diff options
Diffstat (limited to 'arch/powerpc/platforms/powermac/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/powermac/setup.c | 65 |
1 files changed, 16 insertions, 49 deletions
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 2e8221e20ee8..eb092f293113 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Powermac setup and early boot code plus other random bits. * @@ -11,12 +12,6 @@ * Copyright (C) 1995 Linus Torvalds * * Maintained by Benjamin Herrenschmidt (benh@kernel.crashing.org) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ /* @@ -33,13 +28,11 @@ #include <linux/ptrace.h> #include <linux/export.h> #include <linux/user.h> -#include <linux/tty.h> #include <linux/string.h> #include <linux/delay.h> #include <linux/ioport.h> #include <linux/major.h> #include <linux/initrd.h> -#include <linux/vt_kern.h> #include <linux/console.h> #include <linux/pci.h> #include <linux/adb.h> @@ -50,13 +43,12 @@ #include <linux/root_dev.h> #include <linux/bitops.h> #include <linux/suspend.h> -#include <linux/of_device.h> +#include <linux/string_choices.h> +#include <linux/of.h> #include <linux/of_platform.h> #include <asm/reg.h> #include <asm/sections.h> -#include <asm/prom.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/pci-bridge.h> #include <asm/ohare.h> @@ -77,21 +69,14 @@ #undef SHOW_GATWICK_IRQS -int ppc_override_l2cr = 0; -int ppc_override_l2cr_value; -int has_l2cache = 0; +static int has_l2cache; int pmac_newworld; static int current_root_goodness = -1; -extern struct machdep_calls pmac_md; - -#define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */ - -#ifdef CONFIG_PPC64 -int sccdbg; -#endif +/* sda1 - slightly silly choice */ +#define DEFAULT_ROOT_DEVICE MKDEV(SCSI_DISK0_MAJOR, 1) sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN; EXPORT_SYMBOL(sys_ctrler); @@ -152,7 +137,7 @@ static void pmac_show_cpuinfo(struct seq_file *m) of_get_property(np, "d-cache-size", NULL); seq_printf(m, "L2 cache\t:"); has_l2cache = 1; - if (of_get_property(np, "cache-unified", NULL) && dc) { + if (of_property_read_bool(np, "cache-unified") && dc) { seq_printf(m, " %dK unified", *dc / 1024); } else { if (ic) @@ -174,7 +159,7 @@ static void pmac_show_cpuinfo(struct seq_file *m) } #ifndef CONFIG_ADB_CUDA -int find_via_cuda(void) +int __init find_via_cuda(void) { struct device_node *dn = of_find_node_by_name(NULL, "via-cuda"); @@ -188,7 +173,7 @@ int find_via_cuda(void) #endif #ifndef CONFIG_ADB_PMU -int find_via_pmu(void) +int __init find_via_pmu(void) { struct device_node *dn = of_find_node_by_name(NULL, "via-pmu"); @@ -202,7 +187,7 @@ int find_via_pmu(void) #endif #ifndef CONFIG_PMAC_SMU -int smu_init(void) +int __init smu_init(void) { /* should check and warn if SMU is present */ return 0; @@ -249,22 +234,15 @@ static void __init l2cr_init(void) const unsigned int *l2cr = of_get_property(np, "l2cr-value", NULL); if (l2cr) { - ppc_override_l2cr = 1; - ppc_override_l2cr_value = *l2cr; _set_L2CR(0); - _set_L2CR(ppc_override_l2cr_value); + _set_L2CR(*l2cr); + pr_info("L2CR overridden (0x%x), backside cache is %s\n", + *l2cr, str_enabled_disabled((*l2cr) & 0x80000000)); } of_node_put(np); break; } } - - if (ppc_override_l2cr) - printk(KERN_INFO "L2CR overridden (0x%x), " - "backside cache is %s\n", - ppc_override_l2cr_value, - (ppc_override_l2cr_value & 0x80000000) - ? "enabled" : "disabled"); } #endif @@ -290,7 +268,7 @@ static void __init pmac_setup_arch(void) /* 604, G3, G4 etc. */ loops_per_jiffy = *fp / HZ; else - /* 601, 603, etc. */ + /* 603, etc. */ loops_per_jiffy = *fp / (2 * HZ); of_node_put(cpu); break; @@ -304,9 +282,6 @@ static void __init pmac_setup_arch(void) of_node_put(ic); } - /* Lookup PCI hosts */ - pmac_pci_init(); - #ifdef CONFIG_PPC32 ohare_init(); l2cr_init(); @@ -316,8 +291,7 @@ static void __init pmac_setup_arch(void) find_via_pmu(); smu_init(); -#if defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE) || \ - defined(CONFIG_PPC64) +#if IS_ENABLED(CONFIG_NVRAM) pmac_nvram_init(); #endif #ifdef CONFIG_PPC32 @@ -337,13 +311,6 @@ static void __init pmac_setup_arch(void) #endif /* CONFIG_ADB */ } -#ifdef CONFIG_SCSI -void note_scsi_host(struct device_node *node, void *host) -{ -} -EXPORT_SYMBOL(note_scsi_host); -#endif - static int initializing = 1; static int pmac_late_init(void) @@ -592,7 +559,6 @@ static int __init pmac_probe(void) #ifdef CONFIG_PPC32 /* isa_io_base gets set in pmac_pci_init */ - ISA_DMA_THRESHOLD = ~0L; DMA_MODE_READ = 1; DMA_MODE_WRITE = 2; #endif /* CONFIG_PPC32 */ @@ -608,6 +574,7 @@ define_machine(powermac) { .name = "PowerMac", .probe = pmac_probe, .setup_arch = pmac_setup_arch, + .discover_phbs = pmac_pci_init, .show_cpuinfo = pmac_show_cpuinfo, .init_IRQ = pmac_pic_init, .get_irq = NULL, /* changed later */ |