diff options
Diffstat (limited to 'drivers/mtd/nand/lba/lba.h')
| -rw-r--r-- | drivers/mtd/nand/lba/lba.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/mtd/nand/lba/lba.h b/drivers/mtd/nand/lba/lba.h new file mode 100644 index 000000000000..4ad37ecbc44f --- /dev/null +++ b/drivers/mtd/nand/lba/lba.h @@ -0,0 +1,141 @@ +/* + * Freescale STMP37XX/STMP378X LBA interface + * + * Author: Dmitrij Frasenyak <sed@embeddedalley.com> + * + * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2009 Embedded Alley Solutions, Inc All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#ifndef __INCLUDE_LBA_H__ +#define __INCLUDE_LBA_H__ + + +#include <linux/spinlock.h> +#include <linux/kthread.h> +#include "gpmi.h" + +struct lba_cmd { + uint8_t len; +#define F_MASK 0x0f +#define F_ALE 0x01 +#define F_CMD 0x02 +#define F_DATA_READ 0x04 +#define F_DATA_WRITE 0x08 + +#define FE_W4R 0x10 +#define FE_CMD_INC 0x20 +#define FE_END 0x40 + + uint8_t flag; +}; + +#define LBA_P_READ_A 0 +#define LBA_P_READ_B 2 +#define LBA_P_READ_C 3 +#define LBA_P_WRITE_A 0 +#define LBA_P_WRITE_B 4 +#define LBA_T_SIZE1 1 +#define LBA_T_SIZE4 2 +#define LBA_T_SIZE8 4 +#define LBA_T_CRC (1 << 6) +#define LBA_T_ECC_CHECK (2 << 6) +#define LBA_T_ECC_CORRECT (3 << 6) + +struct lba_data { + void __iomem *io_base; + struct clk *clk; + int irq; + + spinlock_t lock; + int use_count; + int mode; + struct semaphore mode_lock; +#define LBA_MODE_MASK 0x0000ffff +#define LBA_FLAG_MASK 0xffff0000 +#define LBA_MODE_RST 0 +#define LBA_MODE_PNR 1 +#define LBA_MODE_BCM 2 +#define LBA_MODE_MDP 3 +#define LBA_MODE_VFP 4 +#define LBA_MODE_SUSP 5 +#define LBA_MODE_SELFPM 0x80000000 + wait_queue_head_t suspend_q; + wait_queue_head_t selfpm_q; + struct task_struct *thread; + long long last_access; + /* PNR specific */ + /* BCM specific */ + /* VFP specific */ + uint8_t pass[2]; + + /* Size of the partiotions: pages for PNP; sectors for others */ + unsigned int pnp_size; + unsigned int vfp_size; + long long mdp_size; + void *priv; + /*should be last*/ + struct gpmi_perchip_data nand[0]; + +}; + +extern struct lba_data *g_data; + +void stmp37cc_dma_print_chain(struct stmp37xx_circ_dma_chain *chain); + +int lba_blk_init(struct lba_data *data); +int lba_blk_remove(struct lba_data *data); +int lba_blk_suspend(struct platform_device *pdev, struct lba_data *data); +int lba_blk_resume(struct platform_device *pdev, struct lba_data *data); + + +int lba_core_init(struct lba_data *data); +int lba_core_remove(struct lba_data *data); +int lba_core_suspend(struct platform_device *pdev, struct lba_data *data); +int lba_core_resume(struct platform_device *pdev, struct lba_data *data); +int lba_core_lock_mode(struct lba_data *data, int mode); +int lba_core_unlock_mode(struct lba_data *data); + +int lba_write_sectors(void *priv, unsigned int sector, unsigned int count, + void *buffer, dma_addr_t handle); +int lba_read_sectors(void *priv, unsigned int sector, unsigned int count, + void *buffer, dma_addr_t handle); +void lba_protocol1_set(void *priv, uint8_t param); +uint8_t lba_protocol1_get(void *priv); +uint8_t lba_get_status1(void *priv); +uint8_t lba_get_status2(void *priv); + +uint8_t lba_get_id1(void *priv, uint8_t *ret_buffer); +uint8_t lba_get_id2(void *priv, uint8_t *); + + +int queue_cmd(void *priv, + uint8_t *cmd_buf, dma_addr_t cmd_handle, int cmd_len, + dma_addr_t data, int data_len, + struct lba_cmd *cmd_flags); + +int queue_run(void *priv); + +dma_addr_t queue_get_cmd_handle(void *priv); + +uint8_t *queue_get_cmd_ptr(void *priv); + +dma_addr_t queue_get_data_handle(void *priv); + +uint8_t *queue_get_data_ptr(void *priv); + +void queue_plug(struct lba_data *data); +void queue_release(struct lba_data *data); + + +#endif + |