linux-kernel - [PATCH v4 2/4] usb: dwc2: add compatible data for rockchip soc

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Message-Id: <1407404095-3265-3-git-send-email-kever.yang@rock-chips.com>
Date:	Thu,  7 Aug 2014 17:34:53 +0800
From:	Kever Yang <kever.yang@...k-chips.com>
To:	Paul Zimmerman <paulz@...opsys.com>, heiko@...ech.de
Cc:	dianders@...omium.org, olof@...om.net, sonnyrao@...omium.org,
	addy.ke@...k-chips.com, cf@...k-chips.com, xjq@...k-chips.com,
	wulf@...k-chips.com, lyz@...k-chips.com, hj@...k-chips.com,
	huangtao@...k-chips.com, Kever Yang <kever.yang@...k-chips.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 2/4] usb: dwc2: add compatible data for rockchip soc

This patch add compatible data for dwc2 controller found on
rk3066, rk3188 and rk3288 processors from rockchip.

Signed-off-by: Kever Yang <kever.yang@...k-chips.com>
Acked-by: Paul Zimmerman <paulz@...opsys.com>
---

Changes in v4:
- max_transfer_size change to 65536, this should be enough
  for most transfer, the hardware auto-detect will set this
  to 0x7ffff which may make dma_alloc_coherent fail when
  non-dword aligned buf from driver like usbnet happen.

Changes in v3: None
Changes in v2:
- set most parameters as driver auto-detect

 drivers/usb/dwc2/platform.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index a10e7a3..832b103 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -75,6 +75,34 @@ static const struct dwc2_core_params params_bcm2835 = {
 	.uframe_sched			= 0,
 };
 
+static const struct dwc2_core_params params_rk3066 = {
+	.otg_cap			= 2,	/* non-HNP/non-SRP */
+	.otg_ver			= -1,
+	.dma_enable			= -1,
+	.dma_desc_enable		= 0,
+	.speed				= -1,
+	.enable_dynamic_fifo		= 1,
+	.en_multiple_tx_fifo		= -1,
+	.host_rx_fifo_size		= 520,	/* 520 DWORDs */
+	.host_nperio_tx_fifo_size	= 128,	/* 128 DWORDs */
+	.host_perio_tx_fifo_size	= 256,	/* 256 DWORDs */
+	.max_transfer_size		= 65536,
+	.max_packet_count		= -1,
+	.host_channels			= -1,
+	.phy_type			= -1,
+	.phy_utmi_width			= -1,
+	.phy_ulpi_ddr			= -1,
+	.phy_ulpi_ext_vbus		= -1,
+	.i2c_enable			= -1,
+	.ulpi_fs_ls			= -1,
+	.host_support_fs_ls_low_power	= -1,
+	.host_ls_low_power_phy_clk	= -1,
+	.ts_dline			= -1,
+	.reload_ctl			= -1,
+	.ahbcfg				= 0x7, /* INCR16 */
+	.uframe_sched			= -1,
+};
+
 /**
  * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the
  * DWC_otg driver
@@ -97,6 +125,7 @@ static int dwc2_driver_remove(struct platform_device *dev)
 
 static const struct of_device_id dwc2_of_match_table[] = {
 	{ .compatible = "brcm,bcm2835-usb", .data = &params_bcm2835 },
+	{ .compatible = "rockchip,rk3066-usb", .data = &params_rk3066 },
 	{ .compatible = "snps,dwc2", .data = NULL },
 	{},
 };
-- 
1.9.1

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