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Commit 2c65e744 authored by Yegor Yefremov's avatar Yegor Yefremov Committed by Tony Lindgren
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GPMC: add ECC control definitions 



Signed-off-by: default avatarYegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent e953e305

arch/arm/mach-omap2/gpmc.c

+23 −7
Original line number Diff line number Diff line
@@ -50,6 +50,19 @@ 
#define GPMC_ECC_SIZE_CONFIG	0x1fc

#define GPMC_ECC1_RESULT        0x200



/* GPMC ECC control settings */

#define GPMC_ECC_CTRL_ECCCLEAR		0x100

#define GPMC_ECC_CTRL_ECCDISABLE	0x000

#define GPMC_ECC_CTRL_ECCREG1		0x001

#define GPMC_ECC_CTRL_ECCREG2		0x002

#define GPMC_ECC_CTRL_ECCREG3		0x003

#define GPMC_ECC_CTRL_ECCREG4		0x004

#define GPMC_ECC_CTRL_ECCREG5		0x005

#define GPMC_ECC_CTRL_ECCREG6		0x006

#define GPMC_ECC_CTRL_ECCREG7		0x007

#define GPMC_ECC_CTRL_ECCREG8		0x008

#define GPMC_ECC_CTRL_ECCREG9		0x009



#define GPMC_CS0_OFFSET		0x60

#define GPMC_CS_SIZE		0x30
@@ -861,8 +874,9 @@ int gpmc_enable_hwecc(int cs, int mode, int dev_width, int ecc_size) 
	gpmc_ecc_used = cs;



	/* clear ecc and enable bits */

	val = ((0x00000001<<8) | 0x00000001);

	gpmc_write_reg(GPMC_ECC_CONTROL, val);

	gpmc_write_reg(GPMC_ECC_CONTROL,

			GPMC_ECC_CTRL_ECCCLEAR |

			GPMC_ECC_CTRL_ECCREG1);



	/* program ecc and result sizes */

	val = ((((ecc_size >> 1) - 1) << 22) | (0x0000000F));
@@ -870,13 +884,15 @@ int gpmc_enable_hwecc(int cs, int mode, int dev_width, int ecc_size) 


	switch (mode) {

	case GPMC_ECC_READ:

		gpmc_write_reg(GPMC_ECC_CONTROL, 0x101);

	case GPMC_ECC_WRITE:

		gpmc_write_reg(GPMC_ECC_CONTROL,

				GPMC_ECC_CTRL_ECCCLEAR |

				GPMC_ECC_CTRL_ECCREG1);

		break;

	case GPMC_ECC_READSYN:

		 gpmc_write_reg(GPMC_ECC_CONTROL, 0x100);

		break;

	case GPMC_ECC_WRITE:

		gpmc_write_reg(GPMC_ECC_CONTROL, 0x101);

		gpmc_write_reg(GPMC_ECC_CONTROL,

				GPMC_ECC_CTRL_ECCCLEAR |

				GPMC_ECC_CTRL_ECCDISABLE);

		break;

	default:

		printk(KERN_INFO "Error: Unrecognized Mode[%d]!\n", mode);