platforms/85xx/c293pcie.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * C293PCIE Board Setup
0004  *
0005  * Copyright 2013 Freescale Semiconductor Inc.
0006  */
0007
0008 #include <linux/stddef.h>
0009 #include <linux/kernel.h>
0010 #include <linux/of_fdt.h>
0011 #include <linux/of_platform.h>
0012
0013 #include <asm/machdep.h>
0014 #include <asm/udbg.h>
0015 #include <asm/mpic.h>
0016
0017 #include <sysdev/fsl_soc.h>
0018 #include <sysdev/fsl_pci.h>
0019
0020 #include "mpc85xx.h"
0021
0022 static void __init c293_pcie_pic_init(void)
0023 {
0024     struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
0025       MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC  ");
0026
0027     BUG_ON(mpic == NULL);
0028
0029     mpic_init(mpic);
0030 }
0031
0032
0033 /*
0034  * Setup the architecture
0035  */
0036 static void __init c293_pcie_setup_arch(void)
0037 {
0038     if (ppc_md.progress)
0039         ppc_md.progress("c293_pcie_setup_arch()", 0);
0040
0041     fsl_pci_assign_primary();
0042
0043     printk(KERN_INFO "C293 PCIE board from Freescale Semiconductor\n");
0044 }
0045
0046 machine_arch_initcall(c293_pcie, mpc85xx_common_publish_devices);
0047
0048 /*
0049  * Called very early, device-tree isn't unflattened
0050  */
0051 static int __init c293_pcie_probe(void)
0052 {
0053     if (of_machine_is_compatible("fsl,C293PCIE"))
0054         return 1;
0055     return 0;
0056 }
0057
0058 define_machine(c293_pcie) {
0059     .name           = "C293 PCIE",
0060     .probe          = c293_pcie_probe,
0061     .setup_arch     = c293_pcie_setup_arch,
0062     .init_IRQ       = c293_pcie_pic_init,
0063     .get_irq        = mpic_get_irq,
0064     .calibrate_decr     = generic_calibrate_decr,
0065     .progress       = udbg_progress,
0066 };