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linux/arch/arm/mach-shmobile/common.h

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ARM: mach-shmobile: SH-Mobile G3 support. This adds preliminary support for the SH-Mobile G-series. The SH-Mobile G-series is a series of ARM/SH multi-core CPUs that aside from the ARM MPU are primarily composed of existing SH IP blocks. This includes initial support for the SH7367 (SH-Mobile G3) CPU and the G3EVM reference board. Only timer, serial console, and NOR flash are supported at this point. Patches for the interrupt controller, pinmux support, clock framework and runtime pm will be submitted as feature patches on top of this. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-05 11:14:49 +00:00
#ifndef __ARCH_MACH_COMMON_H
#define __ARCH_MACH_COMMON_H
ARM: mach-shmobile: add shmobile_earlytimer_init() Add shmobile_earlytimer_init() that can be used to enable the earlytimer probing from the SoC code. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-06 08:36:14 +00:00
extern void shmobile_earlytimer_init(void);
ARM: shmobile: Add shared shmobile_init_delay() Introduce shmobile_init_delay() that gets CPU specific parameters from DT and sets up the early delay from there. This allows us to both remove frequency information from the C code and consolidate existing code. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-03-06 03:28:24 +00:00
extern void shmobile_init_delay(void);
ARM: shmobile: convert to twd_local_timer_register() interface Add support for the new smp_twd runtime registration interface to the shmobile platforms, and remove the old compile-time support. Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-01-10 19:44:19 +00:00
struct twd_local_timer;
ARM: mach-shmobile: early console support using earlyprintk Add support for early console to the SH-Mobile boards. Simply perform an early platform probe for "earlyprintk" to trigger the early serial console code in sh-sci.c. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-08 11:02:54 +00:00
extern void shmobile_setup_console(void);
ARM: shmobile: Add SMP boot function and argument Add code for mach-shmobile to allow specifying boot function and argument. Will initially be used for SMP together with SCU but may in the future also be used for deep sleep resume. This patch removes one inline virtual to physical address conversion. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-10 09:19:36 +00:00
extern void shmobile_boot_vector(void);
extern unsigned long shmobile_boot_fn;
extern unsigned long shmobile_boot_arg;
ARM: shmobile: Introduce shmobile_boot_size Introduce shmobile_boot_size that can be used by future SMP code to determine the size of the boot code that needs to be copied to internal SRAM. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-08-07 22:14:07 +00:00
extern unsigned long shmobile_boot_size;
ARM: shmobile: Introduce per-CPU SMP boot / sleep code Add per-CPU SMP boot / sleep code that can be used by all SoCs included in mach-shmobile. The boot code reads out the per-CPU MPIDR id value and matches it with the value stored for any CPU number, and if there is a match and the boot function is set as well then the boot function will be executed. The sleep code simply uses WFI and then jumps back to the boot code to see if anyone has asked to wake up that CPU, if not it will sleep again. Signed-off-by: Magnus Damm <damm@opensource.se> [horms+renesas@verge.net.au: Remove trailing whitespace] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-07-31 18:38:18 +00:00
extern void shmobile_smp_boot(void);
extern void shmobile_smp_sleep(void);
extern void shmobile_smp_hook(unsigned int cpu, unsigned long fn,
unsigned long arg);
ARM: shmobile: Introduce shmobile_smp_cpu_disable() Introduce the shared CPU Hotplug function shmobile_smp_cpu_disable() for mach-shmobile. It is useful for the case when all CPUs may be hotplugged, including CPU 0. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-08-07 22:13:30 +00:00
extern int shmobile_smp_cpu_disable(unsigned int cpu);
ARM: shmobile: Expose shmobile_invalidate_start() Expose shmobile_invalidate_start() in common.h for mach-shmobile. This function will be used for boot of secondary processors on future non-SCU SMP platforms. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-08-07 22:13:58 +00:00
extern void shmobile_invalidate_start(void);
ARM: shmobile: Add SCU boot function using argument Add a shmoible_boot_scu function that assumes that the base address of the SCU is passed in r0. This code is free from inline virtual to physical address conversion. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-10 09:19:46 +00:00
extern void shmobile_boot_scu(void);
ARM: shmobile: Introduce shared SCU SMP boot code Add SMP boot functions for SCU equipped mach-shmobile SoCs. At this point shmobile_smp_scu_prepare_cpus() controls the SCU and installs boot fn and arg, while shmobile_smp_scu_boot_secondary() currently does nothing. In the future the boot function and arg install code will be reworked, so the empty function is ground work for that. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-07-31 07:07:12 +00:00
extern void shmobile_smp_scu_prepare_cpus(unsigned int max_cpus);
ARM: shmobile: Add shared SCU CPU Hotplug code Add CPU Hotplug functions for SCU equipped mach-shmobile SoCs. The functions shmobile_smp_scu_cpu_die() together with shmobile_smp_scu_cpu_kill() perform basic shutdown and allows checking of shutdown status. These are written to work together with SMP boot code in headsmp-scu.S. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-07-31 07:07:49 +00:00
extern void shmobile_smp_scu_cpu_die(unsigned int cpu);
extern int shmobile_smp_scu_cpu_kill(unsigned int cpu);
ARM: shmobile: Shared APMU SMP support code without DT Introduce shared APMU SMP code for mach-shmobile. Both SMP boot up and CPU Hotplug is supported. This version does not use DT but if needed this will be added as an incremental feature patch. The code is designed around CONFIG_NR_CPUS and should in theory support any number of APMUs, however due to the current DT-less static design only a single APMU is supported. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-08-28 23:21:58 +00:00
extern void shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus);
extern int shmobile_smp_apmu_boot_secondary(unsigned int cpu,
struct task_struct *idle);
extern void shmobile_smp_apmu_cpu_die(unsigned int cpu);
extern int shmobile_smp_apmu_cpu_kill(unsigned int cpu);
ARM: mach-shmobile: sh7372 clock fixes Fixes for the sh7372 clock framework: - remove unused #include <linux/platform_device.h> - add sh7372 prefix to user modifiable root clocks - put modifiable root clock prototypes in header file - fix off-by-one id error on VEU MSTP clocks - make arrays static Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-20 14:45:03 +00:00
struct clk;
ARM: mach-shmobile: rename clk_init() to shmobile_clk_init() Rename clk_init() to shmobile_clk_init() to avoid a potential future name space collision with the common clock framework. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-02-29 12:41:30 +00:00
extern int shmobile_clk_init(void);
ARM: mach-shmobile: Run-time IRQ handler for INTCA Break-out INTC specific IRQ demux code from the file entry-macro-intc.S and register during run-time. Covers sh7367, sh7377 and sh7372. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-28 08:27:01 +00:00
extern void shmobile_handle_irq_intc(struct pt_regs *);
ARM: mach-shmobile: Suspend-to-RAM support This patch adds a simple Suspend-to-RAM implementation for SH-Mobile ARM. The struct shmobile_suspend_ops are kept global to allow cpu-specific code to override the callbacks if needed. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-04-28 17:23:28 +00:00
extern struct platform_suspend_ops shmobile_suspend_ops;
ARM: mach-shmobile: cpuidle single/global and last_state fixes The following commits break cpuidle on SH-Mobile ARM: 46bcfad cpuidle: Single/Global registration of idle states e978aa7 cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state This patch remedies these issues by up-porting the SH-Mobile code to fit with the above introduced framework changes. It is worth noting that the new code becomes significantly cleaner, so these framework changes are very welcome. At the same time this breakage could probably have been avoided by grepping for "last_state" and "cpuidle_register_driver". Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11 05:01:30 +00:00
struct cpuidle_driver;
ARM: shmobile: Make sh7372 cpuidle handling more straightforward The sh7372 cpuidle code uses the same artificially designed routine shmobile_cpuidle_enter() as the .enter() callback for all of its cpuidle states. However, shmobile_cpuidle_enter() calls a different "enter" function for each state using an array of function pointers populated by the sh7372 PM initialization code. Moreover, the states[] array of the shmobile cpuidle driver is populated by that code as well, although in principle it just might have been filled with static data. All of that complexity goes away if the sh7372 cpuidle code is allowed to define its own cpuidle driver structure that can be passed for registration to the common shmobile cpuidle initialization routine, so modify the code accordingly. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Magnus Damm <damm@opensource.se>
2012-08-15 18:58:19 +00:00
extern void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv);
ARM: mach-shmobile: Use shared clock framework Teach SH-Mobile ARM how to make use of the shared SH clock framework. This commit is one atomic switch that dumps the local hackery and instead links in the shared clock framework code in drivers/sh. A few local functions are kept in clock.c. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-12 14:21:24 +00:00
ARM: shmobile: use machine specific hook for late init Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Magnus Damm <damm@opensource.se> Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
2012-04-26 13:58:41 +00:00
#ifdef CONFIG_SUSPEND
int shmobile_suspend_init(void);
ARM: shmobile: APMU: Add Core-Standby-state for Suspend to RAM This patch add Core-Standby-state for Suspend to RAM. Signed-off-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Acked-by: Magnus Damm <damm+renesas@opensource.se> [horms+renesas@verge.net.au: rebase] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-29 07:24:27 +00:00
void shmobile_smp_apmu_suspend_init(void);
ARM: shmobile: use machine specific hook for late init Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Magnus Damm <damm@opensource.se> Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
2012-04-26 13:58:41 +00:00
#else
static inline int shmobile_suspend_init(void) { return 0; }
ARM: shmobile: rcar-gen2: correct return value of shmobile_smp_apmu_suspend_init The dummy shmobile_smp_apmu_suspend_init() function provided when CPU_IDLE is not set should not return a value as per the signature of the function. This problem appears to have been introduced by 867ba81f728f1daa ("ARM: shmobile: APMU: Add Core-Standby-state for Suspend to RAM"). Cc: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-16 11:21:13 +00:00
static inline void shmobile_smp_apmu_suspend_init(void) { }
ARM: shmobile: use machine specific hook for late init Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Magnus Damm <damm@opensource.se> Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
2012-04-26 13:58:41 +00:00
#endif
#ifdef CONFIG_CPU_IDLE
int shmobile_cpuidle_init(void);
#else
static inline int shmobile_cpuidle_init(void) { return 0; }
#endif
ARM: shmobile: add cpufreq-cpu0 driver for common SH-Mobile I add a new file(cpufreq.c) for the following reasons. - Registration of platform_device must be unified in SH-Mobile. - We can't create a node of cpufreq drivers into device tree. (Because cpufreq driver is virtual device.) Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-03 12:02:45 +00:00
#ifdef CONFIG_CPU_FREQ
int shmobile_cpufreq_init(void);
#else
static inline int shmobile_cpufreq_init(void) { return 0; }
#endif
ARM: shmobile: Common shmobile_scu_base in headsmp-scu.S Update the code in headsmp-scu.S to use a global shmobile_scu_base variable both for convenient SCU base address storage and for the early SCU setup code in shmobile_secondary_vector_scu. With this patch applied r8a7779, sh73a0 and EMEV2 all make use of the global shmobile_scu_base variable. However only sh73a0 makes use of the SCU bring up code in shmobile_secondary_vector_scu. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-02-13 13:47:17 +00:00
extern void __iomem *shmobile_scu_base;
ARM: SoC: convert shmobile SMP to SMP operations Convert shmobile SMP platforms to use struct smp_operations to provide their SMP and CPU hotplug operations. Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-09-08 12:15:22 +00:00
ARM: shmobile: mark shmobile_init_late as __init Patch 35f2b0bd59 "ARM: shmobile: Move definition of shmobile_init_late() to header" moved the definition of the shmobile_init_late function, but dropped the __init annotation, which is now causing warnings because the function calls shmobile_suspend_init, which is also marked init. Without this patch, building kota2_defconfig results in: WARNING: vmlinux.o(.text+0xb7c8): Section mismatch in reference from the function shmobile_init_late() to the function .init.text:shmobile_suspend_init() The function shmobile_init_late() references the function __init shmobile_suspend_init(). This is often because shmobile_init_late lacks a __init annotation or the annotation of shmobile_suspend_init is wrong. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Magnus Damm <damm@opensource.se> Cc: Simon Horman <horms@verge.net.au>
2012-09-23 22:36:35 +00:00
static inline void __init shmobile_init_late(void)
ARM: shmobile: Move definition of shmobile_init_late() to header The role of the only function in the common.c file in arch/arm/mach-shmobile, shmobile_init_late(), is to call two initializers whose definitions depend on kernel configuration options. Those initializers may very well be called from a static inline function in arm/mach-shmobile/include/mach/common.h, though, in which makes the code a bit easier to read. Moreover, the common.c may be dropped entirely then. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Magnus Damm <damm@opensource.se>
2012-08-15 18:57:27 +00:00
{
shmobile_suspend_init();
shmobile_cpuidle_init();
ARM: shmobile: add cpufreq-cpu0 driver for common SH-Mobile I add a new file(cpufreq.c) for the following reasons. - Registration of platform_device must be unified in SH-Mobile. - We can't create a node of cpufreq drivers into device tree. (Because cpufreq driver is virtual device.) Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-03 12:02:45 +00:00
shmobile_cpufreq_init();
ARM: shmobile: Move definition of shmobile_init_late() to header The role of the only function in the common.c file in arch/arm/mach-shmobile, shmobile_init_late(), is to call two initializers whose definitions depend on kernel configuration options. Those initializers may very well be called from a static inline function in arm/mach-shmobile/include/mach/common.h, though, in which makes the code a bit easier to read. Moreover, the common.c may be dropped entirely then. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Magnus Damm <damm@opensource.se>
2012-08-15 18:57:27 +00:00
}
ARM: mach-shmobile: SH-Mobile G3 support. This adds preliminary support for the SH-Mobile G-series. The SH-Mobile G-series is a series of ARM/SH multi-core CPUs that aside from the ARM MPU are primarily composed of existing SH IP blocks. This includes initial support for the SH7367 (SH-Mobile G3) CPU and the G3EVM reference board. Only timer, serial console, and NOR flash are supported at this point. Patches for the interrupt controller, pinmux support, clock framework and runtime pm will be submitted as feature patches on top of this. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-05 11:14:49 +00:00
#endif /* __ARCH_MACH_COMMON_H */
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