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54 lines
2.5 KiB
Diff
54 lines
2.5 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Thu, 19 Jan 2017 14:14:36 +0100
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Subject: [PATCH] MIPS: Lantiq: Keep ethernet enabled during boot
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Disabling ethernet during reboot (only to enable it again when the
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ethernet driver attaches) can put the chip into a faulty state where it
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corrupts the header of all incoming packets.
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This happens if packets arrive during the time window where the core is
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disabled, and it can be easily reproduced by rebooting while sending a
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flood ping to the broadcast address.
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Cc: john@phrozen.org
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Cc: hauke.mehrtens@lantiq.com
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Cc: stable@vger.kernel.org
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Fixes: 95135bfa7ead ("MIPS: Lantiq: Deactivate most of the devices by default")
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/arch/mips/lantiq/xway/sysctrl.c
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+++ b/arch/mips/lantiq/xway/sysctrl.c
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@@ -564,7 +564,7 @@ void __init ltq_soc_init(void)
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clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
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clkdev_add_pmu("1a800000.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
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clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
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- clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH | PMU_PPE_DP);
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+ clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
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clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
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clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
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} else if (of_machine_is_compatible("lantiq,ar10")) {
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@@ -572,7 +572,7 @@ void __init ltq_soc_init(void)
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ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
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clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
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clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
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- clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH |
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+ clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH |
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PMU_PPE_DP | PMU_PPE_TC);
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clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
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clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
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@@ -594,11 +594,11 @@ void __init ltq_soc_init(void)
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clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
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clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
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- clkdev_add_pmu("1e108000.eth", NULL, 1, 0,
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+ clkdev_add_pmu("1e108000.eth", NULL, 0, 0,
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PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
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PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
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PMU_PPE_QSB | PMU_PPE_TOP);
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- clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
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+ clkdev_add_pmu("1f203000.rcu", "gphy", 0, 0, PMU_GPHY);
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clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
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clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
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clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
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