Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / esd / ar405 / flash.c

diff --git a/qemu/roms/u-boot/board/esd/ar405/flash.c b/qemu/roms/u-boot/board/esd/ar405/flash.c
new file mode 100644 (file)
index 0000000..23e8164
--- /dev/null
+++ b/qemu/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);
+}