*
* 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
+ * 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
*/
#include <common.h>
+#include <div64.h>
+
+DECLARE_GLOBAL_DATA_PTR;
void flash__init (void);
void ether__init (void);
int board_init (void)
{
- DECLARE_GLOBAL_DATA_PTR;
-
/* arch number of Integrator Board */
gd->bd->bi_arch_number = MACH_TYPE_CINTEGRATOR;
******************************/
int dram_init (void)
{
- DECLARE_GLOBAL_DATA_PTR;
-
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
- gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
#ifdef CONFIG_CM_SPD_DETECT
- {
+ {
extern void dram_query(void);
unsigned long cm_reg_sdram;
unsigned long sdram_shift;
dram_query(); /* Assembler accesses to CM registers */
- /* Queries the SPD values */
+ /* Queries the SPD values */
/* Obtain the SDRAM size from the CM SDRAM register */
cm_reg_sdram = *(volatile ulong *)(CM_BASE + OS_SDRAM);
- /* Register SDRAM size
- *
- * 0xXXXXXXbbb000bb 16 MB
- * 0xXXXXXXbbb001bb 32 MB
- * 0xXXXXXXbbb010bb 64 MB
- * 0xXXXXXXbbb011bb 128 MB
- * 0xXXXXXXbbb100bb 256 MB
- *
+ /* Register SDRAM size
+ *
+ * 0xXXXXXXbbb000bb 16 MB
+ * 0xXXXXXXbbb001bb 32 MB
+ * 0xXXXXXXbbb010bb 64 MB
+ * 0xXXXXXXbbb011bb 128 MB
+ * 0xXXXXXXbbb100bb 256 MB
+ *
*/
- sdram_shift = ((cm_reg_sdram & 0x0000001C)/4)%4;
- gd->bd->bi_dram[0].size = 0x01000000 << sdram_shift;
+ sdram_shift = ((cm_reg_sdram & 0x0000001C)/4)%4;
+ gd->bd->bi_dram[0].size = 0x01000000 << sdram_shift;
- }
+ }
#endif /* CM_SPD_DETECT */
return 0;
* can be divided by 16 or 256
* and can be set up as a 32-bit timer
*/
-/* U-Boot expects a 32 bit timer, running at CFG_HZ */
+/* U-Boot expects a 32 bit timer, running at CONFIG_SYS_HZ */
/* Keep total timer count to avoid losing decrements < div_timer */
static unsigned long long total_count = 0;
-static unsigned long long lastdec; /* Timer reading at last call */
+static unsigned long long lastdec; /* Timer reading at last call */
static unsigned long long div_clock = 1; /* Divisor applied to timer clock */
static unsigned long long div_timer = 1; /* Divisor to convert timer reading
* change to U-Boot ticks
*/
-/* CFG_HZ = CFG_HZ_CLOCK/(div_clock * div_timer) */
-static ulong timestamp; /* U-Boot ticks since startup */
+/* CONFIG_SYS_HZ = CONFIG_SYS_HZ_CLOCK/(div_clock * div_timer) */
+static ulong timestamp; /* U-Boot ticks since startup */
#define TIMER_LOAD_VAL ((ulong)0xFFFFFFFF)
-#define READ_TIMER (*(volatile ulong *)(CFG_TIMERBASE+4))
+#define READ_TIMER (*(volatile ulong *)(CONFIG_SYS_TIMERBASE+4))
-/* all function return values in U-Boot ticks i.e. (1/CFG_HZ) sec
+/* all function return values in U-Boot ticks i.e. (1/CONFIG_SYS_HZ) sec
* - unless otherwise stated
*/
int interrupt_init (void)
{
/* Load timer with initial value */
- *(volatile ulong *)(CFG_TIMERBASE + 0) = TIMER_LOAD_VAL;
+ *(volatile ulong *)(CONFIG_SYS_TIMERBASE + 0) = TIMER_LOAD_VAL;
/* Set timer to be
- * enabled 1
- * periodic 1
- * no interrupts 0
- * X 0
- * divider 1 00 == less rounding error
- * 32 bit 1
- * wrapping 0
+ * enabled 1
+ * periodic 1
+ * no interrupts 0
+ * X 0
+ * divider 1 00 == less rounding error
+ * 32 bit 1
+ * wrapping 0
*/
- *(volatile ulong *)(CFG_TIMERBASE + 8) = 0x000000C2;
+ *(volatile ulong *)(CONFIG_SYS_TIMERBASE + 8) = 0x000000C2;
/* init the timestamp */
total_count = 0ULL;
reset_timer_masked();
- div_timer = (unsigned long long)(CFG_HZ_CLOCK / CFG_HZ);
+ div_timer = (unsigned long long)(CONFIG_SYS_HZ_CLOCK / CONFIG_SYS_HZ);
div_timer /= div_clock;
return (0);
ulong tmo, tmp;
/* Convert to U-Boot ticks */
- tmo = usec * CFG_HZ;
+ tmo = usec * CONFIG_SYS_HZ;
tmo /= (1000000L);
tmp = get_timer_masked(); /* get current timestamp */
tmo += tmp; /* form target timestamp */
- while (get_timer_masked () < tmo)/* loop till event */
- {
+ while (get_timer_masked () < tmo) {/* loop till event */
/*NOP*/;
}
}
void reset_timer_masked (void)
{
/* capure current decrementer value */
- lastdec = (unsigned long long)READ_TIMER;
+ lastdec = (unsigned long long)READ_TIMER;
/* start "advancing" time stamp from 0 */
- timestamp = 0L;
+ timestamp = 0L;
}
-/* converts the timer reading to U-Boot ticks */
+/* converts the timer reading to U-Boot ticks */
/* the timestamp is the number of ticks since reset */
ulong get_timer_masked (void)
{
/* get current count */
unsigned long long now = (unsigned long long)READ_TIMER;
- if(now > lastdec)
- {
+ if(now > lastdec) {
/* Must have wrapped */
- total_count += lastdec + TIMER_LOAD_VAL + 1 - now;
+ total_count += lastdec + TIMER_LOAD_VAL + 1 - now;
} else {
total_count += lastdec - now;
}
- lastdec = now;
- timestamp = (ulong)(total_count/div_timer);
+ lastdec = now;
+
+ /* Reuse "now" */
+ now = total_count;
+ do_div(now, div_timer);
+ timestamp = now;
return timestamp;
}
*/
ulong get_tbclk (void)
{
- return (ulong)(((unsigned long long)CFG_HZ_CLOCK)/div_clock);
+ return (ulong)(((unsigned long long)CONFIG_SYS_HZ_CLOCK)/div_clock);
}
projects / karo-tx-uboot.git / blobdiff