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memory: pl353: Add driver for arm pl353 static memory controller

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Add driver for arm pl353 static memory controller. This controller is used in
Xilinx Zynq SoC for interfacing the NAND and NOR/SRAM memory devices.

Signed-off-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Naga Sureshkumar Relli
2018-12-06 18:17:34 +05:30
committed by Michal Simek
parent b0b41af12a
commit fee10bd226
4 changed files with 503 additions and 0 deletions
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30
include/linux/pl353-smc.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* ARM PL353 SMC Driver Header
*
* Copyright (C) 2012 - 2018 Xilinx, Inc
*/
#ifndef __LINUX_PL353_SMC_H
#define __LINUX_PL353_SMC_H
enum pl353_smc_ecc_mode {
PL353_SMC_ECCMODE_BYPASS = 0,
PL353_SMC_ECCMODE_APB = 1,
PL353_SMC_ECCMODE_MEM = 2
};
enum pl353_smc_mem_width {
PL353_SMC_MEM_WIDTH_8 = 0,
PL353_SMC_MEM_WIDTH_16 = 1
};
u32 pl353_smc_get_ecc_val(int ecc_reg);
bool pl353_smc_ecc_is_busy(void);
int pl353_smc_get_nand_int_status_raw(void);
void pl353_smc_clr_nand_int(void);
int pl353_smc_set_ecc_mode(enum pl353_smc_ecc_mode mode);
int pl353_smc_set_ecc_pg_size(unsigned int pg_sz);
int pl353_smc_set_buswidth(unsigned int bw);
void pl353_smc_set_cycles(u32 timings[]);
#endif