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-rw-r--r--arch/unicore32/Kconfig6
-rw-r--r--arch/unicore32/kernel/Makefile1
-rw-r--r--arch/unicore32/kernel/cpu-ucv2.c93
-rw-r--r--arch/unicore32/kernel/early_printk.c12
-rw-r--r--arch/unicore32/kernel/process.c27
-rw-r--r--arch/unicore32/kernel/traps.c6
-rw-r--r--arch/unicore32/mm/init.c31
-rw-r--r--arch/unicore32/mm/ioremap.c17
8 files changed, 20 insertions, 173 deletions
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 2943e3acdf0c..41bcc0013442 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -23,9 +23,6 @@ config UNICORE32
designs licensed by PKUnity Ltd.
Please see web page at <http://www.pkunity.com/>.
-config GENERIC_GPIO
- def_bool y
-
config GENERIC_CSUM
def_bool y
@@ -156,7 +153,7 @@ source "mm/Kconfig"
config LEDS
def_bool y
- depends on GENERIC_GPIO
+ depends on GPIOLIB
config ALIGNMENT_TRAP
def_bool y
@@ -219,7 +216,6 @@ if ARCH_PUV3
config PUV3_GPIO
bool
depends on !ARCH_FPGA
- select GENERIC_GPIO
select GPIO_SYSFS
default y
diff --git a/arch/unicore32/kernel/Makefile b/arch/unicore32/kernel/Makefile
index fa497e0efe5a..607a72f2ae35 100644
--- a/arch/unicore32/kernel/Makefile
+++ b/arch/unicore32/kernel/Makefile
@@ -9,7 +9,6 @@ obj-y += setup.o signal.o sys.o stacktrace.o traps.o
obj-$(CONFIG_MODULES) += ksyms.o module.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_CPU_FREQ) += cpu-ucv2.o
obj-$(CONFIG_UNICORE_FPU_F64) += fpu-ucf64.o
# obj-y for architecture PKUnity v3
diff --git a/arch/unicore32/kernel/cpu-ucv2.c b/arch/unicore32/kernel/cpu-ucv2.c
deleted file mode 100644
index 4a99f62584c7..000000000000
--- a/arch/unicore32/kernel/cpu-ucv2.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * linux/arch/unicore32/kernel/cpu-ucv2.c: clock scaling for the UniCore-II
- *
- * Code specific to PKUnity SoC and UniCore ISA
- *
- * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
- * Copyright (C) 2001-2010 Guan Xuetao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/cpufreq.h>
-
-#include <mach/hardware.h>
-
-static struct cpufreq_driver ucv2_driver;
-
-/* make sure that only the "userspace" governor is run
- * -- anything else wouldn't make sense on this platform, anyway.
- */
-int ucv2_verify_speed(struct cpufreq_policy *policy)
-{
- if (policy->cpu)
- return -EINVAL;
-
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
- return 0;
-}
-
-static unsigned int ucv2_getspeed(unsigned int cpu)
-{
- struct clk *mclk = clk_get(NULL, "MAIN_CLK");
-
- if (cpu)
- return 0;
- return clk_get_rate(mclk)/1000;
-}
-
-static int ucv2_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int cur = ucv2_getspeed(0);
- struct cpufreq_freqs freqs;
- struct clk *mclk = clk_get(NULL, "MAIN_CLK");
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
- if (!clk_set_rate(mclk, target_freq * 1000)) {
- freqs.old = cur;
- freqs.new = target_freq;
- freqs.cpu = 0;
- }
-
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
- return 0;
-}
-
-static int __init ucv2_cpu_init(struct cpufreq_policy *policy)
-{
- if (policy->cpu != 0)
- return -EINVAL;
- policy->cur = ucv2_getspeed(0);
- policy->min = policy->cpuinfo.min_freq = 250000;
- policy->max = policy->cpuinfo.max_freq = 1000000;
- policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- return 0;
-}
-
-static struct cpufreq_driver ucv2_driver = {
- .flags = CPUFREQ_STICKY,
- .verify = ucv2_verify_speed,
- .target = ucv2_target,
- .get = ucv2_getspeed,
- .init = ucv2_cpu_init,
- .name = "UniCore-II",
-};
-
-static int __init ucv2_cpufreq_init(void)
-{
- return cpufreq_register_driver(&ucv2_driver);
-}
-
-arch_initcall(ucv2_cpufreq_init);
diff --git a/arch/unicore32/kernel/early_printk.c b/arch/unicore32/kernel/early_printk.c
index 3922255f1fa8..9be0d5d02a9a 100644
--- a/arch/unicore32/kernel/early_printk.c
+++ b/arch/unicore32/kernel/early_printk.c
@@ -33,21 +33,17 @@ static struct console early_ocd_console = {
.index = -1,
};
-/* Direct interface for emergencies */
-static struct console *early_console = &early_ocd_console;
-
-static int __initdata keep_early;
-
static int __init setup_early_printk(char *buf)
{
- if (!buf)
+ int keep_early;
+
+ if (!buf || early_console)
return 0;
if (strstr(buf, "keep"))
keep_early = 1;
- if (!strncmp(buf, "ocd", 3))
- early_console = &early_ocd_console;
+ early_console = &early_ocd_console;
if (keep_early)
early_console->flags &= ~CON_BOOT;
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index 872d7e22d847..c9447691bdac 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -45,25 +45,10 @@ static const char * const processor_modes[] = {
"UK18", "UK19", "UK1A", "EXTN", "UK1C", "UK1D", "UK1E", "SUSR"
};
-void cpu_idle(void)
+void arch_cpu_idle(void)
{
- /* endless idle loop with no priority at all */
- while (1) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
- while (!need_resched()) {
- local_irq_disable();
- stop_critical_timings();
- cpu_do_idle();
- local_irq_enable();
- start_critical_timings();
- }
- rcu_idle_exit();
- tick_nohz_idle_exit();
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- }
+ cpu_do_idle();
+ local_irq_enable();
}
static char reboot_mode = 'h';
@@ -159,11 +144,7 @@ void __show_regs(struct pt_regs *regs)
unsigned long flags;
char buf[64];
- printk(KERN_DEFAULT "CPU: %d %s (%s %.*s)\n",
- raw_smp_processor_id(), print_tainted(),
- init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version);
+ show_regs_print_info(KERN_DEFAULT);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->UCreg_lr);
printk(KERN_DEFAULT "pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n"
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 0870b68d2ad9..c54e32410ead 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -170,12 +170,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
c_backtrace(fp, mode);
}
-void dump_stack(void)
-{
- dump_backtrace(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index de186bde8975..63df12d71ce3 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -66,6 +66,9 @@ void show_mem(unsigned int filter)
printk(KERN_DEFAULT "Mem-info:\n");
show_free_areas(filter);
+ if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
+ return;
+
for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
unsigned int pfn1, pfn2;
@@ -313,24 +316,6 @@ void __init bootmem_init(void)
max_pfn = max_high - PHYS_PFN_OFFSET;
}
-static inline int free_area(unsigned long pfn, unsigned long end, char *s)
-{
- unsigned int pages = 0, size = (end - pfn) << (PAGE_SHIFT - 10);
-
- for (; pfn < end; pfn++) {
- struct page *page = pfn_to_page(pfn);
- ClearPageReserved(page);
- init_page_count(page);
- __free_page(page);
- pages++;
- }
-
- if (size && s)
- printk(KERN_INFO "Freeing %s memory: %dK\n", s, size);
-
- return pages;
-}
-
static inline void
free_memmap(unsigned long start_pfn, unsigned long end_pfn)
{
@@ -404,9 +389,9 @@ void __init mem_init(void)
max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
- /* this will put all unused low memory onto the freelists */
free_unused_memmap(&meminfo);
+ /* this will put all unused low memory onto the freelists */
totalram_pages += free_all_bootmem();
reserved_pages = free_pages = 0;
@@ -491,9 +476,7 @@ void __init mem_init(void)
void free_initmem(void)
{
- totalram_pages += free_area(__phys_to_pfn(__pa(__init_begin)),
- __phys_to_pfn(__pa(__init_end)),
- "init");
+ free_initmem_default(0);
}
#ifdef CONFIG_BLK_DEV_INITRD
@@ -503,9 +486,7 @@ static int keep_initrd;
void free_initrd_mem(unsigned long start, unsigned long end)
{
if (!keep_initrd)
- totalram_pages += free_area(__phys_to_pfn(__pa(start)),
- __phys_to_pfn(__pa(end)),
- "initrd");
+ free_reserved_area(start, end, 0, "initrd");
}
static int __init keepinitrd_setup(char *__unused)
diff --git a/arch/unicore32/mm/ioremap.c b/arch/unicore32/mm/ioremap.c
index b7a605597b08..13068ee22f33 100644
--- a/arch/unicore32/mm/ioremap.c
+++ b/arch/unicore32/mm/ioremap.c
@@ -235,7 +235,7 @@ EXPORT_SYMBOL(__uc32_ioremap_cached);
void __uc32_iounmap(volatile void __iomem *io_addr)
{
void *addr = (void *)(PAGE_MASK & (unsigned long)io_addr);
- struct vm_struct **p, *tmp;
+ struct vm_struct *vm;
/*
* If this is a section based mapping we need to handle it
@@ -244,17 +244,10 @@ void __uc32_iounmap(volatile void __iomem *io_addr)
* all the mappings before the area can be reclaimed
* by someone else.
*/
- write_lock(&vmlist_lock);
- for (p = &vmlist ; (tmp = *p) ; p = &tmp->next) {
- if ((tmp->flags & VM_IOREMAP) && (tmp->addr == addr)) {
- if (tmp->flags & VM_UNICORE_SECTION_MAPPING) {
- unmap_area_sections((unsigned long)tmp->addr,
- tmp->size);
- }
- break;
- }
- }
- write_unlock(&vmlist_lock);
+ vm = find_vm_area(addr);
+ if (vm && (vm->flags & VM_IOREMAP) &&
+ (vm->flags & VM_UNICORE_SECTION_MAPPING))
+ unmap_area_sections((unsigned long)vm->addr, vm->size);
vunmap(addr);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-16 01:00:09 +0300