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SubjectRe: [warning: ugly, FYI] battery charging support for sharp sl-5500
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On Mon, 2005-07-25 at 07:46 +0200, Pavel Machek wrote:
> I took battery charging code from sharp and placed it in
> arch/arm/mach-sa1100/battery-collie.c (hope that's good place...). It
> still does not link, and will need complete rewrite, but... If you
> have done this already please let me know.
>
> #define CF_BUF_CTRL_BASE 0xF0800000
> #define SCP_REG(adr) (*(volatile unsigned short*)(CF_BUF_CTRL_BASE+(adr)))
>
> #define SCP_MCR 0x00
> #define SCP_CDR 0x04
> #define SCP_CSR 0x08
> #define SCP_CPR 0x0C
> #define SCP_CCR 0x10
> #define SCP_IRR 0x14
> #define SCP_IRM 0x14
> #define SCP_IMR 0x18
> #define SCP_ISR 0x1C
> #define SCP_GPCR 0x20
> #define SCP_GPWR 0x24
> #define SCP_GPRR 0x28
> #define SCP_REG_MCR SCP_REG(SCP_MCR)
> #define SCP_REG_CDR SCP_REG(SCP_CDR)
> #define SCP_REG_CSR SCP_REG(SCP_CSR)
> #define SCP_REG_CPR SCP_REG(SCP_CPR)
> #define SCP_REG_CCR SCP_REG(SCP_CCR)
> #define SCP_REG_IRR SCP_REG(SCP_IRR)
> #define SCP_REG_IRM SCP_REG(SCP_IRM)
> #define SCP_REG_IMR SCP_REG(SCP_IMR)
> #define SCP_REG_ISR SCP_REG(SCP_ISR)
> #define SCP_REG_GPCR SCP_REG(SCP_GPCR)
> #define SCP_REG_GPWR SCP_REG(SCP_GPWR)
> #define SCP_REG_GPRR SCP_REG(SCP_GPRR)

You'll find the scoop driver deals with the above
(arch/arm/common/scoop.c).

> #define FLASH_MEM_BASE 0xe8ffc000
> #define FLASH_DATA(adr) (*(volatile unsigned int*)(FLASH_MEM_BASE+(adr)))
> #define FLASH_DATA_F(adr) (*(volatile float32 *)(FLASH_MEM_BASE+(adr)))
> #define FLASH_MAGIC_CHG(a,b,c,d) ( ( d << 24 ) | ( c << 16 ) | ( b << 8 ) | a )
>
> // AD
> #define FLASH_AD_MAJIC FLASH_MAGIC_CHG('B','V','A','D')
> #define FLASH_AD_MAGIC_ADR 0x30
> #define FLASH_AD_DATA_ADR 0x34

and arch/arm/common/sharpsl_param.c with these.

> #define IRQ_GPIO_CO IRQ_GPIO20
> #define IRQ_GPIO_AC_IN IRQ_GPIO1

There will (or if not, there should) be an equivalent in collie.h for
the above.

I have similar problems with the corgi battery driver which is probably
even more of a mess than this. My conclusion is the whole lot needs
rewriting in a nice fashion before it can be included in mainline. My
work so far on the corgi code is here:

http://www.rpsys.net/openzaurus/patches/corgi_power-r24.patch
http://www.rpsys.net/openzaurus/patches/corgi_power1-r1.patch

I'm making progress in areas but I'm not sure how much can be shared
between devices. My plan is to split the above into two sections, a
battery driver and some power management code. The powermanagement code
can probably then make mainline. The battery driver still needs a lot of
work.

--
Richard



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