Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / nios2 / lib / board.c

diff --git a/qemu/roms/u-boot/arch/nios2/lib/board.c b/qemu/roms/u-boot/arch/nios2/lib/board.c
new file mode 100644 (file)
index 0000000..f24218f
--- /dev/null
+++ b/qemu/roms/u-boot/arch/nios2/lib/board.c
@@ -0,0 +1,147 @@
+/*
+ * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <stdio_dev.h>
+#include <watchdog.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <net.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
+#if defined(CONFIG_SYS_NIOS_EPCSBASE)
+#include <nios2-epcs.h>
+#endif
+#ifdef CONFIG_CMD_NAND
+#include <nand.h>      /* cannot even include nand.h if it isnt configured */
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * 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);
+
+
+/************************************************************************
+ * Initialization sequence                                             *
+ ***********************************************************************/
+
+init_fnc_t *init_sequence[] = {
+#if defined(CONFIG_BOARD_EARLY_INIT_F)
+       board_early_init_f,     /* Call board-specific init code early.*/
+#endif
+#if defined(CONFIG_SYS_NIOS_EPCSBASE)
+       epcs_reset,
+#endif
+
+       env_init,
+       serial_init,
+       console_init_f,
+       display_options,
+       checkcpu,
+       checkboard,
+       NULL,                   /* Terminate this list */
+};
+
+
+/***********************************************************************/
+void board_init(void)
+{
+       bd_t *bd;
+       init_fnc_t **init_fnc_ptr;
+       static gd_t gd_data;
+       static bd_t bd_data;
+
+       /* Pointer is writable since we allocated a register for it. */
+       gd = &gd_data;
+       /* compiler optimization barrier needed for GCC >= 3.4 */
+       __asm__ __volatile__("" : : : "memory");
+
+       gd->bd = &bd_data;
+       gd->baudrate = CONFIG_BAUDRATE;
+       gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
+
+       bd = gd->bd;
+       bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+       bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+#ifndef CONFIG_SYS_NO_FLASH
+       bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+#endif
+#if    defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
+       bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
+       bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
+#endif
+
+       for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+               WATCHDOG_RESET();
+               if ((*init_fnc_ptr) () != 0)
+                       hang();
+       }
+
+       WATCHDOG_RESET();
+
+       /* The Malloc area is immediately below the monitor copy in RAM */
+       mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
+
+#ifndef CONFIG_SYS_NO_FLASH
+       WATCHDOG_RESET();
+       bd->bi_flashsize = flash_init();
+#endif
+
+#ifdef CONFIG_CMD_NAND
+       puts("NAND:  ");
+       nand_init();
+#endif
+
+#ifdef CONFIG_GENERIC_MMC
+       puts("MMC:   ");
+       mmc_initialize(bd);
+#endif
+
+       WATCHDOG_RESET();
+       env_relocate();
+
+       WATCHDOG_RESET();
+       stdio_init();
+       jumptable_init();
+       console_init_r();
+
+       WATCHDOG_RESET();
+       interrupt_init();
+
+#if defined(CONFIG_BOARD_LATE_INIT)
+       board_late_init();
+#endif
+
+#if defined(CONFIG_CMD_NET)
+       puts("Net:   ");
+       eth_initialize(bd);
+#endif
+
+       /* main_loop */
+       for (;;) {
+               WATCHDOG_RESET();
+               main_loop();
+       }
+}