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path: root/target/linux/brcm47xx/patches-2.6.38/700-ssb-gigabit-ethernet-driver.patch
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Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.38/700-ssb-gigabit-ethernet-driver.patch')
-rw-r--r--target/linux/brcm47xx/patches-2.6.38/700-ssb-gigabit-ethernet-driver.patch328
1 files changed, 328 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.38/700-ssb-gigabit-ethernet-driver.patch b/target/linux/brcm47xx/patches-2.6.38/700-ssb-gigabit-ethernet-driver.patch
new file mode 100644
index 0000000000..c614a3f44a
--- /dev/null
+++ b/target/linux/brcm47xx/patches-2.6.38/700-ssb-gigabit-ethernet-driver.patch
@@ -0,0 +1,328 @@
+--- a/drivers/net/tg3.c
++++ b/drivers/net/tg3.c
+@@ -43,6 +43,7 @@
+ #include <linux/prefetch.h>
+ #include <linux/dma-mapping.h>
+ #include <linux/firmware.h>
++#include <linux/ssb/ssb_driver_gige.h>
+
+ #include <net/checksum.h>
+ #include <net/ip.h>
+@@ -488,8 +489,9 @@ 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 (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
+- !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
++ if ((tp->tg3_flags3 & TG3_FLG3_FLUSH_POSTED_WRITES) ||
++ (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
++ !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND)))
+ tp->read32_mbox(tp, off);
+ }
+
+@@ -499,7 +501,7 @@ static void tg3_write32_tx_mbox(struct t
+ writel(val, mbox);
+ if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
+ writel(val, mbox);
+- if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
++ if ((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) || (tp->tg3_flags3 & TG3_FLG3_FLUSH_POSTED_WRITES))
+ readl(mbox);
+ }
+
+@@ -782,7 +784,7 @@ 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;
+@@ -796,7 +798,7 @@ 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);
+@@ -831,7 +833,12 @@ 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;
+@@ -847,7 +854,7 @@ static int tg3_writephy(struct tg3 *tp,
+ udelay(80);
+ }
+
+- 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);
+@@ -880,6 +887,11 @@ 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_bmcr_reset(struct tg3 *tp)
+ {
+ u32 phy_control;
+@@ -2467,6 +2479,9 @@ static int tg3_nvram_read(struct tg3 *tp
+ {
+ int ret;
+
++ if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE)
++ return -ENODEV;
++
+ if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
+ return tg3_nvram_read_using_eeprom(tp, offset, val);
+
+@@ -2791,8 +2806,10 @@ static int tg3_power_down_prepare(struct
+ tg3_frob_aux_power(tp);
+
+ /* 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 ((tp->phy_id & TG3_PHY_ID_MASK) != TG3_PHY_ID_BCM5750_2 &&
++ /* !!! FIXME !!! */
++ ((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);
+@@ -3311,6 +3328,14 @@ relink:
+ if (current_link_up == 0 || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
+ tg3_phy_copper_begin(tp);
+
++ if (tp->tg3_flags3 & TG3_FLG3_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))
+@@ -6887,6 +6912,11 @@ static int tg3_poll_fw(struct tg3 *tp)
+ int i;
+ u32 val;
+
++ if (tp->tg3_flags3 & TG3_FLG3_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++) {
+@@ -7177,6 +7207,14 @@ static int tg3_chip_reset(struct tg3 *tp
+ tw32(0x5000, 0x400);
+ }
+
++ if (tp->tg3_flags3 & TG3_FLG3_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) {
+@@ -7331,9 +7369,12 @@ static int tg3_halt_cpu(struct tg3 *tp,
+ return -ENODEV;
+ }
+
+- /* Clear firmware's nvram arbitration. */
+- if (tp->tg3_flags & TG3_FLAG_NVRAM)
+- tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
++ if (!(tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE)) {
++ /* Clear firmware's nvram arbitration. */
++ if (tp->tg3_flags & TG3_FLAG_NVRAM)
++ tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
++ }
++
+ return 0;
+ }
+
+@@ -7396,6 +7437,11 @@ static int tg3_load_5701_a0_firmware_fix
+ const __be32 *fw_data;
+ int err, i;
+
++ if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
++ /* We don't use firmware. */
++ return 0;
++ }
++
+ fw_data = (void *)tp->fw->data;
+
+ /* Firmware blob starts with version numbers, followed by
+@@ -7454,6 +7500,11 @@ static int tg3_load_tso_firmware(struct
+ unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
+ int err, i;
+
++ if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
++ /* We don't use firmware. */
++ return 0;
++ }
++
+ if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
+ return 0;
+
+@@ -8671,6 +8722,11 @@ static void tg3_timer(unsigned long __op
+
+ spin_lock(&tp->lock);
+
++ if (tp->tg3_flags3 & TG3_FLG3_FLUSH_POSTED_WRITES) {
++ /* BCM4785: Flush posted writes from GbE to host memory. */
++ tr32(HOSTCC_MODE);
++ }
++
+ if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
+ /* All of this garbage is because when using non-tagged
+ * IRQ status the mailbox/status_block protocol the chip
+@@ -10341,6 +10397,11 @@ static int tg3_test_nvram(struct tg3 *tp
+ if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
+ return 0;
+
++ if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
++ /* We don't have NVRAM. */
++ return 0;
++ }
++
+ if (tg3_nvram_read(tp, 0, &magic) != 0)
+ return -EIO;
+
+@@ -11164,7 +11225,7 @@ static int tg3_ioctl(struct net_device *
+ 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;
+@@ -11182,7 +11243,7 @@ static int tg3_ioctl(struct net_device *
+ 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;
+@@ -11802,6 +11863,12 @@ static void __devinit tg3_get_5717_nvram
+ /* Chips other than 5700/5701 use the NVRAM for fetching info. */
+ static void __devinit tg3_nvram_init(struct tg3 *tp)
+ {
++ if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
++ /* No NVRAM and EEPROM on the SSB Broadcom GigE core. */
++ tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
++ return;
++ }
++
+ tw32_f(GRC_EEPROM_ADDR,
+ (EEPROM_ADDR_FSM_RESET |
+ (EEPROM_DEFAULT_CLOCK_PERIOD <<
+@@ -12065,6 +12132,9 @@ static int tg3_nvram_write_block(struct
+ {
+ int ret;
+
++ if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE)
++ return -ENODEV;
++
+ if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
+ tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
+ ~GRC_LCLCTRL_GPIO_OUTPUT1);
+@@ -13527,6 +13597,11 @@ static int __devinit tg3_get_invariants(
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
+ tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
+
++ if (tp->tg3_flags3 & TG3_FLG3_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_FLG2_IS_NIC flag must be
+ * determined before calling tg3_set_power_state() so that
+@@ -13924,6 +13999,10 @@ static int __devinit tg3_get_device_addr
+ }
+
+ if (!is_valid_ether_addr(&dev->dev_addr[0])) {
++ if (tp->tg3_flags3 & TG3_FLG3_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;
+@@ -14441,6 +14520,7 @@ static char * __devinit tg3_phy_string(s
+ case TG3_PHY_ID_BCM5704: return "5704";
+ case TG3_PHY_ID_BCM5705: return "5705";
+ case TG3_PHY_ID_BCM5750: return "5750";
++ case TG3_PHY_ID_BCM5750_2: return "5750-2";
+ case TG3_PHY_ID_BCM5752: return "5752";
+ case TG3_PHY_ID_BCM5714: return "5714";
+ case TG3_PHY_ID_BCM5780: return "5780";
+@@ -14644,6 +14724,13 @@ 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)) {
++ tp->tg3_flags3 |= TG3_FLG3_IS_SSB_CORE;
++ if (ssb_gige_must_flush_posted_writes(pdev))
++ tp->tg3_flags3 |= TG3_FLG3_FLUSH_POSTED_WRITES;
++ if (ssb_gige_have_roboswitch(pdev))
++ tp->tg3_flags3 |= TG3_FLG3_ROBOSWITCH;
++ }
+
+ /* The word/byte swap controls here control register access byte
+ * swapping. DMA data byte swapping is controlled in the GRC_MODE
+--- a/drivers/net/tg3.h
++++ b/drivers/net/tg3.h
+@@ -2060,6 +2060,9 @@
+ #define NIC_SRAM_RGMII_INBAND_DISABLE 0x00000004
+ #define NIC_SRAM_RGMII_EXT_IBND_RX_EN 0x00000008
+ #define NIC_SRAM_RGMII_EXT_IBND_TX_EN 0x00000010
++#define TG3_FLG3_IS_SSB_CORE 0x00000800
++#define TG3_FLG3_FLUSH_POSTED_WRITES 0x00001000
++#define TG3_FLG3_ROBOSWITCH 0x00002000
+
+ #define NIC_SRAM_RX_MINI_BUFFER_DESC 0x00001000
+
+@@ -2962,6 +2965,7 @@ struct tg3 {
+ #define TG3_PHY_ID_BCM5704 0x60008190
+ #define TG3_PHY_ID_BCM5705 0x600081a0
+ #define TG3_PHY_ID_BCM5750 0x60008180
++#define TG3_PHY_ID_BCM5750_2 0xbc050cd0
+ #define TG3_PHY_ID_BCM5752 0x60008100
+ #define TG3_PHY_ID_BCM5714 0x60008340
+ #define TG3_PHY_ID_BCM5780 0x60008350
+@@ -2998,7 +3002,7 @@ struct tg3 {
+ (X) == TG3_PHY_ID_BCM5906 || (X) == TG3_PHY_ID_BCM5761 || \
+ (X) == TG3_PHY_ID_BCM5718C || (X) == TG3_PHY_ID_BCM5718S || \
+ (X) == TG3_PHY_ID_BCM57765 || (X) == TG3_PHY_ID_BCM5719C || \
+- (X) == TG3_PHY_ID_BCM8002)
++ (X) == TG3_PHY_ID_BCM8002 || (X) == TG3_PHY_ID_BCM5750_2)
+
+ u32 phy_flags;
+ #define TG3_PHYFLG_IS_LOW_POWER 0x00000001