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path: root/drivers/net/ethernet/mscc/ocelot_board.c
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Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_board.c')
-rw-r--r--drivers/net/ethernet/mscc/ocelot_board.c85
1 files changed, 63 insertions, 22 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_board.c b/drivers/net/ethernet/mscc/ocelot_board.c
index 811599f32910..5581b3b0165c 100644
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c
@@ -105,7 +105,7 @@ static irqreturn_t ocelot_xtr_irq_handler(int irq, void *arg)
int sz, len, buf_len;
struct sk_buff *skb;
- for (i = 0; i < IFH_LEN; i++) {
+ for (i = 0; i < OCELOT_TAG_LEN / 4; i++) {
err = ocelot_rx_frame_word(ocelot, grp, true, &ifh[i]);
if (err != 4)
break;
@@ -254,6 +254,57 @@ static const struct of_device_id mscc_ocelot_match[] = {
};
MODULE_DEVICE_TABLE(of, mscc_ocelot_match);
+static void ocelot_port_pcs_init(struct ocelot *ocelot, int port)
+{
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+ /* Disable HDX fast control */
+ ocelot_port_writel(ocelot_port, DEV_PORT_MISC_HDX_FAST_DIS,
+ DEV_PORT_MISC);
+
+ /* SGMII only for now */
+ ocelot_port_writel(ocelot_port, PCS1G_MODE_CFG_SGMII_MODE_ENA,
+ PCS1G_MODE_CFG);
+ ocelot_port_writel(ocelot_port, PCS1G_SD_CFG_SD_SEL, PCS1G_SD_CFG);
+
+ /* Enable PCS */
+ ocelot_port_writel(ocelot_port, PCS1G_CFG_PCS_ENA, PCS1G_CFG);
+
+ /* No aneg on SGMII */
+ ocelot_port_writel(ocelot_port, 0, PCS1G_ANEG_CFG);
+
+ /* No loopback */
+ ocelot_port_writel(ocelot_port, 0, PCS1G_LB_CFG);
+}
+
+static int ocelot_reset(struct ocelot *ocelot)
+{
+ int retries = 100;
+ u32 val;
+
+ regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_INIT], 1);
+ regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1);
+
+ do {
+ msleep(1);
+ regmap_field_read(ocelot->regfields[SYS_RESET_CFG_MEM_INIT],
+ &val);
+ } while (val && --retries);
+
+ if (!retries)
+ return -ETIMEDOUT;
+
+ regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1);
+ regmap_field_write(ocelot->regfields[SYS_RESET_CFG_CORE_ENA], 1);
+
+ return 0;
+}
+
+static const struct ocelot_ops ocelot_ops = {
+ .pcs_init = ocelot_port_pcs_init,
+ .reset = ocelot_reset,
+};
+
static int mscc_ocelot_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -262,13 +313,12 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
struct ocelot *ocelot;
struct regmap *hsio;
unsigned int i;
- u32 val;
struct {
enum ocelot_target id;
char *name;
u8 optional:1;
- } res[] = {
+ } io_target[] = {
{ SYS, "sys" },
{ REW, "rew" },
{ QSYS, "qsys" },
@@ -288,20 +338,23 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ocelot);
ocelot->dev = &pdev->dev;
- for (i = 0; i < ARRAY_SIZE(res); i++) {
+ for (i = 0; i < ARRAY_SIZE(io_target); i++) {
struct regmap *target;
+ struct resource *res;
- target = ocelot_io_platform_init(ocelot, pdev, res[i].name);
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ io_target[i].name);
+
+ target = ocelot_regmap_init(ocelot, res);
if (IS_ERR(target)) {
- if (res[i].optional) {
- ocelot->targets[res[i].id] = NULL;
+ if (io_target[i].optional) {
+ ocelot->targets[io_target[i].id] = NULL;
continue;
}
-
return PTR_ERR(target);
}
- ocelot->targets[res[i].id] = target;
+ ocelot->targets[io_target[i].id] = target;
}
hsio = syscon_regmap_lookup_by_compatible("mscc,ocelot-hsio");
@@ -312,7 +365,7 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
ocelot->targets[HSIO] = hsio;
- err = ocelot_chip_init(ocelot);
+ err = ocelot_chip_init(ocelot, &ocelot_ops);
if (err)
return err;
@@ -339,18 +392,6 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
ocelot->ptp = 1;
}
- regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_INIT], 1);
- regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1);
-
- do {
- msleep(1);
- regmap_field_read(ocelot->regfields[SYS_RESET_CFG_MEM_INIT],
- &val);
- } while (val);
-
- regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1);
- regmap_field_write(ocelot->regfields[SYS_RESET_CFG_CORE_ENA], 1);
-
ocelot->num_cpu_ports = 1; /* 1 port on the switch, two groups */
ports = of_get_child_by_name(np, "ethernet-ports");