This commit refactors common/board_f.c and common/board_r.c in order to delete the dest_addr and dest_addr_sp from gd_t struct.

As mentioned as follows in include/asm-generic/global_data.h,

/* TODO: is this the same as relocaddr, or something else? */ unsigned long dest_addr; /* Post-relocation address of U-Boot */

dest_addr is the same as relocaddr. Likewise, dest_addr_sp is the same as start_addr_sp.

It seemed dest_addr/dest_addr_sp was used only as a scratch variable to calculate relocaddr/start_addr_sp, respectively.

With a little refactoring, we can delete dest_addr and dest_addr_sp.

Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com Cc: Simon Glass sjg@chromium.org --- common/board_f.c | 98 ++++++++++++++++++------------------- common/board_r.c | 12 ++--- include/asm-generic/global_data.h | 3 -- 3 files changed, 55 insertions(+), 58 deletions(-)

diff --git a/common/board_f.c b/common/board_f.c index 81edbdf..758a11a 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -421,19 +421,18 @@ static int setup_dest_addr(void) #endif gd->ram_top += get_effective_memsize(); gd->ram_top = board_get_usable_ram_top(gd->mon_len); - gd->dest_addr = gd->ram_top; + gd->relocaddr = gd->ram_top; debug("Ram top: %08lX\n", (ulong)gd->ram_top); #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 */ - if (gd->dest_addr > determine_mp_bootpg(NULL)) { - gd->dest_addr = determine_mp_bootpg(NULL); - debug("Reserving MP boot page to %08lx\n", gd->dest_addr); + if (gd->relocaddr > determine_mp_bootpg(NULL)) { + gd->relocaddr = determine_mp_bootpg(NULL); + debug("Reserving MP boot page to %08lx\n", gd->relocaddr); } #endif - gd->dest_addr_sp = gd->dest_addr; return 0; }

@@ -441,9 +440,9 @@ static int setup_dest_addr(void) static int reserve_logbuffer(void) { /* reserve kernel log buffer */ - gd->dest_addr -= LOGBUFF_RESERVE; + gd->relocaddr -= LOGBUFF_RESERVE; debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, - gd->dest_addr); + gd->relocaddr); return 0; } #endif @@ -455,9 +454,9 @@ static int reserve_pram(void) ulong reg;

reg = getenv_ulong("pram", 10, CONFIG_PRAM); - gd->dest_addr -= (reg << 10); /* size is in kB */ + gd->relocaddr -= (reg << 10); /* size is in kB */ debug("Reserving %ldk for protected RAM at %08lx\n", reg, - gd->dest_addr); + gd->relocaddr); return 0; } #endif /* CONFIG_PRAM */ @@ -465,7 +464,7 @@ static int reserve_pram(void) /* Round memory pointer down to next 4 kB limit */ static int reserve_round_4k(void) { - gd->dest_addr &= ~(4096 - 1); + gd->relocaddr &= ~(4096 - 1); return 0; }

@@ -475,12 +474,12 @@ static int reserve_mmu(void) { /* reserve TLB table */ gd->arch.tlb_size = 4096 * 4; - gd->dest_addr -= gd->arch.tlb_size; + gd->relocaddr -= gd->arch.tlb_size;

/* round down to next 64 kB limit */ - gd->dest_addr &= ~(0x10000 - 1); + gd->relocaddr &= ~(0x10000 - 1);

- gd->arch.tlb_addr = gd->dest_addr; + gd->arch.tlb_addr = gd->relocaddr; debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, gd->arch.tlb_addr + gd->arch.tlb_size); return 0; @@ -494,8 +493,8 @@ static int reserve_lcd(void) gd->fb_base = CONFIG_FB_ADDR; #else /* reserve memory for LCD display (always full pages) */ - gd->dest_addr = lcd_setmem(gd->dest_addr); - gd->fb_base = gd->dest_addr; + gd->relocaddr = lcd_setmem(gd->relocaddr); + gd->fb_base = gd->relocaddr; #endif /* CONFIG_FB_ADDR */ return 0; } @@ -506,8 +505,8 @@ static int reserve_lcd(void) static int reserve_video(void) { /* reserve memory for video display (always full pages) */ - gd->dest_addr = video_setmem(gd->dest_addr); - gd->fb_base = gd->dest_addr; + gd->relocaddr = video_setmem(gd->relocaddr); + gd->fb_base = gd->relocaddr;

return 0; } @@ -519,15 +518,18 @@ static int reserve_uboot(void) * reserve memory for U-Boot code, data & bss * round down to next 4 kB limit */ - gd->dest_addr -= gd->mon_len; - gd->dest_addr &= ~(4096 - 1); + gd->relocaddr -= gd->mon_len; + gd->relocaddr &= ~(4096 - 1); #ifdef CONFIG_E500 /* round down to next 64 kB limit so that IVPR stays aligned */ - gd->dest_addr &= ~(65536 - 1); + gd->relocaddr &= ~(65536 - 1); #endif

debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, - gd->dest_addr); + gd->relocaddr); + + gd->start_addr_sp = gd->relocaddr; + return 0; }

@@ -535,20 +537,20 @@ static int reserve_uboot(void) /* reserve memory for malloc() area */ static int reserve_malloc(void) { - gd->dest_addr_sp = gd->dest_addr - TOTAL_MALLOC_LEN; + gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN; debug("Reserving %dk for malloc() at: %08lx\n", - TOTAL_MALLOC_LEN >> 10, gd->dest_addr_sp); + TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp); return 0; }

/* (permanently) allocate a Board Info struct */ static int reserve_board(void) { - gd->dest_addr_sp -= sizeof(bd_t); - gd->bd = (bd_t *)map_sysmem(gd->dest_addr_sp, sizeof(bd_t)); + gd->start_addr_sp -= sizeof(bd_t); + gd->bd = (bd_t *)map_sysmem(gd->start_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); + sizeof(bd_t), gd->start_addr_sp); return 0; } #endif @@ -563,10 +565,10 @@ static int setup_machine(void)

static int reserve_global_data(void) { - gd->dest_addr_sp -= sizeof(gd_t); - gd->new_gd = (gd_t *)map_sysmem(gd->dest_addr_sp, sizeof(gd_t)); + gd->start_addr_sp -= sizeof(gd_t); + gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t)); debug("Reserving %zu Bytes for Global Data at: %08lx\n", - sizeof(gd_t), gd->dest_addr_sp); + sizeof(gd_t), gd->start_addr_sp); return 0; }

@@ -580,10 +582,10 @@ static int reserve_fdt(void) if (gd->fdt_blob) { gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);

- gd->dest_addr_sp -= gd->fdt_size; - gd->new_fdt = map_sysmem(gd->dest_addr_sp, gd->fdt_size); + gd->start_addr_sp -= gd->fdt_size; + gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size); debug("Reserving %lu Bytes for FDT at: %08lx\n", - gd->fdt_size, gd->dest_addr_sp); + gd->fdt_size, gd->start_addr_sp); }

return 0; @@ -593,8 +595,8 @@ static int reserve_stacks(void) { #ifdef CONFIG_SPL_BUILD # ifdef CONFIG_ARM - gd->dest_addr_sp -= 128; /* leave 32 words for abort-stack */ - gd->irq_sp = gd->dest_addr_sp; + gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */ + gd->irq_sp = gd->start_addr_sp; # endif #else # ifdef CONFIG_PPC @@ -602,9 +604,9 @@ static int reserve_stacks(void) # endif

/* setup stack pointer for exceptions */ - gd->dest_addr_sp -= 16; - gd->dest_addr_sp &= ~0xf; - gd->irq_sp = gd->dest_addr_sp; + gd->start_addr_sp -= 16; + gd->start_addr_sp &= ~0xf; + gd->irq_sp = gd->start_addr_sp;

/* * Handle architecture-specific things here @@ -613,18 +615,18 @@ static int reserve_stacks(void) */ # ifdef CONFIG_ARM # ifdef CONFIG_USE_IRQ - gd->dest_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ); + 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->dest_addr_sp); + CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);

/* 8-byte alignment for ARM ABI compliance */ - gd->dest_addr_sp &= ~0x07; + gd->start_addr_sp &= ~0x07; # endif /* leave 3 words for abort-stack, plus 1 for alignment */ - gd->dest_addr_sp -= 16; + gd->start_addr_sp -= 16; # elif defined(CONFIG_PPC) /* Clear initial stack frame */ - s = (ulong *) gd->dest_addr_sp; + s = (ulong *) gd->start_addr_sp; *s = 0; /* Terminate back chain */ *++s = 0; /* NULL return address */ # endif /* Architecture specific code */ @@ -635,7 +637,7 @@ static int reserve_stacks(void)

static int display_new_sp(void) { - debug("New Stack Pointer is: %08lx\n", gd->dest_addr_sp); + debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);

return 0; } @@ -757,15 +759,13 @@ static int reloc_fdt(void)

static int setup_reloc(void) { - gd->relocaddr = gd->dest_addr; - gd->start_addr_sp = gd->dest_addr_sp; - gd->reloc_off = gd->dest_addr - CONFIG_SYS_TEXT_BASE; + gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE; 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 %08lx, sp at %08lx\n", - gd->dest_addr, (ulong)map_to_sysmem(gd->new_gd), - gd->dest_addr_sp); + gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd), + gd->start_addr_sp);

return 0; } @@ -794,7 +794,7 @@ static int jump_to_copy(void) #elif defined(CONFIG_SANDBOX) board_init_r(gd->new_gd, 0); #else - relocate_code(gd->dest_addr_sp, gd->new_gd, gd->dest_addr); + relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr); #endif

return 0; diff --git a/common/board_r.c b/common/board_r.c index fd1fd31..f5649c9 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -137,7 +137,7 @@ static int initr_reloc_global_data(void) #ifdef CONFIG_SYS_SYM_OFFSETS monitor_flash_len = _end_ofs; #elif !defined(CONFIG_SANDBOX) - monitor_flash_len = (ulong)&__init_end - gd->dest_addr; + monitor_flash_len = (ulong)&__init_end - gd->relocaddr; #endif #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) /* @@ -145,7 +145,7 @@ static int initr_reloc_global_data(void) * We need to update it to point to the same CPU entry in RAM. * TODO: why not just add gd->reloc_ofs? */ - gd->arch.cpu += gd->dest_addr - CONFIG_SYS_MONITOR_BASE; + gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;

/* * If we didn't know the cpu mask & # cores, we can save them of @@ -161,7 +161,7 @@ static int initr_reloc_global_data(void) * in SRAM mode and initialize that cache from SRAM mode back to being * a cache in cpu_init_r. */ - gd->env_addr += gd->dest_addr - CONFIG_SYS_MONITOR_BASE; + gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE; #endif return 0; } @@ -178,7 +178,7 @@ static int initr_trap(void) /* * Setup trap handlers */ - trap_init(gd->dest_addr); + trap_init(gd->relocaddr);

return 0; } @@ -263,7 +263,7 @@ static int initr_malloc(void) ulong malloc_start;

/* The malloc area is immediately below the monitor copy in DRAM */ - malloc_start = gd->dest_addr - TOTAL_MALLOC_LEN; + malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN; mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN), TOTAL_MALLOC_LEN); return 0; @@ -276,7 +276,7 @@ __weak int power_init_board(void)

static int initr_announce(void) { - debug("Now running in RAM - U-Boot at: %08lx\n", gd->dest_addr); + debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr); return 0; }

diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index 5416f46..3e9ca11 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -68,9 +68,6 @@ typedef struct global_data { unsigned long env_addr; /* Address of Environment struct */ unsigned long env_valid; /* Checksum of Environment valid? */

- /* TODO: is this the same as relocaddr, or something else? */ - unsigned long dest_addr; /* Post-relocation address of U-Boot */ - unsigned long dest_addr_sp; unsigned long ram_top; /* Top address of RAM used by U-Boot */

unsigned long relocaddr; /* Start address of U-Boot in RAM */