diff options
Diffstat (limited to 'target/linux/bcm4908/patches-5.4/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch')
| -rw-r--r-- | target/linux/bcm4908/patches-5.4/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/target/linux/bcm4908/patches-5.4/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch b/target/linux/bcm4908/patches-5.4/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch deleted file mode 100644 index b0626ba71e..0000000000 --- a/target/linux/bcm4908/patches-5.4/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch +++ /dev/null @@ -1,152 +0,0 @@ -From a9349f08ec6c1251d41ef167d27a15cc39bc5b97 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> -Date: Fri, 12 Mar 2021 11:41:08 +0100 -Subject: [PATCH] net: dsa: bcm_sf2: setup BCM4908 internal crossbar -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -On some SoCs (e.g. BCM4908, BCM631[345]8) SF2 has an integrated -crossbar. It allows connecting its selected external ports to internal -ports. It's used by vendors to handle custom Ethernet setups. - -BCM4908 has following 3x2 crossbar. On Asus GT-AC5300 rgmii is used for -connecting external BCM53134S switch. GPHY4 is usually used for WAN -port. More fancy devices use SerDes for 2.5 Gbps Ethernet. - - ┌──────────┐ -SerDes ─── 0 ─┤ │ - │ 3x2 ├─ 0 ─── switch port 7 - GPHY4 ─── 1 ─┤ │ - │ crossbar ├─ 1 ─── runner (accelerator) - rgmii ─── 2 ─┤ │ - └──────────┘ - -Use setup data based on DT info to configure BCM4908's switch port 7. -Right now only GPHY and rgmii variants are supported. Handling SerDes -can be implemented later. - -Signed-off-by: Rafał Miłecki <rafal@milecki.pl> -Acked-by: Florian Fainelli <f.fainelli@gmail.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/dsa/bcm_sf2.c | 45 ++++++++++++++++++++++++++++++++++ - drivers/net/dsa/bcm_sf2.h | 1 + - drivers/net/dsa/bcm_sf2_regs.h | 7 ++++++ - 3 files changed, 53 insertions(+) - ---- a/drivers/net/dsa/bcm_sf2.c -+++ b/drivers/net/dsa/bcm_sf2.c -@@ -369,6 +369,44 @@ static int bcm_sf2_sw_rst(struct bcm_sf2 - return 0; - } - -+static void bcm_sf2_crossbar_setup(struct bcm_sf2_priv *priv) -+{ -+ struct device *dev = priv->dev->ds->dev; -+ int shift; -+ u32 mask; -+ u32 reg; -+ int i; -+ -+ mask = BIT(priv->num_crossbar_int_ports) - 1; -+ -+ reg = reg_readl(priv, REG_CROSSBAR); -+ switch (priv->type) { -+ case BCM4908_DEVICE_ID: -+ shift = CROSSBAR_BCM4908_INT_P7 * priv->num_crossbar_int_ports; -+ reg &= ~(mask << shift); -+ if (0) /* FIXME */ -+ reg |= CROSSBAR_BCM4908_EXT_SERDES << shift; -+ else if (priv->int_phy_mask & BIT(7)) -+ reg |= CROSSBAR_BCM4908_EXT_GPHY4 << shift; -+ else if (phy_interface_mode_is_rgmii(priv->port_sts[7].mode)) -+ reg |= CROSSBAR_BCM4908_EXT_RGMII << shift; -+ else if (WARN(1, "Invalid port mode\n")) -+ return; -+ break; -+ default: -+ return; -+ } -+ reg_writel(priv, reg, REG_CROSSBAR); -+ -+ reg = reg_readl(priv, REG_CROSSBAR); -+ for (i = 0; i < priv->num_crossbar_int_ports; i++) { -+ shift = i * priv->num_crossbar_int_ports; -+ -+ dev_dbg(dev, "crossbar int port #%d - ext port #%d\n", i, -+ (reg >> shift) & mask); -+ } -+} -+ - static void bcm_sf2_intr_disable(struct bcm_sf2_priv *priv) - { - intrl2_0_mask_set(priv, 0xffffffff); -@@ -734,6 +772,8 @@ static int bcm_sf2_sw_resume(struct dsa_ - return ret; - } - -+ bcm_sf2_crossbar_setup(priv); -+ - ret = bcm_sf2_cfp_resume(ds); - if (ret) - return ret; -@@ -996,6 +1036,7 @@ struct bcm_sf2_of_data { - const u16 *reg_offsets; - unsigned int core_reg_align; - unsigned int num_cfp_rules; -+ unsigned int num_crossbar_int_ports; - }; - - static const u16 bcm_sf2_4908_reg_offsets[] = { -@@ -1020,6 +1061,7 @@ static const struct bcm_sf2_of_data bcm_ - .core_reg_align = 0, - .reg_offsets = bcm_sf2_4908_reg_offsets, - .num_cfp_rules = 0, /* FIXME */ -+ .num_crossbar_int_ports = 2, - }; - - /* Register offsets for the SWITCH_REG_* block */ -@@ -1130,6 +1172,7 @@ static int bcm_sf2_sw_probe(struct platf - priv->reg_offsets = data->reg_offsets; - priv->core_reg_align = data->core_reg_align; - priv->num_cfp_rules = data->num_cfp_rules; -+ priv->num_crossbar_int_ports = data->num_crossbar_int_ports; - - /* Auto-detection using standard registers will not work, so - * provide an indication of what kind of device we are for -@@ -1184,6 +1227,8 @@ static int bcm_sf2_sw_probe(struct platf - return ret; - } - -+ bcm_sf2_crossbar_setup(priv); -+ - bcm_sf2_gphy_enable_set(priv->dev->ds, true); - - ret = bcm_sf2_mdio_register(ds); ---- a/drivers/net/dsa/bcm_sf2.h -+++ b/drivers/net/dsa/bcm_sf2.h -@@ -70,6 +70,7 @@ struct bcm_sf2_priv { - const u16 *reg_offsets; - unsigned int core_reg_align; - unsigned int num_cfp_rules; -+ unsigned int num_crossbar_int_ports; - - /* spinlock protecting access to the indirect registers */ - spinlock_t indir_lock; ---- a/drivers/net/dsa/bcm_sf2_regs.h -+++ b/drivers/net/dsa/bcm_sf2_regs.h -@@ -48,6 +48,13 @@ enum bcm_sf2_reg_offs { - #define PHY_PHYAD_SHIFT 8 - #define PHY_PHYAD_MASK 0x1F - -+/* Relative to REG_CROSSBAR */ -+#define CROSSBAR_BCM4908_INT_P7 0 -+#define CROSSBAR_BCM4908_INT_RUNNER 1 -+#define CROSSBAR_BCM4908_EXT_SERDES 0 -+#define CROSSBAR_BCM4908_EXT_GPHY4 1 -+#define CROSSBAR_BCM4908_EXT_RGMII 2 -+ - #define REG_RGMII_CNTRL_P(x) (REG_RGMII_0_CNTRL + (x)) - - /* Relative to REG_RGMII_CNTRL */ |