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-rw-r--r--src/soc/amd/stoneyridge/include/soc/iomap.h2
-rw-r--r--src/soc/amd/stoneyridge/include/soc/smbus.h52
-rw-r--r--src/soc/amd/stoneyridge/include/soc/southbridge.h48
-rw-r--r--src/soc/amd/stoneyridge/sb_util.c10
-rw-r--r--src/soc/amd/stoneyridge/sm.c39
-rw-r--r--src/soc/amd/stoneyridge/smbus.c73
-rw-r--r--src/soc/amd/stoneyridge/smbus_spd.c30
-rw-r--r--src/soc/amd/stoneyridge/southbridge.c13
8 files changed, 134 insertions, 133 deletions
diff --git a/src/soc/amd/stoneyridge/include/soc/iomap.h b/src/soc/amd/stoneyridge/include/soc/iomap.h
index 78e8e090a3..b1010142ef 100644
--- a/src/soc/amd/stoneyridge/include/soc/iomap.h
+++ b/src/soc/amd/stoneyridge/include/soc/iomap.h
@@ -38,6 +38,8 @@
#define PM_MMIO_BASE 0xfed80300
#define BIOSRAM_MMIO_BASE 0xfed80500
#define ACPI_REG_MMIO_BASE 0xfed80800
+#define ASF_MMIO_BASE 0xfed80900
+#define SMBUS_MMIO_BASE 0xfed80a00
#define GPIO_IOMUX_MMIO_BASE 0xfed80d00
#define MISC_MMIO_BASE 0xfed80e00
#define XHCI_ACPI_PM_MMIO_BASE 0xfed81c00
diff --git a/src/soc/amd/stoneyridge/include/soc/smbus.h b/src/soc/amd/stoneyridge/include/soc/smbus.h
index 1bb4346186..71f7fafa5e 100644
--- a/src/soc/amd/stoneyridge/include/soc/smbus.h
+++ b/src/soc/amd/stoneyridge/include/soc/smbus.h
@@ -19,50 +19,6 @@
#include <stdint.h>
#include <soc/iomap.h>
-#define SMBHSTSTAT 0x0
-#define SMBHST_STAT_FAILED 0x10
-#define SMBHST_STAT_COLLISION 0x08
-#define SMBHST_STAT_ERROR 0x04
-#define SMBHST_STAT_INTERRUPT 0x02
-#define SMBHST_STAT_BUSY 0x01
-#define SMBHST_STAT_CLEAR 0xff
-#define SMBHST_STAT_NOERROR 0x02
-#define SMBHST_STAT_VAL_BITS 0x1f
-#define SMBHST_STAT_ERROR_BITS 0x1c
-
-#define SMBSLVSTAT 0x1
-#define SMBSLV_STAT_ALERT 0x20
-#define SMBSLV_STAT_SHADOW2 0x10
-#define SMBSLV_STAT_SHADOW1 0x08
-#define SMBSLV_STAT_SLV_STS 0x04
-#define SMBSLV_STAT_SLV_INIT 0x02
-#define SMBSLV_STAT_SLV_BUSY 0x01
-#define SMBSLV_STAT_CLEAR 0x1f
-
-#define SMBHSTCTRL 0x2
-#define SMBHST_CTRL_RST 0x80
-#define SMBHST_CTRL_STRT 0x40
-#define SMBHST_CTRL_QCK_RW 0x00
-#define SMBHST_CTRL_BTE_RW 0x04
-#define SMBHST_CTRL_BDT_RW 0x08
-#define SMBHST_CTRL_WDT_RW 0x0c
-#define SMBHST_CTRL_BLK_RW 0x14
-#define SMBHST_CTRL_MODE_BITS 0x1c
-#define SMBHST_CTRL_KILL 0x02
-#define SMBHST_CTRL_IEN 0x01
-
-#define SMBHSTCMD 0x3
-#define SMBHSTADDR 0x4
-#define SMBHSTDAT0 0x5
-#define SMBHSTDAT1 0x6
-#define SMBHSTBLKDAT 0x7
-#define SMBSLVCTRL 0x8
-#define SMBSLVCMD_SHADOW 0x9
-#define SMBSLVEVT 0xa
-#define SMBSLVDAT 0xc
-#define SMBTIMING 0xe
-
-#define SMB_ASF_IO_BASE 0x01
#define SMB_SPEED_400KHZ (66000000 / (400000 * 4))
#define AX_INDXC 0
@@ -91,10 +47,10 @@
#define rcindxp_reg(reg, port, mask, val) \
alink_rc_indx((RC_INDXP), (reg), (port), (mask), (val))
-int do_smbus_read_byte(u16 smbus_io_base, u8 device, u8 address);
-int do_smbus_write_byte(u16 smbus_io_base, u8 device, u8 address, u8 val);
-int do_smbus_recv_byte(u16 smbus_io_base, u8 device);
-int do_smbus_send_byte(u16 smbus_io_base, u8 device, u8 val);
+int do_smbus_read_byte(u32 mmio, u8 device, u8 address);
+int do_smbus_write_byte(u32 mmio, u8 device, u8 address, u8 val);
+int do_smbus_recv_byte(u32 mmio, u8 device);
+int do_smbus_send_byte(u32 mmio, u8 device, u8 val);
void alink_rc_indx(u32 reg_space, u32 reg_addr, u32 port, u32 mask, u32 val);
void alink_ab_indx(u32 reg_space, u32 reg_addr, u32 mask, u32 val);
void alink_ax_indx(u32 space /*c or p? */, u32 axindc, u32 mask, u32 val);
diff --git a/src/soc/amd/stoneyridge/include/soc/southbridge.h b/src/soc/amd/stoneyridge/include/soc/southbridge.h
index adf3af243d..1652bbc56f 100644
--- a/src/soc/amd/stoneyridge/include/soc/southbridge.h
+++ b/src/soc/amd/stoneyridge/include/soc/southbridge.h
@@ -39,6 +39,8 @@
#define FORCE_SLPSTATE_RETRY BIT(25)
#define FORCE_STPCLK_RETRY BIT(24)
+#define SMB_ASF_IO_BASE 0x01 /* part of PM_DECODE_EN */
+
#define PWR_RESET_CFG 0x10
#define TOGGLE_ALL_PWR_GOOD BIT(1)
@@ -111,6 +113,50 @@
#define MMIO_ACPI_GPE0_EN 0x18
#define MMIO_ACPI_PM_TMR_BLK 0x08
+/* SMBUS MMIO offsets 0xfed80a00 */
+#define SMBHSTSTAT 0x0
+#define SMBHST_STAT_FAILED 0x10
+#define SMBHST_STAT_COLLISION 0x08
+#define SMBHST_STAT_ERROR 0x04
+#define SMBHST_STAT_INTERRUPT 0x02
+#define SMBHST_STAT_BUSY 0x01
+#define SMBHST_STAT_CLEAR 0xff
+#define SMBHST_STAT_NOERROR 0x02
+#define SMBHST_STAT_VAL_BITS 0x1f
+#define SMBHST_STAT_ERROR_BITS 0x1c
+
+#define SMBSLVSTAT 0x1
+#define SMBSLV_STAT_ALERT 0x20
+#define SMBSLV_STAT_SHADOW2 0x10
+#define SMBSLV_STAT_SHADOW1 0x08
+#define SMBSLV_STAT_SLV_STS 0x04
+#define SMBSLV_STAT_SLV_INIT 0x02
+#define SMBSLV_STAT_SLV_BUSY 0x01
+#define SMBSLV_STAT_CLEAR 0x1f
+
+#define SMBHSTCTRL 0x2
+#define SMBHST_CTRL_RST 0x80
+#define SMBHST_CTRL_STRT 0x40
+#define SMBHST_CTRL_QCK_RW 0x00
+#define SMBHST_CTRL_BTE_RW 0x04
+#define SMBHST_CTRL_BDT_RW 0x08
+#define SMBHST_CTRL_WDT_RW 0x0c
+#define SMBHST_CTRL_BLK_RW 0x14
+#define SMBHST_CTRL_MODE_BITS 0x1c
+#define SMBHST_CTRL_KILL 0x02
+#define SMBHST_CTRL_IEN 0x01
+
+#define SMBHSTCMD 0x3
+#define SMBHSTADDR 0x4
+#define SMBHSTDAT0 0x5
+#define SMBHSTDAT1 0x6
+#define SMBHSTBLKDAT 0x7
+#define SMBSLVCTRL 0x8
+#define SMBSLVCMD_SHADOW 0x9
+#define SMBSLVEVT 0xa
+#define SMBSLVDAT 0xc
+#define SMBTIMING 0xe
+
/* FCH MISC Registers 0xfed80e00 */
#define GPP_CLK_CNTRL 0x00
#define GPP_CLK2_REQ_MAP_SHIFT 8
@@ -480,6 +526,8 @@ void xhci_pm_write16(uint8_t reg, uint16_t value);
uint16_t xhci_pm_read16(uint8_t reg);
void xhci_pm_write32(uint8_t reg, uint32_t value);
uint32_t xhci_pm_read32(uint8_t reg);
+void smbus_write8(uint32_t mmio, uint8_t reg, uint8_t value);
+uint8_t smbus_read8(uint32_t mmio, uint8_t reg);
void bootblock_fch_early_init(void);
void bootblock_fch_init(void);
/**
diff --git a/src/soc/amd/stoneyridge/sb_util.c b/src/soc/amd/stoneyridge/sb_util.c
index ccbde7e5d9..eeb550cb7f 100644
--- a/src/soc/amd/stoneyridge/sb_util.c
+++ b/src/soc/amd/stoneyridge/sb_util.c
@@ -200,6 +200,16 @@ uint32_t xhci_pm_read32(uint8_t reg)
return read32((void *)(XHCI_ACPI_PM_MMIO_BASE + reg));
}
+void smbus_write8(uint32_t mmio, uint8_t reg, uint8_t value)
+{
+ write8((void *)(mmio + reg), value);
+}
+
+uint8_t smbus_read8(uint32_t mmio, uint8_t reg)
+{
+ return read8((void *)(mmio + reg));
+}
+
int acpi_get_sleep_type(void)
{
return acpi_sleep_from_pm1(inw(pm_acpi_pm_cnt_blk()));
diff --git a/src/soc/amd/stoneyridge/sm.c b/src/soc/amd/stoneyridge/sm.c
index 22cbde8854..82c265e475 100644
--- a/src/soc/amd/stoneyridge/sm.c
+++ b/src/soc/amd/stoneyridge/sm.c
@@ -35,60 +35,49 @@ static void sm_init(struct device *dev)
setup_ioapic(VIO_APIC_VADDR, CONFIG_MAX_CPUS);
}
-static int lsmbus_recv_byte(struct device *dev)
+static u32 get_sm_mmio(struct device *dev)
{
- u8 device;
struct resource *res;
struct bus *pbus;
- device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
-
res = find_resource(pbus->dev, 0x90);
+ if (res->base == SMB_BASE_ADDR)
+ return SMBUS_MMIO_BASE;
- return do_smbus_recv_byte(res->base, device);
+ return ASF_MMIO_BASE;
}
-static int lsmbus_send_byte(struct device *dev, u8 val)
+static int lsmbus_recv_byte(struct device *dev)
{
u8 device;
- struct resource *res;
- struct bus *pbus;
device = dev->path.i2c.device;
- pbus = get_pbus_smbus(dev);
+ return do_smbus_recv_byte(get_sm_mmio(dev), device);
+}
- res = find_resource(pbus->dev, 0x90);
+static int lsmbus_send_byte(struct device *dev, u8 val)
+{
+ u8 device;
- return do_smbus_send_byte(res->base, device, val);
+ device = dev->path.i2c.device;
+ return do_smbus_send_byte(get_sm_mmio(dev), device, val);
}
static int lsmbus_read_byte(struct device *dev, u8 address)
{
u8 device;
- struct resource *res;
- struct bus *pbus;
device = dev->path.i2c.device;
- pbus = get_pbus_smbus(dev);
-
- res = find_resource(pbus->dev, 0x90);
-
- return do_smbus_read_byte(res->base, device, address);
+ return do_smbus_read_byte(get_sm_mmio(dev), device, address);
}
static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
{
u8 device;
- struct resource *res;
- struct bus *pbus;
device = dev->path.i2c.device;
- pbus = get_pbus_smbus(dev);
-
- res = find_resource(pbus->dev, 0x90);
-
- return do_smbus_write_byte(res->base, device, address, val);
+ return do_smbus_write_byte(get_sm_mmio(dev), device, address, val);
}
static struct smbus_bus_operations lops_smbus_bus = {
.recv_byte = lsmbus_recv_byte,
diff --git a/src/soc/amd/stoneyridge/smbus.c b/src/soc/amd/stoneyridge/smbus.c
index 919a52edd4..21750d8be9 100644
--- a/src/soc/amd/stoneyridge/smbus.c
+++ b/src/soc/amd/stoneyridge/smbus.c
@@ -16,143 +16,144 @@
#include <io.h>
#include <stdint.h>
#include <soc/smbus.h>
+#include <soc/southbridge.h>
-static int smbus_wait_until_ready(u16 smbus_io_base)
+static int smbus_wait_until_ready(u32 mmio)
{
u32 loops;
loops = SMBUS_TIMEOUT;
do {
u8 val;
- val = inb(smbus_io_base + SMBHSTSTAT);
+ val = smbus_read8(mmio, SMBHSTSTAT);
val &= SMBHST_STAT_VAL_BITS;
if (val == 0) { /* ready now */
return 0;
}
- outb(val, smbus_io_base + SMBHSTSTAT);
+ smbus_write8(mmio, SMBHSTSTAT, val);
} while (--loops);
return -2; /* time out */
}
-static int smbus_wait_until_done(u16 smbus_io_base)
+static int smbus_wait_until_done(u32 mmio)
{
u32 loops;
loops = SMBUS_TIMEOUT;
do {
u8 val;
- val = inb(smbus_io_base + SMBHSTSTAT);
+ val = smbus_read8(mmio, SMBHSTSTAT);
val &= SMBHST_STAT_VAL_BITS; /* mask off reserved bits */
if (val & SMBHST_STAT_ERROR_BITS)
return -5; /* error */
if (val == SMBHST_STAT_NOERROR) {
- outb(val, smbus_io_base + SMBHSTSTAT); /* clear sts */
+ smbus_write8(mmio, SMBHSTSTAT, val); /* clear sts */
return 0;
}
} while (--loops);
return -3; /* timeout */
}
-int do_smbus_recv_byte(u16 smbus_io_base, u8 device)
+int do_smbus_recv_byte(u32 mmio, u8 device)
{
u8 byte;
- if (smbus_wait_until_ready(smbus_io_base) < 0)
+ if (smbus_wait_until_ready(mmio) < 0)
return -2; /* not ready */
/* set the device I'm talking to */
- outb(((device & 0x7f) << 1) | 1, smbus_io_base + SMBHSTADDR);
+ smbus_write8(mmio, SMBHSTADDR, ((device & 0x7f) << 1) | 1);
- byte = inb(smbus_io_base + SMBHSTCTRL);
+ byte = smbus_read8(mmio, SMBHSTCTRL);
byte &= ~SMBHST_CTRL_MODE_BITS; /* Clear [4:2] */
byte |= SMBHST_CTRL_STRT | SMBHST_CTRL_BTE_RW; /* set mode, start */
- outb(byte, smbus_io_base + SMBHSTCTRL);
+ smbus_write8(mmio, SMBHSTCTRL, byte);
/* poll for transaction completion */
- if (smbus_wait_until_done(smbus_io_base) < 0)
+ if (smbus_wait_until_done(mmio) < 0)
return -3; /* timeout or error */
/* read results of transaction */
- byte = inb(smbus_io_base + SMBHSTDAT0);
+ byte = smbus_read8(mmio, SMBHSTDAT0);
return byte;
}
-int do_smbus_send_byte(u16 smbus_io_base, u8 device, u8 val)
+int do_smbus_send_byte(u32 mmio, u8 device, u8 val)
{
u8 byte;
- if (smbus_wait_until_ready(smbus_io_base) < 0)
+ if (smbus_wait_until_ready(mmio) < 0)
return -2; /* not ready */
/* set the command... */
- outb(val, smbus_io_base + SMBHSTDAT0);
+ smbus_write8(mmio, SMBHSTDAT0, val);
/* set the device I'm talking to */
- outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBHSTADDR);
+ smbus_write8(mmio, SMBHSTADDR, ((device & 0x7f) << 1) | 0);
- byte = inb(smbus_io_base + SMBHSTCTRL);
+ byte = smbus_read8(mmio, SMBHSTCTRL);
byte &= ~SMBHST_CTRL_MODE_BITS; /* Clear [4:2] */
byte |= SMBHST_CTRL_STRT | SMBHST_CTRL_BTE_RW; /* set mode, start */
- outb(byte, smbus_io_base + SMBHSTCTRL);
+ smbus_write8(mmio, SMBHSTCTRL, byte);
/* poll for transaction completion */
- if (smbus_wait_until_done(smbus_io_base) < 0)
+ if (smbus_wait_until_done(mmio) < 0)
return -3; /* timeout or error */
return 0;
}
-int do_smbus_read_byte(u16 smbus_io_base, u8 device, u8 address)
+int do_smbus_read_byte(u32 mmio, u8 device, u8 address)
{
u8 byte;
- if (smbus_wait_until_ready(smbus_io_base) < 0)
+ if (smbus_wait_until_ready(mmio) < 0)
return -2; /* not ready */
/* set the command/address... */
- outb(address & 0xff, smbus_io_base + SMBHSTCMD);
+ smbus_write8(mmio, SMBHSTCMD, address & 0xff);
/* set the device I'm talking to */
- outb(((device & 0x7f) << 1) | 1, smbus_io_base + SMBHSTADDR);
+ smbus_write8(mmio, SMBHSTADDR, ((device & 0x7f) << 1) | 1);
- byte = inb(smbus_io_base + SMBHSTCTRL);
+ byte = smbus_read8(mmio, SMBHSTCTRL);
byte &= ~SMBHST_CTRL_MODE_BITS; /* Clear [4:2] */
byte |= SMBHST_CTRL_STRT | SMBHST_CTRL_BDT_RW; /* set mode, start */
- outb(byte, smbus_io_base + SMBHSTCTRL);
+ smbus_write8(mmio, SMBHSTCTRL, byte);
/* poll for transaction completion */
- if (smbus_wait_until_done(smbus_io_base) < 0)
+ if (smbus_wait_until_done(mmio) < 0)
return -3; /* timeout or error */
/* read results of transaction */
- byte = inb(smbus_io_base + SMBHSTDAT0);
+ byte = smbus_read8(mmio, SMBHSTDAT0);
return byte;
}
-int do_smbus_write_byte(u16 smbus_io_base, u8 device, u8 address, u8 val)
+int do_smbus_write_byte(u32 mmio, u8 device, u8 address, u8 val)
{
u8 byte;
- if (smbus_wait_until_ready(smbus_io_base) < 0)
+ if (smbus_wait_until_ready(mmio) < 0)
return -2; /* not ready */
/* set the command/address... */
- outb(address & 0xff, smbus_io_base + SMBHSTCMD);
+ smbus_write8(mmio, SMBHSTCMD, address & 0xff);
/* set the device I'm talking to */
- outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBHSTADDR);
+ smbus_write8(mmio, SMBHSTADDR, ((device & 0x7f) << 1) | 0);
/* output value */
- outb(val, smbus_io_base + SMBHSTDAT0);
+ smbus_write8(mmio, SMBHSTDAT0, val);
- byte = inb(smbus_io_base + SMBHSTCTRL);
+ byte = smbus_read8(mmio, SMBHSTCTRL);
byte &= ~SMBHST_CTRL_MODE_BITS; /* Clear [4:2] */
byte |= SMBHST_CTRL_STRT | SMBHST_CTRL_BDT_RW; /* set mode, start */
- outb(byte, smbus_io_base + SMBHSTCTRL);
+ smbus_write8(mmio, SMBHSTCTRL, byte);
/* poll for transaction completion */
- if (smbus_wait_until_done(smbus_io_base) < 0)
+ if (smbus_wait_until_done(mmio) < 0)
return -3; /* timeout or error */
return 0;
diff --git a/src/soc/amd/stoneyridge/smbus_spd.c b/src/soc/amd/stoneyridge/smbus_spd.c
index 384bc8a391..63b457c2c8 100644
--- a/src/soc/amd/stoneyridge/smbus_spd.c
+++ b/src/soc/amd/stoneyridge/smbus_spd.c
@@ -27,8 +27,7 @@
* sending offset for every byte.
* Reads 128 bytes in 7-8 ms at 400 KHz.
*/
-static int readspd(uint16_t iobase, uint8_t SmbusSlaveAddress,
- char *buffer, size_t count)
+static int readspd(uint8_t SmbusSlaveAddress, char *buffer, size_t count)
{
uint8_t dev_addr;
size_t index;
@@ -36,8 +35,8 @@ static int readspd(uint16_t iobase, uint8_t SmbusSlaveAddress,
char *pbuf = buffer;
printk(BIOS_SPEW, "-------------READING SPD-----------\n");
- printk(BIOS_SPEW, "iobase: 0x%08X, SmbusSlave: 0x%08X, count: %d\n",
- iobase, SmbusSlaveAddress, (int)count);
+ printk(BIOS_SPEW, "SmbusSlave: 0x%08X, count: %zd\n",
+ SmbusSlaveAddress, count);
/*
* Convert received device address to the format accepted by
@@ -46,7 +45,7 @@ static int readspd(uint16_t iobase, uint8_t SmbusSlaveAddress,
dev_addr = (SmbusSlaveAddress >> 1);
/* Read the first SPD byte */
- error = do_smbus_read_byte(iobase, dev_addr, 0);
+ error = do_smbus_read_byte(SMBUS_MMIO_BASE, dev_addr, 0);
if (error < 0) {
printk(BIOS_ERR, "-------------SPD READ ERROR-----------\n");
return error;
@@ -56,7 +55,7 @@ static int readspd(uint16_t iobase, uint8_t SmbusSlaveAddress,
/* Read the remaining SPD bytes using do_smbus_recv_byte for speed */
for (index = 1 ; index < count ; index++) {
- error = do_smbus_recv_byte(iobase, dev_addr);
+ error = do_smbus_recv_byte(SMBUS_MMIO_BASE, dev_addr);
if (error < 0) {
printk(BIOS_ERR, "-------------SPD READ ERROR-----------\n");
return error;
@@ -70,24 +69,7 @@ static int readspd(uint16_t iobase, uint8_t SmbusSlaveAddress,
return 0;
}
-static void write_pm_reg(int reg, int data)
-{
- outb(reg, PM_INDEX);
- outb(data, PM_DATA);
-}
-
-static void setup_fch(uint16_t ioBase)
-{
- write_pm_reg(SMB_ASF_IO_BASE, ioBase >> 8);
- outb(SMB_SPEED_400KHZ, ioBase + SMBTIMING);
- /* Clear all SMBUS status bits */
- outb(SMBHST_STAT_CLEAR, ioBase + SMBHSTSTAT);
- outb(SMBSLV_STAT_CLEAR, ioBase + SMBSLVSTAT);
-}
-
int sb_read_spd(uint8_t spdAddress, char *buf, size_t len)
{
- uint16_t ioBase = SMB_BASE_ADDR;
- setup_fch(ioBase);
- return readspd(ioBase, spdAddress, buf, len);
+ return readspd(spdAddress, buf, len);
}
diff --git a/src/soc/amd/stoneyridge/southbridge.c b/src/soc/amd/stoneyridge/southbridge.c
index eb4188219b..c8d66ac3f2 100644
--- a/src/soc/amd/stoneyridge/southbridge.c
+++ b/src/soc/amd/stoneyridge/southbridge.c
@@ -28,6 +28,7 @@
#include <amdblocks/agesawrapper.h>
#include <amdblocks/reset.h>
#include <soc/southbridge.h>
+#include <soc/smbus.h>
#include <soc/smi.h>
#include <soc/amd_pci_int_defs.h>
#include <delay.h>
@@ -619,6 +620,17 @@ static void setup_misc(int *reboot)
}
}
+static void fch_smbus_init(void)
+{
+ pm_write8(SMB_ASF_IO_BASE, SMB_BASE_ADDR >> 8);
+ smbus_write8(SMBUS_MMIO_BASE, SMBTIMING, SMB_SPEED_400KHZ);
+ /* Clear all SMBUS status bits */
+ smbus_write8(SMBUS_MMIO_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR);
+ smbus_write8(SMBUS_MMIO_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR);
+ smbus_write8(ASF_MMIO_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR);
+ smbus_write8(ASF_MMIO_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR);
+}
+
/* Before console init */
void bootblock_fch_early_init(void)
{
@@ -631,6 +643,7 @@ void bootblock_fch_early_init(void)
sb_spibase();
sb_disable_4dw_burst(); /* Must be disabled on CZ(ST) */
sb_acpi_mmio_decode();
+ fch_smbus_init();
sb_enable_cf9_io();
setup_spread_spectrum(&reboot);
setup_misc(&reboot);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 05:21:07 +0000