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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-12 03:52:37 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-12 03:52:37 +0100 |
| commit | 4e8790f77f051d4cc745a57b48a73052521e8dfc (patch) | |
| tree | 092a3cb9d947140c5f0411c9cc3aa4db1a3e41a9 /drivers/ata/ahci_sunxi.c | |
| parent | Merge branch 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq (diff) | |
| parent | libata: Remove FIXME comment in atapi_request_sense() (diff) | |
| download | linux-4e8790f77f051d4cc745a57b48a73052521e8dfc.tar.xz linux-4e8790f77f051d4cc745a57b48a73052521e8dfc.zip | |
Merge branch 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata changes from Tejun Heo:
"The only interesting piece is the support for shingled drives. The
changes in libata layer are minimal. All it does is identifying the
new class of device and report upwards accordingly"
* 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: Remove FIXME comment in atapi_request_sense()
sata_rcar: Document deprecated "renesas,rcar-sata"
sata_rcar: Add clocks to sata_rcar bindings
ahci_sunxi: Make AHCI_HFLAG_NO_PMP flag configurable with a module option
libata-scsi: Update SATL for ZAC drives
libata: Implement ATA_DEV_ZAC
libsas: use ata_dev_classify()
Diffstat (limited to 'drivers/ata/ahci_sunxi.c')
| -rw-r--r-- | drivers/ata/ahci_sunxi.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c index e44d675a30ec..b5aedca5ea3c 100644 --- a/drivers/ata/ahci_sunxi.c +++ b/drivers/ata/ahci_sunxi.c @@ -27,6 +27,12 @@ #include <linux/regulator/consumer.h> #include "ahci.h" +/* Insmod parameters */ +static bool enable_pmp; +module_param(enable_pmp, bool, 0); +MODULE_PARM_DESC(enable_pmp, + "Enable support for sata port multipliers, only use if you use a pmp!"); + #define AHCI_BISTAFR 0x00a0 #define AHCI_BISTCR 0x00a4 #define AHCI_BISTFCTR 0x00a8 @@ -184,7 +190,15 @@ static int ahci_sunxi_probe(struct platform_device *pdev) goto disable_resources; hpriv->flags = AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_MSI | - AHCI_HFLAG_NO_PMP | AHCI_HFLAG_YES_NCQ; + AHCI_HFLAG_YES_NCQ; + + /* + * The sunxi sata controller seems to be unable to successfully do a + * soft reset if no pmp is attached, so disable pmp use unless + * requested, otherwise directly attached disks do not work. + */ + if (!enable_pmp) + hpriv->flags |= AHCI_HFLAG_NO_PMP; rc = ahci_platform_init_host(pdev, hpriv, &ahci_sunxi_port_info); if (rc) |