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path: root/drivers/net/dsa/rtl8366rb.c
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Diffstat (limited to 'drivers/net/dsa/rtl8366rb.c')
-rw-r--r--drivers/net/dsa/rtl8366rb.c1454
1 files changed, 0 insertions, 1454 deletions
diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c
deleted file mode 100644
index a4d5049df692..000000000000
--- a/drivers/net/dsa/rtl8366rb.c
+++ /dev/null
@@ -1,1454 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Realtek SMI subdriver for the Realtek RTL8366RB ethernet switch
- *
- * This is a sparsely documented chip, the only viable documentation seems
- * to be a patched up code drop from the vendor that appear in various
- * GPL source trees.
- *
- * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
- * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2010 Antti Seppälä <a.seppala@gmail.com>
- * Copyright (C) 2010 Roman Yeryomin <roman@advem.lv>
- * Copyright (C) 2011 Colin Leitner <colin.leitner@googlemail.com>
- */
-
-#include <linux/bitops.h>
-#include <linux/etherdevice.h>
-#include <linux/interrupt.h>
-#include <linux/irqdomain.h>
-#include <linux/irqchip/chained_irq.h>
-#include <linux/of_irq.h>
-#include <linux/regmap.h>
-
-#include "realtek-smi.h"
-
-#define RTL8366RB_PORT_NUM_CPU 5
-#define RTL8366RB_NUM_PORTS 6
-#define RTL8366RB_PHY_NO_MAX 4
-#define RTL8366RB_PHY_ADDR_MAX 31
-
-/* Switch Global Configuration register */
-#define RTL8366RB_SGCR 0x0000
-#define RTL8366RB_SGCR_EN_BC_STORM_CTRL BIT(0)
-#define RTL8366RB_SGCR_MAX_LENGTH(a) ((a) << 4)
-#define RTL8366RB_SGCR_MAX_LENGTH_MASK RTL8366RB_SGCR_MAX_LENGTH(0x3)
-#define RTL8366RB_SGCR_MAX_LENGTH_1522 RTL8366RB_SGCR_MAX_LENGTH(0x0)
-#define RTL8366RB_SGCR_MAX_LENGTH_1536 RTL8366RB_SGCR_MAX_LENGTH(0x1)
-#define RTL8366RB_SGCR_MAX_LENGTH_1552 RTL8366RB_SGCR_MAX_LENGTH(0x2)
-#define RTL8366RB_SGCR_MAX_LENGTH_9216 RTL8366RB_SGCR_MAX_LENGTH(0x3)
-#define RTL8366RB_SGCR_EN_VLAN BIT(13)
-#define RTL8366RB_SGCR_EN_VLAN_4KTB BIT(14)
-
-/* Port Enable Control register */
-#define RTL8366RB_PECR 0x0001
-
-/* Switch Security Control registers */
-#define RTL8366RB_SSCR0 0x0002
-#define RTL8366RB_SSCR1 0x0003
-#define RTL8366RB_SSCR2 0x0004
-#define RTL8366RB_SSCR2_DROP_UNKNOWN_DA BIT(0)
-
-/* Port Mode Control registers */
-#define RTL8366RB_PMC0 0x0005
-#define RTL8366RB_PMC0_SPI BIT(0)
-#define RTL8366RB_PMC0_EN_AUTOLOAD BIT(1)
-#define RTL8366RB_PMC0_PROBE BIT(2)
-#define RTL8366RB_PMC0_DIS_BISR BIT(3)
-#define RTL8366RB_PMC0_ADCTEST BIT(4)
-#define RTL8366RB_PMC0_SRAM_DIAG BIT(5)
-#define RTL8366RB_PMC0_EN_SCAN BIT(6)
-#define RTL8366RB_PMC0_P4_IOMODE_SHIFT 7
-#define RTL8366RB_PMC0_P4_IOMODE_MASK GENMASK(9, 7)
-#define RTL8366RB_PMC0_P5_IOMODE_SHIFT 10
-#define RTL8366RB_PMC0_P5_IOMODE_MASK GENMASK(12, 10)
-#define RTL8366RB_PMC0_SDSMODE_SHIFT 13
-#define RTL8366RB_PMC0_SDSMODE_MASK GENMASK(15, 13)
-#define RTL8366RB_PMC1 0x0006
-
-/* Port Mirror Control Register */
-#define RTL8366RB_PMCR 0x0007
-#define RTL8366RB_PMCR_SOURCE_PORT(a) (a)
-#define RTL8366RB_PMCR_SOURCE_PORT_MASK 0x000f
-#define RTL8366RB_PMCR_MONITOR_PORT(a) ((a) << 4)
-#define RTL8366RB_PMCR_MONITOR_PORT_MASK 0x00f0
-#define RTL8366RB_PMCR_MIRROR_RX BIT(8)
-#define RTL8366RB_PMCR_MIRROR_TX BIT(9)
-#define RTL8366RB_PMCR_MIRROR_SPC BIT(10)
-#define RTL8366RB_PMCR_MIRROR_ISO BIT(11)
-
-/* bits 0..7 = port 0, bits 8..15 = port 1 */
-#define RTL8366RB_PAACR0 0x0010
-/* bits 0..7 = port 2, bits 8..15 = port 3 */
-#define RTL8366RB_PAACR1 0x0011
-/* bits 0..7 = port 4, bits 8..15 = port 5 */
-#define RTL8366RB_PAACR2 0x0012
-#define RTL8366RB_PAACR_SPEED_10M 0
-#define RTL8366RB_PAACR_SPEED_100M 1
-#define RTL8366RB_PAACR_SPEED_1000M 2
-#define RTL8366RB_PAACR_FULL_DUPLEX BIT(2)
-#define RTL8366RB_PAACR_LINK_UP BIT(4)
-#define RTL8366RB_PAACR_TX_PAUSE BIT(5)
-#define RTL8366RB_PAACR_RX_PAUSE BIT(6)
-#define RTL8366RB_PAACR_AN BIT(7)
-
-#define RTL8366RB_PAACR_CPU_PORT (RTL8366RB_PAACR_SPEED_1000M | \
- RTL8366RB_PAACR_FULL_DUPLEX | \
- RTL8366RB_PAACR_LINK_UP | \
- RTL8366RB_PAACR_TX_PAUSE | \
- RTL8366RB_PAACR_RX_PAUSE)
-
-/* bits 0..7 = port 0, bits 8..15 = port 1 */
-#define RTL8366RB_PSTAT0 0x0014
-/* bits 0..7 = port 2, bits 8..15 = port 3 */
-#define RTL8366RB_PSTAT1 0x0015
-/* bits 0..7 = port 4, bits 8..15 = port 5 */
-#define RTL8366RB_PSTAT2 0x0016
-
-#define RTL8366RB_POWER_SAVING_REG 0x0021
-
-/* CPU port control reg */
-#define RTL8368RB_CPU_CTRL_REG 0x0061
-#define RTL8368RB_CPU_PORTS_MSK 0x00FF
-/* Enables inserting custom tag length/type 0x8899 */
-#define RTL8368RB_CPU_INSTAG BIT(15)
-
-#define RTL8366RB_SMAR0 0x0070 /* bits 0..15 */
-#define RTL8366RB_SMAR1 0x0071 /* bits 16..31 */
-#define RTL8366RB_SMAR2 0x0072 /* bits 32..47 */
-
-#define RTL8366RB_RESET_CTRL_REG 0x0100
-#define RTL8366RB_CHIP_CTRL_RESET_HW BIT(0)
-#define RTL8366RB_CHIP_CTRL_RESET_SW BIT(1)
-
-#define RTL8366RB_CHIP_ID_REG 0x0509
-#define RTL8366RB_CHIP_ID_8366 0x5937
-#define RTL8366RB_CHIP_VERSION_CTRL_REG 0x050A
-#define RTL8366RB_CHIP_VERSION_MASK 0xf
-
-/* PHY registers control */
-#define RTL8366RB_PHY_ACCESS_CTRL_REG 0x8000
-#define RTL8366RB_PHY_CTRL_READ BIT(0)
-#define RTL8366RB_PHY_CTRL_WRITE 0
-#define RTL8366RB_PHY_ACCESS_BUSY_REG 0x8001
-#define RTL8366RB_PHY_INT_BUSY BIT(0)
-#define RTL8366RB_PHY_EXT_BUSY BIT(4)
-#define RTL8366RB_PHY_ACCESS_DATA_REG 0x8002
-#define RTL8366RB_PHY_EXT_CTRL_REG 0x8010
-#define RTL8366RB_PHY_EXT_WRDATA_REG 0x8011
-#define RTL8366RB_PHY_EXT_RDDATA_REG 0x8012
-
-#define RTL8366RB_PHY_REG_MASK 0x1f
-#define RTL8366RB_PHY_PAGE_OFFSET 5
-#define RTL8366RB_PHY_PAGE_MASK (0xf << 5)
-#define RTL8366RB_PHY_NO_OFFSET 9
-#define RTL8366RB_PHY_NO_MASK (0x1f << 9)
-
-#define RTL8366RB_VLAN_INGRESS_CTRL2_REG 0x037f
-
-/* LED control registers */
-#define RTL8366RB_LED_BLINKRATE_REG 0x0430
-#define RTL8366RB_LED_BLINKRATE_MASK 0x0007
-#define RTL8366RB_LED_BLINKRATE_28MS 0x0000
-#define RTL8366RB_LED_BLINKRATE_56MS 0x0001
-#define RTL8366RB_LED_BLINKRATE_84MS 0x0002
-#define RTL8366RB_LED_BLINKRATE_111MS 0x0003
-#define RTL8366RB_LED_BLINKRATE_222MS 0x0004
-#define RTL8366RB_LED_BLINKRATE_446MS 0x0005
-
-#define RTL8366RB_LED_CTRL_REG 0x0431
-#define RTL8366RB_LED_OFF 0x0
-#define RTL8366RB_LED_DUP_COL 0x1
-#define RTL8366RB_LED_LINK_ACT 0x2
-#define RTL8366RB_LED_SPD1000 0x3
-#define RTL8366RB_LED_SPD100 0x4
-#define RTL8366RB_LED_SPD10 0x5
-#define RTL8366RB_LED_SPD1000_ACT 0x6
-#define RTL8366RB_LED_SPD100_ACT 0x7
-#define RTL8366RB_LED_SPD10_ACT 0x8
-#define RTL8366RB_LED_SPD100_10_ACT 0x9
-#define RTL8366RB_LED_FIBER 0xa
-#define RTL8366RB_LED_AN_FAULT 0xb
-#define RTL8366RB_LED_LINK_RX 0xc
-#define RTL8366RB_LED_LINK_TX 0xd
-#define RTL8366RB_LED_MASTER 0xe
-#define RTL8366RB_LED_FORCE 0xf
-#define RTL8366RB_LED_0_1_CTRL_REG 0x0432
-#define RTL8366RB_LED_1_OFFSET 6
-#define RTL8366RB_LED_2_3_CTRL_REG 0x0433
-#define RTL8366RB_LED_3_OFFSET 6
-
-#define RTL8366RB_MIB_COUNT 33
-#define RTL8366RB_GLOBAL_MIB_COUNT 1
-#define RTL8366RB_MIB_COUNTER_PORT_OFFSET 0x0050
-#define RTL8366RB_MIB_COUNTER_BASE 0x1000
-#define RTL8366RB_MIB_CTRL_REG 0x13F0
-#define RTL8366RB_MIB_CTRL_USER_MASK 0x0FFC
-#define RTL8366RB_MIB_CTRL_BUSY_MASK BIT(0)
-#define RTL8366RB_MIB_CTRL_RESET_MASK BIT(1)
-#define RTL8366RB_MIB_CTRL_PORT_RESET(_p) BIT(2 + (_p))
-#define RTL8366RB_MIB_CTRL_GLOBAL_RESET BIT(11)
-
-#define RTL8366RB_PORT_VLAN_CTRL_BASE 0x0063
-#define RTL8366RB_PORT_VLAN_CTRL_REG(_p) \
- (RTL8366RB_PORT_VLAN_CTRL_BASE + (_p) / 4)
-#define RTL8366RB_PORT_VLAN_CTRL_MASK 0xf
-#define RTL8366RB_PORT_VLAN_CTRL_SHIFT(_p) (4 * ((_p) % 4))
-
-#define RTL8366RB_VLAN_TABLE_READ_BASE 0x018C
-#define RTL8366RB_VLAN_TABLE_WRITE_BASE 0x0185
-
-#define RTL8366RB_TABLE_ACCESS_CTRL_REG 0x0180
-#define RTL8366RB_TABLE_VLAN_READ_CTRL 0x0E01
-#define RTL8366RB_TABLE_VLAN_WRITE_CTRL 0x0F01
-
-#define RTL8366RB_VLAN_MC_BASE(_x) (0x0020 + (_x) * 3)
-
-#define RTL8366RB_PORT_LINK_STATUS_BASE 0x0014
-#define RTL8366RB_PORT_STATUS_SPEED_MASK 0x0003
-#define RTL8366RB_PORT_STATUS_DUPLEX_MASK 0x0004
-#define RTL8366RB_PORT_STATUS_LINK_MASK 0x0010
-#define RTL8366RB_PORT_STATUS_TXPAUSE_MASK 0x0020
-#define RTL8366RB_PORT_STATUS_RXPAUSE_MASK 0x0040
-#define RTL8366RB_PORT_STATUS_AN_MASK 0x0080
-
-#define RTL8366RB_NUM_VLANS 16
-#define RTL8366RB_NUM_LEDGROUPS 4
-#define RTL8366RB_NUM_VIDS 4096
-#define RTL8366RB_PRIORITYMAX 7
-#define RTL8366RB_FIDMAX 7
-
-#define RTL8366RB_PORT_1 BIT(0) /* In userspace port 0 */
-#define RTL8366RB_PORT_2 BIT(1) /* In userspace port 1 */
-#define RTL8366RB_PORT_3 BIT(2) /* In userspace port 2 */
-#define RTL8366RB_PORT_4 BIT(3) /* In userspace port 3 */
-#define RTL8366RB_PORT_5 BIT(4) /* In userspace port 4 */
-
-#define RTL8366RB_PORT_CPU BIT(5) /* CPU port */
-
-#define RTL8366RB_PORT_ALL (RTL8366RB_PORT_1 | \
- RTL8366RB_PORT_2 | \
- RTL8366RB_PORT_3 | \
- RTL8366RB_PORT_4 | \
- RTL8366RB_PORT_5 | \
- RTL8366RB_PORT_CPU)
-
-#define RTL8366RB_PORT_ALL_BUT_CPU (RTL8366RB_PORT_1 | \
- RTL8366RB_PORT_2 | \
- RTL8366RB_PORT_3 | \
- RTL8366RB_PORT_4 | \
- RTL8366RB_PORT_5)
-
-#define RTL8366RB_PORT_ALL_EXTERNAL (RTL8366RB_PORT_1 | \
- RTL8366RB_PORT_2 | \
- RTL8366RB_PORT_3 | \
- RTL8366RB_PORT_4)
-
-#define RTL8366RB_PORT_ALL_INTERNAL RTL8366RB_PORT_CPU
-
-/* First configuration word per member config, VID and prio */
-#define RTL8366RB_VLAN_VID_MASK 0xfff
-#define RTL8366RB_VLAN_PRIORITY_SHIFT 12
-#define RTL8366RB_VLAN_PRIORITY_MASK 0x7
-/* Second configuration word per member config, member and untagged */
-#define RTL8366RB_VLAN_UNTAG_SHIFT 8
-#define RTL8366RB_VLAN_UNTAG_MASK 0xff
-#define RTL8366RB_VLAN_MEMBER_MASK 0xff
-/* Third config word per member config, STAG currently unused */
-#define RTL8366RB_VLAN_STAG_MBR_MASK 0xff
-#define RTL8366RB_VLAN_STAG_MBR_SHIFT 8
-#define RTL8366RB_VLAN_STAG_IDX_MASK 0x7
-#define RTL8366RB_VLAN_STAG_IDX_SHIFT 5
-#define RTL8366RB_VLAN_FID_MASK 0x7
-
-/* Port ingress bandwidth control */
-#define RTL8366RB_IB_BASE 0x0200
-#define RTL8366RB_IB_REG(pnum) (RTL8366RB_IB_BASE + (pnum))
-#define RTL8366RB_IB_BDTH_MASK 0x3fff
-#define RTL8366RB_IB_PREIFG BIT(14)
-
-/* Port egress bandwidth control */
-#define RTL8366RB_EB_BASE 0x02d1
-#define RTL8366RB_EB_REG(pnum) (RTL8366RB_EB_BASE + (pnum))
-#define RTL8366RB_EB_BDTH_MASK 0x3fff
-#define RTL8366RB_EB_PREIFG_REG 0x02f8
-#define RTL8366RB_EB_PREIFG BIT(9)
-
-#define RTL8366RB_BDTH_SW_MAX 1048512 /* 1048576? */
-#define RTL8366RB_BDTH_UNIT 64
-#define RTL8366RB_BDTH_REG_DEFAULT 16383
-
-/* QOS */
-#define RTL8366RB_QOS BIT(15)
-/* Include/Exclude Preamble and IFG (20 bytes). 0:Exclude, 1:Include. */
-#define RTL8366RB_QOS_DEFAULT_PREIFG 1
-
-/* Interrupt handling */
-#define RTL8366RB_INTERRUPT_CONTROL_REG 0x0440
-#define RTL8366RB_INTERRUPT_POLARITY BIT(0)
-#define RTL8366RB_P4_RGMII_LED BIT(2)
-#define RTL8366RB_INTERRUPT_MASK_REG 0x0441
-#define RTL8366RB_INTERRUPT_LINK_CHGALL GENMASK(11, 0)
-#define RTL8366RB_INTERRUPT_ACLEXCEED BIT(8)
-#define RTL8366RB_INTERRUPT_STORMEXCEED BIT(9)
-#define RTL8366RB_INTERRUPT_P4_FIBER BIT(12)
-#define RTL8366RB_INTERRUPT_P4_UTP BIT(13)
-#define RTL8366RB_INTERRUPT_VALID (RTL8366RB_INTERRUPT_LINK_CHGALL | \
- RTL8366RB_INTERRUPT_ACLEXCEED | \
- RTL8366RB_INTERRUPT_STORMEXCEED | \
- RTL8366RB_INTERRUPT_P4_FIBER | \
- RTL8366RB_INTERRUPT_P4_UTP)
-#define RTL8366RB_INTERRUPT_STATUS_REG 0x0442
-#define RTL8366RB_NUM_INTERRUPT 14 /* 0..13 */
-
-/* bits 0..5 enable force when cleared */
-#define RTL8366RB_MAC_FORCE_CTRL_REG 0x0F11
-
-#define RTL8366RB_OAM_PARSER_REG 0x0F14
-#define RTL8366RB_OAM_MULTIPLEXER_REG 0x0F15
-
-#define RTL8366RB_GREEN_FEATURE_REG 0x0F51
-#define RTL8366RB_GREEN_FEATURE_MSK 0x0007
-#define RTL8366RB_GREEN_FEATURE_TX BIT(0)
-#define RTL8366RB_GREEN_FEATURE_RX BIT(2)
-
-static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = {
- { 0, 0, 4, "IfInOctets" },
- { 0, 4, 4, "EtherStatsOctets" },
- { 0, 8, 2, "EtherStatsUnderSizePkts" },
- { 0, 10, 2, "EtherFragments" },
- { 0, 12, 2, "EtherStatsPkts64Octets" },
- { 0, 14, 2, "EtherStatsPkts65to127Octets" },
- { 0, 16, 2, "EtherStatsPkts128to255Octets" },
- { 0, 18, 2, "EtherStatsPkts256to511Octets" },
- { 0, 20, 2, "EtherStatsPkts512to1023Octets" },
- { 0, 22, 2, "EtherStatsPkts1024to1518Octets" },
- { 0, 24, 2, "EtherOversizeStats" },
- { 0, 26, 2, "EtherStatsJabbers" },
- { 0, 28, 2, "IfInUcastPkts" },
- { 0, 30, 2, "EtherStatsMulticastPkts" },
- { 0, 32, 2, "EtherStatsBroadcastPkts" },
- { 0, 34, 2, "EtherStatsDropEvents" },
- { 0, 36, 2, "Dot3StatsFCSErrors" },
- { 0, 38, 2, "Dot3StatsSymbolErrors" },
- { 0, 40, 2, "Dot3InPauseFrames" },
- { 0, 42, 2, "Dot3ControlInUnknownOpcodes" },
- { 0, 44, 4, "IfOutOctets" },
- { 0, 48, 2, "Dot3StatsSingleCollisionFrames" },
- { 0, 50, 2, "Dot3StatMultipleCollisionFrames" },
- { 0, 52, 2, "Dot3sDeferredTransmissions" },
- { 0, 54, 2, "Dot3StatsLateCollisions" },
- { 0, 56, 2, "EtherStatsCollisions" },
- { 0, 58, 2, "Dot3StatsExcessiveCollisions" },
- { 0, 60, 2, "Dot3OutPauseFrames" },
- { 0, 62, 2, "Dot1dBasePortDelayExceededDiscards" },
- { 0, 64, 2, "Dot1dTpPortInDiscards" },
- { 0, 66, 2, "IfOutUcastPkts" },
- { 0, 68, 2, "IfOutMulticastPkts" },
- { 0, 70, 2, "IfOutBroadcastPkts" },
-};
-
-static int rtl8366rb_get_mib_counter(struct realtek_smi *smi,
- int port,
- struct rtl8366_mib_counter *mib,
- u64 *mibvalue)
-{
- u32 addr, val;
- int ret;
- int i;
-
- addr = RTL8366RB_MIB_COUNTER_BASE +
- RTL8366RB_MIB_COUNTER_PORT_OFFSET * (port) +
- mib->offset;
-
- /* Writing access counter address first
- * then ASIC will prepare 64bits counter wait for being retrived
- */
- ret = regmap_write(smi->map, addr, 0); /* Write whatever */
- if (ret)
- return ret;
-
- /* Read MIB control register */
- ret = regmap_read(smi->map, RTL8366RB_MIB_CTRL_REG, &val);
- if (ret)
- return -EIO;
-
- if (val & RTL8366RB_MIB_CTRL_BUSY_MASK)
- return -EBUSY;
-
- if (val & RTL8366RB_MIB_CTRL_RESET_MASK)
- return -EIO;
-
- /* Read each individual MIB 16 bits at the time */
- *mibvalue = 0;
- for (i = mib->length; i > 0; i--) {
- ret = regmap_read(smi->map, addr + (i - 1), &val);
- if (ret)
- return ret;
- *mibvalue = (*mibvalue << 16) | (val & 0xFFFF);
- }
- return 0;
-}
-
-static u32 rtl8366rb_get_irqmask(struct irq_data *d)
-{
- int line = irqd_to_hwirq(d);
- u32 val;
-
- /* For line interrupts we combine link down in bits
- * 6..11 with link up in bits 0..5 into one interrupt.
- */
- if (line < 12)
- val = BIT(line) | BIT(line + 6);
- else
- val = BIT(line);
- return val;
-}
-
-static void rtl8366rb_mask_irq(struct irq_data *d)
-{
- struct realtek_smi *smi = irq_data_get_irq_chip_data(d);
- int ret;
-
- ret = regmap_update_bits(smi->map, RTL8366RB_INTERRUPT_MASK_REG,
- rtl8366rb_get_irqmask(d), 0);
- if (ret)
- dev_err(smi->dev, "could not mask IRQ\n");
-}
-
-static void rtl8366rb_unmask_irq(struct irq_data *d)
-{
- struct realtek_smi *smi = irq_data_get_irq_chip_data(d);
- int ret;
-
- ret = regmap_update_bits(smi->map, RTL8366RB_INTERRUPT_MASK_REG,
- rtl8366rb_get_irqmask(d),
- rtl8366rb_get_irqmask(d));
- if (ret)
- dev_err(smi->dev, "could not unmask IRQ\n");
-}
-
-static irqreturn_t rtl8366rb_irq(int irq, void *data)
-{
- struct realtek_smi *smi = data;
- u32 stat;
- int ret;
-
- /* This clears the IRQ status register */
- ret = regmap_read(smi->map, RTL8366RB_INTERRUPT_STATUS_REG,
- &stat);
- if (ret) {
- dev_err(smi->dev, "can't read interrupt status\n");
- return IRQ_NONE;
- }
- stat &= RTL8366RB_INTERRUPT_VALID;
- if (!stat)
- return IRQ_NONE;
- while (stat) {
- int line = __ffs(stat);
- int child_irq;
-
- stat &= ~BIT(line);
- /* For line interrupts we combine link down in bits
- * 6..11 with link up in bits 0..5 into one interrupt.
- */
- if (line < 12 && line > 5)
- line -= 5;
- child_irq = irq_find_mapping(smi->irqdomain, line);
- handle_nested_irq(child_irq);
- }
- return IRQ_HANDLED;
-}
-
-static struct irq_chip rtl8366rb_irq_chip = {
- .name = "RTL8366RB",
- .irq_mask = rtl8366rb_mask_irq,
- .irq_unmask = rtl8366rb_unmask_irq,
-};
-
-static int rtl8366rb_irq_map(struct irq_domain *domain, unsigned int irq,
- irq_hw_number_t hwirq)
-{
- irq_set_chip_data(irq, domain->host_data);
- irq_set_chip_and_handler(irq, &rtl8366rb_irq_chip, handle_simple_irq);
- irq_set_nested_thread(irq, 1);
- irq_set_noprobe(irq);
-
- return 0;
-}
-
-static void rtl8366rb_irq_unmap(struct irq_domain *d, unsigned int irq)
-{
- irq_set_nested_thread(irq, 0);
- irq_set_chip_and_handler(irq, NULL, NULL);
- irq_set_chip_data(irq, NULL);
-}
-
-static const struct irq_domain_ops rtl8366rb_irqdomain_ops = {
- .map = rtl8366rb_irq_map,
- .unmap = rtl8366rb_irq_unmap,
- .xlate = irq_domain_xlate_onecell,
-};
-
-static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi)
-{
- struct device_node *intc;
- unsigned long irq_trig;
- int irq;
- int ret;
- u32 val;
- int i;
-
- intc = of_get_child_by_name(smi->dev->of_node, "interrupt-controller");
- if (!intc) {
- dev_err(smi->dev, "missing child interrupt-controller node\n");
- return -EINVAL;
- }
- /* RB8366RB IRQs cascade off this one */
- irq = of_irq_get(intc, 0);
- if (irq <= 0) {
- dev_err(smi->dev, "failed to get parent IRQ\n");
- return irq ? irq : -EINVAL;
- }
-
- /* This clears the IRQ status register */
- ret = regmap_read(smi->map, RTL8366RB_INTERRUPT_STATUS_REG,
- &val);
- if (ret) {
- dev_err(smi->dev, "can't read interrupt status\n");
- return ret;
- }
-
- /* Fetch IRQ edge information from the descriptor */
- irq_trig = irqd_get_trigger_type(irq_get_irq_data(irq));
- switch (irq_trig) {
- case IRQF_TRIGGER_RISING:
- case IRQF_TRIGGER_HIGH:
- dev_info(smi->dev, "active high/rising IRQ\n");
- val = 0;
- break;
- case IRQF_TRIGGER_FALLING:
- case IRQF_TRIGGER_LOW:
- dev_info(smi->dev, "active low/falling IRQ\n");
- val = RTL8366RB_INTERRUPT_POLARITY;
- break;
- }
- ret = regmap_update_bits(smi->map, RTL8366RB_INTERRUPT_CONTROL_REG,
- RTL8366RB_INTERRUPT_POLARITY,
- val);
- if (ret) {
- dev_err(smi->dev, "could not configure IRQ polarity\n");
- return ret;
- }
-
- ret = devm_request_threaded_irq(smi->dev, irq, NULL,
- rtl8366rb_irq, IRQF_ONESHOT,
- "RTL8366RB", smi);
- if (ret) {
- dev_err(smi->dev, "unable to request irq: %d\n", ret);
- return ret;
- }
- smi->irqdomain = irq_domain_add_linear(intc,
- RTL8366RB_NUM_INTERRUPT,
- &rtl8366rb_irqdomain_ops,
- smi);
- if (!smi->irqdomain) {
- dev_err(smi->dev, "failed to create IRQ domain\n");
- return -EINVAL;
- }
- for (i = 0; i < smi->num_ports; i++)
- irq_set_parent(irq_create_mapping(smi->irqdomain, i), irq);
-
- return 0;
-}
-
-static int rtl8366rb_set_addr(struct realtek_smi *smi)
-{
- u8 addr[ETH_ALEN];
- u16 val;
- int ret;
-
- eth_random_addr(addr);
-
- dev_info(smi->dev, "set MAC: %02X:%02X:%02X:%02X:%02X:%02X\n",
- addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
- val = addr[0] << 8 | addr[1];
- ret = regmap_write(smi->map, RTL8366RB_SMAR0, val);
- if (ret)
- return ret;
- val = addr[2] << 8 | addr[3];
- ret = regmap_write(smi->map, RTL8366RB_SMAR1, val);
- if (ret)
- return ret;
- val = addr[4] << 8 | addr[5];
- ret = regmap_write(smi->map, RTL8366RB_SMAR2, val);
- if (ret)
- return ret;
-
- return 0;
-}
-
-/* Found in a vendor driver */
-
-/* For the "version 0" early silicon, appear in most source releases */
-static const u16 rtl8366rb_init_jam_ver_0[] = {
- 0x000B, 0x0001, 0x03A6, 0x0100, 0x03A7, 0x0001, 0x02D1, 0x3FFF,
- 0x02D2, 0x3FFF, 0x02D3, 0x3FFF, 0x02D4, 0x3FFF, 0x02D5, 0x3FFF,
- 0x02D6, 0x3FFF, 0x02D7, 0x3FFF, 0x02D8, 0x3FFF, 0x022B, 0x0688,
- 0x022C, 0x0FAC, 0x03D0, 0x4688, 0x03D1, 0x01F5, 0x0000, 0x0830,
- 0x02F9, 0x0200, 0x02F7, 0x7FFF, 0x02F8, 0x03FF, 0x0080, 0x03E8,
- 0x0081, 0x00CE, 0x0082, 0x00DA, 0x0083, 0x0230, 0xBE0F, 0x2000,
- 0x0231, 0x422A, 0x0232, 0x422A, 0x0233, 0x422A, 0x0234, 0x422A,
- 0x0235, 0x422A, 0x0236, 0x422A, 0x0237, 0x422A, 0x0238, 0x422A,
- 0x0239, 0x422A, 0x023A, 0x422A, 0x023B, 0x422A, 0x023C, 0x422A,
- 0x023D, 0x422A, 0x023E, 0x422A, 0x023F, 0x422A, 0x0240, 0x422A,
- 0x0241, 0x422A, 0x0242, 0x422A, 0x0243, 0x422A, 0x0244, 0x422A,
- 0x0245, 0x422A, 0x0246, 0x422A, 0x0247, 0x422A, 0x0248, 0x422A,
- 0x0249, 0x0146, 0x024A, 0x0146, 0x024B, 0x0146, 0xBE03, 0xC961,
- 0x024D, 0x0146, 0x024E, 0x0146, 0x024F, 0x0146, 0x0250, 0x0146,
- 0xBE64, 0x0226, 0x0252, 0x0146, 0x0253, 0x0146, 0x024C, 0x0146,
- 0x0251, 0x0146, 0x0254, 0x0146, 0xBE62, 0x3FD0, 0x0084, 0x0320,
- 0x0255, 0x0146, 0x0256, 0x0146, 0x0257, 0x0146, 0x0258, 0x0146,
- 0x0259, 0x0146, 0x025A, 0x0146, 0x025B, 0x0146, 0x025C, 0x0146,
- 0x025D, 0x0146, 0x025E, 0x0146, 0x025F, 0x0146, 0x0260, 0x0146,
- 0x0261, 0xA23F, 0x0262, 0x0294, 0x0263, 0xA23F, 0x0264, 0x0294,
- 0x0265, 0xA23F, 0x0266, 0x0294, 0x0267, 0xA23F, 0x0268, 0x0294,
- 0x0269, 0xA23F, 0x026A, 0x0294, 0x026B, 0xA23F, 0x026C, 0x0294,
- 0x026D, 0xA23F, 0x026E, 0x0294, 0x026F, 0xA23F, 0x0270, 0x0294,
- 0x02F5, 0x0048, 0xBE09, 0x0E00, 0xBE1E, 0x0FA0, 0xBE14, 0x8448,
- 0xBE15, 0x1007, 0xBE4A, 0xA284, 0xC454, 0x3F0B, 0xC474, 0x3F0B,
- 0xBE48, 0x3672, 0xBE4B, 0x17A7, 0xBE4C, 0x0B15, 0xBE52, 0x0EDD,
- 0xBE49, 0x8C00, 0xBE5B, 0x785C, 0xBE5C, 0x785C, 0xBE5D, 0x785C,
- 0xBE61, 0x368A, 0xBE63, 0x9B84, 0xC456, 0xCC13, 0xC476, 0xCC13,
- 0xBE65, 0x307D, 0xBE6D, 0x0005, 0xBE6E, 0xE120, 0xBE2E, 0x7BAF,
-};
-
-/* This v1 init sequence is from Belkin F5D8235 U-Boot release */
-static const u16 rtl8366rb_init_jam_ver_1[] = {
- 0x0000, 0x0830, 0x0001, 0x8000, 0x0400, 0x8130, 0xBE78, 0x3C3C,
- 0x0431, 0x5432, 0xBE37, 0x0CE4, 0x02FA, 0xFFDF, 0x02FB, 0xFFE0,
- 0xC44C, 0x1585, 0xC44C, 0x1185, 0xC44C, 0x1585, 0xC46C, 0x1585,
- 0xC46C, 0x1185, 0xC46C, 0x1585, 0xC451, 0x2135, 0xC471, 0x2135,
- 0xBE10, 0x8140, 0xBE15, 0x0007, 0xBE6E, 0xE120, 0xBE69, 0xD20F,
- 0xBE6B, 0x0320, 0xBE24, 0xB000, 0xBE23, 0xFF51, 0xBE22, 0xDF20,
- 0xBE21, 0x0140, 0xBE20, 0x00BB, 0xBE24, 0xB800, 0xBE24, 0x0000,
- 0xBE24, 0x7000, 0xBE23, 0xFF51, 0xBE22, 0xDF60, 0xBE21, 0x0140,
- 0xBE20, 0x0077, 0xBE24, 0x7800, 0xBE24, 0x0000, 0xBE2E, 0x7B7A,
- 0xBE36, 0x0CE4, 0x02F5, 0x0048, 0xBE77, 0x2940, 0x000A, 0x83E0,
- 0xBE79, 0x3C3C, 0xBE00, 0x1340,
-};
-
-/* This v2 init sequence is from Belkin F5D8235 U-Boot release */
-static const u16 rtl8366rb_init_jam_ver_2[] = {
- 0x0450, 0x0000, 0x0400, 0x8130, 0x000A, 0x83ED, 0x0431, 0x5432,
- 0xC44F, 0x6250, 0xC46F, 0x6250, 0xC456, 0x0C14, 0xC476, 0x0C14,
- 0xC44C, 0x1C85, 0xC44C, 0x1885, 0xC44C, 0x1C85, 0xC46C, 0x1C85,
- 0xC46C, 0x1885, 0xC46C, 0x1C85, 0xC44C, 0x0885, 0xC44C, 0x0881,
- 0xC44C, 0x0885, 0xC46C, 0x0885, 0xC46C, 0x0881, 0xC46C, 0x0885,
- 0xBE2E, 0x7BA7, 0xBE36, 0x1000, 0xBE37, 0x1000, 0x8000, 0x0001,
- 0xBE69, 0xD50F, 0x8000, 0x0000, 0xBE69, 0xD50F, 0xBE6E, 0x0320,
- 0xBE77, 0x2940, 0xBE78, 0x3C3C, 0xBE79, 0x3C3C, 0xBE6E, 0xE120,
- 0x8000, 0x0001, 0xBE15, 0x1007, 0x8000, 0x0000, 0xBE15, 0x1007,
- 0xBE14, 0x0448, 0xBE1E, 0x00A0, 0xBE10, 0x8160, 0xBE10, 0x8140,
- 0xBE00, 0x1340, 0x0F51, 0x0010,
-};
-
-/* Appears in a DDWRT code dump */
-static const u16 rtl8366rb_init_jam_ver_3[] = {
- 0x0000, 0x0830, 0x0400, 0x8130, 0x000A, 0x83ED, 0x0431, 0x5432,
- 0x0F51, 0x0017, 0x02F5, 0x0048, 0x02FA, 0xFFDF, 0x02FB, 0xFFE0,
- 0xC456, 0x0C14, 0xC476, 0x0C14, 0xC454, 0x3F8B, 0xC474, 0x3F8B,
- 0xC450, 0x2071, 0xC470, 0x2071, 0xC451, 0x226B, 0xC471, 0x226B,
- 0xC452, 0xA293, 0xC472, 0xA293, 0xC44C, 0x1585, 0xC44C, 0x1185,
- 0xC44C, 0x1585, 0xC46C, 0x1585, 0xC46C, 0x1185, 0xC46C, 0x1585,
- 0xC44C, 0x0185, 0xC44C, 0x0181, 0xC44C, 0x0185, 0xC46C, 0x0185,
- 0xC46C, 0x0181, 0xC46C, 0x0185, 0xBE24, 0xB000, 0xBE23, 0xFF51,
- 0xBE22, 0xDF20, 0xBE21, 0x0140, 0xBE20, 0x00BB, 0xBE24, 0xB800,
- 0xBE24, 0x0000, 0xBE24, 0x7000, 0xBE23, 0xFF51, 0xBE22, 0xDF60,
- 0xBE21, 0x0140, 0xBE20, 0x0077, 0xBE24, 0x7800, 0xBE24, 0x0000,
- 0xBE2E, 0x7BA7, 0xBE36, 0x1000, 0xBE37, 0x1000, 0x8000, 0x0001,
- 0xBE69, 0xD50F, 0x8000, 0x0000, 0xBE69, 0xD50F, 0xBE6B, 0x0320,
- 0xBE77, 0x2800, 0xBE78, 0x3C3C, 0xBE79, 0x3C3C, 0xBE6E, 0xE120,
- 0x8000, 0x0001, 0xBE10, 0x8140, 0x8000, 0x0000, 0xBE10, 0x8140,
- 0xBE15, 0x1007, 0xBE14, 0x0448, 0xBE1E, 0x00A0, 0xBE10, 0x8160,
- 0xBE10, 0x8140, 0xBE00, 0x1340, 0x0450, 0x0000, 0x0401, 0x0000,
-};
-
-/* Belkin F5D8235 v1, "belkin,f5d8235-v1" */
-static const u16 rtl8366rb_init_jam_f5d8235[] = {
- 0x0242, 0x02BF, 0x0245, 0x02BF, 0x0248, 0x02BF, 0x024B, 0x02BF,
- 0x024E, 0x02BF, 0x0251, 0x02BF, 0x0254, 0x0A3F, 0x0256, 0x0A3F,
- 0x0258, 0x0A3F, 0x025A, 0x0A3F, 0x025C, 0x0A3F, 0x025E, 0x0A3F,
- 0x0263, 0x007C, 0x0100, 0x0004, 0xBE5B, 0x3500, 0x800E, 0x200F,
- 0xBE1D, 0x0F00, 0x8001, 0x5011, 0x800A, 0xA2F4, 0x800B, 0x17A3,
- 0xBE4B, 0x17A3, 0xBE41, 0x5011, 0xBE17, 0x2100, 0x8000, 0x8304,
- 0xBE40, 0x8304, 0xBE4A, 0xA2F4, 0x800C, 0xA8D5, 0x8014, 0x5500,
- 0x8015, 0x0004, 0xBE4C, 0xA8D5, 0xBE59, 0x0008, 0xBE09, 0x0E00,
- 0xBE36, 0x1036, 0xBE37, 0x1036, 0x800D, 0x00FF, 0xBE4D, 0x00FF,
-};
-
-/* DGN3500, "netgear,dgn3500", "netgear,dgn3500b" */
-static const u16 rtl8366rb_init_jam_dgn3500[] = {
- 0x0000, 0x0830, 0x0400, 0x8130, 0x000A, 0x83ED, 0x0F51, 0x0017,
- 0x02F5, 0x0048, 0x02FA, 0xFFDF, 0x02FB, 0xFFE0, 0x0450, 0x0000,
- 0x0401, 0x0000, 0x0431, 0x0960,
-};
-
-/* This jam table activates "green ethernet", which means low power mode
- * and is claimed to detect the cable length and not use more power than
- * necessary, and the ports should enter power saving mode 10 seconds after
- * a cable is disconnected. Seems to always be the same.
- */
-static const u16 rtl8366rb_green_jam[][2] = {
- {0xBE78, 0x323C}, {0xBE77, 0x5000}, {0xBE2E, 0x7BA7},
- {0xBE59, 0x3459}, {0xBE5A, 0x745A}, {0xBE5B, 0x785C},
- {0xBE5C, 0x785C}, {0xBE6E, 0xE120}, {0xBE79, 0x323C},
-};
-
-static int rtl8366rb_setup(struct dsa_switch *ds)
-{
- struct realtek_smi *smi = ds->priv;
- const u16 *jam_table;
- u32 chip_ver = 0;
- u32 chip_id = 0;
- int jam_size;
- u32 val;
- int ret;
- int i;
-
- ret = regmap_read(smi->map, RTL8366RB_CHIP_ID_REG, &chip_id);
- if (ret) {
- dev_err(smi->dev, "unable to read chip id\n");
- return ret;
- }
-
- switch (chip_id) {
- case RTL8366RB_CHIP_ID_8366:
- break;
- default:
- dev_err(smi->dev, "unknown chip id (%04x)\n", chip_id);
- return -ENODEV;
- }
-
- ret = regmap_read(smi->map, RTL8366RB_CHIP_VERSION_CTRL_REG,
- &chip_ver);
- if (ret) {
- dev_err(smi->dev, "unable to read chip version\n");
- return ret;
- }
-
- dev_info(smi->dev, "RTL%04x ver %u chip found\n",
- chip_id, chip_ver & RTL8366RB_CHIP_VERSION_MASK);
-
- /* Do the init dance using the right jam table */
- switch (chip_ver) {
- case 0:
- jam_table = rtl8366rb_init_jam_ver_0;
- jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_0);
- break;
- case 1:
- jam_table = rtl8366rb_init_jam_ver_1;
- jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_1);
- break;
- case 2:
- jam_table = rtl8366rb_init_jam_ver_2;
- jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_2);
- break;
- default:
- jam_table = rtl8366rb_init_jam_ver_3;
- jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_3);
- break;
- }
-
- /* Special jam tables for special routers
- * TODO: are these necessary? Maintainers, please test
- * without them, using just the off-the-shelf tables.
- */
- if (of_machine_is_compatible("belkin,f5d8235-v1")) {
- jam_table = rtl8366rb_init_jam_f5d8235;
- jam_size = ARRAY_SIZE(rtl8366rb_init_jam_f5d8235);
- }
- if (of_machine_is_compatible("netgear,dgn3500") ||
- of_machine_is_compatible("netgear,dgn3500b")) {
- jam_table = rtl8366rb_init_jam_dgn3500;
- jam_size = ARRAY_SIZE(rtl8366rb_init_jam_dgn3500);
- }
-
- i = 0;
- while (i < jam_size) {
- if ((jam_table[i] & 0xBE00) == 0xBE00) {
- ret = regmap_read(smi->map,
- RTL8366RB_PHY_ACCESS_BUSY_REG,
- &val);
- if (ret)
- return ret;
- if (!(val & RTL8366RB_PHY_INT_BUSY)) {
- ret = regmap_write(smi->map,
- RTL8366RB_PHY_ACCESS_CTRL_REG,
- RTL8366RB_PHY_CTRL_WRITE);
- if (ret)
- return ret;
- }
- }
- dev_dbg(smi->dev, "jam %04x into register %04x\n",
- jam_table[i + 1],
- jam_table[i]);
- ret = regmap_write(smi->map,
- jam_table[i],
- jam_table[i + 1]);
- if (ret)
- return ret;
- i += 2;
- }
-
- /* Set up the "green ethernet" feature */
- i = 0;
- while (i < ARRAY_SIZE(rtl8366rb_green_jam)) {
- ret = regmap_read(smi->map, RTL8366RB_PHY_ACCESS_BUSY_REG,
- &val);
- if (ret)
- return ret;
- if (!(val & RTL8366RB_PHY_INT_BUSY)) {
- ret = regmap_write(smi->map,
- RTL8366RB_PHY_ACCESS_CTRL_REG,
- RTL8366RB_PHY_CTRL_WRITE);
- if (ret)
- return ret;
- ret = regmap_write(smi->map,
- rtl8366rb_green_jam[i][0],
- rtl8366rb_green_jam[i][1]);
- if (ret)
- return ret;
- i++;
- }
- }
- ret = regmap_write(smi->map,
- RTL8366RB_GREEN_FEATURE_REG,
- (chip_ver == 1) ? 0x0007 : 0x0003);
- if (ret)
- return ret;
-
- /* Vendor driver sets 0x240 in registers 0xc and 0xd (undocumented) */
- ret = regmap_write(smi->map, 0x0c, 0x240);
- if (ret)
- return ret;
- ret = regmap_write(smi->map, 0x0d, 0x240);
- if (ret)
- return ret;
-
- /* Set some random MAC address */
- ret = rtl8366rb_set_addr(smi);
- if (ret)
- return ret;
-
- /* Enable CPU port and enable inserting CPU tag
- *
- * Disabling RTL8368RB_CPU_INSTAG here will change the behaviour
- * of the switch totally and it will start talking Realtek RRCP
- * internally. It is probably possible to experiment with this,
- * but then the kernel needs to understand and handle RRCP first.
- */
- ret = regmap_update_bits(smi->map, RTL8368RB_CPU_CTRL_REG,
- 0xFFFF,
- RTL8368RB_CPU_INSTAG | BIT(smi->cpu_port));
- if (ret)
- return ret;
-
- /* Make sure we default-enable the fixed CPU port */
- ret = regmap_update_bits(smi->map, RTL8366RB_PECR,
- BIT(smi->cpu_port),
- 0);
- if (ret)
- return ret;
-
- /* Set maximum packet length to 1536 bytes */
- ret = regmap_update_bits(smi->map, RTL8366RB_SGCR,
- RTL8366RB_SGCR_MAX_LENGTH_MASK,
- RTL8366RB_SGCR_MAX_LENGTH_1536);
- if (ret)
- return ret;
-
- /* Enable learning for all ports */
- ret = regmap_write(smi->map, RTL8366RB_SSCR0, 0);
- if (ret)
- return ret;
-
- /* Enable auto ageing for all ports */
- ret = regmap_write(smi->map, RTL8366RB_SSCR1, 0);
- if (ret)
- return ret;
-
- /* Port 4 setup: this enables Port 4, usually the WAN port,
- * common PHY IO mode is apparently mode 0, and this is not what
- * the port is initialized to. There is no explanation of the
- * IO modes in the Realtek source code, if your WAN port is
- * connected to something exotic such as fiber, then this might
- * be worth experimenting with.
- */
- ret = regmap_update_bits(smi->map, RTL8366RB_PMC0,
- RTL8366RB_PMC0_P4_IOMODE_MASK,
- 0 << RTL8366RB_PMC0_P4_IOMODE_SHIFT);
- if (ret)
- return ret;
-
- /* Discard VLAN tagged packets if the port is not a member of
- * the VLAN with which the packets is associated.
- */
- ret = regmap_write(smi->map, RTL8366RB_VLAN_INGRESS_CTRL2_REG,
- RTL8366RB_PORT_ALL);
- if (ret)
- return ret;
-
- /* Don't drop packets whose DA has not been learned */
- ret = regmap_update_bits(smi->map, RTL8366RB_SSCR2,
- RTL8366RB_SSCR2_DROP_UNKNOWN_DA, 0);
- if (ret)
- return ret;
-
- /* Set blinking, TODO: make this configurable */
- ret = regmap_update_bits(smi->map, RTL8366RB_LED_BLINKRATE_REG,
- RTL8366RB_LED_BLINKRATE_MASK,
- RTL8366RB_LED_BLINKRATE_56MS);
- if (ret)
- return ret;
-
- /* Set up LED activity:
- * Each port has 4 LEDs, we configure all ports to the same
- * behaviour (no individual config) but we can set up each
- * LED separately.
- */
- if (smi->leds_disabled) {
- /* Turn everything off */
- regmap_update_bits(smi->map,
- RTL8366RB_LED_0_1_CTRL_REG,
- 0x0FFF, 0);
- regmap_update_bits(smi->map,
- RTL8366RB_LED_2_3_CTRL_REG,
- 0x0FFF, 0);
- regmap_update_bits(smi->map,
- RTL8366RB_INTERRUPT_CONTROL_REG,
- RTL8366RB_P4_RGMII_LED,
- 0);
- val = RTL8366RB_LED_OFF;
- } else {
- /* TODO: make this configurable per LED */
- val = RTL8366RB_LED_FORCE;
- }
- for (i = 0; i < 4; i++) {
- ret = regmap_update_bits(smi->map,
- RTL8366RB_LED_CTRL_REG,
- 0xf << (i * 4),
- val << (i * 4));
- if (ret)
- return ret;
- }
-
- ret = rtl8366_init_vlan(smi);
- if (ret)
- return ret;
-
- ret = rtl8366rb_setup_cascaded_irq(smi);
- if (ret)
- dev_info(smi->dev, "no interrupt support\n");
-
- ret = realtek_smi_setup_mdio(smi);
- if (ret) {
- dev_info(smi->dev, "could not set up MDIO bus\n");
- return -ENODEV;
- }
-
- return 0;
-}
-
-static enum dsa_tag_protocol rtl8366_get_tag_protocol(struct dsa_switch *ds,
- int port)
-{
- /* For now, the RTL switches are handled without any custom tags.
- *
- * It is possible to turn on "custom tags" by removing the
- * RTL8368RB_CPU_INSTAG flag when enabling the port but what it
- * does is unfamiliar to DSA: ethernet frames of type 8899, the Realtek
- * Remote Control Protocol (RRCP) start to appear on the CPU port of
- * the device. So this is not the ordinary few extra bytes in the
- * frame. Instead it appears that the switch starts to talk Realtek
- * RRCP internally which means a pretty complex RRCP implementation
- * decoding and responding the RRCP protocol is needed to exploit this.
- *
- * The OpenRRCP project (dormant since 2009) have reverse-egineered
- * parts of the protocol.
- */
- return DSA_TAG_PROTO_NONE;
-}
-
-static void rtl8366rb_adjust_link(struct dsa_switch *ds, int port,
- struct phy_device *phydev)
-{
- struct realtek_smi *smi = ds->priv;
- int ret;
-
- if (port != smi->cpu_port)
- return;
-
- dev_info(smi->dev, "adjust link on CPU port (%d)\n", port);
-
- /* Force the fixed CPU port into 1Gbit mode, no autonegotiation */
- ret = regmap_update_bits(smi->map, RTL8366RB_MAC_FORCE_CTRL_REG,
- BIT(port), BIT(port));
- if (ret)
- return;
-
- ret = regmap_update_bits(smi->map, RTL8366RB_PAACR2,
- 0xFF00U,
- RTL8366RB_PAACR_CPU_PORT << 8);
- if (ret)
- return;
-
- /* Enable the CPU port */
- ret = regmap_update_bits(smi->map, RTL8366RB_PECR, BIT(port),
- 0);
- if (ret)
- return;
-}
-
-static void rb8366rb_set_port_led(struct realtek_smi *smi,
- int port, bool enable)
-{
- u16 val = enable ? 0x3f : 0;
- int ret;
-
- if (smi->leds_disabled)
- return;
-
- switch (port) {
- case 0:
- ret = regmap_update_bits(smi->map,
- RTL8366RB_LED_0_1_CTRL_REG,
- 0x3F, val);
- break;
- case 1:
- ret = regmap_update_bits(smi->map,
- RTL8366RB_LED_0_1_CTRL_REG,
- 0x3F << RTL8366RB_LED_1_OFFSET,
- val << RTL8366RB_LED_1_OFFSET);
- break;
- case 2:
- ret = regmap_update_bits(smi->map,
- RTL8366RB_LED_2_3_CTRL_REG,
- 0x3F, val);
- break;
- case 3:
- ret = regmap_update_bits(smi->map,
- RTL8366RB_LED_2_3_CTRL_REG,
- 0x3F << RTL8366RB_LED_3_OFFSET,
- val << RTL8366RB_LED_3_OFFSET);
- break;
- case 4:
- ret = regmap_update_bits(smi->map,
- RTL8366RB_INTERRUPT_CONTROL_REG,
- RTL8366RB_P4_RGMII_LED,
- enable ? RTL8366RB_P4_RGMII_LED : 0);
- break;
- default:
- dev_err(smi->dev, "no LED for port %d\n", port);
- return;
- }
- if (ret)
- dev_err(smi->dev, "error updating LED on port %d\n", port);
-}
-
-static int
-rtl8366rb_port_enable(struct dsa_switch *ds, int port,
- struct phy_device *phy)
-{
- struct realtek_smi *smi = ds->priv;
- int ret;
-
- dev_dbg(smi->dev, "enable port %d\n", port);
- ret = regmap_update_bits(smi->map, RTL8366RB_PECR, BIT(port),
- 0);
- if (ret)
- return ret;
-
- rb8366rb_set_port_led(smi, port, true);
- return 0;
-}
-
-static void
-rtl8366rb_port_disable(struct dsa_switch *ds, int port,
- struct phy_device *phy)
-{
- struct realtek_smi *smi = ds->priv;
- int ret;
-
- dev_dbg(smi->dev, "disable port %d\n", port);
- ret = regmap_update_bits(smi->map, RTL8366RB_PECR, BIT(port),
- BIT(port));
- if (ret)
- return;
-
- rb8366rb_set_port_led(smi, port, false);
-}
-
-static int rtl8366rb_get_vlan_4k(struct realtek_smi *smi, u32 vid,
- struct rtl8366_vlan_4k *vlan4k)
-{
- u32 data[3];
- int ret;
- int i;
-
- memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k));
-
- if (vid >= RTL8366RB_NUM_VIDS)
- return -EINVAL;
-
- /* write VID */
- ret = regmap_write(smi->map, RTL8366RB_VLAN_TABLE_WRITE_BASE,
- vid & RTL8366RB_VLAN_VID_MASK);
- if (ret)
- return ret;
-
- /* write table access control word */
- ret = regmap_write(smi->map, RTL8366RB_TABLE_ACCESS_CTRL_REG,
- RTL8366RB_TABLE_VLAN_READ_CTRL);
- if (ret)
- return ret;
-
- for (i = 0; i < 3; i++) {
- ret = regmap_read(smi->map,
- RTL8366RB_VLAN_TABLE_READ_BASE + i,
- &data[i]);
- if (ret)
- return ret;
- }
-
- vlan4k->vid = vid;
- vlan4k->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
- RTL8366RB_VLAN_UNTAG_MASK;
- vlan4k->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
- vlan4k->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
-
- return 0;
-}
-
-static int rtl8366rb_set_vlan_4k(struct realtek_smi *smi,
- const struct rtl8366_vlan_4k *vlan4k)
-{
- u32 data[3];
- int ret;
- int i;
-
- if (vlan4k->vid >= RTL8366RB_NUM_VIDS ||
- vlan4k->member > RTL8366RB_VLAN_MEMBER_MASK ||
- vlan4k->untag > RTL8366RB_VLAN_UNTAG_MASK ||
- vlan4k->fid > RTL8366RB_FIDMAX)
- return -EINVAL;
-
- data[0] = vlan4k->vid & RTL8366RB_VLAN_VID_MASK;
- data[1] = (vlan4k->member & RTL8366RB_VLAN_MEMBER_MASK) |
- ((vlan4k->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
- RTL8366RB_VLAN_UNTAG_SHIFT);
- data[2] = vlan4k->fid & RTL8366RB_VLAN_FID_MASK;
-
- for (i = 0; i < 3; i++) {
- ret = regmap_write(smi->map,
- RTL8366RB_VLAN_TABLE_WRITE_BASE + i,
- data[i]);
- if (ret)
- return ret;
- }
-
- /* write table access control word */
- ret = regmap_write(smi->map, RTL8366RB_TABLE_ACCESS_CTRL_REG,
- RTL8366RB_TABLE_VLAN_WRITE_CTRL);
-
- return ret;
-}
-
-static int rtl8366rb_get_vlan_mc(struct realtek_smi *smi, u32 index,
- struct rtl8366_vlan_mc *vlanmc)
-{
- u32 data[3];
- int ret;
- int i;
-
- memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc));
-
- if (index >= RTL8366RB_NUM_VLANS)
- return -EINVAL;
-
- for (i = 0; i < 3; i++) {
- ret = regmap_read(smi->map,
- RTL8366RB_VLAN_MC_BASE(index) + i,
- &data[i]);
- if (ret)
- return ret;
- }
-
- vlanmc->vid = data[0] & RTL8366RB_VLAN_VID_MASK;
- vlanmc->priority = (data[0] >> RTL8366RB_VLAN_PRIORITY_SHIFT) &
- RTL8366RB_VLAN_PRIORITY_MASK;
- vlanmc->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
- RTL8366RB_VLAN_UNTAG_MASK;
- vlanmc->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
- vlanmc->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
-
- return 0;
-}
-
-static int rtl8366rb_set_vlan_mc(struct realtek_smi *smi, u32 index,
- const struct rtl8366_vlan_mc *vlanmc)
-{
- u32 data[3];
- int ret;
- int i;
-
- if (index >= RTL8366RB_NUM_VLANS ||
- vlanmc->vid >= RTL8366RB_NUM_VIDS ||
- vlanmc->priority > RTL8366RB_PRIORITYMAX ||
- vlanmc->member > RTL8366RB_VLAN_MEMBER_MASK ||
- vlanmc->untag > RTL8366RB_VLAN_UNTAG_MASK ||
- vlanmc->fid > RTL8366RB_FIDMAX)
- return -EINVAL;
-
- data[0] = (vlanmc->vid & RTL8366RB_VLAN_VID_MASK) |
- ((vlanmc->priority & RTL8366RB_VLAN_PRIORITY_MASK) <<
- RTL8366RB_VLAN_PRIORITY_SHIFT);
- data[1] = (vlanmc->member & RTL8366RB_VLAN_MEMBER_MASK) |
- ((vlanmc->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
- RTL8366RB_VLAN_UNTAG_SHIFT);
- data[2] = vlanmc->fid & RTL8366RB_VLAN_FID_MASK;
-
- for (i = 0; i < 3; i++) {
- ret = regmap_write(smi->map,
- RTL8366RB_VLAN_MC_BASE(index) + i,
- data[i]);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-static int rtl8366rb_get_mc_index(struct realtek_smi *smi, int port, int *val)
-{
- u32 data;
- int ret;
-
- if (port >= smi->num_ports)
- return -EINVAL;
-
- ret = regmap_read(smi->map, RTL8366RB_PORT_VLAN_CTRL_REG(port),
- &data);
- if (ret)
- return ret;
-
- *val = (data >> RTL8366RB_PORT_VLAN_CTRL_SHIFT(port)) &
- RTL8366RB_PORT_VLAN_CTRL_MASK;
-
- return 0;
-}
-
-static int rtl8366rb_set_mc_index(struct realtek_smi *smi, int port, int index)
-{
- if (port >= smi->num_ports || index >= RTL8366RB_NUM_VLANS)
- return -EINVAL;
-
- return regmap_update_bits(smi->map, RTL8366RB_PORT_VLAN_CTRL_REG(port),
- RTL8366RB_PORT_VLAN_CTRL_MASK <<
- RTL8366RB_PORT_VLAN_CTRL_SHIFT(port),
- (index & RTL8366RB_PORT_VLAN_CTRL_MASK) <<
- RTL8366RB_PORT_VLAN_CTRL_SHIFT(port));
-}
-
-static bool rtl8366rb_is_vlan_valid(struct realtek_smi *smi, unsigned int vlan)
-{
- unsigned int max = RTL8366RB_NUM_VLANS;
-
- if (smi->vlan4k_enabled)
- max = RTL8366RB_NUM_VIDS - 1;
-
- if (vlan == 0 || vlan >= max)
- return false;
-
- return true;
-}
-
-static int rtl8366rb_enable_vlan(struct realtek_smi *smi, bool enable)
-{
- dev_dbg(smi->dev, "%s VLAN\n", enable ? "enable" : "disable");
- return regmap_update_bits(smi->map,
- RTL8366RB_SGCR, RTL8366RB_SGCR_EN_VLAN,
- enable ? RTL8366RB_SGCR_EN_VLAN : 0);
-}
-
-static int rtl8366rb_enable_vlan4k(struct realtek_smi *smi, bool enable)
-{
- dev_dbg(smi->dev, "%s VLAN 4k\n", enable ? "enable" : "disable");
- return regmap_update_bits(smi->map, RTL8366RB_SGCR,
- RTL8366RB_SGCR_EN_VLAN_4KTB,
- enable ? RTL8366RB_SGCR_EN_VLAN_4KTB : 0);
-}
-
-static int rtl8366rb_phy_read(struct realtek_smi *smi, int phy, int regnum)
-{
- u32 val;
- u32 reg;
- int ret;
-
- if (phy > RTL8366RB_PHY_NO_MAX)
- return -EINVAL;
-
- ret = regmap_write(smi->map, RTL8366RB_PHY_ACCESS_CTRL_REG,
- RTL8366RB_PHY_CTRL_READ);
- if (ret)
- return ret;
-
- reg = 0x8000 | (1 << (phy + RTL8366RB_PHY_NO_OFFSET)) | regnum;
-
- ret = regmap_write(smi->map, reg, 0);
- if (ret) {
- dev_err(smi->dev,
- "failed to write PHY%d reg %04x @ %04x, ret %d\n",
- phy, regnum, reg, ret);
- return ret;
- }
-
- ret = regmap_read(smi->map, RTL8366RB_PHY_ACCESS_DATA_REG, &val);
- if (ret)
- return ret;
-
- dev_dbg(smi->dev, "read PHY%d register 0x%04x @ %08x, val <- %04x\n",
- phy, regnum, reg, val);
-
- return val;
-}
-
-static int rtl8366rb_phy_write(struct realtek_smi *smi, int phy, int regnum,
- u16 val)
-{
- u32 reg;
- int ret;
-
- if (phy > RTL8366RB_PHY_NO_MAX)
- return -EINVAL;
-
- ret = regmap_write(smi->map, RTL8366RB_PHY_ACCESS_CTRL_REG,
- RTL8366RB_PHY_CTRL_WRITE);
- if (ret)
- return ret;
-
- reg = 0x8000 | (1 << (phy + RTL8366RB_PHY_NO_OFFSET)) | regnum;
-
- dev_dbg(smi->dev, "write PHY%d register 0x%04x @ %04x, val -> %04x\n",
- phy, regnum, reg, val);
-
- ret = regmap_write(smi->map, reg, val);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static int rtl8366rb_reset_chip(struct realtek_smi *smi)
-{
- int timeout = 10;
- u32 val;
- int ret;
-
- realtek_smi_write_reg_noack(smi, RTL8366RB_RESET_CTRL_REG,
- RTL8366RB_CHIP_CTRL_RESET_HW);
- do {
- usleep_range(20000, 25000);
- ret = regmap_read(smi->map, RTL8366RB_RESET_CTRL_REG, &val);
- if (ret)
- return ret;
-
- if (!(val & RTL8366RB_CHIP_CTRL_RESET_HW))
- break;
- } while (--timeout);
-
- if (!timeout) {
- dev_err(smi->dev, "timeout waiting for the switch to reset\n");
- return -EIO;
- }
-
- return 0;
-}
-
-static int rtl8366rb_detect(struct realtek_smi *smi)
-{
- struct device *dev = smi->dev;
- int ret;
- u32 val;
-
- /* Detect device */
- ret = regmap_read(smi->map, 0x5c, &val);
- if (ret) {
- dev_err(dev, "can't get chip ID (%d)\n", ret);
- return ret;
- }
-
- switch (val) {
- case 0x6027:
- dev_info(dev, "found an RTL8366S switch\n");
- dev_err(dev, "this switch is not yet supported, submit patches!\n");
- return -ENODEV;
- case 0x5937:
- dev_info(dev, "found an RTL8366RB switch\n");
- smi->cpu_port = RTL8366RB_PORT_NUM_CPU;
- smi->num_ports = RTL8366RB_NUM_PORTS;
- smi->num_vlan_mc = RTL8366RB_NUM_VLANS;
- smi->mib_counters = rtl8366rb_mib_counters;
- smi->num_mib_counters = ARRAY_SIZE(rtl8366rb_mib_counters);
- break;
- default:
- dev_info(dev, "found an Unknown Realtek switch (id=0x%04x)\n",
- val);
- break;
- }
-
- ret = rtl8366rb_reset_chip(smi);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static const struct dsa_switch_ops rtl8366rb_switch_ops = {
- .get_tag_protocol = rtl8366_get_tag_protocol,
- .setup = rtl8366rb_setup,
- .adjust_link = rtl8366rb_adjust_link,
- .get_strings = rtl8366_get_strings,
- .get_ethtool_stats = rtl8366_get_ethtool_stats,
- .get_sset_count = rtl8366_get_sset_count,
- .port_vlan_filtering = rtl8366_vlan_filtering,
- .port_vlan_prepare = rtl8366_vlan_prepare,
- .port_vlan_add = rtl8366_vlan_add,
- .port_vlan_del = rtl8366_vlan_del,
- .port_enable = rtl8366rb_port_enable,
- .port_disable = rtl8366rb_port_disable,
-};
-
-static const struct realtek_smi_ops rtl8366rb_smi_ops = {
- .detect = rtl8366rb_detect,
- .get_vlan_mc = rtl8366rb_get_vlan_mc,
- .set_vlan_mc = rtl8366rb_set_vlan_mc,
- .get_vlan_4k = rtl8366rb_get_vlan_4k,
- .set_vlan_4k = rtl8366rb_set_vlan_4k,
- .get_mc_index = rtl8366rb_get_mc_index,
- .set_mc_index = rtl8366rb_set_mc_index,
- .get_mib_counter = rtl8366rb_get_mib_counter,
- .is_vlan_valid = rtl8366rb_is_vlan_valid,
- .enable_vlan = rtl8366rb_enable_vlan,
- .enable_vlan4k = rtl8366rb_enable_vlan4k,
- .phy_read = rtl8366rb_phy_read,
- .phy_write = rtl8366rb_phy_write,
-};
-
-const struct realtek_smi_variant rtl8366rb_variant = {
- .ds_ops = &rtl8366rb_switch_ops,
- .ops = &rtl8366rb_smi_ops,
- .clk_delay = 10,
- .cmd_read = 0xa9,
- .cmd_write = 0xa8,
-};
-EXPORT_SYMBOL_GPL(rtl8366rb_variant);
generated by cgit (git 2.34.1) at 2025-12-24 21:14:00 +0000