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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:04 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:03 +0200
commitea0364f1bbfed1e3ea711147420875cf338fe77a (patch)
tree15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /arch/blackfin/lib/board.c
parent89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff)
downloadu-boot-linaro-stable-ea0364f1bbfed1e3ea711147420875cf338fe77a.tar.gz
Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk This change is intended to clean up the top-level directory structure and more closely mimic Linux's directory organization. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/blackfin/lib/board.c')
-rw-r--r--arch/blackfin/lib/board.c419
1 files changed, 419 insertions, 0 deletions
diff --git a/arch/blackfin/lib/board.c b/arch/blackfin/lib/board.c
new file mode 100644
index 000000000..4e9bb1922
--- /dev/null
+++ b/arch/blackfin/lib/board.c
@@ -0,0 +1,419 @@
+/*
+ * U-boot - board.c First C file to be called contains init routines
+ *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <stdio_dev.h>
+#include <environment.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <net.h>
+#include <timestamp.h>
+#include <status_led.h>
+#include <version.h>
+
+#include <asm/cplb.h>
+#include <asm/mach-common/bits/mpu.h>
+#include <kgdb.h>
+
+#ifdef CONFIG_CMD_NAND
+#include <nand.h> /* cannot even include nand.h if it isnt configured */
+#endif
+
+#ifdef CONFIG_BITBANGMII
+#include <miiphy.h>
+#endif
+
+#if defined(CONFIG_POST)
+#include <post.h>
+int post_flag;
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
+
+__attribute__((always_inline))
+static inline void serial_early_puts(const char *s)
+{
+#ifdef CONFIG_DEBUG_EARLY_SERIAL
+ serial_puts("Early: ");
+ serial_puts(s);
+#endif
+}
+
+static int display_banner(void)
+{
+ printf("\n\n%s\n\n", version_string);
+ printf("CPU: ADSP " MK_STR(CONFIG_BFIN_CPU) " "
+ "(Detected Rev: 0.%d) "
+ "(%s boot)\n",
+ bfin_revid(),
+ get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
+ return 0;
+}
+
+static int init_baudrate(void)
+{
+ char baudrate[15];
+ int i = getenv_r("baudrate", baudrate, sizeof(baudrate));
+ gd->bd->bi_baudrate = gd->baudrate = (i > 0)
+ ? simple_strtoul(baudrate, NULL, 10)
+ : CONFIG_BAUDRATE;
+ return 0;
+}
+
+static void display_global_data(void)
+{
+ bd_t *bd;
+
+#ifndef CONFIG_DEBUG_EARLY_SERIAL
+ return;
+#endif
+
+ bd = gd->bd;
+ printf(" gd: %p\n", gd);
+ printf(" |-flags: %lx\n", gd->flags);
+ printf(" |-board_type: %lx\n", gd->board_type);
+ printf(" |-baudrate: %lu\n", gd->baudrate);
+ printf(" |-have_console: %lx\n", gd->have_console);
+ printf(" |-ram_size: %lx\n", gd->ram_size);
+ printf(" |-env_addr: %lx\n", gd->env_addr);
+ printf(" |-env_valid: %lx\n", gd->env_valid);
+ printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
+ printf(" \\-bd: %p\n", gd->bd);
+ printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
+ printf(" |-bi_ip_addr: %lx\n", bd->bi_ip_addr);
+ printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
+ printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
+ printf(" |-bi_memsize: %lx\n", bd->bi_memsize);
+ printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart);
+ printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize);
+ printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
+}
+
+#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
+#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
+void init_cplbtables(void)
+{
+ volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
+ volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
+ uint32_t extern_memory;
+ size_t i;
+
+ void icplb_add(uint32_t addr, uint32_t data)
+ {
+ *(ICPLB_ADDR + i) = addr;
+ *(ICPLB_DATA + i) = data;
+ }
+ void dcplb_add(uint32_t addr, uint32_t data)
+ {
+ *(DCPLB_ADDR + i) = addr;
+ *(DCPLB_DATA + i) = data;
+ }
+
+ /* populate a few common entries ... we'll let
+ * the memory map and cplb exception handler do
+ * the rest of the work.
+ */
+ i = 0;
+ ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
+ ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
+ DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
+ DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
+
+ icplb_add(0xFFA00000, L1_IMEMORY);
+ dcplb_add(0xFF800000, L1_DMEMORY);
+ ++i;
+
+ if (CONFIG_MEM_SIZE) {
+ uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
+ uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
+ mbase &= CPLB_PAGE_MASK;
+ mend &= CPLB_PAGE_MASK;
+
+ icplb_add(mbase, SDRAM_IKERNEL);
+ dcplb_add(mbase, SDRAM_DKERNEL);
+ ++i;
+
+ /*
+ * If the monitor crosses a 4 meg boundary, we'll need
+ * to lock two entries for it. We assume it doesn't
+ * cross two 4 meg boundaries ...
+ */
+ if (mbase != mend) {
+ icplb_add(mend, SDRAM_IKERNEL);
+ dcplb_add(mend, SDRAM_DKERNEL);
+ ++i;
+ }
+ }
+
+ icplb_add(0x20000000, SDRAM_INON_CHBL);
+ dcplb_add(0x20000000, SDRAM_EBIU);
+ ++i;
+
+ /* Add entries for the rest of external RAM up to the bootrom */
+ extern_memory = 0;
+
+#ifdef CONFIG_DEBUG_NULL_PTR
+ icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
+ dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
+ ++i;
+ icplb_add(extern_memory, SDRAM_IKERNEL);
+ dcplb_add(extern_memory, SDRAM_DKERNEL);
+ extern_memory += CPLB_PAGE_SIZE;
+ ++i;
+#endif
+
+ while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
+ icplb_add(extern_memory, SDRAM_IGENERIC);
+ dcplb_add(extern_memory, SDRAM_DGENERIC);
+ extern_memory += CPLB_PAGE_SIZE;
+ ++i;
+ }
+ while (i < 16) {
+ icplb_add(0, 0);
+ dcplb_add(0, 0);
+ ++i;
+ }
+}
+
+/*
+ * 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".
+ */
+
+extern int watchdog_init(void);
+extern int exception_init(void);
+extern int irq_init(void);
+extern int timer_init(void);
+
+void board_init_f(ulong bootflag)
+{
+ ulong addr;
+ bd_t *bd;
+ char buf[32];
+
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+ serial_early_puts("Board early init flash\n");
+ board_early_init_f();
+#endif
+
+ serial_early_puts("Init CPLB tables\n");
+ init_cplbtables();
+
+ serial_early_puts("Exceptions setup\n");
+ exception_init();
+
+#ifndef CONFIG_ICACHE_OFF
+ serial_early_puts("Turn on ICACHE\n");
+ icache_enable();
+#endif
+#ifndef CONFIG_DCACHE_OFF
+ serial_early_puts("Turn on DCACHE\n");
+ dcache_enable();
+#endif
+
+#ifdef CONFIG_WATCHDOG
+ serial_early_puts("Setting up external watchdog\n");
+ watchdog_init();
+#endif
+
+#ifdef DEBUG
+ if (CONFIG_SYS_GBL_DATA_SIZE < sizeof(*gd))
+ hang();
+#endif
+ serial_early_puts("Init global data\n");
+ gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
+ memset((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
+
+ /* Board data initialization */
+ addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
+
+ /* Align to 4 byte boundary */
+ addr &= ~(4 - 1);
+ bd = (bd_t *) addr;
+ gd->bd = bd;
+ memset((void *)bd, 0, sizeof(bd_t));
+
+ bd->bi_r_version = version_string;
+ bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
+ bd->bi_board_name = BFIN_BOARD_NAME;
+ bd->bi_vco = get_vco();
+ bd->bi_cclk = get_cclk();
+ bd->bi_sclk = get_sclk();
+ bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+ bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
+
+ /* Initialize */
+ serial_early_puts("IRQ init\n");
+ irq_init();
+ serial_early_puts("Environment init\n");
+ env_init();
+ serial_early_puts("Baudrate init\n");
+ init_baudrate();
+ serial_early_puts("Serial init\n");
+ serial_init();
+ serial_early_puts("Console init flash\n");
+ console_init_f();
+ serial_early_puts("End of early debugging\n");
+ display_banner();
+
+ checkboard();
+ timer_init();
+
+ printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
+ printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
+ printf("System: %s MHz\n", strmhz(buf, get_sclk()));
+
+ printf("RAM: ");
+ print_size(bd->bi_memsize, "\n");
+#if defined(CONFIG_POST)
+ post_init_f();
+ post_bootmode_init();
+ post_run(NULL, POST_ROM | post_bootmode_get(0));
+#endif
+
+ board_init_r((gd_t *) gd, 0x20000010);
+}
+
+static void board_net_init_r(bd_t *bd)
+{
+#ifdef CONFIG_BITBANGMII
+ bb_miiphy_init();
+#endif
+#ifdef CONFIG_CMD_NET
+ char *s;
+
+ if ((s = getenv("bootfile")) != NULL)
+ copy_filename(BootFile, s, sizeof(BootFile));
+
+ bd->bi_ip_addr = getenv_IPaddr("ipaddr");
+
+ printf("Net: ");
+ eth_initialize(gd->bd);
+#endif
+}
+
+void board_init_r(gd_t * id, ulong dest_addr)
+{
+ char *s;
+ bd_t *bd;
+ gd = id;
+ gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
+ bd = gd->bd;
+
+#if defined(CONFIG_POST)
+ post_output_backlog();
+ post_reloc();
+#endif
+
+ /* initialize malloc() area */
+ mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
+
+#if !defined(CONFIG_SYS_NO_FLASH)
+ /* Initialize the flash and protect u-boot by default */
+ extern flash_info_t flash_info[];
+ puts("Flash: ");
+ ulong size = flash_init();
+ print_size(size, "\n");
+ flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
+ CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
+ &flash_info[0]);
+ bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+ bd->bi_flashsize = size;
+ bd->bi_flashoffset = 0;
+#else
+ bd->bi_flashstart = 0;
+ bd->bi_flashsize = 0;
+ bd->bi_flashoffset = 0;
+#endif
+
+#ifdef CONFIG_CMD_NAND
+ puts("NAND: ");
+ nand_init(); /* go init the NAND */
+#endif
+
+#ifdef CONFIG_GENERIC_MMC
+ puts("MMC: ");
+ mmc_initialize(bd);
+#endif
+
+ /* relocate environment function pointers etc. */
+ env_relocate();
+
+ /* Initialize stdio devices */
+ stdio_init();
+ jumptable_init();
+
+ /* Initialize the console (after the relocation and devices init) */
+ console_init_r();
+
+#ifdef CONFIG_CMD_KGDB
+ puts("KGDB: ");
+ kgdb_init();
+#endif
+
+#ifdef CONFIG_STATUS_LED
+ status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
+ status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
+#endif
+
+ /* Initialize from environment */
+ if ((s = getenv("loadaddr")) != NULL)
+ load_addr = simple_strtoul(s, NULL, 16);
+
+#if defined(CONFIG_MISC_INIT_R)
+ /* miscellaneous platform dependent initialisations */
+ misc_init_r();
+#endif
+
+ board_net_init_r(bd);
+
+ display_global_data();
+
+#if defined(CONFIG_POST)
+ if (post_flag)
+ post_run(NULL, POST_RAM | post_bootmode_get(0));
+#endif
+
+ if (bfin_os_log_check()) {
+ puts("\nLog buffer from operating system:\n");
+ bfin_os_log_dump();
+ puts("\n");
+ }
+
+ /* main_loop() can return to retry autoboot, if so just run it again. */
+ for (;;)
+ main_loop();
+}
+
+void hang(void)
+{
+#ifdef CONFIG_STATUS_LED
+ status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
+ status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
+#endif
+ puts("### ERROR ### Please RESET the board ###\n");
+ while (1)
+ /* If a JTAG emulator is hooked up, we'll automatically trigger
+ * a breakpoint in it. If one isn't, this is just a NOP.
+ */
+ asm("emuexcpt;");
+}