X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2FeNET%2FeNET.c;h=546406a4aa14b800067a3991983ce460a6f4d88a;hb=420c7c054bb14b79a4722a6f78fc5ccd202c6df6;hp=6d0b15a0fa26791cdbd7b8910a2ae374aa3d64df;hpb=bb3bcfa2426cc6a0aecec7270e3ee67ca843a125;p=u-boot diff --git a/board/eNET/eNET.c b/board/eNET/eNET.c index 6d0b15a0fa..546406a4aa 100644 --- a/board/eNET/eNET.c +++ b/board/eNET/eNET.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #ifdef CONFIG_HW_WATCHDOG #include @@ -43,78 +45,85 @@ DECLARE_GLOBAL_DATA_PTR; unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN; -void init_sc520_enet (void) -{ - /* Set CPU Speed to 100MHz */ - sc520_mmcr->cpuctl = 0x01; - - /* wait at least one millisecond */ - asm("movl $0x2000,%%ecx\n" - "0: pushl %%ecx\n" - "popl %%ecx\n" - "loop 0b\n": : : "ecx"); - - /* turn on the SDRAM write buffer */ - sc520_mmcr->dbctl = 0x11; - - /* turn on the cache and disable write through */ - asm("movl %%cr0, %%eax\n" - "andl $0x9fffffff, %%eax\n" - "movl %%eax, %%cr0\n" : : : "eax"); -} +static void enet_timer_isr(void); +static void enet_toggle_run_led(void); /* * Miscellaneous platform dependent initializations */ int board_early_init_f(void) { - init_sc520_enet(); - - sc520_mmcr->gpcsrt = 0x01; /* GP Chip Select Recovery Time */ - sc520_mmcr->gpcspw = 0x07; /* GP Chip Select Pulse Width */ - sc520_mmcr->gpcsoff = 0x00; /* GP Chip Select Offset */ - sc520_mmcr->gprdw = 0x05; /* GP Read pulse width */ - sc520_mmcr->gprdoff = 0x01; /* GP Read offset */ - sc520_mmcr->gpwrw = 0x05; /* GP Write pulse width */ - sc520_mmcr->gpwroff = 0x01; /* GP Write offset */ - - sc520_mmcr->piodata15_0 = 0x0630; /* PIO15_PIO0 Data */ - sc520_mmcr->piodata31_16 = 0x2000; /* PIO31_PIO16 Data */ - sc520_mmcr->piodir31_16 = 0x2000; /* GPIO Direction */ - sc520_mmcr->piodir15_0 = 0x87b5; /* GPIO Direction */ - sc520_mmcr->piopfs31_16 = 0x0dfe; /* GPIO pin function 31-16 reg */ - sc520_mmcr->piopfs15_0 = 0x200a; /* GPIO pin function 15-0 reg */ - sc520_mmcr->cspfs = 0x00f8; /* Chip Select Pin Function Select */ - - sc520_mmcr->par[2] = 0x200713f8; /* Uart A (GPCS0, 0x013f8, 8 Bytes) */ - sc520_mmcr->par[3] = 0x2c0712f8; /* Uart B (GPCS3, 0x012f8, 8 Bytes) */ - sc520_mmcr->par[4] = 0x300711f8; /* Uart C (GPCS4, 0x011f8, 8 Bytes) */ - sc520_mmcr->par[5] = 0x340710f8; /* Uart D (GPCS5, 0x010f8, 8 Bytes) */ - sc520_mmcr->par[6] = 0xe3ffc000; /* SDRAM (0x00000000, 128MB) */ - sc520_mmcr->par[7] = 0xaa3fd000; /* StrataFlash (ROMCS1, 0x10000000, 16MB) */ - sc520_mmcr->par[8] = 0xca3fd100; /* StrataFlash (ROMCS2, 0x11000000, 16MB) */ - sc520_mmcr->par[9] = 0x4203d900; /* SRAM (GPCS0, 0x19000000, 1MB) */ - sc520_mmcr->par[10] = 0x4e03d910; /* SRAM (GPCS3, 0x19100000, 1MB) */ - sc520_mmcr->par[11] = 0x50018100; /* DP-RAM (GPCS4, 0x18100000, 4kB) */ - sc520_mmcr->par[12] = 0x54020000; /* CFLASH1 (0x200000000, 4kB) */ - sc520_mmcr->par[13] = 0x5c020001; /* CFLASH2 (0x200010000, 4kB) */ -/* sc520_mmcr->par14 = 0x8bfff800; */ /* BOOTCS at 0x18000000 */ -/* sc520_mmcr->par15 = 0x38201000; */ /* LEDs etc (GPCS6, 0x1000, 20 Bytes */ + u16 pio_out_cfg = 0x0000; + + /* Configure General Purpose Bus timing */ + writeb(CONFIG_SYS_SC520_GPCSRT, &sc520_mmcr->gpcsrt); + writeb(CONFIG_SYS_SC520_GPCSPW, &sc520_mmcr->gpcspw); + writeb(CONFIG_SYS_SC520_GPCSOFF, &sc520_mmcr->gpcsoff); + writeb(CONFIG_SYS_SC520_GPRDW, &sc520_mmcr->gprdw); + writeb(CONFIG_SYS_SC520_GPRDOFF, &sc520_mmcr->gprdoff); + writeb(CONFIG_SYS_SC520_GPWRW, &sc520_mmcr->gpwrw); + writeb(CONFIG_SYS_SC520_GPWROFF, &sc520_mmcr->gpwroff); + + /* Configure Programmable Input/Output Pins */ + writew(CONFIG_SYS_SC520_PIODIR15_0, &sc520_mmcr->piodir15_0); + writew(CONFIG_SYS_SC520_PIODIR31_16, &sc520_mmcr->piodir31_16); + writew(CONFIG_SYS_SC520_PIOPFS31_16, &sc520_mmcr->piopfs31_16); + writew(CONFIG_SYS_SC520_PIOPFS15_0, &sc520_mmcr->piopfs15_0); + writeb(CONFIG_SYS_SC520_CSPFS, &sc520_mmcr->cspfs); + writeb(CONFIG_SYS_SC520_CLKSEL, &sc520_mmcr->clksel); + + /* + * Turn off top board + * Set StrataFlash chips to 16-bit width + * Set StrataFlash chips to normal (non reset/power down) mode + */ + pio_out_cfg |= CONFIG_SYS_ENET_TOP_BRD_PWR; + pio_out_cfg |= CONFIG_SYS_ENET_SF_WIDTH; + pio_out_cfg |= CONFIG_SYS_ENET_SF1_MODE; + pio_out_cfg |= CONFIG_SYS_ENET_SF2_MODE; + writew(pio_out_cfg, &sc520_mmcr->pioset15_0); + + /* Turn off auxiliary power output */ + writew(CONFIG_SYS_ENET_AUX_PWR, &sc520_mmcr->pioclr15_0); + + /* Clear FPGA program mode */ + writew(CONFIG_SYS_ENET_FPGA_PROG, &sc520_mmcr->pioset31_16); + + /* Configure Programmable Address Regions */ + writel(CONFIG_SYS_SC520_UARTA_PAR, &sc520_mmcr->par[2]); + writel(CONFIG_SYS_SC520_UARTB_PAR, &sc520_mmcr->par[3]); + writel(CONFIG_SYS_SC520_UARTC_PAR, &sc520_mmcr->par[4]); + writel(CONFIG_SYS_SC520_UARTD_PAR, &sc520_mmcr->par[5]); + writel(CONFIG_SYS_SC520_SDRAM_PAR, &sc520_mmcr->par[6]); + writel(CONFIG_SYS_SC520_SF1_PAR, &sc520_mmcr->par[7]); + writel(CONFIG_SYS_SC520_SF2_PAR, &sc520_mmcr->par[8]); + writel(CONFIG_SYS_SC520_SRAM1_PAR, &sc520_mmcr->par[9]); + writel(CONFIG_SYS_SC520_SRAM2_PAR, &sc520_mmcr->par[10]); + writel(CONFIG_SYS_SC520_DPRAM_PAR, &sc520_mmcr->par[11]); + writel(CONFIG_SYS_SC520_CF1_PAR, &sc520_mmcr->par[12]); + writel(CONFIG_SYS_SC520_CF2_PAR, &sc520_mmcr->par[13]); +/* writel(CONFIG_SYS_SC520_BOOTCS_PAR, &sc520_mmcr->par14); */ +/* writel(CONFIG_SYS_SC520_LLIO_PAR, &sc520_mmcr->par15); */ /* Disable Watchdog */ - sc520_mmcr->wdtmrctl = 0x3333; - sc520_mmcr->wdtmrctl = 0xcccc; - sc520_mmcr->wdtmrctl = 0x0000; + writew(0x3333, &sc520_mmcr->wdtmrctl); + writew(0xcccc, &sc520_mmcr->wdtmrctl); + writew(0x0000, &sc520_mmcr->wdtmrctl); /* Chip Select Configuration */ - sc520_mmcr->bootcsctl = 0x0033; - sc520_mmcr->romcs1ctl = 0x0615; - sc520_mmcr->romcs2ctl = 0x0615; + writew(CONFIG_SYS_SC520_BOOTCS_CTRL, &sc520_mmcr->bootcsctl); + writew(CONFIG_SYS_SC520_ROMCS1_CTRL, &sc520_mmcr->romcs1ctl); + writew(CONFIG_SYS_SC520_ROMCS2_CTRL, &sc520_mmcr->romcs2ctl); + + writeb(CONFIG_SYS_SC520_ADDDECCTL, &sc520_mmcr->adddecctl); + writeb(CONFIG_SYS_SC520_UART1CTL, &sc520_mmcr->uart1ctl); + writeb(CONFIG_SYS_SC520_UART2CTL, &sc520_mmcr->uart2ctl); + + writeb(CONFIG_SYS_SC520_SYSARBCTL, &sc520_mmcr->sysarbctl); + writew(CONFIG_SYS_SC520_SYSARBMENB, &sc520_mmcr->sysarbmenb); - sc520_mmcr->adddecctl = 0x02; - sc520_mmcr->uart1ctl = 0x07; - sc520_mmcr->sysarbctl = 0x06; - sc520_mmcr->sysarbmenb = 0x0003; + /* enable posted-writes */ + writeb(CONFIG_SYS_SC520_HBCTL, &sc520_mmcr->hbctl); return 0; } @@ -157,6 +166,10 @@ int last_stage_init(void) major = minor = 0; + outb(0x00, LED_LATCH_ADDRESS); + + register_timer_isr (enet_timer_isr); + printf("Serck Controls eNET\n"); return 0; @@ -172,3 +185,87 @@ ulong board_flash_get_legacy (ulong base, int banknum, flash_info_t * info) } else return 0; } + +int board_eth_init(bd_t *bis) +{ + return pci_eth_init(bis); +} + +void setup_pcat_compatibility() +{ + /* disable global interrupt mode */ + writeb(0x40, &sc520_mmcr->picicr); + + /* set all irqs to edge */ + writeb(0x00, &sc520_mmcr->pic_mode[0]); + writeb(0x00, &sc520_mmcr->pic_mode[1]); + writeb(0x00, &sc520_mmcr->pic_mode[2]); + + /* + * active low polarity on PIC interrupt pins, + * active high polarity on all other irq pins + */ + writew(0x0000,&sc520_mmcr->intpinpol); + + /* + * PIT 0 -> IRQ0 + * RTC -> IRQ8 + * FP error -> IRQ13 + * UART1 -> IRQ4 + * UART2 -> IRQ3 + */ + writeb(SC520_IRQ0, &sc520_mmcr->pit_int_map[0]); + writeb(SC520_IRQ8, &sc520_mmcr->rtcmap); + writeb(SC520_IRQ13, &sc520_mmcr->ferrmap); + writeb(SC520_IRQ4, &sc520_mmcr->uart_int_map[0]); + writeb(SC520_IRQ3, &sc520_mmcr->uart_int_map[1]); + + /* Disable all other interrupt sources */ + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->gp_tmr_int_map[0]); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->gp_tmr_int_map[1]); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->gp_tmr_int_map[2]); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pit_int_map[1]); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pit_int_map[2]); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->ssimap); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->wdtmap); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->wpvmap); + writeb(SC520_IRQ_DISABLED, &sc520_mmcr->icemap); +} + +void enet_timer_isr(void) +{ + static long enet_ticks = 0; + + enet_ticks++; + + /* Toggle Watchdog every 100ms */ + if ((enet_ticks % 100) == 0) + hw_watchdog_reset(); + + /* Toggle Run LED every 500ms */ + if ((enet_ticks % 500) == 0) + enet_toggle_run_led(); +} + +void hw_watchdog_reset(void) +{ + /* Watchdog Reset must be atomic */ + long flag = disable_interrupts(); + + if (sc520_mmcr->piodata15_0 & WATCHDOG_PIO_BIT) + sc520_mmcr->pioclr15_0 = WATCHDOG_PIO_BIT; + else + sc520_mmcr->pioset15_0 = WATCHDOG_PIO_BIT; + + if (flag) + enable_interrupts(); +} + +void enet_toggle_run_led(void) +{ + unsigned char leds_state= inb(LED_LATCH_ADDRESS); + if (leds_state & LED_RUN_BITMASK) + outb(leds_state &~ LED_RUN_BITMASK, LED_LATCH_ADDRESS); + else + outb(leds_state | LED_RUN_BITMASK, LED_LATCH_ADDRESS); +}