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authorFlorian Fainelli <f.fainelli@gmail.com>2017-01-20 23:36:30 +0300
committerDavid S. Miller <davem@davemloft.net>2017-01-23 00:58:31 +0300
commit0fe9933804eb860b7c26fd3fcd5839dc6bb66533 (patch)
tree2d41430683db486ddd11cab1b491f4f24e88316f /drivers/net/dsa/bcm_sf2.c
parenta78e86ed586dba0808f765a9498f1fcd803f6ac6 (diff)
downloadlinux-0fe9933804eb860b7c26fd3fcd5839dc6bb66533.tar.xz
net: dsa: bcm_sf2: Add support for BCM7278 integrated switch
Add support for the integrated switch found on BCM7278: - core_reg_align is set to 1, to force a translation into the target address space which is 8 bytes aligned - an alternate SWITCH_REG layout is provided since registers are largely bit/masks compatible but have different offsets - conditional for all CORE_STS_OVERRIDE_{IMP,GMII_P} since those got moved way out of the traditional register space Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/bcm_sf2.c')
-rw-r--r--drivers/net/dsa/bcm_sf2.c56
1 files changed, 48 insertions, 8 deletions
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index d952099afc60..02afa0598b24 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -64,7 +64,12 @@ static void bcm_sf2_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port)
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
- u32 reg, val;
+ u32 reg, val, offset;
+
+ if (priv->type == BCM7445_DEVICE_ID)
+ offset = CORE_STS_OVERRIDE_IMP;
+ else
+ offset = CORE_STS_OVERRIDE_IMP2;
/* Enable the port memories */
reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
@@ -121,9 +126,9 @@ static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port)
core_writel(priv, reg, CORE_BRCM_HDR_TX_DIS);
/* Force link status for IMP port */
- reg = core_readl(priv, CORE_STS_OVERRIDE_IMP);
+ reg = core_readl(priv, offset);
reg |= (MII_SW_OR | LINK_STS);
- core_writel(priv, reg, CORE_STS_OVERRIDE_IMP);
+ core_writel(priv, reg, offset);
}
static void bcm_sf2_eee_enable_set(struct dsa_switch *ds, int port, bool enable)
@@ -591,7 +596,12 @@ static void bcm_sf2_sw_adjust_link(struct dsa_switch *ds, int port,
struct ethtool_eee *p = &priv->port_sts[port].eee;
u32 id_mode_dis = 0, port_mode;
const char *str = NULL;
- u32 reg;
+ u32 reg, offset;
+
+ if (priv->type == BCM7445_DEVICE_ID)
+ offset = CORE_STS_OVERRIDE_GMIIP_PORT(port);
+ else
+ offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port);
switch (phydev->interface) {
case PHY_INTERFACE_MODE_RGMII:
@@ -662,7 +672,7 @@ force_link:
if (phydev->duplex == DUPLEX_FULL)
reg |= DUPLX_MODE;
- core_writel(priv, reg, CORE_STS_OVERRIDE_GMIIP_PORT(port));
+ core_writel(priv, reg, offset);
if (!phydev->is_pseudo_fixed_link)
p->eee_enabled = bcm_sf2_eee_init(ds, port, phydev);
@@ -672,9 +682,14 @@ static void bcm_sf2_sw_fixed_link_update(struct dsa_switch *ds, int port,
struct fixed_phy_status *status)
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
- u32 duplex, pause;
+ u32 duplex, pause, offset;
u32 reg;
+ if (priv->type == BCM7445_DEVICE_ID)
+ offset = CORE_STS_OVERRIDE_GMIIP_PORT(port);
+ else
+ offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port);
+
duplex = core_readl(priv, CORE_DUPSTS);
pause = core_readl(priv, CORE_PAUSESTS);
@@ -703,13 +718,13 @@ static void bcm_sf2_sw_fixed_link_update(struct dsa_switch *ds, int port,
status->duplex = !!(duplex & (1 << port));
}
- reg = core_readl(priv, CORE_STS_OVERRIDE_GMIIP_PORT(port));
+ reg = core_readl(priv, offset);
reg |= SW_OVERRIDE;
if (status->link)
reg |= LINK_STS;
else
reg &= ~LINK_STS;
- core_writel(priv, reg, CORE_STS_OVERRIDE_GMIIP_PORT(port));
+ core_writel(priv, reg, offset);
if ((pause & (1 << port)) &&
(pause & (1 << (port + PAUSESTS_TX_PAUSE_SHIFT)))) {
@@ -1038,10 +1053,35 @@ static const struct bcm_sf2_of_data bcm_sf2_7445_data = {
.reg_offsets = bcm_sf2_7445_reg_offsets,
};
+static const u16 bcm_sf2_7278_reg_offsets[] = {
+ [REG_SWITCH_CNTRL] = 0x00,
+ [REG_SWITCH_STATUS] = 0x04,
+ [REG_DIR_DATA_WRITE] = 0x08,
+ [REG_DIR_DATA_READ] = 0x0c,
+ [REG_SWITCH_REVISION] = 0x10,
+ [REG_PHY_REVISION] = 0x14,
+ [REG_SPHY_CNTRL] = 0x24,
+ [REG_RGMII_0_CNTRL] = 0xe0,
+ [REG_RGMII_1_CNTRL] = 0xec,
+ [REG_RGMII_2_CNTRL] = 0xf8,
+ [REG_LED_0_CNTRL] = 0x40,
+ [REG_LED_1_CNTRL] = 0x4c,
+ [REG_LED_2_CNTRL] = 0x58,
+};
+
+static const struct bcm_sf2_of_data bcm_sf2_7278_data = {
+ .type = BCM7278_DEVICE_ID,
+ .core_reg_align = 1,
+ .reg_offsets = bcm_sf2_7278_reg_offsets,
+};
+
static const struct of_device_id bcm_sf2_of_match[] = {
{ .compatible = "brcm,bcm7445-switch-v4.0",
.data = &bcm_sf2_7445_data
},
+ { .compatible = "brcm,bcm7278-switch-v4.0",
+ .data = &bcm_sf2_7278_data
+ },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, bcm_sf2_of_match);