X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farm926ejs%2Forion5x%2Fdram.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farm926ejs%2Forion5x%2Fdram.c;h=9ed93d25bc81cc52e6e1b2c9bbea7d57b9ba681d;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/orion5x/dram.c b/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/orion5x/dram.c new file mode 100644 index 000000000..9ed93d25b --- /dev/null +++ b/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/orion5x/dram.c @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2010 Albert ARIBAUD + * + * Based on original Kirkwood support which is + * (C) Copyright 2009 + * Marvell Semiconductor + * Written-by: Prafulla Wadaskar + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +/* + * orion5x_sdram_bar - reads SDRAM Base Address Register + */ +u32 orion5x_sdram_bar(enum memory_bank bank) +{ + struct orion5x_ddr_addr_decode_registers *winregs = + (struct orion5x_ddr_addr_decode_registers *) + ORION5X_DRAM_BASE; + + u32 result = 0; + u32 enable = 0x01 & winregs[bank].size; + + if ((!enable) || (bank > BANK3)) + return 0; + + result = winregs[bank].base; + return result; +} +int dram_init (void) +{ + /* dram_init must store complete ramsize in gd->ram_size */ + gd->ram_size = get_ram_size( + (long *) orion5x_sdram_bar(0), + CONFIG_MAX_RAM_BANK_SIZE); + return 0; +} + +void dram_init_banksize (void) +{ + int i; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + gd->bd->bi_dram[i].start = orion5x_sdram_bar(i); + gd->bd->bi_dram[i].size = get_ram_size( + (long *) (gd->bd->bi_dram[i].start), + CONFIG_MAX_RAM_BANK_SIZE); + } +}