提交 8c99e7b0 编写于 作者: Y Yaniv Rosner 提交者: David S. Miller

bnx2x: Pause settings

Pause settings
- 1G pause was not working due to missing write to the emac block
  (TX_MODE_FLOW_EN)
- The flow control should use the negotiated result (after autoneg) so
  we should save both the requested autoneg and the result
- The HW credits with flow control at 1G speed were not optimized and
  caused low throughput
- It is recommended to turn off flow control if the MTU is bigger than
  5000B due to internal buffers size
Signed-off-by: NYaniv Rosner <yanivr@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 57963ed9
......@@ -38,7 +38,6 @@
#define ETH_MAX_JUMBO_PACKET_SIZE 9600
#define MDIO_ACCESS_TIMEOUT 1000
#define BMAC_CONTROL_RX_ENABLE 2
#define MAX_MTU_SIZE 5000
/***********************************************************/
/* Shortcut definitions */
......@@ -298,11 +297,13 @@ static u8 bnx2x_emac_enable(struct link_params *params,
EMAC_RX_MODE_FLOW_EN);
bnx2x_bits_dis(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
EMAC_TX_MODE_EXT_PAUSE_EN);
(EMAC_TX_MODE_EXT_PAUSE_EN |
EMAC_TX_MODE_FLOW_EN));
if (vars->flow_ctrl & FLOW_CTRL_TX)
bnx2x_bits_en(bp, emac_base +
EMAC_REG_EMAC_TX_MODE,
EMAC_TX_MODE_EXT_PAUSE_EN);
(EMAC_TX_MODE_EXT_PAUSE_EN |
EMAC_TX_MODE_FLOW_EN));
}
/* KEEP_VLAN_TAG, promiscuous */
......@@ -591,9 +592,9 @@ void bnx2x_link_status_update(struct link_params *params,
vars->flow_ctrl &= ~FLOW_CTRL_RX;
if (vars->phy_flags & PHY_XGXS_FLAG) {
if (params->req_line_speed &&
((params->req_line_speed == SPEED_10) ||
(params->req_line_speed == SPEED_100))) {
if (vars->line_speed &&
((vars->line_speed == SPEED_10) ||
(vars->line_speed == SPEED_100))) {
vars->phy_flags |= PHY_SGMII_FLAG;
} else {
vars->phy_flags &= ~PHY_SGMII_FLAG;
......@@ -670,7 +671,6 @@ static u8 bnx2x_pbf_update(struct link_params *params, u32 flow_ctrl,
u8 port = params->port;
u32 init_crd, crd;
u32 count = 1000;
u32 pause = 0;
/* disable port */
REG_WR(bp, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x1);
......@@ -693,33 +693,25 @@ static u8 bnx2x_pbf_update(struct link_params *params, u32 flow_ctrl,
return -EINVAL;
}
if (flow_ctrl & FLOW_CTRL_RX)
pause = 1;
REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, pause);
if (pause) {
if (flow_ctrl & FLOW_CTRL_RX ||
line_speed == SPEED_10 ||
line_speed == SPEED_100 ||
line_speed == SPEED_1000 ||
line_speed == SPEED_2500) {
REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 1);
/* update threshold */
REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, 0);
/* update init credit */
init_crd = 778; /* (800-18-4) */
init_crd = 778; /* (800-18-4) */
} else {
u32 thresh = (ETH_MAX_JUMBO_PACKET_SIZE +
ETH_OVREHEAD)/16;
REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
/* update threshold */
REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, thresh);
/* update init credit */
switch (line_speed) {
case SPEED_10:
case SPEED_100:
case SPEED_1000:
init_crd = thresh + 55 - 22;
break;
case SPEED_2500:
init_crd = thresh + 138 - 22;
break;
case SPEED_10000:
init_crd = thresh + 553 - 22;
break;
......@@ -1114,7 +1106,7 @@ static void bnx2x_set_autoneg(struct link_params *params,
MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
/* CL37 Autoneg Enabled */
if (params->req_line_speed == SPEED_AUTO_NEG)
if (vars->line_speed == SPEED_AUTO_NEG)
reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_AN_EN;
else /* CL37 Autoneg Disabled */
reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
......@@ -1132,7 +1124,7 @@ static void bnx2x_set_autoneg(struct link_params *params,
MDIO_REG_BANK_SERDES_DIGITAL,
MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, &reg_val);
reg_val &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_SIGNAL_DETECT_EN;
if (params->req_line_speed == SPEED_AUTO_NEG)
if (vars->line_speed == SPEED_AUTO_NEG)
reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
else
reg_val &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
......@@ -1148,7 +1140,7 @@ static void bnx2x_set_autoneg(struct link_params *params,
MDIO_REG_BANK_BAM_NEXT_PAGE,
MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
&reg_val);
if (params->req_line_speed == SPEED_AUTO_NEG) {
if (vars->line_speed == SPEED_AUTO_NEG) {
/* Enable BAM aneg Mode and TetonII aneg Mode */
reg_val |= (MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
......@@ -1164,7 +1156,7 @@ static void bnx2x_set_autoneg(struct link_params *params,
reg_val);
/* Enable Clause 73 Aneg */
if ((params->req_line_speed == SPEED_AUTO_NEG) &&
if ((vars->line_speed == SPEED_AUTO_NEG) &&
(SUPPORT_CL73)) {
/* Enable BAM Station Manager */
......@@ -1226,7 +1218,8 @@ static void bnx2x_set_autoneg(struct link_params *params,
}
/* program SerDes, forced speed */
static void bnx2x_program_serdes(struct link_params *params)
static void bnx2x_program_serdes(struct link_params *params,
struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
u16 reg_val;
......@@ -1248,28 +1241,35 @@ static void bnx2x_program_serdes(struct link_params *params)
/* program speed
- needed only if the speed is greater than 1G (2.5G or 10G) */
if (!((params->req_line_speed == SPEED_1000) ||
(params->req_line_speed == SPEED_100) ||
(params->req_line_speed == SPEED_10))) {
CL45_RD_OVER_CL22(bp, params->port,
CL45_RD_OVER_CL22(bp, params->port,
params->phy_addr,
MDIO_REG_BANK_SERDES_DIGITAL,
MDIO_SERDES_DIGITAL_MISC1, &reg_val);
/* clearing the speed value before setting the right speed */
reg_val &= ~MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_MASK;
/* clearing the speed value before setting the right speed */
DP(NETIF_MSG_LINK, "MDIO_REG_BANK_SERDES_DIGITAL = 0x%x\n", reg_val);
reg_val &= ~(MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_MASK |
MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
if (!((vars->line_speed == SPEED_1000) ||
(vars->line_speed == SPEED_100) ||
(vars->line_speed == SPEED_10))) {
reg_val |= (MDIO_SERDES_DIGITAL_MISC1_REFCLK_SEL_156_25M |
MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
if (params->req_line_speed == SPEED_10000)
if (vars->line_speed == SPEED_10000)
reg_val |=
MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_10G_CX4;
if (params->req_line_speed == SPEED_13000)
if (vars->line_speed == SPEED_13000)
reg_val |=
MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_13G;
CL45_WR_OVER_CL22(bp, params->port,
}
CL45_WR_OVER_CL22(bp, params->port,
params->phy_addr,
MDIO_REG_BANK_SERDES_DIGITAL,
MDIO_SERDES_DIGITAL_MISC1, reg_val);
}
}
static void bnx2x_set_brcm_cl37_advertisment(struct link_params *params)
......@@ -1295,48 +1295,49 @@ static void bnx2x_set_brcm_cl37_advertisment(struct link_params *params)
MDIO_OVER_1G_UP3, 0);
}
static void bnx2x_set_ieee_aneg_advertisment(struct link_params *params,
u32 *ieee_fc)
static void bnx2x_calc_ieee_aneg_adv(struct link_params *params, u32 *ieee_fc)
{
struct bnx2x *bp = params->bp;
/* for AN, we are always publishing full duplex */
u16 an_adv = MDIO_COMBO_IEEE0_AUTO_NEG_ADV_FULL_DUPLEX;
*ieee_fc = MDIO_COMBO_IEEE0_AUTO_NEG_ADV_FULL_DUPLEX;
/* resolve pause mode and advertisement
* Please refer to Table 28B-3 of the 802.3ab-1999 spec */
switch (params->req_flow_ctrl) {
case FLOW_CTRL_AUTO:
if (params->mtu <= MAX_MTU_SIZE) {
an_adv |=
if (params->req_fc_auto_adv == FLOW_CTRL_BOTH) {
*ieee_fc |=
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
} else {
an_adv |=
*ieee_fc |=
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
}
break;
case FLOW_CTRL_TX:
an_adv |=
*ieee_fc |=
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
break;
case FLOW_CTRL_RX:
case FLOW_CTRL_BOTH:
an_adv |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
break;
case FLOW_CTRL_NONE:
default:
an_adv |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE;
*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE;
break;
}
}
*ieee_fc = an_adv;
static void bnx2x_set_ieee_aneg_advertisment(struct link_params *params,
u32 ieee_fc)
{
struct bnx2x *bp = params->bp;
/* for AN, we are always publishing full duplex */
CL45_WR_OVER_CL22(bp, params->port,
params->phy_addr,
MDIO_REG_BANK_COMBO_IEEE0,
MDIO_COMBO_IEEE0_AUTO_NEG_ADV, an_adv);
MDIO_COMBO_IEEE0_AUTO_NEG_ADV, (u16)ieee_fc);
}
static void bnx2x_restart_autoneg(struct link_params *params)
......@@ -1382,7 +1383,8 @@ static void bnx2x_restart_autoneg(struct link_params *params)
}
}
static void bnx2x_initialize_sgmii_process(struct link_params *params)
static void bnx2x_initialize_sgmii_process(struct link_params *params,
struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
u16 control1;
......@@ -1406,7 +1408,7 @@ static void bnx2x_initialize_sgmii_process(struct link_params *params)
control1);
/* if forced speed */
if (!(params->req_line_speed == SPEED_AUTO_NEG)) {
if (!(vars->line_speed == SPEED_AUTO_NEG)) {
/* set speed, disable autoneg */
u16 mii_control;
......@@ -1419,7 +1421,7 @@ static void bnx2x_initialize_sgmii_process(struct link_params *params)
MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK|
MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX);
switch (params->req_line_speed) {
switch (vars->line_speed) {
case SPEED_100:
mii_control |=
MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_100;
......@@ -1433,8 +1435,8 @@ static void bnx2x_initialize_sgmii_process(struct link_params *params)
break;
default:
/* invalid speed for SGMII */
DP(NETIF_MSG_LINK, "Invalid req_line_speed 0x%x\n",
params->req_line_speed);
DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
vars->line_speed);
break;
}
......@@ -1460,20 +1462,20 @@ static void bnx2x_initialize_sgmii_process(struct link_params *params)
*/
static void bnx2x_pause_resolve(struct link_vars *vars, u32 pause_result)
{
switch (pause_result) { /* ASYM P ASYM P */
case 0xb: /* 1 0 1 1 */
{ /* LD LP */
switch (pause_result) { /* ASYM P ASYM P */
case 0xb: /* 1 0 1 1 */
vars->flow_ctrl = FLOW_CTRL_TX;
break;
case 0xe: /* 1 1 1 0 */
case 0xe: /* 1 1 1 0 */
vars->flow_ctrl = FLOW_CTRL_RX;
break;
case 0x5: /* 0 1 0 1 */
case 0x7: /* 0 1 1 1 */
case 0xd: /* 1 1 0 1 */
case 0xf: /* 1 1 1 1 */
case 0x5: /* 0 1 0 1 */
case 0x7: /* 0 1 1 1 */
case 0xd: /* 1 1 0 1 */
case 0xf: /* 1 1 1 1 */
vars->flow_ctrl = FLOW_CTRL_BOTH;
break;
......@@ -1487,8 +1489,8 @@ static u8 bnx2x_ext_phy_resove_fc(struct link_params *params,
{
struct bnx2x *bp = params->bp;
u8 ext_phy_addr;
u16 ld_pause; /* local */
u16 lp_pause; /* link partner */
u16 ld_pause; /* local */
u16 lp_pause; /* link partner */
u16 an_complete; /* AN complete */
u16 pause_result;
u8 ret = 0;
......@@ -1531,6 +1533,28 @@ static u8 bnx2x_ext_phy_resove_fc(struct link_params *params,
DP(NETIF_MSG_LINK, "Ext PHY pause result 0x%x \n",
pause_result);
bnx2x_pause_resolve(vars, pause_result);
if (vars->flow_ctrl == FLOW_CTRL_NONE &&
ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073) {
bnx2x_cl45_read(bp, port,
ext_phy_type,
ext_phy_addr,
MDIO_AN_DEVAD,
MDIO_AN_REG_CL37_FC_LD, &ld_pause);
bnx2x_cl45_read(bp, port,
ext_phy_type,
ext_phy_addr,
MDIO_AN_DEVAD,
MDIO_AN_REG_CL37_FC_LP, &lp_pause);
pause_result = (ld_pause &
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 5;
pause_result |= (lp_pause &
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 7;
bnx2x_pause_resolve(vars, pause_result);
DP(NETIF_MSG_LINK, "Ext PHY CL37 pause result 0x%x \n",
pause_result);
}
}
return ret;
}
......@@ -1573,13 +1597,10 @@ static void bnx2x_flow_ctrl_resolve(struct link_params *params,
(bnx2x_ext_phy_resove_fc(params, vars))) {
return;
} else {
vars->flow_ctrl = params->req_flow_ctrl;
if (vars->flow_ctrl == FLOW_CTRL_AUTO) {
if (params->mtu <= MAX_MTU_SIZE)
vars->flow_ctrl = FLOW_CTRL_BOTH;
else
vars->flow_ctrl = FLOW_CTRL_TX;
}
if (params->req_flow_ctrl == FLOW_CTRL_AUTO)
vars->flow_ctrl = params->req_fc_auto_adv;
else
vars->flow_ctrl = params->req_flow_ctrl;
}
DP(NETIF_MSG_LINK, "flow_ctrl 0x%x\n", vars->flow_ctrl);
}
......@@ -1709,12 +1730,12 @@ static u8 bnx2x_link_settings_status(struct link_params *params,
}
if (vars->flow_ctrl & FLOW_CTRL_TX)
vars->link_status |=
LINK_STATUS_TX_FLOW_CONTROL_ENABLED;
vars->link_status |=
LINK_STATUS_TX_FLOW_CONTROL_ENABLED;
if (vars->flow_ctrl & FLOW_CTRL_RX)
vars->link_status |=
LINK_STATUS_RX_FLOW_CONTROL_ENABLED;
vars->link_status |=
LINK_STATUS_RX_FLOW_CONTROL_ENABLED;
} else { /* link_down */
DP(NETIF_MSG_LINK, "phy link down\n");
......@@ -2286,13 +2307,16 @@ static void bnx2x_ext_phy_set_pause(struct link_params *params,
MDIO_AN_REG_ADV_PAUSE, &val);
val &= ~MDIO_AN_REG_ADV_PAUSE_BOTH;
/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
if (vars->ieee_fc &
if ((vars->ieee_fc &
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
}
if (vars->ieee_fc &
if ((vars->ieee_fc &
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
val |=
MDIO_AN_REG_ADV_PAUSE_PAUSE;
......@@ -2339,7 +2363,7 @@ static void bnx2x_init_internal_phy(struct link_params *params,
bnx2x_set_autoneg(params, vars);
/* program speed and duplex */
bnx2x_program_serdes(params);
bnx2x_program_serdes(params, vars);
} else { /* AN_mode */
DP(NETIF_MSG_LINK, "not SGMII, AN\n");
......@@ -2349,7 +2373,7 @@ static void bnx2x_init_internal_phy(struct link_params *params,
/* program duplex & pause advertisement (for aneg) */
bnx2x_set_ieee_aneg_advertisment(params,
&vars->ieee_fc);
vars->ieee_fc);
/* enable autoneg */
bnx2x_set_autoneg(params, vars);
......@@ -2361,7 +2385,7 @@ static void bnx2x_init_internal_phy(struct link_params *params,
} else { /* SGMII mode */
DP(NETIF_MSG_LINK, "SGMII\n");
bnx2x_initialize_sgmii_process(params);
bnx2x_initialize_sgmii_process(params, vars);
}
}
......@@ -2481,7 +2505,7 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars)
ext_phy_type,
ext_phy_addr,
MDIO_AN_DEVAD,
MDIO_AN_REG_CL37_FD,
MDIO_AN_REG_CL37_FC_LP,
0x0020);
/* Enable CL37 AN */
bnx2x_cl45_write(bp, params->port,
......@@ -2657,13 +2681,13 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars)
ext_phy_type,
ext_phy_addr,
MDIO_AN_DEVAD,
MDIO_AN_REG_CL37_CL73, 0x040c);
MDIO_AN_REG_CL37_FC_LD, 0x040c);
/* Add support for CL37 (passive mode) II */
bnx2x_cl45_write(bp, params->port,
ext_phy_type,
ext_phy_addr,
MDIO_AN_DEVAD,
MDIO_AN_REG_CL37_FD, 0x20);
MDIO_AN_REG_CL37_FC_LD, 0x20);
/* Add support for CL37 (passive mode) III */
bnx2x_cl45_write(bp, params->port,
ext_phy_type,
......@@ -2785,7 +2809,7 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars)
static u8 bnx2x_ext_phy_is_link_up(struct link_params *params,
struct link_vars *vars)
struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
u32 ext_phy_type;
......@@ -2826,6 +2850,8 @@ static u8 bnx2x_ext_phy_is_link_up(struct link_params *params,
MDIO_PMA_REG_RX_SD, &rx_sd);
DP(NETIF_MSG_LINK, "8705 rx_sd 0x%x\n", rx_sd);
ext_phy_link_up = (rx_sd & 0x1);
if (ext_phy_link_up)
vars->line_speed = SPEED_10000;
break;
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
......@@ -3734,7 +3760,7 @@ static u8 bnx2x_link_initialize(struct link_params *params,
req_line_speed*/
vars->line_speed = params->req_line_speed;
bnx2x_set_ieee_aneg_advertisment(params, &vars->ieee_fc);
bnx2x_calc_ieee_aneg_adv(params, &vars->ieee_fc);
/* init ext phy and enable link state int */
non_ext_phy = ((ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) ||
......
......@@ -58,11 +58,13 @@ struct link_params {
u16 req_duplex;
u16 req_flow_ctrl;
u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
req_flow_ctrl is set to AUTO */
u16 req_line_speed; /* Also determine AutoNeg */
/* Device parameters */
u8 mac_addr[6];
u16 mtu;
/* shmem parameters */
......
......@@ -1946,7 +1946,14 @@ static u8 bnx2x_initial_phy_init(struct bnx2x *bp)
u8 rc;
/* Initialize link parameters structure variables */
bp->link_params.mtu = bp->dev->mtu;
/* It is recommended to turn off RX FC for jumbo frames
for better performance */
if (IS_E1HMF(bp))
bp->link_params.req_fc_auto_adv = FLOW_CTRL_BOTH;
else if (bp->dev->mtu > 5000)
bp->link_params.req_fc_auto_adv = FLOW_CTRL_TX;
else
bp->link_params.req_fc_auto_adv = FLOW_CTRL_BOTH;
bnx2x_acquire_phy_lock(bp);
rc = bnx2x_phy_init(&bp->link_params, &bp->link_vars);
......
......@@ -4966,6 +4966,7 @@
#define EMAC_RX_MODE_PROMISCUOUS (1L<<8)
#define EMAC_RX_MTU_SIZE_JUMBO_ENA (1L<<31)
#define EMAC_TX_MODE_EXT_PAUSE_EN (1L<<3)
#define EMAC_TX_MODE_FLOW_EN (1L<<4)
#define MISC_REGISTERS_GPIO_0 0
#define MISC_REGISTERS_GPIO_1 1
#define MISC_REGISTERS_GPIO_2 2
......@@ -5615,7 +5616,8 @@ Theotherbitsarereservedandshouldbezero*/
#define MDIO_AN_REG_LINK_STATUS 0x8304
#define MDIO_AN_REG_CL37_CL73 0x8370
#define MDIO_AN_REG_CL37_AN 0xffe0
#define MDIO_AN_REG_CL37_FD 0xffe4
#define MDIO_AN_REG_CL37_FC_LD 0xffe4
#define MDIO_AN_REG_CL37_FC_LP 0xffe5
#define IGU_FUNC_BASE 0x0400
......
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