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soc/intel/skylake: Use intel/common/block/smbus code

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Change-Id: I2ca32ab594552424e4f1358302641f159a3d7e62
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/19373
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Aamir Bohra 2017-04-19 22:34:25 +05:30 committed by Martin Roth
parent 709bc6eada
commit 502131a6ad
10 changed files with 8 additions and 369 deletions
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1
src/soc/intel/skylake/Kconfig
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@ -58,6 +58,7 @@ config CPU_SPECIFIC_OPTIONS
select SOC_INTEL_COMMON_BLOCK_PCR
select SOC_INTEL_COMMON_BLOCK_RTC
select SOC_INTEL_COMMON_BLOCK_SA
select SOC_INTEL_COMMON_BLOCK_SMBUS
select SOC_INTEL_COMMON_BLOCK_UART
select SOC_INTEL_COMMON_BLOCK_XHCI
select SOC_INTEL_COMMON_LPSS_I2C

5
src/soc/intel/skylake/Makefile.inc
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@ -14,7 +14,6 @@ bootblock-y += bootblock/cpu.c
bootblock-y += bootblock/i2c.c
bootblock-y += bootblock/pch.c
bootblock-y += bootblock/report_platform.c
bootblock-y += bootblock/smbus.c
bootblock-$(CONFIG_UART_DEBUG) += bootblock/uart.c
bootblock-$(CONFIG_UART_DEBUG) += uart_debug.c
bootblock-y += gpio.c
@ -44,8 +43,6 @@ romstage-y += pch.c
romstage-y += pei_data.c
romstage-y += pmutil.c
romstage-$(CONFIG_PLATFORM_USES_FSP2_0) += reset.c
romstage-y += smbus_common.c
romstage-y += early_smbus.c
romstage-y += spi.c
romstage-y += tsc_freq.c
romstage-$(CONFIG_UART_DEBUG) += uart_debug.c
@ -77,8 +74,6 @@ ramstage-$(CONFIG_PLATFORM_USES_FSP2_0) += reset.c
ramstage-y += sata.c
ramstage-y += sd.c
ramstage-y += sgx.c
ramstage-y += smbus.c
ramstage-y += smbus_common.c
ramstage-y += smi.c
ramstage-y += smmrelocate.c
ramstage-y += spi.c

7
src/soc/intel/skylake/bootblock/pch.c
View File

@ -22,6 +22,7 @@
#include <intelblocks/itss.h>
#include <intelblocks/pcr.h>
#include <intelblocks/rtc.h>
#include <intelblocks/smbus.h>
#include <soc/bootblock.h>
#include <soc/iomap.h>
#include <soc/lpc.h>
@ -182,14 +183,14 @@ static void soc_config_tco(void)
/* Disable TCO in SMBUS Device first before changing Base Address */
reg32 = pci_read_config32(PCH_DEV_SMBUS, TCOCTL);
reg32 &= ~SMBUS_TCO_EN;
reg32 &= ~TCO_EN;
pci_write_config32(PCH_DEV_SMBUS, TCOCTL, reg32);
/* Program TCO Base */
pci_write_config32(PCH_DEV_SMBUS, TCOBASE, TCO_BASE_ADDDRESS);
/* Enable TCO in SMBUS */
pci_write_config32(PCH_DEV_SMBUS, TCOCTL, reg32 | SMBUS_TCO_EN);
pci_write_config32(PCH_DEV_SMBUS, TCOCTL, reg32 | TCO_EN);
/*
* Program "TCO Base Address" PCR[DMI] + 2778h[15:5, 1]
@ -269,7 +270,7 @@ void pch_early_init(void)
pch_enable_lpc();
/* Program SMBUS_BASE_ADDRESS and Enable it */
enable_smbus();
smbus_common_init();
/* Set up GPE configuration */
pmc_gpe_init();

46
src/soc/intel/skylake/bootblock/smbus.c
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@ -1,46 +0,0 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 coresystems GmbH
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* 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.
*/
#include <arch/io.h>
#include <console/console.h>
#include <device/pci_ids.h>
#include <device/pci_def.h>
#include <reg_script.h>
#include <soc/bootblock.h>
#include <soc/iomap.h>
#include <soc/pci_devs.h>
#include <soc/smbus.h>
static const struct reg_script smbus_init_script[] = {
/* Set SMBUS I/O base address */
REG_PCI_WRITE32(SMB_BASE, SMBUS_BASE_ADDRESS | 1),
/* Set SMBUS enable */
REG_PCI_WRITE8(HOSTC, HST_EN),
/* Enable I/O access */
REG_PCI_WRITE16(PCI_COMMAND, PCI_COMMAND_IO),
/* Disable interrupts */
REG_IO_WRITE8(SMBUS_BASE_ADDRESS + SMBHSTCTL, 0),
/* Clear errors */
REG_IO_WRITE8(SMBUS_BASE_ADDRESS + SMBHSTSTAT, 0xff),
/* Indicate the end of this array by REG_SCRIPT_END */
REG_SCRIPT_END,
};
void enable_smbus(void)
{
reg_script_run_on_dev(PCH_DEV_SMBUS, smbus_init_script);
}

30
src/soc/intel/skylake/early_smbus.c
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@ -1,30 +0,0 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2016 Intel Corporation.
*
* 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.
*/
#include <console/console.h>
#include <device/smbus_def.h>
#include <device/early_smbus.h>
#include <soc/smbus.h>
#include <soc/iomap.h>
u8 smbus_read_byte(u32 smbus_dev, u8 addr, u8 offset)
{
return do_smbus_read_byte(SMBUS_BASE_ADDRESS, addr, offset);
}
u8 smbus_write_byte(u32 smbus_dev, u8 addr, u8 offset, u8 value)
{
return do_smbus_write_byte(SMBUS_BASE_ADDRESS, addr, offset, value);
}

1
src/soc/intel/skylake/include/soc/bootblock.h
View File

@ -30,7 +30,6 @@ void bootblock_pch_early_init(void);
void pch_uart_init(void);
/* Bootblock post console init programing */
void enable_smbus(void);
void i2c_early_init(void);
void pch_early_init(void);
void pch_early_iorange_init(void);

2
src/soc/intel/skylake/include/soc/pm.h
View File

@ -51,7 +51,7 @@
#define INTEL_USB2_EN (1 << 18)
#define LEGACY_USB2_EN (1 << 17)
#define PERIODIC_EN (1 << 14)
#define TCO_EN (1 << 13)
#define TCO_SMI_EN (1 << 13)
#define MCSMI_EN (1 << 11)
#define BIOS_RLS (1 << 7)
#define SWSMI_TMR_EN (1 << 6)

24
src/soc/intel/skylake/include/soc/smbus.h
View File

@ -20,14 +20,12 @@
#define _SOC_SMBUS_H_
/* PCI Configuration Space (D31:F3): SMBus */
#define SMB_BASE 0x20
#define HOSTC 0x40
#define HST_EN (1 << 0)
#define SMB_RCV_SLVA 0x09
/* SMBUS TCO base address. */
#define TCOBASE 0x50
#define TCOCTL 0x54
#define SMBUS_TCO_EN (1 << 8)
#define TCO_EN (1 << 8)
/* TCO registers and fields live behind TCOBASE I/O bar in SMBus device. */
#define TCO1_STS 0x04
@ -39,24 +37,6 @@
#define TCO_TMR_HLT (1 << 11)
/* SMBus I/O bits. */
#define SMBHSTSTAT 0x0
#define SMBHSTCTL 0x2
#define SMBHSTCMD 0x3
#define SMBXMITADD 0x4
#define SMBHSTDAT0 0x5
#define SMBHSTDAT1 0x6
#define SMBBLKDAT 0x7
#define SMBTRNSADD 0x9
#define SMBSLVDATA 0xa
#define SMLINK_PIN_CTL 0xe
#define SMBUS_PIN_CTL 0xf
#define SMBUS_TIMEOUT (10 * 1000 * 100)
#define SMBUS_SLAVE_ADDR 0x24
int do_smbus_read_byte(unsigned int smbus_base, unsigned int device,
unsigned int address);
int do_smbus_write_byte(unsigned int smbus_base, unsigned int device,
unsigned int address, unsigned int data);
#endif

110
src/soc/intel/skylake/smbus.c
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@ -1,110 +0,0 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 coresystems GmbH
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* 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.
*/
#include <arch/io.h>
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
#include <device/smbus.h>
#include <device/smbus_def.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <soc/iomap.h>
#include <soc/ramstage.h>
#include <soc/smbus.h>
static void pch_smbus_init(device_t dev)
{
struct resource *res;
u16 reg16;
/* Enable clock gating */
reg16 = pci_read_config32(dev, 0x80);
reg16 &= ~((1 << 8)|(1 << 10)|(1 << 12)|(1 << 14));
pci_write_config32(dev, 0x80, reg16);
/* Set Receive Slave Address */
res = find_resource(dev, PCI_BASE_ADDRESS_4);
if (res)
outb(SMBUS_SLAVE_ADDR, res->base + SMB_RCV_SLVA);
}
static int lsmbus_read_byte(device_t dev, u8 address)
{
u16 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
return do_smbus_read_byte(res->base, device, address);
}
static int lsmbus_write_byte(device_t dev, u8 address, u8 data)
{
u16 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
return do_smbus_write_byte(res->base, device, address, data);
}
static struct smbus_bus_operations lops_smbus_bus = {
.read_byte = lsmbus_read_byte,
.write_byte = lsmbus_write_byte,
};
static void smbus_read_resources(device_t dev)
{
struct resource *res = new_resource(dev, PCI_BASE_ADDRESS_4);
res->base = SMBUS_BASE_ADDRESS;
res->size = 32;
res->limit = res->base + res->size - 1;
res->flags = IORESOURCE_IO | IORESOURCE_FIXED | IORESOURCE_RESERVE |
IORESOURCE_STORED | IORESOURCE_ASSIGNED;
/* Also add MMIO resource */
res = pci_get_resource(dev, PCI_BASE_ADDRESS_0);
}
static struct device_operations smbus_ops = {
.read_resources = &smbus_read_resources,
.set_resources = &pci_dev_set_resources,
.enable_resources = &pci_dev_enable_resources,
.scan_bus = &scan_smbus,
.init = &pch_smbus_init,
.ops_smbus_bus = &lops_smbus_bus,
.ops_pci = &soc_pci_ops,
};
static const unsigned short pci_device_ids[] = {
0x9d23, /* SunRisePoint LP */
0xa123, /* SunRisePoint H */
0
};
static const struct pci_driver pch_smbus __pci_driver = {
.ops = &smbus_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};

151
src/soc/intel/skylake/smbus_common.c
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@ -1,151 +0,0 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2005 Yinghai Lu <yinghailu@gmail.com>
* Copyright (C) 2008-2009 coresystems GmbH
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* 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.
*/
#include <arch/io.h>
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
#include <device/smbus_def.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <soc/ramstage.h>
#include <soc/smbus.h>
static void smbus_delay(void)
{
inb(0x80);
}
static int smbus_wait_until_ready(u16 smbus_base)
{
unsigned int loops = SMBUS_TIMEOUT;
unsigned char byte;
do {
smbus_delay();
if (--loops == 0)
break;
byte = inb(smbus_base + SMBHSTSTAT);
} while (byte & 1);
return loops ? 0 : -1;
}
static int smbus_wait_until_done(u16 smbus_base)
{
unsigned int loops = SMBUS_TIMEOUT;
unsigned char byte;
do {
smbus_delay();
if (--loops == 0)
break;
byte = inb(smbus_base + SMBHSTSTAT);
} while ((byte & 1) || (byte & ~((1 << 6) | (1 << 0))) == 0);
return loops ? 0 : -1;
}
int do_smbus_read_byte(unsigned int smbus_base, unsigned int device,
unsigned int address)
{
unsigned char global_status_register;
unsigned char byte;
if (smbus_wait_until_ready(smbus_base) < 0)
return SMBUS_WAIT_UNTIL_READY_TIMEOUT;
/* Setup transaction */
/* Disable interrupts */
outb(inb(smbus_base + SMBHSTCTL) & (~1), smbus_base + SMBHSTCTL);
/* Set the device I'm talking too */
outb(((device & 0x7f) << 1) | 1, smbus_base + SMBXMITADD);
/* Set the command/address... */
outb(address & 0xff, smbus_base + SMBHSTCMD);
/* Set up for a byte data read */
outb((inb(smbus_base + SMBHSTCTL) & 0xe3) | (0x2 << 2),
(smbus_base + SMBHSTCTL));
/* Clear any lingering errors, so the transaction will run */
outb(inb(smbus_base + SMBHSTSTAT), smbus_base + SMBHSTSTAT);
/* Clear the data byte... */
outb(0, smbus_base + SMBHSTDAT0);
/* Start the command */
outb((inb(smbus_base + SMBHSTCTL) | 0x40),
smbus_base + SMBHSTCTL);
/* Poll for transaction completion */
if (smbus_wait_until_done(smbus_base) < 0)
return SMBUS_WAIT_UNTIL_DONE_TIMEOUT;
global_status_register = inb(smbus_base + SMBHSTSTAT);
/* Ignore the "In Use" status... */
global_status_register &= ~(3 << 5);
/* Read results of transaction */
byte = inb(smbus_base + SMBHSTDAT0);
if (global_status_register != (1 << 1))
return SMBUS_ERROR;
return byte;
}
int do_smbus_write_byte(unsigned int smbus_base, unsigned int device,
unsigned int address, unsigned int data)
{
unsigned char global_status_register;
if (smbus_wait_until_ready(smbus_base) < 0)
return SMBUS_WAIT_UNTIL_READY_TIMEOUT;
/* Setup transaction */
/* Disable interrupts */
outb(inb(smbus_base + SMBHSTCTL) & (~1), smbus_base + SMBHSTCTL);
/* Set the device I'm talking too */
outb(((device & 0x7f) << 1) & ~0x01, smbus_base + SMBXMITADD);
/* Set the command/address... */
outb(address & 0xff, smbus_base + SMBHSTCMD);
/* Set up for a byte data read */
outb((inb(smbus_base + SMBHSTCTL) & 0xe3) | (0x2 << 2),
(smbus_base + SMBHSTCTL));
/* Clear any lingering errors, so the transaction will run */
outb(inb(smbus_base + SMBHSTSTAT), smbus_base + SMBHSTSTAT);
/* Clear the data byte... */
outb(data, smbus_base + SMBHSTDAT0);
/* Start the command */
outb((inb(smbus_base + SMBHSTCTL) | 0x40),
smbus_base + SMBHSTCTL);
/* Poll for transaction completion */
if (smbus_wait_until_done(smbus_base) < 0) {
printk(BIOS_ERR, "SMBUS transaction timeout\n");
return SMBUS_WAIT_UNTIL_DONE_TIMEOUT;
}
global_status_register = inb(smbus_base + SMBHSTSTAT);
/* Ignore the "In Use" status... */
global_status_register &= ~(3 << 5);
/* Read results of transaction */
if (global_status_register != (1 << 1)) {
printk(BIOS_ERR, "SMBUS transaction error\n");
return SMBUS_ERROR;
}
return 0;
}