Add generic board support for sandbox. and remove the old board init code.
Select CONFIG_SYS_GENERIC_BOARD for sandbox now that this is supported.
Signed-off-by: Simon Glass sjg@chromium.org --- Changes in v4: - Squash three generic board commits into one
Changes in v3: None Changes in v2: None
arch/sandbox/config.mk | 5 +- arch/sandbox/include/asm/io.h | 5 + arch/sandbox/include/asm/u-boot.h | 22 +-- arch/sandbox/lib/Makefile | 1 - arch/sandbox/lib/board.c | 285 -------------------------------------- board/sandbox/sandbox/sandbox.c | 2 +- common/board_f.c | 51 +++++-- common/board_r.c | 8 +- include/asm-generic/sections.h | 2 +- include/configs/sandbox.h | 7 +- lib/fdtdec.c | 2 +- 11 files changed, 66 insertions(+), 324 deletions(-) delete mode 100644 arch/sandbox/lib/board.c
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk index 4fd0d4e..988b52c 100644 --- a/arch/sandbox/config.mk +++ b/arch/sandbox/config.mk @@ -18,5 +18,8 @@ # MA 02111-1307 USA
PLATFORM_CPPFLAGS += -DCONFIG_SANDBOX -D__SANDBOX__ -U_FORTIFY_SOURCE -PLATFORM_CPPFLAGS += -DCONFIG_ARCH_MAP_SYSMEM +PLATFORM_CPPFLAGS += -DCONFIG_ARCH_MAP_SYSMEM -DCONFIG_SYS_GENERIC_BOARD PLATFORM_LIBS += -lrt + +# Support generic board on sandbox +__HAVE_ARCH_GENERIC_BOARD := y diff --git a/arch/sandbox/include/asm/io.h b/arch/sandbox/include/asm/io.h index 54051a3..0c022f1 100644 --- a/arch/sandbox/include/asm/io.h +++ b/arch/sandbox/include/asm/io.h @@ -20,6 +20,9 @@ * MA 02111-1307 USA */
+#ifndef __SANDBOX_ASM_IO_H +#define __SANDBOX_ASM_IO_H + /* * Given a physical address and a length, return a virtual address * that can be used to access the memory range with the caching @@ -52,3 +55,5 @@ static inline void unmap_sysmem(const void *vaddr)
/* Map from a pointer to our RAM buffer */ phys_addr_t map_to_sysmem(void *ptr); + +#endif diff --git a/arch/sandbox/include/asm/u-boot.h b/arch/sandbox/include/asm/u-boot.h index de8120a..5bea1f2 100644 --- a/arch/sandbox/include/asm/u-boot.h +++ b/arch/sandbox/include/asm/u-boot.h @@ -36,26 +36,8 @@ #ifndef _U_BOOT_H_ #define _U_BOOT_H_ 1
-typedef struct bd_info { - unsigned long bi_memstart; /* start of DRAM memory */ - phys_size_t bi_memsize; /* size of DRAM memory in bytes */ - unsigned long bi_flashstart; /* start of FLASH memory */ - unsigned long bi_flashsize; /* size of FLASH memory */ - unsigned long bi_flashoffset; /* reserved area for startup monitor */ - unsigned long bi_sramstart; /* start of SRAM memory */ - unsigned long bi_sramsize; /* size of SRAM memory */ - unsigned long bi_bootflags; /* boot / reboot flag (for LynxOS) */ - unsigned short bi_ethspeed; /* Ethernet speed in Mbps */ - unsigned long bi_intfreq; /* Internal Freq, in MHz */ - unsigned long bi_busfreq; /* Bus Freq, in MHz */ - unsigned int bi_baudrate; /* Console Baudrate */ - unsigned long bi_boot_params; /* where this board expects params */ - struct /* RAM configuration */ - { - ulong start; - ulong size; - } bi_dram[CONFIG_NR_DRAM_BANKS]; -} bd_t; +/* Use the generic board which requires a unified bd_info */ +#include <asm-generic/u-boot.h>
/* For image.h:image_check_target_arch() */ #define IH_ARCH_DEFAULT IH_ARCH_SANDBOX diff --git a/arch/sandbox/lib/Makefile b/arch/sandbox/lib/Makefile index fbe579b..3aad574 100644 --- a/arch/sandbox/lib/Makefile +++ b/arch/sandbox/lib/Makefile @@ -27,7 +27,6 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(ARCH).o
-COBJS-y += board.o COBJS-y += interrupts.o
SRCS := $(COBJS-y:.o=.c) diff --git a/arch/sandbox/lib/board.c b/arch/sandbox/lib/board.c deleted file mode 100644 index 3752fab..0000000 --- a/arch/sandbox/lib/board.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Copyright (c) 2011 The Chromium OS Authors. - * - * (C) Copyright 2002-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2002 - * 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 - */ - -/* - * This file was taken from ARM and changed to remove things we don't - * need. This is most of it, so have tried to avoid being over-zealous! - * For example, we want to have an emulation of the 'DRAM' used by - * U-Boot. - * - * has been talk upstream of unifying the architectures w.r.t board.c, - * so the less change here the better. - */ - -#include <common.h> -#include <command.h> -#include <malloc.h> -#include <stdio_dev.h> -#include <timestamp.h> -#include <version.h> -#include <serial.h> - -#include <os.h> - -DECLARE_GLOBAL_DATA_PTR; - -static gd_t gd_mem; - -/************************************************************************ - * Init Utilities * - ************************************************************************ - * Some of this code should be moved into the core functions, - * or dropped completely, - * but let's get it working (again) first... - */ - -static int display_banner(void) -{ - display_options(); - - return 0; -} - -/** - * Configure and report on the DRAM configuration, which in our case is - * fairly simple. - */ -static int display_dram_config(void) -{ - ulong size = 0; - int i; - - debug("RAM Configuration:\n"); - - for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { -#ifdef DEBUG - printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); - print_size(gd->bd->bi_dram[i].size, "\n"); -#endif - size += gd->bd->bi_dram[i].size; - } - puts("DRAM: "); - print_size(size, "\n"); - return 0; -} - -/* - * Breathe some life into the board... - * - * Initialize a serial port as console, and carry out some hardware - * tests. - * - * The first part of initialization is running from Flash memory; - * its main purpose is to initialize the RAM so that we - * can relocate the monitor code to RAM. - */ - -/* - * 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 dependent #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". - */ -typedef int (init_fnc_t) (void); - -void __dram_init_banksize(void) -{ - gd->bd->bi_dram[0].start = 0; - gd->bd->bi_dram[0].size = gd->ram_size; -} - -void dram_init_banksize(void) - __attribute__((weak, alias("__dram_init_banksize"))); - -init_fnc_t *init_sequence[] = { -#if defined(CONFIG_ARCH_CPU_INIT) - arch_cpu_init, /* basic arch cpu dependent setup */ -#endif -#if defined(CONFIG_BOARD_EARLY_INIT_F) - board_early_init_f, -#endif - timer_init, /* initialize timer */ - env_init, /* initialize environment */ - serial_init, /* serial communications setup */ - console_init_f, /* stage 1 init of console */ - sandbox_early_getopt_check, /* process command line flags (err/help) */ - display_banner, /* say that we are here */ -#if defined(CONFIG_DISPLAY_CPUINFO) - print_cpuinfo, /* display cpu info (and speed) */ -#endif -#if defined(CONFIG_DISPLAY_BOARDINFO) - checkboard, /* display board info */ -#endif - dram_init, /* configure available RAM banks */ - NULL, -}; - -void board_init_f(ulong bootflag) -{ - init_fnc_t **init_fnc_ptr; - uchar *mem; - unsigned long addr_sp, addr, size; - - gd = &gd_mem; - assert(gd); - - memset((void *)gd, 0, sizeof(gd_t)); - -#if defined(CONFIG_OF_EMBED) - /* Get a pointer to the FDT */ - gd->fdt_blob = _binary_dt_dtb_start; -#elif defined(CONFIG_OF_SEPARATE) - /* FDT is at end of image */ - gd->fdt_blob = (void *)(_end_ofs + _TEXT_BASE); -#endif - - for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { - if ((*init_fnc_ptr)() != 0) - hang(); - } - - size = CONFIG_SYS_SDRAM_SIZE; - mem = os_malloc(CONFIG_SYS_SDRAM_SIZE); - - assert(mem); - gd->arch.ram_buf = mem; - addr = (ulong)(mem + size); - - /* - * reserve memory for malloc() arena - */ - addr_sp = addr - TOTAL_MALLOC_LEN; - debug("Reserving %dk for malloc() at: %08lx\n", - TOTAL_MALLOC_LEN >> 10, addr_sp); - /* - * (permanently) allocate a Board Info struct - * and a permanent copy of the "global" data - */ - addr_sp -= sizeof(bd_t); - gd->bd = (bd_t *) addr_sp; - debug("Reserving %zu Bytes for Board Info at: %08lx\n", - sizeof(bd_t), addr_sp); - - /* Ram ist board specific, so move it to board code ... */ - dram_init_banksize(); - display_dram_config(); /* and display it */ - - /* We don't relocate, so just run the post-relocation code */ - board_init_r(NULL, 0); - - /* NOTREACHED - no way out of command loop except booting */ -} - -/************************************************************************ - * - * This is the next part if the initialization sequence: we are now - * running from RAM and have a "normal" C environment, i. e. global - * data can be written, BSS has been cleared, the stack size in not - * that critical any more, etc. - * - ************************************************************************ - */ - -void board_init_r(gd_t *id, ulong dest_addr) -{ - - if (id) - gd = id; - - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ - - serial_initialize(); - -#ifdef CONFIG_POST - post_output_backlog(); -#endif - - /* The Malloc area is at the top of simulated DRAM */ - mem_malloc_init((ulong)gd->arch.ram_buf + gd->ram_size - - TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN); - - /* initialize environment */ - env_relocate(); - - stdio_init(); /* get the devices list going. */ - - jumptable_init(); - - console_init_r(); /* fully init console as a device */ - -#if defined(CONFIG_DISPLAY_BOARDINFO_LATE) - checkboard(); -#endif - -#if defined(CONFIG_ARCH_MISC_INIT) - /* miscellaneous arch dependent initialisations */ - arch_misc_init(); -#endif -#if defined(CONFIG_MISC_INIT_R) - /* miscellaneous platform dependent initialisations */ - misc_init_r(); -#endif - - /* set up exceptions */ - interrupt_init(); - /* enable exceptions */ - enable_interrupts(); - -#ifdef CONFIG_BOARD_LATE_INIT - board_late_init(); -#endif - -#ifdef CONFIG_POST - post_run(NULL, POST_RAM | post_bootmode_get(0)); -#endif - - sandbox_main_loop_init(); - - /* - * For now, run the main loop. Later we might let this be done - * in the main program. - */ - while (1) - main_loop(); - - /* NOTREACHED - no way out of command loop except booting */ -} - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} diff --git a/board/sandbox/sandbox/sandbox.c b/board/sandbox/sandbox/sandbox.c index 9883013..8bdba92 100644 --- a/board/sandbox/sandbox/sandbox.c +++ b/board/sandbox/sandbox/sandbox.c @@ -56,6 +56,6 @@ int timer_init(void)
int dram_init(void) { - gd->ram_size = CONFIG_DRAM_SIZE; + gd->ram_size = CONFIG_SYS_SDRAM_SIZE; return 0; } diff --git a/common/board_f.c b/common/board_f.c index 00ca811..2045055 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -49,9 +49,11 @@ #include <mpc5xxx.h> #endif
+#include <os.h> #include <post.h> #include <spi.h> #include <watchdog.h> +#include <asm/errno.h> #include <asm/io.h> #ifdef CONFIG_MP #include <asm/mp.h> @@ -61,6 +63,9 @@ #include <asm/init_helpers.h> #include <asm/relocate.h> #endif +#ifdef CONFIG_SANDBOX +#include <asm/state.h> +#endif #include <linux/compiler.h>
/* @@ -155,6 +160,7 @@ static int init_baud_rate(void)
static int display_text_info(void) { +#ifndef CONFIG_SANDBOX ulong bss_start, bss_end;
#ifdef CONFIG_SYS_SYM_OFFSETS @@ -166,6 +172,7 @@ static int display_text_info(void) #endif debug("U-Boot code: %08X -> %08lX BSS: -> %08lX\n", CONFIG_SYS_TEXT_BASE, bss_start, bss_end); +#endif
#ifdef CONFIG_MODEM_SUPPORT debug("Modem Support enabled\n"); @@ -284,6 +291,8 @@ static int setup_mon_len(void) { #ifdef CONFIG_SYS_SYM_OFFSETS gd->mon_len = _bss_end_ofs; +#elif defined(CONFIG_SANDBOX) + gd->mon_len = (ulong)&_end - (ulong)_init; #else /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */ gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE; @@ -296,6 +305,17 @@ __weak int arch_cpu_init(void) return 0; }
+#ifdef CONFIG_SANDBOX +static int setup_ram_buf(void) +{ + gd->arch.ram_buf = os_malloc(CONFIG_SYS_SDRAM_SIZE); + assert(gd->arch.ram_buf); + gd->ram_size = CONFIG_SYS_SDRAM_SIZE; + + return 0; +} +#endif + static int setup_fdt(void) { #ifdef CONFIG_OF_EMBED @@ -470,7 +490,7 @@ static int reserve_malloc(void) static int reserve_board(void) { gd->dest_addr_sp -= sizeof(bd_t); - gd->bd = (bd_t *)gd->dest_addr_sp; + gd->bd = (bd_t *)map_sysmem(gd->dest_addr_sp, sizeof(bd_t)); memset(gd->bd, '\0', sizeof(bd_t)); debug("Reserving %zu Bytes for Board Info at: %08lx\n", sizeof(bd_t), gd->dest_addr_sp); @@ -489,7 +509,7 @@ static int setup_machine(void) static int reserve_global_data(void) { gd->dest_addr_sp -= sizeof(gd_t); - gd->new_gd = (gd_t *)gd->dest_addr_sp; + gd->new_gd = (gd_t *)map_sysmem(gd->dest_addr_sp, sizeof(gd_t)); debug("Reserving %zu Bytes for Global Data at: %08lx\n", sizeof(gd_t), gd->dest_addr_sp); return 0; @@ -506,9 +526,9 @@ static int reserve_fdt(void) gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
gd->dest_addr_sp -= gd->fdt_size; - gd->new_fdt = (void *)gd->dest_addr_sp; - debug("Reserving %lu Bytes for FDT at: %p\n", - gd->fdt_size, gd->new_fdt); + gd->new_fdt = map_sysmem(gd->dest_addr_sp, gd->fdt_size); + debug("Reserving %lu Bytes for FDT at: %08lx\n", + gd->fdt_size, gd->dest_addr_sp); }
return 0; @@ -709,8 +729,9 @@ static int setup_reloc(void) memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
debug("Relocation Offset is: %08lx\n", gd->reloc_off); - debug("Relocating to %08lx, new gd at %p, sp at %08lx\n", - gd->dest_addr, gd->new_gd, gd->dest_addr_sp); + debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n", + gd->dest_addr, (ulong)map_to_sysmem(gd->new_gd), + gd->dest_addr_sp);
return 0; } @@ -736,6 +757,8 @@ static int jump_to_copy(void) * (CPU cache) */ board_init_f_r_trampoline(gd->start_addr_sp); +#elif defined(CONFIG_SANDBOX) + board_init_r(gd->new_gd, 0); #else relocate_code(gd->dest_addr_sp, gd->new_gd, gd->dest_addr); #endif @@ -758,6 +781,9 @@ static init_fnc_t init_sequence_f[] = { !defined(CONFIG_MPC86xx) && !defined(CONFIG_X86) zero_global_data, #endif +#ifdef CONFIG_SANDBOX + setup_ram_buf, +#endif setup_fdt, setup_mon_len, #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) @@ -816,8 +842,11 @@ static init_fnc_t init_sequence_f[] = { init_baud_rate, /* initialze baudrate settings */ serial_init, /* serial communications setup */ console_init_f, /* stage 1 init of console */ -#if defined(CONFIG_X86) && defined(CONFIG_OF_CONTROL) - prepare_fdt, /* TODO(sjg@chromium.org): remove */ +#ifdef CONFIG_SANDBOX + sandbox_early_getopt_check, +#endif +#ifdef CONFIG_OF_CONTROL + fdtdec_prepare_fdt, #endif display_options, /* say that we are here */ display_text_info, /* show debugging info if required */ @@ -1007,5 +1036,9 @@ void board_init_f_r(void) void hang(void) { puts("### ERROR ### Please RESET the board ###\n"); +#ifdef CONFIG_SANDBOX + os_exit(0); +#else for (;;); +#endif } diff --git a/common/board_r.c b/common/board_r.c index 2b17fa6..f801e41 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -136,7 +136,7 @@ static int initr_reloc_global_data(void) { #ifdef CONFIG_SYS_SYM_OFFSETS monitor_flash_len = _end_ofs; -#else +#elif !defined(CONFIG_SANDBOX) monitor_flash_len = (ulong)&__init_end - gd->dest_addr; #endif #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) @@ -264,7 +264,8 @@ static int initr_malloc(void)
/* The malloc area is immediately below the monitor copy in DRAM */ malloc_start = gd->dest_addr - TOTAL_MALLOC_LEN; - mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN); + mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN), + TOTAL_MALLOC_LEN); return 0; }
@@ -691,6 +692,9 @@ static int initr_modem(void)
static int run_main_loop(void) { +#ifdef CONFIG_SANDBOX + sandbox_main_loop_init(); +#endif /* main_loop() can return to retry autoboot, if so just run it again */ for (;;) main_loop(); diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index cca1edb..4b39844 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -29,7 +29,7 @@ extern char _data[], _sdata[], _edata[]; extern char __bss_start[], __bss_stop[]; extern char __init_begin[], __init_end[]; extern char _sinittext[], _einittext[]; -extern char _end[]; +extern char _end[], _init[]; extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[]; extern char __kprobes_text_start[], __kprobes_text_end[]; extern char __entry_text_start[], __entry_text_end[]; diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h index 406da43..da7cc9a 100644 --- a/include/configs/sandbox.h +++ b/include/configs/sandbox.h @@ -22,9 +22,6 @@ #ifndef __CONFIG_H #define __CONFIG_H
-#define CONFIG_NR_DRAM_BANKS 1 -#define CONFIG_DRAM_SIZE (128 << 20) - /* Number of bits in a C 'long' on this architecture */ #define CONFIG_SANDBOX_BITS_PER_LONG 64
@@ -76,7 +73,11 @@ #define CONFIG_PHYS_64BIT
/* Size of our emulated memory */ +#define CONFIG_SYS_SDRAM_BASE 0 #define CONFIG_SYS_SDRAM_SIZE (128 << 20) +#define CONFIG_SYS_TEXT_BASE 0 +#define CONFIG_SYS_MONITOR_BASE 0 +#define CONFIG_NR_DRAM_BANKS 1
#define CONFIG_BAUDRATE 115200 #define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600,\ diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 92fbefe..60369fb 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -357,7 +357,7 @@ int fdtdec_prepare_fdt(void) if (((uintptr_t)gd->fdt_blob & 3) || fdt_check_header(gd->fdt_blob)) { printf("No valid FDT found - please append one to U-Boot " "binary, use u-boot-dtb.bin or define " - "CONFIG_OF_EMBED\n"); + "CONFIG_OF_EMBED. For sandbox, use -d <file.dtb>\n"); return -1; } return 0;