]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - common/board_f.c
common/board_f: factor out reserve_stacks
[karo-tx-uboot.git] / common / board_f.c
index 4ece2b6c9fe34385b5d3dd9b4452f610cf16e708..541ca1a955ae27fac6f6bb15fbd3d863451fa966 100644 (file)
@@ -34,7 +34,7 @@
 #ifdef CONFIG_MPC5xxx
 #include <mpc5xxx.h>
 #endif
-#if (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
+#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 #include <asm/mp.h>
 #endif
 
@@ -111,7 +111,7 @@ static int init_func_watchdog_init(void)
 {
 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
        defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
-       defined(CONFIG_SH))
+       defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG))
        hw_watchdog_init();
 # endif
        puts("       Watchdog enabled\n");
@@ -128,14 +128,11 @@ int init_func_watchdog_reset(void)
 }
 #endif /* CONFIG_WATCHDOG */
 
-void __board_add_ram_info(int use_default)
+__weak void board_add_ram_info(int use_default)
 {
        /* please define platform specific board_add_ram_info() */
 }
 
-void board_add_ram_info(int)
-       __attribute__ ((weak, alias("__board_add_ram_info")));
-
 static int init_baud_rate(void)
 {
        gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
@@ -145,17 +142,19 @@ static int init_baud_rate(void)
 static int display_text_info(void)
 {
 #ifndef CONFIG_SANDBOX
-       ulong bss_start, bss_end;
+       ulong bss_start, bss_end, text_base;
 
        bss_start = (ulong)&__bss_start;
        bss_end = (ulong)&__bss_end;
 
-       debug("U-Boot code: %08X -> %08lX  BSS: -> %08lX\n",
 #ifdef CONFIG_SYS_TEXT_BASE
-             CONFIG_SYS_TEXT_BASE, bss_start, bss_end);
+       text_base = CONFIG_SYS_TEXT_BASE;
 #else
-             CONFIG_SYS_MONITOR_BASE, bss_start, bss_end);
+       text_base = CONFIG_SYS_MONITOR_BASE;
 #endif
+
+       debug("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
+               text_base, bss_start, bss_end);
 #endif
 
 #ifdef CONFIG_MODEM_SUPPORT
@@ -221,7 +220,7 @@ static int show_dram_config(void)
        return 0;
 }
 
-void __dram_init_banksize(void)
+__weak void dram_init_banksize(void)
 {
 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
        gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
@@ -229,9 +228,6 @@ void __dram_init_banksize(void)
 #endif
 }
 
-void dram_init_banksize(void)
-       __attribute__((weak, alias("__dram_init_banksize")));
-
 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 static int init_func_i2c(void)
 {
@@ -266,7 +262,7 @@ static int zero_global_data(void)
 
 static int setup_mon_len(void)
 {
-#ifdef __ARM__
+#if defined(__ARM__) || defined(__MICROBLAZE__)
        gd->mon_len = (ulong)&__bss_end - (ulong)_start;
 #elif defined(CONFIG_SANDBOX)
        gd->mon_len = (ulong)&_end - (ulong)_init;
@@ -284,6 +280,11 @@ __weak int arch_cpu_init(void)
        return 0;
 }
 
+__weak unsigned long get_timer_masked(void)
+{
+       return get_timer(0);
+}
+
 #ifdef CONFIG_OF_HOSTFILE
 
 static int read_fdt_from_file(void)
@@ -291,7 +292,7 @@ static int read_fdt_from_file(void)
        struct sandbox_state *state = state_get_current();
        const char *fname = state->fdt_fname;
        void *blob;
-       ssize_t size;
+       loff_t size;
        int err;
        int fd;
 
@@ -304,10 +305,10 @@ static int read_fdt_from_file(void)
                return -EINVAL;
        }
 
-       size = os_get_filesize(fname);
-       if (size < 0) {
+       err = os_get_filesize(fname, &size);
+       if (err < 0) {
                printf("Failed to file FDT file '%s'\n", fname);
-               return -ENOENT;
+               return err;
        }
        fd = os_open(fname, OS_O_RDONLY);
        if (fd < 0) {
@@ -341,21 +342,23 @@ static int setup_ram_buf(void)
 
 static int setup_fdt(void)
 {
-#ifdef CONFIG_OF_EMBED
+#ifdef CONFIG_OF_CONTROL
+# ifdef CONFIG_OF_EMBED
        /* Get a pointer to the FDT */
        gd->fdt_blob = __dtb_dt_begin;
-#elif defined CONFIG_OF_SEPARATE
+# elif defined CONFIG_OF_SEPARATE
        /* FDT is at end of image */
        gd->fdt_blob = (ulong *)&_end;
-#elif defined(CONFIG_OF_HOSTFILE)
+# elif defined(CONFIG_OF_HOSTFILE)
        if (read_fdt_from_file()) {
                puts("Failed to read control FDT\n");
                return -1;
        }
-#endif
+# endif
        /* Allow the early environment to override the fdt address */
        gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
                                                (uintptr_t)gd->fdt_blob);
+#endif
        return 0;
 }
 
@@ -392,7 +395,7 @@ static int setup_dest_addr(void)
        gd->ram_top = board_get_usable_ram_top(gd->mon_len);
        gd->relocaddr = gd->ram_top;
        debug("Ram top: %08lX\n", (ulong)gd->ram_top);
-#if (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
+#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
        /*
         * We need to make sure the location we intend to put secondary core
         * boot code is reserved and not used by any part of u-boot
@@ -575,48 +578,22 @@ static int reserve_fdt(void)
        return 0;
 }
 
-static int reserve_stacks(void)
+int arch_reserve_stacks(void)
 {
-#ifdef CONFIG_SPL_BUILD
-# ifdef CONFIG_ARM
-       gd->start_addr_sp -= 128;       /* leave 32 words for abort-stack */
-       gd->irq_sp = gd->start_addr_sp;
-# endif
-#else
-# ifdef CONFIG_PPC
-       ulong *s;
-# endif
+       return 0;
+}
 
-       /* setup stack pointer for exceptions */
+static int reserve_stacks(void)
+{
+       /* make stack pointer 16-byte aligned */
        gd->start_addr_sp -= 16;
        gd->start_addr_sp &= ~0xf;
-       gd->irq_sp = gd->start_addr_sp;
 
        /*
-        * Handle architecture-specific things here
-        * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
-        * to handle this and put in arch/xxx/lib/stack.c
+        * let the architecture specific code tailor gd->start_addr_sp and
+        * gd->irq_sp
         */
-# if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
-#  ifdef CONFIG_USE_IRQ
-       gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
-       debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
-               CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
-
-       /* 8-byte alignment for ARM ABI compliance */
-       gd->start_addr_sp &= ~0x07;
-#  endif
-       /* leave 3 words for abort-stack, plus 1 for alignment */
-       gd->start_addr_sp -= 16;
-# elif defined(CONFIG_PPC)
-       /* Clear initial stack frame */
-       s = (ulong *) gd->start_addr_sp;
-       *s = 0; /* Terminate back chain */
-       *++s = 0; /* NULL return address */
-# endif /* Architecture specific code */
-
-       return 0;
-#endif
+       return arch_reserve_stacks();
 }
 
 static int display_new_sp(void)
@@ -736,7 +713,11 @@ static int reloc_fdt(void)
 static int setup_reloc(void)
 {
 #ifdef CONFIG_SYS_TEXT_BASE
+#ifndef CONFIG_ARM
        gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
+#else
+       gd->reloc_off = gd->relocaddr - (unsigned long)__image_copy_start;
+#endif
 #endif
        memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
 
@@ -809,28 +790,32 @@ static int initf_dm(void)
        return 0;
 }
 
+/* Architecture-specific memory reservation */
+__weak int reserve_arch(void)
+{
+       return 0;
+}
+
 static init_fnc_t init_sequence_f[] = {
 #ifdef CONFIG_SANDBOX
        setup_ram_buf,
 #endif
        setup_mon_len,
        setup_fdt,
+#ifdef CONFIG_TRACE
        trace_early_init,
+#endif
+       initf_malloc,
 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
        /* TODO: can this go into arch_cpu_init()? */
        probecpu,
 #endif
        arch_cpu_init,          /* basic arch cpu dependent setup */
-#ifdef CONFIG_X86
-       cpu_init_f,             /* TODO(sjg@chromium.org): remove */
-# ifdef CONFIG_OF_CONTROL
-       find_fdt,               /* TODO(sjg@chromium.org): remove */
-# endif
-#endif
        mark_bootstage,
 #ifdef CONFIG_OF_CONTROL
        fdtdec_check_fdt,
 #endif
+       initf_dm,
 #if defined(CONFIG_BOARD_EARLY_INIT_F)
        board_early_init_f,
 #endif
@@ -866,8 +851,6 @@ static init_fnc_t init_sequence_f[] = {
        sdram_adjust_866,
        init_timebase,
 #endif
-       initf_malloc,
-       initf_dm,
        init_baud_rate,         /* initialze baudrate settings */
        serial_init,            /* serial communications setup */
        console_init_f,         /* stage 1 init of console */
@@ -894,7 +877,7 @@ static init_fnc_t init_sequence_f[] = {
        prt_mpc5xxx_clks,
 #endif /* CONFIG_MPC5xxx */
 #if defined(CONFIG_DISPLAY_BOARDINFO)
-       checkboard,             /* display board info */
+       show_board_info,
 #endif
        INIT_FUNC_WATCHDOG_INIT
 #if defined(CONFIG_MISC_INIT_F)
@@ -906,14 +889,10 @@ static init_fnc_t init_sequence_f[] = {
 #endif
 #if defined(CONFIG_HARD_SPI)
        init_func_spi,
-#endif
-#ifdef CONFIG_X86
-       dram_init_f,            /* configure available RAM banks */
-       calculate_relocation_address,
 #endif
        announce_dram_init,
        /* TODO: unify all these dram functions? */
-#ifdef CONFIG_ARM
+#if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE)
        dram_init,              /* configure available RAM banks */
 #endif
 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
@@ -980,6 +959,7 @@ static init_fnc_t init_sequence_f[] = {
        setup_machine,
        reserve_global_data,
        reserve_fdt,
+       reserve_arch,
        reserve_stacks,
        setup_dram_config,
        show_dram_config,
@@ -995,6 +975,11 @@ static init_fnc_t init_sequence_f[] = {
        INIT_FUNC_WATCHDOG_RESET
        reloc_fdt,
        setup_reloc,
+#ifdef CONFIG_X86
+       copy_uboot_to_ram,
+       clear_bss,
+       do_elf_reloc_fixups,
+#endif
 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
        jump_to_copy,
 #endif
@@ -1054,9 +1039,6 @@ void board_init_f(ulong boot_flags)
  */
 static init_fnc_t init_sequence_f_r[] = {
        init_cache_f_r,
-       copy_uboot_to_ram,
-       clear_bss,
-       do_elf_reloc_fixups,
 
        NULL,
 };
@@ -1076,4 +1058,22 @@ void board_init_f_r(void)
        /* NOTREACHED - board_init_r() does not return */
        hang();
 }
+#else
+ulong board_init_f_mem(ulong top)
+{
+       /* Leave space for the stack we are running with now */
+       top -= 0x40;
+
+       top -= sizeof(struct global_data);
+       top = ALIGN(top, 16);
+       gd = (struct global_data *)top;
+       memset((void *)gd, '\0', sizeof(*gd));
+
+#ifdef CONFIG_SYS_MALLOC_F_LEN
+       top -= CONFIG_SYS_MALLOC_F_LEN;
+       gd->malloc_base = top;
+#endif
+
+       return top;
+}
 #endif /* CONFIG_X86 */