[PATCH 2 01/18] I2C: OMAP2+: Set hwmod flags to only allow 16-bit accesses to i2c

[Paul Walmsley]

On Tue, 8 Mar 2011, Andy Green wrote:

> Peter Maydell noticed when running under QEMU he was getting
> errors reporting 32-bit access to I2C peripheral unit registers
> that are documented to be 8 or 16-bit only[1][2]
> 
> The I2C driver is blameless as it wraps its accesses in a
> function using __raw_writew and __raw_readw, it turned out it
> is the hwmod stuff.
> 
> However the hwmod code already has a flag to force a
> perhipheral unit to only be accessed using 16-bit operations.
> 
> This patch applies the 16-bit only flag to the 2430,
> OMAP3xxx and OMAP44xx hwmod structs.  2420 was already
> correctly marked up as 16-bit.
> 
> The 2430 change will need testing by TI as arranged
> in the comments to the previous patch version.
> 
> When the 16-bit flag is or-ed with other flags, it is placed
> first as requested in comments.
> 
> [1] OMAP4430 Technical reference manual section 23.1.6.2
> [2] OMAP3530 Techincal reference manual section 18.6
> 
> Cc: patches at linaro.org
> Cc: Ben Dooks <ben-linux at fluff.org>
> Reported-by: Peter Maydell <peter.maydell at linaro.org>
> Signed-off-by: Andy Green <andy.green at linaro.org>

For the OMAP2/3 hwmod data changes, makes sense to me.  

Acked-by: Paul Walmsley <paul at pwsan.com>


- Paul