summaryrefslogtreecommitdiffstats
path: root/qemu/roms/u-boot/board/freescale/m5208evbe/m5208evbe.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/roms/u-boot/board/freescale/m5208evbe/m5208evbe.c')
-rw-r--r--qemu/roms/u-boot/board/freescale/m5208evbe/m5208evbe.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/freescale/m5208evbe/m5208evbe.c b/qemu/roms/u-boot/board/freescale/m5208evbe/m5208evbe.c
new file mode 100644
index 000000000..1df128b26
--- /dev/null
+++ b/qemu/roms/u-boot/board/freescale/m5208evbe/m5208evbe.c
@@ -0,0 +1,80 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2008, 2012 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts("Freescale M5208EVBe\n");
+ return 0;
+};
+
+phys_size_t initdram(int board_type)
+{
+ sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
+ u32 dramsize, i;
+
+ dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
+
+ for (i = 0x13; i < 0x20; i++) {
+ if (dramsize == (1 << i))
+ break;
+ }
+ i--;
+
+ out_be32(&sdram->cs0, CONFIG_SYS_SDRAM_BASE | i);
+#ifdef CONFIG_SYS_SDRAM_BASE1
+ out_be32(&sdram->cs1, CONFIG_SYS_SDRAM_BASE | i);
+#endif
+ out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
+ out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
+
+ udelay(500);
+
+ /* Issue PALL */
+ out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
+ asm("nop");
+
+ /* Perform two refresh cycles */
+ out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
+ out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
+ asm("nop");
+
+ /* Issue LEMR */
+ out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
+ asm("nop");
+ out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
+ asm("nop");
+
+ out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
+ asm("nop");
+
+ out_be32(&sdram->ctrl,
+ (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
+ asm("nop");
+
+ udelay(100);
+
+ return dramsize;
+};
+
+int testdram(void)
+{
+ /* TODO: XXX XXX XXX */
+ printf("DRAM test not implemented!\n");
+
+ return (0);
+}