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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#ifndef _BAYTRAIL_IOSF_H_
#define _BAYTRAIL_IOSF_H_
#include <stdint.h>
#include <baytrail/pci_devs.h>
/*
* The Bay Trail SoC has a message network called IOSF Sideband. The access
* routines are through 3 registers in PCI config space of 00:00.0:
* MCR - control register
* MDR - data register
* MCRX - control register extension
* The extension register is only used for addresses that don't fit into the
* 8 bit register address.
*/
#ifndef PCI_DEV
#define PCI_DEV(SEGBUS, DEV, FN) ( \
(((SEGBUS) & 0xFFF) << 20) | \
(((DEV) & 0x1F) << 15) | \
(((FN) & 0x07) << 12))
#endif
#define IOSF_PCI_DEV PCI_DEV(0,SOC_DEV,SOC_FUNC)
#define MCR_REG 0xd0
#define IOSF_OPCODE(x) ((x) << 24)
#define IOSF_PORT(x) ((0xff & (x)) << 16)
#define IOSF_REG(x) ((0xff & (x)) << 8)
#define IOSF_REG_UPPER(x) (((~0xff) & (x)))
#define IOSF_BYTE_EN_0 0x10
#define IOSF_BYTE_EN_1 0x20
#define IOSF_BYTE_EN_2 0x40
#define IOSF_BYTE_EN_3 0x80
#define IOSF_BYTE_EN \
(IOSF_BYTE_EN_0 | IOSF_BYTE_EN_1 | IOSF_BYTE_EN_2 | IOSF_BYTE_EN_3)
#define MDR_REG 0xd4
#define MCRX_REG 0xd8
uint32_t iosf_bunit_read(int reg);
void iosf_bunit_write(int reg, uint32_t val);
uint32_t iosf_dunit_read(int reg);
void iosf_dunit_write(int reg, uint32_t val);
/* Some registers are per channel while the globals live in dunit 0 */
uint32_t iosf_dunit_ch0_read(int reg);
uint32_t iosf_dunit_ch1_read(int reg);
uint32_t iosf_punit_read(int reg);
uint32_t iosf_lpss_read(int reg);
void iosf_lpss_write(int reg, uint32_t val);
/* IOSF ports. */
#define IOSF_PORT_AUNIT 0x00 /* IO Arbiter unit */
#define IOSF_PORT_SYSMEMC 0x01 /* System Memory Controller */
#define IOSF_PORT_BUNIT 0x03 /* System Memory Arbiter/Bunit */
#define IOSF_PORT_DUNIT_CH1 0x07 /* DUNIT Channel 1 */
#define IOSF_PORT_USBPHY 0x43 /* USB PHY */
#define IOSF_PORT_USHPHY 0x61 /* USB XHCI PHY */
#define IOSF_PORT_LPSS 0xa0 /* LPSS - Low Power Subsystem */
/* Read and write opcodes differ per port. */
#define IOSF_OP_READ_SYSMEMC 0x10
#define IOSF_OP_WRITE_SYSMEMC (IOSF_OP_READ_SYSMEMC | 1)
#define IOSF_OP_READ_BUNIT 0x10
#define IOSF_OP_WRITE_BUNIT (IOSF_OP_READ_BUNIT | 1)
#define IOSF_OP_READ_LPSS 0x06
#define IOSF_OP_WRITE_LPSS (IOSF_OP_READ_LPSS | 1)
/*
* BUNIT Registers.
*/
#define BNOCACHE 0x23
/* BMBOUND has a 128MiB granularity. Highest address is 0xf8000000. */
#define BUNIT_BMBOUND 0x25
/* BMBOUND_HI describes the available ram above 4GiB. It has a
* 256MiB granularity. Physical address bits 35:28 are compared with 31:24
* bits in the BMBOUND_HI register. Also note that since BMBOUND has 128MiB
* granularity care needs to be taken with the e820 map to account for a hole
* in the ram. */
#define BUNIT_BMBOUND_HI 0x26
#define BUNIT_MMCONF_REG 0x27
/* The SMMRR registers define the SMM region in MiB granularity. */
#define BUNIT_SMRRL 0x2e
#define BUNIT_SMRRH 0x2f
# define BUNIT_SMRR_ENABLE (1 << 31)
/*
* DUNIT Registers.
*/
#define DRP 0x00
# define DRP_DIMM0_RANK0_EN (0x01 << 0)
# define DRP_DIMM0_RANK1_EN (0x01 << 1)
# define DRP_DIMM1_RANK0_EN (0x01 << 2)
# define DRP_DIMM1_RANK1_EN (0x01 << 3)
# define DRP_RANK_MASK (DRP_DIMM0_RANK0_EN | DRP_DIMM0_RANK1_EN | \
DRP_DIMM1_RANK0_EN | DRP_DIMM1_RANK1_EN)
#define DTR0 0x01
# define DTR0_SPEED_MASK 0x03
# define DTR0_SPEED_800 0x00
# define DTR0_SPEED_1066 0x01
# define DTR0_SPEED_1333 0x02
# define DTR0_SPEED_1600 0x03
/*
* LPSS Registers
*/
#define LPSS_SIO_DMA1_CTL 0x280
#define LPSS_I2C1_CTL 0x288
#define LPSS_I2C2_CTL 0x290
#define LPSS_I2C3_CTL 0x298
#define LPSS_I2C4_CTL 0x2a0
#define LPSS_I2C5_CTL 0x2a8
#define LPSS_I2C6_CTL 0x2b0
#define LPSS_I2C7_CTL 0x2b8
#define LPSS_SIO_DMA2_CTL 0x240
#define LPSS_PWM1_CTL 0x248
#define LPSS_PWM2_CTL 0x250
#define LPSS_HSUART1_CTL 0x258
#define LPSS_HSUART2_CTL 0x260
#define LPSS_SPI_CTL 0x268
# define LPSS_CTL_ACPI_INT_EN (1 << 21)
# define LPSS_CTL_PCI_CFG_DIS (1 << 20)
# define LPSS_CTL_SNOOP (1 << 18)
# define LPSS_CTL_NOSNOOP (1 << 19)
# define LPSS_CTL_PM_CAP_PRSNT (1 << 1)
/*
* SCC Registers
*/
#define SCC_SD_CTL 0x504
#define SCC_SDIO_CTL 0x508
#define SCC_MMC_CTL 0x50c
# define SCC_CTL_PCI_CFG_DIS (1 << 0)
# define SCC_CTL_ACPI_INT_EN (1 << 1)
/*
* CCU Registers
*/
#define PLT_CLK_CTRL_0 0x3c
#define PLT_CLK_CTRL_1 0x40
#define PLT_CLK_CTRL_2 0x44
#define PLT_CLK_CTRL_3 0x48
#define PLT_CLK_CTRL_4 0x4c
#define PLT_CLK_CTRL_5 0x50
# define PLT_CLK_CTRL_19P2MHZ_FREQ (0 << 1)
# define PLT_CLK_CTRL_25MHZ_FREQ (1 << 1)
# define PLT_CLK_CTRL_SELECT_FREQ (1 << 0)
/*
* USBPHY Registers
*/
#define USBPHY_COMPBG 0x7f04
#define USBPHY_PER_PORT_LANE0 0x4100
#define USBPHY_PER_PORT_RCOMP_HS_PULLUP0 0x4122
#define USBPHY_PER_PORT_LANE1 0x4200
#define USBPHY_PER_PORT_RCOMP_HS_PULLUP1 0x4222
#define USBPHY_PER_PORT_LANE2 0x4300
#define USBPHY_PER_PORT_RCOMP_HS_PULLUP2 0x4322
#define USBPHY_PER_PORT_LANE3 0x4400
#define USBPHY_PER_PORT_RCOMP_HS_PULLUP3 0x4422
/*
* USHPHY Registers
*/
#define USHPHY_CDN_PLL_CONTROL 0x03c0
#define USHPHY_CDN_VCO_START_CAL_POINT 0x0054
#define USHPHY_CCDRLF 0x8040
#define USHPHY_PEAKING_AMP_CONFIG_DIAG 0x80a8
#define USHPHY_OFFSET_COR_CONFIG_DIAG 0x80b0
#define USHPHY_VGA_GAIN_CONFIG_DIAG 0x8080
#define USHPHY_REE_DAC_CONTROL 0x80b8
#define USHPHY_CDN_U1_POWER_STATE_DEF 0x0000
#endif /* _BAYTRAIL_IOSF_H_ */
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