blackfin: convert blackfin board_f and board_r to use generic board init functions

- move blackfin specific cpu init code from blackfin board.c to cpu.c
- remove blackfin specific board init code and invoke generic board_f fron cpu init entry
- rename section name bss_vma to bss_start in order to match the generic board init code
- add a fake relocate_code function to set up the new stack only

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>

3 files changed, 12 insertions, 449 deletions

diff --git a/arch/blackfin/lib/Makefile b/arch/blackfin/lib/Makefile
index 4ba7bf6949..b534a98c9c 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 87842557df..0000000000
--- 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 0000000000..b50f30aa45
--- /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")));