On Tue, Jul 22, 2014 at 04:03:23PM +0530, pekon gupta wrote: > This patch adds support for x16 NAND device (MT29F2G16AAD) connected to GPMC > chip-select[0] on DRA7xx EVM. > As GPMC pins are shared by multiple devices, so in addition to this patch > following board settings are required for NAND device detection [1]: > > SW5.9 (GPMC_WPN) = OFF (logic-1) > SW5.1 (NAND_BOOTn) = ON (logic-0) /* Active-low */ > SW5.2 (NOR_BOOTn) = OFF (logic-1) > SW5.3 (eMMC_BOOTn) = OFF (logic-1) > SW5.4 (QSPI_BOOTn) = OFF (logic-1) > > And also set appropriate SYSBOOT configurations > SW2.1 (SYSBOOT[0]) = ON (logic-1) /* selects NAND Boot */ > SW2.2 (SYSBOOT[1]) = OFF (logic-0) /* selects NAND Boot */ > SW2.3 (SYSBOOT[2]) = OFF (logic-0) /* selects NAND Boot */ > SW2.4 (SYSBOOT[3]) = OFF (logic-0) /* selects NAND Boot */ > SW2.5 (SYSBOOT[4]) = ON (logic-1) /* selects NAND Boot */ > SW2.6 (SYSBOOT[5]) = ON (logic-1) /* selects NAND Boot */ > SW2.7 (SYSBOOT[6]) = OFF (logic-0) /* reserved */ > SW2.8 (SYSBOOT[7]) = OFF (logic-0) /* reserved */ > > SW3.1 (SYSBOOT[ 8])= ON (logic-1) /* selects SYS_CLK1 speed */ > SW3.2 (SYSBOOT[ 9])= OFF (logic-0) /* selects SYS_CLK1 speed */ > SW3.3 (SYSBOOT[10])= ON (logic-1) /* wait-pin monitoring = enabled */ > SW3.4 (SYSBOOT[11])= OFF (logic-0) /* device type: Addr/Data Muxed */ > SW3.5 (SYSBOOT[12])= ON (logic-1) /* device type: Addr/Data Muxed */ > SW3.6 (SYSBOOT[13])= ON (logic-1) /* device bus-width: 1(x16) */ > SW3.7 (SYSBOOT[14])= OFF (logic-0) /* reserved */ > SW3.8 (SYSBOOT[15])= ON (logic-1) /* reserved */ > > Following changes are required in board.cfg to enable NAND on J6-EVM: > > diff --git a/boards.cfg b/boards.cfg > -Active arm armv7 omap5 ti dra7xx > dra7xx_evm dra7xx_evm:CONS_INDEX=1 > > Lokesh Vutla <[email protected]> > +Active arm armv7 omap5 ti dra7xx > dra7xx_evm dra7xx_evm:CONS_INDEX=1,NAND > > Lokesh Vutla <[email protected]> > > [1] > http://processors.wiki.ti.com/index.php/Linux_Core_NAND_User%27s_Guide#Board_specific_configurations > > Signed-off-by: Pekon Gupta <[email protected]>
Applied to u-boot-ti/master, thanks! -- Tom
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