diff options
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-layerscape/cpu.c')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 77 |
1 files changed, 35 insertions, 42 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index d21a49454e1..ab5d76ea3b6 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c @@ -647,13 +647,14 @@ phys_size_t get_effective_memsize(void) /* * For ARMv8 SoCs, DDR memory is split into two or three regions. The - * first region is 2GB space at 0x8000_0000. If the memory extends to - * the second region (or the third region if applicable), the secure - * memory and Management Complex (MC) memory should be put into the - * highest region, i.e. the end of DDR memory. CONFIG_MAX_MEM_MAPPED - * is set to the size of first region so U-Boot doesn't relocate itself - * into higher address. Should DDR be configured to skip the first - * region, this function needs to be adjusted. + * first region is 2GB space at 0x8000_0000. Secure memory needs to + * allocated from first region. If the memory extends to the second + * region (or the third region if applicable), Management Complex (MC) + * memory should be put into the highest region, i.e. the end of DDR + * memory. CONFIG_MAX_MEM_MAPPED is set to the size of first region so + * U-Boot doesn't relocate itself into higher address. Should DDR be + * configured to skip the first region, this function needs to be + * adjusted. */ if (gd->ram_size > CONFIG_MAX_MEM_MAPPED) { ea_size = CONFIG_MAX_MEM_MAPPED; @@ -664,16 +665,10 @@ phys_size_t get_effective_memsize(void) #ifdef CONFIG_SYS_MEM_RESERVE_SECURE /* Check if we have enough space for secure memory */ - if (rem > CONFIG_SYS_MEM_RESERVE_SECURE) { - rem -= CONFIG_SYS_MEM_RESERVE_SECURE; - } else { - if (ea_size > CONFIG_SYS_MEM_RESERVE_SECURE) { - ea_size -= CONFIG_SYS_MEM_RESERVE_SECURE; - rem = 0; /* Presume MC requires more memory */ - } else { - printf("Error: No enough space for secure memory.\n"); - } - } + if (ea_size > CONFIG_SYS_MEM_RESERVE_SECURE) + ea_size -= CONFIG_SYS_MEM_RESERVE_SECURE; + else + printf("Error: No enough space for secure memory.\n"); #endif /* Check if we have enough memory for MC */ if (rem < board_reserve_ram_top(rem)) { @@ -698,8 +693,19 @@ int dram_init_banksize(void) * memory. The DDR extends from low region to high region(s) presuming * no hole is created with DDR configuration. gd->arch.secure_ram tracks * the location of secure memory. gd->arch.resv_ram tracks the location - * of reserved memory for Management Complex (MC). + * of reserved memory for Management Complex (MC). Because gd->ram_size + * is reduced by this function if secure memory is reserved, checking + * gd->arch.secure_ram should be done to avoid running it repeatedly. */ + +#ifdef CONFIG_SYS_MEM_RESERVE_SECURE + if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) { + debug("No need to run again, skip %s\n", __func__); + + return 0; + } +#endif + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; if (gd->ram_size > CONFIG_SYS_DDR_BLOCK1_SIZE) { gd->bd->bi_dram[0].size = CONFIG_SYS_DDR_BLOCK1_SIZE; @@ -718,32 +724,14 @@ int dram_init_banksize(void) gd->bd->bi_dram[0].size = gd->ram_size; } #ifdef CONFIG_SYS_MEM_RESERVE_SECURE -#ifdef CONFIG_SYS_DDR_BLOCK3_BASE - if (gd->bd->bi_dram[2].size >= CONFIG_SYS_MEM_RESERVE_SECURE) { - gd->bd->bi_dram[2].size -= CONFIG_SYS_MEM_RESERVE_SECURE; - gd->arch.secure_ram = gd->bd->bi_dram[2].start + - gd->bd->bi_dram[2].size; + if (gd->bd->bi_dram[0].size > + CONFIG_SYS_MEM_RESERVE_SECURE) { + gd->bd->bi_dram[0].size -= + CONFIG_SYS_MEM_RESERVE_SECURE; + gd->arch.secure_ram = gd->bd->bi_dram[0].start + + gd->bd->bi_dram[0].size; gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED; gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE; - } else -#endif - { - if (gd->bd->bi_dram[1].size >= CONFIG_SYS_MEM_RESERVE_SECURE) { - gd->bd->bi_dram[1].size -= - CONFIG_SYS_MEM_RESERVE_SECURE; - gd->arch.secure_ram = gd->bd->bi_dram[1].start + - gd->bd->bi_dram[1].size; - gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED; - gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE; - } else if (gd->bd->bi_dram[0].size > - CONFIG_SYS_MEM_RESERVE_SECURE) { - gd->bd->bi_dram[0].size -= - CONFIG_SYS_MEM_RESERVE_SECURE; - gd->arch.secure_ram = gd->bd->bi_dram[0].start + - gd->bd->bi_dram[0].size; - gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED; - gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE; - } } #endif /* CONFIG_SYS_MEM_RESERVE_SECURE */ @@ -797,6 +785,11 @@ int dram_init_banksize(void) } #endif +#ifdef CONFIG_SYS_MEM_RESERVE_SECURE + debug("%s is called. gd->ram_size is reduced to %lu\n", + __func__, (ulong)gd->ram_size); +#endif + return 0; } |