[U-Boot-Users] [PATCH 1/2] Add support for a Freescale non-CPM SPIcontroller

[Ben Warren <biggerbadderben@gmail.com>]

Dave Liu wrote:
> On Sun, 2008-01-13 at 10:48 +0800, Ben Warren wrote:
>   
>> This patch adds support for the SPI controller found on Freescale
>> PowerPC
>> processors such as the MCP834x family.  Additionally, a new config
>> option,
>> CONFIG_HARD_SPI, is added for general purpose SPI controller use.
>>     
>
> Ben, Could you make the SPI drivers more generic/reuseable?
> IIRC, the 85xx part has the same SPI controller.
>
>   
Sure.  I don't have nearly the insight into the various Freescale 
products that you and your colleagues do.
> [snip]
>
>   
>> +#include <common.h>
>> +#include <spi.h>
>> +#include <asm/immap_83xx.h>
>>     
>
> Could you use the fsl_spi.h head? not 83xx..
>   
If the memory map is reused identically, then yes.
> [snip]
>
>   
>> diff --git a/include/asm-ppc/immap_83xx.h b/include/asm-
>> ppc/immap_83xx.h
>> index 34ea295..07ff400 100644
>> --- a/include/asm-ppc/immap_83xx.h
>> +++ b/include/asm-ppc/immap_83xx.h
>> @@ -397,6 +397,18 @@ typedef struct spi83xx {
>>         u8 res1[0xFD8];
>>  } spi83xx_t;
>>
>> +typedef struct spi834x
>> +{
>> +       u8 res0[0x20];  /* 0x0-0x01f reserved */
>> +       u32 mode;       /* mode register  */
>> +       u32 event;      /* event register */
>> +       u32 mask;       /* mask register  */
>> +       u32 com;        /* command register */
>> +       u32 tx;         /* transmit register */
>> +       u32 rx;         /* receive register */
>> +       u8 res1[0xC8];  /* fill up to 0x100 */
>> + } spi834x_t;
>>     
>
> please put this into fsl_spi.h to reuse for different 8xxx family.
>   
Can you confirm that the registers in 85xx are the same?  If so, I'll 
move this.
> Thanks,
> Dave
>
>
>