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| author | Yuval Mintz <yuvalmin@broadcom.com> | 2012-12-02 05:05:45 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-12-03 02:22:59 +0100 |
| commit | d6d99a3f7e9169ef351340b217b48accab78e849 (patch) | |
| tree | ba007398f5f1903a79f82e1cc753870f4b1282fa | |
| parent | net/mlx4_en: Set number of rx/tx channels using ethtool (diff) | |
| download | linux-d6d99a3f7e9169ef351340b217b48accab78e849.tar.xz linux-d6d99a3f7e9169ef351340b217b48accab78e849.zip | |
bnx2x: revised and corrected SPIO access
Changed naming convention of SPIO macros, and prevented access to invalid SPIOs.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 43 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h | 10 |
2 files changed, 30 insertions, 23 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index b4659c4b6fbd..5a22e19d2d98 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -2032,40 +2032,39 @@ int bnx2x_set_gpio_int(struct bnx2x *bp, int gpio_num, u32 mode, u8 port) return 0; } -static int bnx2x_set_spio(struct bnx2x *bp, int spio_num, u32 mode) +static int bnx2x_set_spio(struct bnx2x *bp, int spio, u32 mode) { - u32 spio_mask = (1 << spio_num); u32 spio_reg; - if ((spio_num < MISC_REGISTERS_SPIO_4) || - (spio_num > MISC_REGISTERS_SPIO_7)) { - BNX2X_ERR("Invalid SPIO %d\n", spio_num); + /* Only 2 SPIOs are configurable */ + if ((spio != MISC_SPIO_SPIO4) && (spio != MISC_SPIO_SPIO5)) { + BNX2X_ERR("Invalid SPIO 0x%x\n", spio); return -EINVAL; } bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_SPIO); /* read SPIO and mask except the float bits */ - spio_reg = (REG_RD(bp, MISC_REG_SPIO) & MISC_REGISTERS_SPIO_FLOAT); + spio_reg = (REG_RD(bp, MISC_REG_SPIO) & MISC_SPIO_FLOAT); switch (mode) { - case MISC_REGISTERS_SPIO_OUTPUT_LOW: - DP(NETIF_MSG_HW, "Set SPIO %d -> output low\n", spio_num); + case MISC_SPIO_OUTPUT_LOW: + DP(NETIF_MSG_HW, "Set SPIO 0x%x -> output low\n", spio); /* clear FLOAT and set CLR */ - spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS); - spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_CLR_POS); + spio_reg &= ~(spio << MISC_SPIO_FLOAT_POS); + spio_reg |= (spio << MISC_SPIO_CLR_POS); break; - case MISC_REGISTERS_SPIO_OUTPUT_HIGH: - DP(NETIF_MSG_HW, "Set SPIO %d -> output high\n", spio_num); + case MISC_SPIO_OUTPUT_HIGH: + DP(NETIF_MSG_HW, "Set SPIO 0x%x -> output high\n", spio); /* clear FLOAT and set SET */ - spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS); - spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_SET_POS); + spio_reg &= ~(spio << MISC_SPIO_FLOAT_POS); + spio_reg |= (spio << MISC_SPIO_SET_POS); break; - case MISC_REGISTERS_SPIO_INPUT_HI_Z: - DP(NETIF_MSG_HW, "Set SPIO %d -> input\n", spio_num); + case MISC_SPIO_INPUT_HI_Z: + DP(NETIF_MSG_HW, "Set SPIO 0x%x -> input\n", spio); /* set FLOAT */ - spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS); + spio_reg |= (spio << MISC_SPIO_FLOAT_POS); break; default: @@ -6196,18 +6195,16 @@ static void bnx2x_setup_fan_failure_detection(struct bnx2x *bp) return; /* Fan failure is indicated by SPIO 5 */ - bnx2x_set_spio(bp, MISC_REGISTERS_SPIO_5, - MISC_REGISTERS_SPIO_INPUT_HI_Z); + bnx2x_set_spio(bp, MISC_SPIO_SPIO5, MISC_SPIO_INPUT_HI_Z); /* set to active low mode */ val = REG_RD(bp, MISC_REG_SPIO_INT); - val |= ((1 << MISC_REGISTERS_SPIO_5) << - MISC_REGISTERS_SPIO_INT_OLD_SET_POS); + val |= (MISC_SPIO_SPIO5 << MISC_SPIO_INT_OLD_SET_POS); REG_WR(bp, MISC_REG_SPIO_INT, val); /* enable interrupt to signal the IGU */ val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN); - val |= (1 << MISC_REGISTERS_SPIO_5); + val |= MISC_SPIO_SPIO5; REG_WR(bp, MISC_REG_SPIO_EVENT_EN, val); } @@ -6969,7 +6966,7 @@ static int bnx2x_init_hw_port(struct bnx2x *bp) /* If SPIO5 is set to generate interrupts, enable it for this port */ val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN); - if (val & (1 << MISC_REGISTERS_SPIO_5)) { + if (val & MISC_SPIO_SPIO5) { u32 reg_addr = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 : MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0); val = REG_RD(bp, reg_addr); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h index f8d432af2563..87cf37c71b30 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h @@ -5942,6 +5942,16 @@ #define MISC_REGISTERS_SPIO_OUTPUT_HIGH 1 #define MISC_REGISTERS_SPIO_OUTPUT_LOW 0 #define MISC_REGISTERS_SPIO_SET_POS 8 +#define MISC_SPIO_CLR_POS 16 +#define MISC_SPIO_FLOAT (0xffL<<24) +#define MISC_SPIO_FLOAT_POS 24 +#define MISC_SPIO_INPUT_HI_Z 2 +#define MISC_SPIO_INT_OLD_SET_POS 16 +#define MISC_SPIO_OUTPUT_HIGH 1 +#define MISC_SPIO_OUTPUT_LOW 0 +#define MISC_SPIO_SET_POS 8 +#define MISC_SPIO_SPIO4 0x10 +#define MISC_SPIO_SPIO5 0x20 #define HW_LOCK_MAX_RESOURCE_VALUE 31 #define HW_LOCK_RESOURCE_DCBX_ADMIN_MIB 13 #define HW_LOCK_RESOURCE_DRV_FLAGS 10 |