[U-Boot] spi: ti_qspi: Use 4-byte opcode for mmap read

[Tom Rini]

On Mon, Nov 23, 2015 at 05:43:36PM +0530, Vignesh R wrote:

> ti-qspi driver currently uses 3-byte addressing mode(and opcodes) for
> memory-mapped read. This restricts maximum addressable flash size to
> 16MB.
> Enable the 4-byte addressing(and use 4-byte opcode) for memory-mapped
> read to allow access to addresses above 16MB.
> 
> Signed-off-by: Ravi Babu <ravibabu at ti.com>
> [vigneshr at ti.com: Re-word commit description]
> Signed-off-by: Vignesh R <vigneshr at ti.com>

Applied to u-boot/master, thanks!

-- 
Tom
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