lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

powerpc/mpc5200: Add MDMA/UDMA support to MPC5200 ATA driver

Browse Source 
This patch adds MDMA/UDMA support using BestComm for DMA on the MPC5200
platform.  Based heavily on previous work by Freescale (Bernard Kuhn,
John Rigby) and Domen Puncer.

With this patch, a SanDisk Extreme IV CF card gets read speeds of
approximately 26.70 MB/sec.

Signed-off-by: Tim Yamin <plasm@roo.me.uk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Tim Yamin
2008-12-21 02:54:29 -07:00
committed by Grant Likely
parent aaab5e83c2
commit 6b61e69e7b
3 changed files with 488 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
arch/powerpc/sysdev/bestcomm/ata.h
View File

@ -20,18 +20,11 @@ struct bcom_ata_bd {
u32 dst_pa;
};
extern struct bcom_task *
bcom_ata_init(int queue_len, int maxbufsize);
extern void
bcom_ata_rx_prepare(struct bcom_task *tsk);
extern void
bcom_ata_tx_prepare(struct bcom_task *tsk);
extern void
bcom_ata_reset_bd(struct bcom_task *tsk);
extern struct bcom_task * bcom_ata_init(int queue_len, int maxbufsize);
extern void bcom_ata_rx_prepare(struct bcom_task *tsk);
extern void bcom_ata_tx_prepare(struct bcom_task *tsk);
extern void bcom_ata_reset_bd(struct bcom_task *tsk);
extern void bcom_ata_release(struct bcom_task *tsk);
#endif /* __BESTCOMM_ATA_H__ */