--- /dev/null
+/*
+ * (C) Copyright 2002-2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
+ * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <stdio_dev.h>
+#include <timestamp.h>
+#include <version.h>
+#include <net.h>
+#include <serial.h>
+#include <nand.h>
+#include <onenand_uboot.h>
+#include <mmc.h>
+#include <asm/sections.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_SYS_I2C)
+#include <i2c.h>
+#endif
+
+ulong monitor_flash_len;
+
+/*
+ * Init Utilities
+ */
+
+#if !defined(CONFIG_BAUDRATE)
+#define CONFIG_BAUDRATE 38400
+#endif
+static int init_baudrate(void)
+{
+ gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
+ return 0;
+}
+
+/*
+ * WARNING: this code looks "cleaner" than the PowerPC version, but
+ * has the disadvantage that you either get nothing, or everything.
+ * On PowerPC, you might see "DRAM: " before the system hangs - which
+ * gives a simple yet clear indication which part of the
+ * initialization if failing.
+ */
+static int display_dram_config(void)
+{
+ int i;
+
+#ifdef DEBUG
+ puts("RAM Configuration:\n");
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
+ print_size(gd->bd->bi_dram[i].size, "\n");
+ }
+#else
+ ulong size = 0;
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
+ size += gd->bd->bi_dram[i].size;
+
+ puts("DRAM: ");
+ print_size(size, "\n");
+#endif
+
+ return 0;
+}
+
+#ifndef CONFIG_SYS_NO_FLASH
+static void display_flash_config(ulong size)
+{
+ puts("Flash: ");
+ print_size(size, "\n");
+}
+#endif /* CONFIG_SYS_NO_FLASH */
+
+#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
+#include <pci.h>
+static int nds32_pci_init(void)
+{
+ pci_init();
+ return 0;
+}
+#endif /* CONFIG_CMD_PCI || CONFIG_PCI */
+
+#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+static int pmu_init(void)
+{
+#if defined(CONFIG_FTPMU010_POWER)
+#ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
+ ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
+ ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
+ ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
+#endif /* __NDS32_N1213_43U1H__ */
+#endif
+ return 0;
+}
+#endif
+#endif
+
+/*
+ * Breathe some life into the board...
+ *
+ * Initialize a serial port as console, and carry out some hardware
+ * tests.
+ *
+ * The first part of initialization is running from Flash memory;
+ * its main purpose is to initialize the RAM so that we
+ * can relocate the monitor code to RAM.
+ */
+
+/*
+ * 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 dependent #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);
+
+void __dram_init_banksize(void)
+{
+ gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+ gd->bd->bi_dram[0].size = gd->ram_size;
+}
+void dram_init_banksize(void)
+ __attribute__((weak, alias("__dram_init_banksize")));
+
+init_fnc_t *init_sequence[] = {
+#if defined(CONFIG_ARCH_CPU_INIT)
+ arch_cpu_init, /* basic arch cpu dependent setup */
+#endif
+#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+ pmu_init,
+#endif
+#endif
+ board_init, /* basic board dependent setup */
+#if defined(CONFIG_USE_IRQ)
+ interrupt_init, /* set up exceptions */
+#endif
+ timer_init, /* initialize timer */
+ env_init, /* initialize environment */
+ init_baudrate, /* initialze baudrate settings */
+ serial_init, /* serial communications setup */
+ console_init_f, /* stage 1 init of console */
+#if defined(CONFIG_DISPLAY_BOARDINFO)
+ checkboard, /* display board info */
+#endif
+#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
+ init_func_i2c,
+#endif
+ dram_init, /* configure available RAM banks */
+ display_dram_config,
+ NULL,
+};
+
+void board_init_f(ulong bootflag)
+{
+ bd_t *bd;
+ init_fnc_t **init_fnc_ptr;
+ gd_t *id;
+ ulong addr, addr_sp;
+
+ /* Pointer is writable since we allocated a register for it */
+ gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
+
+ memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
+
+ gd->mon_len = (unsigned int)(&__bss_end) - (unsigned int)(&_start);
+
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ if ((*init_fnc_ptr)() != 0)
+ hang();
+ }
+
+ debug("monitor len: %08lX\n", gd->mon_len);
+ /*
+ * Ram is setup, size stored in gd !!
+ */
+ debug("ramsize: %08lX\n", gd->ram_size);
+
+ addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
+
+ /* round down to next 4 kB limit */
+ addr &= ~(4096 - 1);
+ debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
+
+#ifdef CONFIG_LCD
+#ifdef CONFIG_FB_ADDR
+ gd->fb_base = CONFIG_FB_ADDR;
+#else
+ /* reserve memory for LCD display (always full pages) */
+ addr = lcd_setmem(addr);
+ gd->fb_base = addr;
+#endif /* CONFIG_FB_ADDR */
+#endif /* CONFIG_LCD */
+
+ /*
+ * reserve memory for U-Boot code, data & bss
+ * round down to next 4 kB limit
+ */
+ addr -= gd->mon_len;
+ addr &= ~(4096 - 1);
+
+ debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
+
+ /*
+ * reserve memory for malloc() arena
+ */
+ addr_sp = addr - TOTAL_MALLOC_LEN;
+ debug("Reserving %dk for malloc() at: %08lx\n",
+ TOTAL_MALLOC_LEN >> 10, addr_sp);
+ /*
+ * (permanently) allocate a Board Info struct
+ * and a permanent copy of the "global" data
+ */
+ addr_sp -= GENERATED_BD_INFO_SIZE;
+ bd = (bd_t *) addr_sp;
+ gd->bd = bd;
+ memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
+ debug("Reserving %zu Bytes for Board Info at: %08lx\n",
+ GENERATED_BD_INFO_SIZE, addr_sp);
+
+ addr_sp -= GENERATED_GBL_DATA_SIZE;
+ id = (gd_t *) addr_sp;
+ debug("Reserving %zu Bytes for Global Data at: %08lx\n",
+ GENERATED_GBL_DATA_SIZE, addr_sp);
+
+ /* setup stackpointer for exeptions */
+ gd->irq_sp = addr_sp;
+#ifdef CONFIG_USE_IRQ
+ addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
+ debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
+ CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
+#endif
+ /* leave 3 words for abort-stack */
+ addr_sp -= 12;
+
+ /* 8-byte alignment for ABI compliance */
+ addr_sp &= ~0x07;
+ debug("New Stack Pointer is: %08lx\n", addr_sp);
+
+ /* Ram isn't board specific, so move it to board code ... */
+ dram_init_banksize();
+ display_dram_config(); /* and display it */
+
+ gd->relocaddr = addr;
+ gd->start_addr_sp = addr_sp;
+
+ gd->reloc_off = addr - _TEXT_BASE;
+
+ debug("relocation Offset is: %08lx\n", gd->reloc_off);
+ memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
+
+ relocate_code(addr_sp, id, addr);
+
+ /* NOTREACHED - relocate_code() does not return */
+}
+
+/*
+ * This is the next part if the initialization sequence: we are now
+ * running from RAM and have a "normal" C environment, i. e. global
+ * data can be written, BSS has been cleared, the stack size in not
+ * that critical any more, etc.
+ */
+void board_init_r(gd_t *id, ulong dest_addr)
+{
+ bd_t *bd;
+ ulong malloc_start;
+
+ gd = id;
+ bd = gd->bd;
+
+ gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
+
+ monitor_flash_len = (ulong)&_end - (ulong)&_start;
+ debug("monitor flash len: %08lX\n", monitor_flash_len);
+
+ board_init(); /* Setup chipselects */
+
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+ /*
+ * We have to relocate the command table manually
+ */
+ fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
+ ll_entry_count(cmd_tbl_t, cmd));
+#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
+
+ serial_initialize();
+
+ debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
+
+ /* The Malloc area is immediately below the monitor copy in DRAM */
+ malloc_start = dest_addr - TOTAL_MALLOC_LEN;
+ mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
+
+#ifndef CONFIG_SYS_NO_FLASH
+ /* configure available FLASH banks */
+ gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+ gd->bd->bi_flashsize = flash_init();
+ gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
+
+ if (gd->bd->bi_flashsize)
+ display_flash_config(gd->bd->bi_flashsize);
+#endif /* CONFIG_SYS_NO_FLASH */
+
+#if defined(CONFIG_CMD_NAND)
+ puts("NAND: ");
+ nand_init(); /* go init the NAND */
+#endif
+
+#if defined(CONFIG_CMD_IDE)
+ puts("IDE: ");
+ ide_init();
+#endif
+
+#ifdef CONFIG_GENERIC_MMC
+ puts("MMC: ");
+ mmc_initialize(gd->bd);
+#endif
+
+#if defined(CONFIG_SYS_I2C_ADAPTERS)
+ i2c_reloc_fixup();
+#endif
+
+ /* initialize environment */
+ env_relocate();
+
+#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
+ puts("PCI: ");
+ nds32_pci_init();
+#endif
+
+ stdio_init(); /* get the devices list going. */
+
+ jumptable_init();
+
+#if defined(CONFIG_API)
+ /* Initialize API */
+ api_init();
+#endif
+
+ console_init_r(); /* fully init console as a device */
+
+#if defined(CONFIG_ARCH_MISC_INIT)
+ /* miscellaneous arch dependent initialisations */
+ arch_misc_init();
+#endif
+#if defined(CONFIG_MISC_INIT_R)
+ /* miscellaneous platform dependent initialisations */
+ misc_init_r();
+#endif
+
+#if defined(CONFIG_USE_IRQ)
+ /* set up exceptions */
+ interrupt_init();
+ /* enable exceptions */
+ enable_interrupts();
+#endif
+
+ /* Initialize from environment */
+ load_addr = getenv_ulong("loadaddr", 16, load_addr);
+
+#ifdef CONFIG_BOARD_LATE_INIT
+ board_late_init();
+#endif
+
+#if defined(CONFIG_CMD_NET)
+ puts("Net: ");
+
+ eth_initialize(gd->bd);
+#if defined(CONFIG_RESET_PHY_R)
+ debug("Reset Ethernet PHY\n");
+ reset_phy();
+#endif
+#endif
+
+ /* main_loop() can return to retry autoboot, if so just run it again. */
+ for (;;)
+ main_loop();
+
+ /* NOTREACHED - no way out of command loop except booting */
+}
Code Review / kvmfornfv.git / blobdiff