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提交 ffbcfed4 编写于 作者: M Matt Carlson 提交者： David S. Miller
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tg3: Eliminate nvram routine forward declarations 

This patch moves all NVRAM routines earlier in the source file to
eliminate forward declarations.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NBenjamin Li <benli@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 844b3eed
隐藏空白更改
内联 并排
Showing with 191 addition and 197 deletion
drivers/net/tg3.c
浏览文件 @ ffbcfed4
......@@ -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)
{
......
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