diff options
Diffstat (limited to 'board/genietv/genietv.c')
| -rw-r--r-- | board/genietv/genietv.c | 323 |
1 files changed, 154 insertions, 169 deletions
diff --git a/board/genietv/genietv.c b/board/genietv/genietv.c index 3bfb25e..c19841a 100644 --- a/board/genietv/genietv.c +++ b/board/genietv/genietv.c @@ -39,13 +39,12 @@ static long int dram_size (long int, long int *, long int); #define _NOT_USED_ 0xFFFFFFFF -const uint sdram_table[] = -{ +const uint sdram_table[] = { /* * Single Read. (Offset 0 in UPMB RAM) */ 0x1F0DFC04, 0xEEAFBC04, 0x11AF7C04, 0xEFBEEC00, - 0x1FFDDC47, /* last */ + 0x1FFDDC47, /* last */ /* * SDRAM Initialization (offset 5 in UPMB RAM) * @@ -54,39 +53,39 @@ const uint sdram_table[] = * sequence, which is executed by a RUN command. * */ - 0x1FFDDC34, 0xEFEEAC34, 0x1FBD5C35, /* last */ + 0x1FFDDC34, 0xEFEEAC34, 0x1FBD5C35, /* last */ /* * Burst Read. (Offset 8 in UPMB RAM) */ 0x1F0DFC04, 0xEEAFBC04, 0x10AF7C04, 0xF0AFFC00, - 0xF0AFFC00, 0xF1AFFC00, 0xEFBEEC00, 0x1FFDDC47, /* last */ + 0xF0AFFC00, 0xF1AFFC00, 0xEFBEEC00, 0x1FFDDC47, /* last */ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, /* * Single Write. (Offset 18 in UPMB RAM) */ - 0x1F2DFC04, 0xEEAFAC00, 0x01BE4C04, 0x1FFDDC47, /* last */ + 0x1F2DFC04, 0xEEAFAC00, 0x01BE4C04, 0x1FFDDC47, /* last */ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, /* * Burst Write. (Offset 20 in UPMB RAM) */ 0x1F0DFC04, 0xEEAFAC00, 0x10AF5C00, 0xF0AFFC00, - 0xF0AFFC00, 0xE1BEEC04, 0x1FFDDC47, /* last */ - _NOT_USED_, + 0xF0AFFC00, 0xE1BEEC04, 0x1FFDDC47, /* last */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, /* * Refresh (Offset 30 in UPMB RAM) */ 0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04, - 0xFFFFFC84, 0xFFFFFC07, /* last */ - _NOT_USED_, _NOT_USED_, + 0xFFFFFC84, 0xFFFFFC07, /* last */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, /* * Exception. (Offset 3c in UPMB RAM) */ - 0x7FFFFC07, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, + 0x7FFFFC07, /* last */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, }; /* ------------------------------------------------------------------------- */ @@ -98,19 +97,22 @@ const uint sdram_table[] = int checkboard (void) { - puts ("Board: GenieTV\n"); - return 0; + puts ("Board: GenieTV\n"); + return 0; } #if 0 -static void PrintState(void) +static void PrintState (void) { - volatile immap_t *im = (immap_t *)CFG_IMMR; - volatile memctl8xx_t *memctl = &im->im_memctl; - - printf("\n0 - FLASH: B=%08x O=%08x", memctl->memc_br0, memctl->memc_or0); - printf("\n1 - SDRAM: B=%08x O=%08x", memctl->memc_br1, memctl->memc_or1); - printf("\n2 - SDRAM: B=%08x O=%08x", memctl->memc_br2, memctl->memc_or2); + volatile immap_t *im = (immap_t *) CFG_IMMR; + volatile memctl8xx_t *memctl = &im->im_memctl; + + printf ("\n0 - FLASH: B=%08x O=%08x", memctl->memc_br0, + memctl->memc_or0); + printf ("\n1 - SDRAM: B=%08x O=%08x", memctl->memc_br1, + memctl->memc_or1); + printf ("\n2 - SDRAM: B=%08x O=%08x", memctl->memc_br2, + memctl->memc_or2); } #endif @@ -118,119 +120,123 @@ static void PrintState(void) long int initdram (int board_type) { - volatile immap_t *im = (immap_t *)CFG_IMMR; - volatile memctl8xx_t *memctl = &im->im_memctl; - long int size_b0, size_b1, size8; + volatile immap_t *im = (immap_t *) CFG_IMMR; + volatile memctl8xx_t *memctl = &im->im_memctl; + long int size_b0, size_b1, size8; - /* Enable SDRAM */ + /* Enable SDRAM */ - /* Configuring PA7 for general purpouse output pin */ - im->im_ioport.iop_papar &= ~CFG_PA7 ; /* 0 = general purpouse */ - im->im_ioport.iop_padir |= CFG_PA7 ; /* 1 = output */ + /* Configuring PA7 for general purpouse output pin */ + im->im_ioport.iop_papar &= ~CFG_PA7; /* 0 = general purpouse */ + im->im_ioport.iop_padir |= CFG_PA7; /* 1 = output */ - /* Enable SDRAM - PA7 = 1 */ - im->im_ioport.iop_padat |= CFG_PA7 ; /* value of PA7 */ + /* Enable SDRAM - PA7 = 1 */ + im->im_ioport.iop_padat |= CFG_PA7; /* value of PA7 */ - /* - * Preliminary prescaler for refresh (depends on number of - * banks): This value is selected for four cycles every 62.4 us - * with two SDRAM banks or four cycles every 31.2 us with one - * bank. It will be adjusted after memory sizing. - */ - memctl->memc_mptpr = CFG_MPTPR_2BK_4K ; + /* + * Preliminary prescaler for refresh (depends on number of + * banks): This value is selected for four cycles every 62.4 us + * with two SDRAM banks or four cycles every 31.2 us with one + * bank. It will be adjusted after memory sizing. + */ + memctl->memc_mptpr = CFG_MPTPR_2BK_4K; - memctl->memc_mbmr = CFG_MBMR_8COL; + memctl->memc_mbmr = CFG_MBMR_8COL; - upmconfig(UPMB, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint)); + upmconfig (UPMB, (uint *) sdram_table, + sizeof (sdram_table) / sizeof (uint)); - /* - * Map controller banks 1 and 2 to the SDRAM banks 1 and 2 at - * preliminary addresses - these have to be modified after the - * SDRAM size has been determined. - */ + /* + * Map controller banks 1 and 2 to the SDRAM banks 1 and 2 at + * preliminary addresses - these have to be modified after the + * SDRAM size has been determined. + */ - memctl->memc_or1 = 0xF0000000 | CFG_OR_TIMING_SDRAM; - memctl->memc_br1 = ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMB | BR_V); + memctl->memc_or1 = 0xF0000000 | CFG_OR_TIMING_SDRAM; + memctl->memc_br1 = + ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMB | BR_V); - memctl->memc_or2 = 0xF0000000 | CFG_OR_TIMING_SDRAM; - memctl->memc_br2 = ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMB | BR_V); + memctl->memc_or2 = 0xF0000000 | CFG_OR_TIMING_SDRAM; + memctl->memc_br2 = + ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMB | BR_V); - /* perform SDRAM initialization sequence */ - memctl->memc_mar = 0x00000088; + /* perform SDRAM initialization sequence */ + memctl->memc_mar = 0x00000088; - memctl->memc_mcr = 0x80802105; /* SDRAM bank 0 */ + memctl->memc_mcr = 0x80802105; /* SDRAM bank 0 */ - memctl->memc_mcr = 0x80804105; /* SDRAM bank 1 */ + memctl->memc_mcr = 0x80804105; /* SDRAM bank 1 */ - /* Execute refresh 8 times */ - memctl->memc_mbmr = (CFG_MBMR_8COL & ~MBMR_TLFB_MSK) | MBMR_TLFB_8X ; + /* Execute refresh 8 times */ + memctl->memc_mbmr = (CFG_MBMR_8COL & ~MBMR_TLFB_MSK) | MBMR_TLFB_8X; - memctl->memc_mcr = 0x80802130; /* SDRAM bank 0 - execute twice */ + memctl->memc_mcr = 0x80802130; /* SDRAM bank 0 - execute twice */ - memctl->memc_mcr = 0x80804130; /* SDRAM bank 1 - execute twice */ + memctl->memc_mcr = 0x80804130; /* SDRAM bank 1 - execute twice */ - /* Execute refresh 4 times */ - memctl->memc_mbmr = CFG_MBMR_8COL; + /* Execute refresh 4 times */ + memctl->memc_mbmr = CFG_MBMR_8COL; - /* - * Check Bank 0 Memory Size for re-configuration - * - * try 8 column mode - */ + /* + * Check Bank 0 Memory Size for re-configuration + * + * try 8 column mode + */ #if 0 - PrintState(); + PrintState (); #endif /* printf ("\nChecking bank1..."); */ - size8 = dram_size (CFG_MBMR_8COL, (ulong *)SDRAM_BASE1_PRELIM, SDRAM_MAX_SIZE); + size8 = dram_size (CFG_MBMR_8COL, (ulong *) SDRAM_BASE1_PRELIM, + SDRAM_MAX_SIZE); - size_b0 = size8 ; + size_b0 = size8; /* printf ("\nChecking bank2..."); */ - size_b1 = dram_size (memctl->memc_mbmr, (ulong *)SDRAM_BASE2_PRELIM,SDRAM_MAX_SIZE); + size_b1 = + dram_size (memctl->memc_mbmr, (ulong *) SDRAM_BASE2_PRELIM, + SDRAM_MAX_SIZE); - /* - * Final mapping: map bigger bank first - */ - - memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM; - memctl->memc_br1 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMB | BR_V; - - if (size_b1 > 0) - { - /* - * Position Bank 1 immediately above Bank 0 - */ - memctl->memc_or2 = ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM; - memctl->memc_br2 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMB | BR_V) + - (size_b0 & BR_BA_MSK); - } - else - { /* - * No bank 1 - * - * invalidate bank + * Final mapping: map bigger bank first */ - memctl->memc_br2 = 0; - /* adjust refresh rate depending on SDRAM type, one bank */ - memctl->memc_mptpr = CFG_MPTPR_1BK_4K; - } - - /* If no memory detected, disable SDRAM */ - if ((size_b0 + size_b1) == 0) - { - printf("disabling SDRAM!\n"); - /* Disable SDRAM - PA7 = 1 */ - im->im_ioport.iop_padat &= ~CFG_PA7 ; /* value of PA7 */ - } + + memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM; + memctl->memc_br1 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMB | BR_V; + + if (size_b1 > 0) { + /* + * Position Bank 1 immediately above Bank 0 + */ + memctl->memc_or2 = + ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM; + memctl->memc_br2 = + ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMB | BR_V) + + (size_b0 & BR_BA_MSK); + } else { + /* + * No bank 1 + * + * invalidate bank + */ + memctl->memc_br2 = 0; + /* adjust refresh rate depending on SDRAM type, one bank */ + memctl->memc_mptpr = CFG_MPTPR_1BK_4K; + } + + /* If no memory detected, disable SDRAM */ + if ((size_b0 + size_b1) == 0) { + printf ("disabling SDRAM!\n"); + /* Disable SDRAM - PA7 = 1 */ + im->im_ioport.iop_padat &= ~CFG_PA7; /* value of PA7 */ + } /* else */ /* printf("done! (%08lx)\n", size_b0 + size_b1); */ #if 0 - PrintState(); + PrintState (); #endif - return (size_b0 + size_b1); + return (size_b0 + size_b1); } /* ------------------------------------------------------------------------- */ @@ -243,57 +249,39 @@ long int initdram (int board_type) * - short between data lines */ -static long int dram_size (long int mbmr_value, long int *base, long int maxsize) +static long int dram_size (long int mbmr_value, long int *base, + long int maxsize) { - volatile long int *addr; - long int cnt, val; - - /*memctl->memc_mbmr = mbmr_value; */ + long size; - for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) { - addr = base + cnt; /* pointer arith! */ + /*memctl->memc_mbmr = mbmr_value; */ - *addr = ~cnt; - } + size = get_ram_size (base, maxsize); - /* write 0 to base address */ - addr = base; - *addr = 0; - - /* check at base address */ - if ((val = *addr) != 0) { - printf("(0)"); - return (0); - } - - for (cnt = 1; ; cnt <<= 1) { - addr = base + cnt; /* pointer arith! */ - - val = *addr; - if (val != (~cnt)) { -/* printf("(%08lx)", cnt*sizeof(long)); */ - return (cnt * sizeof(long)); + if (size) { +/* printf("(%08lx)", size); */ + } else { + printf ("(0)"); } - } - /* NOTREACHED */ - return (0); + + return (size); } #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) #ifdef CFG_PCMCIA_MEM_ADDR -volatile unsigned char *pcmcia_mem = (unsigned char*)CFG_PCMCIA_MEM_ADDR; +volatile unsigned char *pcmcia_mem = (unsigned char *) CFG_PCMCIA_MEM_ADDR; #endif -int pcmcia_init(void) +int pcmcia_init (void) { - volatile pcmconf8xx_t *pcmp; + volatile pcmconf8xx_t *pcmp; uint v, slota, slotb; /* - ** Enable the PCMCIA for a Flash card. - */ - pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); + ** Enable the PCMCIA for a Flash card. + */ + pcmp = (pcmconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_pcmcia)); #if 0 pcmp->pcmc_pbr0 = CFG_PCMCIA_MEM_ADDR; @@ -311,12 +299,11 @@ int pcmcia_init(void) #endif /* Check if any PCMCIA card is luged in. */ - slota = (pcmp->pcmc_pipr & 0x18000000) == 0 ; - slotb = (pcmp->pcmc_pipr & 0x00001800) == 0 ; + slota = (pcmp->pcmc_pipr & 0x18000000) == 0; + slotb = (pcmp->pcmc_pipr & 0x00001800) == 0; - if (!(slota || slotb)) - { - printf("No card present\n"); + if (!(slota || slotb)) { + printf ("No card present\n"); #ifdef PCMCIA_SLOT_A pcmp->pcmc_pgcra = 0; #endif @@ -324,52 +311,50 @@ int pcmcia_init(void) pcmp->pcmc_pgcrb = 0; #endif return -1; - } - else - printf("Unknown card ("); + } else + printf ("Unknown card ("); v = 0; - switch( (pcmp->pcmc_pipr >> 14) & 3 ) - { - case 0x00 : - printf("5V"); - v = 5; - break; - case 0x01 : - printf("5V and 3V"); - v = 3; - break; - case 0x03 : - printf("5V, 3V and x.xV"); - v = 3; - break; + switch ((pcmp->pcmc_pipr >> 14) & 3) { + case 0x00: + printf ("5V"); + v = 5; + break; + case 0x01: + printf ("5V and 3V"); + v = 3; + break; + case 0x03: + printf ("5V, 3V and x.xV"); + v = 3; + break; } - switch(v){ + switch (v) { case 3: - printf("; using 3V"); - /* Enable 3 volt Vcc. */ + printf ("; using 3V"); + /* Enable 3 volt Vcc. */ - break; + break; default: - printf("; unknown voltage"); + printf ("; unknown voltage"); return -1; } - printf(")\n"); + printf (")\n"); /* disable pcmcia reset after a while */ - udelay(20); + udelay (20); pcmp->pcmc_pgcrb = 0; /* If you using a real hd you should give a short - * spin-up time. */ + * spin-up time. */ #ifdef CONFIG_DISK_SPINUP_TIME - udelay(CONFIG_DISK_SPINUP_TIME); + udelay (CONFIG_DISK_SPINUP_TIME); #endif return 0; } -#endif /* CFG_CMD_PCMCIA */ +#endif /* CFG_CMD_PCMCIA */ |