Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / arm926ejs / orion5x / dram.c

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 (file)
index 0000000..9ed93d2
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/orion5x/dram.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
+ *
+ * Based on original Kirkwood support which is
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/arch/cpu.h>
+
+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);
+       }
+}