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Diffstat (limited to 'board/eNET/eNET.c')
| -rw-r--r-- | board/eNET/eNET.c | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/board/eNET/eNET.c b/board/eNET/eNET.c deleted file mode 100644 index 2f26470..0000000 --- a/board/eNET/eNET.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - * (C) Copyright 2008 - * Graeme Russ, graeme.russ@gmail.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * 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 - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/sc520.h> -#include <net.h> -#include <netdev.h> - -#ifdef CONFIG_HW_WATCHDOG -#include <watchdog.h> -#endif - -#include "hardware.h" - -DECLARE_GLOBAL_DATA_PTR; - -unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN; - -static void enet_timer_isr(void); -static void enet_toggle_run_led(void); -static void enet_setup_pars(void); - -/* - * Miscellaneous platform dependent initializations - */ -int board_early_init_f(void) -{ - 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); - - enet_setup_pars(); - - /* Disable Watchdog */ - writew(0x3333, &sc520_mmcr->wdtmrctl); - writew(0xcccc, &sc520_mmcr->wdtmrctl); - writew(0x0000, &sc520_mmcr->wdtmrctl); - - /* Chip Select Configuration */ - 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); - - /* enable posted-writes */ - writeb(CONFIG_SYS_SC520_HBCTL, &sc520_mmcr->hbctl); - - return 0; -} - -static void enet_setup_pars(void) -{ - /* - * PARs 11 and 12 are 2MB SRAM @ 0x19000000 - * - * These are setup now because older version of U-Boot have them - * mapped to a different PAR which gets clobbered which prevents - * using SRAM for warm-booting a new image - */ - writel(CONFIG_SYS_SC520_SRAM1_PAR, &sc520_mmcr->par[11]); - writel(CONFIG_SYS_SC520_SRAM2_PAR, &sc520_mmcr->par[12]); - - /* PARs 0 and 1 are Compact Flash slots (4kB each) */ - writel(CONFIG_SYS_SC520_CF1_PAR, &sc520_mmcr->par[0]); - writel(CONFIG_SYS_SC520_CF2_PAR, &sc520_mmcr->par[1]); - - /* PAR 2 is used for Cache-As-RAM */ - - /* - * PARs 5 through 8 are additional NS16550 UARTS - * 8 bytes each @ 0x013f8, 0x012f8, 0x011f8 and 0x010f8 - */ - writel(CONFIG_SYS_SC520_UARTA_PAR, &sc520_mmcr->par[5]); - writel(CONFIG_SYS_SC520_UARTB_PAR, &sc520_mmcr->par[6]); - writel(CONFIG_SYS_SC520_UARTC_PAR, &sc520_mmcr->par[7]); - writel(CONFIG_SYS_SC520_UARTD_PAR, &sc520_mmcr->par[8]); - - /* PARs 9 and 10 are 32MB StrataFlash @ 0x10000000 */ - writel(CONFIG_SYS_SC520_SF1_PAR, &sc520_mmcr->par[9]); - writel(CONFIG_SYS_SC520_SF2_PAR, &sc520_mmcr->par[10]); - - /* PAR 13 is 4kB DPRAM @ 0x18100000 (implemented in FPGA) */ - writel(CONFIG_SYS_SC520_DPRAM_PAR, &sc520_mmcr->par[13]); - - /* - * PAR 14 is Low Level I/O (LEDs, Hex Switches etc) - * Already configured in board_init16 (eNET_start16.S) - * - * PAR 15 is Boot ROM - * Already configured in board_init16 (eNET_start16.S) - */ -} - - -int board_early_init_r(void) -{ - /* CPU Speed to 100MHz */ - gd->cpu_clk = 100000000; - - /* Crystal is 33.000MHz */ - gd->bus_clk = 33000000; - - return 0; -} - -void show_boot_progress(int val) -{ - uchar led_mask; - - led_mask = 0x00; - - if (val < 0) - led_mask |= LED_ERR_BITMASK; - - led_mask |= (uchar)(val & 0x001f); - outb(led_mask, LED_LATCH_ADDRESS); -} - - -int last_stage_init(void) -{ - outb(0x00, LED_LATCH_ADDRESS); - - register_timer_isr(enet_timer_isr); - - printf("Serck Controls eNET\n"); - - return 0; -} - -ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info) -{ - if (banknum == 0) { /* non-CFI boot flash */ - info->portwidth = FLASH_CFI_8BIT; - info->chipwidth = FLASH_CFI_BY8; - info->interface = FLASH_CFI_X8; - return 1; - } 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; - - 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); -} |