diff options
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/config.mk | 3 | ||||
| -rw-r--r-- | arch/blackfin/cpu/cpu.c | 334 | ||||
| -rw-r--r-- | arch/blackfin/cpu/start.S | 14 | ||||
| -rw-r--r-- | arch/blackfin/cpu/u-boot.lds | 4 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/config.h | 4 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/u-boot.h | 3 | ||||
| -rw-r--r-- | arch/blackfin/lib/Makefile | 7 | ||||
| -rw-r--r-- | arch/blackfin/lib/board.c | 443 | ||||
| -rw-r--r-- | arch/blackfin/lib/sections.c | 11 |
9 files changed, 335 insertions, 488 deletions
diff --git a/arch/blackfin/config.mk b/arch/blackfin/config.mk index 7b17b75..584b38b 100644 --- a/arch/blackfin/config.mk +++ b/arch/blackfin/config.mk @@ -20,6 +20,9 @@ CONFIG_BFIN_CPU := $(strip $(CONFIG_BFIN_CPU:"%"=%)) endif CONFIG_BFIN_BOOT_MODE := $(strip $(CONFIG_BFIN_BOOT_MODE:"%"=%)) +# Support generic board on Blackfin +__HAVE_ARCH_GENERIC_BOARD := y + PLATFORM_RELFLAGS += -ffixed-P3 -fomit-frame-pointer -mno-fdpic LDFLAGS_FINAL += --gc-sections diff --git a/arch/blackfin/cpu/cpu.c b/arch/blackfin/cpu/cpu.c index 2409c30..b7f1188 100644 --- a/arch/blackfin/cpu/cpu.c +++ b/arch/blackfin/cpu/cpu.c @@ -11,17 +11,22 @@ #include <common.h> #include <command.h> +#include <serial.h> +#include <version.h> +#include <i2c.h> + #include <asm/blackfin.h> #include <asm/cplb.h> +#include <asm/clock.h> #include <asm/mach-common/bits/core.h> #include <asm/mach-common/bits/ebiu.h> #include <asm/mach-common/bits/trace.h> -#include <asm/serial.h> #include "cpu.h" #include "initcode.h" ulong bfin_poweron_retx; +DECLARE_GLOBAL_DATA_PTR; #if defined(CONFIG_CORE1_RUN) && defined(COREB_L1_CODE_START) void bfin_core1_start(void) @@ -48,6 +53,252 @@ void bfin_core1_start(void) } #endif +__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 global_board_data_init(void) +{ +#ifndef CONFIG_SYS_GBL_DATA_ADDR +# define CONFIG_SYS_GBL_DATA_ADDR 0 +#endif +#ifndef CONFIG_SYS_BD_INFO_ADDR +# define CONFIG_SYS_BD_INFO_ADDR 0 +#endif + + bd_t *bd; + + if (CONFIG_SYS_GBL_DATA_ADDR) { + gd = (gd_t *)(CONFIG_SYS_GBL_DATA_ADDR); + memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE); + } else { + static gd_t _bfin_gd; + gd = &_bfin_gd; + } + if (CONFIG_SYS_BD_INFO_ADDR) { + bd = (bd_t *)(CONFIG_SYS_BD_INFO_ADDR); + memset(bd, 0, GENERATED_BD_INFO_SIZE); + } else { + static bd_t _bfin_bd; + bd = &_bfin_bd; + } + + gd->bd = bd; + + bd->bi_r_version = version_string; + bd->bi_cpu = __stringify(CONFIG_BFIN_CPU); + bd->bi_board_name = CONFIG_SYS_BOARD; + 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; + + gd->ram_size = CONFIG_SYS_MAX_RAM_SIZE; + + 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->arch.board_type); + printf(" |-baudrate: %u\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_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)) +#if defined(__ADSPBF60x__) +#define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024) +#define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1)) +#else +#define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE +#define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK +#endif +void init_cplbtables(void) +{ + uint32_t *ICPLB_ADDR, *ICPLB_DATA; + uint32_t *DCPLB_ADDR, *DCPLB_DATA; + uint32_t extern_memory; + size_t i; + + void icplb_add(uint32_t addr, uint32_t data) + { + bfin_write32(ICPLB_ADDR + i, addr); + bfin_write32(ICPLB_DATA + i, data); + } + void dcplb_add(uint32_t addr, uint32_t data) + { + bfin_write32(DCPLB_ADDR + i, addr); + bfin_write32(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 defined(__ADSPBF60x__) + icplb_add(0x0, 0x0); + dcplb_add(CONFIG_SYS_FLASH_BASE, PAGE_SIZE_16MB | CPLB_DIRTY | + CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID); + ++i; +#endif + + if (CONFIG_MEM_SIZE) { + uint32_t mbase = CONFIG_SYS_MONITOR_BASE; + uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN - 1; + 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; + } + } + +#ifndef __ADSPBF60x__ + icplb_add(0x20000000, SDRAM_INON_CHBL); + dcplb_add(0x20000000, SDRAM_EBIU); + ++i; +#endif + + /* 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_EX_PAGE_MASK)) { + icplb_add(extern_memory, SDRAM_IGENERIC); + dcplb_add(extern_memory, SDRAM_DGENERIC); + extern_memory += CPLB_EX_PAGE_SIZE; + ++i; + } + while (i < 16) { + icplb_add(0, 0); + dcplb_add(0, 0); + ++i; + } +} + +int print_cpuinfo(void) +{ + char buf[32]; + + printf("CPU: ADSP %s (Detected Rev: 0.%d) (%s boot)\n", + gd->bd->bi_cpu, + bfin_revid(), + get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE)); + + printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco())); + printf("Core: %s MHz, ", strmhz(buf, get_cclk())); +#if defined(__ADSPBF60x__) + printf("System0: %s MHz, ", strmhz(buf, get_sclk0())); + printf("System1: %s MHz, ", strmhz(buf, get_sclk1())); + printf("Dclk: %s MHz\n", strmhz(buf, get_dclk())); +#else + printf("System: %s MHz\n", strmhz(buf, get_sclk())); +#endif + + return 0; +} + +int exception_init(void) +{ + bfin_write_EVT3(trap); + return 0; +} + +int irq_init(void) +{ +#ifdef SIC_IMASK0 + bfin_write_SIC_IMASK0(0); + bfin_write_SIC_IMASK1(0); +# ifdef SIC_IMASK2 + bfin_write_SIC_IMASK2(0); +# endif +#elif defined(SICA_IMASK0) + bfin_write_SICA_IMASK0(0); + bfin_write_SICA_IMASK1(0); +#elif defined(SIC_IMASK) + bfin_write_SIC_IMASK(0); +#endif + /* Set up a dummy NMI handler if needed. */ + if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_BYPASS || ANOMALY_05000219) + bfin_write_EVT2(evt_nmi); /* NMI */ + bfin_write_EVT5(evt_default); /* hardware error */ + bfin_write_EVT6(evt_default); /* core timer */ + bfin_write_EVT7(evt_default); + bfin_write_EVT8(evt_default); + bfin_write_EVT9(evt_default); + bfin_write_EVT10(evt_default); + bfin_write_EVT11(evt_default); + bfin_write_EVT12(evt_default); + bfin_write_EVT13(evt_default); + bfin_write_EVT14(evt_default); + bfin_write_EVT15(evt_default); + bfin_write_ILAT(0); + CSYNC(); + /* enable hardware error irq */ + irq_flags = 0x3f; + local_irq_enable(); + return 0; +} + __attribute__ ((__noreturn__)) void cpu_init_f(ulong bootflag, ulong loaded_from_ldr) { @@ -102,51 +353,62 @@ void cpu_init_f(ulong bootflag, ulong loaded_from_ldr) bfin_core1_start(); #endif - serial_early_puts("Board init flash\n"); - board_init_f(bootflag); + serial_early_puts("Init global data\n"); + global_board_data_init(); + + board_init_f(0); /* should not be reached */ while (1); } -int exception_init(void) +int arch_cpu_init(void) { - bfin_write_EVT3(trap); + 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 DEBUG + if (GENERATED_GBL_DATA_SIZE < sizeof(*gd)) + hang(); +#endif + + /* Initialize */ + serial_early_puts("IRQ init\n"); + irq_init(); + return 0; } -int irq_init(void) +int arch_misc_init(void) { -#ifdef SIC_IMASK0 - bfin_write_SIC_IMASK0(0); - bfin_write_SIC_IMASK1(0); -# ifdef SIC_IMASK2 - bfin_write_SIC_IMASK2(0); -# endif -#elif defined(SICA_IMASK0) - bfin_write_SICA_IMASK0(0); - bfin_write_SICA_IMASK1(0); -#elif defined(SIC_IMASK) - bfin_write_SIC_IMASK(0); +#if defined(CONFIG_SYS_I2C) + i2c_reloc_fixup(); #endif - /* Set up a dummy NMI handler if needed. */ - if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_BYPASS || ANOMALY_05000219) - bfin_write_EVT2(evt_nmi); /* NMI */ - bfin_write_EVT5(evt_default); /* hardware error */ - bfin_write_EVT6(evt_default); /* core timer */ - bfin_write_EVT7(evt_default); - bfin_write_EVT8(evt_default); - bfin_write_EVT9(evt_default); - bfin_write_EVT10(evt_default); - bfin_write_EVT11(evt_default); - bfin_write_EVT12(evt_default); - bfin_write_EVT13(evt_default); - bfin_write_EVT14(evt_default); - bfin_write_EVT15(evt_default); - bfin_write_ILAT(0); - CSYNC(); - /* enable hardware error irq */ - irq_flags = 0x3f; - local_irq_enable(); + + display_global_data(); + + if (CONFIG_MEM_SIZE && bfin_os_log_check()) { + puts("\nLog buffer from operating system:\n"); + bfin_os_log_dump(); + puts("\n"); + } + + return 0; +} + +int interrupt_init(void) +{ return 0; } diff --git a/arch/blackfin/cpu/start.S b/arch/blackfin/cpu/start.S index 29a7c23..f31abfa 100644 --- a/arch/blackfin/cpu/start.S +++ b/arch/blackfin/cpu/start.S @@ -196,8 +196,8 @@ ENTRY(_start) * takes care of clearing things for us. */ serial_early_puts("Zero BSS"); - r0.l = __bss_vma; - r0.h = __bss_vma; + r0.l = __bss_start; + r0.h = __bss_start; r1 = 0 (x); r2.l = __bss_len; r2.h = __bss_len; @@ -251,3 +251,13 @@ LENTRY(_get_pc) #endif rts; ENDPROC(_get_pc) + +ENTRY(_relocate_code) + /* Fake relocate code. Setup the new stack only */ + sp = r0; + fp = sp; + r0 = p3; + r1.h = 0x2000; + r1.l = 0x10; + jump.l _board_init_r +ENDPROC(_relocate_code) diff --git a/arch/blackfin/cpu/u-boot.lds b/arch/blackfin/cpu/u-boot.lds index 7f0411f..ae1b813 100644 --- a/arch/blackfin/cpu/u-boot.lds +++ b/arch/blackfin/cpu/u-boot.lds @@ -135,6 +135,8 @@ SECTIONS *(COMMON) . = ALIGN(4); } >ram_data - __bss_vma = ADDR(.bss); + __bss_end = .; + __bss_start = ADDR(.bss); __bss_len = SIZEOF(.bss); + __init_end = .; } diff --git a/arch/blackfin/include/asm/config.h b/arch/blackfin/include/asm/config.h index 1da386e..836658a 100644 --- a/arch/blackfin/include/asm/config.h +++ b/arch/blackfin/include/asm/config.h @@ -174,4 +174,8 @@ } #endif +#define CONFIG_SYS_GENERIC_BOARD +#define CONFIG_DISPLAY_CPUINFO +#define CONFIG_ARCH_MISC_INIT + #endif diff --git a/arch/blackfin/include/asm/u-boot.h b/arch/blackfin/include/asm/u-boot.h index acaeee9..7b5cf6a 100644 --- a/arch/blackfin/include/asm/u-boot.h +++ b/arch/blackfin/include/asm/u-boot.h @@ -25,9 +25,12 @@ typedef struct bd_info { unsigned long bi_vco; unsigned long bi_cclk; unsigned long bi_sclk; + unsigned char bi_enetaddr[6]; } bd_t; /* For image.h:image_check_target_arch() */ #define IH_ARCH_DEFAULT IH_ARCH_BLACKFIN +int arch_misc_init(void); + #endif /* _U_BOOT_H_ */ diff --git a/arch/blackfin/lib/Makefile b/arch/blackfin/lib/Makefile index 4ba7bf6..b534a98 100644 --- a/arch/blackfin/lib/Makefile +++ b/arch/blackfin/lib/Makefile @@ -9,11 +9,6 @@ # SPDX-License-Identifier: GPL-2.0+ # -# Unnecessary. -# Use CONFIG_SYS_BOARD instead of BFIN_BOARD_NAME -# and delete this. -ccflags-y += -DBFIN_BOARD_NAME='"$(BOARD)"' - obj-y += ins.o obj-y += memcmp.o obj-y += memcpy.o @@ -21,7 +16,6 @@ obj-y += memmove.o obj-y += memset.o obj-y += outs.o obj-$(CONFIG_CMD_KGDB) += __kgdb.o -obj-y += board.o obj-y += boot.o obj-y += cache.o obj-y += clocks.o @@ -30,3 +24,4 @@ obj-$(CONFIG_CMD_KGDB) += kgdb.o obj-y += muldi3.o obj-$(CONFIG_HAS_POST) += post.o obj-y += string.o +obj-y += sections.o diff --git a/arch/blackfin/lib/board.c b/arch/blackfin/lib/board.c deleted file mode 100644 index 8784255..0000000 --- a/arch/blackfin/lib/board.c +++ /dev/null @@ -1,443 +0,0 @@ -/* - * 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 <serial.h> -#include <environment.h> -#include <malloc.h> -#include <mmc.h> -#include <net.h> -#include <status_led.h> -#include <version.h> -#include <watchdog.h> - -#include <asm/cplb.h> -#include <asm/mach-common/bits/mpu.h> -#include <asm/clock.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 - -#if defined(CONFIG_SYS_I2C) -#include <i2c.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -__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) -{ - display_options(); - printf("CPU: ADSP %s " - "(Detected Rev: 0.%d) " - "(%s boot)\n", - gd->bd->bi_cpu, - bfin_revid(), - get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE)); - return 0; -} - -static int init_baudrate(void) -{ - gd->baudrate = getenv_ulong("baudrate", 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->arch.board_type); - printf(" |-baudrate: %u\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_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)) -#if defined(__ADSPBF60x__) -#define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024) -#define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1)) -#else -#define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE -#define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK -#endif -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 defined(__ADSPBF60x__) - icplb_add(0x0, 0x0); - dcplb_add(CONFIG_SYS_FLASH_BASE, PAGE_SIZE_16MB | CPLB_DIRTY | - CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID); - ++i; -#endif - - 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; - } - } - -#ifndef __ADSPBF60x__ - icplb_add(0x20000000, SDRAM_INON_CHBL); - dcplb_add(0x20000000, SDRAM_EBIU); - ++i; -#endif - - /* 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_EX_PAGE_MASK)) { - icplb_add(extern_memory, SDRAM_IGENERIC); - dcplb_add(extern_memory, SDRAM_DGENERIC); - extern_memory += CPLB_EX_PAGE_SIZE; - ++i; - } - while (i < 16) { - icplb_add(0, 0); - dcplb_add(0, 0); - ++i; - } -} - -static int global_board_data_init(void) -{ -#ifndef CONFIG_SYS_GBL_DATA_ADDR -# define CONFIG_SYS_GBL_DATA_ADDR 0 -#endif -#ifndef CONFIG_SYS_BD_INFO_ADDR -# define CONFIG_SYS_BD_INFO_ADDR 0 -#endif - - bd_t *bd; - - if (CONFIG_SYS_GBL_DATA_ADDR) { - gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR); - memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE); - } else { - static gd_t _bfin_gd; - gd = &_bfin_gd; - } - - if (CONFIG_SYS_BD_INFO_ADDR) { - bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR); - memset(bd, 0, GENERATED_BD_INFO_SIZE); - } else { - static bd_t _bfin_bd; - bd = &_bfin_bd; - } - gd->bd = bd; - - bd->bi_r_version = version_string; - bd->bi_cpu = __stringify(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; - - return 0; -} - -/* - * 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) -{ - 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_HW_WATCHDOG - serial_early_puts("Setting up external watchdog\n"); - hw_watchdog_init(); -#endif - -#ifdef DEBUG - if (GENERATED_GBL_DATA_SIZE < sizeof(*gd)) - hang(); -#endif - serial_early_puts("Init global data\n"); - - global_board_data_init(); - - /* 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_initialize(); - 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())); -#if defined(__ADSPBF60x__) - printf("System0: %s MHz, ", strmhz(buf, get_sclk0())); - printf("System1: %s MHz, ", strmhz(buf, get_sclk1())); - printf("Dclk: %s MHz\n", strmhz(buf, get_dclk())); -#else - printf("System: %s MHz\n", strmhz(buf, get_sclk())); -#endif - - if (CONFIG_MEM_SIZE) { - printf("RAM: "); - print_size(gd->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 - printf("Net: "); - eth_initialize(bd); -#endif -} - -void board_init_r(gd_t * id, ulong dest_addr) -{ - bd_t *bd; - gd = id; - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ - bd = gd->bd; - -#if defined(CONFIG_POST) - post_output_backlog(); -#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 - -#if defined(CONFIG_SYS_I2C) - i2c_reloc_fixup(); -#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 */ - load_addr = getenv_ulong("loadaddr", 16, load_addr); - -#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 (CONFIG_MEM_SIZE && 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(); -} diff --git a/arch/blackfin/lib/sections.c b/arch/blackfin/lib/sections.c new file mode 100644 index 0000000..b50f30a --- /dev/null +++ b/arch/blackfin/lib/sections.c @@ -0,0 +1,11 @@ +/* + * U-boot - section.c + * + * Copyright (c) 2014 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +char __bss_start[0] __attribute__((section(".__bss_start"))); +char __bss_end[0] __attribute__((section(".__bss_end"))); +char __init_end[0] __attribute__((section(".__init_end"))); |