dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 08:42:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

scsi: Add dma direction member to command structure

Browse Source 
Some SCSI devices like UFS use DMA for executing scsi commands and hence
need to know the direction of transfer of the dma. Add a dma_dir element
to the command structure to facilitate this.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
This commit is contained in:
Faiz Abbas
2019-10-15 18:24:35 +05:30
committed by Tom Rini
parent d48f00ed11
commit 8fbac8e23e
2 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/scsi/scsi.c
View File

@@ -169,6 +169,7 @@ static ulong scsi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
block_dev->devnum, start, blks, (unsigned long)buffer);
do {
pccb->pdata = (unsigned char *)buf_addr;
pccb->dma_dir = DMA_FROM_DEVICE;
#ifdef CONFIG_SYS_64BIT_LBA
if (start > SCSI_LBA48_READ) {
unsigned long blocks;
@@ -237,6 +238,7 @@ static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
__func__, block_dev->devnum, start, blks, (unsigned long)buffer);
do {
pccb->pdata = (unsigned char *)buf_addr;
pccb->dma_dir = DMA_TO_DEVICE;
if (blks > max_blks) {
pccb->datalen = block_dev->blksz * max_blks;
smallblks = max_blks;
@@ -385,6 +387,7 @@ static int scsi_read_capacity(struct udevice *dev, struct scsi_cmd *pccb,
pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
pccb->datalen = 16;
pccb->dma_dir = DMA_FROM_DEVICE;
if (scsi_exec(dev, pccb))
return 1;
@@ -487,6 +490,7 @@ static int scsi_detect_dev(struct udevice *dev, int target, int lun,
pccb->lun = lun;
pccb->pdata = (unsigned char *)&tempbuff;
pccb->datalen = 512;
pccb->dma_dir = DMA_FROM_DEVICE;
scsi_setup_inquiry(pccb);
if (scsi_exec(dev, pccb)) {
if (pccb->contr_stat == SCSI_SEL_TIME_OUT) {