Re: [PATCH v8 2/3] ahci_xgene: Skip the PHY and clock initialization if already configured by the firmware.
From: Sergei Shtylyov <hidden>
Date: 2014-08-23 18:43:57
Also in:
linux-arm-kernel, linux-ide, linux-scsi
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 <redacted> Signed-off-by: Suman Tripathi <redacted> --- drivers/ata/ahci_xgene.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
quoted hunk ↗ jump to hunk
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