projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 0052bc5d KG |
1 | /* |
| 2 | * Based on MPC8560 ADS and arch/ppc tqm85xx ports | |
| 3 | * | |
| 4 | * Maintained by Kumar Gala (see MAINTAINERS for contact information) | |
| 5 | * | |
| 6 | * Copyright 2008 Freescale Semiconductor Inc. | |
| 7 | * | |
| 8 | * Copyright (c) 2005-2006 DENX Software Engineering | |
| 9 | * Stefan Roese <sr@denx.de> | |
| 10 | * | |
| 11 | * Based on original work by | |
| 12 | * Kumar Gala <kumar.gala@freescale.com> | |
| 13 | * Copyright 2004 Freescale Semiconductor Inc. | |
| 14 | * | |
| 15 | * This program is free software; you can redistribute it and/or modify it | |
| 16 | * under the terms of the GNU General Public License as published by the | |
| 17 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 18 | * option) any later version. | |
| 19 | */ | |
| 20 | ||
| 21 | #include <linux/stddef.h> | |
| 22 | #include <linux/kernel.h> | |
| 23 | #include <linux/pci.h> | |
| 24 | #include <linux/kdev_t.h> | |
| 25 | #include <linux/delay.h> | |
| 26 | #include <linux/seq_file.h> | |
| 27 | #include <linux/of_platform.h> | |
| 28 | ||
| 0052bc5d KG |
29 | #include <asm/time.h> |
| 30 | #include <asm/machdep.h> | |
| 31 | #include <asm/pci-bridge.h> | |
| 32 | #include <asm/mpic.h> | |
| 33 | #include <asm/prom.h> | |
| 34 | #include <mm/mmu_decl.h> | |
| 35 | #include <asm/udbg.h> | |
| 36 | ||
| 37 | #include <sysdev/fsl_soc.h> | |
| 38 | #include <sysdev/fsl_pci.h> | |
| 39 | ||
| 543a07b1 DES |
40 | #include "mpc85xx.h" |
| 41 | ||
| 0052bc5d KG |
42 | #ifdef CONFIG_CPM2 |
| 43 | #include <asm/cpm2.h> | |
| 0052bc5d KG |
44 | #endif /* CONFIG_CPM2 */ |
| 45 | ||
| 46 | static void __init tqm85xx_pic_init(void) | |
| 47 | { | |
| 996983b7 | 48 | struct mpic *mpic = mpic_alloc(NULL, 0, |
| e55d7f73 | 49 | MPIC_BIG_ENDIAN, |
| 0052bc5d KG |
50 | 0, 256, " OpenPIC "); |
| 51 | BUG_ON(mpic == NULL); | |
| 0052bc5d KG |
52 | mpic_init(mpic); |
| 53 | ||
| 543a07b1 | 54 | mpc85xx_cpm2_pic_init(); |
| 0052bc5d KG |
55 | } |
| 56 | ||
| 57 | /* | |
| 58 | * Setup the architecture | |
| 59 | */ | |
| 60 | static void __init tqm85xx_setup_arch(void) | |
| 61 | { | |
| 62 | #ifdef CONFIG_PCI | |
| 63 | struct device_node *np; | |
| 64 | #endif | |
| 65 | ||
| 66 | if (ppc_md.progress) | |
| 67 | ppc_md.progress("tqm85xx_setup_arch()", 0); | |
| 68 | ||
| 69 | #ifdef CONFIG_CPM2 | |
| 70 | cpm2_reset(); | |
| 71 | #endif | |
| 72 | ||
| 73 | #ifdef CONFIG_PCI | |
| 6dd1b64a WG |
74 | for_each_node_by_type(np, "pci") { |
| 75 | if (of_device_is_compatible(np, "fsl,mpc8540-pci") || | |
| 76 | of_device_is_compatible(np, "fsl,mpc8548-pcie")) { | |
| 77 | struct resource rsrc; | |
| 78 | if (!of_address_to_resource(np, 0, &rsrc)) { | |
| 79 | if ((rsrc.start & 0xfffff) == 0x8000) | |
| 80 | fsl_add_bridge(np, 1); | |
| 81 | else | |
| 82 | fsl_add_bridge(np, 0); | |
| 83 | } | |
| 84 | } | |
| 85 | } | |
| 0052bc5d KG |
86 | #endif |
| 87 | } | |
| 88 | ||
| 89 | static void tqm85xx_show_cpuinfo(struct seq_file *m) | |
| 90 | { | |
| 91 | uint pvid, svid, phid1; | |
| 0052bc5d KG |
92 | |
| 93 | pvid = mfspr(SPRN_PVR); | |
| 94 | svid = mfspr(SPRN_SVR); | |
| 95 | ||
| 96 | seq_printf(m, "Vendor\t\t: TQ Components\n"); | |
| 97 | seq_printf(m, "PVR\t\t: 0x%x\n", pvid); | |
| 98 | seq_printf(m, "SVR\t\t: 0x%x\n", svid); | |
| 99 | ||
| 100 | /* Display cpu Pll setting */ | |
| 101 | phid1 = mfspr(SPRN_HID1); | |
| 102 | seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); | |
| 0052bc5d KG |
103 | } |
| 104 | ||
| 492bf4f2 | 105 | static void __devinit tqm85xx_ti1520_fixup(struct pci_dev *pdev) |
| e9502fbe DES |
106 | { |
| 107 | unsigned int val; | |
| 108 | ||
| 109 | /* Do not do the fixup on other platforms! */ | |
| 110 | if (!machine_is(tqm85xx)) | |
| 111 | return; | |
| 112 | ||
| 113 | dev_info(&pdev->dev, "Using TI 1520 fixup on TQM85xx\n"); | |
| 114 | ||
| 115 | /* | |
| 116 | * Enable P2CCLK bit in system control register | |
| 117 | * to enable CLOCK output to power chip | |
| 118 | */ | |
| 119 | pci_read_config_dword(pdev, 0x80, &val); | |
| 120 | pci_write_config_dword(pdev, 0x80, val | (1 << 27)); | |
| 121 | ||
| 122 | } | |
| 123 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, | |
| 124 | tqm85xx_ti1520_fixup); | |
| 125 | ||
| 46d026ac | 126 | machine_device_initcall(tqm85xx, mpc85xx_common_publish_devices); |
| 0052bc5d | 127 | |
| a4f740cf GL |
128 | static const char *board[] __initdata = { |
| 129 | "tqc,tqm8540", | |
| 130 | "tqc,tqm8541", | |
| 131 | "tqc,tqm8548", | |
| 132 | "tqc,tqm8555", | |
| 133 | "tqc,tqm8560", | |
| 134 | NULL | |
| 135 | }; | |
| 136 | ||
| 0052bc5d KG |
137 | /* |
| 138 | * Called very early, device-tree isn't unflattened | |
| 139 | */ | |
| 140 | static int __init tqm85xx_probe(void) | |
| 141 | { | |
| a4f740cf | 142 | return of_flat_dt_match(of_get_flat_dt_root(), board); |
| 0052bc5d KG |
143 | } |
| 144 | ||
| 145 | define_machine(tqm85xx) { | |
| 146 | .name = "TQM85xx", | |
| 147 | .probe = tqm85xx_probe, | |
| 148 | .setup_arch = tqm85xx_setup_arch, | |
| 149 | .init_IRQ = tqm85xx_pic_init, | |
| 150 | .show_cpuinfo = tqm85xx_show_cpuinfo, | |
| 151 | .get_irq = mpic_get_irq, | |
| 152 | .restart = fsl_rstcr_restart, | |
| 153 | .calibrate_decr = generic_calibrate_decr, | |
| 154 | .progress = udbg_progress, | |
| 155 | }; |