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-rw-r--r--src/southbridge/via/vt8231/vt8231_early_smbus.c83
1 files changed, 44 insertions, 39 deletions
diff --git a/src/southbridge/via/vt8231/vt8231_early_smbus.c b/src/southbridge/via/vt8231/vt8231_early_smbus.c
index 1dacb964e8..651f715413 100644
--- a/src/southbridge/via/vt8231/vt8231_early_smbus.c
+++ b/src/southbridge/via/vt8231/vt8231_early_smbus.c
@@ -57,15 +57,18 @@ static inline void smbus_delay(void)
static int smbus_wait_until_ready(void)
{
+ unsigned char c;
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
- c = my_inb(smbus_io_base + SMBHSTSTAT);
+ c = inb(SMBUS_IO_BASE + SMBHSTSTAT);
while((c & 1) == 1) {
- printk_err("c is 0x%x\n", c);
- c = my_inb(smbus_io_base + SMBHSTSTAT);
+ print_err("c is ");
+ print_err_hex8(c);
+ print_err("\n");
+ c = inb(SMBUS_IO_BASE + SMBHSTSTAT);
/* nop */
}
@@ -75,13 +78,15 @@ static int smbus_wait_until_ready(void)
void smbus_reset(void)
{
- my_outb(HOST_RESET, smbus_io_base + SMBHSTSTAT);
- my_outb(HOST_RESET, smbus_io_base + SMBHSTSTAT);
- my_outb(HOST_RESET, smbus_io_base + SMBHSTSTAT);
- my_outb(HOST_RESET, smbus_io_base + SMBHSTSTAT);
+ outb(HOST_RESET, SMBUS_IO_BASE + SMBHSTSTAT);
+ outb(HOST_RESET, SMBUS_IO_BASE + SMBHSTSTAT);
+ outb(HOST_RESET, SMBUS_IO_BASE + SMBHSTSTAT);
+ outb(HOST_RESET, SMBUS_IO_BASE + SMBHSTSTAT);
smbus_wait_until_ready();
- printk_err("After reset status %#x\n", my_inb(smbus_io_base + SMBHSTSTAT));
+ print_err("After reset status ");
+ print_err_hex8( inb(SMBUS_IO_BASE + SMBHSTSTAT));
+ print_err("\n");
}
@@ -89,12 +94,13 @@ void smbus_reset(void)
static int smbus_wait_until_done(void)
{
unsigned long loops;
+ unsigned char byte;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
- byte = my_inb(smbus_io_base + SMBHSTSTAT);
+ byte = inb(SMBUS_IO_BASE + SMBHSTSTAT);
if (byte & 1)
break;
@@ -105,65 +111,64 @@ static int smbus_wait_until_done(void)
static void smbus_print_error(unsigned char host_status_register)
{
- printk_err("smbus_error: 0x%02x\n", host_status_register);
+ print_err("smbus_error: ");
+ print_err_hex8(host_status_register);
+ print_err("\n");
if (host_status_register & (1 << 4)) {
- printk_err("Interrup/SMI# was Failed Bus Transaction\n");
+ print_err("Interrup/SMI# was Failed Bus Transaction\n");
}
if (host_status_register & (1 << 3)) {
- printk_err("Bus Error\n");
+ print_err("Bus Error\n");
}
if (host_status_register & (1 << 2)) {
- printk_err("Device Error\n");
+ print_err("Device Error\n");
}
if (host_status_register & (1 << 1)) {
- printk_err("Interrupt/SMI# was Successful Completion\n");
+ print_err("Interrupt/SMI# was Successful Completion\n");
}
if (host_status_register & (1 << 0)) {
- printk_err("Host Busy\n");
+ print_err("Host Busy\n");
}
}
/* SMBus routines borrowed from VIA's Trident Driver */
/* this works, so I am not going to touch it for now -- rgm */
-static unsigned char smbus_read(unsigned char devAdr, unsigned char bIndex,
- unsigned char *result)
+static unsigned char smbus_read_byte(unsigned char devAdr,
+ unsigned char bIndex)
{
unsigned short i;
unsigned char bData;
unsigned char sts;
/* clear host status */
- my_outb(0xff, smbus_io_base);
+ outb(0xff, SMBUS_IO_BASE);
/* check SMBUS ready */
for ( i = 0; i < 0xFFFF; i++ )
- if ( (my_inb(smbus_io_base) & 0x01) == 0 )
+ if ( (inb(SMBUS_IO_BASE) & 0x01) == 0 )
break;
/* set host command */
- my_outb(bIndex, smbus_io_base+3);
+ outb(bIndex, SMBUS_IO_BASE+3);
/* set slave address */
- my_outb(devAdr | 0x01, smbus_io_base+4);
+ outb(devAdr | 0x01, SMBUS_IO_BASE+4);
/* start */
- my_outb(0x48, smbus_io_base+2);
+ outb(0x48, SMBUS_IO_BASE+2);
/* SMBUS Wait Ready */
for ( i = 0; i < 0xFFFF; i++ )
- if ( ((sts = my_inb(smbus_io_base)) & 0x01) == 0 )
+ if ( ((sts = inb(SMBUS_IO_BASE)) & 0x01) == 0 )
break;
if ((sts & ~3) != 0) {
smbus_print_error(sts);
return 0;
}
- bData=my_inb(smbus_io_base+5);
-
- *result = bData;
+ bData=inb(SMBUS_IO_BASE+5);
- /* return 1 if ok */
- return 1;
+ return bData;
}
@@ -182,35 +187,35 @@ int smbus_read_byte(unsigned device, unsigned address, unsigned char *result)
/* setup transaction */
/* disable interrupts */
- my_outb(my_inb(smbus_io_base + SMBHSTCTL) & (~1), smbus_io_base + SMBHSTCTL);
+ outb(inb(SMBUS_IO_BASE + SMBHSTCTL) & (~1), SMBUS_IO_BASE + SMBHSTCTL);
/* set the device I'm talking too */
- my_outb(((device & 0x7f) << 1) | 1, smbus_io_base + SMBXMITADD);
+ outb(((device & 0x7f) << 1) | 1, SMBUS_IO_BASE + SMBXMITADD);
/* set the command/address... */
- my_outb(address & 0xFF, smbus_io_base + SMBHSTCMD);
+ outb(address & 0xFF, SMBUS_IO_BASE + SMBHSTCMD);
/* set up for a byte data read */
- my_outb((my_inb(smbus_io_base + SMBHSTCTL) & 0xE3) | (0x2 << 2),
- smbus_io_base + SMBHSTCTL);
+ outb((inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xE3) | (0x2 << 2),
+ SMBUS_IO_BASE + SMBHSTCTL);
/* clear any lingering errors, so the transaction will run */
- my_outb(my_inb(smbus_io_base + SMBHSTSTAT), smbus_io_base + SMBHSTSTAT);
+ outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
/* clear the data byte...*/
- my_outb(0, smbus_io_base + SMBHSTDAT0);
+ outb(0, SMBUS_IO_BASE + SMBHSTDAT0);
/* start the command */
- my_outb((my_inb(smbus_io_base + SMBHSTCTL) | 0x40),
- smbus_io_base + SMBHSTCTL);
+ outb((inb(SMBUS_IO_BASE + SMBHSTCTL) | 0x40),
+ SMBUS_IO_BASE + SMBHSTCTL);
/* poll for transaction completion */
smbus_wait_until_done();
- host_status_register = my_inb(smbus_io_base + SMBHSTSTAT);
+ host_status_register = inb(SMBUS_IO_BASE + SMBHSTSTAT);
/* Ignore the In Use Status... */
host_status_register &= ~(1 << 6);
/* read results of transaction */
- byte = my_inb(smbus_io_base + SMBHSTDAT0);
+ byte = inb(SMBUS_IO_BASE + SMBHSTDAT0);
smbus_print_error(byte);
*result = byte;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 15:27:32 +0000