diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-27 21:44:34 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-27 21:44:34 +0200 |
commit | 78c10e556ed904d5bfbd71e9cadd8ce8f25d6982 (patch) | |
tree | f73c802d60e81ff9e9fd2465eab096834d0227cd /arch/mips/jz4740/time.c | |
parent | Merge branch 'for-4.2' of git://linux-nfs.org/~bfields/linux (diff) | |
parent | MIPS: spinlock: Adjust arch_spin_lock back-off time (diff) | |
download | linux-78c10e556ed904d5bfbd71e9cadd8ce8f25d6982.tar.xz linux-78c10e556ed904d5bfbd71e9cadd8ce8f25d6982.zip |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
- Improvements to the tlb_dump code
- KVM fixes
- Add support for appended DTB
- Minor improvements to the R12000 support
- Minor improvements to the R12000 support
- Various platform improvments for BCM47xx
- The usual pile of minor cleanups
- A number of BPF fixes and improvments
- Some improvments to the support for R3000 and DECstations
- Some improvments to the ATH79 platform support
- A major patchset for the JZ4740 SOC adding support for the CI20 platform
- Add support for the Pistachio SOC
- Minor BMIPS/BCM63xx platform support improvments.
- Avoid "SYNC 0" as memory barrier when unlocking spinlocks
- Add support for the XWR-1750 board.
- Paul's __cpuinit/__cpuinitdata cleanups.
- New Malta CPU board support large memory so enable ZONE_DMA32.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
MIPS: spinlock: Adjust arch_spin_lock back-off time
MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
MIPS: BCM47xx: Simplify handling SPROM revisions
MIPS: Cobalt Don't use module_init in non-modular MTD registration.
MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
MIPS: use for_each_sg()
MIPS: BCM47xx: Don't select BCMA_HOST_PCI
MIPS: BCM47xx: Add helper variable for storing NVRAM length
MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
MIPS: Replace smp_mb with release barrier function in unlocks.
MIPS: i8259: DT support
MIPS: Malta: Basic DT plumbing
MIPS: include errno.h for ENODEV in mips-cm.h
MIPS: Define GCR_GIC_STATUS register fields
MIPS: BPF: Introduce BPF ASM helpers
MIPS: BPF: Use BPF register names to describe the ABI
MIPS: BPF: Move register definition to the BPF header
MIPS: net: BPF: Replace RSIZE with SZREG
MIPS: BPF: Free up some callee-saved registers
MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
...
Diffstat (limited to 'arch/mips/jz4740/time.c')
-rw-r--r-- | arch/mips/jz4740/time.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c index 72b0cecbc17c..7ab47fee1be8 100644 --- a/arch/mips/jz4740/time.c +++ b/arch/mips/jz4740/time.c @@ -13,6 +13,8 @@ * */ +#include <linux/clk.h> +#include <linux/clk-provider.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/time.h> @@ -20,6 +22,7 @@ #include <linux/clockchips.h> #include <linux/sched_clock.h> +#include <asm/mach-jz4740/clock.h> #include <asm/mach-jz4740/irq.h> #include <asm/mach-jz4740/timer.h> #include <asm/time.h> @@ -99,7 +102,12 @@ static struct clock_event_device jz4740_clockevent = { .set_next_event = jz4740_clockevent_set_next, .set_mode = jz4740_clockevent_set_mode, .rating = 200, +#ifdef CONFIG_MACH_JZ4740 .irq = JZ4740_IRQ_TCU0, +#endif +#ifdef CONFIG_MACH_JZ4780 + .irq = JZ4780_IRQ_TCU2, +#endif }; static struct irqaction timer_irqaction = { @@ -114,10 +122,17 @@ void __init plat_time_init(void) int ret; uint32_t clk_rate; uint16_t ctrl; + struct clk *ext_clk; + of_clk_init(NULL); jz4740_timer_init(); - clk_rate = jz4740_clock_bdata.ext_rate >> 4; + ext_clk = clk_get(NULL, "ext"); + if (IS_ERR(ext_clk)) + panic("unable to get ext clock"); + clk_rate = clk_get_rate(ext_clk) >> 4; + clk_put(ext_clk); + jz4740_jiffies_per_tick = DIV_ROUND_CLOSEST(clk_rate, HZ); clockevent_set_clock(&jz4740_clockevent, clk_rate); @@ -134,7 +149,7 @@ void __init plat_time_init(void) sched_clock_register(jz4740_read_sched_clock, 16, clk_rate); - setup_irq(JZ4740_IRQ_TCU0, &timer_irqaction); + setup_irq(jz4740_clockevent.irq, &timer_irqaction); ctrl = JZ_TIMER_CTRL_PRESCALE_16 | JZ_TIMER_CTRL_SRC_EXT; |