diff options
Diffstat (limited to 'src/cpu/ti/am335x')
| -rw-r--r-- | src/cpu/ti/am335x/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/cpu/ti/am335x/bootblock_media.c | 72 |
2 files changed, 73 insertions, 1 deletions
diff --git a/src/cpu/ti/am335x/Makefile.inc b/src/cpu/ti/am335x/Makefile.inc index e1220faa41..ff007334a6 100644 --- a/src/cpu/ti/am335x/Makefile.inc +++ b/src/cpu/ti/am335x/Makefile.inc @@ -1,5 +1,5 @@ bootblock-y += dmtimer.c -bootblock-y += nand.c +bootblock-y += bootblock_media.c bootblock-y += pinmux.c bootblock-$(CONFIG_EARLY_CONSOLE) += uart.c diff --git a/src/cpu/ti/am335x/bootblock_media.c b/src/cpu/ti/am335x/bootblock_media.c new file mode 100644 index 0000000000..553fe42e4d --- /dev/null +++ b/src/cpu/ti/am335x/bootblock_media.c @@ -0,0 +1,72 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <cbfs.h> +#include <console/console.h> +#include <string.h> + +static int dummy_open(struct cbfs_media *media) +{ + return 0; +} + +static int dummy_close(struct cbfs_media *media) +{ + return 0; +} + +static void * on_chip_memory_map(struct cbfs_media *media, size_t offset, + size_t count) +{ + return (void *)((uintptr_t)CONFIG_BOOTBLOCK_BASE + offset); +} + +static void * dummy_unmap(struct cbfs_media *media, const void *address) +{ + return NULL; +} + +static size_t on_chip_memory_read(struct cbfs_media *media, void *dest, + size_t offset, size_t count) +{ + void *ptr = media->map(media, offset, count); + memcpy(dest, ptr, count); + media->unmap(media, ptr); + return count; +} + +int init_default_cbfs_media(struct cbfs_media *media) +{ + struct cbfs_header *header = + (struct cbfs_header *)((uintptr_t)CONFIG_BOOTBLOCK_BASE + + CONFIG_CBFS_HEADER_ROM_OFFSET); + + if (CBFS_HEADER_MAGIC != ntohl(header->magic)) { + printk(BIOS_ERR, "Invalid CBFS master header at %p\n", header); + return -1; + } + + media->open = dummy_open; + media->close = dummy_close; + media->map = on_chip_memory_map; + media->unmap = dummy_unmap; + media->read = on_chip_memory_read; + + return 0; +} |