 54 | seq_printf(m, "SVR\t\t: 0x%x\n", svid); | |
| 55 | ||
| 56 | /* Display cpu Pll setting */ | |
| 57 | phid1 = mfspr(SPRN_HID1); | |
| 58 | seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); | |
| 59 | } | |
| 60 | ||
| 61 | static struct of_device_id __initdata of_bus_ids[] = { | |
| 62 | { .name = "soc", }, | |
| 63 | { .type = "soc", }, | |
| 64 | { .compatible = "simple-bus", }, | |
| 65 | { .compatible = "gianfar", }, | |
| 66 | { .compatible = "fsl,srio", }, | |
| 67 | {}, | |
| 68 | }; | |
| 69 | ||
| 70 | static int __init declare_of_platform_devices(void) | |
| 71 | { | |
| 72 | of_platform_bus_probe(NULL, of_bus_ids, NULL); | |
| 73 | ||
| 74 | return 0; | |
| 75 | } | |
| 76 | machine_device_initcall(ppa8548, declare_of_platform_devices); | |
| 77 | ||
| 78 | /* | |
| 79 | * Called very early, device-tree isn't unflattened | |
| 80 | */ | |
| 81 | static int __init ppa8548_probe(void) | |
| 82 | { | |
| 83 | unsigned long root = of_get_flat_dt_root(); | |
| 84 | ||
| 85 | return of_flat_dt_is_compatible(root, "ppa8548"); | |
| 86 | } | |
| 87 | ||
| 88 | define_machine(ppa8548) { | |
| 89 | .name = "ppa8548", | |
| 90 | .probe = ppa8548_probe, | |
| 91 | .setup_arch = ppa8548_setup_arch, | |
| 92 | .init_IRQ = ppa8548_pic_init, | |
| 93 | .show_cpuinfo = ppa8548_show_cpuinfo, | |
| 94 | .get_irq = mpic_get_irq, | |
| 95 | .restart = fsl_rstcr_restart, | |
| 96 | .calibrate_decr = generic_calibrate_decr, | |
| 97 | .progress = udbg_progress, | |
| 98 | }; |