From 462a088c474832b19ff2730de1e6bea66d399c23 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= Date: Sat, 15 Oct 2022 23:01:29 +0200 Subject: Add Turris kernel (includes patches from OpenWrt) --- ...-qca8k-initial-conversion-to-regmap-heper.patch | 249 +++++++++++++++++++++ 1 file changed, 249 insertions(+) create mode 100644 pkgs/patches-linux-5.15/757-net-next-net-dsa-qca8k-initial-conversion-to-regmap-heper.patch (limited to 'pkgs/patches-linux-5.15/757-net-next-net-dsa-qca8k-initial-conversion-to-regmap-heper.patch') diff --git a/pkgs/patches-linux-5.15/757-net-next-net-dsa-qca8k-initial-conversion-to-regmap-heper.patch b/pkgs/patches-linux-5.15/757-net-next-net-dsa-qca8k-initial-conversion-to-regmap-heper.patch new file mode 100644 index 0000000..4ca9c8b --- /dev/null +++ b/pkgs/patches-linux-5.15/757-net-next-net-dsa-qca8k-initial-conversion-to-regmap-heper.patch @@ -0,0 +1,249 @@ +From 8b5f3f29a81a71934d004e21a1292c1148b05926 Mon Sep 17 00:00:00 2001 +From: Ansuel Smith +Date: Mon, 22 Nov 2021 16:23:44 +0100 +Subject: net: dsa: qca8k: initial conversion to regmap helper + +Convert any qca8k set/clear/pool to regmap helper and add +missing config to regmap_config struct. +Read/write/rmw operation are reworked to use the regmap helper +internally to keep the delta of this patch low. These additional +function will then be dropped when the code split will be proposed. + +Ipq40xx SoC have the internal switch based on the qca8k regmap but use +mmio for read/write/rmw operation instead of mdio. +In preparation for the support of this internal switch, convert the +driver to regmap API to later split the driver to common and specific +code. The overhead introduced by the use of regamp API is marginal as the +internal mdio will bypass it by using its direct access and regmap will be +used only by configuration functions or fdb access. + +Signed-off-by: Ansuel Smith +Signed-off-by: David S. Miller +--- + drivers/net/dsa/qca8k.c | 107 +++++++++++++++++++++--------------------------- + 1 file changed, 47 insertions(+), 60 deletions(-) + +--- a/drivers/net/dsa/qca8k.c ++++ b/drivers/net/dsa/qca8k.c +@@ -10,6 +10,7 @@ + #include + #include + #include ++#include + #include + #include + #include +@@ -152,6 +153,25 @@ qca8k_set_page(struct mii_bus *bus, u16 + static int + qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val) + { ++ return regmap_read(priv->regmap, reg, val); ++} ++ ++static int ++qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val) ++{ ++ return regmap_write(priv->regmap, reg, val); ++} ++ ++static int ++qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val) ++{ ++ return regmap_update_bits(priv->regmap, reg, mask, write_val); ++} ++ ++static int ++qca8k_regmap_read(void *ctx, uint32_t reg, uint32_t *val) ++{ ++ struct qca8k_priv *priv = (struct qca8k_priv *)ctx; + struct mii_bus *bus = priv->bus; + u16 r1, r2, page; + int ret; +@@ -172,8 +192,9 @@ exit: + } + + static int +-qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val) ++qca8k_regmap_write(void *ctx, uint32_t reg, uint32_t val) + { ++ struct qca8k_priv *priv = (struct qca8k_priv *)ctx; + struct mii_bus *bus = priv->bus; + u16 r1, r2, page; + int ret; +@@ -194,8 +215,9 @@ exit: + } + + static int +-qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val) ++qca8k_regmap_update_bits(void *ctx, uint32_t reg, uint32_t mask, uint32_t write_val) + { ++ struct qca8k_priv *priv = (struct qca8k_priv *)ctx; + struct mii_bus *bus = priv->bus; + u16 r1, r2, page; + u32 val; +@@ -223,34 +245,6 @@ exit: + return ret; + } + +-static int +-qca8k_reg_set(struct qca8k_priv *priv, u32 reg, u32 val) +-{ +- return qca8k_rmw(priv, reg, 0, val); +-} +- +-static int +-qca8k_reg_clear(struct qca8k_priv *priv, u32 reg, u32 val) +-{ +- return qca8k_rmw(priv, reg, val, 0); +-} +- +-static int +-qca8k_regmap_read(void *ctx, uint32_t reg, uint32_t *val) +-{ +- struct qca8k_priv *priv = (struct qca8k_priv *)ctx; +- +- return qca8k_read(priv, reg, val); +-} +- +-static int +-qca8k_regmap_write(void *ctx, uint32_t reg, uint32_t val) +-{ +- struct qca8k_priv *priv = (struct qca8k_priv *)ctx; +- +- return qca8k_write(priv, reg, val); +-} +- + static const struct regmap_range qca8k_readable_ranges[] = { + regmap_reg_range(0x0000, 0x00e4), /* Global control */ + regmap_reg_range(0x0100, 0x0168), /* EEE control */ +@@ -282,26 +276,19 @@ static struct regmap_config qca8k_regmap + .max_register = 0x16ac, /* end MIB - Port6 range */ + .reg_read = qca8k_regmap_read, + .reg_write = qca8k_regmap_write, ++ .reg_update_bits = qca8k_regmap_update_bits, + .rd_table = &qca8k_readable_table, ++ .disable_locking = true, /* Locking is handled by qca8k read/write */ ++ .cache_type = REGCACHE_NONE, /* Explicitly disable CACHE */ + }; + + static int + qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask) + { +- int ret, ret1; + u32 val; + +- ret = read_poll_timeout(qca8k_read, ret1, !(val & mask), +- 0, QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC, false, +- priv, reg, &val); +- +- /* Check if qca8k_read has failed for a different reason +- * before returning -ETIMEDOUT +- */ +- if (ret < 0 && ret1 < 0) +- return ret1; +- +- return ret; ++ return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0, ++ QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC); + } + + static int +@@ -568,7 +555,7 @@ qca8k_mib_init(struct qca8k_priv *priv) + int ret; + + mutex_lock(&priv->reg_mutex); +- ret = qca8k_reg_set(priv, QCA8K_REG_MIB, QCA8K_MIB_FLUSH | QCA8K_MIB_BUSY); ++ ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_FLUSH | QCA8K_MIB_BUSY); + if (ret) + goto exit; + +@@ -576,7 +563,7 @@ qca8k_mib_init(struct qca8k_priv *priv) + if (ret) + goto exit; + +- ret = qca8k_reg_set(priv, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP); ++ ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP); + if (ret) + goto exit; + +@@ -597,9 +584,9 @@ qca8k_port_set_status(struct qca8k_priv + mask |= QCA8K_PORT_STATUS_LINK_AUTO; + + if (enable) +- qca8k_reg_set(priv, QCA8K_REG_PORT_STATUS(port), mask); ++ regmap_set_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask); + else +- qca8k_reg_clear(priv, QCA8K_REG_PORT_STATUS(port), mask); ++ regmap_clear_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask); + } + + static u32 +@@ -861,8 +848,8 @@ qca8k_setup_mdio_bus(struct qca8k_priv * + * a dt-overlay and driver reload changed the configuration + */ + +- return qca8k_reg_clear(priv, QCA8K_MDIO_MASTER_CTRL, +- QCA8K_MDIO_MASTER_EN); ++ return regmap_clear_bits(priv->regmap, QCA8K_MDIO_MASTER_CTRL, ++ QCA8K_MDIO_MASTER_EN); + } + + /* Check if the devicetree declare the port:phy mapping */ +@@ -1099,16 +1086,16 @@ qca8k_setup(struct dsa_switch *ds) + return ret; + + /* Make sure MAC06 is disabled */ +- ret = qca8k_reg_clear(priv, QCA8K_REG_PORT0_PAD_CTRL, +- QCA8K_PORT0_PAD_MAC06_EXCHANGE_EN); ++ ret = regmap_clear_bits(priv->regmap, QCA8K_REG_PORT0_PAD_CTRL, ++ QCA8K_PORT0_PAD_MAC06_EXCHANGE_EN); + if (ret) { + dev_err(priv->dev, "failed disabling MAC06 exchange"); + return ret; + } + + /* Enable CPU Port */ +- ret = qca8k_reg_set(priv, QCA8K_REG_GLOBAL_FW_CTRL0, +- QCA8K_GLOBAL_FW_CTRL0_CPU_PORT_EN); ++ ret = regmap_set_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, ++ QCA8K_GLOBAL_FW_CTRL0_CPU_PORT_EN); + if (ret) { + dev_err(priv->dev, "failed enabling CPU port"); + return ret; +@@ -1176,8 +1163,8 @@ qca8k_setup(struct dsa_switch *ds) + return ret; + + /* Enable ARP Auto-learning by default */ +- ret = qca8k_reg_set(priv, QCA8K_PORT_LOOKUP_CTRL(i), +- QCA8K_PORT_LOOKUP_LEARN); ++ ret = regmap_set_bits(priv->regmap, QCA8K_PORT_LOOKUP_CTRL(i), ++ QCA8K_PORT_LOOKUP_LEARN); + if (ret) + return ret; + +@@ -1745,9 +1732,9 @@ qca8k_port_bridge_join(struct dsa_switch + /* Add this port to the portvlan mask of the other ports + * in the bridge + */ +- ret = qca8k_reg_set(priv, +- QCA8K_PORT_LOOKUP_CTRL(i), +- BIT(port)); ++ ret = regmap_set_bits(priv->regmap, ++ QCA8K_PORT_LOOKUP_CTRL(i), ++ BIT(port)); + if (ret) + return ret; + if (i != port) +@@ -1777,9 +1764,9 @@ qca8k_port_bridge_leave(struct dsa_switc + /* Remove this port to the portvlan mask of the other ports + * in the bridge + */ +- qca8k_reg_clear(priv, +- QCA8K_PORT_LOOKUP_CTRL(i), +- BIT(port)); ++ regmap_clear_bits(priv->regmap, ++ QCA8K_PORT_LOOKUP_CTRL(i), ++ BIT(port)); + } + + /* Set the cpu port to be the only one in the portvlan mask of -- cgit v1.2.3