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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-17 19:07:23 +0100 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-17 20:40:16 +0100 |
commit | f323dec4f866d9ea75eae11c6762d0144d100628 (patch) | |
tree | c40f33e9a89e935b32e6a1520f02019200e7cc17 /target/linux/bcm63xx/patches-5.10/206-USB-EHCI-allow-limiting-ports-for-ehci-platform.patch | |
parent | 5bb9954826229782d4d285d65dfcca8a1c9e20d9 (diff) | |
download | upstream-f323dec4f866d9ea75eae11c6762d0144d100628.tar.gz upstream-f323dec4f866d9ea75eae11c6762d0144d100628.tar.bz2 upstream-f323dec4f866d9ea75eae11c6762d0144d100628.zip |
bcm63xx: add kernel 5.10 support
Runtime-tested on Comtrend AR-5387un.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm63xx/patches-5.10/206-USB-EHCI-allow-limiting-ports-for-ehci-platform.patch')
-rw-r--r-- | target/linux/bcm63xx/patches-5.10/206-USB-EHCI-allow-limiting-ports-for-ehci-platform.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/bcm63xx/patches-5.10/206-USB-EHCI-allow-limiting-ports-for-ehci-platform.patch b/target/linux/bcm63xx/patches-5.10/206-USB-EHCI-allow-limiting-ports-for-ehci-platform.patch new file mode 100644 index 0000000000..34fac9538c --- /dev/null +++ b/target/linux/bcm63xx/patches-5.10/206-USB-EHCI-allow-limiting-ports-for-ehci-platform.patch @@ -0,0 +1,66 @@ +From 6ac09efa8f0e189ffe7dd7b0889289de56ee44cc Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Sun, 19 Jan 2014 12:18:03 +0100 +Subject: [PATCH] USB: EHCI: allow limiting ports for ehci-platform + +In the same way as the ohci platform driver allows limiting ports, +enable the same for ehci. This prevents a mismatch in the available +ports between ehci/ohci on USB 2.0 controllers. + +This is needed if the USB host controller always reports the maximum +number of ports regardless of the number of available ports (because +one might be set to be usb device). + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + drivers/usb/host/ehci-hcd.c | 4 ++++ + drivers/usb/host/ehci-platform.c | 2 ++ + drivers/usb/host/ehci.h | 1 + + include/linux/usb/ehci_pdriver.h | 1 + + 4 files changed, 8 insertions(+) + +--- a/drivers/usb/host/ehci-hcd.c ++++ b/drivers/usb/host/ehci-hcd.c +@@ -678,6 +678,10 @@ int ehci_setup(struct usb_hcd *hcd) + + /* cache this readonly data; minimize chip reads */ + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); ++ if (ehci->num_ports) { ++ ehci->hcs_params &= ~0xf; /* bits 3:0, ports on HC */ ++ ehci->hcs_params |= ehci->num_ports; ++ } + + ehci->sbrn = HCD_USB2; + +--- a/drivers/usb/host/ehci-platform.c ++++ b/drivers/usb/host/ehci-platform.c +@@ -65,6 +65,9 @@ static int ehci_platform_reset(struct us + + ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug; + ++ if (pdata->num_ports && pdata->num_ports <= 15) ++ ehci->num_ports = pdata->num_ports; ++ + if (pdata->pre_setup) { + retval = pdata->pre_setup(hcd); + if (retval < 0) +--- a/drivers/usb/host/ehci.h ++++ b/drivers/usb/host/ehci.h +@@ -203,6 +203,7 @@ struct ehci_hcd { /* one per controlle + u32 command; + + /* SILICON QUIRKS */ ++ unsigned int num_ports; + unsigned no_selective_suspend:1; + unsigned has_fsl_port_bug:1; /* FreeScale */ + unsigned has_fsl_hs_errata:1; /* Freescale HS quirk */ +--- a/include/linux/usb/ehci_pdriver.h ++++ b/include/linux/usb/ehci_pdriver.h +@@ -43,6 +43,7 @@ struct usb_hcd; + */ + struct usb_ehci_pdata { + int caps_offset; ++ unsigned int num_ports; + unsigned has_tt:1; + unsigned has_synopsys_hc_bug:1; + unsigned big_endian_desc:1; |