diff options
Diffstat (limited to 'common/board_f.c')
| -rw-r--r-- | common/board_f.c | 43 |
1 files changed, 39 insertions, 4 deletions
diff --git a/common/board_f.c b/common/board_f.c index f92d7b9faf4..3df4efeeff6 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -57,6 +57,7 @@ #include <asm/sections.h> #include <dm/root.h> #include <linux/errno.h> +#include <linux/log2.h> /* * Pointer to initial global data area @@ -216,6 +217,36 @@ static int announce_dram_init(void) return 0; } +/* + * From input size calculate its nearest rounded unit scale (multiply of 2^10) + * and value in calculated unit scale multiplied by 10 (as fractional fixed + * point number with one decimal digit), which is human natural format, + * same what uses print_size() function for displaying. Mathematically it is: + * round_nearest(val * 2^scale) = size * 10; where: 10 <= val < 10240. + * + * For example for size=87654321 we calculate scale=20 and val=836 which means + * that input has natural human format 83.6 M (mega = 2^20). + */ +#define compute_size_scale_val(size, scale, val) do { \ + scale = ilog2(size) / 10 * 10; \ + val = (10 * size + ((1ULL << scale) >> 1)) >> scale; \ + if (val == 10240) { val = 10; scale += 10; } \ +} while (0) + +/* + * Check if the sizes in their natural units written in decimal format with + * one fraction number are same. + */ +static int sizes_near(unsigned long long size1, unsigned long long size2) +{ + unsigned int size1_scale, size1_val, size2_scale, size2_val; + + compute_size_scale_val(size1, size1_scale, size1_val); + compute_size_scale_val(size2, size2_scale, size2_val); + + return size1_scale == size2_scale && size1_val == size2_val; +} + static int show_dram_config(void) { unsigned long long size; @@ -232,7 +263,11 @@ static int show_dram_config(void) } debug("\nDRAM: "); - print_size(size, ""); + print_size(gd->ram_size, ""); + if (!sizes_near(gd->ram_size, size)) { + printf(" (effective "); + print_size(size, ")"); + } board_add_ram_info(0); putc('\n'); @@ -305,7 +340,7 @@ __weak int mach_cpu_init(void) } /* Get the top of usable RAM */ -__weak ulong board_get_usable_ram_top(ulong total_size) +__weak phys_size_t board_get_usable_ram_top(phys_size_t total_size) { #if defined(CONFIG_SYS_SDRAM_BASE) && CONFIG_SYS_SDRAM_BASE > 0 /* @@ -328,7 +363,7 @@ static int setup_dest_addr(void) /* * Ram is setup, size stored in gd !! */ - debug("Ram size: %08lX\n", (ulong)gd->ram_size); + debug("Ram size: %08llX\n", (unsigned long long)gd->ram_size); #if CONFIG_VAL(SYS_MEM_TOP_HIDE) /* * Subtract specified amount of memory to hide so that it won't @@ -348,7 +383,7 @@ static int setup_dest_addr(void) gd->ram_top = gd->ram_base + get_effective_memsize(); 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); + debug("Ram top: %08llX\n", (unsigned long long)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 |