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[net-next,2/4] net: dsa: mv88e6xxx: account for PHY base address offset in dual chip mode

Message ID 20200330135345.4361-2-matthias.schiffer@ew.tq-group.com
State Changes Requested
Delegated to: David Miller
Headers show
Series [net-next,1/4] net: dsa: allow switch drivers to override default slave PHY addresses | expand

Commit Message

Matthias Schiffer March 30, 2020, 1:53 p.m. UTC
In dual chip mode (6250 family), not only global and port registers are
shifted by sw_addr, but also the PHY addresses. Account for this in the
IRQ mapping.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
---
 drivers/net/dsa/mv88e6xxx/chip.h    | 1 +
 drivers/net/dsa/mv88e6xxx/global2.c | 2 +-
 drivers/net/dsa/mv88e6xxx/smi.c     | 4 ++++
 3 files changed, 6 insertions(+), 1 deletion(-)

Comments

David Miller March 31, 2020, 3 a.m. UTC | #1
From: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Date: Mon, 30 Mar 2020 15:53:43 +0200

> diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
> index e5430cf2ad71..88c148a62366 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.h
> +++ b/drivers/net/dsa/mv88e6xxx/chip.h
> @@ -257,6 +257,7 @@ struct mv88e6xxx_chip {
>  	const struct mv88e6xxx_bus_ops *smi_ops;
>  	struct mii_bus *bus;
>  	int sw_addr;
> +	unsigned int phy_base_addr;

Please preserve the reverse christmas tree ordering here.

And this submission was quite late and net-next is closing now so
please resubmit this after the merge window and net-next opens again.

Thanks.
diff mbox series

Patch

diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index e5430cf2ad71..88c148a62366 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -257,6 +257,7 @@  struct mv88e6xxx_chip {
 	const struct mv88e6xxx_bus_ops *smi_ops;
 	struct mii_bus *bus;
 	int sw_addr;
+	unsigned int phy_base_addr;
 
 	/* Handles automatic disabling and re-enabling of the PHY
 	 * polling unit.
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index 8fd483020c5b..3c3dfaf16882 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -1156,7 +1156,7 @@  int mv88e6xxx_g2_irq_mdio_setup(struct mv88e6xxx_chip *chip,
 			err = irq;
 			goto out;
 		}
-		bus->irq[chip->info->phy_base_addr + phy] = irq;
+		bus->irq[chip->phy_base_addr + phy] = irq;
 	}
 	return 0;
 out:
diff --git a/drivers/net/dsa/mv88e6xxx/smi.c b/drivers/net/dsa/mv88e6xxx/smi.c
index 282fe08db050..a62d7b8702d5 100644
--- a/drivers/net/dsa/mv88e6xxx/smi.c
+++ b/drivers/net/dsa/mv88e6xxx/smi.c
@@ -175,5 +175,9 @@  int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
 	chip->bus = bus;
 	chip->sw_addr = sw_addr;
 
+	chip->phy_base_addr = chip->info->phy_base_addr;
+	if (chip->info->dual_chip)
+		chip->phy_base_addr += sw_addr;
+
 	return 0;
 }