67 lines
2 KiB
Diff
67 lines
2 KiB
Diff
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From eac92acae29cfab34785d61cbb3218e88e487b77 Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jogo@openwrt.org>
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Date: Mon, 8 Jul 2013 00:35:12 +0200
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Subject: [PATCH 27/29] net: mv643xx_eth: do not use port number as platform
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device id
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The port number is only local to the ethernet block, not global, so
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there can be two ethernet blocks both using the same port, like
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kirkwood with both using port 0.
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Fix this by using the array index offset for the allocated platform
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devices as the id.
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Signed-off-by: Jonas Gorski <jogo@openwrt.org>
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---
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drivers/net/ethernet/marvell/mv643xx_eth.c | 13 +++++++++++--
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1 file changed, 11 insertions(+), 2 deletions(-)
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diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
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index 004a250..e57d292 100644
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--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
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+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
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@@ -2483,6 +2483,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
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struct resource res;
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const char *mac_addr;
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int ret;
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+ int dev_num = 0;
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memset(&ppd, 0, sizeof(ppd));
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ppd.shared = pdev;
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@@ -2503,6 +2504,14 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
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return -EINVAL;
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}
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+ while (dev_num < 3 && port_platdev[dev_num])
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+ dev_num++;
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+
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+ if (dev_num == 3) {
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+ dev_err(&pdev->dev, "too many ports registered\n");
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+ return -EINVAL;
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+ }
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+
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mac_addr = of_get_mac_address(pnp);
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if (mac_addr)
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memcpy(ppd.mac_addr, mac_addr, 6);
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@@ -2521,7 +2530,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
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of_property_read_u32(pnp, "duplex", &ppd.duplex);
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}
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- ppdev = platform_device_alloc(MV643XX_ETH_NAME, ppd.port_number);
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+ ppdev = platform_device_alloc(MV643XX_ETH_NAME, dev_num);
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if (!ppdev)
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return -ENOMEM;
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ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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@@ -2538,7 +2547,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
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if (ret)
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goto port_err;
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- port_platdev[ppd.port_number] = ppdev;
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+ port_platdev[dev_num] = ppdev;
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return 0;
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--
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1.8.4.rc1
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