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79 lines
2.9 KiB
Diff
79 lines
2.9 KiB
Diff
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From de2cad82c4d0872066f83ce59462603852b47f03 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Fri, 6 Jan 2017 17:55:24 +0100
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Subject: [PATCH 2/2] usb: dwc2: add support for other Lantiq SoCs
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The size of the internal RAM of the DesignWare USB controller changed
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between the different Lantiq SoCs. We have the following sizes:
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Amazon + Danube: 8 KByte
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Amazon SE + arx100: 2 KByte
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xrx200 + xrx300: 2.5 KByte
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For Danube SoC we do not provide the params and let the driver decide
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to use sane defaults, for the Amazon SE and arx100 we use small fifos
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and for the xrx200 and xrx300 SCs a little bit bigger periodic fifo.
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The auto detection of max_transfer_size and max_packet_count should
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work, so remove it.
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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drivers/usb/dwc2/platform.c | 46 ++++++++++++++++++++++++++++++++++++++-------
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1 file changed, 39 insertions(+), 7 deletions(-)
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--- a/drivers/usb/dwc2/params.c
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+++ b/drivers/usb/dwc2/params.c
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@@ -83,7 +83,14 @@ static void dwc2_set_rk_params(struct dw
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GAHBCFG_HBSTLEN_SHIFT;
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}
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-static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)
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+static void dwc2_set_ltq_danube_params(struct dwc2_hsotg *hsotg)
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+{
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+ struct dwc2_core_params *p = &hsotg->params;
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+
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+ p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE;
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+}
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+
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+static void dwc2_set_ltq_ase_params(struct dwc2_hsotg *hsotg)
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{
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struct dwc2_core_params *p = &hsotg->params;
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@@ -91,12 +98,20 @@ static void dwc2_set_ltq_params(struct d
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p->host_rx_fifo_size = 288;
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p->host_nperio_tx_fifo_size = 128;
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p->host_perio_tx_fifo_size = 96;
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- p->max_transfer_size = 65535;
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- p->max_packet_count = 511;
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p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
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GAHBCFG_HBSTLEN_SHIFT;
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}
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+static void dwc2_set_ltq_xrx200_params(struct dwc2_hsotg *hsotg)
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+{
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+ struct dwc2_core_params *p = &hsotg->params;
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+
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+ p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE;
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+ p->host_rx_fifo_size = 288;
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+ p->host_nperio_tx_fifo_size = 128;
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+ p->host_perio_tx_fifo_size = 136;
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+}
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+
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static void dwc2_set_amlogic_params(struct dwc2_hsotg *hsotg)
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{
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struct dwc2_core_params *p = &hsotg->params;
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@@ -140,8 +155,11 @@ const struct of_device_id dwc2_of_match_
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{ .compatible = "brcm,bcm2835-usb", .data = dwc2_set_bcm_params },
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{ .compatible = "hisilicon,hi6220-usb", .data = dwc2_set_his_params },
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{ .compatible = "rockchip,rk3066-usb", .data = dwc2_set_rk_params },
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- { .compatible = "lantiq,arx100-usb", .data = dwc2_set_ltq_params },
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- { .compatible = "lantiq,xrx200-usb", .data = dwc2_set_ltq_params },
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+ { .compatible = "lantiq,danube-usb", .data = &dwc2_set_ltq_danube_params },
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+ { .compatible = "lantiq,ase-usb", .data = &dwc2_set_ltq_ase_params },
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+ { .compatible = "lantiq,arx100-usb", .data = &dwc2_set_ltq_ase_params },
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+ { .compatible = "lantiq,xrx200-usb", .data = &dwc2_set_ltq_xrx200_params },
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+ { .compatible = "lantiq,xrx300-usb", .data = &dwc2_set_ltq_xrx200_params },
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{ .compatible = "snps,dwc2" },
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{ .compatible = "samsung,s3c6400-hsotg" },
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{ .compatible = "amlogic,meson8-usb",
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