lkml.org 
[lkml]   [2019]   [Oct]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 10/13] phy: cadence: Sierra: Change MAX_LANES of Sierra to 16
Date
Sierra SERDES IP supports upto 16 lanes (though not all of it
will be enabled in a platform). Allow Sierra driver to support a
maximum of upto 16 lanes.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/phy/cadence/phy-cadence-sierra.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 82f7617b2dac..dd54a0ab89b7 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -139,7 +139,7 @@
#define SIERRA_PHY_PLL_CFG 0xe

#define SIERRA_MACRO_ID 0x00007364
-#define SIERRA_MAX_LANES 4
+#define SIERRA_MAX_LANES 16
#define PLL_LOCK_TIME 100000

static const struct reg_field macro_id_type =
@@ -197,6 +197,7 @@ struct cdns_sierra_phy {
struct regmap_field *pllctrl_lock[SIERRA_MAX_LANES];
struct clk *clk;
int nsubnodes;
+ u32 num_lanes;
bool autoconf;
};

@@ -233,6 +234,18 @@ static struct regmap_config cdns_sierra_lane_cdb_config[] = {
SIERRA_LANE_CDB_REGMAP_CONF("1"),
SIERRA_LANE_CDB_REGMAP_CONF("2"),
SIERRA_LANE_CDB_REGMAP_CONF("3"),
+ SIERRA_LANE_CDB_REGMAP_CONF("4"),
+ SIERRA_LANE_CDB_REGMAP_CONF("5"),
+ SIERRA_LANE_CDB_REGMAP_CONF("6"),
+ SIERRA_LANE_CDB_REGMAP_CONF("7"),
+ SIERRA_LANE_CDB_REGMAP_CONF("8"),
+ SIERRA_LANE_CDB_REGMAP_CONF("9"),
+ SIERRA_LANE_CDB_REGMAP_CONF("10"),
+ SIERRA_LANE_CDB_REGMAP_CONF("11"),
+ SIERRA_LANE_CDB_REGMAP_CONF("12"),
+ SIERRA_LANE_CDB_REGMAP_CONF("13"),
+ SIERRA_LANE_CDB_REGMAP_CONF("14"),
+ SIERRA_LANE_CDB_REGMAP_CONF("15"),
};

static struct regmap_config cdns_sierra_common_cdb_config = {
@@ -546,6 +559,8 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
}
}

+ sp->num_lanes += sp->phys[node].num_lanes;
+
gphy = devm_phy_create(dev, child, &ops);

if (IS_ERR(gphy)) {
@@ -559,6 +574,11 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
}
sp->nsubnodes = node;

+ if (sp->num_lanes > SIERRA_MAX_LANES) {
+ dev_err(dev, "Invalid lane configuration\n");
+ goto put_child2;
+ }
+
/* If more than one subnode, configure the PHY as multilink */
if (!sp->autoconf && sp->nsubnodes > 1)
regmap_field_write(sp->phy_pll_cfg_1, 0x1);
--
2.17.1
\
 
 \ /
  Last update: 2019-10-16 13:33    [W:0.092 / U:4.772 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site