diff options
Diffstat (limited to 'board/integratorcp/integratorcp.c')
| -rw-r--r-- | board/integratorcp/integratorcp.c | 64 |
1 files changed, 31 insertions, 33 deletions
diff --git a/board/integratorcp/integratorcp.c b/board/integratorcp/integratorcp.c index db833f0..216876b 100644 --- a/board/integratorcp/integratorcp.c +++ b/board/integratorcp/integratorcp.c @@ -24,7 +24,7 @@ * * 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 @@ -108,33 +108,33 @@ 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; @@ -147,13 +147,13 @@ extern void dram_query(void); /* U-Boot expects a 32 bit timer, running at CFG_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 */ +static ulong timestamp; /* U-Boot ticks since startup */ #define TIMER_LOAD_VAL ((ulong)0xFFFFFFFF) #define READ_TIMER (*(volatile ulong *)(CFG_TIMERBASE+4)) @@ -169,13 +169,13 @@ int interrupt_init (void) /* Load timer with initial value */ *(volatile ulong *)(CFG_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; /* init the timestamp */ @@ -219,8 +219,7 @@ void udelay (unsigned long usec) 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*/; } } @@ -228,26 +227,25 @@ void udelay (unsigned long usec) 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; + lastdec = now; timestamp = (ulong)(total_count/div_timer); return timestamp; |