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| author | Thomas Martitz <kugel@rockbox.org> | 2012-01-04 18:07:21 +0100 |
|---|---|---|
| committer | Thomas Martitz <kugel@rockbox.org> | 2012-01-22 18:46:44 +0100 |
| commit | 991ae1e39553172a7dd6cd8c634aebfce892e261 (patch) | |
| tree | 672a4583af663def399c4fefdbad060605397fbc /firmware/target/mips/ingenic_jz47xx/system-target.h | |
| parent | eaa83bd64775b87e943d345e2810deed44408776 (diff) | |
| download | rockbox-991ae1e39553172a7dd6cd8c634aebfce892e261.tar.gz rockbox-991ae1e39553172a7dd6cd8c634aebfce892e261.tar.bz2 rockbox-991ae1e39553172a7dd6cd8c634aebfce892e261.zip | |
Create fimrware/asm directory for assembly optimized stuff.
This dir is suitable for stuff that doesn't fit the target tree, e.g. because
it also builds on hosted or otherwise. It also has a generic subfolder for
fallback C implementations so that not all archs need to provide asm files.
SOURCES should only contain "foo.c" where foo.c includes the specific
<arch>/foo.c files from the subdirs using the preprocessor. This way automatic
selection of asm versions or generic C verion is possible.
For the start, the thread support files are moved, since ASM threads can
be used on hosted platforms as well. Since core_sleep() remains platform
specific it's moved to the corresponding system.h headers.
Change-Id: Iebff272f3407a6eaafeb7656ceb0ae9eca3f7cb9
Diffstat (limited to 'firmware/target/mips/ingenic_jz47xx/system-target.h')
| -rw-r--r-- | firmware/target/mips/ingenic_jz47xx/system-target.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/firmware/target/mips/ingenic_jz47xx/system-target.h b/firmware/target/mips/ingenic_jz47xx/system-target.h index caf1733158..1c2e7d7173 100644 --- a/firmware/target/mips/ingenic_jz47xx/system-target.h +++ b/firmware/target/mips/ingenic_jz47xx/system-target.h @@ -97,4 +97,28 @@ void dma_disable(void); #define DMA_IRQ(n) (IRQ_DMA_0 + (n)) #define GPIO_IRQ(n) (IRQ_GPIO_0 + (n)) +/*--------------------------------------------------------------------------- + * Put core in a power-saving state. + *--------------------------------------------------------------------------- + */ +static inline void core_sleep(void) +{ +#if CONFIG_CPU == JZ4732 + __cpm_idle_mode(); +#endif + asm volatile(".set mips32r2 \n" + "mfc0 $8, $12 \n" /* mfc t0, $12 */ + "move $9, $8 \n" /* move t1, t0 */ + "la $10, 0x8000000 \n" /* la t2, 0x8000000 */ + "or $8, $8, $10 \n" /* Enable reduced power mode */ + "mtc0 $8, $12 \n" /* mtc t0, $12 */ + "wait \n" + "mtc0 $9, $12 \n" /* mtc t1, $12 */ + ".set mips0 \n" + ::: "t0", "t1", "t2" + ); + enable_irq(); +} + + #endif /* __SYSTEM_TARGET_H_ */ |