From e76d80579c2b5b4ecac107b83c22ceeb9e23bd1b Mon Sep 17 00:00:00 2001
From: Maciej Patelczyk <maciej.patelczyk@intel.com>
Date: Wed, 27 Apr 2011 17:50:50 +0000
Subject: [PATCH] isci: Implement SCU AFE recipe 10.
Updated SCU AFE initialization values accordingly to the recipe 10.
Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/scsi/isci/core/scic_sds_controller.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/isci/core/scic_sds_controller.c b/drivers/scsi/isci/core/scic_sds_controller.c
index c684d9ec8c97d..5e8dea57b5ef1 100644
--- a/drivers/scsi/isci/core/scic_sds_controller.c
+++ b/drivers/scsi/isci/core/scic_sds_controller.c
@@ -442,11 +442,20 @@ static void scic_sds_controller_afe_initialization(struct scic_sds_controller *s
writel(0x0081000f, &scic->scu_registers->afe.afe_dfx_master_control0);
udelay(AFE_REGISTER_WRITE_DELAY);
+ if (is_b0()) {
+ /* PM Rx Equalization Save, PM SPhy Rx Acknowledgement
+ * Timer, PM Stagger Timer */
+ writel(0x0007BFFF, &scic->scu_registers->afe.afe_pmsn_master_control2);
+ udelay(AFE_REGISTER_WRITE_DELAY);
+ }
+
/* Configure bias currents to normal */
if (is_a0())
writel(0x00005500, &scic->scu_registers->afe.afe_bias_control);
- else
+ else if (is_a2())
writel(0x00005A00, &scic->scu_registers->afe.afe_bias_control);
+ else if (is_b0())
+ writel(0x00005F00, &scic->scu_registers->afe.afe_bias_control);
udelay(AFE_REGISTER_WRITE_DELAY);
@@ -464,7 +473,7 @@ static void scic_sds_controller_afe_initialization(struct scic_sds_controller *s
udelay(AFE_REGISTER_WRITE_DELAY);
} while ((afe_status & 0x00001000) == 0);
- if (is_b0()) {
+ if (is_a0() || is_a2()) {
/* Shorten SAS SNW lock time (RxLock timer value from 76 us to 50 us) */
writel(0x7bcc96ad, &scic->scu_registers->afe.afe_pmsn_master_control0);
udelay(AFE_REGISTER_WRITE_DELAY);
--
2.30.2