Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0b3fc7bb authored by Sekhar Nori's avatar Sekhar Nori Committed by Kevin Hilman
Browse files

davinci: dm6467t evm: setup NAND flash timing 



Setup NAND flash timing on DM6467T EVM.

Without the timing setup, the NAND flash on DM6467T
RevC EVM reports a number of random bad blocks because
of read errors.

Also, with this, copying a 100M file on RevB EVM takes
~35 sec against 1 minute 30 seconds earlier.

Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Acked-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent 18a8505c

arch/arm/mach-davinci/board-dm646x-evm.c

+14 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ 
#include <mach/nand.h>

#include <mach/clock.h>

#include <mach/cdce949.h>

#include <mach/aemif.h>



#include "clock.h"
@@ -71,6 +72,16 @@ static struct mtd_partition davinci_nand_partitions[] = { 
	}

};



static struct davinci_aemif_timing dm6467tevm_nandflash_timing = {

	.wsetup		= 29,

	.wstrobe	= 24,

	.whold		= 14,

	.rsetup		= 19,

	.rstrobe	= 33,

	.rhold		= 0,

	.ta		= 29,

};



static struct davinci_nand_pdata davinci_nand_data = {

	.mask_cle 		= 0x80000,

	.mask_ale 		= 0x40000,
@@ -763,6 +774,9 @@ static __init void evm_init(void) 
	dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);

	dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);



	if (machine_is_davinci_dm6467tevm())

		davinci_nand_data.timing = &dm6467tevm_nandflash_timing;



	platform_device_register(&davinci_nand_device);



	dm646x_init_edma(dm646x_edma_rsv);