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Diffstat (limited to 'drivers/ata/sata_fsl.c')
-rw-r--r--drivers/ata/sata_fsl.c56
1 files changed, 40 insertions, 16 deletions
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index b0214d00d50..0f91e583892 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -6,7 +6,7 @@
* Author: Ashish Kalra <ashish.kalra@freescale.com>
* Li Yang <leoli@freescale.com>
*
- * Copyright (c) 2006-2007 Freescale Semiconductor, Inc.
+ * Copyright (c) 2006-2007, 2011 Freescale Semiconductor, Inc.
*
* 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
@@ -33,8 +33,7 @@ enum {
SATA_FSL_MAX_PRD_USABLE = SATA_FSL_MAX_PRD - 1,
SATA_FSL_MAX_PRD_DIRECT = 16, /* Direct PRDT entries */
- SATA_FSL_HOST_FLAGS = (ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
- ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
+ SATA_FSL_HOST_FLAGS = (ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
ATA_FLAG_PMP | ATA_FLAG_NCQ | ATA_FLAG_AN),
SATA_FSL_MAX_CMDS = SATA_FSL_QUEUE_DEPTH,
@@ -158,7 +157,8 @@ enum {
IE_ON_SINGL_DEVICE_ERR | IE_ON_CMD_COMPLETE,
EXT_INDIRECT_SEG_PRD_FLAG = (1 << 31),
- DATA_SNOOP_ENABLE = (1 << 22),
+ DATA_SNOOP_ENABLE_V1 = (1 << 22),
+ DATA_SNOOP_ENABLE_V2 = (1 << 28),
};
/*
@@ -186,6 +186,11 @@ enum {
COMMANDSTAT = 0x20,
};
+/* TRANSCFG (transport-layer) configuration control */
+enum {
+ TRANSCFG_RX_WATER_MARK = (1 << 4),
+};
+
/* PHY (link-layer) configuration control */
enum {
PHY_BIST_ENABLE = 0x01,
@@ -256,6 +261,7 @@ struct sata_fsl_host_priv {
void __iomem *ssr_base;
void __iomem *csr_base;
int irq;
+ int data_snoop;
};
static inline unsigned int sata_fsl_tag(unsigned int tag,
@@ -308,7 +314,8 @@ static void sata_fsl_setup_cmd_hdr_entry(struct sata_fsl_port_priv *pp,
}
static unsigned int sata_fsl_fill_sg(struct ata_queued_cmd *qc, void *cmd_desc,
- u32 *ttl, dma_addr_t cmd_desc_paddr)
+ u32 *ttl, dma_addr_t cmd_desc_paddr,
+ int data_snoop)
{
struct scatterlist *sg;
unsigned int num_prde = 0;
@@ -358,8 +365,7 @@ static unsigned int sata_fsl_fill_sg(struct ata_queued_cmd *qc, void *cmd_desc,
ttl_dwords += sg_len;
prd->dba = cpu_to_le32(sg_addr);
- prd->ddc_and_ext =
- cpu_to_le32(DATA_SNOOP_ENABLE | (sg_len & ~0x03));
+ prd->ddc_and_ext = cpu_to_le32(data_snoop | (sg_len & ~0x03));
VPRINTK("sg_fill, ttl=%d, dba=0x%x, ddc=0x%x\n",
ttl_dwords, prd->dba, prd->ddc_and_ext);
@@ -374,7 +380,7 @@ static unsigned int sata_fsl_fill_sg(struct ata_queued_cmd *qc, void *cmd_desc,
/* set indirect extension flag along with indirect ext. size */
prd_ptr_to_indirect_ext->ddc_and_ext =
cpu_to_le32((EXT_INDIRECT_SEG_PRD_FLAG |
- DATA_SNOOP_ENABLE |
+ data_snoop |
(indirect_ext_segment_sz & ~0x03)));
}
@@ -417,7 +423,8 @@ static void sata_fsl_qc_prep(struct ata_queued_cmd *qc)
if (qc->flags & ATA_QCFLAG_DMAMAP)
num_prde = sata_fsl_fill_sg(qc, (void *)cd,
- &ttl_dwords, cd_paddr);
+ &ttl_dwords, cd_paddr,
+ host_priv->data_snoop);
if (qc->tf.protocol == ATA_PROT_NCQ)
desc_info |= FPDMA_QUEUED_CMD;
@@ -1040,12 +1047,15 @@ static void sata_fsl_error_intr(struct ata_port *ap)
/* find out the offending link and qc */
if (ap->nr_pmp_links) {
+ unsigned int dev_num;
+
dereg = ioread32(hcr_base + DE);
iowrite32(dereg, hcr_base + DE);
iowrite32(cereg, hcr_base + CE);
- if (dereg < ap->nr_pmp_links) {
- link = &ap->pmp_link[dereg];
+ dev_num = ffs(dereg) - 1;
+ if (dev_num < ap->nr_pmp_links && dereg != 0) {
+ link = &ap->pmp_link[dev_num];
ehi = &link->eh_info;
qc = ata_qc_from_tag(ap, link->active_tag);
/*
@@ -1293,8 +1303,7 @@ static const struct ata_port_info sata_fsl_port_info[] = {
},
};
-static int sata_fsl_probe(struct platform_device *ofdev,
- const struct of_device_id *match)
+static int sata_fsl_probe(struct platform_device *ofdev)
{
int retval = -ENXIO;
void __iomem *hcr_base = NULL;
@@ -1303,6 +1312,7 @@ static int sata_fsl_probe(struct platform_device *ofdev,
struct sata_fsl_host_priv *host_priv = NULL;
int irq;
struct ata_host *host;
+ u32 temp;
struct ata_port_info pi = sata_fsl_port_info[0];
const struct ata_port_info *ppi[] = { &pi, NULL };
@@ -1317,6 +1327,12 @@ static int sata_fsl_probe(struct platform_device *ofdev,
ssr_base = hcr_base + 0x100;
csr_base = hcr_base + 0x140;
+ if (!of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc8315-sata")) {
+ temp = ioread32(csr_base + TRANSCFG);
+ temp = temp & 0xffffffe0;
+ iowrite32(temp | TRANSCFG_RX_WATER_MARK, csr_base + TRANSCFG);
+ }
+
DPRINTK("@reset i/o = 0x%x\n", ioread32(csr_base + TRANSCFG));
DPRINTK("sizeof(cmd_desc) = %d\n", sizeof(struct command_desc));
DPRINTK("sizeof(#define cmd_desc) = %d\n", SATA_FSL_CMD_DESC_SIZE);
@@ -1336,6 +1352,11 @@ static int sata_fsl_probe(struct platform_device *ofdev,
}
host_priv->irq = irq;
+ if (of_device_is_compatible(ofdev->dev.of_node, "fsl,pq-sata-v2"))
+ host_priv->data_snoop = DATA_SNOOP_ENABLE_V2;
+ else
+ host_priv->data_snoop = DATA_SNOOP_ENABLE_V1;
+
/* allocate host structure */
host = ata_host_alloc_pinfo(&ofdev->dev, ppi, SATA_FSL_MAX_PORTS);
@@ -1418,12 +1439,15 @@ static struct of_device_id fsl_sata_match[] = {
{
.compatible = "fsl,pq-sata",
},
+ {
+ .compatible = "fsl,pq-sata-v2",
+ },
{},
};
MODULE_DEVICE_TABLE(of, fsl_sata_match);
-static struct of_platform_driver fsl_sata_driver = {
+static struct platform_driver fsl_sata_driver = {
.driver = {
.name = "fsl-sata",
.owner = THIS_MODULE,
@@ -1439,13 +1463,13 @@ static struct of_platform_driver fsl_sata_driver = {
static int __init sata_fsl_init(void)
{
- of_register_platform_driver(&fsl_sata_driver);
+ platform_driver_register(&fsl_sata_driver);
return 0;
}
static void __exit sata_fsl_exit(void)
{
- of_unregister_platform_driver(&fsl_sata_driver);
+ platform_driver_unregister(&fsl_sata_driver);
}
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 11:01:53 +0000