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133 lines
2.8 KiB
133 lines
2.8 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Based on MPC8560 ADS and arch/ppc tqm85xx ports |
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* |
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* Maintained by Kumar Gala (see MAINTAINERS for contact information) |
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* |
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* Copyright 2008 Freescale Semiconductor Inc. |
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* |
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* Copyright (c) 2005-2006 DENX Software Engineering |
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* Stefan Roese <[email protected]> |
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* |
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* Based on original work by |
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* Kumar Gala <[email protected]> |
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* Copyright 2004 Freescale Semiconductor Inc. |
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*/ |
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#include <linux/stddef.h> |
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#include <linux/kernel.h> |
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#include <linux/pci.h> |
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#include <linux/kdev_t.h> |
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#include <linux/delay.h> |
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#include <linux/seq_file.h> |
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#include <linux/of_platform.h> |
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#include <asm/time.h> |
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#include <asm/machdep.h> |
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#include <asm/pci-bridge.h> |
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#include <asm/mpic.h> |
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#include <asm/prom.h> |
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#include <mm/mmu_decl.h> |
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#include <asm/udbg.h> |
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#include <sysdev/fsl_soc.h> |
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#include <sysdev/fsl_pci.h> |
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#include "mpc85xx.h" |
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#ifdef CONFIG_CPM2 |
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#include <asm/cpm2.h> |
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#endif /* CONFIG_CPM2 */ |
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static void __init tqm85xx_pic_init(void) |
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{ |
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struct mpic *mpic = mpic_alloc(NULL, 0, |
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MPIC_BIG_ENDIAN, |
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0, 256, " OpenPIC "); |
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BUG_ON(mpic == NULL); |
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mpic_init(mpic); |
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mpc85xx_cpm2_pic_init(); |
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} |
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/* |
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* Setup the architecture |
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*/ |
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static void __init tqm85xx_setup_arch(void) |
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{ |
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if (ppc_md.progress) |
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ppc_md.progress("tqm85xx_setup_arch()", 0); |
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#ifdef CONFIG_CPM2 |
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cpm2_reset(); |
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#endif |
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fsl_pci_assign_primary(); |
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} |
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static void tqm85xx_show_cpuinfo(struct seq_file *m) |
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{ |
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uint pvid, svid, phid1; |
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pvid = mfspr(SPRN_PVR); |
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svid = mfspr(SPRN_SVR); |
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seq_printf(m, "Vendor\t\t: TQ Components\n"); |
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seq_printf(m, "PVR\t\t: 0x%x\n", pvid); |
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seq_printf(m, "SVR\t\t: 0x%x\n", svid); |
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/* Display cpu Pll setting */ |
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phid1 = mfspr(SPRN_HID1); |
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seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); |
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} |
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static void tqm85xx_ti1520_fixup(struct pci_dev *pdev) |
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{ |
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unsigned int val; |
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/* Do not do the fixup on other platforms! */ |
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if (!machine_is(tqm85xx)) |
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return; |
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dev_info(&pdev->dev, "Using TI 1520 fixup on TQM85xx\n"); |
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/* |
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* Enable P2CCLK bit in system control register |
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* to enable CLOCK output to power chip |
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*/ |
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pci_read_config_dword(pdev, 0x80, &val); |
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pci_write_config_dword(pdev, 0x80, val | (1 << 27)); |
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} |
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, |
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tqm85xx_ti1520_fixup); |
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machine_arch_initcall(tqm85xx, mpc85xx_common_publish_devices); |
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static const char * const board[] __initconst = { |
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"tqc,tqm8540", |
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"tqc,tqm8541", |
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"tqc,tqm8548", |
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"tqc,tqm8555", |
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"tqc,tqm8560", |
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NULL |
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}; |
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/* |
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* Called very early, device-tree isn't unflattened |
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*/ |
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static int __init tqm85xx_probe(void) |
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{ |
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return of_device_compatible_match(of_root, board); |
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} |
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define_machine(tqm85xx) { |
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.name = "TQM85xx", |
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.probe = tqm85xx_probe, |
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.setup_arch = tqm85xx_setup_arch, |
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.init_IRQ = tqm85xx_pic_init, |
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.show_cpuinfo = tqm85xx_show_cpuinfo, |
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.get_irq = mpic_get_irq, |
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.calibrate_decr = generic_calibrate_decr, |
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.progress = udbg_progress, |
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};
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