7ace30aeb6
Backport upstream code split patch for qca8k needed for ipq40xx target to correctly implement a DSA driver. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
138 lines
3.7 KiB
Diff
138 lines
3.7 KiB
Diff
From fce1ec0c4e2d03d9c62ffc615a42bdba78eb4c14 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Wed, 27 Jul 2022 13:35:15 +0200
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Subject: [PATCH 06/14] net: dsa: qca8k: move mib init function to common code
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The same mib function is used by drivers based on qca8k family switch.
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Move it to common code to make it accessible also by other drivers.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/dsa/qca/qca8k-8xxx.c | 37 ------------------------------
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drivers/net/dsa/qca/qca8k-common.c | 35 ++++++++++++++++++++++++++++
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drivers/net/dsa/qca/qca8k.h | 4 ++++
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3 files changed, 39 insertions(+), 37 deletions(-)
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--- a/drivers/net/dsa/qca/qca8k-8xxx.c
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+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
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@@ -442,15 +442,6 @@ static struct regmap_config qca8k_regmap
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};
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static int
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-qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
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-{
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- u32 val;
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-
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- return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
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- QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
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-}
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-
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-static int
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qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
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{
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u32 reg[3];
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@@ -777,34 +768,6 @@ out:
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return ret;
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}
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-static int
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-qca8k_mib_init(struct qca8k_priv *priv)
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-{
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- int ret;
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-
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- mutex_lock(&priv->reg_mutex);
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- ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
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- QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
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- FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
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- QCA8K_MIB_BUSY);
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- if (ret)
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- goto exit;
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-
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- ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
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- if (ret)
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- goto exit;
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-
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- ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
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- if (ret)
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- goto exit;
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-
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- ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
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-
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-exit:
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- mutex_unlock(&priv->reg_mutex);
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- return ret;
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-}
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-
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static void
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qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
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{
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--- a/drivers/net/dsa/qca/qca8k-common.c
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+++ b/drivers/net/dsa/qca/qca8k-common.c
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@@ -7,6 +7,7 @@
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*/
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#include <linux/netdevice.h>
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+#include <linux/bitfield.h>
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#include <net/dsa.h>
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#include "qca8k.h"
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@@ -138,3 +139,38 @@ int qca8k_bulk_write(struct qca8k_priv *
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return 0;
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}
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+
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+int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
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+{
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+ u32 val;
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+
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+ return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
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+ QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
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+}
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+
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+int qca8k_mib_init(struct qca8k_priv *priv)
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+{
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+ int ret;
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+
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+ mutex_lock(&priv->reg_mutex);
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+ ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
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+ QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
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+ FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
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+ QCA8K_MIB_BUSY);
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+ if (ret)
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+ goto exit;
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+
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+ ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
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+ if (ret)
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+ goto exit;
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+
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+ ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
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+ if (ret)
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+ goto exit;
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+
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+ ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
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+
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+exit:
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+ mutex_unlock(&priv->reg_mutex);
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+ return ret;
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+}
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--- a/drivers/net/dsa/qca/qca8k.h
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+++ b/drivers/net/dsa/qca/qca8k.h
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@@ -422,6 +422,7 @@ struct qca8k_fdb {
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/* Common setup function */
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extern const struct qca8k_mib_desc ar8327_mib[];
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extern const struct regmap_access_table qca8k_readable_table;
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+int qca8k_mib_init(struct qca8k_priv *priv);
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/* Common read/write/rmw function */
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int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);
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@@ -431,4 +432,7 @@ int qca8k_rmw(struct qca8k_priv *priv, u
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int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
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int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
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+/* Common ops function */
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+int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask);
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+
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#endif /* __QCA8K_H */
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