1 files changed, 85 insertions, 0 deletions
diff --git a/roms/u-boot/board/esd/ar405/flash.c b/roms/u-boot/board/esd/ar405/flash.c
new file mode 100644
index 00000000..23e81642
--- /dev/null
+++ b/roms/u-boot/board/esd/ar405/flash.c
@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2001
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/ppc4xx.h>
+#include <asm/processor.h>
+
+/*
+ * include common flash code (for esd boards)
+ */
+#include "../common/flash.c"
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (vu_long * addr, flash_info_t * info);
+static void flash_get_offsets (ulong base, flash_info_t * info);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+	unsigned long size_b0;
+	int i;
+	uint pbcr;
+	unsigned long base_b0;
+	int size_val = 0;
+
+	/* Init: no FLASHes known */
+	for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+	}
+
+	/* Static FLASH Bank configuration here - FIXME XXX */
+
+	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
+
+	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+			size_b0, size_b0<<20);
+	}
+
+	/* Setup offsets */
+	flash_get_offsets (-size_b0, &flash_info[0]);
+
+	/* Re-do sizing to get full correct info */
+	mtdcr(EBC0_CFGADDR, PB0CR);
+	pbcr = mfdcr(EBC0_CFGDATA);
+	mtdcr(EBC0_CFGADDR, PB0CR);
+	base_b0 = -size_b0;
+	switch (size_b0) {
+	case 1 << 20:
+		size_val = 0;
+		break;
+	case 2 << 20:
+		size_val = 1;
+		break;
+	case 4 << 20:
+		size_val = 2;
+		break;
+	case 8 << 20:
+		size_val = 3;
+		break;
+	case 16 << 20:
+		size_val = 4;
+		break;
+	}
+	pbcr = (pbcr & 0x0001ffff) | base_b0 | (size_val << 17);
+	mtdcr(EBC0_CFGDATA, pbcr);
+
+	/* Monitor protection ON by default */
+	(void)flash_protect(FLAG_PROTECT_SET,
+			    -CONFIG_SYS_MONITOR_LEN,
+			    0xffffffff,
+			    &flash_info[0]);
+
+	flash_info[0].size = size_b0;
+
+	return (size_b0);
+}