diff options
Diffstat (limited to 'target/linux/bcm4908/patches-5.4/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch')
| -rw-r--r-- | target/linux/bcm4908/patches-5.4/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/target/linux/bcm4908/patches-5.4/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch b/target/linux/bcm4908/patches-5.4/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch deleted file mode 100644 index c46fd1d3b5..0000000000 --- a/target/linux/bcm4908/patches-5.4/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch +++ /dev/null @@ -1,127 +0,0 @@ -From 55cfeb396965c3906a84d09a9c487d065e37773b Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> -Date: Thu, 18 Mar 2021 09:01:42 +0100 -Subject: [PATCH 1/2] net: dsa: bcm_sf2: add function finding RGMII register -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Simple macro like REG_RGMII_CNTRL_P() is insufficient as: -1. It doesn't validate port argument -2. It doesn't support chipsets with non-lineral RGMII regs layout - -Missing port validation could result in getting register offset from out -of array. Random memory -> random offset -> random reads/writes. It -affected e.g. BCM4908 for REG_RGMII_CNTRL_P(7). - -Fixes: a78e86ed586d ("net: dsa: bcm_sf2: Prepare for different register layouts") -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 | 49 +++++++++++++++++++++++++++++----- - drivers/net/dsa/bcm_sf2_regs.h | 2 -- - 2 files changed, 42 insertions(+), 9 deletions(-) - ---- a/drivers/net/dsa/bcm_sf2.c -+++ b/drivers/net/dsa/bcm_sf2.c -@@ -31,6 +31,31 @@ - #include "b53/b53_priv.h" - #include "b53/b53_regs.h" - -+static u16 bcm_sf2_reg_rgmii_cntrl(struct bcm_sf2_priv *priv, int port) -+{ -+ switch (priv->type) { -+ case BCM4908_DEVICE_ID: -+ /* TODO */ -+ break; -+ default: -+ switch (port) { -+ case 0: -+ return REG_RGMII_0_CNTRL; -+ case 1: -+ return REG_RGMII_1_CNTRL; -+ case 2: -+ return REG_RGMII_2_CNTRL; -+ default: -+ break; -+ } -+ } -+ -+ WARN_ONCE(1, "Unsupported port %d\n", port); -+ -+ /* RO fallback reg */ -+ return REG_SWITCH_STATUS; -+} -+ - static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port) - { - struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); -@@ -588,6 +613,7 @@ static void bcm_sf2_sw_mac_config(struct - { - struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); - u32 id_mode_dis = 0, port_mode; -+ u32 reg_rgmii_ctrl; - u32 reg, offset; - - if (port == core_readl(priv, CORE_IMP0_PRT_ID)) -@@ -617,10 +643,12 @@ static void bcm_sf2_sw_mac_config(struct - goto force_link; - } - -+ reg_rgmii_ctrl = bcm_sf2_reg_rgmii_cntrl(priv, port); -+ - /* Clear id_mode_dis bit, and the existing port mode, let - * RGMII_MODE_EN bet set by mac_link_{up,down} - */ -- reg = reg_readl(priv, REG_RGMII_CNTRL_P(port)); -+ reg = reg_readl(priv, reg_rgmii_ctrl); - reg &= ~ID_MODE_DIS; - reg &= ~(PORT_MODE_MASK << PORT_MODE_SHIFT); - reg &= ~(RX_PAUSE_EN | TX_PAUSE_EN); -@@ -635,7 +663,7 @@ static void bcm_sf2_sw_mac_config(struct - reg |= RX_PAUSE_EN; - } - -- reg_writel(priv, reg, REG_RGMII_CNTRL_P(port)); -+ reg_writel(priv, reg, reg_rgmii_ctrl); - - force_link: - /* Force link settings detected from the PHY */ -@@ -661,6 +689,7 @@ static void bcm_sf2_sw_mac_link_set(stru - phy_interface_t interface, bool link) - { - struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); -+ u32 reg_rgmii_ctrl; - u32 reg; - - if (!phy_interface_mode_is_rgmii(interface) && -@@ -668,13 +697,15 @@ static void bcm_sf2_sw_mac_link_set(stru - interface != PHY_INTERFACE_MODE_REVMII) - return; - -+ reg_rgmii_ctrl = bcm_sf2_reg_rgmii_cntrl(priv, port); -+ - /* If the link is down, just disable the interface to conserve power */ -- reg = reg_readl(priv, REG_RGMII_CNTRL_P(port)); -+ reg = reg_readl(priv, reg_rgmii_ctrl); - if (link) - reg |= RGMII_MODE_EN; - else - reg &= ~RGMII_MODE_EN; -- reg_writel(priv, reg, REG_RGMII_CNTRL_P(port)); -+ reg_writel(priv, reg, reg_rgmii_ctrl); - } - - static void bcm_sf2_sw_mac_link_down(struct dsa_switch *ds, int port, ---- a/drivers/net/dsa/bcm_sf2_regs.h -+++ b/drivers/net/dsa/bcm_sf2_regs.h -@@ -55,8 +55,6 @@ enum bcm_sf2_reg_offs { - #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 */ - #define RGMII_MODE_EN (1 << 0) - #define ID_MODE_DIS (1 << 1) |