On 08/08/2012 12:48 AM, Laxman Dewangan wrote: > There is multiple version of cardhu starting from A01 to A07. > Cardhu A01 and A03 are not supported. Cardhu A02 will have > different sets of GPIOs for fixed regulator compare to > cardhu A04. The Cardhu A05, A06, A07 are compatibe with A04. > Based on cardhu version, the related dts file need to be chosen > like for cardhu A02, use tegra30-cardhu-a02.dts, cardhu A04 and > more, use tegra30-cardhu-a04.dts. > This patch create the DTS file A02 and A04 and convert tegra30-cardhu.dts > as dts include file. > > diff --git a/arch/arm/boot/dts/tegra30-cardhu.dts b/arch/arm/boot/dts/tegra30-cardhu.dtsi > +/** > + * This file contains common DT entry for all fab version of Cardhu. > + * There is multiple fab version of Cardhu starting from A01 to A07. > + * Cardhu fab version A01 and A03 are not supported. Cardhu fab version > + * A02 will have different sets of GPIOs for fixed regulator compare to > + * Cardhu fab version A04. The Cardhu fab version A05, A06, A07 are > + * compatible with fab version A04. Based on Cardhu fab version, the > + * related dts file need to be chosen like for Cardhu fab version A02, > + * use tegra30-cardhu-a02.dts, Cardhu fab version A04 and later, use > + * tegra30-cardhu-a04.dts. > + * The identification of board is done in two ways, by looking the sticker > + * on PCB and by reading board id eeprom. > + * The stciker will have number like 600-81291-1000-002 C.3. In this 4th > + * number is the fab version like here it is 002 and hence fab version A02. > + * The The (downstream internal) U-Boot of Cardhu display the board-id as "The The" > + * follows: > + * BoardID: 0C5B, SKU: 0A01, Fab: 02, Rev: 45.00 > + * In this Fab version is 02 i.e. A02. > + * The BoardID eeprom is interfaced through i2c5 (pwr_i2c). The location 0x8 > + * contains the Fab version. It is 1 byte wide. That should also mention the Board ID EEPROM's I2C address (0x56). I can fix up these two issues when I apply the patches. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
