[U-Boot] Flag -mno-cache-volatile to bypass the cache

[Wolfgang Denk]

Dear ivanchuklist ivanchu,

In message <51a313240902051201k1977196cu314e60a1cfcd0e11 at mail.gmail.com> you wrote:
>
> I see also in cpu/nios an implementation of the spi core, it uses volatiles
> variables to access hardware, so it will not work. Nevertheless the
> implementation is correct.

I'm not a NIOS expert - but if it doesn't work, this should be fixed.
Patches welcome.

> I'm adding sd access by spi protocol to u-boot, so i created a new file
> called mmc_spi.c in cpu/nios2. I faced many problems. I just want to have
> access to the fat partition, then i wrote mmc_get_dev and mmc_read_block but
> i need to initialize the card so i implemented mmc_init (which add mmc
> command) and i don't want to write mmc_read/write/2info. Should i implement
> those functions?. In the other hand, should i use spi_xfer() to do spi
> transactions?.

Sorry, I don't know any of this code,

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"What terrible way to die."
"There are no good ways."
	-- Sulu and Kirk, "That Which Survives", stardate unknown