Messages in this thread | | | Date | Tue, 3 Apr 2012 19:17:36 +0200 | From | Wolfram Sang <> | Subject | Re: [PATCH-v3] Support M95040 SPI EEPROM |
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> > > > + /* > > > > + * Certain EEPROMS have a size that is larger than the number of address > > > > + * bytes would allow (e.g. like M95040 from ST that has 512 Byte size > > > > + * but uses only one address byte (A0 to A7) for addressing.) For > > > > + * the extra address bit (A8, A16 or A24) bit 3 of the instruction byte > > > > + * is used. This instruction bit is normally defined as don't care for > > > > + * other AT25 like chips. > > > > + */ > > > > +#define EE_INSTR_BIT3_IS_ADDR 0x0010 > > > > > > Is there some guarantee that this chip flag will always have this > > > meaning? > > > > ? This is a driver flag. > > Sorry, I don't see it set anywhere, so unclear on where it comes from. > I thought it was from a generic spi probe.
Yeah, agreed, 'struct spi_eeprom' does not sound much like platform_data :/ Thanks for checking.
-- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [unhandled content-type:application/pgp-signature]
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