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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-18 06:31:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-18 06:31:43 -0700
commit0a95d92c0054e74fb79607ac2df958b7bf295706 (patch)
treee2c5f836e799dcfd72904949be47595af91432e7 /drivers/ata/sata_fsl.c
parent08351fc6a75731226e1112fc7254542bd3a2912e (diff)
parent831532035b12a5f7b600515a6f4da0b207b82d6e (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (62 commits) powerpc/85xx: Fix signedness bug in cache-sram powerpc/fsl: 85xx: document cache sram bindings powerpc/fsl: define binding for fsl mpic interrupt controllers powerpc/fsl_msi: Handle msi-available-ranges better drivers/serial/ucc_uart.c: Add of_node_put to avoid memory leak powerpc/85xx: Fix SPE float to integer conversion failure powerpc/85xx: Update sata controller compatible for p1022ds board ATA: Add FSL sata v2 controller support powerpc/mpc8xxx_gpio: simplify searching for 'fsl, qoriq-gpio' compatiable powerpc/8xx: remove obsolete mgsuvd board powerpc/82xx: rename and update mgcoge board support powerpc/83xx: rename and update kmeter1 powerpc/85xx: Workaroudn e500 CPU erratum A005 powerpc/fsl_pci: Add support for FSL PCIe controllers v2.x powerpc/85xx: Fix writing to spin table 'cpu-release-addr' on ppc64e powerpc/pseries: Disable MSI using new interface if possible powerpc: Enable GENERIC_HARDIRQS_NO_DEPRECATED. powerpc: core irq_data conversion. powerpc: sysdev/xilinx_intc irq_data conversion. powerpc: sysdev/uic irq_data conversion. ... Fix up conflicts in arch/powerpc/sysdev/fsl_msi.c (due to getting rid of of_platform_driver in arch/powerpc)
Diffstat (limited to 'drivers/ata/sata_fsl.c')
-rw-r--r--drivers/ata/sata_fsl.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index ef3ce26bb1f0..0f91e583892e 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
@@ -157,7 +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),
};
/*
@@ -260,6 +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,
@@ -312,7 +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;
@@ -362,8 +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);
@@ -378,7 +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)));
}
@@ -421,7 +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;
@@ -1349,6 +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);
@@ -1431,6 +1439,9 @@ static struct of_device_id fsl_sata_match[] = {
{
.compatible = "fsl,pq-sata",
},
+ {
+ .compatible = "fsl,pq-sata-v2",
+ },
{},
};