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author | Hauke Mehrtens <hauke@hauke-m.de> | 2010-01-31 15:09:16 +0000 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2010-01-31 15:09:16 +0000 |
commit | ff2cfb00ef46e838f47334613d6699cf2132f290 (patch) | |
tree | 878e6f133ff57be441a3b335515de32a86fb2536 /target/linux/amazon/patches-2.6.30/220-fix_timer.patch | |
parent | 999e9277ecb1f959e2043869e1442b6af93658b6 (diff) | |
download | upstream-ff2cfb00ef46e838f47334613d6699cf2132f290.tar.gz upstream-ff2cfb00ef46e838f47334613d6699cf2132f290.tar.bz2 upstream-ff2cfb00ef46e838f47334613d6699cf2132f290.zip |
Apply patch 220-fix_timer.patch directly
SVN-Revision: 19456
Diffstat (limited to 'target/linux/amazon/patches-2.6.30/220-fix_timer.patch')
-rw-r--r-- | target/linux/amazon/patches-2.6.30/220-fix_timer.patch | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/target/linux/amazon/patches-2.6.30/220-fix_timer.patch b/target/linux/amazon/patches-2.6.30/220-fix_timer.patch deleted file mode 100644 index 6408b88f91..0000000000 --- a/target/linux/amazon/patches-2.6.30/220-fix_timer.patch +++ /dev/null @@ -1,93 +0,0 @@ ---- a/arch/mips/amazon/setup.c -+++ b/arch/mips/amazon/setup.c -@@ -36,6 +36,12 @@ - #include <asm/amazon/irq.h> - #include <asm/amazon/model.h> - -+static unsigned int r4k_offset; -+static unsigned int r4k_cur; -+ -+/* required in arch/mips/kernel/kspd.c */ -+unsigned long cpu_khz; -+ - extern void prom_printf(const char * fmt, ...); - static void amazon_reboot_setup(void); - -@@ -91,35 +97,32 @@ unsigned int amazon_get_cpu_ver(void) - return cpu_ver; - } - --void amazon_time_init(void) -+static inline u32 amazon_get_counter_resolution(void) - { -- mips_hpt_frequency = amazon_get_cpu_hz()/2; -- printk("mips_hpt_frequency:%d\n", mips_hpt_frequency); -+ u32 res; -+ __asm__ __volatile__( -+ ".set push\n" -+ ".set mips32r2\n" -+ ".set noreorder\n" -+ "rdhwr %0, $3\n" -+ "ehb\n" -+ ".set pop\n" -+ : "=&r" (res) -+ : /* no input */ -+ : "memory"); -+ instruction_hazard(); -+ return res; - } - --extern int hr_time_resolution; -- --/* ISR GPTU Timer 6 for high resolution timer */ --static void amazon_timer6_interrupt(int irq, void *dev_id) -+void __init plat_time_init(void) - { -- timer_interrupt(AMAZON_TIMER6_INT, NULL); --} -- --static struct irqaction hrt_irqaction = { -- .handler = amazon_timer6_interrupt, -- .flags = IRQF_DISABLED, -- .name = "hrt", --}; -+ mips_hpt_frequency = amazon_get_cpu_hz() / amazon_get_counter_resolution(); -+ r4k_offset = mips_hpt_frequency / HZ; -+ printk("mips_hpt_frequency:%d\n", mips_hpt_frequency); -+ printk("r4k_offset: %08x(%d)\n", r4k_offset, r4k_offset); - --/* -- * THe CPU counter for System timer, set to HZ -- * GPTU Timer 6 for high resolution timer, set to hr_time_resolution -- * Also misuse this routine to print out the CPU type and clock. -- */ --void __init plat_timer_setup(struct irqaction *irq) --{ -- /* cpu counter for timer interrupts */ -- setup_irq(MIPS_CPU_TIMER_IRQ, irq); -+ r4k_cur = (read_c0_count() + r4k_offset); -+ write_c0_compare(r4k_cur); - - /* enable the timer in the PMU */ - amazon_writel(amazon_readl(AMAZON_PMU_PWDCR)| AMAZON_PMU_PWDCR_GPT|AMAZON_PMU_PWDCR_FPI, AMAZON_PMU_PWDCR); -@@ -147,7 +150,6 @@ void __init plat_mem_setup(void) - } - - amazon_reboot_setup(); -- board_time_init = amazon_time_init; - - //stop reset TPE and DFE - amazon_writel(0, AMAZON_RST_REQ); ---- a/arch/mips/amazon/interrupt.c -+++ b/arch/mips/amazon/interrupt.c -@@ -184,3 +184,10 @@ void __init arch_init_irq(void) - set_irq_chip(i, &amazon_irq_type); - } - } -+ -+void __cpuinit arch_fixup_c0_irqs(void) -+{ -+ /* FIXME: check for CPUID and only do fix for specific chips/versions */ -+ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ; -+ cp0_perfcount_irq = CP0_LEGACY_PERFCNT_IRQ; -+} |