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linux/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c

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phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Broadcom */
/*
* This module contains USB PHY initialization for power up and S3 resume
* for newer Synopsys based USB hardware first used on the bcm7216.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/soc/brcmstb/brcmstb.h>
#include "phy-brcm-usb-init.h"
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
#define PHY_LOCK_TIMEOUT_MS 200
/* Register definitions for syscon piarbctl registers */
#define PIARBCTL_CAM 0x00
#define PIARBCTL_SPLITTER 0x04
#define PIARBCTL_MISC 0x08
#define PIARBCTL_MISC_SECURE_MASK 0x80000000
#define PIARBCTL_MISC_USB_SELECT_MASK 0x40000000
#define PIARBCTL_MISC_USB_4G_SDRAM_MASK 0x20000000
#define PIARBCTL_MISC_USB_PRIORITY_MASK 0x000f0000
#define PIARBCTL_MISC_USB_MEM_PAGE_MASK 0x0000f000
#define PIARBCTL_MISC_CAM1_MEM_PAGE_MASK 0x00000f00
#define PIARBCTL_MISC_CAM0_MEM_PAGE_MASK 0x000000f0
#define PIARBCTL_MISC_SATA_PRIORITY_MASK 0x0000000f
#define PIARBCTL_MISC_USB_ONLY_MASK \
(PIARBCTL_MISC_USB_SELECT_MASK | \
PIARBCTL_MISC_USB_4G_SDRAM_MASK | \
PIARBCTL_MISC_USB_PRIORITY_MASK | \
PIARBCTL_MISC_USB_MEM_PAGE_MASK)
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
/* Register definitions for the USB CTRL block */
#define USB_CTRL_SETUP 0x00
#define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000
#define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
#define USB_CTRL_SETUP_tca_drv_sel_MASK 0x01000000
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
#define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000
#define USB_CTRL_SETUP_SOFT_SHUTDOWN_MASK 0x00000200
#define USB_CTRL_SETUP_IPP_MASK 0x00000020
#define USB_CTRL_SETUP_IOC_MASK 0x00000010
#define USB_CTRL_USB_PM 0x04
#define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000
#define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000
#define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000
#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
#define USB_CTRL_USB_PM_XHC_PME_EN_MASK 0x00000010
#define USB_CTRL_USB_PM_XHC_S2_CLK_SWITCH_EN_MASK 0x00000008
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
#define USB_CTRL_USB_PM_STATUS 0x08
#define USB_CTRL_USB_DEVICE_CTL1 0x10
#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
#define USB_CTRL_TEST_PORT_CTL 0x30
#define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_MASK 0x000000ff
#define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_PME_GEN_MASK 0x0000002e
#define USB_CTRL_TP_DIAG1 0x34
#define USB_CTLR_TP_DIAG1_wake_MASK 0x00000002
#define USB_CTRL_CTLR_CSHCR 0x50
#define USB_CTRL_CTLR_CSHCR_ctl_pme_en_MASK 0x00040000
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
/* Register definitions for the USB_PHY block in 7211b0 */
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
#define USB_PHY_PLL_CTL 0x00
#define USB_PHY_PLL_CTL_PLL_RESETB_MASK 0x40000000
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
#define USB_PHY_PLL_LDO_CTL 0x08
#define USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK 0x00000004
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
#define USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK 0x00000002
#define USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK 0x00000001
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
#define USB_PHY_UTMI_CTL_1 0x04
phy: usb: PHY's MDIO registers not accessible without device installed When there is no device connected and FSM is enabled, the XHCI puts the PHY into suspend mode. When the PHY is put into suspend mode the USB LDO powers down the PHY. This causes the MDIO to be inaccessible and its registers reset to default. The fix is to disable FSM. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:08 -05:00
#define USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
#define USB_PHY_UTMI_CTL_1_PHY_MODE_MASK 0x0000000c
#define USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT 2
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
#define USB_PHY_IDDQ 0x1c
#define USB_PHY_IDDQ_phy_iddq_MASK 0x00000001
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
#define USB_PHY_STATUS 0x20
#define USB_PHY_STATUS_pll_lock_MASK 0x00000001
/* Register definitions for the MDIO registers in the DWC2 block of
* the 7211b0.
* NOTE: The PHY's MDIO registers are only accessible through the
* legacy DesignWare USB controller even though it's not being used.
*/
#define USB_GMDIOCSR 0
#define USB_GMDIOGEN 4
phy: usb: bdc: Fix occasional failure with BDC on 7211 The BDC "Read Transaction Size" needs to be changed from 1024 bytes to 256 bytes to prevent occasional transaction failures. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:09 -05:00
/* Register definitions for the BDC EC block in 7211b0 */
#define BDC_EC_AXIRDA 0x0c
#define BDC_EC_AXIRDA_RTS_MASK 0xf0000000
#define BDC_EC_AXIRDA_RTS_SHIFT 28
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
static void usb_mdio_write_7211b0(struct brcm_usb_init_params *params,
uint8_t addr, uint16_t data)
{
void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO];
addr &= 0x1f; /* 5-bit address */
brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN);
while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
;
brcm_usb_writel(0x59020000 | (addr << 18) | data,
usb_mdio + USB_GMDIOGEN);
while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
;
brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN);
while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
;
}
static uint16_t __maybe_unused usb_mdio_read_7211b0(
struct brcm_usb_init_params *params, uint8_t addr)
{
void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO];
addr &= 0x1f; /* 5-bit address */
brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN);
while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
;
brcm_usb_writel(0x69020000 | (addr << 18), usb_mdio + USB_GMDIOGEN);
while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
;
brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN);
while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
;
return brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & 0xffff;
}
static void usb2_eye_fix_7211b0(struct brcm_usb_init_params *params)
{
/* select bank */
usb_mdio_write_7211b0(params, 0x1f, 0x80a0);
/* Set the eye */
usb_mdio_write_7211b0(params, 0x0a, 0xc6a0);
}
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
static void xhci_soft_reset(struct brcm_usb_init_params *params,
int on_off)
{
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
/* Assert reset */
if (on_off)
USB_CTRL_UNSET(ctrl, USB_PM, XHC_SOFT_RESETB);
/* De-assert reset */
else
USB_CTRL_SET(ctrl, USB_PM, XHC_SOFT_RESETB);
}
static void usb_init_ipp(struct brcm_usb_init_params *params)
{
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
u32 reg;
u32 orig_reg;
pr_debug("%s\n", __func__);
orig_reg = reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
if (params->ipp != 2)
/* override ipp strap pin (if it exits) */
reg &= ~(USB_CTRL_MASK(SETUP, STRAP_IPP_SEL));
/* Override the default OC and PP polarity */
reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
if (params->ioc)
reg |= USB_CTRL_MASK(SETUP, IOC);
if (params->ipp == 1)
reg |= USB_CTRL_MASK(SETUP, IPP);
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
/*
* If we're changing IPP, make sure power is off long enough
* to turn off any connected devices.
*/
if ((reg ^ orig_reg) & USB_CTRL_MASK(SETUP, IPP))
msleep(50);
}
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
static void syscon_piarbctl_init(struct regmap *rmap)
{
/* Switch from legacy USB OTG controller to new STB USB controller */
regmap_update_bits(rmap, PIARBCTL_MISC, PIARBCTL_MISC_USB_ONLY_MASK,
PIARBCTL_MISC_USB_SELECT_MASK |
PIARBCTL_MISC_USB_4G_SDRAM_MASK);
}
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
static void usb_init_common(struct brcm_usb_init_params *params)
{
u32 reg;
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
pr_debug("%s\n", __func__);
if (USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE)) {
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
reg |= params->mode;
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
}
switch (params->mode) {
case USB_CTLR_MODE_HOST:
USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB);
break;
default:
USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB);
USB_CTRL_SET(ctrl, USB_PM, BDC_SOFT_RESETB);
break;
}
}
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
static void usb_wake_enable_7211b0(struct brcm_usb_init_params *params,
bool enable)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
if (enable)
USB_CTRL_SET(ctrl, CTLR_CSHCR, ctl_pme_en);
else
USB_CTRL_UNSET(ctrl, CTLR_CSHCR, ctl_pme_en);
}
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
static void usb_wake_enable_7216(struct brcm_usb_init_params *params,
bool enable)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
if (enable)
USB_CTRL_SET(ctrl, USB_PM, XHC_PME_EN);
else
USB_CTRL_UNSET(ctrl, USB_PM, XHC_PME_EN);
}
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
static void usb_init_common_7211b0(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY];
phy: usb: bdc: Fix occasional failure with BDC on 7211 The BDC "Read Transaction Size" needs to be changed from 1024 bytes to 256 bytes to prevent occasional transaction failures. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:09 -05:00
void __iomem *bdc_ec = params->regs[BRCM_REGS_BDC_EC];
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
int timeout_ms = PHY_LOCK_TIMEOUT_MS;
u32 reg;
if (params->syscon_piarbctl)
syscon_piarbctl_init(params->syscon_piarbctl);
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN);
usb_wake_enable_7211b0(params, false);
if (!params->wake_enabled) {
/* undo possible suspend settings */
brcm_usb_writel(0, usb_phy + USB_PHY_IDDQ);
reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);
reg |= USB_PHY_PLL_CTL_PLL_RESETB_MASK;
brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);
/* temporarily enable FSM so PHY comes up properly */
reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
reg |= USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK;
brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
}
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
/* Init the PHY */
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
reg = USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK |
USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK |
USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK;
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_LDO_CTL);
/* wait for lock */
while (timeout_ms-- > 0) {
reg = brcm_usb_readl(usb_phy + USB_PHY_STATUS);
if (reg & USB_PHY_STATUS_pll_lock_MASK)
break;
usleep_range(1000, 2000);
}
/* Set the PHY_MODE */
reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
reg &= ~USB_PHY_UTMI_CTL_1_PHY_MODE_MASK;
reg |= params->mode << USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT;
brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
usb_init_common(params);
phy: usb: bdc: Fix occasional failure with BDC on 7211 The BDC "Read Transaction Size" needs to be changed from 1024 bytes to 256 bytes to prevent occasional transaction failures. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:09 -05:00
/*
* The BDC controller will get occasional failures with
* the default "Read Transaction Size" of 6 (1024 bytes).
* Set it to 4 (256 bytes).
*/
if ((params->mode != USB_CTLR_MODE_HOST) && bdc_ec) {
reg = brcm_usb_readl(bdc_ec + BDC_EC_AXIRDA);
reg &= ~BDC_EC_AXIRDA_RTS_MASK;
reg |= (0x4 << BDC_EC_AXIRDA_RTS_SHIFT);
brcm_usb_writel(reg, bdc_ec + BDC_EC_AXIRDA);
}
phy: usb: PHY's MDIO registers not accessible without device installed When there is no device connected and FSM is enabled, the XHCI puts the PHY into suspend mode. When the PHY is put into suspend mode the USB LDO powers down the PHY. This causes the MDIO to be inaccessible and its registers reset to default. The fix is to disable FSM. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:08 -05:00
/*
* Disable FSM, otherwise the PHY will auto suspend when no
* device is connected and will be reset on resume.
*/
reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
reg &= ~USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK;
brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
usb2_eye_fix_7211b0(params);
}
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
static void usb_init_common_7216(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
USB_CTRL_UNSET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN);
USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN);
/* 1 millisecond - for USB clocks to settle down */
usleep_range(1000, 2000);
usb_wake_enable_7216(params, false);
usb_init_common(params);
}
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
static void usb_init_xhci(struct brcm_usb_init_params *params)
{
pr_debug("%s\n", __func__);
xhci_soft_reset(params, 0);
}
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
static void usb_uninit_common_7216(struct brcm_usb_init_params *params)
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
{
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
pr_debug("%s\n", __func__);
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
if (!params->wake_enabled) {
USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
/* Switch to using slower clock during suspend to save power */
USB_CTRL_SET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN);
} else {
usb_wake_enable_7216(params, true);
}
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
}
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
static void usb_uninit_common_7211b0(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY];
u32 reg;
pr_debug("%s\n", __func__);
if (params->wake_enabled) {
USB_CTRL_SET(ctrl, TEST_PORT_CTL, TPOUT_SEL_PME_GEN);
usb_wake_enable_7211b0(params, true);
} else {
USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
brcm_usb_writel(0, usb_phy + USB_PHY_PLL_LDO_CTL);
reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);
reg &= ~USB_PHY_PLL_CTL_PLL_RESETB_MASK;
brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);
brcm_usb_writel(USB_PHY_IDDQ_phy_iddq_MASK,
usb_phy + USB_PHY_IDDQ);
}
}
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
static void usb_uninit_xhci(struct brcm_usb_init_params *params)
{
pr_debug("%s\n", __func__);
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
if (!params->wake_enabled)
xhci_soft_reset(params, 1);
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
}
static int usb_get_dual_select(struct brcm_usb_init_params *params)
{
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
u32 reg = 0;
pr_debug("%s\n", __func__);
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
reg &= USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
return reg;
}
static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode)
{
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
u32 reg;
pr_debug("%s\n", __func__);
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
reg |= mode;
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
}
static const struct brcm_usb_init_ops bcm7216_ops = {
.init_ipp = usb_init_ipp,
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
.init_common = usb_init_common_7216,
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
.init_xhci = usb_init_xhci,
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
.uninit_common = usb_uninit_common_7216,
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
.uninit_xhci = usb_uninit_xhci,
.get_dual_select = usb_get_dual_select,
.set_dual_select = usb_set_dual_select,
};
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
static const struct brcm_usb_init_ops bcm7211b0_ops = {
.init_ipp = usb_init_ipp,
.init_common = usb_init_common_7211b0,
.init_xhci = usb_init_xhci,
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
.uninit_common = usb_uninit_common_7211b0,
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
.uninit_xhci = usb_uninit_xhci,
.get_dual_select = usb_get_dual_select,
.set_dual_select = usb_set_dual_select,
};
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params)
{
pr_debug("%s\n", __func__);
params->family_name = "7216";
params->ops = &bcm7216_ops;
phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers Add "wake on" support for the newer Synopsis based XHCI only controller. This works on the 72165 and 72164 and newer chips and does not work on 7216 based systems. Also switch the USB sysclk to a slower clock on suspend to save additional power in S2. The clock switch will only save power on the 72165b0 and newer chips and is a nop on older chips. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220215032422.5179-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-14 19:24:21 -08:00
params->suspend_with_clocks = true;
phy: usb: Add support for new Synopsys USB controller on the 7216 The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:05 -05:00
}
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params)
{
pr_debug("%s\n", __func__);
params->family_name = "7211";
params->ops = &bcm7211b0_ops;
phy: usb: Add support for wake and USB low power mode for 7211 S2/S5 Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:11 -05:00
params->suspend_with_clocks = true;
phy: usb: Add support for new Synopsys USB controller on the 7211b0 The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper <alcooperx@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-03 13:18:06 -05:00
}
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