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Diffstat (limited to 'target/linux/ipq806x/patches-4.4/096-07-usb-dwc3-drop-FIFO-resizing-logic.patch')
-rw-r--r--target/linux/ipq806x/patches-4.4/096-07-usb-dwc3-drop-FIFO-resizing-logic.patch242
1 files changed, 0 insertions, 242 deletions
diff --git a/target/linux/ipq806x/patches-4.4/096-07-usb-dwc3-drop-FIFO-resizing-logic.patch b/target/linux/ipq806x/patches-4.4/096-07-usb-dwc3-drop-FIFO-resizing-logic.patch
deleted file mode 100644
index 132d131dfb..0000000000
--- a/target/linux/ipq806x/patches-4.4/096-07-usb-dwc3-drop-FIFO-resizing-logic.patch
+++ /dev/null
@@ -1,242 +0,0 @@
-From bc5081617faeb3b2f0c126dc37264b87af7da47f Mon Sep 17 00:00:00 2001
-From: Felipe Balbi <felipe.balbi@linux.intel.com>
-Date: Thu, 4 Feb 2016 14:18:01 +0200
-Subject: usb: dwc3: drop FIFO resizing logic
-
-That FIFO resizing logic was added to support OMAP5
-ES1.0 which had a bogus default FIFO size. I can't
-remember the exact size of default FIFO, but it was
-less than one bulk superspeed packet (<1024) which
-would prevent USB3 from ever working on OMAP5 ES1.0.
-
-However, OMAP5 ES1.0 support has been dropped by
-commit aa2f4b16f830 ("ARM: OMAP5: id: Remove ES1.0
-support") which renders FIFO resizing unnecessary.
-
-Tested-by: Kishon Vijay Abraham I <kishon@ti.com>
-Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
----
- Documentation/devicetree/bindings/usb/dwc3.txt | 4 +-
- .../devicetree/bindings/usb/qcom,dwc3.txt | 1 -
- drivers/usb/dwc3/core.c | 4 -
- drivers/usb/dwc3/core.h | 5 --
- drivers/usb/dwc3/ep0.c | 9 ---
- drivers/usb/dwc3/gadget.c | 86 ----------------------
- drivers/usb/dwc3/platform_data.h | 1 -
- 7 files changed, 2 insertions(+), 108 deletions(-)
-
---- a/Documentation/devicetree/bindings/usb/dwc3.txt
-+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
-@@ -14,7 +14,6 @@ Optional properties:
- the second element is expected to be a handle to the USB3/SS PHY
- - phys: from the *Generic PHY* bindings
- - phy-names: from the *Generic PHY* bindings
-- - tx-fifo-resize: determines if the FIFO *has* to be reallocated.
- - snps,usb3_lpm_capable: determines if platform is USB3 LPM capable
- - snps,disable_scramble_quirk: true when SW should disable data scrambling.
- Only really useful for FPGA builds.
-@@ -47,6 +46,8 @@ Optional properties:
- register for post-silicon frame length adjustment when the
- fladj_30mhz_sdbnd signal is invalid or incorrect.
-
-+ - <DEPRECATED> tx-fifo-resize: determines if the FIFO *has* to be reallocated.
-+
- This is usually a subnode to DWC3 glue to which it is connected.
-
- dwc3@4a030000 {
-@@ -54,5 +55,4 @@ dwc3@4a030000 {
- reg = <0x4a030000 0xcfff>;
- interrupts = <0 92 4>
- usb-phy = <&usb2_phy>, <&usb3,phy>;
-- tx-fifo-resize;
- };
---- a/Documentation/devicetree/bindings/usb/qcom,dwc3.txt
-+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.txt
-@@ -59,7 +59,6 @@ Example device nodes:
- interrupts = <0 205 0x4>;
- phys = <&hs_phy>, <&ss_phy>;
- phy-names = "usb2-phy", "usb3-phy";
-- tx-fifo-resize;
- dr_mode = "host";
- };
- };
---- a/drivers/usb/dwc3/core.c
-+++ b/drivers/usb/dwc3/core.c
-@@ -882,9 +882,6 @@ static int dwc3_probe(struct platform_de
- dwc->usb3_lpm_capable = device_property_read_bool(dev,
- "snps,usb3_lpm_capable");
-
-- dwc->needs_fifo_resize = device_property_read_bool(dev,
-- "tx-fifo-resize");
--
- dwc->disable_scramble_quirk = device_property_read_bool(dev,
- "snps,disable_scramble_quirk");
- dwc->u2exit_lfps_quirk = device_property_read_bool(dev,
-@@ -926,7 +923,6 @@ static int dwc3_probe(struct platform_de
- if (pdata->hird_threshold)
- hird_threshold = pdata->hird_threshold;
-
-- dwc->needs_fifo_resize = pdata->tx_fifo_resize;
- dwc->usb3_lpm_capable = pdata->usb3_lpm_capable;
- dwc->dr_mode = pdata->dr_mode;
-
---- a/drivers/usb/dwc3/core.h
-+++ b/drivers/usb/dwc3/core.h
-@@ -705,9 +705,7 @@ struct dwc3_scratchpad_array {
- * 0 - utmi_sleep_n
- * 1 - utmi_l1_suspend_n
- * @is_fpga: true when we are using the FPGA board
-- * @needs_fifo_resize: not all users might want fifo resizing, flag it
- * @pullups_connected: true when Run/Stop bit is set
-- * @resize_fifos: tells us it's ok to reconfigure our TxFIFO sizes.
- * @setup_packet_pending: true when there's a Setup Packet in FIFO. Workaround
- * @start_config_issued: true when StartConfig command has been issued
- * @three_stage_setup: set if we perform a three phase setup
-@@ -850,9 +848,7 @@ struct dwc3 {
- unsigned has_lpm_erratum:1;
- unsigned is_utmi_l1_suspend:1;
- unsigned is_fpga:1;
-- unsigned needs_fifo_resize:1;
- unsigned pullups_connected:1;
-- unsigned resize_fifos:1;
- unsigned setup_packet_pending:1;
- unsigned three_stage_setup:1;
- unsigned usb3_lpm_capable:1;
-@@ -1020,7 +1016,6 @@ struct dwc3_gadget_ep_cmd_params {
-
- /* prototypes */
- void dwc3_set_mode(struct dwc3 *dwc, u32 mode);
--int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc);
-
- /* check whether we are on the DWC_usb31 core */
- static inline bool dwc3_is_usb31(struct dwc3 *dwc)
---- a/drivers/usb/dwc3/ep0.c
-+++ b/drivers/usb/dwc3/ep0.c
-@@ -587,9 +587,6 @@ static int dwc3_ep0_set_config(struct dw
- reg = dwc3_readl(dwc->regs, DWC3_DCTL);
- reg |= (DWC3_DCTL_ACCEPTU1ENA | DWC3_DCTL_ACCEPTU2ENA);
- dwc3_writel(dwc->regs, DWC3_DCTL, reg);
--
-- dwc->resize_fifos = true;
-- dwc3_trace(trace_dwc3_ep0, "resize FIFOs flag SET");
- }
- break;
-
-@@ -1028,12 +1025,6 @@ static int dwc3_ep0_start_control_status
-
- static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)
- {
-- if (dwc->resize_fifos) {
-- dwc3_trace(trace_dwc3_ep0, "Resizing FIFOs");
-- dwc3_gadget_resize_tx_fifos(dwc);
-- dwc->resize_fifos = 0;
-- }
--
- WARN_ON(dwc3_ep0_start_control_status(dep));
- }
-
---- a/drivers/usb/dwc3/gadget.c
-+++ b/drivers/usb/dwc3/gadget.c
-@@ -145,92 +145,6 @@ int dwc3_gadget_set_link_state(struct dw
- return -ETIMEDOUT;
- }
-
--/**
-- * dwc3_gadget_resize_tx_fifos - reallocate fifo spaces for current use-case
-- * @dwc: pointer to our context structure
-- *
-- * This function will a best effort FIFO allocation in order
-- * to improve FIFO usage and throughput, while still allowing
-- * us to enable as many endpoints as possible.
-- *
-- * Keep in mind that this operation will be highly dependent
-- * on the configured size for RAM1 - which contains TxFifo -,
-- * the amount of endpoints enabled on coreConsultant tool, and
-- * the width of the Master Bus.
-- *
-- * In the ideal world, we would always be able to satisfy the
-- * following equation:
-- *
-- * ((512 + 2 * MDWIDTH-Bytes) + (Number of IN Endpoints - 1) * \
-- * (3 * (1024 + MDWIDTH-Bytes) + MDWIDTH-Bytes)) / MDWIDTH-Bytes
-- *
-- * Unfortunately, due to many variables that's not always the case.
-- */
--int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc)
--{
-- int last_fifo_depth = 0;
-- int ram1_depth;
-- int fifo_size;
-- int mdwidth;
-- int num;
--
-- if (!dwc->needs_fifo_resize)
-- return 0;
--
-- ram1_depth = DWC3_RAM1_DEPTH(dwc->hwparams.hwparams7);
-- mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0);
--
-- /* MDWIDTH is represented in bits, we need it in bytes */
-- mdwidth >>= 3;
--
-- /*
-- * FIXME For now we will only allocate 1 wMaxPacketSize space
-- * for each enabled endpoint, later patches will come to
-- * improve this algorithm so that we better use the internal
-- * FIFO space
-- */
-- for (num = 0; num < dwc->num_in_eps; num++) {
-- /* bit0 indicates direction; 1 means IN ep */
-- struct dwc3_ep *dep = dwc->eps[(num << 1) | 1];
-- int mult = 1;
-- int tmp;
--
-- if (!(dep->flags & DWC3_EP_ENABLED))
-- continue;
--
-- if (usb_endpoint_xfer_bulk(dep->endpoint.desc)
-- || usb_endpoint_xfer_isoc(dep->endpoint.desc))
-- mult = 3;
--
-- /*
-- * REVISIT: the following assumes we will always have enough
-- * space available on the FIFO RAM for all possible use cases.
-- * Make sure that's true somehow and change FIFO allocation
-- * accordingly.
-- *
-- * If we have Bulk or Isochronous endpoints, we want
-- * them to be able to be very, very fast. So we're giving
-- * those endpoints a fifo_size which is enough for 3 full
-- * packets
-- */
-- tmp = mult * (dep->endpoint.maxpacket + mdwidth);
-- tmp += mdwidth;
--
-- fifo_size = DIV_ROUND_UP(tmp, mdwidth);
--
-- fifo_size |= (last_fifo_depth << 16);
--
-- dwc3_trace(trace_dwc3_gadget, "%s: Fifo Addr %04x Size %d",
-- dep->name, last_fifo_depth, fifo_size & 0xffff);
--
-- dwc3_writel(dwc->regs, DWC3_GTXFIFOSIZ(num), fifo_size);
--
-- last_fifo_depth += (fifo_size & 0xffff);
-- }
--
-- return 0;
--}
--
- void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
- int status)
- {
---- a/drivers/usb/dwc3/platform_data.h
-+++ b/drivers/usb/dwc3/platform_data.h
-@@ -23,7 +23,6 @@
- struct dwc3_platform_data {
- enum usb_device_speed maximum_speed;
- enum usb_dr_mode dr_mode;
-- bool tx_fifo_resize;
- bool usb3_lpm_capable;
-
- unsigned is_utmi_l1_suspend:1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 21:32:10 +0000