sata_rcar: correct 'sata_rcar_sht'
Using ATA_BMDMA_SHT() to intialize 'sata_rcar_sht' was suboptimal as the R-Car descriptor table transfer counter is 28 bits wide (bit 1 to bit 28), so that the 'dma_boundary' field of 0xFFFF is just too small, as well as the 'sg_tablesize' field of 128. Use ATA_BASE_SHT() to initialize 'sata_rcar_sht' instead and give proper values to the 'dma_boundary' and 'sg_tablesize' fields explicitly. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
parent
333279c82b
commit
8bfbeed586
1 changed files with 10 additions and 1 deletions
|
@ -121,6 +121,8 @@
|
|||
/* Descriptor table word 0 bit (when DTA32M = 1) */
|
||||
#define SATA_RCAR_DTEND BIT(0)
|
||||
|
||||
#define SATA_RCAR_DMA_BOUNDARY 0x1FFFFFFEUL
|
||||
|
||||
struct sata_rcar_priv {
|
||||
void __iomem *base;
|
||||
struct clk *clk;
|
||||
|
@ -575,7 +577,14 @@ static u8 sata_rcar_bmdma_status(struct ata_port *ap)
|
|||
}
|
||||
|
||||
static struct scsi_host_template sata_rcar_sht = {
|
||||
ATA_BMDMA_SHT(DRV_NAME),
|
||||
ATA_BASE_SHT(DRV_NAME),
|
||||
/*
|
||||
* This controller allows transfer chunks up to 512MB which cross 64KB
|
||||
* boundaries, therefore the DMA limits are more relaxed than standard
|
||||
* ATA SFF.
|
||||
*/
|
||||
.sg_tablesize = ATA_MAX_PRD,
|
||||
.dma_boundary = SATA_RCAR_DMA_BOUNDARY,
|
||||
};
|
||||
|
||||
static struct ata_port_operations sata_rcar_port_ops = {
|
||||
|
|
Loading…
Reference in a new issue