1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
4 *
5 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
6 *
7 * Copyright 2008 Freescale Semiconductor Inc.
8 *
9 * Copyright (c) 2005-2006 DENX Software Engineering
10 * Stefan Roese <sr@denx.de>
11 *
12 * Based on original work by
13 * Kumar Gala <kumar.gala@freescale.com>
14 * Copyright 2004 Freescale Semiconductor Inc.
15 */
16
17 #include <linux/stddef.h>
18 #include <linux/kernel.h>
19 #include <linux/pci.h>
20 #include <linux/kdev_t.h>
21 #include <linux/delay.h>
22 #include <linux/seq_file.h>
23 #include <linux/of.h>
24
25 #include <asm/time.h>
26 #include <asm/machdep.h>
27 #include <asm/pci-bridge.h>
28 #include <asm/mpic.h>
29 #include <mm/mmu_decl.h>
30 #include <asm/udbg.h>
31
32 #include <sysdev/fsl_soc.h>
33 #include <sysdev/fsl_pci.h>
34
35 #include "mpc85xx.h"
36
37 #ifdef CONFIG_CPM2
38 #include <asm/cpm2.h>
39 #endif /* CONFIG_CPM2 */
40
41 static void __init tqm85xx_pic_init(void)
42 {
43 struct mpic *mpic = mpic_alloc(NULL, 0,
44 MPIC_BIG_ENDIAN,
45 0, 256, " OpenPIC ");
46 BUG_ON(mpic == NULL);
47 mpic_init(mpic);
48
49 mpc85xx_cpm2_pic_init();
50 }
51
52 /*
53 * Setup the architecture
54 */
55 static void __init tqm85xx_setup_arch(void)
56 {
57 if (ppc_md.progress)
58 ppc_md.progress("tqm85xx_setup_arch()", 0);
59
60 #ifdef CONFIG_CPM2
61 cpm2_reset();
62 #endif
63
64 fsl_pci_assign_primary();
65 }
66
67 static void tqm85xx_show_cpuinfo(struct seq_file *m)
68 {
69 uint pvid, svid, phid1;
70
71 pvid = mfspr(SPRN_PVR);
72 svid = mfspr(SPRN_SVR);
73
74 seq_printf(m, "Vendor\t\t: TQ Components\n");
75 seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
76 seq_printf(m, "SVR\t\t: 0x%x\n", svid);
77
78 /* Display cpu Pll setting */
79 phid1 = mfspr(SPRN_HID1);
80 seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
81 }
82
83 static void tqm85xx_ti1520_fixup(struct pci_dev *pdev)
84 {
85 unsigned int val;
86
87 /* Do not do the fixup on other platforms! */
88 if (!machine_is(tqm85xx))
89 return;
90
91 dev_info(&pdev->dev, "Using TI 1520 fixup on TQM85xx\n");
92
93 /*
94 * Enable P2CCLK bit in system control register
95 * to enable CLOCK output to power chip
96 */
97 pci_read_config_dword(pdev, 0x80, &val);
98 pci_write_config_dword(pdev, 0x80, val | (1 << 27));
99
100 }
101 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520,
102 tqm85xx_ti1520_fixup);
103
104 machine_arch_initcall(tqm85xx, mpc85xx_common_publish_devices);
105
106 static const char * const board[] __initconst = {
107 "tqc,tqm8540",
108 "tqc,tqm8541",
109 "tqc,tqm8548",
110 "tqc,tqm8555",
111 "tqc,tqm8560",
112 NULL
113 };
114
115 define_machine(tqm85xx) {
116 .name = "TQM85xx",
117 .compatibles = board,
118 .setup_arch = tqm85xx_setup_arch,
119 .init_IRQ = tqm85xx_pic_init,
120 .show_cpuinfo = tqm85xx_show_cpuinfo,
121 .get_irq = mpic_get_irq,
122 .progress = udbg_progress,
123 };
124
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