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92 lines
2.0 KiB
92 lines
2.0 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* ppa8548 setup and early boot code. |
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* |
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* Copyright 2009 Prodrive B.V.. |
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* |
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* By Stef van Os (see MAINTAINERS for contact information) |
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* |
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* Based on the SBC8548 support - Copyright 2007 Wind River Systems Inc. |
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* Based on the MPC8548CDS support - Copyright 2005 Freescale 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/init.h> |
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#include <linux/reboot.h> |
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#include <linux/seq_file.h> |
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#include <linux/of_fdt.h> |
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#include <linux/of_platform.h> |
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#include <asm/machdep.h> |
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#include <asm/udbg.h> |
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#include <asm/mpic.h> |
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#include <sysdev/fsl_soc.h> |
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static void __init ppa8548_pic_init(void) |
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{ |
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struct mpic *mpic = mpic_alloc(NULL, 0, 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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} |
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/* |
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* Setup the architecture |
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*/ |
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static void __init ppa8548_setup_arch(void) |
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{ |
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if (ppc_md.progress) |
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ppc_md.progress("ppa8548_setup_arch()", 0); |
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} |
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static void ppa8548_show_cpuinfo(struct seq_file *m) |
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{ |
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uint32_t svid, phid1; |
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svid = mfspr(SPRN_SVR); |
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seq_printf(m, "Vendor\t\t: Prodrive B.V.\n"); |
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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 const struct of_device_id of_bus_ids[] __initconst = { |
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{ .name = "soc", }, |
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{ .type = "soc", }, |
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{ .compatible = "simple-bus", }, |
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{ .compatible = "gianfar", }, |
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{ .compatible = "fsl,srio", }, |
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{}, |
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}; |
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static int __init declare_of_platform_devices(void) |
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{ |
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of_platform_bus_probe(NULL, of_bus_ids, NULL); |
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return 0; |
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} |
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machine_device_initcall(ppa8548, declare_of_platform_devices); |
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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 ppa8548_probe(void) |
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{ |
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return of_machine_is_compatible("ppa8548"); |
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} |
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define_machine(ppa8548) { |
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.name = "ppa8548", |
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.probe = ppa8548_probe, |
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.setup_arch = ppa8548_setup_arch, |
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.init_IRQ = ppa8548_pic_init, |
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.show_cpuinfo = ppa8548_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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