#include <console/console.h>
-#include <arch/io.h>
#include <pc80/mc146818rtc.h>
-#include <boot/linuxbios_tables.h>
+#include <boot/coreboot_tables.h>
#include <string.h>
-#define CMOS_READ(addr) ({ \
-outb((addr),RTC_PORT(0)); \
-inb(RTC_PORT(1)); \
-})
-
-#define CMOS_WRITE(val, addr) ({ \
-outb((addr),RTC_PORT(0)); \
-outb((val),RTC_PORT(1)); \
-})
-
/* control registers - Moto names
*/
#define RTC_REG_A 10
# define RTC_VRT 0x80 /* valid RAM and time */
/**********************************************************************/
-
-
+#if CONFIG_USE_OPTION_TABLE
static int rtc_checksum_valid(int range_start, int range_end, int cks_loc)
{
int i;
unsigned sum, old_sum;
sum = 0;
for(i = range_start; i <= range_end; i++) {
- sum += CMOS_READ(i);
+ sum += cmos_read(i);
}
sum = (~sum)&0x0ffff;
- old_sum = ((CMOS_READ(cks_loc)<<8) | CMOS_READ(cks_loc+1))&0x0ffff;
+ old_sum = ((cmos_read(cks_loc)<<8) | cmos_read(cks_loc+1))&0x0ffff;
return sum == old_sum;
}
unsigned sum;
sum = 0;
for(i = range_start; i <= range_end; i++) {
- sum += CMOS_READ(i);
+ sum += cmos_read(i);
}
sum = ~(sum & 0x0ffff);
- CMOS_WRITE(((sum >> 8) & 0x0ff), cks_loc);
- CMOS_WRITE(((sum >> 0) & 0x0ff), cks_loc+1);
+ cmos_write(((sum >> 8) & 0x0ff), cks_loc);
+ cmos_write(((sum >> 0) & 0x0ff), cks_loc+1);
}
+#endif
+#if CONFIG_ARCH_X86
#define RTC_CONTROL_DEFAULT (RTC_24H)
#define RTC_FREQ_SELECT_DEFAULT (RTC_REF_CLCK_32KHZ | RTC_RATE_1024HZ)
-
-#if 0 /* alpha setup */
-#undef RTC_CONTROL_DEFAULT
-#undef RTC_FREQ_SELECT_DEFAULT
+#else
+#if CONFIG_ARCH_ALPHA
#define RTC_CONTROL_DEFAULT (RTC_SQWE | RTC_24H)
#define RTC_FREQ_SELECT_DEFAULT (RTC_REF_CLCK_32KHZ | RTC_RATE_1024HZ)
#endif
+#endif
void rtc_init(int invalid)
{
+#if CONFIG_USE_OPTION_TABLE
unsigned char x;
int cmos_invalid, checksum_invalid;
+#endif
+
+ printk(BIOS_DEBUG, "RTC Init\n");
- printk_debug("RTC Init\n");
+#if CONFIG_USE_OPTION_TABLE
/* See if there has been a CMOS power problem. */
- x = CMOS_READ(RTC_VALID);
+ x = cmos_read(RTC_VALID);
cmos_invalid = !(x & RTC_VRT);
/* See if there is a CMOS checksum error */
PC_CKS_RANGE_END,PC_CKS_LOC);
if (invalid || cmos_invalid || checksum_invalid) {
- printk_warning("RTC:%s%s%s zeroing cmos\n",
- invalid?" Clear requested":"",
+ printk(BIOS_WARNING, "RTC:%s%s%s zeroing cmos\n",
+ invalid?" Clear requested":"",
cmos_invalid?" Power Problem":"",
checksum_invalid?" Checksum invalid":"");
#if 0
- CMOS_WRITE(0, 0x01);
- CMOS_WRITE(0, 0x03);
- CMOS_WRITE(0, 0x05);
+ cmos_write(0, 0x01);
+ cmos_write(0, 0x03);
+ cmos_write(0, 0x05);
for(i = 10; i < 48; i++) {
- CMOS_WRITE(0, i);
+ cmos_write(0, i);
}
-
+
if (cmos_invalid) {
/* Now setup a default date of Sat 1 January 2000 */
- CMOS_WRITE(0, 0x00); /* seconds */
- CMOS_WRITE(0, 0x02); /* minutes */
- CMOS_WRITE(1, 0x04); /* hours */
- CMOS_WRITE(7, 0x06); /* day of week */
- CMOS_WRITE(1, 0x07); /* day of month */
- CMOS_WRITE(1, 0x08); /* month */
- CMOS_WRITE(0, 0x09); /* year */
+ cmos_write(0, 0x00); /* seconds */
+ cmos_write(0, 0x02); /* minutes */
+ cmos_write(1, 0x04); /* hours */
+ cmos_write(7, 0x06); /* day of week */
+ cmos_write(1, 0x07); /* day of month */
+ cmos_write(1, 0x08); /* month */
+ cmos_write(0, 0x09); /* year */
}
#endif
}
+#endif
+
+ /* Setup the real time clock */
+ cmos_write(RTC_CONTROL_DEFAULT, RTC_CONTROL);
+ /* Setup the frequency it operates at */
+ cmos_write(RTC_FREQ_SELECT_DEFAULT, RTC_FREQ_SELECT);
+
+#if CONFIG_USE_OPTION_TABLE
/* See if there is a LB CMOS checksum error */
checksum_invalid = !rtc_checksum_valid(LB_CKS_RANGE_START,
LB_CKS_RANGE_END,LB_CKS_LOC);
if(checksum_invalid)
- printk_debug("Invalid CMOS LB checksum\n");
+ printk(BIOS_DEBUG, "Invalid CMOS LB checksum\n");
- /* Setup the real time clock */
- CMOS_WRITE(RTC_CONTROL_DEFAULT, RTC_CONTROL);
- /* Setup the frequency it operates at */
- CMOS_WRITE(RTC_FREQ_SELECT_DEFAULT, RTC_FREQ_SELECT);
/* Make certain we have a valid checksum */
rtc_set_checksum(PC_CKS_RANGE_START,
PC_CKS_RANGE_END,PC_CKS_LOC);
+#endif
+
/* Clear any pending interrupts */
- (void) CMOS_READ(RTC_INTR_FLAGS);
+ (void) cmos_read(RTC_INTR_FLAGS);
}
-#if USE_OPTION_TABLE == 1
+#if CONFIG_USE_OPTION_TABLE
/* This routine returns the value of the requested bits
input bit = bit count from the beginning of the cmos image
length = number of bits to include in the value
unsigned long i;
unsigned char uchar;
- /* The table is checked when it is built to ensure all
+ /* The table is checked when it is built to ensure all
values are valid. */
ret = vret;
byte=bit/8; /* find the byte where the data starts */
byte_bit=bit%8; /* find the bit in the byte where the data starts */
if(length<9) { /* one byte or less */
- uchar = CMOS_READ(byte); /* load the byte */
+ uchar = cmos_read(byte); /* load the byte */
uchar >>= byte_bit; /* shift the bits to byte align */
/* clear unspecified bits */
ret[0] = uchar & ((1 << length) -1);
else { /* more that one byte so transfer the whole bytes */
for(i=0;length;i++,length-=8,byte++) {
/* load the byte */
- ret[i]=CMOS_READ(byte);
+ ret[i]=cmos_read(byte);
}
}
return 0;
}
-int get_option(void *dest, char *name)
+int get_option(void *dest, const char *name)
{
extern struct cmos_option_table option_table;
struct cmos_option_table *ct;
/* Figure out how long name is */
namelen = strnlen(name, CMOS_MAX_NAME_LENGTH);
-
+
/* find the requested entry record */
ct=&option_table;
ce=(struct cmos_entries*)((unsigned char *)ct + ct->header_length);
}
}
if(!found) {
- printk_err("ERROR: No cmos option '%s'\n", name);
+ printk(BIOS_DEBUG, "WARNING: No CMOS option '%s'.\n", name);
return(-2);
}
-
+
if(get_cmos_value(ce->bit, ce->length, dest))
return(-3);
if(!rtc_checksum_valid(LB_CKS_RANGE_START,
return(-4);
return(0);
}
-#endif /* USE_OPTION_TABLE */
+#endif /* CONFIG_USE_OPTION_TABLE */
projects / coreboot.git / blobdiff