Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / esd / du405 / flash.c

diff --git a/qemu/roms/u-boot/board/esd/du405/flash.c b/qemu/roms/u-boot/board/esd/du405/flash.c
new file mode 100644 (file)
index 0000000..5650e5e
--- /dev/null
+++ b/qemu/roms/u-boot/board/esd/du405/flash.c
@@ -0,0 +1,107 @@
+/*
+ * (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, size_b1;
+       int i;
+       uint pbcr;
+       unsigned long base_b0, base_b1;
+
+       /* 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 */
+
+       base_b0 = FLASH_BASE0_PRELIM;
+       size_b0 = flash_get_size ((vu_long *) base_b0, &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);
+       }
+
+       base_b1 = FLASH_BASE1_PRELIM;
+       size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]);
+
+       /* Re-do sizing to get full correct info */
+
+       if (size_b1) {
+               mtdcr (EBC0_CFGADDR, PB0CR);
+               pbcr = mfdcr (EBC0_CFGDATA);
+               mtdcr (EBC0_CFGADDR, PB0CR);
+               base_b1 = -size_b1;
+               pbcr = (pbcr & 0x0001ffff) | base_b1 |
+                               (((size_b1 / 1024 / 1024) - 1) << 17);
+               mtdcr (EBC0_CFGDATA, pbcr);
+               /*          printf("PB1CR = %x\n", pbcr); */
+       }
+
+       if (size_b0) {
+               mtdcr (EBC0_CFGADDR, PB1CR);
+               pbcr = mfdcr (EBC0_CFGDATA);
+               mtdcr (EBC0_CFGADDR, PB1CR);
+               base_b0 = base_b1 - size_b0;
+               pbcr = (pbcr & 0x0001ffff) | base_b0 |
+                               (((size_b0 / 1024 / 1024) - 1) << 17);
+               mtdcr (EBC0_CFGDATA, pbcr);
+               /*            printf("PB0CR = %x\n", pbcr); */
+       }
+
+       size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]);
+
+       flash_get_offsets (base_b0, &flash_info[0]);
+
+       /* monitor protection ON by default */
+       flash_protect (FLAG_PROTECT_SET,
+                       base_b0 + size_b0 - monitor_flash_len,
+                       base_b0 + size_b0 - 1, &flash_info[0]);
+
+       if (size_b1) {
+               /* Re-do sizing to get full correct info */
+               size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]);
+
+               flash_get_offsets (base_b1, &flash_info[1]);
+
+               /* monitor protection ON by default */
+               flash_protect (FLAG_PROTECT_SET,
+                               base_b1 + size_b1 - monitor_flash_len,
+                               base_b1 + size_b1 - 1, &flash_info[1]);
+               /* monitor protection OFF by default (one is enough) */
+               flash_protect (FLAG_PROTECT_CLEAR,
+                               base_b0 + size_b0 - monitor_flash_len,
+                               base_b0 + size_b0 - 1, &flash_info[0]);
+       } else {
+               flash_info[1].flash_id = FLASH_UNKNOWN;
+               flash_info[1].sector_count = -1;
+       }
+
+       flash_info[0].size = size_b0;
+       flash_info[1].size = size_b1;
+
+       return (size_b0 + size_b1);
+}