+++ /dev/null
-/***************************************************************************
- * Copyright (C) 2009 by Marvell Semiconductors, Inc. *
- * Written by Nicolas Pitre <nico at marvell.com> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-
-/*
- * NAND controller interface for Marvell Orion/Kirkwood SoCs.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "arm_nandio.h"
-#include "armv4_5.h"
-
-
-struct orion_nand_controller
-{
- struct target *target;
-
- struct arm_nand_data io;
-
- uint32_t cmd;
- uint32_t addr;
- uint32_t data;
-};
-
-#define CHECK_HALTED \
- do { \
- if (target->state != TARGET_HALTED) { \
- LOG_ERROR("NAND flash access requires halted target"); \
- return ERROR_NAND_OPERATION_FAILED; \
- } \
- } while (0)
-
-static int orion_nand_command(struct nand_device *nand, uint8_t command)
-{
- struct orion_nand_controller *hw = nand->controller_priv;
- struct target *target = hw->target;
-
- CHECK_HALTED;
- target_write_u8(target, hw->cmd, command);
- return ERROR_OK;
-}
-
-static int orion_nand_address(struct nand_device *nand, uint8_t address)
-{
- struct orion_nand_controller *hw = nand->controller_priv;
- struct target *target = hw->target;
-
- CHECK_HALTED;
- target_write_u8(target, hw->addr, address);
- return ERROR_OK;
-}
-
-static int orion_nand_read(struct nand_device *nand, void *data)
-{
- struct orion_nand_controller *hw = nand->controller_priv;
- struct target *target = hw->target;
-
- CHECK_HALTED;
- target_read_u8(target, hw->data, data);
- return ERROR_OK;
-}
-
-static int orion_nand_write(struct nand_device *nand, uint16_t data)
-{
- struct orion_nand_controller *hw = nand->controller_priv;
- struct target *target = hw->target;
-
- CHECK_HALTED;
- target_write_u8(target, hw->data, data);
- return ERROR_OK;
-}
-
-static int orion_nand_slow_block_write(struct nand_device *nand, uint8_t *data, int size)
-{
- while (size--)
- orion_nand_write(nand, *data++);
- return ERROR_OK;
-}
-
-static int orion_nand_fast_block_write(struct nand_device *nand, uint8_t *data, int size)
-{
- struct orion_nand_controller *hw = nand->controller_priv;
- int retval;
-
- hw->io.chunk_size = nand->page_size;
-
- retval = arm_nandwrite(&hw->io, data, size);
- if (retval == ERROR_NAND_NO_BUFFER)
- retval = orion_nand_slow_block_write(nand, data, size);
-
- return retval;
-}
-
-static int orion_nand_reset(struct nand_device *nand)
-{
- return orion_nand_command(nand, NAND_CMD_RESET);
-}
-
-static int orion_nand_controller_ready(struct nand_device *nand, int timeout)
-{
- return 1;
-}
-
-NAND_DEVICE_COMMAND_HANDLER(orion_nand_device_command)
-{
- struct orion_nand_controller *hw;
- uint32_t base;
- uint8_t ale, cle;
-
- if (CMD_ARGC != 3) {
- LOG_ERROR("arguments must be: <target_id> <NAND_address>\n");
- return ERROR_NAND_DEVICE_INVALID;
- }
-
- hw = calloc(1, sizeof(*hw));
- if (!hw) {
- LOG_ERROR("no memory for nand controller\n");
- return ERROR_NAND_DEVICE_INVALID;
- }
-
- nand->controller_priv = hw;
- hw->target = get_target(CMD_ARGV[1]);
- if (!hw->target) {
- LOG_ERROR("target '%s' not defined", CMD_ARGV[1]);
- free(hw);
- return ERROR_NAND_DEVICE_INVALID;
- }
-
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], base);
- cle = 0;
- ale = 1;
-
- hw->data = base;
- hw->cmd = base + (1 << cle);
- hw->addr = base + (1 << ale);
-
- hw->io.target = hw->target;
- hw->io.data = hw->data;
-
- return ERROR_OK;
-}
-
-static int orion_nand_init(struct nand_device *nand)
-{
- return ERROR_OK;
-}
-
-struct nand_flash_controller orion_nand_controller =
-{
- .name = "orion",
- .command = orion_nand_command,
- .address = orion_nand_address,
- .read_data = orion_nand_read,
- .write_data = orion_nand_write,
- .write_block_data = orion_nand_fast_block_write,
- .reset = orion_nand_reset,
- .controller_ready = orion_nand_controller_ready,
- .nand_device_command = orion_nand_device_command,
- .init = orion_nand_init,
-};
-
projects / fw / openocd / blobdiff