aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm47xx/patches-3.6/700-ssb-gigabit-ethernet-driver.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/brcm47xx/patches-3.6/700-ssb-gigabit-ethernet-driver.patch')
-rw-r--r--target/linux/brcm47xx/patches-3.6/700-ssb-gigabit-ethernet-driver.patch438
1 files changed, 438 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.6/700-ssb-gigabit-ethernet-driver.patch b/target/linux/brcm47xx/patches-3.6/700-ssb-gigabit-ethernet-driver.patch
new file mode 100644
index 0000000000..211fc28e15
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/700-ssb-gigabit-ethernet-driver.patch
@@ -0,0 +1,438 @@
+--- a/drivers/net/ethernet/broadcom/tg3.c
++++ b/drivers/net/ethernet/broadcom/tg3.c
+@@ -44,6 +44,7 @@
+ #include <linux/prefetch.h>
+ #include <linux/dma-mapping.h>
+ #include <linux/firmware.h>
++#include <linux/ssb/ssb_driver_gige.h>
+ #if IS_ENABLED(CONFIG_HWMON)
+ #include <linux/hwmon.h>
+ #include <linux/hwmon-sysfs.h>
+@@ -253,6 +254,7 @@ static DEFINE_PCI_DEVICE_TABLE(tg3_pci_t
+ {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
+ {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
+ {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
++ {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
+ {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
+ {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
+ {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
+@@ -535,7 +537,9 @@ static void _tw32_flush(struct tg3 *tp,
+ static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
+ {
+ tp->write32_mbox(tp, off, val);
+- if (!tg3_flag(tp, MBOX_WRITE_REORDER) && !tg3_flag(tp, ICH_WORKAROUND))
++ if (tg3_flag(tp, FLUSH_POSTED_WRITES) ||
++ (!tg3_flag(tp, MBOX_WRITE_REORDER) &&
++ !tg3_flag(tp, ICH_WORKAROUND)))
+ tp->read32_mbox(tp, off);
+ }
+
+@@ -545,7 +549,8 @@ static void tg3_write32_tx_mbox(struct t
+ writel(val, mbox);
+ if (tg3_flag(tp, TXD_MBOX_HWBUG))
+ writel(val, mbox);
+- if (tg3_flag(tp, MBOX_WRITE_REORDER))
++ if (tg3_flag(tp, MBOX_WRITE_REORDER) ||
++ tg3_flag(tp, FLUSH_POSTED_WRITES))
+ readl(mbox);
+ }
+
+@@ -1052,7 +1057,8 @@ static void tg3_switch_clocks(struct tg3
+
+ #define PHY_BUSY_LOOPS 5000
+
+-static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
++static int __tg3_readphy(struct tg3 *tp, unsigned int phy_addr, int reg,
++ u32 *val)
+ {
+ u32 frame_val;
+ unsigned int loops;
+@@ -1068,7 +1074,7 @@ static int tg3_readphy(struct tg3 *tp, i
+
+ *val = 0x0;
+
+- frame_val = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
++ frame_val = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
+ MI_COM_PHY_ADDR_MASK);
+ frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
+ MI_COM_REG_ADDR_MASK);
+@@ -1105,7 +1111,13 @@ static int tg3_readphy(struct tg3 *tp, i
+ return ret;
+ }
+
+-static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
++static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
++{
++ return __tg3_readphy(tp, tp->phy_addr, reg, val);
++}
++
++static int __tg3_writephy(struct tg3 *tp, unsigned int phy_addr, int reg,
++ u32 val)
+ {
+ u32 frame_val;
+ unsigned int loops;
+@@ -1123,7 +1135,7 @@ static int tg3_writephy(struct tg3 *tp,
+
+ tg3_ape_lock(tp, tp->phy_ape_lock);
+
+- frame_val = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
++ frame_val = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
+ MI_COM_PHY_ADDR_MASK);
+ frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
+ MI_COM_REG_ADDR_MASK);
+@@ -1158,6 +1170,11 @@ static int tg3_writephy(struct tg3 *tp,
+ return ret;
+ }
+
++static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
++{
++ return __tg3_writephy(tp, tp->phy_addr, reg, val);
++}
++
+ static int tg3_phy_cl45_write(struct tg3 *tp, u32 devad, u32 addr, u32 val)
+ {
+ int err;
+@@ -1730,6 +1747,11 @@ static int tg3_poll_fw(struct tg3 *tp)
+ int i;
+ u32 val;
+
++ if (tg3_flag(tp, IS_SSB_CORE)) {
++ /* We don't use firmware. */
++ return 0;
++ }
++
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
+ /* Wait up to 20ms for init done. */
+ for (i = 0; i < 200; i++) {
+@@ -3312,6 +3334,8 @@ static int tg3_nvram_write_block(struct
+ {
+ int ret;
+
++ if (tg3_flag(tp, IS_SSB_CORE))
++ return -ENODEV;
+ if (tg3_flag(tp, EEPROM_WRITE_PROT)) {
+ tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
+ ~GRC_LCLCTRL_GPIO_OUTPUT1);
+@@ -3387,6 +3411,11 @@ static int tg3_halt_cpu(struct tg3 *tp,
+ tw32_f(offset + CPU_MODE, CPU_MODE_HALT);
+ udelay(10);
+ } else {
++ /* There is only an Rx CPU for the 5750 derivative in the
++ * BCM4785. */
++ if (tg3_flag(tp, IS_SSB_CORE))
++ return 0;
++
+ for (i = 0; i < 10000; i++) {
+ tw32(offset + CPU_STATE, 0xffffffff);
+ tw32(offset + CPU_MODE, CPU_MODE_HALT);
+@@ -3401,9 +3430,12 @@ static int tg3_halt_cpu(struct tg3 *tp,
+ return -ENODEV;
+ }
+
+- /* Clear firmware's nvram arbitration. */
+- if (tg3_flag(tp, NVRAM))
+- tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
++ if (!tg3_flag(tp, IS_SSB_CORE)) {
++ /* Clear firmware's nvram arbitration. */
++ if (tg3_flag(tp, NVRAM))
++ tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
++ }
++
+ return 0;
+ }
+
+@@ -3466,6 +3498,11 @@ static int tg3_load_5701_a0_firmware_fix
+ const __be32 *fw_data;
+ int err, i;
+
++ if (tg3_flag(tp, IS_SSB_CORE)) {
++ /* We don't use firmware. */
++ return 0;
++ }
++
+ fw_data = (void *)tp->fw->data;
+
+ /* Firmware blob starts with version numbers, followed by
+@@ -3522,6 +3559,11 @@ static int tg3_load_tso_firmware(struct
+ unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
+ int err, i;
+
++ if (tg3_flag(tp, IS_SSB_CORE)) {
++ /* We don't use firmware. */
++ return 0;
++ }
++
+ if (tg3_flag(tp, HW_TSO_1) ||
+ tg3_flag(tp, HW_TSO_2) ||
+ tg3_flag(tp, HW_TSO_3))
+@@ -3862,8 +3904,9 @@ static int tg3_power_down_prepare(struct
+ tg3_frob_aux_power(tp, true);
+
+ /* Workaround for unstable PLL clock */
+- if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
+- (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
++ if ((!tg3_flag(tp, IS_SSB_CORE)) &&
++ ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
++ (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX))) {
+ u32 val = tr32(0x7d00);
+
+ val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
+@@ -4365,6 +4408,14 @@ relink:
+ if (current_link_up == 0 || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
+ tg3_phy_copper_begin(tp);
+
++ if (tg3_flag(tp, ROBOSWITCH)) {
++ current_link_up = 1;
++ current_speed = SPEED_1000; /* FIXME */
++ current_duplex = DUPLEX_FULL;
++ tp->link_config.active_speed = current_speed;
++ tp->link_config.active_duplex = current_duplex;
++ }
++
+ tg3_readphy(tp, MII_BMSR, &bmsr);
+ if ((!tg3_readphy(tp, MII_BMSR, &bmsr) && (bmsr & BMSR_LSTATUS)) ||
+ (tp->mac_mode & MAC_MODE_PORT_INT_LPBACK))
+@@ -4383,6 +4434,26 @@ relink:
+ else
+ tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
+
++ /* In order for the 5750 core in BCM4785 chip to work properly
++ * in RGMII mode, the Led Control Register must be set up.
++ */
++ if (tg3_flag(tp, RGMII_MODE)) {
++ u32 led_ctrl = tr32(MAC_LED_CTRL);
++ led_ctrl &= ~(LED_CTRL_1000MBPS_ON | LED_CTRL_100MBPS_ON);
++
++ if (tp->link_config.active_speed == SPEED_10)
++ led_ctrl |= LED_CTRL_LNKLED_OVERRIDE;
++ else if (tp->link_config.active_speed == SPEED_100)
++ led_ctrl |= (LED_CTRL_LNKLED_OVERRIDE |
++ LED_CTRL_100MBPS_ON);
++ else if (tp->link_config.active_speed == SPEED_1000)
++ led_ctrl |= (LED_CTRL_LNKLED_OVERRIDE |
++ LED_CTRL_1000MBPS_ON);
++
++ tw32(MAC_LED_CTRL, led_ctrl);
++ udelay(40);
++ }
++
+ tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
+ if (tp->link_config.active_duplex == DUPLEX_HALF)
+ tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
+@@ -8110,6 +8181,14 @@ static int tg3_chip_reset(struct tg3 *tp
+ tw32(0x5000, 0x400);
+ }
+
++ if (tg3_flag(tp, IS_SSB_CORE)) {
++ /* BCM4785: In order to avoid repercussions from using
++ * potentially defective internal ROM, stop the Rx RISC CPU,
++ * which is not required. */
++ tg3_stop_fw(tp);
++ tg3_halt_cpu(tp, RX_CPU_BASE);
++ }
++
+ tw32(GRC_MODE, tp->grc_mode);
+
+ if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
+@@ -9729,6 +9808,11 @@ static void tg3_timer(unsigned long __op
+ tg3_flag(tp, 57765_CLASS))
+ tg3_chk_missed_msi(tp);
+
++ if (tg3_flag(tp, FLUSH_POSTED_WRITES)) {
++ /* BCM4785: Flush posted writes from GbE to host memory. */
++ tr32(HOSTCC_MODE);
++ }
++
+ if (!tg3_flag(tp, TAGGED_STATUS)) {
+ /* All of this garbage is because when using non-tagged
+ * IRQ status the mailbox/status_block protocol the chip
+@@ -11424,6 +11508,11 @@ static int tg3_test_nvram(struct tg3 *tp
+ if (tg3_flag(tp, NO_NVRAM))
+ return 0;
+
++ if (tg3_flag(tp, IS_SSB_CORE)) {
++ /* We don't have NVRAM. */
++ return 0;
++ }
++
+ if (tg3_nvram_read(tp, 0, &magic) != 0)
+ return -EIO;
+
+@@ -12392,11 +12481,12 @@ static int tg3_ioctl(struct net_device *
+ if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
+ break; /* We have no PHY */
+
+- if (!netif_running(dev))
++ if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
+ return -EAGAIN;
+
+ spin_lock_bh(&tp->lock);
+- err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
++ err = __tg3_readphy(tp, data->phy_id & 0x1f,
++ data->reg_num & 0x1f, &mii_regval);
+ spin_unlock_bh(&tp->lock);
+
+ data->val_out = mii_regval;
+@@ -12408,11 +12498,12 @@ static int tg3_ioctl(struct net_device *
+ if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
+ break; /* We have no PHY */
+
+- if (!netif_running(dev))
++ if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
+ return -EAGAIN;
+
+ spin_lock_bh(&tp->lock);
+- err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
++ err = __tg3_writephy(tp, data->phy_id & 0x1f,
++ data->reg_num & 0x1f, data->val_in);
+ spin_unlock_bh(&tp->lock);
+
+ return err;
+@@ -13260,6 +13351,13 @@ static void __devinit tg3_get_5720_nvram
+ /* Chips other than 5700/5701 use the NVRAM for fetching info. */
+ static void __devinit tg3_nvram_init(struct tg3 *tp)
+ {
++ if (tg3_flag(tp, IS_SSB_CORE)) {
++ /* No NVRAM and EEPROM on the SSB Broadcom GigE core. */
++ tg3_flag_clear(tp, NVRAM);
++ tg3_flag_clear(tp, NVRAM_BUFFERED);
++ return;
++ }
++
+ tw32_f(GRC_EEPROM_ADDR,
+ (EEPROM_ADDR_FSM_RESET |
+ (EEPROM_DEFAULT_CLOCK_PERIOD <<
+@@ -13752,10 +13850,19 @@ static int __devinit tg3_phy_probe(struc
+ * subsys device table.
+ */
+ p = tg3_lookup_by_subsys(tp);
+- if (!p)
++ if (p) {
++ tp->phy_id = p->phy_id;
++ } else if (!tg3_flag(tp, IS_SSB_CORE)) {
++ /* For now we saw the IDs 0xbc050cd0,
++ * 0xbc050f80 and 0xbc050c30 on devices
++ * connected to an BCM4785 and there are
++ * probably more. Just assume that the phy is
++ * supported when it is connected to a SSB core
++ * for now.
++ */
+ return -ENODEV;
++ }
+
+- tp->phy_id = p->phy_id;
+ if (!tp->phy_id ||
+ tp->phy_id == TG3_PHY_ID_BCM8002)
+ tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
+@@ -14765,6 +14872,11 @@ static int __devinit tg3_get_invariants(
+ }
+ }
+
++ if (tg3_flag(tp, FLUSH_POSTED_WRITES)) {
++ tp->write32_tx_mbox = tg3_write_flush_reg32;
++ tp->write32_rx_mbox = tg3_write_flush_reg32;
++ }
++
+ /* Get eeprom hw config before calling tg3_set_power_state().
+ * In particular, the TG3_FLAG_IS_NIC flag must be
+ * determined before calling tg3_set_power_state() so that
+@@ -15174,6 +15286,10 @@ static int __devinit tg3_get_device_addr
+ }
+
+ if (!is_valid_ether_addr(&dev->dev_addr[0])) {
++ if (tg3_flag(tp, IS_SSB_CORE))
++ ssb_gige_get_macaddr(tp->pdev, &dev->dev_addr[0]);
++ }
++ if (!is_valid_ether_addr(&dev->dev_addr[0])) {
+ #ifdef CONFIG_SPARC
+ if (!tg3_get_default_macaddr_sparc(tp))
+ return 0;
+@@ -15458,7 +15574,8 @@ static int __devinit tg3_test_dma(struct
+ if (tg3_flag(tp, 40BIT_DMA_BUG) &&
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
+ tp->dma_rwctrl |= 0x8000;
+- else if (ccval == 0x6 || ccval == 0x7)
++ else if ((ccval == 0x6 || ccval == 0x7) ||
++ tg3_flag(tp, ONE_DMA_AT_ONCE))
+ tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
+
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
+@@ -15820,6 +15937,17 @@ static int __devinit tg3_init_one(struct
+ tp->msg_enable = tg3_debug;
+ else
+ tp->msg_enable = TG3_DEF_MSG_ENABLE;
++ if (pdev_is_ssb_gige_core(pdev)) {
++ tg3_flag_set(tp, IS_SSB_CORE);
++ if (ssb_gige_must_flush_posted_writes(pdev))
++ tg3_flag_set(tp, FLUSH_POSTED_WRITES);
++ if (ssb_gige_one_dma_at_once(pdev))
++ tg3_flag_set(tp, ONE_DMA_AT_ONCE);
++ if (ssb_gige_have_roboswitch(pdev))
++ tg3_flag_set(tp, ROBOSWITCH);
++ if (ssb_gige_is_rgmii(pdev))
++ tg3_flag_set(tp, RGMII_MODE);
++ }
+
+ /* The word/byte swap controls here control register access byte
+ * swapping. DMA data byte swapping is controlled in the GRC_MODE
+--- a/drivers/net/ethernet/broadcom/tg3.h
++++ b/drivers/net/ethernet/broadcom/tg3.h
+@@ -2973,6 +2973,11 @@ enum TG3_FLAGS {
+ TG3_FLAG_57765_PLUS,
+ TG3_FLAG_57765_CLASS,
+ TG3_FLAG_5717_PLUS,
++ TG3_FLAG_IS_SSB_CORE,
++ TG3_FLAG_FLUSH_POSTED_WRITES,
++ TG3_FLAG_ROBOSWITCH,
++ TG3_FLAG_ONE_DMA_AT_ONCE,
++ TG3_FLAG_RGMII_MODE,
+
+ /* Add new flags before this comment and TG3_FLAG_NUMBER_OF_FLAGS */
+ TG3_FLAG_NUMBER_OF_FLAGS, /* Last entry in enum TG3_FLAGS */
+--- a/include/linux/pci_ids.h
++++ b/include/linux/pci_ids.h
+@@ -2121,6 +2121,7 @@
+ #define PCI_DEVICE_ID_TIGON3_5754M 0x1672
+ #define PCI_DEVICE_ID_TIGON3_5755M 0x1673
+ #define PCI_DEVICE_ID_TIGON3_5756 0x1674
++#define PCI_DEVICE_ID_TIGON3_5750 0x1676
+ #define PCI_DEVICE_ID_TIGON3_5751 0x1677
+ #define PCI_DEVICE_ID_TIGON3_5715 0x1678
+ #define PCI_DEVICE_ID_TIGON3_5715S 0x1679
+--- a/include/linux/ssb/ssb_driver_gige.h
++++ b/include/linux/ssb/ssb_driver_gige.h
+@@ -97,21 +97,12 @@ static inline bool ssb_gige_must_flush_p
+ return 0;
+ }
+
+-#ifdef CONFIG_BCM47XX
+-#include <asm/mach-bcm47xx/nvram.h>
+-/* Get the device MAC address */
+-static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
+-{
+- char buf[20];
+- if (nvram_getenv("et0macaddr", buf, sizeof(buf)) < 0)
+- return;
+- nvram_parse_macaddr(buf, macaddr);
+-}
+-#else
+ static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
+ {
++ struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
++
++ memcpy(macaddr, dev->dev->bus->sprom.et0mac, 6);
+ }
+-#endif
+
+ extern int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
+ struct pci_dev *pdev);
+@@ -175,6 +166,9 @@ static inline bool ssb_gige_must_flush_p
+ {
+ return 0;
+ }
++static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
++{
++}
+
+ #endif /* CONFIG_SSB_DRIVER_GIGE */
+ #endif /* LINUX_SSB_DRIVER_GIGE_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 05:26:26 +0000