Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 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 | |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 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 | |
Dmitry Eremin-Solenikov | 543a07b | 2011-11-17 21:56:16 +0400 | [diff] [blame] | 40 | #include "mpc85xx.h" |
| 41 | |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 42 | #ifdef CONFIG_CPM2 |
| 43 | #include <asm/cpm2.h> |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 44 | #endif /* CONFIG_CPM2 */ |
| 45 | |
| 46 | static void __init tqm85xx_pic_init(void) |
| 47 | { |
Kyle Moffett | 996983b | 2011-12-02 06:28:02 +0000 | [diff] [blame] | 48 | struct mpic *mpic = mpic_alloc(NULL, 0, |
Kyle Moffett | e55d7f7 | 2011-12-22 10:19:14 +0000 | [diff] [blame] | 49 | MPIC_BIG_ENDIAN, |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 50 | 0, 256, " OpenPIC "); |
| 51 | BUG_ON(mpic == NULL); |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 52 | mpic_init(mpic); |
| 53 | |
Dmitry Eremin-Solenikov | 543a07b | 2011-11-17 21:56:16 +0400 | [diff] [blame] | 54 | mpc85xx_cpm2_pic_init(); |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 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 |
Wolfgang Grandegger | 6dd1b64 | 2008-06-06 13:50:04 +0200 | [diff] [blame] | 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 | } |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 86 | #endif |
| 87 | } |
| 88 | |
| 89 | static void tqm85xx_show_cpuinfo(struct seq_file *m) |
| 90 | { |
| 91 | uint pvid, svid, phid1; |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 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)); |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 103 | } |
| 104 | |
Dmitry Eremin-Solenikov | e9502fb | 2010-07-21 10:33:24 +0000 | [diff] [blame] | 105 | static void __init tqm85xx_ti1520_fixup(struct pci_dev *pdev) |
| 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 | |
Dmitry Eremin-Solenikov | 46d026a | 2011-11-17 21:56:17 +0400 | [diff] [blame] | 126 | machine_device_initcall(tqm85xx, mpc85xx_common_publish_devices); |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 127 | |
Grant Likely | a4f740c | 2010-10-30 11:49:09 -0400 | [diff] [blame] | 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 | |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 137 | /* |
| 138 | * Called very early, device-tree isn't unflattened |
| 139 | */ |
| 140 | static int __init tqm85xx_probe(void) |
| 141 | { |
Grant Likely | a4f740c | 2010-10-30 11:49:09 -0400 | [diff] [blame] | 142 | return of_flat_dt_match(of_get_flat_dt_root(), board); |
Kumar Gala | 0052bc5 | 2008-01-24 23:53:03 -0600 | [diff] [blame] | 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 | }; |