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Message-ID: <1414497280-3126-20-git-send-email-ray.huang@amd.com>
Date: Tue, 28 Oct 2014 19:54:40 +0800
From: Huang Rui <ray.huang@....com>
To: Felipe Balbi <balbi@...com>,
Alan Stern <stern@...land.harvard.edu>,
"Bjorn Helgaas" <bhelgaas@...gle.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: Paul Zimmerman <Paul.Zimmerman@...opsys.com>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Jason Chang <jason.chang@....com>,
"Vincent Wan" <vincent.wan@....com>, Tony Li <tony.li@....com>,
<linux-usb@...r.kernel.org>, <linux-pci@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Huang Rui <ray.huang@....com>
Subject: [PATCH v3 19/19] usb: dwc3: add support for AMD NL platform
This patch adds support for AMD Nolan (NL) FPGA and SoC platform.
Cc: Jason Chang <jason.chang@....com>
Signed-off-by: Huang Rui <ray.huang@....com>
---
drivers/usb/dwc3/core.c | 9 +++++++++
drivers/usb/dwc3/core.h | 2 ++
drivers/usb/dwc3/dwc3-pci.c | 19 +++++++++++++++++++
drivers/usb/dwc3/platform_data.h | 1 +
4 files changed, 31 insertions(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 33a8f3c..7ab867b 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -526,6 +526,12 @@ static int dwc3_core_init(struct dwc3 *dwc)
dwc->is_fpga = true;
}
+ if (dwc->amd_nl_plat && dwc->is_fpga) {
+ dwc->disable_scramble_quirk = true;
+ dwc->dis_u3_susphy_quirk = true;
+ dwc->dis_u2_susphy_quirk = true;
+ }
+
WARN_ONCE(dwc->disable_scramble_quirk && !dwc->is_fpga,
"disable_scramble cannot be used on non-FPGA builds\n");
@@ -817,6 +823,8 @@ static int dwc3_probe(struct platform_device *pdev)
"snps,dis_u3_susphy_quirk");
dwc->dis_u2_susphy_quirk = of_property_read_bool(node,
"snps,dis_u2_susphy_quirk");
+ dwc->amd_nl_plat = of_property_read_bool(node,
+ "snps,amd_nl_plat");
dwc->tx_deemph_quirk = of_property_read_bool(node,
"snps,tx_deemph_quirk");
@@ -841,6 +849,7 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->rx_detect_poll_quirk = pdata->rx_detect_poll_quirk;
dwc->dis_u3_susphy_quirk = pdata->dis_u3_susphy_quirk;
dwc->dis_u2_susphy_quirk = pdata->dis_u2_susphy_quirk;
+ dwc->amd_nl_plat = pdata->amd_nl_plat;
dwc->tx_deemph_quirk = pdata->tx_deemph_quirk;
if (pdata->tx_deemph)
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 8b94ad5..b08a2f9 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -699,6 +699,7 @@ struct dwc3_scratchpad_array {
* @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk
* @dis_u3_susphy_quirk: set if we disable usb3 suspend phy
* @dis_u2_susphy_quirk: set if we disable usb2 suspend phy
+ * @amd_nl_plat: set if we use AMD NL platform
* @tx_deemph_quirk: set if we enable Tx deemphasis quirk
* @tx_deemph: Tx deemphasis value
* 0 - -6dB de-emphasis
@@ -822,6 +823,7 @@ struct dwc3 {
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
unsigned dis_u2_susphy_quirk:1;
+ unsigned amd_nl_plat:1;
unsigned tx_deemph_quirk:1;
unsigned tx_deemph:2;
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index ada975f..3af9b47 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -145,6 +145,24 @@ static int dwc3_pci_probe(struct pci_dev *pci,
res[1].name = "dwc_usb3";
res[1].flags = IORESOURCE_IRQ;
+ if (pci->vendor == PCI_VENDOR_ID_AMD &&
+ pci->device == PCI_DEVICE_ID_AMD_NL_USB) {
+ dwc3_pdata.has_lpm_erratum = true;
+ dwc3_pdata.lpm_nyet_thres = 0xf;
+
+ dwc3_pdata.u2exit_lfps_quirk = true;
+ dwc3_pdata.u2ss_inp3_quirk = true;
+ dwc3_pdata.req_p1p2p3_quirk = true;
+ dwc3_pdata.del_p1p2p3_quirk = true;
+ dwc3_pdata.del_phy_power_chg_quirk = true;
+ dwc3_pdata.lfps_filter_quirk = true;
+ dwc3_pdata.rx_detect_poll_quirk = true;
+ dwc3_pdata.amd_nl_plat = true;
+
+ dwc3_pdata.tx_deemph_quirk = true;
+ dwc3_pdata.tx_deemph = 1;
+ }
+
ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
if (ret) {
dev_err(dev, "couldn't add resources to dwc3 device\n");
@@ -194,6 +212,7 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
{ } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h
index 1cfd384..c2c3511 100644
--- a/drivers/usb/dwc3/platform_data.h
+++ b/drivers/usb/dwc3/platform_data.h
@@ -37,6 +37,7 @@ struct dwc3_platform_data {
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
unsigned dis_u2_susphy_quirk:1;
+ unsigned amd_nl_plat:1;
unsigned tx_deemph_quirk:1;
unsigned tx_deemph:2;
--
1.9.1
--
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