From: Matt Carlson Date: Wed, 25 Feb 2009 14:24:28 +0000 (+0000) Subject: tg3: Eliminate nvram routine forward declarations X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ffbcfed441b9ba74ce77f215eed6925f6a0b82a3;p=openwrt%2Fstaging%2Fblogic.git tg3: Eliminate nvram routine forward declarations This patch moves all NVRAM routines earlier in the source file to eliminate forward declarations. Signed-off-by: Matt Carlson Signed-off-by: Benjamin Li Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index ce29097cc759..d32b3efb2175 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -2050,8 +2050,6 @@ static int tg3_setup_phy(struct tg3 *, int); static void tg3_write_sig_post_reset(struct tg3 *, int); static int tg3_halt_cpu(struct tg3 *, u32); -static int tg3_nvram_lock(struct tg3 *); -static void tg3_nvram_unlock(struct tg3 *); static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power) { @@ -2107,6 +2105,197 @@ static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power) tg3_writephy(tp, MII_BMCR, BMCR_PDOWN); } +/* tp->lock is held. */ +static int tg3_nvram_lock(struct tg3 *tp) +{ + if (tp->tg3_flags & TG3_FLAG_NVRAM) { + int i; + + if (tp->nvram_lock_cnt == 0) { + tw32(NVRAM_SWARB, SWARB_REQ_SET1); + for (i = 0; i < 8000; i++) { + if (tr32(NVRAM_SWARB) & SWARB_GNT1) + break; + udelay(20); + } + if (i == 8000) { + tw32(NVRAM_SWARB, SWARB_REQ_CLR1); + return -ENODEV; + } + } + tp->nvram_lock_cnt++; + } + return 0; +} + +/* tp->lock is held. */ +static void tg3_nvram_unlock(struct tg3 *tp) +{ + if (tp->tg3_flags & TG3_FLAG_NVRAM) { + if (tp->nvram_lock_cnt > 0) + tp->nvram_lock_cnt--; + if (tp->nvram_lock_cnt == 0) + tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1); + } +} + +/* tp->lock is held. */ +static void tg3_enable_nvram_access(struct tg3 *tp) +{ + if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) && + !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) { + u32 nvaccess = tr32(NVRAM_ACCESS); + + tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE); + } +} + +/* tp->lock is held. */ +static void tg3_disable_nvram_access(struct tg3 *tp) +{ + if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) && + !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) { + u32 nvaccess = tr32(NVRAM_ACCESS); + + tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE); + } +} + +static int tg3_nvram_read_using_eeprom(struct tg3 *tp, + u32 offset, u32 *val) +{ + u32 tmp; + int i; + + if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0) + return -EINVAL; + + tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK | + EEPROM_ADDR_DEVID_MASK | + EEPROM_ADDR_READ); + tw32(GRC_EEPROM_ADDR, + tmp | + (0 << EEPROM_ADDR_DEVID_SHIFT) | + ((offset << EEPROM_ADDR_ADDR_SHIFT) & + EEPROM_ADDR_ADDR_MASK) | + EEPROM_ADDR_READ | EEPROM_ADDR_START); + + for (i = 0; i < 1000; i++) { + tmp = tr32(GRC_EEPROM_ADDR); + + if (tmp & EEPROM_ADDR_COMPLETE) + break; + msleep(1); + } + if (!(tmp & EEPROM_ADDR_COMPLETE)) + return -EBUSY; + + *val = tr32(GRC_EEPROM_DATA); + return 0; +} + +#define NVRAM_CMD_TIMEOUT 10000 + +static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd) +{ + int i; + + tw32(NVRAM_CMD, nvram_cmd); + for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) { + udelay(10); + if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) { + udelay(10); + break; + } + } + + if (i == NVRAM_CMD_TIMEOUT) + return -EBUSY; + + return 0; +} + +static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr) +{ + if ((tp->tg3_flags & TG3_FLAG_NVRAM) && + (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) && + (tp->tg3_flags2 & TG3_FLG2_FLASH) && + !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) && + (tp->nvram_jedecnum == JEDEC_ATMEL)) + + addr = ((addr / tp->nvram_pagesize) << + ATMEL_AT45DB0X1B_PAGE_POS) + + (addr % tp->nvram_pagesize); + + return addr; +} + +static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr) +{ + if ((tp->tg3_flags & TG3_FLAG_NVRAM) && + (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) && + (tp->tg3_flags2 & TG3_FLG2_FLASH) && + !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) && + (tp->nvram_jedecnum == JEDEC_ATMEL)) + + addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) * + tp->nvram_pagesize) + + (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1)); + + return addr; +} + +static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val) +{ + int ret; + + if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) + return tg3_nvram_read_using_eeprom(tp, offset, val); + + offset = tg3_nvram_phys_addr(tp, offset); + + if (offset > NVRAM_ADDR_MSK) + return -EINVAL; + + ret = tg3_nvram_lock(tp); + if (ret) + return ret; + + tg3_enable_nvram_access(tp); + + tw32(NVRAM_ADDR, offset); + ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO | + NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE); + + if (ret == 0) + *val = swab32(tr32(NVRAM_RDDATA)); + + tg3_disable_nvram_access(tp); + + tg3_nvram_unlock(tp); + + return ret; +} + +static int tg3_nvram_read_swab(struct tg3 *tp, u32 offset, u32 *val) +{ + int err; + u32 tmp; + + err = tg3_nvram_read(tp, offset, &tmp); + *val = swab32(tmp); + return err; +} + +static int tg3_nvram_read_le(struct tg3 *tp, u32 offset, __le32 *val) +{ + u32 v; + int res = tg3_nvram_read(tp, offset, &v); + if (!res) + *val = cpu_to_le32(v); + return res; +} + /* tp->lock is held. */ static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1) { @@ -5638,62 +5827,6 @@ static int tg3_abort_hw(struct tg3 *tp, int silent) return err; } -/* tp->lock is held. */ -static int tg3_nvram_lock(struct tg3 *tp) -{ - if (tp->tg3_flags & TG3_FLAG_NVRAM) { - int i; - - if (tp->nvram_lock_cnt == 0) { - tw32(NVRAM_SWARB, SWARB_REQ_SET1); - for (i = 0; i < 8000; i++) { - if (tr32(NVRAM_SWARB) & SWARB_GNT1) - break; - udelay(20); - } - if (i == 8000) { - tw32(NVRAM_SWARB, SWARB_REQ_CLR1); - return -ENODEV; - } - } - tp->nvram_lock_cnt++; - } - return 0; -} - -/* tp->lock is held. */ -static void tg3_nvram_unlock(struct tg3 *tp) -{ - if (tp->tg3_flags & TG3_FLAG_NVRAM) { - if (tp->nvram_lock_cnt > 0) - tp->nvram_lock_cnt--; - if (tp->nvram_lock_cnt == 0) - tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1); - } -} - -/* tp->lock is held. */ -static void tg3_enable_nvram_access(struct tg3 *tp) -{ - if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) && - !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) { - u32 nvaccess = tr32(NVRAM_ACCESS); - - tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE); - } -} - -/* tp->lock is held. */ -static void tg3_disable_nvram_access(struct tg3 *tp) -{ - if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) && - !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) { - u32 nvaccess = tr32(NVRAM_ACCESS); - - tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE); - } -} - static void tg3_ape_send_event(struct tg3 *tp, u32 event) { int i; @@ -8394,10 +8527,6 @@ static int tg3_get_eeprom_len(struct net_device *dev) return tp->nvram_size; } -static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val); -static int tg3_nvram_read_le(struct tg3 *tp, u32 offset, __le32 *val); -static int tg3_nvram_read_swab(struct tg3 *tp, u32 offset, u32 *val); - static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data) { struct tg3 *tp = netdev_priv(dev); @@ -10511,141 +10640,6 @@ static void __devinit tg3_nvram_init(struct tg3 *tp) } } -static int tg3_nvram_read_using_eeprom(struct tg3 *tp, - u32 offset, u32 *val) -{ - u32 tmp; - int i; - - if (offset > EEPROM_ADDR_ADDR_MASK || - (offset % 4) != 0) - return -EINVAL; - - tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK | - EEPROM_ADDR_DEVID_MASK | - EEPROM_ADDR_READ); - tw32(GRC_EEPROM_ADDR, - tmp | - (0 << EEPROM_ADDR_DEVID_SHIFT) | - ((offset << EEPROM_ADDR_ADDR_SHIFT) & - EEPROM_ADDR_ADDR_MASK) | - EEPROM_ADDR_READ | EEPROM_ADDR_START); - - for (i = 0; i < 1000; i++) { - tmp = tr32(GRC_EEPROM_ADDR); - - if (tmp & EEPROM_ADDR_COMPLETE) - break; - msleep(1); - } - if (!(tmp & EEPROM_ADDR_COMPLETE)) - return -EBUSY; - - *val = tr32(GRC_EEPROM_DATA); - return 0; -} - -#define NVRAM_CMD_TIMEOUT 10000 - -static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd) -{ - int i; - - tw32(NVRAM_CMD, nvram_cmd); - for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) { - udelay(10); - if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) { - udelay(10); - break; - } - } - if (i == NVRAM_CMD_TIMEOUT) { - return -EBUSY; - } - return 0; -} - -static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr) -{ - if ((tp->tg3_flags & TG3_FLAG_NVRAM) && - (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) && - (tp->tg3_flags2 & TG3_FLG2_FLASH) && - !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) && - (tp->nvram_jedecnum == JEDEC_ATMEL)) - - addr = ((addr / tp->nvram_pagesize) << - ATMEL_AT45DB0X1B_PAGE_POS) + - (addr % tp->nvram_pagesize); - - return addr; -} - -static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr) -{ - if ((tp->tg3_flags & TG3_FLAG_NVRAM) && - (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) && - (tp->tg3_flags2 & TG3_FLG2_FLASH) && - !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) && - (tp->nvram_jedecnum == JEDEC_ATMEL)) - - addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) * - tp->nvram_pagesize) + - (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1)); - - return addr; -} - -static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val) -{ - int ret; - - if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) - return tg3_nvram_read_using_eeprom(tp, offset, val); - - offset = tg3_nvram_phys_addr(tp, offset); - - if (offset > NVRAM_ADDR_MSK) - return -EINVAL; - - ret = tg3_nvram_lock(tp); - if (ret) - return ret; - - tg3_enable_nvram_access(tp); - - tw32(NVRAM_ADDR, offset); - ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO | - NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE); - - if (ret == 0) - *val = swab32(tr32(NVRAM_RDDATA)); - - tg3_disable_nvram_access(tp); - - tg3_nvram_unlock(tp); - - return ret; -} - -static int tg3_nvram_read_le(struct tg3 *tp, u32 offset, __le32 *val) -{ - u32 v; - int res = tg3_nvram_read(tp, offset, &v); - if (!res) - *val = cpu_to_le32(v); - return res; -} - -static int tg3_nvram_read_swab(struct tg3 *tp, u32 offset, u32 *val) -{ - int err; - u32 tmp; - - err = tg3_nvram_read(tp, offset, &tmp); - *val = swab32(tmp); - return err; -} - static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp, u32 offset, u32 len, u8 *buf) {