bool
default y
select HAVE_AOUT
+ select HAVE_DMA_API_DEBUG
select HAVE_IDE
select HAVE_MEMBLOCK
select RTC_LIB
select PERF_USE_VMALLOC
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
+ select HAVE_C_RECORDMCOUNT
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
config HAVE_PWM
bool
+config MIGHT_HAVE_PCI
+ bool
+
config SYS_SUPPORTS_APM_EMULATION
bool
+config HAVE_SCHED_CLOCK
+ bool
+
config GENERIC_GPIO
bool
bool "ARM Ltd. Integrator family"
select ARM_AMBA
select ARCH_HAS_CPUFREQ
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select ICST
select GENERIC_CLOCKEVENTS
select PLAT_VERSATILE
config ARCH_REALVIEW
bool "ARM Ltd. RealView family"
select ARM_AMBA
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
+ select HAVE_SCHED_CLOCK
select ICST
select GENERIC_CLOCKEVENTS
select ARCH_WANT_OPTIONAL_GPIOLIB
bool "ARM Ltd. Versatile family"
select ARM_AMBA
select ARM_VIC
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
+ select HAVE_SCHED_CLOCK
select ICST
select GENERIC_CLOCKEVENTS
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_AMBA
select ARM_TIMER_SP804
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
select HAVE_CLK
+ select HAVE_SCHED_CLOCK
select ICST
select PLAT_VERSATILE
help
depends on MMU
select CPU_V6
select ARM_AMBA
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
select ARCH_WANT_OPTIONAL_GPIOLIB
help
select CPU_V6
select GENERIC_CLOCKEVENTS
select ARM_GIC
+ select MIGHT_HAVE_PCI
select PCI_DOMAINS if PCI
help
Support for Cavium Networks CNS3XXX platform.
select CPU_ARM920T
select ARM_AMBA
select ARM_VIC
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_HOLES_MEMORYMODEL
select ARCH_USES_GETTIMEOFFSET
bool "Freescale MXC/iMX-based"
select GENERIC_CLOCKEVENTS
select ARCH_REQUIRE_GPIOLIB
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
help
Support for Freescale MXC/iMX-based family of processors
+ config ARCH_MXS
+ bool "Freescale MXS-based"
+ select GENERIC_CLOCKEVENTS
+ select ARCH_REQUIRE_GPIOLIB
+ select COMMON_CLKDEV
+ help
+ Support for Freescale MXS-based family of processors
+
config ARCH_STMP3XXX
bool "Freescale STMP3xxx"
select CPU_ARM926T
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select ARCH_REQUIRE_GPIOLIB
select GENERIC_CLOCKEVENTS
select USB_ARCH_HAS_EHCI
select CPU_XSCALE
select GENERIC_GPIO
select GENERIC_CLOCKEVENTS
+ select HAVE_SCHED_CLOCK
+ select MIGHT_HAVE_PCI
select DMABOUNCE if PCI
help
Support for Intel's IXP4XX (XScale) family of processors.
select HAVE_IDE
select ARM_AMBA
select USB_ARCH_HAS_OHCI
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
help
bool "Marvell PXA168/910/MMP2"
depends on MMU
select ARCH_REQUIRE_GPIOLIB
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
+ select HAVE_SCHED_CLOCK
select TICK_ONESHOT
select PLAT_PXA
select SPARSE_IRQ
bool "Nuvoton W90X900 CPU"
select CPU_ARM926T
select ARCH_REQUIRE_GPIOLIB
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
help
Support for Nuvoton (Winbond logic dept.) ARM9 processor,
config ARCH_NUC93X
bool "Nuvoton NUC93X CPU"
select CPU_ARM926T
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
help
Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
low-power and high performance MPEG-4/JPEG multimedia controller chip.
config ARCH_TEGRA
bool "NVIDIA Tegra"
+ select CLKDEV_LOOKUP
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select GENERIC_GPIO
select HAVE_CLK
- select COMMON_CLKDEV
+ select HAVE_SCHED_CLOCK
select ARCH_HAS_BARRIERS if CACHE_L2X0
select ARCH_HAS_CPUFREQ
help
config ARCH_PNX4008
bool "Philips Nexperia PNX4008 Mobile"
select CPU_ARM926T
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select ARCH_USES_GETTIMEOFFSET
help
This enables support for Philips PNX4008 mobile platform.
depends on MMU
select ARCH_MTD_XIP
select ARCH_HAS_CPUFREQ
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select ARCH_REQUIRE_GPIOLIB
select GENERIC_CLOCKEVENTS
+ select HAVE_SCHED_CLOCK
select TICK_ONESHOT
select PLAT_PXA
select SPARSE_IRQ
select CPU_FREQ
select GENERIC_CLOCKEVENTS
select HAVE_CLK
+ select HAVE_SCHED_CLOCK
select TICK_ONESHOT
select ARCH_REQUIRE_GPIOLIB
help
bool "Telechips TCC ARM926-based systems"
select CPU_ARM926T
select HAVE_CLK
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
help
Support for Telechips TCC ARM926-based systems.
bool "ST-Ericsson U300 Series"
depends on MMU
select CPU_ARM926T
+ select HAVE_SCHED_CLOCK
select HAVE_TCM
select ARM_AMBA
select ARM_VIC
select GENERIC_CLOCKEVENTS
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_GPIO
help
Support for ST-Ericsson U300 series mobile platforms.
select CPU_V7
select ARM_AMBA
select GENERIC_CLOCKEVENTS
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select ARCH_REQUIRE_GPIOLIB
+ select ARCH_HAS_CPUFREQ
help
Support for ST-Ericsson's Ux500 architecture
select ARM_AMBA
select ARM_VIC
select CPU_ARM926T
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
select ARCH_REQUIRE_GPIOLIB
help
select ARCH_REQUIRE_GPIOLIB
select ZONE_DMA
select HAVE_IDE
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_ALLOCATOR
select ARCH_HAS_HOLES_MEMORYMODEL
help
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_CPUFREQ
select GENERIC_CLOCKEVENTS
+ select HAVE_SCHED_CLOCK
select ARCH_HAS_HOLES_MEMORYMODEL
help
Support for TI's OMAP platform (OMAP1/2/3/4).
bool "ST SPEAr"
select ARM_AMBA
select ARCH_REQUIRE_GPIOLIB
- select COMMON_CLKDEV
+ select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
select HAVE_CLK
help
source "arch/arm/plat-mxc/Kconfig"
+ source "arch/arm/mach-mxs/Kconfig"
+
source "arch/arm/mach-netx/Kconfig"
source "arch/arm/mach-nomadik/Kconfig"
config PLAT_IOP
bool
select GENERIC_CLOCKEVENTS
+ select HAVE_SCHED_CLOCK
config PLAT_ORION
bool
+ select HAVE_SCHED_CLOCK
config PLAT_PXA
bool
config IWMMXT
bool "Enable iWMMXt support"
- depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
- default y if PXA27x || PXA3xx || ARCH_MMP
+ depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
+ default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
help
Enable support for iWMMXt context switching at run time if
running on a CPU that supports it.
default y
bool
+config MULTI_IRQ_HANDLER
+ bool
+ help
+ Allow each machine to specify it's own IRQ handler at run time.
+
if !MMU
source "arch/arm/Kconfig-nommu"
endif
bool
config PCI
- bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
+ bool "PCI support" if MIGHT_HAVE_PCI
help
Find out whether you have a PCI motherboard. PCI is the name of a
bus system, i.e. the way the CPU talks to the other stuff inside
bool
depends on PCI
+config PCI_NANOENGINE
+ bool "BSE nanoEngine PCI support"
+ depends on SA1100_NANOENGINE
+ help
+ Enable PCI on the BSE nanoEngine board.
+
config PCI_SYSCALL
def_bool PCI
config SMP_ON_UP
bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
depends on EXPERIMENTAL
- depends on SMP && !XIP && !THUMB2_KERNEL
+ depends on SMP && !XIP
default y
help
SMP kernels contain instructions which fail on non-SMP processors.
config HAVE_ARM_TWD
bool
depends on SMP
+ select TICK_ONESHOT
help
This options enables support for the ARM timer and watchdog unit
default 100
config THUMB2_KERNEL
- bool "Compile the kernel in Thumb-2 mode"
+ bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
select AEABI
select ARM_ASM_UNIFIED
config CC_STACKPROTECTOR
bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
help
This option turns on the -fstack-protector GCC feature. This
feature puts, at the beginning of functions, a canary value on
Should the atags used to boot the kernel be exported in an "atags"
file in procfs. Useful with kexec.
+config CRASH_DUMP
+ bool "Build kdump crash kernel (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ Generate crash dump after being started by kexec. This should
+ be normally only set in special crash dump kernels which are
+ loaded in the main kernel with kexec-tools into a specially
+ reserved region and then later executed after a crash by
+ kdump/kexec. The crash dump kernel must be compiled to a
+ memory address not used by the main kernel
+
+ For more details see Documentation/kdump/kdump.txt
+
config AUTO_ZRELADDR
bool "Auto calculation of the decompressed kernel image address"
depends on !ZBOOT_ROM && !ARCH_U300
Internal configuration node for common cpufreq on Samsung SoC
config CPU_FREQ_S3C24XX
- bool "CPUfreq driver for Samsung S3C24XX series CPUs"
+ bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
select CPU_FREQ_S3C
help
If in doubt, say N.
config CPU_FREQ_S3C24XX_PLL
- bool "Support CPUfreq changing of PLL frequency"
+ bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
help
Compile in support for changing the PLL frequency from the
obj-$(CONFIG_ARTHUR) += arthur.o
obj-$(CONFIG_ISA_DMA) += dma-isa.o
obj-$(CONFIG_PCI) += bios32.o isa.o
-obj-$(CONFIG_SMP) += smp.o
+obj-$(CONFIG_HAVE_SCHED_CLOCK) += sched_clock.o
+obj-$(CONFIG_SMP) += smp.o smp_tlb.o
obj-$(CONFIG_HAVE_ARM_SCU) += smp_scu.o
obj-$(CONFIG_HAVE_ARM_TWD) += smp_twd.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
obj-$(CONFIG_ARM_UNWIND) += unwind.o
obj-$(CONFIG_HAVE_TCM) += tcm.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
+obj-$(CONFIG_SWP_EMULATE) += swp_emulate.o
+CFLAGS_swp_emulate.o := -Wa,-march=armv7-a
obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
obj-$(CONFIG_CRUNCH) += crunch.o crunch-bits.o
obj-$(CONFIG_CPU_XSCALE) += xscale-cp0.o
obj-$(CONFIG_CPU_XSC3) += xscale-cp0.o
obj-$(CONFIG_CPU_MOHAWK) += xscale-cp0.o
+ obj-$(CONFIG_CPU_PJ4) += pj4-cp0.o
obj-$(CONFIG_IWMMXT) += iwmmxt.o
obj-$(CONFIG_CPU_HAS_PMU) += pmu.o
obj-$(CONFIG_HW_PERF_EVENTS) += perf_event.o
#include <asm/tls.h>
#include "entry-header.S"
+#include <asm/entry-macro-multi.S>
/*
* Interrupt handling. Preserves r7, r8, r9
*/
.macro irq_handler
- get_irqnr_preamble r5, lr
-1: get_irqnr_and_base r0, r6, r5, lr
- movne r1, sp
- @
- @ routine called with r0 = irq number, r1 = struct pt_regs *
- @
- adrne lr, BSYM(1b)
- bne asm_do_IRQ
-
-#ifdef CONFIG_SMP
- /*
- * XXX
- *
- * this macro assumes that irqstat (r6) and base (r5) are
- * preserved from get_irqnr_and_base above
- */
- ALT_SMP(test_for_ipi r0, r6, r5, lr)
- ALT_UP_B(9997f)
- movne r0, sp
- adrne lr, BSYM(1b)
- bne do_IPI
-
-#ifdef CONFIG_LOCAL_TIMERS
- test_for_ltirq r0, r6, r5, lr
- movne r0, sp
- adrne lr, BSYM(1b)
- bne do_local_timer
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+ ldr r5, =handle_arch_irq
+ mov r0, sp
+ ldr r5, [r5]
+ adr lr, BSYM(9997f)
+ teq r5, #0
+ movne pc, r5
#endif
+ arch_irq_handler_default
9997:
-#endif
-
.endm
#ifdef CONFIG_KPROBES
@
@ set desired IRQ state, then call main handler
@
+ debug_entry r1
msr cpsr_c, r9
mov r2, sp
bl do_DataAbort
#else
bl CPU_PABORT_HANDLER
#endif
+ debug_entry r1
msr cpsr_c, r9 @ Maybe enable interrupts
mov r2, sp @ regs
bl do_PrefetchAbort @ call abort handler
@
@ IRQs on, then call the main handler
@
+ debug_entry r1
enable_irq
mov r2, sp
adr lr, BSYM(ret_from_exception)
#else
bl CPU_PABORT_HANDLER
#endif
+ debug_entry r1
enable_irq @ Enable interrupts
mov r2, sp @ regs
bl do_PrefetchAbort @ call abort handler
THUMB( stmia ip!, {r4 - sl, fp} ) @ Store most regs on stack
THUMB( str sp, [ip], #4 )
THUMB( str lr, [ip], #4 )
-#ifdef CONFIG_MMU
+#ifdef CONFIG_CPU_USE_DOMAINS
ldr r6, [r2, #TI_CPU_DOMAIN]
#endif
set_tls r3, r4, r5
ldr r8, =__stack_chk_guard
ldr r7, [r7, #TSK_STACK_CANARY]
#endif
-#ifdef CONFIG_MMU
+#ifdef CONFIG_CPU_USE_DOMAINS
mcr p15, 0, r6, c3, c0, 0 @ Set domain register
#endif
mov r5, r0
*/
__kuser_memory_barrier: @ 0xffff0fa0
- smp_dmb
+ smp_dmb arm
usr_ret lr
.align 5
#else
- smp_dmb
+ smp_dmb arm
1: ldrex r3, [r2]
subs r3, r3, r0
strexeq r3, r1, [r2]
.space 4
cr_no_alignment:
.space 4
+
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+ .globl handle_arch_irq
+handle_arch_irq:
+ .space 4
+#endif
#ifndef __CNS3XXX_CORE_H
#define __CNS3XXX_CORE_H
-extern void __iomem *gic_cpu_base_addr;
extern struct sys_timer cns3xxx_timer;
void __init cns3xxx_map_io(void);
void __init cns3xxx_init_irq(void);
void cns3xxx_power_off(void);
- void cns3xxx_pwr_power_up(unsigned int block);
- void cns3xxx_pwr_power_down(unsigned int block);
#endif /* __CNS3XXX_CORE_H */
return (cycles_t)timer32_read(t);
}
+ /*
+ * Kernel assumes that sched_clock can be called early but may not have
+ * things ready yet.
+ */
+ static cycle_t read_dummy(struct clocksource *cs)
+ {
+ return 0;
+ }
+
+
static struct clocksource clocksource_davinci = {
.rating = 300,
- .read = read_cycles,
+ .read = read_dummy,
.mask = CLOCKSOURCE_MASK(32),
- .shift = 24,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
+ /*
+ * Overwrite weak default sched_clock with something more precise
+ */
+ unsigned long long notrace sched_clock(void)
+ {
+ const cycle_t cyc = clocksource_davinci.read(&clocksource_davinci);
+
+ return clocksource_cyc2ns(cyc, clocksource_davinci.mult,
+ clocksource_davinci.shift);
+ }
+
/*
* clockevent
*/
davinci_clock_tick_rate = clk_get_rate(timer_clk);
/* setup clocksource */
+ clocksource_davinci.read = read_cycles;
clocksource_davinci.name = id_to_name[clocksource_id];
- clocksource_davinci.mult =
- clocksource_khz2mult(davinci_clock_tick_rate/1000,
- clocksource_davinci.shift);
- if (clocksource_register(&clocksource_davinci))
+ if (clocksource_register_hz(&clocksource_davinci,
+ davinci_clock_tick_rate))
printk(err, clocksource_davinci.name);
/* setup clockevent */
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/module.h>
+#include <linux/clkdev.h>
#include <mach/clock.h>
#include <mach/hardware.h>
#include <mach/common.h>
-#include <asm/clkdev.h>
#include <asm/div64.h>
#define IO_ADDR_CCM(off) (MX21_IO_ADDRESS(MX21_CCM_BASE_ADDR + (off)))
_REGISTER_CLOCK(NULL, "brom", brom_clk)
_REGISTER_CLOCK(NULL, "emma", emma_clk[0])
_REGISTER_CLOCK(NULL, "slcdc", slcdc_clk[0])
- _REGISTER_CLOCK("imx-wdt.0", NULL, wdog_clk)
+ _REGISTER_CLOCK("imx2-wdt.0", NULL, wdog_clk)
_REGISTER_CLOCK(NULL, "gpio", gpio_clk)
_REGISTER_CLOCK("imx-i2c.0", NULL, i2c_clk)
_REGISTER_CLOCK("mxc-keypad", NULL, kpp_clk)
#include <linux/list.h>
#include <linux/clk.h>
#include <linux/io.h>
-
-#include <asm/clkdev.h>
+#include <linux/clkdev.h>
#include <mach/clock.h>
#include <mach/hardware.h>
_REGISTER_CLOCK("fec.0", NULL, fec_clk)
_REGISTER_CLOCK("imxdi_rtc.0", NULL, dryice_clk)
_REGISTER_CLOCK("imx-fb.0", NULL, lcdc_clk)
- _REGISTER_CLOCK("imx-wdt.0", NULL, wdt_clk)
+ _REGISTER_CLOCK("imx2-wdt.0", NULL, wdt_clk)
_REGISTER_CLOCK("imx-ssi.0", NULL, ssi1_clk)
_REGISTER_CLOCK("imx-ssi.1", NULL, ssi2_clk)
_REGISTER_CLOCK("sdhci-esdhc-imx.0", NULL, esdhc1_clk)
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/module.h>
+#include <linux/clkdev.h>
-#include <asm/clkdev.h>
#include <asm/div64.h>
#include <mach/clock.h>
if (clk->parent == parent)
return 0;
- if (mx27_revision() >= CHIP_REV_2_0) {
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0) {
if (parent == &mpll_main1_clk) {
cscr |= CCM_CSCR_ARM_SRC;
} else {
div--;
reg = __raw_readl(CCM_CSCR);
- if (mx27_revision() >= CHIP_REV_2_0) {
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0) {
reg &= ~(3 << 12);
reg |= div << 12;
reg &= ~(CCM_CSCR_FPM | CCM_CSCR_SPEN);
parent_rate = clk_get_rate(clk->parent);
- if (mx27_revision() >= CHIP_REV_2_0)
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
pdf += 4; /* MX27 TO2+ */
else
pdf = (pdf < 2) ? 124UL : pdf; /* MX21 & MX27 TO1 */
parent_rate = clk_get_rate(clk->parent);
- if (mx27_revision() >= CHIP_REV_2_0)
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
nfc_pdf = (__raw_readl(CCM_PCDR0) >> 6) & 0xf;
else
nfc_pdf = (__raw_readl(CCM_PCDR0) >> 12) & 0xf;
parent_rate = clk_get_rate(clk->parent);
- if (mx27_revision() >= CHIP_REV_2_0) {
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0) {
vpu_pdf = (__raw_readl(CCM_PCDR0) >> 10) & 0x3f;
vpu_pdf += 4;
} else {
* clk->id == 0: arm clock source path 1 which is from 2 * MPLL / 2
* clk->id == 1: arm clock source path 2 which is from 2 * MPLL / 3
*/
- if (mx27_revision() >= CHIP_REV_2_0 && clk->id == 1)
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0 && clk->id == 1)
return 2UL * parent_rate / 3UL;
return parent_rate;
/* On TO2 we have to write the value back. Otherwise we
* read 0 from this register the next time.
*/
- if (mx27_revision() >= CHIP_REV_2_0)
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
__raw_writel(reg, CCM_SPCTL0);
return mxc_decode_pll(reg, rate);
u32 div;
unsigned long rate;
- if (mx27_revision() >= CHIP_REV_2_0)
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
div = (__raw_readl(CCM_CSCR) >> 12) & 0x3;
else
div = (__raw_readl(CCM_CSCR) >> 13) & 0x7;
{
unsigned long rate, bclk_pdf;
- if (mx27_revision() >= CHIP_REV_2_0)
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
bclk_pdf = (__raw_readl(CCM_CSCR) >> 8) & 0x3;
else
bclk_pdf = (__raw_readl(CCM_CSCR) >> 9) & 0xf;
{
unsigned long rate, ipg_pdf;
- if (mx27_revision() >= CHIP_REV_2_0)
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
return clk_get_rate(clk->parent);
else
ipg_pdf = (__raw_readl(CCM_CSCR) >> 8) & 1;
_REGISTER_CLOCK(NULL, "sahara2", sahara2_clk)
_REGISTER_CLOCK(NULL, "ata", ata_clk)
_REGISTER_CLOCK(NULL, "mstick", mstick_clk)
- _REGISTER_CLOCK("imx-wdt.0", NULL, wdog_clk)
+ _REGISTER_CLOCK("imx2-wdt.0", NULL, wdog_clk)
_REGISTER_CLOCK(NULL, "gpio", gpio_clk)
_REGISTER_CLOCK("imx-i2c.0", NULL, i2c1_clk)
_REGISTER_CLOCK("imx-i2c.1", NULL, i2c2_clk)
{
unsigned long cscr = __raw_readl(CCM_CSCR);
- if (mx27_revision() >= CHIP_REV_2_0) {
+ if (mx27_revision() >= IMX_CHIP_REVISION_2_0) {
if (cscr & CCM_CSCR_ARM_SRC)
cpu_clk.parent = &mpll_main1_clk;
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
+#include <linux/clkdev.h>
-#include <asm/clkdev.h>
#include <asm/div64.h>
#include <mach/clock.h>
_REGISTER_CLOCK("imx31-cspi.2", NULL, cspi3_clk)
_REGISTER_CLOCK(NULL, "gpt", gpt_clk)
_REGISTER_CLOCK(NULL, "pwm", pwm_clk)
- _REGISTER_CLOCK("imx-wdt.0", NULL, wdog_clk)
+ _REGISTER_CLOCK("imx2-wdt.0", NULL, wdog_clk)
_REGISTER_CLOCK(NULL, "rtc", rtc_clk)
_REGISTER_CLOCK(NULL, "epit", epit1_clk)
_REGISTER_CLOCK(NULL, "epit", epit2_clk)
mx31_read_cpu_rev();
- if (mx31_revision() >= MX31_CHIP_REV_2_0) {
+ if (mx31_revision() >= IMX_CHIP_REVISION_2_0) {
reg = __raw_readl(MXC_CCM_PMCR1);
/* No PLL restart on DVFS switch; enable auto EMI handshake */
reg |= MXC_CCM_PMCR1_PLLRDIS | MXC_CCM_PMCR1_EMIRQ_EN;
#include <linux/list.h>
#include <linux/clk.h>
#include <linux/io.h>
-
-#include <asm/clkdev.h>
+#include <linux/clkdev.h>
#include <mach/clock.h>
#include <mach/hardware.h>
_REGISTER_CLOCK("mxc-ehci.2", "usb", usbotg_clk)
_REGISTER_CLOCK("fsl-usb2-udc", "usb", usbotg_clk)
_REGISTER_CLOCK("fsl-usb2-udc", "usb_ahb", usbahb_clk)
- _REGISTER_CLOCK("imx-wdt.0", NULL, wdog_clk)
+ _REGISTER_CLOCK("imx2-wdt.0", NULL, wdog_clk)
_REGISTER_CLOCK(NULL, "max", max_clk)
_REGISTER_CLOCK(NULL, "audmux", audmux_clk)
_REGISTER_CLOCK(NULL, "csi", csi_clk)
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/clkdev.h>
-#include <asm/clkdev.h>
#include <asm/div64.h>
#include <mach/hardware.h>
static struct clk pll1_sw_clk;
static struct clk pll2_sw_clk;
static struct clk pll3_sw_clk;
+ static struct clk mx53_pll4_sw_clk;
static struct clk lp_apm_clk;
static struct clk periph_apm_clk;
static struct clk ahb_clk;
static struct clk ipg_clk;
static struct clk usboh3_clk;
+ static struct clk emi_fast_clk;
+ static struct clk ipu_clk;
+ static struct clk mipi_hsc1_clk;
#define MAX_DPLL_WAIT_TRIES 1000 /* 1000 * udelay(1) = 1ms */
return -EINVAL;
}
- static inline void __iomem *_get_pll_base(struct clk *pll)
+ static inline void __iomem *_mx51_get_pll_base(struct clk *pll)
{
if (pll == &pll1_main_clk)
return MX51_DPLL1_BASE;
return NULL;
}
+ static inline void __iomem *_mx53_get_pll_base(struct clk *pll)
+ {
+ if (pll == &pll1_main_clk)
+ return MX53_DPLL1_BASE;
+ else if (pll == &pll2_sw_clk)
+ return MX53_DPLL2_BASE;
+ else if (pll == &pll3_sw_clk)
+ return MX53_DPLL3_BASE;
+ else if (pll == &mx53_pll4_sw_clk)
+ return MX53_DPLL4_BASE;
+ else
+ BUG();
+
+ return NULL;
+ }
+
+ static inline void __iomem *_get_pll_base(struct clk *pll)
+ {
+ if (cpu_is_mx51())
+ return _mx51_get_pll_base(pll);
+ else
+ return _mx53_get_pll_base(pll);
+ }
+
static unsigned long clk_pll_get_rate(struct clk *clk)
{
long mfi, mfn, mfd, pdf, ref_clk, mfn_abs;
/* Handshake with MAX when LPM is entered. */
reg = __raw_readl(MXC_CCM_CLPCR);
- reg &= ~MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+ if (cpu_is_mx51())
+ reg &= ~MX51_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+ else if (cpu_is_mx53())
+ reg &= ~MX53_CCM_CLPCR_BYPASS_MAX_LPM_HS;
__raw_writel(reg, MXC_CCM_CLPCR);
return 0;
/* No Handshake with MAX when LPM is entered as its disabled. */
reg = __raw_readl(MXC_CCM_CLPCR);
- reg |= MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+ if (cpu_is_mx51())
+ reg |= MX51_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+ else if (cpu_is_mx53())
+ reg &= ~MX53_CCM_CLPCR_BYPASS_MAX_LPM_HS;
__raw_writel(reg, MXC_CCM_CLPCR);
}
return clk_get_rate(clk->parent) / div;
}
+ static unsigned long _clk_ddr_hf_get_rate(struct clk *clk)
+ {
+ unsigned long rate;
+ u32 reg, div;
+
+ reg = __raw_readl(MXC_CCM_CBCDR);
+ div = ((reg & MXC_CCM_CBCDR_DDR_PODF_MASK) >>
+ MXC_CCM_CBCDR_DDR_PODF_OFFSET) + 1;
+ rate = clk_get_rate(clk->parent) / div;
+
+ return rate;
+ }
+
/* External high frequency clock */
static struct clk ckih_clk = {
.get_rate = get_high_reference_clock_rate,
.disable = _clk_pll_disable,
};
+ /* PLL4 SW supplies to LVDS Display Bridge(LDB) */
+ static struct clk mx53_pll4_sw_clk = {
+ .parent = &osc_clk,
+ .set_rate = _clk_pll_set_rate,
+ .enable = _clk_pll_enable,
+ .disable = _clk_pll_disable,
+ };
+
/* Low-power Audio Playback Mode clock */
static struct clk lp_apm_clk = {
.parent = &osc_clk,
.round_rate = _clk_ahb_round_rate,
};
+ static struct clk iim_clk = {
+ .parent = &ipg_clk,
+ .enable_reg = MXC_CCM_CCGR0,
+ .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET,
+ };
+
/* Main IP interface clock for access to registers */
static struct clk ipg_clk = {
.parent = &ahb_clk,
.id = 0,
};
+ static struct clk dummy_clk = {
+ .id = 0,
+ };
+
static struct clk emi_slow_clk = {
.parent = &pll2_sw_clk,
.enable_reg = MXC_CCM_CCGR5,
.get_rate = clk_emi_slow_get_rate,
};
+ static int clk_ipu_enable(struct clk *clk)
+ {
+ u32 reg;
+
+ _clk_ccgr_enable(clk);
+
+ /* Enable handshake with IPU when certain clock rates are changed */
+ reg = __raw_readl(MXC_CCM_CCDR);
+ reg &= ~MXC_CCM_CCDR_IPU_HS_MASK;
+ __raw_writel(reg, MXC_CCM_CCDR);
+
+ /* Enable handshake with IPU when LPM is entered */
+ reg = __raw_readl(MXC_CCM_CLPCR);
+ reg &= ~MXC_CCM_CLPCR_BYPASS_IPU_LPM_HS;
+ __raw_writel(reg, MXC_CCM_CLPCR);
+
+ return 0;
+ }
+
+ static void clk_ipu_disable(struct clk *clk)
+ {
+ u32 reg;
+
+ _clk_ccgr_disable(clk);
+
+ /* Disable handshake with IPU whe dividers are changed */
+ reg = __raw_readl(MXC_CCM_CCDR);
+ reg |= MXC_CCM_CCDR_IPU_HS_MASK;
+ __raw_writel(reg, MXC_CCM_CCDR);
+
+ /* Disable handshake with IPU when LPM is entered */
+ reg = __raw_readl(MXC_CCM_CLPCR);
+ reg |= MXC_CCM_CLPCR_BYPASS_IPU_LPM_HS;
+ __raw_writel(reg, MXC_CCM_CLPCR);
+ }
+
+ static struct clk ahbmux1_clk = {
+ .parent = &ahb_clk,
+ .secondary = &ahb_max_clk,
+ .enable_reg = MXC_CCM_CCGR0,
+ .enable_shift = MXC_CCM_CCGRx_CG8_OFFSET,
+ .enable = _clk_ccgr_enable,
+ .disable = _clk_ccgr_disable_inwait,
+ };
+
+ static struct clk ipu_sec_clk = {
+ .parent = &emi_fast_clk,
+ .secondary = &ahbmux1_clk,
+ };
+
+ static struct clk ddr_hf_clk = {
+ .parent = &pll1_sw_clk,
+ .get_rate = _clk_ddr_hf_get_rate,
+ };
+
+ static struct clk ddr_clk = {
+ .parent = &ddr_hf_clk,
+ };
+
+ /* clock definitions for MIPI HSC unit which has been removed
+ * from documentation, but not from hardware
+ */
+ static int _clk_hsc_enable(struct clk *clk)
+ {
+ u32 reg;
+
+ _clk_ccgr_enable(clk);
+ /* Handshake with IPU when certain clock rates are changed. */
+ reg = __raw_readl(MXC_CCM_CCDR);
+ reg &= ~MXC_CCM_CCDR_HSC_HS_MASK;
+ __raw_writel(reg, MXC_CCM_CCDR);
+
+ reg = __raw_readl(MXC_CCM_CLPCR);
+ reg &= ~MXC_CCM_CLPCR_BYPASS_HSC_LPM_HS;
+ __raw_writel(reg, MXC_CCM_CLPCR);
+
+ return 0;
+ }
+
+ static void _clk_hsc_disable(struct clk *clk)
+ {
+ u32 reg;
+
+ _clk_ccgr_disable(clk);
+ /* No handshake with HSC as its not enabled. */
+ reg = __raw_readl(MXC_CCM_CCDR);
+ reg |= MXC_CCM_CCDR_HSC_HS_MASK;
+ __raw_writel(reg, MXC_CCM_CCDR);
+
+ reg = __raw_readl(MXC_CCM_CLPCR);
+ reg |= MXC_CCM_CLPCR_BYPASS_HSC_LPM_HS;
+ __raw_writel(reg, MXC_CCM_CLPCR);
+ }
+
+ static struct clk mipi_hsp_clk = {
+ .parent = &ipu_clk,
+ .enable_reg = MXC_CCM_CCGR4,
+ .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET,
+ .enable = _clk_hsc_enable,
+ .disable = _clk_hsc_disable,
+ .secondary = &mipi_hsc1_clk,
+ };
+
#define DEFINE_CLOCK_CCGR(name, i, er, es, pfx, p, s) \
static struct clk name = { \
.id = i, \
.parent = &pll2_sw_clk,
.get_rate = clk_usboh3_get_rate,
.set_parent = clk_usboh3_set_parent,
+ .enable = _clk_ccgr_enable,
+ .disable = _clk_ccgr_disable,
+ .enable_reg = MXC_CCM_CCGR2,
+ .enable_shift = MXC_CCM_CCGRx_CG14_OFFSET,
+ };
+
+ static struct clk usb_ahb_clk = {
+ .parent = &ipg_clk,
+ .enable = _clk_ccgr_enable,
+ .disable = _clk_ccgr_disable,
+ .enable_reg = MXC_CCM_CCGR2,
+ .enable_shift = MXC_CCM_CCGRx_CG13_OFFSET,
+ };
+
+ static int clk_usb_phy1_set_parent(struct clk *clk, struct clk *parent)
+ {
+ u32 reg;
+
+ reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_USB_PHY_CLK_SEL;
+
+ if (parent == &pll3_sw_clk)
+ reg |= 1 << MXC_CCM_CSCMR1_USB_PHY_CLK_SEL_OFFSET;
+
+ __raw_writel(reg, MXC_CCM_CSCMR1);
+
+ return 0;
+ }
+
+ static struct clk usb_phy1_clk = {
+ .parent = &pll3_sw_clk,
+ .set_parent = clk_usb_phy1_set_parent,
+ .enable = _clk_ccgr_enable,
+ .enable_reg = MXC_CCM_CCGR2,
+ .enable_shift = MXC_CCM_CCGRx_CG0_OFFSET,
+ .disable = _clk_ccgr_disable,
};
/* eCSPI */
NULL, NULL, &ipg_clk, NULL);
DEFINE_CLOCK(ssi2_clk, 1, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG11_OFFSET,
NULL, NULL, &pll3_sw_clk, &ssi2_ipg_clk);
+ DEFINE_CLOCK(ssi3_ipg_clk, 2, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG12_OFFSET,
+ NULL, NULL, &ipg_clk, NULL);
+ DEFINE_CLOCK(ssi3_clk, 2, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG13_OFFSET,
+ NULL, NULL, &pll3_sw_clk, &ssi3_ipg_clk);
/* eCSPI */
DEFINE_CLOCK_FULL(ecspi1_ipg_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG9_OFFSET,
DEFINE_CLOCK_MAX(esdhc2_clk, 1, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG3_OFFSET,
clk_esdhc2, &pll2_sw_clk, &esdhc2_ipg_clk);
+ DEFINE_CLOCK(mipi_esc_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG5_OFFSET, NULL, NULL, NULL, &pll2_sw_clk);
+ DEFINE_CLOCK(mipi_hsc2_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG4_OFFSET, NULL, NULL, &mipi_esc_clk, &pll2_sw_clk);
+ DEFINE_CLOCK(mipi_hsc1_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG3_OFFSET, NULL, NULL, &mipi_hsc2_clk, &pll2_sw_clk);
+
+ /* IPU */
+ DEFINE_CLOCK_FULL(ipu_clk, 0, MXC_CCM_CCGR5, MXC_CCM_CCGRx_CG5_OFFSET,
+ NULL, NULL, clk_ipu_enable, clk_ipu_disable, &ahb_clk, &ipu_sec_clk);
+
+ DEFINE_CLOCK_FULL(emi_fast_clk, 0, MXC_CCM_CCGR5, MXC_CCM_CCGRx_CG7_OFFSET,
+ NULL, NULL, _clk_ccgr_enable, _clk_ccgr_disable_inwait,
+ &ddr_clk, NULL);
+
+ DEFINE_CLOCK(ipu_di0_clk, 0, MXC_CCM_CCGR6, MXC_CCM_CCGRx_CG5_OFFSET,
+ NULL, NULL, &pll3_sw_clk, NULL);
+ DEFINE_CLOCK(ipu_di1_clk, 0, MXC_CCM_CCGR6, MXC_CCM_CCGRx_CG6_OFFSET,
+ NULL, NULL, &pll3_sw_clk, NULL);
+
#define _REGISTER_CLOCK(d, n, c) \
{ \
.dev_id = d, \
.clk = &c, \
},
- static struct clk_lookup lookups[] = {
+ static struct clk_lookup mx51_lookups[] = {
_REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk)
_REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk)
_REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
_REGISTER_CLOCK("imx-i2c.1", NULL, i2c2_clk)
_REGISTER_CLOCK("imx-i2c.2", NULL, hsi2c_clk)
_REGISTER_CLOCK("mxc-ehci.0", "usb", usboh3_clk)
- _REGISTER_CLOCK("mxc-ehci.0", "usb_ahb", ahb_clk)
+ _REGISTER_CLOCK("mxc-ehci.0", "usb_ahb", usb_ahb_clk)
+ _REGISTER_CLOCK("mxc-ehci.0", "usb_phy1", usb_phy1_clk)
_REGISTER_CLOCK("mxc-ehci.1", "usb", usboh3_clk)
- _REGISTER_CLOCK("mxc-ehci.1", "usb_ahb", ahb_clk)
+ _REGISTER_CLOCK("mxc-ehci.1", "usb_ahb", usb_ahb_clk)
+ _REGISTER_CLOCK("mxc-ehci.2", "usb", usboh3_clk)
+ _REGISTER_CLOCK("mxc-ehci.2", "usb_ahb", usb_ahb_clk)
_REGISTER_CLOCK("fsl-usb2-udc", "usb", usboh3_clk)
_REGISTER_CLOCK("fsl-usb2-udc", "usb_ahb", ahb_clk)
_REGISTER_CLOCK("imx-keypad.0", NULL, kpp_clk)
_REGISTER_CLOCK("mxc_nand", NULL, nfc_clk)
_REGISTER_CLOCK("imx-ssi.0", NULL, ssi1_clk)
_REGISTER_CLOCK("imx-ssi.1", NULL, ssi2_clk)
+ _REGISTER_CLOCK("imx-ssi.2", NULL, ssi3_clk)
_REGISTER_CLOCK("imx-sdma", NULL, sdma_clk)
_REGISTER_CLOCK(NULL, "ckih", ckih_clk)
_REGISTER_CLOCK(NULL, "ckih2", ckih2_clk)
_REGISTER_CLOCK("sdhci-esdhc-imx.0", NULL, esdhc1_clk)
_REGISTER_CLOCK("sdhci-esdhc-imx.1", NULL, esdhc2_clk)
_REGISTER_CLOCK(NULL, "cpu_clk", cpu_clk)
+ _REGISTER_CLOCK(NULL, "iim_clk", iim_clk)
+ _REGISTER_CLOCK("imx2-wdt.0", NULL, dummy_clk)
+ _REGISTER_CLOCK("imx2-wdt.1", NULL, dummy_clk)
+ _REGISTER_CLOCK(NULL, "mipi_hsp", mipi_hsp_clk)
+ _REGISTER_CLOCK("imx-ipuv3", NULL, ipu_clk)
+ _REGISTER_CLOCK("imx-ipuv3", "di0", ipu_di0_clk)
+ _REGISTER_CLOCK("imx-ipuv3", "di1", ipu_di1_clk)
+ };
+
+ static struct clk_lookup mx53_lookups[] = {
+ _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk)
+ _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk)
+ _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
+ _REGISTER_CLOCK(NULL, "gpt", gpt_clk)
+ _REGISTER_CLOCK("fec.0", NULL, fec_clk)
+ _REGISTER_CLOCK(NULL, "iim_clk", iim_clk)
};
static void clk_tree_init(void)
ckih2_reference = ckih2;
oscillator_reference = osc;
- for (i = 0; i < ARRAY_SIZE(lookups); i++)
- clkdev_add(&lookups[i]);
+ for (i = 0; i < ARRAY_SIZE(mx51_lookups); i++)
+ clkdev_add(&mx51_lookups[i]);
clk_tree_init();
+ clk_set_parent(&uart_root_clk, &pll3_sw_clk);
clk_enable(&cpu_clk);
clk_enable(&main_bus_clk);
+ clk_enable(&iim_clk);
+ mx51_revision();
+ clk_disable(&iim_clk);
+
+ /* move usb_phy_clk to 24MHz */
+ clk_set_parent(&usb_phy1_clk, &osc_clk);
+
/* set the usboh3_clk parent to pll2_sw_clk */
clk_set_parent(&usboh3_clk, &pll2_sw_clk);
MX51_MXC_INT_GPT);
return 0;
}
+
+ int __init mx53_clocks_init(unsigned long ckil, unsigned long osc,
+ unsigned long ckih1, unsigned long ckih2)
+ {
+ int i;
+
+ external_low_reference = ckil;
+ external_high_reference = ckih1;
+ ckih2_reference = ckih2;
+ oscillator_reference = osc;
+
+ for (i = 0; i < ARRAY_SIZE(mx53_lookups); i++)
+ clkdev_add(&mx53_lookups[i]);
+
+ clk_tree_init();
+
+ clk_enable(&cpu_clk);
+ clk_enable(&main_bus_clk);
+
+ clk_enable(&iim_clk);
+ mx53_revision();
+ clk_disable(&iim_clk);
+
+ /* System timer */
+ mxc_timer_init(&gpt_clk, MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR),
+ MX53_INT_GPT);
+ return 0;
+ }
select PXA3xx
select CPU_PXA930
+ config MACH_SAARB
+ bool "PXA955 Handheld Platform (aka SAARB)"
+ select CPU_PXA955
+
comment "Third Party Dev Platforms (sorted by vendor name)"
config ARCH_PXA_IDP
select PXA27x
select IWMMXT
select PXA25x
+ select MIGHT_HAVE_PCI
config MACH_EM_X270
bool "CompuLab EM-x270 platform"
bool "Toradex Colibri PXA270"
select PXA27x
- config MACH_COLIBRI_PXA270_EVALBOARD
- bool "Toradex Colibri Evaluation Carrier Board support (PXA270)"
- depends on MACH_COLIBRI
-
config MACH_COLIBRI_PXA270_INCOME
bool "Income s.r.o. PXA270 SBC"
depends on MACH_COLIBRI
select PXA3xx
select CPU_PXA320
+ config MACH_COLIBRI_EVALBOARD
+ bool "Toradex Colibri Evaluation Carrier Board support"
+ depends on MACH_COLIBRI || MACH_COLIBRI300 || MACH_COLIBRI320
+
config MACH_VPAC270
bool "Voipac PXA270"
select PXA27x
config ARCH_PXA_ESERIES
bool "PXA based Toshiba e-series PDAs"
select PXA25x
+ select FB_W100
config MACH_E330
bool "Toshiba e330"
help
PXA935 (codename Tavor-P65)
- config CPU_PXA950
+ config PXA95x
bool
- select CPU_PXA930
+ select CPU_PJ4
+ help
+ Select code specific to PXA95x variants
+
+ config CPU_PXA955
+ bool
+ select PXA95x
help
- PXA950 (codename Tavor-PV2)
+ PXA950 (codename MG1)
config PXA_SHARP_C7xx
bool
*/
#include <linux/module.h>
#include <linux/kernel.h>
- #include <linux/list.h>
- #include <linux/errno.h>
- #include <linux/err.h>
- #include <linux/string.h>
#include <linux/clk.h>
#include <linux/spinlock.h>
- #include <linux/platform_device.h>
#include <linux/delay.h>
-
-#include <asm/clkdev.h>
+#include <linux/clkdev.h>
- #include <mach/pxa2xx-regs.h>
- #include <mach/hardware.h>
-
- #include "devices.h"
- #include "generic.h"
#include "clock.h"
static DEFINE_SPINLOCK(clocks_lock);
}
EXPORT_SYMBOL(clk_get_rate);
-
- void clk_cken_enable(struct clk *clk)
+ void clk_dummy_enable(struct clk *clk)
{
- CKEN |= 1 << clk->cken;
}
- void clk_cken_disable(struct clk *clk)
+ void clk_dummy_disable(struct clk *clk)
{
- CKEN &= ~(1 << clk->cken);
}
- const struct clkops clk_cken_ops = {
- .enable = clk_cken_enable,
- .disable = clk_cken_disable,
+ const struct clkops clk_dummy_ops = {
+ .enable = clk_dummy_enable,
+ .disable = clk_dummy_disable,
+ };
+
+ struct clk clk_dummy = {
+ .ops = &clk_dummy_ops,
};
-#include <asm/clkdev.h>
+#include <linux/clkdev.h>
+ #include <linux/sysdev.h>
struct clkops {
void (*enable)(struct clk *);
unsigned int enabled;
};
+ void clk_dummy_enable(struct clk *);
+ void clk_dummy_disable(struct clk *);
+
+ extern const struct clkops clk_dummy_ops;
+ extern struct clk clk_dummy;
+
#define INIT_CLKREG(_clk,_devname,_conname) \
{ \
.clk = _clk, \
.con_id = _conname, \
}
- #define DEFINE_CKEN(_name, _cken, _rate, _delay) \
- struct clk clk_##_name = { \
- .ops = &clk_cken_ops, \
- .rate = _rate, \
- .cken = CKEN_##_cken, \
- .delay = _delay, \
- }
-
#define DEFINE_CK(_name, _cken, _ops) \
struct clk clk_##_name = { \
.ops = _ops, \
.delay = _delay, \
}
- extern const struct clkops clk_cken_ops;
-
- void clk_cken_enable(struct clk *clk);
- void clk_cken_disable(struct clk *clk);
-
- #ifdef CONFIG_PXA3xx
- #define DEFINE_PXA3_CKEN(_name, _cken, _rate, _delay) \
+ #define DEFINE_PXA2_CKEN(_name, _cken, _rate, _delay) \
struct clk clk_##_name = { \
- .ops = &clk_pxa3xx_cken_ops, \
+ .ops = &clk_pxa2xx_cken_ops, \
.rate = _rate, \
.cken = CKEN_##_cken, \
.delay = _delay, \
}
- #define DEFINE_PXA3_CK(_name, _cken, _ops) \
+ extern const struct clkops clk_pxa2xx_cken_ops;
+
+ void clk_pxa2xx_cken_enable(struct clk *clk);
+ void clk_pxa2xx_cken_disable(struct clk *clk);
+
+ extern struct sysdev_class pxa2xx_clock_sysclass;
+
+ #if defined(CONFIG_PXA3xx) || defined(CONFIG_PXA95x)
+ #define DEFINE_PXA3_CKEN(_name, _cken, _rate, _delay) \
struct clk clk_##_name = { \
- .ops = _ops, \
+ .ops = &clk_pxa3xx_cken_ops, \
+ .rate = _rate, \
.cken = CKEN_##_cken, \
+ .delay = _delay, \
}
extern const struct clkops clk_pxa3xx_cken_ops;
+ extern const struct clkops clk_pxa3xx_hsio_ops;
+ extern const struct clkops clk_pxa3xx_ac97_ops;
+ extern const struct clkops clk_pxa3xx_pout_ops;
+ extern const struct clkops clk_pxa3xx_smemc_ops;
+
extern void clk_pxa3xx_cken_enable(struct clk *);
extern void clk_pxa3xx_cken_disable(struct clk *);
- #endif
+ extern struct sysdev_class pxa3xx_clock_sysclass;
+ #endif
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <mach/hardware.h>
-
+ #include <mach/smemc.h>
#include <mach/pxa2xx-regs.h>
#define MDREFR_KDIV 0x200a4000 // all banks
@ Let us ensure we jump to resume_after_mmu only when the mcr above
@ actually took effect. They call it the "cpwait" operation.
- mrc p15, 0, r1, c2, c0, 0 @ queue a dependency on CP15
- sub pc, r2, r1, lsr #32 @ jump to virtual addr
+ mrc p15, 0, r0, c2, c0, 0 @ queue a dependency on CP15
+ sub pc, r2, r0, lsr #32 @ jump to virtual addr
nop
nop
nop
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
-
-#include <asm/clkdev.h>
+#include <linux/clkdev.h>
#include <plat/mtu.h>
#include <mach/hardware.h>
#include "clock.h"
+ #ifdef CONFIG_DEBUG_FS
+ #include <linux/debugfs.h>
+ #include <linux/uaccess.h> /* for copy_from_user */
+ static LIST_HEAD(clk_list);
+ #endif
+
#define PRCC_PCKEN 0x00
#define PRCC_PCKDIS 0x04
#define PRCC_KCKEN 0x08
{
void __iomem *addr = __io_address(UX500_PRCMU_BASE)
+ PRCM_TCR;
- u32 tcr = readl(addr);
+ u32 tcr;
int mtu = (int) clk->data;
/*
* One of these is selected eventually
unsigned long mturate;
unsigned long retclk;
+ /*
+ * On a startup, always conifgure the TCR to the doze mode;
+ * bootloaders do it for us. Do this in the kernel too.
+ */
+ writel(PRCM_TCR_DOZE_MODE, addr);
+
+ tcr = readl(addr);
+
/* Get the rate from the parent as a default */
if (clk->parent_periph)
mturate = clk_get_rate(clk->parent_periph);
/* We need to be connected SOMEWHERE */
BUG();
- /*
- * Are we in doze mode?
- * In this mode the parent peripheral or the fixed 32768 Hz
- * clock is fed into the block.
- */
- if (!(tcr & PRCM_TCR_DOZE_MODE)) {
- /*
- * Here we're using the clock input from the APE ULP
- * clock domain. But first: are the timers stopped?
- */
- if (tcr & PRCM_TCR_STOPPED) {
- clk32k = 0;
- mturate = 0;
- } else {
- /* Else default mode: 0 and 2.4 MHz */
- clk32k = 0;
- if (cpu_is_u5500())
- /* DB5500 divides by 8 */
- mturate /= 8;
- else if (cpu_is_u8500ed()) {
- /*
- * This clocking setting must not be used
- * in the ED chip, it is simply not
- * connected anywhere!
- */
- mturate = 0;
- BUG();
- } else
- /*
- * In this mode the ulp38m4 clock is divided
- * by a factor 16, on the DB8500 typically
- * 38400000 / 16 ~ 2.4 MHz.
- * TODO: Replace the constant with a reference
- * to the ULP source once this is modeled.
- */
- mturate = 38400000 / 16;
- }
- }
-
/* Return the clock selected for this MTU */
if (tcr & (1 << mtu))
retclk = clk32k;
};
static struct clk clk_32khz = {
+ .name = "clk_32khz",
.rate = 32000,
};
*/
/* Peripheral Cluster #1 */
- static DEFINE_PRCC_CLK(1, i2c4, 10, 9, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(1, i2c4, 10, 9, &clk_i2cclk);
static DEFINE_PRCC_CLK(1, gpio0, 9, -1, NULL);
- static DEFINE_PRCC_CLK(1, slimbus0, 8, 8, &clk_slimclk);
- static DEFINE_PRCC_CLK(1, spi3_ed, 7, 7, NULL);
- static DEFINE_PRCC_CLK(1, spi3_v1, 7, -1, NULL);
- static DEFINE_PRCC_CLK(1, i2c2, 6, 6, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(1, slimbus0, 8, 8, &clk_slimclk);
+ static DEFINE_PRCC_CLK(1, spi3_ed, 7, 7, NULL);
+ static DEFINE_PRCC_CLK(1, spi3_v1, 7, -1, NULL);
+ static DEFINE_PRCC_CLK(1, i2c2, 6, 6, &clk_i2cclk);
static DEFINE_PRCC_CLK(1, sdi0, 5, 5, &clk_sdmmcclk);
- static DEFINE_PRCC_CLK(1, msp1_ed, 4, 4, &clk_msp02clk);
- static DEFINE_PRCC_CLK(1, msp1_v1, 4, 4, &clk_msp1clk);
- static DEFINE_PRCC_CLK(1, msp0, 3, 3, &clk_msp02clk);
- static DEFINE_PRCC_CLK(1, i2c1, 2, 2, &clk_i2cclk);
- static DEFINE_PRCC_CLK(1, uart1, 1, 1, &clk_uartclk);
- static DEFINE_PRCC_CLK(1, uart0, 0, 0, &clk_uartclk);
+ static DEFINE_PRCC_CLK(1, msp1_ed, 4, 4, &clk_msp02clk);
+ static DEFINE_PRCC_CLK(1, msp1_v1, 4, 4, &clk_msp1clk);
+ static DEFINE_PRCC_CLK(1, msp0, 3, 3, &clk_msp02clk);
+ static DEFINE_PRCC_CLK(1, i2c1, 2, 2, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(1, uart1, 1, 1, &clk_uartclk);
+ static DEFINE_PRCC_CLK(1, uart0, 0, 0, &clk_uartclk);
/* Peripheral Cluster #2 */
static DEFINE_PRCC_CLK(2, gpio1_ed, 12, -1, NULL);
- static DEFINE_PRCC_CLK(2, ssitx_ed, 11, -1, NULL);
- static DEFINE_PRCC_CLK(2, ssirx_ed, 10, -1, NULL);
- static DEFINE_PRCC_CLK(2, spi0_ed, 9, -1, NULL);
- static DEFINE_PRCC_CLK(2, sdi3_ed, 8, 6, &clk_sdmmcclk);
- static DEFINE_PRCC_CLK(2, sdi1_ed, 7, 5, &clk_sdmmcclk);
- static DEFINE_PRCC_CLK(2, msp2_ed, 6, 4, &clk_msp02clk);
- static DEFINE_PRCC_CLK(2, sdi4_ed, 4, 2, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(2, ssitx_ed, 11, -1, NULL);
+ static DEFINE_PRCC_CLK(2, ssirx_ed, 10, -1, NULL);
+ static DEFINE_PRCC_CLK(2, spi0_ed, 9, -1, NULL);
+ static DEFINE_PRCC_CLK(2, sdi3_ed, 8, 6, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(2, sdi1_ed, 7, 5, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(2, msp2_ed, 6, 4, &clk_msp02clk);
+ static DEFINE_PRCC_CLK(2, sdi4_ed, 4, 2, &clk_sdmmcclk);
static DEFINE_PRCC_CLK(2, pwl_ed, 3, 1, NULL);
- static DEFINE_PRCC_CLK(2, spi1_ed, 2, -1, NULL);
- static DEFINE_PRCC_CLK(2, spi2_ed, 1, -1, NULL);
- static DEFINE_PRCC_CLK(2, i2c3_ed, 0, 0, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(2, spi1_ed, 2, -1, NULL);
+ static DEFINE_PRCC_CLK(2, spi2_ed, 1, -1, NULL);
+ static DEFINE_PRCC_CLK(2, i2c3_ed, 0, 0, &clk_i2cclk);
static DEFINE_PRCC_CLK(2, gpio1_v1, 11, -1, NULL);
- static DEFINE_PRCC_CLK(2, ssitx_v1, 10, 7, NULL);
- static DEFINE_PRCC_CLK(2, ssirx_v1, 9, 6, NULL);
- static DEFINE_PRCC_CLK(2, spi0_v1, 8, -1, NULL);
- static DEFINE_PRCC_CLK(2, sdi3_v1, 7, 5, &clk_sdmmcclk);
- static DEFINE_PRCC_CLK(2, sdi1_v1, 6, 4, &clk_sdmmcclk);
- static DEFINE_PRCC_CLK(2, msp2_v1, 5, 3, &clk_msp02clk);
- static DEFINE_PRCC_CLK(2, sdi4_v1, 4, 2, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(2, ssitx_v1, 10, 7, NULL);
+ static DEFINE_PRCC_CLK(2, ssirx_v1, 9, 6, NULL);
+ static DEFINE_PRCC_CLK(2, spi0_v1, 8, -1, NULL);
+ static DEFINE_PRCC_CLK(2, sdi3_v1, 7, 5, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(2, sdi1_v1, 6, 4, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(2, msp2_v1, 5, 3, &clk_msp02clk);
+ static DEFINE_PRCC_CLK(2, sdi4_v1, 4, 2, &clk_sdmmcclk);
static DEFINE_PRCC_CLK(2, pwl_v1, 3, 1, NULL);
- static DEFINE_PRCC_CLK(2, spi1_v1, 2, -1, NULL);
- static DEFINE_PRCC_CLK(2, spi2_v1, 1, -1, NULL);
- static DEFINE_PRCC_CLK(2, i2c3_v1, 0, 0, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(2, spi1_v1, 2, -1, NULL);
+ static DEFINE_PRCC_CLK(2, spi2_v1, 1, -1, NULL);
+ static DEFINE_PRCC_CLK(2, i2c3_v1, 0, 0, &clk_i2cclk);
/* Peripheral Cluster #3 */
- static DEFINE_PRCC_CLK(3, gpio2, 8, -1, NULL);
- static DEFINE_PRCC_CLK(3, sdi5, 7, 7, &clk_sdmmcclk);
- static DEFINE_PRCC_CLK(3, uart2, 6, 6, &clk_uartclk);
- static DEFINE_PRCC_CLK(3, ske, 5, 5, &clk_32khz);
- static DEFINE_PRCC_CLK(3, sdi2, 4, 4, &clk_sdmmcclk);
- static DEFINE_PRCC_CLK(3, i2c0, 3, 3, &clk_i2cclk);
- static DEFINE_PRCC_CLK(3, ssp1_ed, 2, 2, &clk_i2cclk);
- static DEFINE_PRCC_CLK(3, ssp0_ed, 1, 1, &clk_i2cclk);
- static DEFINE_PRCC_CLK(3, ssp1_v1, 2, 2, &clk_sspclk);
- static DEFINE_PRCC_CLK(3, ssp0_v1, 1, 1, &clk_sspclk);
- static DEFINE_PRCC_CLK(3, fsmc, 0, -1, NULL);
+ static DEFINE_PRCC_CLK(3, gpio2, 8, -1, NULL);
+ static DEFINE_PRCC_CLK(3, sdi5, 7, 7, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(3, uart2, 6, 6, &clk_uartclk);
+ static DEFINE_PRCC_CLK(3, ske, 5, 5, &clk_32khz);
+ static DEFINE_PRCC_CLK(3, sdi2, 4, 4, &clk_sdmmcclk);
+ static DEFINE_PRCC_CLK(3, i2c0, 3, 3, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(3, ssp1_ed, 2, 2, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(3, ssp0_ed, 1, 1, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(3, ssp1_v1, 2, 2, &clk_sspclk);
+ static DEFINE_PRCC_CLK(3, ssp0_v1, 1, 1, &clk_sspclk);
+ static DEFINE_PRCC_CLK(3, fsmc, 0, -1, NULL);
/* Peripheral Cluster #4 is in the always on domain */
/* Peripheral Cluster #5 */
- static DEFINE_PRCC_CLK(5, gpio3, 1, -1, NULL);
- static DEFINE_PRCC_CLK(5, usb_ed, 0, 0, &clk_i2cclk);
- static DEFINE_PRCC_CLK(5, usb_v1, 0, 0, NULL);
+ static DEFINE_PRCC_CLK(5, gpio3, 1, -1, NULL);
+ static DEFINE_PRCC_CLK(5, usb_ed, 0, 0, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(5, usb_v1, 0, 0, NULL);
/* Peripheral Cluster #6 */
/* MTU ID in data */
static DEFINE_PRCC_CLK_CUSTOM(6, mtu1_v1, 8, -1, NULL, clk_mtu_get_rate, 1);
static DEFINE_PRCC_CLK_CUSTOM(6, mtu0_v1, 7, -1, NULL, clk_mtu_get_rate, 0);
- static DEFINE_PRCC_CLK(6, cfgreg_v1, 6, 6, NULL);
- static DEFINE_PRCC_CLK(6, dmc_ed, 6, 6, NULL);
- static DEFINE_PRCC_CLK(6, hash1, 5, -1, NULL);
- static DEFINE_PRCC_CLK(6, unipro_v1, 4, 1, &clk_uniproclk);
- static DEFINE_PRCC_CLK(6, cryp1_ed, 4, -1, NULL);
- static DEFINE_PRCC_CLK(6, pka, 3, -1, NULL);
- static DEFINE_PRCC_CLK(6, hash0, 2, -1, NULL);
- static DEFINE_PRCC_CLK(6, cryp0, 1, -1, NULL);
- static DEFINE_PRCC_CLK(6, rng_ed, 0, 0, &clk_i2cclk);
- static DEFINE_PRCC_CLK(6, rng_v1, 0, 0, &clk_rngclk);
+ static DEFINE_PRCC_CLK(6, cfgreg_v1, 6, 6, NULL);
+ static DEFINE_PRCC_CLK(6, dmc_ed, 6, 6, NULL);
+ static DEFINE_PRCC_CLK(6, hash1, 5, -1, NULL);
+ static DEFINE_PRCC_CLK(6, unipro_v1, 4, 1, &clk_uniproclk);
+ static DEFINE_PRCC_CLK(6, cryp1_ed, 4, -1, NULL);
+ static DEFINE_PRCC_CLK(6, pka, 3, -1, NULL);
+ static DEFINE_PRCC_CLK(6, hash0, 2, -1, NULL);
+ static DEFINE_PRCC_CLK(6, cryp0, 1, -1, NULL);
+ static DEFINE_PRCC_CLK(6, rng_ed, 0, 0, &clk_i2cclk);
+ static DEFINE_PRCC_CLK(6, rng_v1, 0, 0, &clk_rngclk);
/* Peripheral Cluster #7 */
- static DEFINE_PRCC_CLK(7, tzpc0_ed, 4, -1, NULL);
+ static DEFINE_PRCC_CLK(7, tzpc0_ed, 4, -1, NULL);
/* MTU ID in data */
static DEFINE_PRCC_CLK_CUSTOM(7, mtu1_ed, 3, -1, NULL, clk_mtu_get_rate, 1);
static DEFINE_PRCC_CLK_CUSTOM(7, mtu0_ed, 2, -1, NULL, clk_mtu_get_rate, 0);
- static DEFINE_PRCC_CLK(7, wdg_ed, 1, -1, NULL);
- static DEFINE_PRCC_CLK(7, cfgreg_ed, 0, -1, NULL);
+ static DEFINE_PRCC_CLK(7, wdg_ed, 1, -1, NULL);
+ static DEFINE_PRCC_CLK(7, cfgreg_ed, 0, -1, NULL);
- static struct clk clk_dummy_apb_pclk;
+ static struct clk clk_dummy_apb_pclk = {
+ .name = "apb_pclk",
+ };
static struct clk_lookup u8500_common_clks[] = {
CLK(dummy_apb_pclk, NULL, "apb_pclk"),
static struct clk_lookup u8500_v1_clks[] = {
/* Peripheral Cluster #1 */
- CLK(i2c4, "nmk-i2c.4", NULL),
+ CLK(i2c4, "nmk-i2c.4", NULL),
CLK(spi3_v1, "spi3", NULL),
CLK(msp1_v1, "msp1", NULL),
CLK(uiccclk, "uicc", NULL),
};
+ #ifdef CONFIG_DEBUG_FS
+ /*
+ * debugfs support to trace clock tree hierarchy and attributes with
+ * powerdebug
+ */
+ static struct dentry *clk_debugfs_root;
+
+ void __init clk_debugfs_add_table(struct clk_lookup *cl, size_t num)
+ {
+ while (num--) {
+ /* Check that the clock has not been already registered */
+ if (!(cl->clk->list.prev != cl->clk->list.next))
+ list_add_tail(&cl->clk->list, &clk_list);
+
+ cl++;
+ }
+ }
+
+ static ssize_t usecount_dbg_read(struct file *file, char __user *buf,
+ size_t size, loff_t *off)
+ {
+ struct clk *clk = file->f_dentry->d_inode->i_private;
+ char cusecount[128];
+ unsigned int len;
+
+ len = sprintf(cusecount, "%u\n", clk->enabled);
+ return simple_read_from_buffer(buf, size, off, cusecount, len);
+ }
+
+ static ssize_t rate_dbg_read(struct file *file, char __user *buf,
+ size_t size, loff_t *off)
+ {
+ struct clk *clk = file->f_dentry->d_inode->i_private;
+ char crate[128];
+ unsigned int rate;
+ unsigned int len;
+
+ rate = clk_get_rate(clk);
+ len = sprintf(crate, "%u\n", rate);
+ return simple_read_from_buffer(buf, size, off, crate, len);
+ }
+
+ static const struct file_operations usecount_fops = {
+ .read = usecount_dbg_read,
+ };
+
+ static const struct file_operations set_rate_fops = {
+ .read = rate_dbg_read,
+ };
+
+ static struct dentry *clk_debugfs_register_dir(struct clk *c,
+ struct dentry *p_dentry)
+ {
+ struct dentry *d, *clk_d, *child, *child_tmp;
+ char s[255];
+ char *p = s;
+
+ if (c->name == NULL)
+ p += sprintf(p, "BUG");
+ else
+ p += sprintf(p, "%s", c->name);
+
+ clk_d = debugfs_create_dir(s, p_dentry);
+ if (!clk_d)
+ return NULL;
+
+ d = debugfs_create_file("usecount", S_IRUGO,
+ clk_d, c, &usecount_fops);
+ if (!d)
+ goto err_out;
+ d = debugfs_create_file("rate", S_IRUGO,
+ clk_d, c, &set_rate_fops);
+ if (!d)
+ goto err_out;
+ /*
+ * TODO : not currently available in ux500
+ * d = debugfs_create_x32("flags", S_IRUGO, clk_d, (u32 *)&c->flags);
+ * if (!d)
+ * goto err_out;
+ */
+
+ return clk_d;
+
+ err_out:
+ d = clk_d;
+ list_for_each_entry_safe(child, child_tmp, &d->d_subdirs, d_u.d_child)
+ debugfs_remove(child);
+ debugfs_remove(clk_d);
+ return NULL;
+ }
+
+ static void clk_debugfs_remove_dir(struct dentry *cdentry)
+ {
+ struct dentry *d, *child, *child_tmp;
+
+ d = cdentry;
+ list_for_each_entry_safe(child, child_tmp, &d->d_subdirs, d_u.d_child)
+ debugfs_remove(child);
+ debugfs_remove(cdentry);
+ return ;
+ }
+
+ static int clk_debugfs_register_one(struct clk *c)
+ {
+ struct clk *pa = c->parent_periph;
+ struct clk *bpa = c->parent_cluster;
+
+ if (!(bpa && !pa)) {
+ c->dent = clk_debugfs_register_dir(c,
+ pa ? pa->dent : clk_debugfs_root);
+ if (!c->dent)
+ return -ENOMEM;
+ }
+
+ if (bpa) {
+ c->dent_bus = clk_debugfs_register_dir(c,
+ bpa->dent_bus ? bpa->dent_bus : bpa->dent);
+ if ((!c->dent_bus) && (c->dent)) {
+ clk_debugfs_remove_dir(c->dent);
+ c->dent = NULL;
+ return -ENOMEM;
+ }
+ }
+ return 0;
+ }
+
+ static int clk_debugfs_register(struct clk *c)
+ {
+ int err;
+ struct clk *pa = c->parent_periph;
+ struct clk *bpa = c->parent_cluster;
+
+ if (pa && (!pa->dent && !pa->dent_bus)) {
+ err = clk_debugfs_register(pa);
+ if (err)
+ return err;
+ }
+
+ if (bpa && (!bpa->dent && !bpa->dent_bus)) {
+ err = clk_debugfs_register(bpa);
+ if (err)
+ return err;
+ }
+
+ if ((!c->dent) && (!c->dent_bus)) {
+ err = clk_debugfs_register_one(c);
+ if (err)
+ return err;
+ }
+ return 0;
+ }
+
+ static int __init clk_debugfs_init(void)
+ {
+ struct clk *c;
+ struct dentry *d;
+ int err;
+
+ d = debugfs_create_dir("clock", NULL);
+ if (!d)
+ return -ENOMEM;
+ clk_debugfs_root = d;
+
+ list_for_each_entry(c, &clk_list, list) {
+ err = clk_debugfs_register(c);
+ if (err)
+ goto err_out;
+ }
+ return 0;
+ err_out:
+ debugfs_remove_recursive(clk_debugfs_root);
+ return err;
+ }
+
+ late_initcall(clk_debugfs_init);
+ #endif /* defined(CONFIG_DEBUG_FS) */
+
int __init clk_init(void)
{
if (cpu_is_u8500ed()) {
/* Clock tree for U5500 not implemented yet */
clk_prcc_ops.enable = clk_prcc_ops.disable = NULL;
clk_prcmu_ops.enable = clk_prcmu_ops.disable = NULL;
- clk_per6clk.rate = 26000000;
+ clk_uartclk.rate = 36360000;
+ clk_sdmmcclk.rate = 99900000;
}
clkdev_add_table(u8500_common_clks, ARRAY_SIZE(u8500_common_clks));
else
clkdev_add_table(u8500_v1_clks, ARRAY_SIZE(u8500_v1_clks));
+ #ifdef CONFIG_DEBUG_FS
+ clk_debugfs_add_table(u8500_common_clks, ARRAY_SIZE(u8500_common_clks));
+ if (cpu_is_u8500ed())
+ clk_debugfs_add_table(u8500_ed_clks, ARRAY_SIZE(u8500_ed_clks));
+ else
+ clk_debugfs_add_table(u8500_v1_clks, ARRAY_SIZE(u8500_v1_clks));
+ #endif
return 0;
}
*/
#include <linux/platform_device.h>
- #include <linux/amba/bus.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <mach/hardware.h>
#include <mach/setup.h>
#include <mach/devices.h>
+ #include <mach/prcmu.h>
#include "clock.h"
__IO_DEV_DESC(UX500_BACKUPRAM0_BASE, SZ_8K),
};
- static struct amba_device *ux500_amba_devs[] __initdata = {
- &ux500_pl031_device,
- };
-
void __init ux500_map_io(void)
{
iotable_init(ux500_io_desc, ARRAY_SIZE(ux500_io_desc));
}
- void __init ux500_init_devices(void)
- {
- amba_add_devices(ux500_amba_devs, ARRAY_SIZE(ux500_amba_devs));
- }
-
void __init ux500_init_irq(void)
{
- gic_dist_init(0, __io_address(UX500_GIC_DIST_BASE), 29);
- gic_cpu_init(0, __io_address(UX500_GIC_CPU_BASE));
+ gic_init(0, 29, __io_address(UX500_GIC_DIST_BASE),
+ __io_address(UX500_GIC_CPU_BASE));
/*
* Init clocks here so that they are available for system timer
* initialization.
*/
+ if (cpu_is_u8500())
+ prcmu_early_init();
clk_init();
}
#include <linux/io.h>
#include <asm/cacheflush.h>
-#include <asm/localtimer.h>
#include <asm/smp_scu.h>
#include <mach/hardware.h>
* control for which core is the next to come out of the secondary
* boot "holding pen"
*/
- volatile int __cpuinitdata pen_release = -1;
+ volatile int pen_release = -1;
-static unsigned int __init get_core_count(void)
+/*
+ * Write pen_release in a way that is guaranteed to be visible to all
+ * observers, irrespective of whether they're taking part in coherency
+ * or not. This is necessary for the hotplug code to work reliably.
+ */
+static void write_pen_release(int val)
{
- return scu_get_core_count(__io_address(UX500_SCU_BASE));
+ pen_release = val;
+ smp_wmb();
+ __cpuc_flush_dcache_area((void *)&pen_release, sizeof(pen_release));
+ outer_clean_range(__pa(&pen_release), __pa(&pen_release + 1));
}
static DEFINE_SPINLOCK(boot_lock);
void __cpuinit platform_secondary_init(unsigned int cpu)
{
- trace_hardirqs_off();
-
/*
* if any interrupts are already enabled for the primary
* core (e.g. timer irq), then they will not have been enabled
* for us: do so
*/
- gic_cpu_init(0, __io_address(UX500_GIC_CPU_BASE));
+ gic_secondary_init(0);
/*
* let the primary processor know we're out of the
* pen, then head off into the C entry point
*/
- pen_release = -1;
+ write_pen_release(-1);
/*
* Synchronise with the boot thread.
* the holding pen - release it, then wait for it to flag
* that it has been released by resetting pen_release.
*/
- pen_release = cpu;
- __cpuc_flush_dcache_area((void *)&pen_release, sizeof(pen_release));
- outer_clean_range(__pa(&pen_release), __pa(&pen_release) + 1);
+ write_pen_release(cpu);
- smp_cross_call(cpumask_of(cpu));
+ smp_cross_call(cpumask_of(cpu), 1);
timeout = jiffies + (1 * HZ);
while (time_before(jiffies, timeout)) {
static void __init wakeup_secondary(void)
{
- /* nobody is to be released from the pen yet */
- pen_release = -1;
-
/*
* write the address of secondary startup into the backup ram register
* at offset 0x1FF4, then write the magic number 0xA1FEED01 to the
*/
void __init smp_init_cpus(void)
{
- unsigned int i, ncores = get_core_count();
+ unsigned int i, ncores;
- for (i = 0; i < ncores; i++)
- set_cpu_possible(i, true);
-}
-
-void __init smp_prepare_cpus(unsigned int max_cpus)
-{
- unsigned int ncores = get_core_count();
- unsigned int cpu = smp_processor_id();
- int i;
+ ncores = scu_get_core_count(__io_address(UX500_SCU_BASE));
/* sanity check */
- if (ncores == 0) {
- printk(KERN_ERR
- "U8500: strange CM count of 0? Default to 1\n");
- ncores = 1;
- }
-
- if (ncores > num_possible_cpus()) {
+ if (ncores > NR_CPUS) {
printk(KERN_WARNING
"U8500: no. of cores (%d) greater than configured "
"maximum of %d - clipping\n",
- ncores, num_possible_cpus());
- ncores = num_possible_cpus();
+ ncores, NR_CPUS);
+ ncores = NR_CPUS;
}
- smp_store_cpu_info(cpu);
+ for (i = 0; i < ncores; i++)
+ set_cpu_possible(i, true);
+}
- /*
- * are we trying to boot more cores than exist?
- */
- if (max_cpus > ncores)
- max_cpus = ncores;
+void __init platform_smp_prepare_cpus(unsigned int max_cpus)
+{
+ int i;
/*
* Initialise the present map, which describes the set of CPUs
for (i = 0; i < max_cpus; i++)
set_cpu_present(i, true);
- if (max_cpus > 1) {
- /*
- * Enable the local timer or broadcast device for the
- * boot CPU, but only if we have more than one CPU.
- */
- percpu_timer_setup();
- scu_enable(__io_address(UX500_SCU_BASE));
- wakeup_secondary();
- }
+ scu_enable(__io_address(UX500_SCU_BASE));
+ wakeup_secondary();
}
for which the CPU ID is equal to the ARM926 ID.
Relevant for Feroceon-1850 and early Feroceon-2850.
+ # Marvell PJ4
+ config CPU_PJ4
+ bool
+ select CPU_V7
+ select ARM_THUMBEE
+
# ARMv6
config CPU_V6
bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX || ARCH_DOVE
help
Processor has the CP15 register, which has MPU related registers.
+config CPU_USE_DOMAINS
+ bool
+ depends on MMU
+ default y if !CPU_32v6K
+ help
+ This option enables or disables the use of domain switching
+ via the set_fs() function.
+
#
# CPU supports 36-bit I/O
#
Say Y here if you have a CPU with the ThumbEE extension and code to
make use of it. Say N for code that can run on CPUs without ThumbEE.
+config SWP_EMULATE
+ bool "Emulate SWP/SWPB instructions"
+ depends on CPU_V7
+ select HAVE_PROC_CPU if PROC_FS
+ default y if SMP
+ help
+ ARMv6 architecture deprecates use of the SWP/SWPB instructions.
+ ARMv7 multiprocessing extensions introduce the ability to disable
+ these instructions, triggering an undefined instruction exception
+ when executed. Say Y here to enable software emulation of these
+ instructions for userspace (not kernel) using LDREX/STREX.
+ Also creates /proc/cpu/swp_emulation for statistics.
+
+ In some older versions of glibc [<=2.8] SWP is used during futex
+ trylock() operations with the assumption that the code will not
+ be preempted. This invalid assumption may be more likely to fail
+ with SWP emulation enabled, leading to deadlock of the user
+ application.
+
+ NOTE: when accessing uncached shared regions, LDREX/STREX rely
+ on an external transaction monitoring block called a global
+ monitor to maintain update atomicity. If your system does not
+ implement a global monitor, this option can cause programs that
+ perform SWP operations to uncached memory to deadlock.
+
+ If unsure, say Y.
+
config CPU_BIG_ENDIAN
bool "Build big-endian kernel"
depends on ARCH_SUPPORTS_BIG_ENDIAN
config CACHE_TAUROS2
bool "Enable the Tauros2 L2 cache controller"
- depends on (ARCH_DOVE || ARCH_MMP)
+ depends on (ARCH_DOVE || ARCH_MMP || CPU_PJ4)
default y
select OUTER_CACHE
help
sa1100_cs-y += sa1100_generic.o
sa1100_cs-$(CONFIG_SA1100_ASSABET) += sa1100_assabet.o
sa1100_cs-$(CONFIG_SA1100_CERF) += sa1100_cerf.o
-sa1100_cs-$(CONFIG_SA1100_COLLIE) += pxa2xx_sharpsl.o
+sa1100_cs-$(CONFIG_SA1100_COLLIE) += pxa2xx_sharpsl.o
sa1100_cs-$(CONFIG_SA1100_H3600) += sa1100_h3600.o
+sa1100_cs-$(CONFIG_SA1100_NANOENGINE) += sa1100_nanoengine.o
sa1100_cs-$(CONFIG_SA1100_SHANNON) += sa1100_shannon.o
sa1100_cs-$(CONFIG_SA1100_SIMPAD) += sa1100_simpad.o
pxa2xx-obj-$(CONFIG_MACH_STARGATE2) += pxa2xx_stargate2.o
pxa2xx-obj-$(CONFIG_MACH_VPAC270) += pxa2xx_vpac270.o
pxa2xx-obj-$(CONFIG_MACH_BALLOON3) += pxa2xx_balloon3.o
+ pxa2xx-obj-$(CONFIG_MACH_COLIBRI) += pxa2xx_colibri.o
+ pxa2xx-obj-$(CONFIG_MACH_COLIBRI320) += pxa2xx_colibri.o
obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y)
projects / mv-sheeva.git / commitdiff