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linux/drivers/usb/dwc2/params.c

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usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
/*
* Copyright (C) 2004-2016 Synopsys, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include "core.h"
static const struct dwc2_core_params params_hi6220 = {
.otg_cap = 2, /* No HNP/SRP capable */
.dma_desc_enable = 0,
.dma_desc_fs_enable = 0,
.speed = 0, /* High Speed */
.enable_dynamic_fifo = 1,
.en_multiple_tx_fifo = 1,
.host_rx_fifo_size = 512,
.host_nperio_tx_fifo_size = 512,
.host_perio_tx_fifo_size = 512,
.max_transfer_size = 65535,
.max_packet_count = 511,
.host_channels = 16,
.phy_type = 1, /* UTMI */
.phy_utmi_width = 8,
.phy_ulpi_ddr = 0, /* Single */
.phy_ulpi_ext_vbus = 0,
.i2c_enable = 0,
.ulpi_fs_ls = 0,
.host_support_fs_ls_low_power = 0,
.host_ls_low_power_phy_clk = 0, /* 48 MHz */
.ts_dline = 0,
.reload_ctl = 0,
.ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
GAHBCFG_HBSTLEN_SHIFT,
.uframe_sched = 0,
.external_id_pin_ctl = -1,
.hibernation = -1,
};
static const struct dwc2_core_params params_bcm2835 = {
.otg_cap = 0, /* HNP/SRP capable */
.dma_desc_enable = 0,
.dma_desc_fs_enable = 0,
.speed = 0, /* High Speed */
.enable_dynamic_fifo = 1,
.en_multiple_tx_fifo = 1,
.host_rx_fifo_size = 774, /* 774 DWORDs */
.host_nperio_tx_fifo_size = 256, /* 256 DWORDs */
.host_perio_tx_fifo_size = 512, /* 512 DWORDs */
.max_transfer_size = 65535,
.max_packet_count = 511,
.host_channels = 8,
.phy_type = 1, /* UTMI */
.phy_utmi_width = 8, /* 8 bits */
.phy_ulpi_ddr = 0, /* Single */
.phy_ulpi_ext_vbus = 0,
.i2c_enable = 0,
.ulpi_fs_ls = 0,
.host_support_fs_ls_low_power = 0,
.host_ls_low_power_phy_clk = 0, /* 48 MHz */
.ts_dline = 0,
.reload_ctl = 0,
.ahbcfg = 0x10,
.uframe_sched = 0,
.external_id_pin_ctl = -1,
.hibernation = -1,
};
static const struct dwc2_core_params params_rk3066 = {
.otg_cap = 2, /* non-HNP/non-SRP */
.dma_desc_enable = 0,
.dma_desc_fs_enable = 0,
.speed = -1,
.enable_dynamic_fifo = 1,
.en_multiple_tx_fifo = -1,
.host_rx_fifo_size = 525, /* 525 DWORDs */
.host_nperio_tx_fifo_size = 128, /* 128 DWORDs */
.host_perio_tx_fifo_size = 256, /* 256 DWORDs */
.max_transfer_size = -1,
.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 = GAHBCFG_HBSTLEN_INCR16 <<
GAHBCFG_HBSTLEN_SHIFT,
.uframe_sched = -1,
.external_id_pin_ctl = -1,
.hibernation = -1,
};
static const struct dwc2_core_params params_ltq = {
.otg_cap = 2, /* non-HNP/non-SRP */
.dma_desc_enable = -1,
.dma_desc_fs_enable = -1,
.speed = -1,
.enable_dynamic_fifo = -1,
.en_multiple_tx_fifo = -1,
.host_rx_fifo_size = 288, /* 288 DWORDs */
.host_nperio_tx_fifo_size = 128, /* 128 DWORDs */
.host_perio_tx_fifo_size = 96, /* 96 DWORDs */
.max_transfer_size = 65535,
.max_packet_count = 511,
.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 = GAHBCFG_HBSTLEN_INCR16 <<
GAHBCFG_HBSTLEN_SHIFT,
.uframe_sched = -1,
.external_id_pin_ctl = -1,
.hibernation = -1,
};
static const struct dwc2_core_params params_amlogic = {
.otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE,
.dma_desc_enable = 0,
.dma_desc_fs_enable = 0,
.speed = DWC2_SPEED_PARAM_HIGH,
.enable_dynamic_fifo = 1,
.en_multiple_tx_fifo = -1,
.host_rx_fifo_size = 512,
.host_nperio_tx_fifo_size = 500,
.host_perio_tx_fifo_size = 500,
.max_transfer_size = -1,
.max_packet_count = -1,
.host_channels = 16,
.phy_type = DWC2_PHY_TYPE_PARAM_UTMI,
.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 = GAHBCFG_HBSTLEN_INCR8 <<
GAHBCFG_HBSTLEN_SHIFT,
.uframe_sched = 0,
.external_id_pin_ctl = -1,
.hibernation = -1,
};
const struct of_device_id dwc2_of_match_table[] = {
{ .compatible = "brcm,bcm2835-usb", .data = &params_bcm2835 },
{ .compatible = "hisilicon,hi6220-usb", .data = &params_hi6220 },
{ .compatible = "rockchip,rk3066-usb", .data = &params_rk3066 },
{ .compatible = "lantiq,arx100-usb", .data = &params_ltq },
{ .compatible = "lantiq,xrx200-usb", .data = &params_ltq },
{ .compatible = "snps,dwc2", .data = NULL },
{ .compatible = "samsung,s3c6400-hsotg", .data = NULL},
{ .compatible = "amlogic,meson8b-usb", .data = &params_amlogic },
{ .compatible = "amlogic,meson-gxbb-usb", .data = &params_amlogic },
usb: dwc2: add amcc,dwc-otg support This patch adds support for the "amcc,usb-otg" device which is found in the PowerPC Canyonlands' dts. The device definition was added by: commit c89b3458d8cc ("powerpc/44x: Add USB DWC DTS entry to Canyonlands board") but without any driver support as the dwc2 driver wasn't available at that time. Note: The system can't use the generic "snps,dwc2" compatible because of the special ahbcfg configuration. The default GAHBCFG_HBSTLEN_INCR4 of snps,dwc2 can cause a system hang when the USB and SATA is used concurrently. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-15 15:03:40 -08:00
{ .compatible = "amcc,dwc-otg", .data = NULL },
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
{},
};
MODULE_DEVICE_TABLE(of, dwc2_of_match_table);
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
static void dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg)
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
{
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
u8 val;
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
switch (hsotg->hw_params.op_mode) {
case GHWCFG2_OP_MODE_HNP_SRP_CAPABLE:
val = DWC2_CAP_PARAM_HNP_SRP_CAPABLE;
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
break;
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
case GHWCFG2_OP_MODE_SRP_ONLY_CAPABLE:
case GHWCFG2_OP_MODE_SRP_CAPABLE_DEVICE:
case GHWCFG2_OP_MODE_SRP_CAPABLE_HOST:
val = DWC2_CAP_PARAM_SRP_ONLY_CAPABLE;
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
break;
default:
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
val = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE;
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
break;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
}
usb: dwc2: Declare the core params struct statically This makes it consistent with the hw_params struct and simplifies the memory management for future refactoring. Fix up usage in all files. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:53 -07:00
hsotg->params.otg_cap = val;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
}
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
static void dwc2_set_param_phy_type(struct dwc2_hsotg *hsotg)
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
{
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
int val;
u32 hs_phy_type = hsotg->hw_params.hs_phy_type;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
val = DWC2_PHY_TYPE_PARAM_FS;
if (hs_phy_type != GHWCFG2_HS_PHY_TYPE_NOT_SUPPORTED) {
if (hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI ||
hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI)
val = DWC2_PHY_TYPE_PARAM_UTMI;
else
val = DWC2_PHY_TYPE_PARAM_ULPI;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
}
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
if (dwc2_is_fs_iot(hsotg))
hsotg->params.phy_type = DWC2_PHY_TYPE_PARAM_FS;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Declare the core params struct statically This makes it consistent with the hw_params struct and simplifies the memory management for future refactoring. Fix up usage in all files. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:53 -07:00
hsotg->params.phy_type = val;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
}
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
static void dwc2_set_param_speed(struct dwc2_hsotg *hsotg)
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
{
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
int val;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
val = hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_FS ?
DWC2_SPEED_PARAM_FULL : DWC2_SPEED_PARAM_HIGH;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
if (dwc2_is_fs_iot(hsotg))
val = DWC2_SPEED_PARAM_FULL;
usb: dwc2: gadget: Add new core parameter for low speed Added new core param for low speed, which can be used only when SNPSID is equal to DWC2_CORE_FS_IOT. When LS mode is enabled, we are restricting ep types and providing to upper layer only INTR and CTRL endpoints. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-14 19:17:03 -08:00
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
if (dwc2_is_hs_iot(hsotg))
val = DWC2_SPEED_PARAM_HIGH;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Declare the core params struct statically This makes it consistent with the hw_params struct and simplifies the memory management for future refactoring. Fix up usage in all files. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:53 -07:00
hsotg->params.speed = val;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
}
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
static void dwc2_set_param_phy_utmi_width(struct dwc2_hsotg *hsotg)
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
{
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
int val;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
val = (hsotg->hw_params.utmi_phy_data_width ==
GHWCFG4_UTMI_PHY_DATA_WIDTH_8) ? 8 : 16;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Declare the core params struct statically This makes it consistent with the hw_params struct and simplifies the memory management for future refactoring. Fix up usage in all files. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:53 -07:00
hsotg->params.phy_utmi_width = val;
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
}
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
static void dwc2_set_param_tx_fifo_sizes(struct dwc2_hsotg *hsotg)
{
struct dwc2_core_params *p = &hsotg->params;
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
u32 p_tx_fifo[] = DWC2_G_P_LEGACY_TX_FIFO_SIZE;
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
memset(p->g_tx_fifo_size, 0, sizeof(p->g_tx_fifo_size));
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
memcpy(&p->g_tx_fifo_size[1],
p_tx_fifo,
sizeof(p_tx_fifo));
usb: dwc2: Deprecate g-use-dma binding This is not needed as the gadget now fully supports DMA and it can autodetect it. This was initially added because gadget DMA mode was only partially implemented so could not be automatically enabled. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-09 19:27:40 -08:00
}
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
/**
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
* dwc2_set_default_params() - Set all core parameters to their
* auto-detected default values.
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
*/
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
{
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
struct dwc2_hw_params *hw = &hsotg->hw_params;
struct dwc2_core_params *p = &hsotg->params;
usb: dwc2: Get host DMA device properties The driver will automatically enable host DMA and use it if available. This is consistent with the behavior of all existing platforms. Read in the "snps,host-dma-disable" device property to disable it. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:12 -07:00
bool dma_capable = !(hw->arch == GHWCFG2_SLAVE_ONLY_ARCH);
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
dwc2_set_param_otg_cap(hsotg);
dwc2_set_param_phy_type(hsotg);
dwc2_set_param_speed(hsotg);
dwc2_set_param_phy_utmi_width(hsotg);
p->phy_ulpi_ddr = false;
p->phy_ulpi_ext_vbus = false;
p->enable_dynamic_fifo = hw->enable_dynamic_fifo;
p->en_multiple_tx_fifo = hw->en_multiple_tx_fifo;
p->i2c_enable = hw->i2c_enable;
p->ulpi_fs_ls = false;
p->ts_dline = false;
p->reload_ctl = (hw->snpsid >= DWC2_CORE_REV_2_92a);
p->uframe_sched = true;
p->external_id_pin_ctl = false;
p->hibernation = false;
p->max_packet_count = hw->max_packet_count;
p->max_transfer_size = hw->max_transfer_size;
p->ahbcfg = GAHBCFG_HBSTLEN_INCR4 << GAHBCFG_HBSTLEN_SHIFT;
usb: dwc2: Get host DMA device properties The driver will automatically enable host DMA and use it if available. This is consistent with the behavior of all existing platforms. Read in the "snps,host-dma-disable" device property to disable it. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:12 -07:00
if ((hsotg->dr_mode == USB_DR_MODE_HOST) ||
(hsotg->dr_mode == USB_DR_MODE_OTG)) {
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
p->host_dma = dma_capable;
p->dma_desc_enable = false;
p->dma_desc_fs_enable = false;
p->host_support_fs_ls_low_power = false;
p->host_ls_low_power_phy_clk = false;
p->host_channels = hw->host_channels;
p->host_rx_fifo_size = hw->rx_fifo_size;
p->host_nperio_tx_fifo_size = hw->host_nperio_tx_fifo_size;
p->host_perio_tx_fifo_size = hw->host_perio_tx_fifo_size;
usb: dwc2: Get host DMA device properties The driver will automatically enable host DMA and use it if available. This is consistent with the behavior of all existing platforms. Read in the "snps,host-dma-disable" device property to disable it. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:12 -07:00
}
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
if ((hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) ||
(hsotg->dr_mode == USB_DR_MODE_OTG)) {
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
p->g_dma = dma_capable;
p->g_dma_desc = hw->dma_desc_enable;
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
/*
* The values for g_rx_fifo_size (2048) and
* g_np_tx_fifo_size (1024) come from the legacy s3c
* gadget driver. These defaults have been hard-coded
* for some time so many platforms depend on these
* values. Leave them as defaults for now and only
* auto-detect if the hardware does not support the
* default.
*/
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
p->g_rx_fifo_size = 2048;
p->g_np_tx_fifo_size = 1024;
usb: dwc2: Move gadget settings into core_params Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:05 -07:00
dwc2_set_param_tx_fifo_sizes(hsotg);
}
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
}
usb: dwc2: Get device properties After setting the default core parameter values, read in the device properties and modify core parameter values if needed. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:35 -08:00
/**
* dwc2_get_device_properties() - Read in device properties.
*
* Read in the device properties and adjust core parameters if needed.
*/
static void dwc2_get_device_properties(struct dwc2_hsotg *hsotg)
{
struct dwc2_core_params *p = &hsotg->params;
int num;
if ((hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) ||
(hsotg->dr_mode == USB_DR_MODE_OTG)) {
device_property_read_u32(hsotg->dev, "g-rx-fifo-size",
&p->g_rx_fifo_size);
device_property_read_u32(hsotg->dev, "g-np-tx-fifo-size",
&p->g_np_tx_fifo_size);
num = device_property_read_u32_array(hsotg->dev,
"g-tx-fifo-size",
NULL, 0);
if (num > 0) {
num = min(num, 15);
memset(p->g_tx_fifo_size, 0,
sizeof(p->g_tx_fifo_size));
device_property_read_u32_array(hsotg->dev,
"g-tx-fifo-size",
&p->g_tx_fifo_size[1],
num);
}
}
}
usb: dwc2: Check core parameters Check that core parameters have valid values and adjust them if they aren't. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:56:43 -08:00
static void dwc2_check_param_otg_cap(struct dwc2_hsotg *hsotg)
{
int valid = 1;
switch (hsotg->params.otg_cap) {
case DWC2_CAP_PARAM_HNP_SRP_CAPABLE:
if (hsotg->hw_params.op_mode != GHWCFG2_OP_MODE_HNP_SRP_CAPABLE)
valid = 0;
break;
case DWC2_CAP_PARAM_SRP_ONLY_CAPABLE:
switch (hsotg->hw_params.op_mode) {
case GHWCFG2_OP_MODE_HNP_SRP_CAPABLE:
case GHWCFG2_OP_MODE_SRP_ONLY_CAPABLE:
case GHWCFG2_OP_MODE_SRP_CAPABLE_DEVICE:
case GHWCFG2_OP_MODE_SRP_CAPABLE_HOST:
break;
default:
valid = 0;
break;
}
break;
case DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE:
/* always valid */
break;
default:
valid = 0;
break;
}
if (!valid)
dwc2_set_param_otg_cap(hsotg);
}
static void dwc2_check_param_phy_type(struct dwc2_hsotg *hsotg)
{
int valid = 0;
u32 hs_phy_type;
u32 fs_phy_type;
hs_phy_type = hsotg->hw_params.hs_phy_type;
fs_phy_type = hsotg->hw_params.fs_phy_type;
switch (hsotg->params.phy_type) {
case DWC2_PHY_TYPE_PARAM_FS:
if (fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED)
valid = 1;
break;
case DWC2_PHY_TYPE_PARAM_UTMI:
if ((hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI) ||
(hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI))
valid = 1;
break;
case DWC2_PHY_TYPE_PARAM_ULPI:
if ((hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI) ||
(hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI))
valid = 1;
break;
default:
break;
}
if (!valid)
dwc2_set_param_phy_type(hsotg);
}
static void dwc2_check_param_speed(struct dwc2_hsotg *hsotg)
{
int valid = 1;
int phy_type = hsotg->params.phy_type;
int speed = hsotg->params.speed;
switch (speed) {
case DWC2_SPEED_PARAM_HIGH:
if ((hsotg->params.speed == DWC2_SPEED_PARAM_HIGH) &&
(phy_type == DWC2_PHY_TYPE_PARAM_FS))
valid = 0;
break;
case DWC2_SPEED_PARAM_FULL:
case DWC2_SPEED_PARAM_LOW:
break;
default:
valid = 0;
break;
}
if (!valid)
dwc2_set_param_speed(hsotg);
}
static void dwc2_check_param_phy_utmi_width(struct dwc2_hsotg *hsotg)
{
int valid = 0;
int param = hsotg->params.phy_utmi_width;
int width = hsotg->hw_params.utmi_phy_data_width;
switch (width) {
case GHWCFG4_UTMI_PHY_DATA_WIDTH_8:
valid = (param == 8);
break;
case GHWCFG4_UTMI_PHY_DATA_WIDTH_16:
valid = (param == 16);
break;
case GHWCFG4_UTMI_PHY_DATA_WIDTH_8_OR_16:
valid = (param == 8 || param == 16);
break;
}
if (!valid)
dwc2_set_param_phy_utmi_width(hsotg);
}
#define CHECK_RANGE(_param, _min, _max, _def) do { \
if ((hsotg->params._param) < (_min) || \
(hsotg->params._param) > (_max)) { \
dev_warn(hsotg->dev, "%s: Invalid parameter %s=%d\n", \
__func__, #_param, hsotg->params._param); \
hsotg->params._param = (_def); \
} \
} while (0)
#define CHECK_BOOL(_param, _check) do { \
if (hsotg->params._param && !(_check)) { \
dev_warn(hsotg->dev, "%s: Invalid parameter %s=%d\n", \
__func__, #_param, hsotg->params._param); \
hsotg->params._param = false; \
} \
} while (0)
static void dwc2_check_params(struct dwc2_hsotg *hsotg)
{
struct dwc2_hw_params *hw = &hsotg->hw_params;
struct dwc2_core_params *p = &hsotg->params;
bool dma_capable = !(hw->arch == GHWCFG2_SLAVE_ONLY_ARCH);
dwc2_check_param_otg_cap(hsotg);
dwc2_check_param_phy_type(hsotg);
dwc2_check_param_speed(hsotg);
dwc2_check_param_phy_utmi_width(hsotg);
CHECK_BOOL(enable_dynamic_fifo, hw->enable_dynamic_fifo);
CHECK_BOOL(en_multiple_tx_fifo, hw->en_multiple_tx_fifo);
CHECK_BOOL(i2c_enable, hw->i2c_enable);
CHECK_BOOL(reload_ctl, (hsotg->hw_params.snpsid > DWC2_CORE_REV_2_92a));
CHECK_RANGE(max_packet_count,
15, hw->max_packet_count,
hw->max_packet_count);
CHECK_RANGE(max_transfer_size,
2047, hw->max_transfer_size,
hw->max_transfer_size);
if ((hsotg->dr_mode == USB_DR_MODE_HOST) ||
(hsotg->dr_mode == USB_DR_MODE_OTG)) {
CHECK_BOOL(host_dma, dma_capable);
CHECK_BOOL(dma_desc_enable, p->host_dma);
CHECK_BOOL(dma_desc_fs_enable, p->dma_desc_enable);
CHECK_BOOL(host_ls_low_power_phy_clk,
p->phy_type == DWC2_PHY_TYPE_PARAM_FS);
CHECK_RANGE(host_channels,
1, hw->host_channels,
hw->host_channels);
CHECK_RANGE(host_rx_fifo_size,
16, hw->rx_fifo_size,
hw->rx_fifo_size);
CHECK_RANGE(host_nperio_tx_fifo_size,
16, hw->host_nperio_tx_fifo_size,
hw->host_nperio_tx_fifo_size);
CHECK_RANGE(host_perio_tx_fifo_size,
16, hw->host_perio_tx_fifo_size,
hw->host_perio_tx_fifo_size);
}
if ((hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) ||
(hsotg->dr_mode == USB_DR_MODE_OTG)) {
CHECK_BOOL(g_dma, dma_capable);
CHECK_BOOL(g_dma_desc, (p->g_dma && hw->dma_desc_enable));
CHECK_RANGE(g_rx_fifo_size,
16, hw->rx_fifo_size,
hw->rx_fifo_size);
CHECK_RANGE(g_np_tx_fifo_size,
16, hw->dev_nperio_tx_fifo_size,
hw->dev_nperio_tx_fifo_size);
}
}
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
/*
* Gets host hardware parameters. Forces host mode if not currently in
* host mode. Should be called immediately after a core soft reset in
* order to get the reset values.
*/
static void dwc2_get_host_hwparams(struct dwc2_hsotg *hsotg)
{
struct dwc2_hw_params *hw = &hsotg->hw_params;
u32 gnptxfsiz;
u32 hptxfsiz;
bool forced;
if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
return;
forced = dwc2_force_mode_if_needed(hsotg, true);
gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ);
dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz);
dev_dbg(hsotg->dev, "hptxfsiz=%08x\n", hptxfsiz);
if (forced)
dwc2_clear_force_mode(hsotg);
hw->host_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >>
FIFOSIZE_DEPTH_SHIFT;
hw->host_perio_tx_fifo_size = (hptxfsiz & FIFOSIZE_DEPTH_MASK) >>
FIFOSIZE_DEPTH_SHIFT;
}
/*
* Gets device hardware parameters. Forces device mode if not
* currently in device mode. Should be called immediately after a core
* soft reset in order to get the reset values.
*/
static void dwc2_get_dev_hwparams(struct dwc2_hsotg *hsotg)
{
struct dwc2_hw_params *hw = &hsotg->hw_params;
bool forced;
u32 gnptxfsiz;
if (hsotg->dr_mode == USB_DR_MODE_HOST)
return;
forced = dwc2_force_mode_if_needed(hsotg, false);
gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz);
if (forced)
dwc2_clear_force_mode(hsotg);
hw->dev_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >>
FIFOSIZE_DEPTH_SHIFT;
}
/**
* During device initialization, read various hardware configuration
* registers and interpret the contents.
*/
int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
{
struct dwc2_hw_params *hw = &hsotg->hw_params;
unsigned int width;
u32 hwcfg1, hwcfg2, hwcfg3, hwcfg4;
u32 grxfsiz;
/*
* Attempt to ensure this device is really a DWC_otg Controller.
* Read and verify the GSNPSID register contents. The value should be
* 0x45f42xxx or 0x45f43xxx, which corresponds to either "OT2" or "OT3",
* as in "OTG version 2.xx" or "OTG version 3.xx".
*/
hw->snpsid = dwc2_readl(hsotg->regs + GSNPSID);
if ((hw->snpsid & 0xfffff000) != 0x4f542000 &&
usb: dwc2: gadget: Add IOT device IDs, configure core accordingly Add new device IDs for IOT gadget. Done changes in probe to configure core accordingly depending on device ID value. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-14 19:16:58 -08:00
(hw->snpsid & 0xfffff000) != 0x4f543000 &&
(hw->snpsid & 0xffff0000) != 0x55310000 &&
(hw->snpsid & 0xffff0000) != 0x55320000) {
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
dev_err(hsotg->dev, "Bad value for GSNPSID: 0x%08x\n",
hw->snpsid);
return -ENODEV;
}
dev_dbg(hsotg->dev, "Core Release: %1x.%1x%1x%1x (snpsid=%x)\n",
hw->snpsid >> 12 & 0xf, hw->snpsid >> 8 & 0xf,
hw->snpsid >> 4 & 0xf, hw->snpsid & 0xf, hw->snpsid);
hwcfg1 = dwc2_readl(hsotg->regs + GHWCFG1);
hwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2);
hwcfg3 = dwc2_readl(hsotg->regs + GHWCFG3);
hwcfg4 = dwc2_readl(hsotg->regs + GHWCFG4);
grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ);
dev_dbg(hsotg->dev, "hwcfg1=%08x\n", hwcfg1);
dev_dbg(hsotg->dev, "hwcfg2=%08x\n", hwcfg2);
dev_dbg(hsotg->dev, "hwcfg3=%08x\n", hwcfg3);
dev_dbg(hsotg->dev, "hwcfg4=%08x\n", hwcfg4);
dev_dbg(hsotg->dev, "grxfsiz=%08x\n", grxfsiz);
/*
* Host specific hardware parameters. Reading these parameters
* requires the controller to be in host mode. The mode will
* be forced, if necessary, to read these values.
*/
dwc2_get_host_hwparams(hsotg);
dwc2_get_dev_hwparams(hsotg);
/* hwcfg1 */
hw->dev_ep_dirs = hwcfg1;
/* hwcfg2 */
hw->op_mode = (hwcfg2 & GHWCFG2_OP_MODE_MASK) >>
GHWCFG2_OP_MODE_SHIFT;
hw->arch = (hwcfg2 & GHWCFG2_ARCHITECTURE_MASK) >>
GHWCFG2_ARCHITECTURE_SHIFT;
hw->enable_dynamic_fifo = !!(hwcfg2 & GHWCFG2_DYNAMIC_FIFO);
hw->host_channels = 1 + ((hwcfg2 & GHWCFG2_NUM_HOST_CHAN_MASK) >>
GHWCFG2_NUM_HOST_CHAN_SHIFT);
hw->hs_phy_type = (hwcfg2 & GHWCFG2_HS_PHY_TYPE_MASK) >>
GHWCFG2_HS_PHY_TYPE_SHIFT;
hw->fs_phy_type = (hwcfg2 & GHWCFG2_FS_PHY_TYPE_MASK) >>
GHWCFG2_FS_PHY_TYPE_SHIFT;
hw->num_dev_ep = (hwcfg2 & GHWCFG2_NUM_DEV_EP_MASK) >>
GHWCFG2_NUM_DEV_EP_SHIFT;
hw->nperio_tx_q_depth =
(hwcfg2 & GHWCFG2_NONPERIO_TX_Q_DEPTH_MASK) >>
GHWCFG2_NONPERIO_TX_Q_DEPTH_SHIFT << 1;
hw->host_perio_tx_q_depth =
(hwcfg2 & GHWCFG2_HOST_PERIO_TX_Q_DEPTH_MASK) >>
GHWCFG2_HOST_PERIO_TX_Q_DEPTH_SHIFT << 1;
hw->dev_token_q_depth =
(hwcfg2 & GHWCFG2_DEV_TOKEN_Q_DEPTH_MASK) >>
GHWCFG2_DEV_TOKEN_Q_DEPTH_SHIFT;
/* hwcfg3 */
width = (hwcfg3 & GHWCFG3_XFER_SIZE_CNTR_WIDTH_MASK) >>
GHWCFG3_XFER_SIZE_CNTR_WIDTH_SHIFT;
hw->max_transfer_size = (1 << (width + 11)) - 1;
width = (hwcfg3 & GHWCFG3_PACKET_SIZE_CNTR_WIDTH_MASK) >>
GHWCFG3_PACKET_SIZE_CNTR_WIDTH_SHIFT;
hw->max_packet_count = (1 << (width + 4)) - 1;
hw->i2c_enable = !!(hwcfg3 & GHWCFG3_I2C);
hw->total_fifo_size = (hwcfg3 & GHWCFG3_DFIFO_DEPTH_MASK) >>
GHWCFG3_DFIFO_DEPTH_SHIFT;
/* hwcfg4 */
hw->en_multiple_tx_fifo = !!(hwcfg4 & GHWCFG4_DED_FIFO_EN);
hw->num_dev_perio_in_ep = (hwcfg4 & GHWCFG4_NUM_DEV_PERIO_IN_EP_MASK) >>
GHWCFG4_NUM_DEV_PERIO_IN_EP_SHIFT;
hw->dma_desc_enable = !!(hwcfg4 & GHWCFG4_DESC_DMA);
hw->power_optimized = !!(hwcfg4 & GHWCFG4_POWER_OPTIMIZ);
hw->utmi_phy_data_width = (hwcfg4 & GHWCFG4_UTMI_PHY_DATA_WIDTH_MASK) >>
GHWCFG4_UTMI_PHY_DATA_WIDTH_SHIFT;
/* fifo sizes */
usb: dwc2: Rename host_rx_fifo_size hardware parameter This hardware parameter is not host specific. It also applies to device mode. Drop the "host" from the name to make that clear. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:02 -07:00
hw->rx_fifo_size = (grxfsiz & GRXFSIZ_DEPTH_MASK) >>
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
GRXFSIZ_DEPTH_SHIFT;
dev_dbg(hsotg->dev, "Detected values from hardware:\n");
dev_dbg(hsotg->dev, " op_mode=%d\n",
hw->op_mode);
dev_dbg(hsotg->dev, " arch=%d\n",
hw->arch);
dev_dbg(hsotg->dev, " dma_desc_enable=%d\n",
hw->dma_desc_enable);
dev_dbg(hsotg->dev, " power_optimized=%d\n",
hw->power_optimized);
dev_dbg(hsotg->dev, " i2c_enable=%d\n",
hw->i2c_enable);
dev_dbg(hsotg->dev, " hs_phy_type=%d\n",
hw->hs_phy_type);
dev_dbg(hsotg->dev, " fs_phy_type=%d\n",
hw->fs_phy_type);
dev_dbg(hsotg->dev, " utmi_phy_data_width=%d\n",
hw->utmi_phy_data_width);
dev_dbg(hsotg->dev, " num_dev_ep=%d\n",
hw->num_dev_ep);
dev_dbg(hsotg->dev, " num_dev_perio_in_ep=%d\n",
hw->num_dev_perio_in_ep);
dev_dbg(hsotg->dev, " host_channels=%d\n",
hw->host_channels);
dev_dbg(hsotg->dev, " max_transfer_size=%d\n",
hw->max_transfer_size);
dev_dbg(hsotg->dev, " max_packet_count=%d\n",
hw->max_packet_count);
dev_dbg(hsotg->dev, " nperio_tx_q_depth=0x%0x\n",
hw->nperio_tx_q_depth);
dev_dbg(hsotg->dev, " host_perio_tx_q_depth=0x%0x\n",
hw->host_perio_tx_q_depth);
dev_dbg(hsotg->dev, " dev_token_q_depth=0x%0x\n",
hw->dev_token_q_depth);
dev_dbg(hsotg->dev, " enable_dynamic_fifo=%d\n",
hw->enable_dynamic_fifo);
dev_dbg(hsotg->dev, " en_multiple_tx_fifo=%d\n",
hw->en_multiple_tx_fifo);
dev_dbg(hsotg->dev, " total_fifo_size=%d\n",
hw->total_fifo_size);
usb: dwc2: Rename host_rx_fifo_size hardware parameter This hardware parameter is not host specific. It also applies to device mode. Drop the "host" from the name to make that clear. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:56:02 -07:00
dev_dbg(hsotg->dev, " rx_fifo_size=%d\n",
hw->rx_fifo_size);
usb: dwc2: Add params.c file Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:50 -07:00
dev_dbg(hsotg->dev, " host_nperio_tx_fifo_size=%d\n",
hw->host_nperio_tx_fifo_size);
dev_dbg(hsotg->dev, " host_perio_tx_fifo_size=%d\n",
hw->host_perio_tx_fifo_size);
dev_dbg(hsotg->dev, "\n");
return 0;
}
usb: dwc2: Move parameter initialization into params.c Consolidate and move all the parameter initialization code from the probe function to params.c. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:55 -07:00
int dwc2_init_params(struct dwc2_hsotg *hsotg)
{
usb: dwc2: Set core parameters to default values Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:14 -08:00
dwc2_set_default_params(hsotg);
usb: dwc2: Get device properties After setting the default core parameter values, read in the device properties and modify core parameter values if needed. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:55:35 -08:00
dwc2_get_device_properties(hsotg);
usb: dwc2: Move parameter initialization into params.c Consolidate and move all the parameter initialization code from the probe function to params.c. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:55 -07:00
usb: dwc2: Check core parameters Check that core parameters have valid values and adjust them if they aren't. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-23 14:56:43 -08:00
dwc2_check_params(hsotg);
usb: dwc2: Move parameter initialization into params.c Consolidate and move all the parameter initialization code from the probe function to params.c. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 17:55:55 -07:00
return 0;
}
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