diff options
Diffstat (limited to 'arch/sh/kernel/setup.c')
| -rw-r--r-- | arch/sh/kernel/setup.c | 99 |
1 files changed, 75 insertions, 24 deletions
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 3a44c753b642..039a51291002 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/sh/kernel/setup.c * @@ -6,11 +7,9 @@ * Copyright (C) 1999 Niibe Yutaka * Copyright (C) 2002 - 2010 Paul Mundt */ -#include <linux/screen_info.h> #include <linux/ioport.h> #include <linux/init.h> #include <linux/initrd.h> -#include <linux/bootmem.h> #include <linux/console.h> #include <linux/root_dev.h> #include <linux/utsname.h> @@ -32,6 +31,7 @@ #include <linux/of.h> #include <linux/of_fdt.h> #include <linux/uaccess.h> +#include <uapi/linux/mount.h> #include <asm/io.h> #include <asm/page.h> #include <asm/elf.h> @@ -42,7 +42,9 @@ #include <asm/smp.h> #include <asm/mmu_context.h> #include <asm/mmzone.h> +#include <asm/processor.h> #include <asm/sparsemem.h> +#include <asm/platform_early.h> /* * Initialize loops_per_jiffy as 10000000 (1000MIPS). @@ -66,10 +68,6 @@ EXPORT_SYMBOL(cpu_data); struct sh_machine_vector sh_mv = { .mv_name = "generic", }; EXPORT_SYMBOL(sh_mv); -#ifdef CONFIG_VT -struct screen_info screen_info; -#endif - extern int root_mountflags; #define RAMDISK_IMAGE_START_MASK 0x07FF @@ -222,7 +220,7 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn, request_resource(res, &code_resource); request_resource(res, &data_resource); request_resource(res, &bss_resource); -#ifdef CONFIG_KEXEC +#ifdef CONFIG_CRASH_RESERVE request_resource(res, &crashk_res); #endif @@ -242,7 +240,7 @@ void __init __weak plat_early_device_setup(void) { } -#ifdef CONFIG_OF_FLATTREE +#ifdef CONFIG_OF_EARLY_FLATTREE void __ref sh_fdt_init(phys_addr_t dt_phys) { static int done = 0; @@ -251,13 +249,13 @@ void __ref sh_fdt_init(phys_addr_t dt_phys) /* Avoid calling an __init function on secondary cpus. */ if (done) return; -#ifdef CONFIG_USE_BUILTIN_DTB +#ifdef CONFIG_BUILTIN_DTB dt_virt = __dtb_start; #else dt_virt = phys_to_virt(dt_phys); #endif - if (!dt_virt || !early_init_dt_scan(dt_virt)) { + if (!dt_virt || !early_init_dt_scan(dt_virt, __pa(dt_virt))) { pr_crit("Error: invalid device tree blob" " at physical address %p\n", (void *)dt_phys); @@ -288,16 +286,11 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_BLK_DEV_RAM rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK; - rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0); - rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0); #endif if (!MOUNT_ROOT_RDONLY) root_mountflags &= ~MS_RDONLY; - init_mm.start_code = (unsigned long) _text; - init_mm.end_code = (unsigned long) _etext; - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = (unsigned long) _end; + setup_initial_init_mm(_text, _etext, _edata, _end); code_resource.start = virt_to_phys(_text); code_resource.end = virt_to_phys(_etext)-1; @@ -307,9 +300,9 @@ void __init setup_arch(char **cmdline_p) bss_resource.end = virt_to_phys(__bss_stop)-1; #ifdef CONFIG_CMDLINE_OVERWRITE - strlcpy(command_line, CONFIG_CMDLINE, sizeof(command_line)); + strscpy(command_line, CONFIG_CMDLINE, sizeof(command_line)); #else - strlcpy(command_line, COMMAND_LINE, sizeof(command_line)); + strscpy(command_line, COMMAND_LINE, sizeof(command_line)); #ifdef CONFIG_CMDLINE_EXTEND strlcat(command_line, " ", sizeof(command_line)); strlcat(command_line, CONFIG_CMDLINE, sizeof(command_line)); @@ -327,14 +320,18 @@ void __init setup_arch(char **cmdline_p) sh_mv_setup(); /* Let earlyprintk output early console messages */ - early_platform_driver_probe("earlyprintk", 1, 1); - - paging_init(); + sh_early_platform_driver_probe("earlyprintk", 1, 1); -#ifdef CONFIG_DUMMY_CONSOLE - conswitchp = &dummy_con; +#ifdef CONFIG_OF_EARLY_FLATTREE +#ifdef CONFIG_BUILTIN_DTB + unflatten_and_copy_device_tree(); +#else + unflatten_device_tree(); +#endif #endif + paging_init(); + /* Perform the machine specific initialisation */ if (likely(sh_mv.mv_setup)) sh_mv.mv_setup(cmdline_p); @@ -345,7 +342,7 @@ void __init setup_arch(char **cmdline_p) /* processor boot mode configuration */ int generic_mode_pins(void) { - pr_warning("generic_mode_pins(): missing mode pin configuration\n"); + pr_warn("generic_mode_pins(): missing mode pin configuration\n"); return 0; } @@ -353,3 +350,57 @@ int test_mode_pin(int pin) { return sh_mv.mv_mode_pins() & pin; } + +void __init arch_cpu_finalize_init(void) +{ + char *p = &init_utsname()->machine[2]; /* "sh" */ + + select_idle_routine(); + + current_cpu_data.loops_per_jiffy = loops_per_jiffy; + + switch (current_cpu_data.family) { + case CPU_FAMILY_SH2: + *p++ = '2'; + break; + case CPU_FAMILY_SH2A: + *p++ = '2'; + *p++ = 'a'; + break; + case CPU_FAMILY_SH3: + *p++ = '3'; + break; + case CPU_FAMILY_SH4: + *p++ = '4'; + break; + case CPU_FAMILY_SH4A: + *p++ = '4'; + *p++ = 'a'; + break; + case CPU_FAMILY_SH4AL_DSP: + *p++ = '4'; + *p++ = 'a'; + *p++ = 'l'; + *p++ = '-'; + *p++ = 'd'; + *p++ = 's'; + *p++ = 'p'; + break; + case CPU_FAMILY_UNKNOWN: + /* + * Specifically use CPU_FAMILY_UNKNOWN rather than + * default:, so we're able to have the compiler whine + * about unhandled enumerations. + */ + break; + } + + pr_info("CPU: %s\n", get_cpu_subtype(¤t_cpu_data)); + +#ifndef __LITTLE_ENDIAN__ + /* 'eb' means 'Endian Big' */ + *p++ = 'e'; + *p++ = 'b'; +#endif + *p = '\0'; +} |