--- /dev/null
+From af30f8eaa8fe4ff1987280f716309711997bd979 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Wed, 29 Dec 2021 18:16:42 +0100
+Subject: [PATCH] net: dsa: bcm_sf2: refactor LED regs access
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+1. Define more regs. Some switches (e.g. BCM4908) have up to 6 regs.
+2. Add helper for handling non-lineral port <-> reg mappings.
+3. Add support for 12 B LED reg blocks on BCM4908 (different layout)
+
+Complete support for LEDs setup will be implemented once Linux receives
+a proper design & implementation for "hardware" LEDs.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Acked-by: Florian Fainelli <f.fainelli@gmail.com>
+Link: https://lore.kernel.org/r/20211229171642.22942-1-zajec5@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/dsa/bcm_sf2.c | 54 ++++++++++++++++++++++++----
+ drivers/net/dsa/bcm_sf2.h | 10 ++++++
+ drivers/net/dsa/bcm_sf2_regs.h | 65 +++++++++++++++++++++++++++++++---
+ 3 files changed, 119 insertions(+), 10 deletions(-)
+
+--- a/drivers/net/dsa/bcm_sf2.c
++++ b/drivers/net/dsa/bcm_sf2.c
+@@ -31,6 +31,38 @@
+ #include "b53/b53_priv.h"
+ #include "b53/b53_regs.h"
+
++static u16 bcm_sf2_reg_led_base(struct bcm_sf2_priv *priv, int port)
++{
++ switch (port) {
++ case 0:
++ return REG_LED_0_CNTRL;
++ case 1:
++ return REG_LED_1_CNTRL;
++ case 2:
++ return REG_LED_2_CNTRL;
++ }
++
++ switch (priv->type) {
++ case BCM4908_DEVICE_ID:
++ switch (port) {
++ case 3:
++ return REG_LED_3_CNTRL;
++ case 7:
++ return REG_LED_4_CNTRL;
++ default:
++ break;
++ }
++ break;
++ default:
++ break;
++ }
++
++ WARN_ONCE(1, "Unsupported port %d\n", port);
++
++ /* RO fallback reg */
++ return REG_SWITCH_STATUS;
++}
++
+ static u16 bcm_sf2_reg_rgmii_cntrl(struct bcm_sf2_priv *priv, int port)
+ {
+ switch (priv->type) {
+@@ -141,9 +173,14 @@ static void bcm_sf2_gphy_enable_set(stru
+
+ /* Use PHY-driven LED signaling */
+ if (!enable) {
+- reg = reg_readl(priv, REG_LED_CNTRL(0));
+- reg |= SPDLNK_SRC_SEL;
+- reg_writel(priv, reg, REG_LED_CNTRL(0));
++ u16 led_ctrl = bcm_sf2_reg_led_base(priv, 0);
++
++ if (priv->type == BCM7278_DEVICE_ID ||
++ priv->type == BCM7445_DEVICE_ID) {
++ reg = reg_led_readl(priv, led_ctrl, 0);
++ reg |= LED_CNTRL_SPDLNK_SRC_SEL;
++ reg_led_writel(priv, reg, led_ctrl, 0);
++ }
+ }
+ }
+
+@@ -1085,9 +1122,14 @@ static const u16 bcm_sf2_4908_reg_offset
+ [REG_SPHY_CNTRL] = 0x24,
+ [REG_CROSSBAR] = 0xc8,
+ [REG_RGMII_11_CNTRL] = 0x014c,
+- [REG_LED_0_CNTRL] = 0x40,
+- [REG_LED_1_CNTRL] = 0x4c,
+- [REG_LED_2_CNTRL] = 0x58,
++ [REG_LED_0_CNTRL] = 0x40,
++ [REG_LED_1_CNTRL] = 0x4c,
++ [REG_LED_2_CNTRL] = 0x58,
++ [REG_LED_3_CNTRL] = 0x64,
++ [REG_LED_4_CNTRL] = 0x88,
++ [REG_LED_5_CNTRL] = 0xa0,
++ [REG_LED_AGGREGATE_CTRL] = 0xb8,
++
+ };
+
+ static const struct bcm_sf2_of_data bcm_sf2_4908_data = {
+--- a/drivers/net/dsa/bcm_sf2.h
++++ b/drivers/net/dsa/bcm_sf2.h
+@@ -203,6 +203,16 @@ SF2_IO_MACRO(acb);
+ SWITCH_INTR_L2(0);
+ SWITCH_INTR_L2(1);
+
++static inline u32 reg_led_readl(struct bcm_sf2_priv *priv, u16 off, u16 reg)
++{
++ return readl_relaxed(priv->reg + priv->reg_offsets[off] + reg);
++}
++
++static inline void reg_led_writel(struct bcm_sf2_priv *priv, u32 val, u16 off, u16 reg)
++{
++ writel_relaxed(val, priv->reg + priv->reg_offsets[off] + reg);
++}
++
+ /* RXNFC */
+ int bcm_sf2_get_rxnfc(struct dsa_switch *ds, int port,
+ struct ethtool_rxnfc *nfc, u32 *rule_locs);
+--- a/drivers/net/dsa/bcm_sf2_regs.h
++++ b/drivers/net/dsa/bcm_sf2_regs.h
+@@ -25,6 +25,10 @@ enum bcm_sf2_reg_offs {
+ REG_LED_0_CNTRL,
+ REG_LED_1_CNTRL,
+ REG_LED_2_CNTRL,
++ REG_LED_3_CNTRL,
++ REG_LED_4_CNTRL,
++ REG_LED_5_CNTRL,
++ REG_LED_AGGREGATE_CTRL,
+ REG_SWITCH_REG_MAX,
+ };
+
+@@ -56,6 +60,63 @@ enum bcm_sf2_reg_offs {
+ #define CROSSBAR_BCM4908_EXT_GPHY4 1
+ #define CROSSBAR_BCM4908_EXT_RGMII 2
+
++/* Relative to REG_LED_*_CNTRL (BCM7278, BCM7445) */
++#define LED_CNTRL_NO_LINK_ENCODE_SHIFT 0
++#define LED_CNTRL_M10_ENCODE_SHIFT 2
++#define LED_CNTRL_M100_ENCODE_SHIFT 4
++#define LED_CNTRL_M1000_ENCODE_SHIFT 6
++#define LED_CNTRL_SEL_NO_LINK_ENCODE_SHIFT 8
++#define LED_CNTRL_SEL_10M_ENCODE_SHIFT 10
++#define LED_CNTRL_SEL_100M_ENCODE_SHIFT 12
++#define LED_CNTRL_SEL_1000M_ENCODE_SHIFT 14
++#define LED_CNTRL_RX_DV_EN (1 << 16)
++#define LED_CNTRL_TX_EN_EN (1 << 17)
++#define LED_CNTRL_SPDLNK_LED0_ACT_SEL_SHIFT 18
++#define LED_CNTRL_SPDLNK_LED1_ACT_SEL_SHIFT 20
++#define LED_CNTRL_ACT_LED_ACT_SEL_SHIFT 22
++#define LED_CNTRL_SPDLNK_SRC_SEL (1 << 24)
++#define LED_CNTRL_SPDLNK_LED0_ACT_POL_SEL (1 << 25)
++#define LED_CNTRL_SPDLNK_LED1_ACT_POL_SEL (1 << 26)
++#define LED_CNTRL_ACT_LED_POL_SEL (1 << 27)
++#define LED_CNTRL_MASK 0x3
++
++/* Register relative to REG_LED_*_CNTRL (BCM4908) */
++#define REG_LED_CTRL 0x0
++#define LED_CTRL_RX_ACT_EN 0x00000001
++#define LED_CTRL_TX_ACT_EN 0x00000002
++#define LED_CTRL_SPDLNK_LED0_ACT_SEL 0x00000004
++#define LED_CTRL_SPDLNK_LED1_ACT_SEL 0x00000008
++#define LED_CTRL_SPDLNK_LED2_ACT_SEL 0x00000010
++#define LED_CTRL_ACT_LED_ACT_SEL 0x00000020
++#define LED_CTRL_SPDLNK_LED0_ACT_POL_SEL 0x00000040
++#define LED_CTRL_SPDLNK_LED1_ACT_POL_SEL 0x00000080
++#define LED_CTRL_SPDLNK_LED2_ACT_POL_SEL 0x00000100
++#define LED_CTRL_ACT_LED_POL_SEL 0x00000200
++#define LED_CTRL_LED_SPD_OVRD 0x00001c00
++#define LED_CTRL_LNK_STATUS_OVRD 0x00002000
++#define LED_CTRL_SPD_OVRD_EN 0x00004000
++#define LED_CTRL_LNK_OVRD_EN 0x00008000
++
++/* Register relative to REG_LED_*_CNTRL (BCM4908) */
++#define REG_LED_LINK_SPEED_ENC_SEL 0x4
++#define LED_LINK_SPEED_ENC_SEL_NO_LINK_SHIFT 0
++#define LED_LINK_SPEED_ENC_SEL_10M_SHIFT 3
++#define LED_LINK_SPEED_ENC_SEL_100M_SHIFT 6
++#define LED_LINK_SPEED_ENC_SEL_1000M_SHIFT 9
++#define LED_LINK_SPEED_ENC_SEL_2500M_SHIFT 12
++#define LED_LINK_SPEED_ENC_SEL_10G_SHIFT 15
++#define LED_LINK_SPEED_ENC_SEL_MASK 0x7
++
++/* Register relative to REG_LED_*_CNTRL (BCM4908) */
++#define REG_LED_LINK_SPEED_ENC 0x8
++#define LED_LINK_SPEED_ENC_NO_LINK_SHIFT 0
++#define LED_LINK_SPEED_ENC_M10_SHIFT 3
++#define LED_LINK_SPEED_ENC_M100_SHIFT 6
++#define LED_LINK_SPEED_ENC_M1000_SHIFT 9
++#define LED_LINK_SPEED_ENC_M2500_SHIFT 12
++#define LED_LINK_SPEED_ENC_M10G_SHIFT 15
++#define LED_LINK_SPEED_ENC_MASK 0x7
++
+ /* Relative to REG_RGMII_CNTRL */
+ #define RGMII_MODE_EN (1 << 0)
+ #define ID_MODE_DIS (1 << 1)
+@@ -73,10 +134,6 @@ enum bcm_sf2_reg_offs {
+ #define LPI_COUNT_SHIFT 9
+ #define LPI_COUNT_MASK 0x3F
+
+-#define REG_LED_CNTRL(x) (REG_LED_0_CNTRL + (x))
+-
+-#define SPDLNK_SRC_SEL (1 << 24)
+-
+ /* Register set relative to 'INTRL2_0' and 'INTRL2_1' */
+ #define INTRL2_CPU_STATUS 0x00
+ #define INTRL2_CPU_SET 0x04
projects / openwrt / openwrt.git / commitdiff