--- /dev/null
+/*
+ * (C) Copyright 2007 Michal Simek
+ * (C) Copyright 2004 Atmark Techno, Inc.
+ *
+ * Michal SIMEK <monstr@monstr.eu>
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <version.h>
+#include <watchdog.h>
+#include <stdio_dev.h>
+#include <serial.h>
+#include <net.h>
+#include <spi.h>
+#include <linux/compiler.h>
+#include <asm/processor.h>
+#include <asm/microblaze_intc.h>
+#include <fdtdec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int display_banner(void)
+{
+ printf("\n\n%s\n\n", version_string);
+ return 0;
+}
+
+/*
+ * All attempts to come up with a "common" initialization sequence
+ * that works for all boards and architectures failed: some of the
+ * requirements are just _too_ different. To get rid of the resulting
+ * mess of board dependend #ifdef'ed code we now make the whole
+ * initialization sequence configurable to the user.
+ *
+ * The requirements for any new initalization function is simple: it
+ * receives a pointer to the "global data" structure as it's only
+ * argument, and returns an integer return code, where 0 means
+ * "continue" and != 0 means "fatal error, hang the system".
+ */
+typedef int (init_fnc_t) (void);
+
+init_fnc_t *init_sequence[] = {
+ env_init,
+#ifdef CONFIG_OF_CONTROL
+ fdtdec_check_fdt,
+#endif
+ serial_init,
+#ifndef CONFIG_SPL_BUILD
+ console_init_f,
+#endif
+ display_banner,
+#ifndef CONFIG_SPL_BUILD
+ interrupts_init,
+ timer_init,
+#endif
+ NULL,
+};
+
+unsigned long monitor_flash_len;
+
+void board_init_f(ulong not_used)
+{
+ bd_t *bd;
+ init_fnc_t **init_fnc_ptr;
+ gd = (gd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
+ bd = (bd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET
+ - GENERATED_BD_INFO_SIZE);
+#if defined(CONFIG_CMD_FLASH) && !defined(CONFIG_SPL_BUILD)
+ ulong flash_size = 0;
+#endif
+ asm ("nop"); /* FIXME gd is not initialize - wait */
+ memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
+ memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
+ gd->bd = bd;
+ gd->baudrate = CONFIG_BAUDRATE;
+ bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+ bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+ gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
+
+ monitor_flash_len = __end - __text_start;
+
+#ifdef CONFIG_OF_EMBED
+ /* Get a pointer to the FDT */
+ gd->fdt_blob = __dtb_dt_begin;
+#elif defined CONFIG_OF_SEPARATE
+ /* FDT is at end of image */
+ gd->fdt_blob = (void *)__end;
+#endif
+
+#ifndef CONFIG_SPL_BUILD
+ /* Allow the early environment to override the fdt address */
+ gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
+ (uintptr_t)gd->fdt_blob);
+#endif
+
+ /*
+ * The Malloc area is immediately below the monitor copy in DRAM
+ * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
+ * as our monitory code is run from SDRAM
+ */
+ mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
+
+ serial_initialize();
+
+#ifdef CONFIG_XILINX_TB_WATCHDOG
+ hw_watchdog_init();
+#endif
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ WATCHDOG_RESET();
+ if ((*init_fnc_ptr) () != 0)
+ hang();
+ }
+
+#ifndef CONFIG_SPL_BUILD
+#ifdef CONFIG_OF_CONTROL
+ /* For now, put this check after the console is ready */
+ if (fdtdec_prepare_fdt())
+ panic("** No FDT - please see doc/README.fdt-control");
+ else
+ printf("DTB: 0x%x\n", (u32)gd->fdt_blob);
+#endif
+
+ puts("SDRAM :\n");
+ printf("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
+ printf("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
+ printf("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
+
+#if defined(CONFIG_CMD_FLASH)
+ puts("Flash: ");
+ bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+ flash_size = flash_init();
+ if (bd->bi_flashstart && flash_size > 0) {
+# ifdef CONFIG_SYS_FLASH_CHECKSUM
+ print_size(flash_size, "");
+ /*
+ * Compute and print flash CRC if flashchecksum is set to 'y'
+ *
+ * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
+ */
+ if (getenv_yesno("flashchecksum") == 1) {
+ printf(" CRC: %08X",
+ crc32(0, (const u8 *)bd->bi_flashstart,
+ flash_size)
+ );
+ }
+ putc('\n');
+# else /* !CONFIG_SYS_FLASH_CHECKSUM */
+ print_size(flash_size, "\n");
+# endif /* CONFIG_SYS_FLASH_CHECKSUM */
+ bd->bi_flashsize = flash_size;
+ bd->bi_flashoffset = bd->bi_flashstart + flash_size;
+ } else {
+ puts("Flash init FAILED");
+ bd->bi_flashstart = 0;
+ bd->bi_flashsize = 0;
+ bd->bi_flashoffset = 0;
+ }
+#endif
+
+#ifdef CONFIG_SPI
+ spi_init();
+#endif
+
+ /* relocate environment function pointers etc. */
+ env_relocate();
+
+ /* Initialize stdio devices */
+ stdio_init();
+
+ /* Initialize the jump table for applications */
+ jumptable_init();
+
+ /* Initialize the console (after the relocation and devices init) */
+ console_init_r();
+
+ board_init();
+
+ /* Initialize from environment */
+ load_addr = getenv_ulong("loadaddr", 16, load_addr);
+
+#if defined(CONFIG_CMD_NET)
+ printf("Net: ");
+ eth_initialize(gd->bd);
+
+ uchar enetaddr[6];
+ eth_getenv_enetaddr("ethaddr", enetaddr);
+ printf("MAC: %pM\n", enetaddr);
+#endif
+
+ /* main_loop */
+ for (;;) {
+ WATCHDOG_RESET();
+ main_loop();
+ }
+#endif /* CONFIG_SPL_BUILD */
+}
Code Review / kvmfornfv.git / blobdiff