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linux/drivers/phy/broadcom/phy-brcm-usb-init.c
Sam Edwards cb4c7df596 phy: usb: Fix missing elements in BCM4908 USB init array 
The Broadcom USB PHY driver contains a lookup table
(`reg_bits_map_tables`) to resolve register bitmaps unique to certain
versions of the USB PHY as found in various Broadcom chip families. A
recent commit (see 'fixes' tag) introduced two new elements to each chip
family in this table -- except for one: BCM4908. This resulted in the
xHCI controller not being initialized correctly, causing a panic on
boot.

The next patch will update this table to use designated initializers in
order to prevent this from happening again. For now, just add back the
missing array elements to resolve the regression.

Fixes: 4536fe9640 ("phy: usb: suppress OC condition for 7439b2")
Signed-off-by: Sam Edwards <CFSworks@gmail.com>
Reviewed-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20241004034131.1363813-2-CFSworks@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-10-07 11:43:46 +05:30

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// SPDX-License-Identifier: GPL-2.0-only
/*
* phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions
*
* Copyright (C) 2014-2017 Broadcom
*/
/*
* This module contains USB PHY initialization for power up and S3 resume
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/soc/brcmstb/brcmstb.h>
#include "phy-brcm-usb-init.h"
#define PHY_PORTS 2
#define PHY_PORT_SELECT_0 0
#define PHY_PORT_SELECT_1 0x1000
/* Register definitions for the USB CTRL block */
#define USB_CTRL_SETUP 0x00
#define USB_CTRL_SETUP_BABO_MASK BIT(0)
#define USB_CTRL_SETUP_FNHW_MASK BIT(1)
#define USB_CTRL_SETUP_FNBO_MASK BIT(2)
#define USB_CTRL_SETUP_WABO_MASK BIT(3)
#define USB_CTRL_SETUP_IOC_MASK BIT(4)
#define USB_CTRL_SETUP_IPP_MASK BIT(5)
#define USB_CTRL_SETUP_SCB_CLIENT_SWAP_MASK BIT(13) /* option */
#define USB_CTRL_SETUP_SCB1_EN_MASK BIT(14) /* option */
#define USB_CTRL_SETUP_SCB2_EN_MASK BIT(15) /* option */
#define USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK BIT(17) /* option */
#define USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK BIT(16) /* option */
#define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK BIT(25) /* option */
#define USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK BIT(26) /* option */
#define USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK BIT(27) /* opt */
#define USB_CTRL_SETUP_OC_DISABLE_PORT0_MASK BIT(28)
#define USB_CTRL_SETUP_OC_DISABLE_PORT1_MASK BIT(29)
#define USB_CTRL_SETUP_OC_DISABLE_MASK GENMASK(29, 28) /* option */
#define USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK BIT(30)
#define USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK BIT(31)
#define USB_CTRL_SETUP_OC3_DISABLE_MASK GENMASK(31, 30) /* option */
#define USB_CTRL_PLL_CTL 0x04
#define USB_CTRL_PLL_CTL_PLL_SUSPEND_EN_MASK BIT(27)
#define USB_CTRL_PLL_CTL_PLL_RESETB_MASK BIT(30)
#define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK BIT(31) /* option */
#define USB_CTRL_EBRIDGE 0x0c
#define USB_CTRL_EBRIDGE_EBR_SCB_SIZE_MASK GENMASK(11, 7) /* option */
#define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK BIT(17) /* option */
#define USB_CTRL_OBRIDGE 0x10
#define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK BIT(27)
#define USB_CTRL_MDIO 0x14
#define USB_CTRL_MDIO2 0x18
#define USB_CTRL_UTMI_CTL_1 0x2c
#define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_MASK BIT(11)
#define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_P1_MASK BIT(27)
#define USB_CTRL_USB_PM 0x34
#define USB_CTRL_USB_PM_RMTWKUP_EN_MASK BIT(0)
#define USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK GENMASK(21, 20) /* option */
#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK BIT(22) /* option */
#define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK BIT(23) /* option */
#define USB_CTRL_USB_PM_USB20_HC_RESETB_MASK GENMASK(29, 28) /* option */
#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK BIT(30) /* option */
#define USB_CTRL_USB_PM_SOFT_RESET_MASK BIT(30) /* option */
#define USB_CTRL_USB_PM_USB_PWRDN_MASK BIT(31) /* option */
#define USB_CTRL_USB_PM_STATUS 0x38
#define USB_CTRL_USB30_CTL1 0x60
#define USB_CTRL_USB30_CTL1_PHY3_PLL_SEQ_START_MASK BIT(4)
#define USB_CTRL_USB30_CTL1_PHY3_RESETB_MASK BIT(16)
#define USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK BIT(17) /* option */
#define USB_CTRL_USB30_CTL1_USB3_IOC_MASK BIT(28) /* option */
#define USB_CTRL_USB30_CTL1_USB3_IPP_MASK BIT(29) /* option */
#define USB_CTRL_USB30_PCTL 0x70
#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_MASK BIT(1)
#define USB_CTRL_USB30_PCTL_PHY3_IDDQ_OVERRIDE_MASK BIT(15)
#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_P1_MASK BIT(17)
#define USB_CTRL_USB_DEVICE_CTL1 0x90
#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK GENMASK(1, 0) /* option */
/* Register definitions for the XHCI EC block */
#define USB_XHCI_EC_IRAADR 0x658
#define USB_XHCI_EC_IRADAT 0x65c
enum brcm_family_type {
BRCM_FAMILY_3390A0,
BRCM_FAMILY_4908,
BRCM_FAMILY_7250B0,
BRCM_FAMILY_7271A0,
BRCM_FAMILY_7364A0,
BRCM_FAMILY_7366C0,
BRCM_FAMILY_74371A0,
BRCM_FAMILY_7439B0,
BRCM_FAMILY_7445D0,
BRCM_FAMILY_7260A0,
BRCM_FAMILY_7278A0,
BRCM_FAMILY_COUNT,
};
#define USB_BRCM_FAMILY(chip) \
[BRCM_FAMILY_##chip] = __stringify(chip)
static const char *family_names[BRCM_FAMILY_COUNT] = {
USB_BRCM_FAMILY(3390A0),
USB_BRCM_FAMILY(4908),
USB_BRCM_FAMILY(7250B0),
USB_BRCM_FAMILY(7271A0),
USB_BRCM_FAMILY(7364A0),
USB_BRCM_FAMILY(7366C0),
USB_BRCM_FAMILY(74371A0),
USB_BRCM_FAMILY(7439B0),
USB_BRCM_FAMILY(7445D0),
USB_BRCM_FAMILY(7260A0),
USB_BRCM_FAMILY(7278A0),
};
enum {
USB_CTRL_SETUP_SCB1_EN_SELECTOR,
USB_CTRL_SETUP_SCB2_EN_SELECTOR,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_SELECTOR,
USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR,
USB_CTRL_SETUP_OC3_DISABLE_PORT0_SELECTOR,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_SELECTOR,
USB_CTRL_SETUP_OC3_DISABLE_SELECTOR,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR,
USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR,
USB_CTRL_USB_PM_USB_PWRDN_SELECTOR,
USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_SELECTOR,
USB_CTRL_USB30_CTL1_USB3_IOC_SELECTOR,
USB_CTRL_USB30_CTL1_USB3_IPP_SELECTOR,
USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_SELECTOR,
USB_CTRL_USB_PM_SOFT_RESET_SELECTOR,
USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_SELECTOR,
USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_SELECTOR,
USB_CTRL_USB_PM_USB20_HC_RESETB_SELECTOR,
USB_CTRL_SETUP_ENDIAN_SELECTOR,
USB_CTRL_SELECTOR_COUNT,
};
#define USB_CTRL_MASK_FAMILY(params, reg, field) \
(params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR])
#define USB_CTRL_SET_FAMILY(params, reg, field) \
usb_ctrl_set_family(params, USB_CTRL_##reg, \
USB_CTRL_##reg##_##field##_SELECTOR)
#define USB_CTRL_UNSET_FAMILY(params, reg, field) \
usb_ctrl_unset_family(params, USB_CTRL_##reg, \
USB_CTRL_##reg##_##field##_SELECTOR)
#define MDIO_USB2 0
#define MDIO_USB3 BIT(31)
#define USB_CTRL_SETUP_ENDIAN_BITS ( \
USB_CTRL_MASK(SETUP, BABO) | \
USB_CTRL_MASK(SETUP, FNHW) | \
USB_CTRL_MASK(SETUP, FNBO) | \
USB_CTRL_MASK(SETUP, WABO))
#ifdef __LITTLE_ENDIAN
#define ENDIAN_SETTINGS ( \
USB_CTRL_MASK(SETUP, BABO) | \
USB_CTRL_MASK(SETUP, FNHW))
#else
#define ENDIAN_SETTINGS ( \
USB_CTRL_MASK(SETUP, FNHW) | \
USB_CTRL_MASK(SETUP, FNBO) | \
USB_CTRL_MASK(SETUP, WABO))
#endif
struct id_to_type {
u32 id;
int type;
};
static const struct id_to_type id_to_type_table[] = {
{ 0x33900000, BRCM_FAMILY_3390A0 },
{ 0x72500010, BRCM_FAMILY_7250B0 },
{ 0x72600000, BRCM_FAMILY_7260A0 },
{ 0x72550000, BRCM_FAMILY_7260A0 },
{ 0x72680000, BRCM_FAMILY_7271A0 },
{ 0x72710000, BRCM_FAMILY_7271A0 },
{ 0x73640000, BRCM_FAMILY_7364A0 },
{ 0x73660020, BRCM_FAMILY_7366C0 },
{ 0x07437100, BRCM_FAMILY_74371A0 },
{ 0x74390010, BRCM_FAMILY_7439B0 },
{ 0x74450030, BRCM_FAMILY_7445D0 },
{ 0x72780000, BRCM_FAMILY_7278A0 },
{ 0, BRCM_FAMILY_7271A0 }, /* default */
};
static const u32
usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
/* 3390B0 */
[BRCM_FAMILY_3390A0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
USB_CTRL_SETUP_SCB2_EN_MASK,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 4908 */
[BRCM_FAMILY_4908] = {
0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
0, /* USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
0, /* USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK */
0, /* USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK */
0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK */
0, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7250b0 */
[BRCM_FAMILY_7250B0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
USB_CTRL_SETUP_SCB2_EN_MASK,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7271a0 */
[BRCM_FAMILY_7271A0] = {
0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
USB_CTRL_USB_PM_SOFT_RESET_MASK,
USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7364a0 */
[BRCM_FAMILY_7364A0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
USB_CTRL_SETUP_SCB2_EN_MASK,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7366c0 */
[BRCM_FAMILY_7366C0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
USB_CTRL_SETUP_SCB2_EN_MASK,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 74371A0 */
[BRCM_FAMILY_74371A0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
USB_CTRL_SETUP_SCB2_EN_MASK,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
0, /* USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK */
0, /* USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK */
0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB30_CTL1_USB3_IOC_MASK,
USB_CTRL_USB30_CTL1_USB3_IPP_MASK,
0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7439B0 */
[BRCM_FAMILY_7439B0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
USB_CTRL_SETUP_SCB2_EN_MASK,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7445d0 */
[BRCM_FAMILY_7445D0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
USB_CTRL_SETUP_SCB2_EN_MASK,
USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7260a0 */
[BRCM_FAMILY_7260A0] = {
0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
USB_CTRL_USB_PM_SOFT_RESET_MASK,
USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
/* 7278a0 */
[BRCM_FAMILY_7278A0] = {
0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
0, /*USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
USB_CTRL_USB_PM_SOFT_RESET_MASK,
0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
0, /* USB_CTRL_SETUP ENDIAN bits */
},
};
static inline
void usb_ctrl_unset_family(struct brcm_usb_init_params *params,
u32 reg_offset, u32 field)
{
u32 mask;
mask = params->usb_reg_bits_map[field];
brcm_usb_ctrl_unset(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
};
static inline
void usb_ctrl_set_family(struct brcm_usb_init_params *params,
u32 reg_offset, u32 field)
{
u32 mask;
mask = params->usb_reg_bits_map[field];
brcm_usb_ctrl_set(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
};
static u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode)
{
u32 data;
data = (reg << 16) | mode;
brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data |= (1 << 24);
brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data &= ~(1 << 24);
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
return brcm_usb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff;
}
static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg,
u32 val, int mode)
{
u32 data;
data = (reg << 16) | val | mode;
brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data |= (1 << 25);
brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data &= ~(1 << 25);
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
}
static void brcmusb_usb_phy_ldo_fix(void __iomem *ctrl_base)
{
/* first disable FSM but also leave it that way */
/* to allow normal suspend/resume */
USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN);
USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN_P1);
/* reset USB 2.0 PLL */
USB_CTRL_UNSET(ctrl_base, PLL_CTL, PLL_RESETB);
/* PLL reset period */
udelay(1);
USB_CTRL_SET(ctrl_base, PLL_CTL, PLL_RESETB);
/* Give PLL enough time to lock */
usleep_range(1000, 2000);
}
static void brcmusb_usb2_eye_fix(void __iomem *ctrl_base)
{
/* Increase USB 2.0 TX level to meet spec requirement */
brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x80a0, MDIO_USB2);
brcmusb_usb_mdio_write(ctrl_base, 0x0a, 0xc6a0, MDIO_USB2);
}
static void brcmusb_usb3_pll_fix(void __iomem *ctrl_base)
{
/* Set correct window for PLL lock detect */
brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x07, 0x1503, MDIO_USB3);
}
static void brcmusb_usb3_enable_pipe_reset(void __iomem *ctrl_base)
{
u32 val;
/* Re-enable USB 3.0 pipe reset */
brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
val = brcmusb_usb_mdio_read(ctrl_base, 0x0f, MDIO_USB3) | 0x200;
brcmusb_usb_mdio_write(ctrl_base, 0x0f, val, MDIO_USB3);
}
static void brcmusb_usb3_enable_sigdet(void __iomem *ctrl_base)
{
u32 val, ofs;
int ii;
ofs = 0;
for (ii = 0; ii < PHY_PORTS; ++ii) {
/* Set correct default for sigdet */
brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8080 + ofs),
MDIO_USB3);
val = brcmusb_usb_mdio_read(ctrl_base, 0x05, MDIO_USB3);
val = (val & ~0x800f) | 0x800d;
brcmusb_usb_mdio_write(ctrl_base, 0x05, val, MDIO_USB3);
ofs = PHY_PORT_SELECT_1;
}
}
static void brcmusb_usb3_enable_skip_align(void __iomem *ctrl_base)
{
u32 val, ofs;
int ii;
ofs = 0;
for (ii = 0; ii < PHY_PORTS; ++ii) {
/* Set correct default for SKIP align */
brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8060 + ofs),
MDIO_USB3);
val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0x200;
brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
ofs = PHY_PORT_SELECT_1;
}
}
static void brcmusb_usb3_unfreeze_aeq(void __iomem *ctrl_base)
{
u32 val, ofs;
int ii;
ofs = 0;
for (ii = 0; ii < PHY_PORTS; ++ii) {
/* Let EQ freeze after TSEQ */
brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x80e0 + ofs),
MDIO_USB3);
val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3);
val &= ~0x0008;
brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
ofs = PHY_PORT_SELECT_1;
}
}
static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params)
{
u32 ofs;
int ii;
void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
/*
* On newer B53 based SoC's, the reference clock for the
* 3.0 PLL has been changed from 50MHz to 54MHz so the
* PLL needs to be reprogrammed.
* See SWLINUX-4006.
*
* On the 7364C0, the reference clock for the
* 3.0 PLL has been changed from 50MHz to 54MHz to
* work around a MOCA issue.
* See SWLINUX-4169.
*/
switch (params->selected_family) {
case BRCM_FAMILY_3390A0:
case BRCM_FAMILY_4908:
case BRCM_FAMILY_7250B0:
case BRCM_FAMILY_7366C0:
case BRCM_FAMILY_74371A0:
case BRCM_FAMILY_7439B0:
case BRCM_FAMILY_7445D0:
case BRCM_FAMILY_7260A0:
return;
case BRCM_FAMILY_7364A0:
if (BRCM_REV(params->family_id) < 0x20)
return;
break;
}
/* set USB 3.0 PLL to accept 54Mhz reference clock */
USB_CTRL_UNSET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x10, 0x5784, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x11, 0x01d0, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x12, 0x1DE8, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x13, 0xAA80, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x14, 0x8826, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x15, 0x0044, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x16, 0x8000, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x17, 0x0851, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x18, 0x0000, MDIO_USB3);
/* both ports */
ofs = 0;
for (ii = 0; ii < PHY_PORTS; ++ii) {
brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8040 + ofs),
MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x03, 0x0090, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x04, 0x0134, MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8020 + ofs),
MDIO_USB3);
brcmusb_usb_mdio_write(ctrl_base, 0x01, 0x00e2, MDIO_USB3);
ofs = PHY_PORT_SELECT_1;
}
/* restart PLL sequence */
USB_CTRL_SET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
/* Give PLL enough time to lock */
usleep_range(1000, 2000);
}
static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base)
{
u32 val;
/* Enable USB 3.0 TX spread spectrum */
brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8040, MDIO_USB3);
val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
/* Currently, USB 3.0 SSC is enabled via port 0 MDIO registers,
* which should have been adequate. However, due to a bug in the
* USB 3.0 PHY, it must be enabled via both ports (HWUSB3DVT-26).
*/
brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x9040, MDIO_USB3);
val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
}
static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params)
{
void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
brcmusb_usb3_pll_fix(ctrl_base);
brcmusb_usb3_pll_54mhz(params);
brcmusb_usb3_ssc_enable(ctrl_base);
brcmusb_usb3_enable_pipe_reset(ctrl_base);
brcmusb_usb3_enable_sigdet(ctrl_base);
brcmusb_usb3_enable_skip_align(ctrl_base);
brcmusb_usb3_unfreeze_aeq(ctrl_base);
}
static void brcmusb_memc_fix(struct brcm_usb_init_params *params)
{
u32 prid;
if (params->selected_family != BRCM_FAMILY_7445D0)
return;
/*
* This is a workaround for HW7445-1869 where a DMA write ends up
* doing a read pre-fetch after the end of the DMA buffer. This
* causes a problem when the DMA buffer is at the end of physical
* memory, causing the pre-fetch read to access non-existent memory,
* and the chip bondout has MEMC2 disabled. When the pre-fetch read
* tries to use the disabled MEMC2, it hangs the bus. The workaround
* is to disable MEMC2 access in the usb controller which avoids
* the hang.
*/
prid = params->product_id & 0xfffff000;
switch (prid) {
case 0x72520000:
case 0x74480000:
case 0x74490000:
case 0x07252000:
case 0x07448000:
case 0x07449000:
USB_CTRL_UNSET_FAMILY(params, SETUP, SCB2_EN);
}
}
static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params)
{
void __iomem *xhci_ec_base = params->regs[BRCM_REGS_XHCI_EC];
u32 val;
if (params->family_id != 0x74371000 || !xhci_ec_base)
return;
brcm_usb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR));
val = brcm_usb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
/* set cfg_pick_ss_lock */
val |= (1 << 27);
brcm_usb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
/* Reset USB 3.0 PHY for workaround to take effect */
USB_CTRL_UNSET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
}
static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params,
int on_off)
{
/* Assert reset */
if (on_off) {
if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
USB_CTRL_UNSET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
else
USB_CTRL_UNSET_FAMILY(params,
USB30_CTL1, XHC_SOFT_RESETB);
} else { /* De-assert reset */
if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
USB_CTRL_SET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
else
USB_CTRL_SET_FAMILY(params, USB30_CTL1,
XHC_SOFT_RESETB);
}
}
/*
* Return the best map table family. The order is:
* - exact match of chip and major rev
* - exact match of chip and closest older major rev
* - default chip/rev.
* NOTE: The minor rev is always ignored.
*/
static enum brcm_family_type get_family_type(
struct brcm_usb_init_params *params)
{
int last_type = -1;
u32 last_family = 0;
u32 family_no_major;
unsigned int x;
u32 family;
family = params->family_id & 0xfffffff0;
family_no_major = params->family_id & 0xffffff00;
for (x = 0; id_to_type_table[x].id; x++) {
if (family == id_to_type_table[x].id)
return id_to_type_table[x].type;
if (family_no_major == (id_to_type_table[x].id & 0xffffff00))
if (family > id_to_type_table[x].id &&
last_family < id_to_type_table[x].id) {
last_family = id_to_type_table[x].id;
last_type = id_to_type_table[x].type;
}
}
/* If no match, return the default family */
if (last_type == -1)
return id_to_type_table[x].type;
return last_type;
}
static void usb_init_ipp(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
u32 reg;
u32 orig_reg;
/* Starting with the 7445d0, there are no longer separate 3.0
* versions of IOC and IPP.
*/
if (USB_CTRL_MASK_FAMILY(params, USB30_CTL1, USB3_IOC)) {
if (params->ioc)
USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IOC);
if (params->ipp == 1)
USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP);
}
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
orig_reg = reg;
if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL))
/* Never use the strap, it's going away. */
reg &= ~(USB_CTRL_MASK_FAMILY(params,
SETUP,
STRAP_CC_DRD_MODE_ENABLE_SEL));
if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL))
/* override ipp strap pin (if it exits) */
if (params->ipp != 2)
reg &= ~(USB_CTRL_MASK_FAMILY(params, 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);
}
static void usb_wake_enable(struct brcm_usb_init_params *params,
bool enable)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
if (enable)
USB_CTRL_SET(ctrl, USB_PM, RMTWKUP_EN);
else
USB_CTRL_UNSET(ctrl, USB_PM, RMTWKUP_EN);
}
static void usb_init_common(struct brcm_usb_init_params *params)
{
u32 reg;
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
/* Clear any pending wake conditions */
usb_wake_enable(params, false);
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM_STATUS));
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM_STATUS));
/* Take USB out of power down */
if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) {
USB_CTRL_UNSET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
/* 1 millisecond - for USB clocks to settle down */
usleep_range(1000, 2000);
}
if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) {
USB_CTRL_UNSET_FAMILY(params, USB_PM, USB_PWRDN);
/* 1 millisecond - for USB clocks to settle down */
usleep_range(1000, 2000);
}
if (params->selected_family != BRCM_FAMILY_74371A0 &&
(BRCM_ID(params->family_id) != 0x7364))
/*
* HW7439-637: 7439a0 and its derivatives do not have large
* enough descriptor storage for this.
*/
USB_CTRL_SET_FAMILY(params, SETUP, SS_EHCI64BIT_EN);
/* Block auto PLL suspend by USB2 PHY (Sasi) */
USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN);
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
if (params->selected_family == BRCM_FAMILY_7364A0)
/* Suppress overcurrent indication from USB30 ports for A0 */
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE);
brcmusb_usb_phy_ldo_fix(ctrl);
brcmusb_usb2_eye_fix(ctrl);
/*
* Make sure the second and third memory controller
* interfaces are enabled if they exist.
*/
if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN))
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN);
if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN))
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN);
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
brcmusb_memc_fix(params);
/* Workaround for false positive OC for 7439b2 in DRD/Device mode */
if ((params->family_id == 0x74390012) &&
(params->supported_port_modes != USB_CTLR_MODE_HOST)) {
USB_CTRL_SET(ctrl, SETUP, OC_DISABLE_PORT1);
USB_CTRL_SET_FAMILY(params, SETUP, OC3_DISABLE_PORT1);
}
if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
PORT_MODE);
reg |= params->port_mode;
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
}
if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) {
switch (params->supported_port_modes) {
case USB_CTLR_MODE_HOST:
USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
break;
default:
USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
USB_CTRL_SET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
break;
}
}
if (USB_CTRL_MASK_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE)) {
if (params->supported_port_modes == USB_CTLR_MODE_TYPEC_PD)
USB_CTRL_SET_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE);
else
USB_CTRL_UNSET_FAMILY(params, SETUP,
CC_DRD_MODE_ENABLE);
}
}
static void usb_init_eohci(struct brcm_usb_init_params *params)
{
u32 reg;
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB);
if (params->selected_family == BRCM_FAMILY_7366C0)
/*
* Don't enable this so the memory controller doesn't read
* into memory holes. NOTE: This bit is low true on 7366C0.
*/
USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ);
/* Setup the endian bits */
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
reg &= ~USB_CTRL_SETUP_ENDIAN_BITS;
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN);
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
if (params->selected_family == BRCM_FAMILY_7271A0)
/* Enable LS keep alive fix for certain keyboards */
USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE);
if (params->family_id == 0x72550000) {
/*
* Make the burst size 512 bytes to fix a hardware bug
* on the 7255a0. See HW7255-24.
*/
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, EBRIDGE));
reg &= ~USB_CTRL_MASK(EBRIDGE, EBR_SCB_SIZE);
reg |= 0x800;
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, EBRIDGE));
}
}
static void usb_init_xhci(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
/* 1 millisecond - for USB clocks to settle down */
usleep_range(1000, 2000);
if (BRCM_ID(params->family_id) == 0x7366) {
/*
* The PHY3_SOFT_RESETB bits default to the wrong state.
*/
USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB);
USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB_P1);
}
/*
* Kick start USB3 PHY
* Make sure it's low to insure a rising edge.
*/
USB_CTRL_UNSET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
USB_CTRL_SET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
brcmusb_usb3_phy_workarounds(params);
brcmusb_xhci_soft_reset(params, 0);
brcmusb_usb3_otp_fix(params);
}
static void usb_uninit_common(struct brcm_usb_init_params *params)
{
if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN))
USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN);
if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN))
USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
if (params->wake_enabled)
usb_wake_enable(params, true);
}
static void usb_uninit_eohci(struct brcm_usb_init_params *params)
{
}
static void usb_uninit_xhci(struct brcm_usb_init_params *params)
{
brcmusb_xhci_soft_reset(params, 1);
USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_PCTL,
PHY3_IDDQ_OVERRIDE);
}
static int usb_get_dual_select(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
u32 reg = 0;
pr_debug("%s\n", __func__);
if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
PORT_MODE);
}
return reg;
}
static void usb_set_dual_select(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
u32 reg;
pr_debug("%s\n", __func__);
if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
PORT_MODE);
reg |= params->port_mode;
brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
}
}
static const struct brcm_usb_init_ops bcm7445_ops = {
.init_ipp = usb_init_ipp,
.init_common = usb_init_common,
.init_eohci = usb_init_eohci,
.init_xhci = usb_init_xhci,
.uninit_common = usb_uninit_common,
.uninit_eohci = usb_uninit_eohci,
.uninit_xhci = usb_uninit_xhci,
.get_dual_select = usb_get_dual_select,
.set_dual_select = usb_set_dual_select,
};
void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params)
{
int fam;
fam = BRCM_FAMILY_4908;
params->selected_family = fam;
params->usb_reg_bits_map =
&usb_reg_bits_map_table[fam][0];
params->family_name = family_names[fam];
params->ops = &bcm7445_ops;
}
void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params)
{
int fam;
pr_debug("%s\n", __func__);
fam = get_family_type(params);
params->selected_family = fam;
params->usb_reg_bits_map =
&usb_reg_bits_map_table[fam][0];
params->family_name = family_names[fam];
params->ops = &bcm7445_ops;
}
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