* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <common.h>
#include <command.h>
+#include <environment.h>
#include <malloc.h>
#include <stdio_dev.h>
#include <version.h>
#include <fdtdec.h>
#include <post.h>
#include <logbuff.h>
+#include <asm/sections.h>
#ifdef CONFIG_BITBANGMII
#include <miiphy.h>
#endif
-#ifdef CONFIG_DRIVER_SMC91111
-#include "../drivers/net/smc91111.h"
-#endif
-#ifdef CONFIG_DRIVER_LAN91C96
-#include "../drivers/net/lan91c96.h"
-#endif
-
DECLARE_GLOBAL_DATA_PTR;
ulong monitor_flash_len;
#endif
#if defined(CONFIG_HARD_I2C) || \
- defined(CONFIG_SOFT_I2C)
+ defined(CONFIG_SYS_I2C)
#include <i2c.h>
#endif
return (0);
}
-#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
+#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
static int init_func_i2c(void)
{
puts("I2C: ");
+#ifdef CONFIG_SYS_I2C
+ i2c_init_all();
+#else
i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+#endif
puts("ready\n");
return (0);
}
int arch_cpu_init(void)
__attribute__((weak, alias("__arch_cpu_init")));
+int __power_init_board(void)
+{
+ return 0;
+}
+int power_init_board(void)
+ __attribute__((weak, alias("__power_init_board")));
+
+ /* Record the board_init_f() bootstage (after arch_cpu_init()) */
+static int mark_bootstage(void)
+{
+ bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
+
+ return 0;
+}
+
init_fnc_t *init_sequence[] = {
arch_cpu_init, /* basic arch cpu dependent setup */
-
-#if defined(CONFIG_BOARD_EARLY_INIT_F)
- board_early_init_f,
-#endif
+ mark_bootstage,
#ifdef CONFIG_OF_CONTROL
fdtdec_check_fdt,
+#endif
+#if defined(CONFIG_BOARD_EARLY_INIT_F)
+ board_early_init_f,
#endif
timer_init, /* initialize timer */
#ifdef CONFIG_BOARD_POSTCLK_INIT
#if defined(CONFIG_DISPLAY_BOARDINFO)
checkboard, /* display board info */
#endif
-#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
+#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
init_func_i2c,
#endif
dram_init, /* configure available RAM banks */
#ifdef CONFIG_PRAM
ulong reg;
#endif
-
- bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
-
- /* Pointer is writable since we allocated a register for it */
- gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
- /* compiler optimization barrier needed for GCC >= 3.4 */
- __asm__ __volatile__("": : :"memory");
+ void *new_fdt = NULL;
+ size_t fdt_size = 0;
memset((void *)gd, 0, sizeof(gd_t));
#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
/* reserve TLB table */
- addr -= (4096 * 4);
+ gd->arch.tlb_size = 4096 * 4;
+ addr -= gd->arch.tlb_size;
/* round down to next 64 kB limit */
addr &= ~(0x10000 - 1);
- gd->tlb_addr = addr;
- debug("TLB table at: %08lx\n", addr);
+ gd->arch.tlb_addr = addr;
+ debug("TLB table from %08lx to %08lx\n", addr, addr + gd->arch.tlb_size);
#endif
/* round down to next 4 kB limit */
debug("Reserving %zu Bytes for Global Data at: %08lx\n",
sizeof (gd_t), addr_sp);
+#if defined(CONFIG_OF_SEPARATE) && defined(CONFIG_OF_CONTROL)
+ /*
+ * If the device tree is sitting immediate above our image then we
+ * must relocate it. If it is embedded in the data section, then it
+ * will be relocated with other data.
+ */
+ if (gd->fdt_blob) {
+ fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
+
+ addr_sp -= fdt_size;
+ new_fdt = (void *)addr_sp;
+ debug("Reserving %zu Bytes for FDT at: %08lx\n",
+ fdt_size, addr_sp);
+ }
+#endif
+
/* setup stackpointer for exeptions */
gd->irq_sp = addr_sp;
#ifdef CONFIG_USE_IRQ
gd->start_addr_sp = addr_sp;
gd->reloc_off = addr - _TEXT_BASE;
debug("relocation Offset is: %08lx\n", gd->reloc_off);
+ if (new_fdt) {
+ memcpy(new_fdt, gd->fdt_blob, fdt_size);
+ gd->fdt_blob = new_fdt;
+ }
memcpy(id, (void *)gd, sizeof(gd_t));
-
- relocate_code(addr_sp, id, addr);
-
- /* NOTREACHED - relocate_code() does not return */
}
#if !defined(CONFIG_SYS_NO_FLASH)
#endif
/*
- ************************************************************************
+ * Tell if it's OK to load the environment early in boot.
+ *
+ * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see
+ * if this is OK (defaulting to saying it's not OK).
+ *
+ * NOTE: Loading the environment early can be a bad idea if security is
+ * important, since no verification is done on the environment.
+ *
+ * @return 0 if environment should not be loaded, !=0 if it is ok to load
+ */
+static int should_load_env(void)
+{
+#ifdef CONFIG_OF_CONTROL
+ return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
+#elif defined CONFIG_DELAY_ENVIRONMENT
+ return 0;
+#else
+ return 1;
+#endif
+}
+
+#if defined(CONFIG_DISPLAY_BOARDINFO_LATE) && defined(CONFIG_OF_CONTROL)
+static void display_fdt_model(const void *blob)
+{
+ const char *model;
+
+ model = (char *)fdt_getprop(blob, 0, "model", NULL);
+ printf("Model: %s\n", model ? model : "<unknown>");
+}
+#endif
+
+/************************************************************************
*
* This is the next part if the initialization sequence: we are now
* running from RAM and have a "normal" C environment, i. e. global
ulong flash_size;
#endif
- gd = id;
-
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
#ifdef CONFIG_ARCH_EARLY_INIT_R
arch_early_init_r();
#endif
+ power_init_board();
#if !defined(CONFIG_SYS_NO_FLASH)
puts("Flash: ");
flash_size = flash_init();
if (flash_size > 0) {
# ifdef CONFIG_SYS_FLASH_CHECKSUM
- char *s = getenv("flashchecksum");
-
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 (s && (*s == 'y')) {
+ if (getenv_yesno("flashchecksum") == 1) {
printf(" CRC: %08X", crc32(0,
(const unsigned char *) CONFIG_SYS_FLASH_BASE,
flash_size));
#endif
#ifdef CONFIG_GENERIC_MMC
- puts("MMC: ");
- mmc_initialize(gd->bd);
+ puts("MMC: ");
+ mmc_initialize(gd->bd);
#endif
#ifdef CONFIG_HAS_DATAFLASH
#endif
/* initialize environment */
- env_relocate();
+ if (should_load_env())
+ env_relocate();
+ else
+ set_default_env(NULL);
#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
arm_pci_init();
console_init_r(); /* fully init console as a device */
+#ifdef CONFIG_DISPLAY_BOARDINFO_LATE
+# ifdef CONFIG_OF_CONTROL
+ /* Put this here so it appears on the LCD, now it is ready */
+ display_fdt_model(gd->fdt_blob);
+# else
+ checkboard();
+# endif
+#endif
+
#if defined(CONFIG_ARCH_MISC_INIT)
/* miscellaneous arch dependent initialisations */
arch_misc_init();
/* enable exceptions */
enable_interrupts();
- /* Perform network card initialisation if necessary */
-#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
- /* XXX: this needs to be moved to board init */
- if (getenv("ethaddr")) {
- uchar enetaddr[6];
- eth_getenv_enetaddr("ethaddr", enetaddr);
- smc_set_mac_addr(enetaddr);
- }
-#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
-
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
/* NOTREACHED - no way out of command loop except booting */
}
-
-void hang(void)
-{
- puts("### ERROR ### Please RESET the board ###\n");
- for (;;);
-}
projects / karo-tx-uboot.git / blobdiff