summaryrefslogtreecommitdiffstats
path: root/drivers/net/dsa
diff options
context:
space:
mode:
authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2016-07-18 20:45:36 -0400
committerDavid S. Miller <davem@davemloft.net>2016-07-19 19:42:01 -0700
commit9bda889faed61c2b2f7c2356b6a9e577c9812cf0 (patch)
tree7dc26f7d701c314357366760df9a85bddb90d560 /drivers/net/dsa
parent63ed880dea23ddbe4a98c8f7c13ea5ad42635987 (diff)
downloadlinux-9bda889faed61c2b2f7c2356b6a9e577c9812cf0.tar.bz2
net: dsa: mv88e6xxx: add cap for Priority Override
Add flags and helpers to describe the presence of Priority Override Table (POT) related registers and simplify the setup of Global 2. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c36
-rw-r--r--drivers/net/dsa/mv88e6xxx/mv88e6xxx.h7
2 files changed, 33 insertions, 10 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index f346ad7f16a6..34227929e388 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3172,6 +3172,28 @@ static int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip, u8 *addr)
return err;
}
+static int mv88e6xxx_g2_pot_write(struct mv88e6xxx_chip *chip, int pointer,
+ u8 data)
+{
+ u16 val = (pointer << 8) | (data & 0x7);
+
+ return mv88e6xxx_update(chip, REG_GLOBAL2, GLOBAL2_PRIO_OVERRIDE, val);
+}
+
+static int mv88e6xxx_g2_clear_pot(struct mv88e6xxx_chip *chip)
+{
+ int i, err;
+
+ /* Clear all sixteen possible Priority Override entries */
+ for (i = 0; i < 16; i++) {
+ err = mv88e6xxx_g2_pot_write(chip, i, 0);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
static int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
{
u16 reg;
@@ -3229,17 +3251,11 @@ static int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
return err;
}
- if (mv88e6xxx_6352_family(chip) || mv88e6xxx_6351_family(chip) ||
- mv88e6xxx_6165_family(chip) || mv88e6xxx_6097_family(chip) ||
- mv88e6xxx_6320_family(chip)) {
+ if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_POT)) {
/* Clear the priority override table. */
- for (i = 0; i < 16; i++) {
- err = _mv88e6xxx_reg_write(chip, REG_GLOBAL2,
- GLOBAL2_PRIO_OVERRIDE,
- 0x8000 | (i << 8));
- if (err)
- return err;
- }
+ err = mv88e6xxx_g2_clear_pot(chip);
+ if (err)
+ return err;
}
if (mv88e6xxx_6352_family(chip) || mv88e6xxx_6351_family(chip) ||
diff --git a/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h
index 4e0365090b86..06b11fbf35a5 100644
--- a/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h
@@ -396,6 +396,7 @@ enum mv88e6xxx_cap {
MV88E6XXX_CAP_G2_PVT_ADDR, /* (0x0b) Cross Chip Port VLAN Addr */
MV88E6XXX_CAP_G2_PVT_DATA, /* (0x0c) Cross Chip Port VLAN Data */
MV88E6XXX_CAP_G2_SWITCH_MAC, /* (0x0d) Switch MAC/WoL/WoF */
+ MV88E6XXX_CAP_G2_POT, /* (0x0f) Priority Override Table */
/* Multi-chip Addressing Mode.
* Some chips require an indirect SMI access when their SMI device
@@ -442,6 +443,7 @@ enum mv88e6xxx_cap {
#define MV88E6XXX_FLAG_G2_PVT_ADDR BIT(MV88E6XXX_CAP_G2_PVT_ADDR)
#define MV88E6XXX_FLAG_G2_PVT_DATA BIT(MV88E6XXX_CAP_G2_PVT_DATA)
#define MV88E6XXX_FLAG_G2_SWITCH_MAC BIT(MV88E6XXX_CAP_G2_SWITCH_MAC)
+#define MV88E6XXX_FLAG_G2_POT BIT(MV88E6XXX_CAP_G2_POT)
#define MV88E6XXX_FLAG_MULTI_CHIP BIT(MV88E6XXX_CAP_MULTI_CHIP)
#define MV88E6XXX_FLAG_PPU BIT(MV88E6XXX_CAP_PPU)
#define MV88E6XXX_FLAG_PPU_ACTIVE BIT(MV88E6XXX_CAP_PPU_ACTIVE)
@@ -467,6 +469,7 @@ enum mv88e6xxx_cap {
(MV88E6XXX_FLAG_GLOBAL2 | \
MV88E6XXX_FLAG_G2_MGMT_EN_2X | \
MV88E6XXX_FLAG_G2_MGMT_EN_0X | \
+ MV88E6XXX_FLAG_G2_POT | \
MV88E6XXX_FLAG_MULTI_CHIP | \
MV88E6XXX_FLAG_PPU | \
MV88E6XXX_FLAG_STU | \
@@ -478,6 +481,7 @@ enum mv88e6xxx_cap {
MV88E6XXX_FLAG_G2_MGMT_EN_2X | \
MV88E6XXX_FLAG_G2_MGMT_EN_0X | \
MV88E6XXX_FLAG_G2_SWITCH_MAC | \
+ MV88E6XXX_FLAG_G2_POT | \
MV88E6XXX_FLAG_MULTI_CHIP | \
MV88E6XXX_FLAG_STU | \
MV88E6XXX_FLAG_TEMP | \
@@ -498,6 +502,7 @@ enum mv88e6xxx_cap {
MV88E6XXX_FLAG_G2_MGMT_EN_2X | \
MV88E6XXX_FLAG_G2_MGMT_EN_0X | \
MV88E6XXX_FLAG_G2_SWITCH_MAC | \
+ MV88E6XXX_FLAG_G2_POT | \
MV88E6XXX_FLAG_MULTI_CHIP | \
MV88E6XXX_FLAG_PPU_ACTIVE | \
MV88E6XXX_FLAG_SMI_PHY | \
@@ -511,6 +516,7 @@ enum mv88e6xxx_cap {
MV88E6XXX_FLAG_G2_MGMT_EN_2X | \
MV88E6XXX_FLAG_G2_MGMT_EN_0X | \
MV88E6XXX_FLAG_G2_SWITCH_MAC | \
+ MV88E6XXX_FLAG_G2_POT | \
MV88E6XXX_FLAG_MULTI_CHIP | \
MV88E6XXX_FLAG_PPU_ACTIVE | \
MV88E6XXX_FLAG_SMI_PHY | \
@@ -526,6 +532,7 @@ enum mv88e6xxx_cap {
MV88E6XXX_FLAG_G2_MGMT_EN_2X | \
MV88E6XXX_FLAG_G2_MGMT_EN_0X | \
MV88E6XXX_FLAG_G2_SWITCH_MAC | \
+ MV88E6XXX_FLAG_G2_POT | \
MV88E6XXX_FLAG_MULTI_CHIP | \
MV88E6XXX_FLAG_PPU_ACTIVE | \
MV88E6XXX_FLAG_SMI_PHY | \