Re: [PATCH v8 2/3] ahci_xgene: Skip the PHY and clock initialization if already configured by the firmware.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello.

On 08/23/2014 10:37 PM, Suman Tripathi wrote:

This patch implements the feature to skip the PHY and clock
initialization if it is already configured by the firmware.

Signed-off-by: Loc Ho <lho@xxxxxxx>
Signed-off-by: Suman Tripathi <stripathi@xxxxxxx>
---
  drivers/ata/ahci_xgene.c | 16 ++++++++++++++++
  1 file changed, 16 insertions(+)

diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index f416495..fd9c137 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -145,6 +145,15 @@ static unsigned int xgene_ahci_qc_issue(struct ata_queued_cmd *qc)
  	return rc;
  }

+static bool xgene_ahci_is_memram_inited(struct xgene_ahci_context *ctx)
+{
+	void __iomem *diagcsr = ctx->csr_diag;
+
+	return (readl(diagcsr + CFG_MEM_RAM_SHUTDOWN) == 0 &&
+	        readl(diagcsr + BLOCK_MEM_RDY) == 0xFFFFFFFF) ?
+		true : false;

   Just return the result of &&, that should be enough.

WBR, Sergei

--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux