--- /dev/null
+/*
+ * (C) Copyright 2001-2003
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <command.h>
+#include <malloc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern void lxt971_no_sleep(void);
+
+int board_revision(void)
+{
+ unsigned long osrl_reg;
+ unsigned long isr1l_reg;
+ unsigned long tcr_reg;
+ unsigned long value;
+
+ /*
+ * Get version of HUB405 board from GPIO's
+ */
+
+ /*
+ * Setup GPIO pin(s) (IRQ6/GPIO23)
+ */
+ osrl_reg = in_be32((void *)GPIO0_OSRH);
+ isr1l_reg = in_be32((void *)GPIO0_ISR1H);
+ tcr_reg = in_be32((void *)GPIO0_TCR);
+ out_be32((void *)GPIO0_OSRH, osrl_reg & ~0x00030000); /* output select */
+ out_be32((void *)GPIO0_ISR1H, isr1l_reg | 0x00030000); /* input select */
+ out_be32((void *)GPIO0_TCR, tcr_reg & ~0x00000100); /* select input */
+
+ udelay(1000); /* wait some time before reading input */
+ value = in_be32((void *)GPIO0_IR) & 0x00000100; /* get config bits */
+
+ /*
+ * Restore GPIO settings
+ */
+ out_be32((void *)GPIO0_OSRH, osrl_reg); /* output select */
+ out_be32((void *)GPIO0_ISR1H, isr1l_reg); /* input select */
+ out_be32((void *)GPIO0_TCR, tcr_reg); /* enable output driver for outputs */
+
+ if (value & 0x00000100) {
+ /* Revision 1.1 or 1.2 detected */
+ return 1;
+ }
+
+ /* Revision 1.0 */
+ return 0;
+}
+
+
+int board_early_init_f (void)
+{
+ /*
+ * IRQ 0-15 405GP internally generated; active high; level sensitive
+ * IRQ 16 405GP internally generated; active low; level sensitive
+ * IRQ 17-24 RESERVED
+ * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
+ * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
+ * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
+ * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
+ * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
+ * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
+ * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
+ */
+ mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
+ mtdcr(UIC0ER, 0x00000000); /* disable all ints */
+ mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
+ mtdcr(UIC0PR, 0xFFFFFF9F); /* set int polarities */
+ mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
+ mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/
+ mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
+
+ /*
+ * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
+ */
+ mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
+
+ return 0;
+}
+
+#define LED_REG (DUART0_BA + 0x20)
+int misc_init_r (void)
+{
+ unsigned long val;
+ int delay, flashcnt;
+ char *str;
+ char hw_rev[4];
+
+ /*
+ * Enable interrupts in exar duart mcr[3]
+ */
+ out_8((void *)(DUART0_BA + 4), 0x08);
+ out_8((void *)(DUART1_BA + 4), 0x08);
+ out_8((void *)(DUART2_BA + 4), 0x08);
+ out_8((void *)(DUART3_BA + 4), 0x08);
+
+ /*
+ * Set RS232/RS422 control (RS232 = high on GPIO)
+ */
+ val = in_be32((void *)GPIO0_OR);
+ val &= ~(CONFIG_SYS_UART2_RS232 | CONFIG_SYS_UART3_RS232 |
+ CONFIG_SYS_UART4_RS232 | CONFIG_SYS_UART5_RS232);
+
+ str = getenv("phys0");
+ if (!str || (str && (str[0] == '0')))
+ val |= CONFIG_SYS_UART2_RS232;
+
+ str = getenv("phys1");
+ if (!str || (str && (str[0] == '0')))
+ val |= CONFIG_SYS_UART3_RS232;
+
+ str = getenv("phys2");
+ if (!str || (str && (str[0] == '0')))
+ val |= CONFIG_SYS_UART4_RS232;
+
+ str = getenv("phys3");
+ if (!str || (str && (str[0] == '0')))
+ val |= CONFIG_SYS_UART5_RS232;
+
+ out_be32((void *)GPIO0_OR, val);
+
+ /*
+ * check board type and setup AP power
+ */
+ str = getenv("bd_type"); /* this is only set on non prototype hardware */
+ if (str != NULL) {
+ if ((strcmp(str, "swch405") == 0) || ((!strcmp(str, "hub405") && (gd->board_type >= 1)))) {
+ unsigned char led_reg_default = 0;
+ str = getenv("ap_pwr");
+ if (!str || (str && (str[0] == '1')))
+ led_reg_default = 0x04 | 0x02 ; /* U2_LED | AP_PWR */
+
+ /*
+ * Flash LEDs
+ */
+ for (flashcnt = 0; flashcnt < 3; flashcnt++) {
+ /* LED_A..D off */
+ out_8((void *)LED_REG, led_reg_default);
+ for (delay = 0; delay < 100; delay++)
+ udelay(1000);
+ /* LED_A..D on */
+ out_8((void *)LED_REG, led_reg_default | 0xf0);
+ for (delay = 0; delay < 50; delay++)
+ udelay(1000);
+ }
+ out_8((void *)LED_REG, led_reg_default);
+ }
+ }
+
+ /*
+ * Reset external DUARTs
+ */
+ out_be32((void *)GPIO0_OR,
+ in_be32((void *)GPIO0_OR) | CONFIG_SYS_DUART_RST); /* set reset to high */
+ udelay(10); /* wait 10us */
+ out_be32((void *)GPIO0_OR,
+ in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_DUART_RST); /* set reset to low */
+ udelay(1000); /* wait 1ms */
+
+ /*
+ * Store hardware revision in environment for further processing
+ */
+ sprintf(hw_rev, "1.%ld", gd->board_type);
+ setenv("hw_rev", hw_rev);
+ return (0);
+}
+
+
+/*
+ * Check Board Identity:
+ */
+int checkboard (void)
+{
+ char str[64];
+ int i = getenv_f("serial#", str, sizeof(str));
+
+ puts ("Board: ");
+
+ if (i == -1) {
+ puts ("### No HW ID - assuming HUB405");
+ } else {
+ puts(str);
+ }
+
+ if (getenv_f("bd_type", str, sizeof(str)) != -1) {
+ printf(" (%s", str);
+ } else {
+ puts(" (Missing bd_type!");
+ }
+
+ gd->board_type = board_revision();
+ printf(", Rev 1.%ld)\n", gd->board_type);
+
+ /*
+ * Disable sleep mode in LXT971
+ */
+ lxt971_no_sleep();
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff