mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 08:05:12 +07:00
10f22ee367
The GPMC WAIT pin status are now available over gpiolib. Update the omap_dev_ready() function to use gpio instead of directly accessing GPMC register space. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Tony Lindgren <tony@atomide.com>
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/*
|
|
* Copyright (C) 2006 Micron Technology Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _MTD_NAND_OMAP2_H
|
|
#define _MTD_NAND_OMAP2_H
|
|
|
|
#include <linux/mtd/partitions.h>
|
|
|
|
#define GPMC_BCH_NUM_REMAINDER 8
|
|
|
|
enum nand_io {
|
|
NAND_OMAP_PREFETCH_POLLED = 0, /* prefetch polled mode, default */
|
|
NAND_OMAP_POLLED, /* polled mode, without prefetch */
|
|
NAND_OMAP_PREFETCH_DMA, /* prefetch enabled sDMA mode */
|
|
NAND_OMAP_PREFETCH_IRQ /* prefetch enabled irq mode */
|
|
};
|
|
|
|
enum omap_ecc {
|
|
/*
|
|
* 1-bit ECC: calculation and correction by SW
|
|
* ECC stored at end of spare area
|
|
*/
|
|
OMAP_ECC_HAM1_CODE_SW = 0,
|
|
|
|
/*
|
|
* 1-bit ECC: calculation by GPMC, Error detection by Software
|
|
* ECC layout compatible with ROM code layout
|
|
*/
|
|
OMAP_ECC_HAM1_CODE_HW,
|
|
/* 4-bit ECC calculation by GPMC, Error detection by Software */
|
|
OMAP_ECC_BCH4_CODE_HW_DETECTION_SW,
|
|
/* 4-bit ECC calculation by GPMC, Error detection by ELM */
|
|
OMAP_ECC_BCH4_CODE_HW,
|
|
/* 8-bit ECC calculation by GPMC, Error detection by Software */
|
|
OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
|
|
/* 8-bit ECC calculation by GPMC, Error detection by ELM */
|
|
OMAP_ECC_BCH8_CODE_HW,
|
|
/* 16-bit ECC calculation by GPMC, Error detection by ELM */
|
|
OMAP_ECC_BCH16_CODE_HW,
|
|
};
|
|
|
|
struct gpmc_nand_regs {
|
|
void __iomem *gpmc_nand_command;
|
|
void __iomem *gpmc_nand_address;
|
|
void __iomem *gpmc_nand_data;
|
|
void __iomem *gpmc_prefetch_config1;
|
|
void __iomem *gpmc_prefetch_config2;
|
|
void __iomem *gpmc_prefetch_control;
|
|
void __iomem *gpmc_prefetch_status;
|
|
void __iomem *gpmc_ecc_config;
|
|
void __iomem *gpmc_ecc_control;
|
|
void __iomem *gpmc_ecc_size_config;
|
|
void __iomem *gpmc_ecc1_result;
|
|
void __iomem *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER];
|
|
void __iomem *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER];
|
|
void __iomem *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER];
|
|
void __iomem *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER];
|
|
void __iomem *gpmc_bch_result4[GPMC_BCH_NUM_REMAINDER];
|
|
void __iomem *gpmc_bch_result5[GPMC_BCH_NUM_REMAINDER];
|
|
void __iomem *gpmc_bch_result6[GPMC_BCH_NUM_REMAINDER];
|
|
/* Deprecated. Do not use */
|
|
void __iomem *gpmc_status;
|
|
};
|
|
|
|
struct omap_nand_platform_data {
|
|
int cs;
|
|
struct mtd_partition *parts;
|
|
int nr_parts;
|
|
bool flash_bbt;
|
|
enum nand_io xfer_type;
|
|
int devsize;
|
|
enum omap_ecc ecc_opt;
|
|
|
|
struct device_node *elm_of_node;
|
|
|
|
/* deprecated */
|
|
struct gpmc_nand_regs reg;
|
|
struct device_node *of_node;
|
|
bool dev_ready;
|
|
};
|
|
#endif
|