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bnx2x: Warpcore HW reset following fan failure

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Put Warpcore in low power mode in case of fan failure to reduce heat.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yaniv Rosner 2011-11-28 00:49:47 +00:00 committed by David S. Miller
parent 870516e173
commit b76070b405
2 changed files with 17 additions and 0 deletions
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8
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
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@ -8216,7 +8216,15 @@ static void bnx2x_warpcore_power_module(struct link_params *params,
static void bnx2x_warpcore_hw_reset(struct bnx2x_phy *phy,
struct link_params *params)
{
struct bnx2x *bp = params->bp;
bnx2x_warpcore_power_module(params, phy, 0);
/* Put Warpcore in low power mode */
REG_WR(bp, MISC_REG_WC0_RESET, 0x0c0e);
/* Put LCPLL in low power mode */
REG_WR(bp, MISC_REG_LCPLL_E40_PWRDWN, 1);
REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_ANA, 0);
REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_DIG, 0);
}
static void bnx2x_power_sfp_module(struct link_params *params,

9
drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
View File

@ -1622,6 +1622,14 @@
register bits. */
#define MISC_REG_LCPLL_CTRL_1 0xa2a4
#define MISC_REG_LCPLL_CTRL_REG_2 0xa2a8
/* [RW 1] LCPLL power down. Global register. Active High. Reset on POR
* reset. */
#define MISC_REG_LCPLL_E40_PWRDWN 0xaa74
/* [RW 1] LCPLL VCO reset. Global register. Active Low Reset on POR reset. */
#define MISC_REG_LCPLL_E40_RESETB_ANA 0xaa78
/* [RW 1] LCPLL post-divider reset. Global register. Active Low Reset on POR
* reset. */
#define MISC_REG_LCPLL_E40_RESETB_DIG 0xaa7c
/* [RW 4] Interrupt mask register #0 read/write */
#define MISC_REG_MISC_INT_MASK 0xa388
/* [RW 1] Parity mask register #0 read/write */
@ -1757,6 +1765,7 @@
* is compared to the value on ctrl_md_devad. Drives output
* misc_xgxs0_phy_addr. Global register. */
#define MISC_REG_WC0_CTRL_PHY_ADDR 0xa9cc
#define MISC_REG_WC0_RESET 0xac30
/* [RW 2] XMAC Core port mode. Indicates the number of ports on the system
side. This should be less than or equal to phy_port_mode; if some of the
ports are not used. This enables reduction of frequency on the core side.