diff options
Diffstat (limited to 'board/sc520_cdp/sc520_cdp.c')
| -rw-r--r-- | board/sc520_cdp/sc520_cdp.c | 122 |
1 files changed, 61 insertions, 61 deletions
diff --git a/board/sc520_cdp/sc520_cdp.c b/board/sc520_cdp/sc520_cdp.c index ba6255f..2809ff7 100644 --- a/board/sc520_cdp/sc520_cdp.c +++ b/board/sc520_cdp/sc520_cdp.c @@ -31,35 +31,35 @@ static void irq_init(void) { - + /* disable global interrupt mode */ - write_mmcr_byte(SC520_PICICR, 0x40); - + write_mmcr_byte(SC520_PICICR, 0x40); + /* set irq0-7 to edge */ write_mmcr_byte(SC520_MPICMODE, 0x00); - + /* set irq9-12 to level, all the other (8, 13-15) are edge */ write_mmcr_byte(SC520_SL1PICMODE, 0x1e); - + /* set irq16-24 (unused slave pic2) to level */ write_mmcr_byte(SC520_SL2PICMODE, 0xff); - - /* active low polarity on PIC interrupt pins, + + /* active low polarity on PIC interrupt pins, active high polarity on all other irq pins */ write_mmcr_word(SC520_INTPINPOL, 0); /* set irq number mapping */ - write_mmcr_byte(SC520_GPTMR0MAP,0); /* disable GP timer 0 INT */ + write_mmcr_byte(SC520_GPTMR0MAP,0); /* disable GP timer 0 INT */ write_mmcr_byte(SC520_GPTMR1MAP,0); /* disable GP timer 1 INT */ write_mmcr_byte(SC520_GPTMR2MAP,0); /* disable GP timer 2 INT */ - write_mmcr_byte(SC520_PIT0MAP,0x1); /* Set PIT timer 0 INT to IRQ0 */ + write_mmcr_byte(SC520_PIT0MAP,0x1); /* Set PIT timer 0 INT to IRQ0 */ write_mmcr_byte(SC520_PIT1MAP,0); /* diable PIT timer 1 INT */ write_mmcr_byte(SC520_PIT2MAP,0); /* diable PIT timer 2 INT */ write_mmcr_byte(SC520_PCIINTAMAP,0x4); /* Set PCI INT A to IRQ9 */ write_mmcr_byte(SC520_PCIINTBMAP,0x5); /* Set PCI INT B to IRQ10 */ write_mmcr_byte(SC520_PCIINTCMAP,0x6); /* Set PCI INT C to IRQ11 */ write_mmcr_byte(SC520_PCIINTDMAP,0x7); /* Set PCI INT D to IRQ12 */ - write_mmcr_byte(SC520_DMABCINTMAP,0); /* disable DMA INT */ + write_mmcr_byte(SC520_DMABCINTMAP,0); /* disable DMA INT */ write_mmcr_byte(SC520_SSIMAP,0); /* disable Synchronius serial INT */ write_mmcr_byte(SC520_WDTMAP,0); /* disable Watchdor INT */ write_mmcr_byte(SC520_RTCMAP,0x3); /* Set RTC int to 8 */ @@ -69,28 +69,28 @@ static void irq_init(void) write_mmcr_byte(SC520_GP0IMAP,6); /* Set GPIRQ0 (ISA IRQ2) to IRQ9 */ write_mmcr_byte(SC520_GP1IMAP,2); /* Set GPIRQ1 (SIO IRQ1) to IRQ1 */ write_mmcr_byte(SC520_GP2IMAP,7); /* Set GPIRQ2 (ISA IRQ12) to IRQ12 */ - + if (CFG_USE_SIO_UART) { write_mmcr_byte(SC520_UART1MAP,0); /* disable internal UART1 INT */ write_mmcr_byte(SC520_UART2MAP,0); /* disable internal UART2 INT */ - write_mmcr_byte(SC520_GP3IMAP,11); /* Set GPIRQ3 (ISA IRQ3) to IRQ3 */ + write_mmcr_byte(SC520_GP3IMAP,11); /* Set GPIRQ3 (ISA IRQ3) to IRQ3 */ write_mmcr_byte(SC520_GP4IMAP,12); /* Set GPIRQ4 (ISA IRQ4) to IRQ4 */ } else { write_mmcr_byte(SC520_UART1MAP,12); /* Set internal UART2 INT to IRQ4 */ write_mmcr_byte(SC520_UART2MAP,11); /* Set internal UART2 INT to IRQ3 */ - write_mmcr_byte(SC520_GP3IMAP,0); /* disable GPIRQ3 (ISA IRQ3) */ + write_mmcr_byte(SC520_GP3IMAP,0); /* disable GPIRQ3 (ISA IRQ3) */ write_mmcr_byte(SC520_GP4IMAP,0); /* disable GPIRQ4 (ISA IRQ4) */ } - + write_mmcr_byte(SC520_GP5IMAP,13); /* Set GPIRQ5 (ISA IRQ5) to IRQ5 */ write_mmcr_byte(SC520_GP6IMAP,21); /* Set GPIRQ6 (ISA IRQ6) to IRQ6 */ write_mmcr_byte(SC520_GP7IMAP,22); /* Set GPIRQ7 (ISA IRQ7) to IRQ7 */ write_mmcr_byte(SC520_GP8IMAP,3); /* Set GPIRQ8 (SIO IRQ8) to IRQ8 */ write_mmcr_byte(SC520_GP9IMAP,4); /* Set GPIRQ9 (ISA IRQ9) to IRQ9 */ - write_mmcr_byte(SC520_GP10IMAP,9); /* Set GPIRQ10 (ISA IRQ10) to IRQ10 */ + write_mmcr_byte(SC520_GP10IMAP,9); /* Set GPIRQ10 (ISA IRQ10) to IRQ10 */ write_mmcr_word(SC520_PCIHOSTMAP,0x11f); /* Map PCI hostbridge INT to NMI */ write_mmcr_word(SC520_ECCMAP,0x100); /* Map SDRAM ECC failure INT to NMI */ - + } /* PCI stuff */ @@ -98,11 +98,11 @@ static void pci_sc520_cdp_fixup_irq(struct pci_controller *hose, pci_dev_t dev) { char pin; int irq; - - + + pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin); irq = pin-1; - + switch (PCI_DEV(dev)) { case 20: break; @@ -115,20 +115,20 @@ static void pci_sc520_cdp_fixup_irq(struct pci_controller *hose, pci_dev_t dev) case 17: irq+=3; break; - default: + default: return; } - + irq&=3; /* wrap around */ irq+=9; /* lowest IRQ is 9 */ - + pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, irq); -#if 0 - printf("fixup_irq: device %d pin %c irq %d\n", +#if 0 + printf("fixup_irq: device %d pin %c irq %d\n", PCI_DEV(dev), 'A' + pin -1, irq); #endif } - + static struct pci_controller sc520_cdp_hose = { fixup_irq: pci_sc520_cdp_fixup_irq, }; @@ -147,7 +147,7 @@ static void silence_uart(int port) void setup_ali_sio(int uart_primary) { ali512x_init(); - + ali512x_set_fdc(ALI_ENABLED, 0x3f2, 6, 0); ali512x_set_pp(ALI_ENABLED, 0x278, 7, 3); ali512x_set_uart(ALI_ENABLED, ALI_UART1, uart_primary?0x3f8:0x3e8, 4); @@ -155,21 +155,21 @@ void setup_ali_sio(int uart_primary) ali512x_set_rtc(ALI_DISABLED, 0, 0); ali512x_set_kbc(ALI_ENABLED, 1, 12); ali512x_set_cio(ALI_ENABLED); - + /* IrDa pins */ ali512x_cio_function(12, 1, 0, 0); ali512x_cio_function(13, 1, 0, 0); - + /* SSI chip select pins */ ali512x_cio_function(14, 0, 0, 0); /* SSI_CS */ - ali512x_cio_function(15, 0, 0, 0); /* SSI_MV */ + ali512x_cio_function(15, 0, 0, 0); /* SSI_MV */ ali512x_cio_function(16, 0, 1, 0); /* SSI_SPI# (inverted) */ /* Board REV pins */ ali512x_cio_function(20, 0, 0, 1); ali512x_cio_function(21, 0, 0, 1); ali512x_cio_function(22, 0, 0, 1); - ali512x_cio_function(23, 0, 0, 1); + ali512x_cio_function(23, 0, 0, 1); } @@ -178,13 +178,13 @@ static void bus_init(void) { /* set up the GP IO pins */ - write_mmcr_word(SC520_PIOPFS31_16, 0xf7ff); /* set the GPIO pin function 31-16 reg */ + write_mmcr_word(SC520_PIOPFS31_16, 0xf7ff); /* set the GPIO pin function 31-16 reg */ write_mmcr_word(SC520_PIOPFS15_0, 0xffff); /* set the GPIO pin function 15-0 reg */ - write_mmcr_byte(SC520_CSPFS, 0xf8); /* set the CS pin function reg */ + write_mmcr_byte(SC520_CSPFS, 0xf8); /* set the CS pin function reg */ write_mmcr_byte(SC520_CLKSEL, 0x70); - - write_mmcr_byte(SC520_GPCSRT, 1); /* set the GP CS offset */ + + write_mmcr_byte(SC520_GPCSRT, 1); /* set the GP CS offset */ write_mmcr_byte(SC520_GPCSPW, 3); /* set the GP CS pulse width */ write_mmcr_byte(SC520_GPCSOFF, 1); /* set the GP CS offset */ write_mmcr_byte(SC520_GPRDW, 3); /* set the RD pulse width */ @@ -192,40 +192,40 @@ static void bus_init(void) write_mmcr_byte(SC520_GPWRW, 3); /* set the GP WR pulse width */ write_mmcr_byte(SC520_GPWROFF, 1); /* set the GP WR offset */ - write_mmcr_word(SC520_BOOTCSCTL, 0x1823); /* set up timing of BOOTCS */ + write_mmcr_word(SC520_BOOTCSCTL, 0x1823); /* set up timing of BOOTCS */ write_mmcr_word(SC520_ROMCS1CTL, 0x1823); /* set up timing of ROMCS1 */ - write_mmcr_word(SC520_ROMCS2CTL, 0x1823); /* set up timing of ROMCS2 */ - + write_mmcr_word(SC520_ROMCS2CTL, 0x1823); /* set up timing of ROMCS2 */ + /* adjust the memory map: * by default the first 256MB (0x00000000 - 0x0fffffff) is mapped to SDRAM * and 256MB to 1G-128k (0x1000000 - 0x37ffffff) is mapped to PCI mmio - * we need to map 1G-128k - 1G (0x38000000 - 0x3fffffff) to CS1 */ - - + * we need to map 1G-128k - 1G (0x38000000 - 0x3fffffff) to CS1 */ + + /* SRAM = GPCS3 128k @ d0000-effff*/ - write_mmcr_long(SC520_PAR2, 0x4e00400d); - + write_mmcr_long(SC520_PAR2, 0x4e00400d); + /* IDE0 = GPCS6 1f0-1f7 */ - write_mmcr_long(SC520_PAR3, 0x380801f0); + write_mmcr_long(SC520_PAR3, 0x380801f0); /* IDE1 = GPCS7 3f6 */ - write_mmcr_long(SC520_PAR4, 0x3c0003f6); + write_mmcr_long(SC520_PAR4, 0x3c0003f6); /* bootcs */ - write_mmcr_long(SC520_PAR12, 0x8bffe800); + write_mmcr_long(SC520_PAR12, 0x8bffe800); /* romcs2 */ - write_mmcr_long(SC520_PAR13, 0xcbfff000); + write_mmcr_long(SC520_PAR13, 0xcbfff000); /* romcs1 */ - write_mmcr_long(SC520_PAR14, 0xabfff800); + write_mmcr_long(SC520_PAR14, 0xabfff800); /* 680 LEDS */ - write_mmcr_long(SC520_PAR15, 0x30000640); - - asm ("wbinvd\n"); /* Flush cache, req. after setting the unchached attribute ona PAR */ + write_mmcr_long(SC520_PAR15, 0x30000640); + + asm ("wbinvd\n"); /* Flush cache, req. after setting the unchached attribute ona PAR */ if (CFG_USE_SIO_UART) { - write_mmcr_byte(SC520_ADDDECCTL, read_mmcr_byte(SC520_ADDDECCTL) | UART2_DIS|UART1_DIS); + write_mmcr_byte(SC520_ADDDECCTL, read_mmcr_byte(SC520_ADDDECCTL) | UART2_DIS|UART1_DIS); setup_ali_sio(1); } else { - write_mmcr_byte(SC520_ADDDECCTL, read_mmcr_byte(SC520_ADDDECCTL) & ~(UART2_DIS|UART1_DIS)); + write_mmcr_byte(SC520_ADDDECCTL, read_mmcr_byte(SC520_ADDDECCTL) & ~(UART2_DIS|UART1_DIS)); setup_ali_sio(0); silence_uart(0x3e8); silence_uart(0x2e8); @@ -242,21 +242,21 @@ static void bus_init(void) int board_init(void) { DECLARE_GLOBAL_DATA_PTR; - - init_sc520(); + + init_sc520(); bus_init(); irq_init(); - + /* max drive current on SDRAM */ write_mmcr_word(SC520_DSCTL, 0x0100); - + /* enter debug mode after next reset (only if jumper is also set) */ write_mmcr_byte(SC520_RESCFG, 0x08); - + /* configure the software timer to 33.333MHz */ write_mmcr_byte(SC520_SWTMRCFG, 0); gd->bus_clk = 33333000; - + return 0; } @@ -277,14 +277,14 @@ int last_stage_init(void) { int minor; int major; - + major = minor = 0; major |= ali512x_cio_in(23)?2:0; major |= ali512x_cio_in(22)?1:0; minor |= ali512x_cio_in(21)?2:0; minor |= ali512x_cio_in(20)?1:0; - + printf("AMD SC520 CDP revision %d.%d\n", major, minor); - + return 0; } |