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authorHung-Te Lin <hungte@chromium.org>2013-01-22 18:57:56 +0800
committerRonald G. Minnich <rminnich@gmail.com>2013-01-30 17:58:32 +0100
commit6fe0cab205e131525efbfce4f59da344b1e76598 (patch)
tree0ecd9e5059fd9bb2669f7487f39890beee14fcc3
parent5fc64dca45b01556a9325bea0fb563d6f0d16f75 (diff)
downloadcoreboot-6fe0cab205e131525efbfce4f59da344b1e76598.tar.xz
Extend CBFS to support arbitrary ROM source media.
Summary: Isolate CBFS underlying I/O to board/arch-specific implementations as "media stream", to allow loading and booting romstage on non-x86. CBFS functions now all take a new "media source" parameter; use CBFS_DEFAULT_MEDIA if you simply want to load from main firmware. API Changes: cbfs_find => cbfs_get_file. cbfs_find_file => cbfs_get_file_content. cbfs_get_file => cbfs_get_file_content with correct type. CBFS used to work only on memory-mapped ROM (all x86). For platforms like ARM, the ROM may come from USB, UART, or SPI -- any serial devices and not available for memory mapping. To support these devices (and allowing CBFS to read from multiple source at the same time), CBFS operations are now virtual-ized into "cbfs_media". To simplify porting existing code, every media source must support both "reading into pre-allocated memory (read)" and "read and return an allocated buffer (map)". For devices without native memory-mapped ROM, "cbfs_simple_buffer*" provides simple memory mapping simulation. Every CBFS function now takes a cbfs_media* as parameter. CBFS_DEFAULT_MEDIA is defined for CBFS functions to automatically initialize a per-board default media (CBFS will internally calls init_default_cbfs_media). Also revised CBFS function names relying on memory mapped backend (ex, "cbfs_find" => actually loads files). Now we only have two getters: struct cbfs_file *entry = cbfs_get_file(media, name); void *data = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, name, type); Test results: - Verified to work on x86/qemu. - Compiles on ARM, and follow up commit will provide working SPI driver. Change-Id: Iac911ded25a6f2feffbf3101a81364625bb07746 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2182 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
-rw-r--r--src/arch/armv7/boot/coreboot_table.c4
-rw-r--r--src/arch/armv7/bootblock_simple.c4
-rw-r--r--src/arch/armv7/include/arch/cbfs.h101
-rw-r--r--src/arch/x86/boot/coreboot_table.c4
-rw-r--r--src/arch/x86/boot/smbios.c12
-rw-r--r--src/arch/x86/lib/Makefile.inc3
-rw-r--r--src/arch/x86/lib/cbfs_and_run.c2
-rw-r--r--src/arch/x86/lib/rom_media.c101
-rw-r--r--src/cpu/intel/microcode/microcode.c5
-rw-r--r--src/cpu/samsung/exynos5-common/Makefile.inc4
-rw-r--r--src/cpu/samsung/exynos5-common/spi.c7
-rw-r--r--src/cpu/samsung/exynos5250/Kconfig16
-rw-r--r--src/cpu/via/nano/update_ucode.c2
-rw-r--r--src/device/oprom/realmode/x86.c8
-rw-r--r--src/device/oprom/yabel/vbe.c4
-rw-r--r--src/device/pci_rom.c9
-rw-r--r--src/drivers/pc80/mc146818rtc.c6
-rw-r--r--src/include/cbfs.h37
-rw-r--r--src/include/cbfs_core.h72
-rw-r--r--src/include/endian.h25
-rw-r--r--src/lib/cbfs.c141
-rw-r--r--src/lib/cbfs_core.c200
-rw-r--r--src/lib/hardwaremain.c5
-rw-r--r--src/lib/selfboot.c9
-rw-r--r--src/mainboard/google/snow/bootblock.c4
-rw-r--r--src/mainboard/samsung/lumpy/romstage.c2
-rw-r--r--src/northbridge/amd/agesa/family15tn/fam15tn_callouts.c4
-rw-r--r--src/northbridge/intel/i82830/vga.c2
-rw-r--r--src/northbridge/intel/sandybridge/raminit.c4
29 files changed, 542 insertions, 255 deletions
diff --git a/src/arch/armv7/boot/coreboot_table.c b/src/arch/armv7/boot/coreboot_table.c
index 86a004d887..b2d88aa776 100644
--- a/src/arch/armv7/boot/coreboot_table.c
+++ b/src/arch/armv7/boot/coreboot_table.c
@@ -640,7 +640,9 @@ unsigned long write_coreboot_table(
#if CONFIG_USE_OPTION_TABLE
{
- struct cmos_option_table *option_table = cbfs_find_file("cmos_layout.bin", 0x1aa);
+ struct cmos_option_table *option_table = cbfs_get_file_content(
+ CBFS_DEFAULT_MEDIA, "cmos_layout.bin",
+ CBFS_COMPONENT_CMOS_LAYOUT);
if (option_table) {
struct lb_record *rec_dest = lb_new_record(head);
/* Copy the option config table, it's already a lb_record... */
diff --git a/src/arch/armv7/bootblock_simple.c b/src/arch/armv7/bootblock_simple.c
index af76d4c973..d97075e2f8 100644
--- a/src/arch/armv7/bootblock_simple.c
+++ b/src/arch/armv7/bootblock_simple.c
@@ -45,7 +45,9 @@ void main(unsigned long bist)
}
printk(BIOS_INFO, "bootblock main(): loading romstage\n");
- romstage_entry = loadstage(target1);
+ romstage_entry = (unsigned long)cbfs_load_stage(
+ CBFS_DEFAULT_MEDIA, target1);
+
printk(BIOS_INFO, "bootblock main(): jumping to romstage\n");
if (romstage_entry) bootblock_exit(romstage_entry);
hlt();
diff --git a/src/arch/armv7/include/arch/cbfs.h b/src/arch/armv7/include/arch/cbfs.h
index f060643936..e34a0d2b27 100644
--- a/src/arch/armv7/include/arch/cbfs.h
+++ b/src/arch/armv7/include/arch/cbfs.h
@@ -20,82 +20,41 @@
#ifndef __INCLUDE_ARCH_CBFS__
#define __INCLUDE_ARCH_CBFS__
-#include <string.h>
-#include <types.h>
#include <cbfs_core.h>
#include <arch/byteorder.h>
-#include <arch/cbfs.h>
+// TODO FIXME This file is only for providing CBFS function in bootblock.
+// Should be removed once bootblock can link lib/* files.
+#include "lib/cbfs.c"
-static int cbfs_check_magic(struct cbfs_file *file)
-{
- return strcmp(file->magic, CBFS_FILE_MAGIC) ? 0 : 1;
+// mem* and ulzma are now workarounds for bootblock compilation.
+void *memcpy(void *dest, const void *src, size_t n) {
+ char *d = (char *)dest;
+ const char *s = (const char*)src;
+ while (n-- > 0)
+ *d++ = *s++;
+ return dest;
}
-static unsigned long loadstage(const char* target)
-{
- unsigned long offset, align;
- struct cbfs_header *header = (struct cbfs_header *)(CONFIG_BOOTBLOCK_BASE + 0x40);
- /* FIXME: magic offsets */
- // if (ntohl(header->magic) != CBFS_HEADER_MAGIC)
- // printk(BIOS_ERR, "ERROR: No valid CBFS header found!\n");
+void *memset(void *dest, int c, size_t n) {
+ char *d = (char*)dest;
+ while (n-- > 0)
+ *d++ = c;
+ return dest;
+}
+
+int memcmp(const void *ptr1, const void *ptr2, size_t n) {
+ const char *s1 = (const char*)ptr1, *s2 = (const char*)ptr2;
+ int c;
+ while (n-- > 0)
+ if ((c = *s1++ - *s2++))
+ return c;
+ return 0;
+}
- offset = ntohl(header->offset);
- align = ntohl(header->align);
- printk(BIOS_INFO, "cbfs header (0x%p)\n", header);
- printk(BIOS_INFO, "\tmagic: 0x%08x\n", ntohl(header->magic));
- printk(BIOS_INFO, "\tversion: 0x%08x\n", ntohl(header->version));
- printk(BIOS_INFO, "\tromsize: 0x%08x\n", ntohl(header->romsize));
- printk(BIOS_INFO, "\tbootblocksize: 0x%08x\n", ntohl(header->bootblocksize));
- printk(BIOS_INFO, "\talign: 0x%08x\n", ntohl(header->align));
- printk(BIOS_INFO, "\toffset: 0x%08x\n", ntohl(header->offset));
- while(1) {
- struct cbfs_file *file;
- struct cbfs_stage *stage;
- /* FIXME: SPI image hack */
- file = (struct cbfs_file *)(offset + CONFIG_SPI_IMAGE_HACK);
- if (!cbfs_check_magic(file)) {
- printk(BIOS_INFO, "magic is wrong, file: %p\n", file);
- return 0;
- }
- if (!strcmp(CBFS_NAME(file), target)) {
- uint32_t load, entry;
- printk(BIOS_INFO, "CBFS name matched, offset: %p\n", file);
- printk(BIOS_INFO, "\tmagic: %02x%02x%02x%02x%02x%02x%02x%02x\n",
- file->magic[0], file->magic[1], file->magic[2], file->magic[3],
- file->magic[4], file->magic[5], file->magic[6], file->magic[7]);
- printk(BIOS_INFO, "\tlen: 0x%08x\n", ntohl(file->len));
- printk(BIOS_INFO, "\ttype: 0x%08x\n", ntohl(file->type));
- printk(BIOS_INFO, "\tchecksum: 0x%08x\n", ntohl(file->checksum));
- printk(BIOS_INFO, "\toffset: 0x%08x\n", ntohl(file->offset));
- /* exploit the fact that this is all word-aligned. */
- stage = CBFS_SUBHEADER(file);
- load = stage->load;
- entry = stage->entry;
- int i;
- u32 *to = (void *)load;
- u32 *from = (void *)((u8 *)stage+sizeof(*stage));
- /* we could do memmove/memset here. But the math gets messy.
- * far easier just to do what we want.
- */
- printk(BIOS_INFO, "entry: 0x%08x, load: 0x%08x, "
- "len: 0x%08x, memlen: 0x%08x\n", entry,
- load, stage->len, stage->memlen);
- for(i = 0; i < stage->len; i += 4)
- *to++ = *from++;
- for(; i < stage->memlen; i += 4)
- *to++ = 0;
- return entry;
- }
- int flen = ntohl(file->len);
- int foffset = ntohl(file->offset);
- unsigned long oldoffset = offset;
- offset = ALIGN(offset + foffset + flen, align);
- printk(BIOS_INFO, "offset: 0x%08lx\n", offset);
- if (offset <= oldoffset)
- return 0;
- if (offset > CONFIG_ROMSTAGE_SIZE)
- return 0;
- }
+unsigned long ulzma(unsigned char *src, unsigned char *dest) {
+ // TODO remove this.
+ return -1;
}
-#endif
+
+#endif // __INCLUDE_ARCH_CBFS__
diff --git a/src/arch/x86/boot/coreboot_table.c b/src/arch/x86/boot/coreboot_table.c
index 8dccd77287..04fba47b3f 100644
--- a/src/arch/x86/boot/coreboot_table.c
+++ b/src/arch/x86/boot/coreboot_table.c
@@ -638,7 +638,9 @@ unsigned long write_coreboot_table(
#if CONFIG_USE_OPTION_TABLE
{
- struct cmos_option_table *option_table = cbfs_find_file("cmos_layout.bin", 0x1aa);
+ struct cmos_option_table *option_table = cbfs_get_file_content(
+ CBFS_DEFAULT_MEDIA, "cmos_layout.bin",
+ CBFS_COMPONENT_CMOS_LAYOUT);
if (option_table) {
struct lb_record *rec_dest = lb_new_record(head);
/* Copy the option config table, it's already a lb_record... */
diff --git a/src/arch/x86/boot/smbios.c b/src/arch/x86/boot/smbios.c
index 72e70bacea..f65ced2746 100644
--- a/src/arch/x86/boot/smbios.c
+++ b/src/arch/x86/boot/smbios.c
@@ -120,7 +120,6 @@ static int smbios_processor_name(char *start)
static int smbios_write_type0(unsigned long *current, int handle)
{
- struct cbfs_header *hdr;
struct smbios_type0 *t = (struct smbios_type0 *)*current;
int len = sizeof(struct smbios_type0);
@@ -143,8 +142,15 @@ static int smbios_write_type0(unsigned long *current, int handle)
vboot_data->vbt10 = (u32)t->eos + (version_offset - 1);
#endif
- if ((hdr = get_cbfs_header()) != (struct cbfs_header *)0xffffffff)
- t->bios_rom_size = (ntohl(hdr->romsize) / 65535) - 1;
+ {
+ const struct cbfs_header *header;
+ u32 romsize = CONFIG_ROM_SIZE;
+ header = cbfs_get_header(CBFS_DEFAULT_MEDIA);
+ if (header != CBFS_HEADER_INVALID_ADDRESS)
+ romsize = ntohl(header->romsize);
+ t->bios_rom_size = (romsize / 65535) - 1;
+ }
+
t->system_bios_major_release = 4;
t->bios_characteristics =
BIOS_CHARACTERISTICS_PCI_SUPPORTED |
diff --git a/src/arch/x86/lib/Makefile.inc b/src/arch/x86/lib/Makefile.inc
index 2186072ab4..f4dc8b8426 100644
--- a/src/arch/x86/lib/Makefile.inc
+++ b/src/arch/x86/lib/Makefile.inc
@@ -8,13 +8,16 @@ ramstage-$(CONFIG_IOAPIC) += ioapic.c
ramstage-y += memset.c
ramstage-y += memcpy.c
ramstage-y += ebda.c
+ramstage-y += rom_media.c
romstage-y += romstage_console.c
romstage-y += cbfs_and_run.c
romstage-y += memset.c
romstage-y += memcpy.c
+romstage-y += rom_media.c
smm-y += memset.c
smm-y += memcpy.c
+smm-y += rom_media.c
$(obj)/arch/x86/lib/console.ramstage.o :: $(obj)/build.h
diff --git a/src/arch/x86/lib/cbfs_and_run.c b/src/arch/x86/lib/cbfs_and_run.c
index 1f87e7ab62..a023141650 100644
--- a/src/arch/x86/lib/cbfs_and_run.c
+++ b/src/arch/x86/lib/cbfs_and_run.c
@@ -28,7 +28,7 @@ static void cbfs_and_run_core(const char *filename, unsigned ebp)
timestamp_add_now(TS_START_COPYRAM);
print_debug("Loading image.\n");
- dst = cbfs_load_stage(filename);
+ dst = cbfs_load_stage(CBFS_DEFAULT_MEDIA, filename);
if ((void *)dst == (void *) -1)
die("FATAL: Essential component is missing.\n");
diff --git a/src/arch/x86/lib/rom_media.c b/src/arch/x86/lib/rom_media.c
new file mode 100644
index 0000000000..ed2122cb4e
--- /dev/null
+++ b/src/arch/x86/lib/rom_media.c
@@ -0,0 +1,101 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
+ *
+ * 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 <string.h>
+
+#ifdef LIBPAYLOAD
+# define printk(x...)
+# define init_default_cbfs_media libpayload_init_default_cbfs_media
+ extern int libpayload_init_default_cbfs_media(struct cbfs_media *media);
+#else
+# include <console/console.h>
+#endif
+
+// Implementation of memory-mapped ROM media source on X86.
+
+static int x86_rom_open(struct cbfs_media *media) {
+ return 0;
+}
+
+static void *x86_rom_map(struct cbfs_media *media, size_t offset, size_t count) {
+ void *ptr;
+ // Some address (ex, pointer to master header) may be given in memory
+ // mapped location. To workaround that, we handle >0xf0000000 as real
+ // memory pointer.
+
+ if ((uint32_t)offset > (uint32_t)0xf0000000)
+ ptr = (void*)offset;
+ else
+ ptr = (void*)(0 - (uint32_t)media->context + offset);
+ return ptr;
+}
+
+static void *x86_rom_unmap(struct cbfs_media *media, const void *address) {
+ return NULL;
+}
+
+static size_t x86_rom_read(struct cbfs_media *media, void *dest, size_t offset,
+ size_t count) {
+ void *ptr = x86_rom_map(media, offset, count);
+ memcpy(dest, ptr, count);
+ x86_rom_unmap(media, ptr);
+ return count;
+}
+
+static int x86_rom_close(struct cbfs_media *media) {
+ return 0;
+}
+
+int init_x86rom_cbfs_media(struct cbfs_media *media);
+int init_x86rom_cbfs_media(struct cbfs_media *media) {
+ // On X86, we always keep a reference of pointer to CBFS header in
+ // 0xfffffffc, and the pointer is still a memory-mapped address.
+ // Since the CBFS core always use ROM offset, we need to figure out
+ // header->romsize even before media is initialized.
+ struct cbfs_header *header = (struct cbfs_header*)
+ *(uint32_t*)(0xfffffffc);
+ if (CBFS_HEADER_MAGIC != ntohl(header->magic)) {
+#if defined(CONFIG_ROM_SIZE)
+ printk(BIOS_ERR, "Invalid CBFS master header at %p\n", header);
+ media->context = (void*)CONFIG_ROM_SIZE;
+#else
+ return -1;
+#endif
+ } else {
+ uint32_t romsize = ntohl(header->romsize);
+ media->context = (void*)romsize;
+#if defined(CONFIG_ROM_SIZE)
+ if (CONFIG_ROM_SIZE != romsize)
+ printk(BIOS_INFO, "Warning: rom size unmatch (%d/%d)\n",
+ CONFIG_ROM_SIZE, romsize);
+#endif
+ }
+ media->open = x86_rom_open;
+ media->close = x86_rom_close;
+ media->map = x86_rom_map;
+ media->unmap = x86_rom_unmap;
+ media->read = x86_rom_read;
+ return 0;
+}
+
+int init_default_cbfs_media(struct cbfs_media *media) {
+ return init_x86rom_cbfs_media(media);
+}
diff --git a/src/cpu/intel/microcode/microcode.c b/src/cpu/intel/microcode/microcode.c
index 15d6513b33..713a6df19b 100644
--- a/src/cpu/intel/microcode/microcode.c
+++ b/src/cpu/intel/microcode/microcode.c
@@ -166,8 +166,9 @@ void intel_update_microcode_from_cbfs(void)
#ifdef __PRE_RAM__
microcode_blob = walkcbfs((char *) MICROCODE_CBFS_FILE);
#else
- microcode_blob = cbfs_find_file(MICROCODE_CBFS_FILE,
- CBFS_TYPE_MICROCODE);
+ microcode_blob = cbfs_get_file_content(CBFS_DEFAULT_MEDIA,
+ MICROCODE_CBFS_FILE,
+ CBFS_TYPE_MICROCODE);
#endif
intel_update_microcode(microcode_blob);
}
diff --git a/src/cpu/samsung/exynos5-common/Makefile.inc b/src/cpu/samsung/exynos5-common/Makefile.inc
index cad6cb3de7..d919347836 100644
--- a/src/cpu/samsung/exynos5-common/Makefile.inc
+++ b/src/cpu/samsung/exynos5-common/Makefile.inc
@@ -1,2 +1,2 @@
-#romstage-y += soc.c
-romstage-y += spl_boot.c
+romstage-y += spi.c
+ramstage-y += spi.c
diff --git a/src/cpu/samsung/exynos5-common/spi.c b/src/cpu/samsung/exynos5-common/spi.c
new file mode 100644
index 0000000000..e13eadf3fe
--- /dev/null
+++ b/src/cpu/samsung/exynos5-common/spi.c
@@ -0,0 +1,7 @@
+#include <cbfs.h>
+
+/* TODO provide a real SPI driver here for firmware media. */
+
+int init_default_cbfs_media(struct cbfs_media *media) {
+ return -1;
+}
diff --git a/src/cpu/samsung/exynos5250/Kconfig b/src/cpu/samsung/exynos5250/Kconfig
index f5beddcdb4..41a1446ef2 100644
--- a/src/cpu/samsung/exynos5250/Kconfig
+++ b/src/cpu/samsung/exynos5250/Kconfig
@@ -48,6 +48,22 @@ config ROMSTAGE_SIZE
hex
default 0x10000
+# TODO Change this to some better address not overlapping bootblock when
+# cbfstool supports creating header in arbitrary location.
+config CBFS_HEADER_ROM_OFFSET
+ hex "offset of master CBFS header in ROM"
+ default 0x2040
+
+# TODO We may probably move this to board-specific implementation files instead
+# of KConfig values.
+config CBFS_CACHE_ADDRESS
+ hex "memory address to put CBFS cache data"
+ default 0x02060000
+
+config CBFS_CACHE_SIZE
+ hex "size of CBFS cache data"
+ default 0x000017000
+
# FIXME: This is for copying SPI content into SRAM temporarily and
# will be removed when we have the SPI streaming driver implemented.
config SPI_IMAGE_HACK
diff --git a/src/cpu/via/nano/update_ucode.c b/src/cpu/via/nano/update_ucode.c
index 8f7ee224a4..d5757f87a7 100644
--- a/src/cpu/via/nano/update_ucode.c
+++ b/src/cpu/via/nano/update_ucode.c
@@ -105,7 +105,7 @@ unsigned int nano_update_ucode(void)
const struct cbfs_file *cbfs_ucode;
u32 fms = cpuid_eax(0x1);
- cbfs_ucode = cbfs_find("cpu_microcode_blob.bin");
+ cbfs_ucode = cbfs_get_file(CBFS_DEFAULT_MEDIA, "cpu_microcode_blob.bin");
/* Oops, did you forget to include the microcode ? */
if(cbfs_ucode == NULL) {
printk(BIOS_ALERT, "WARNING: No microcode file found in CBFS. "
diff --git a/src/device/oprom/realmode/x86.c b/src/device/oprom/realmode/x86.c
index 697d869821..07eff0ddee 100644
--- a/src/device/oprom/realmode/x86.c
+++ b/src/device/oprom/realmode/x86.c
@@ -248,8 +248,9 @@ void vbe_set_graphics(void)
#if CONFIG_BOOTSPLASH
struct jpeg_decdata *decdata;
decdata = malloc(sizeof(*decdata));
- unsigned char *jpeg = cbfs_find_file("bootsplash.jpg",
- CBFS_TYPE_BOOTSPLASH);
+ unsigned char *jpeg = cbfs_get_file_content(CBFS_DEFAULT_MEDIA,
+ "bootsplash.jpg",
+ CBFS_TYPE_BOOTSPLASH);
if (!jpeg) {
printk(BIOS_DEBUG, "VBE: No bootsplash found.\n");
return;
@@ -366,7 +367,8 @@ void do_vsmbios(void)
printk(BIOS_SPEW, "VSA: Real mode stub @%p: %d bytes\n", REALMODE_BASE,
(u32)&__realmode_code_size);
- if ((unsigned int)cbfs_load_stage("vsa") != VSA2_ENTRY_POINT) {
+ if ((unsigned int)cbfs_load_stage(CBFS_DEFAULT_MEDIA, "vsa") !=
+ VSA2_ENTRY_POINT) {
printk(BIOS_ERR, "Failed to load VSA.\n");
return;
}
diff --git a/src/device/oprom/yabel/vbe.c b/src/device/oprom/yabel/vbe.c
index 9dbe07cdd5..5952dae568 100644
--- a/src/device/oprom/yabel/vbe.c
+++ b/src/device/oprom/yabel/vbe.c
@@ -725,7 +725,9 @@ void vbe_set_graphics(void)
* cares. */
// int imagesize = 1024*768*2;
- unsigned char *jpeg = cbfs_find_file("bootsplash.jpg", CBFS_TYPE_BOOTSPLASH);
+ unsigned char *jpeg = cbfs_get_file_content(CBFS_DEFAULT_MEDIA,
+ "bootsplash.jpg",
+ CBFS_TYPE_BOOTSPLASH);
if (!jpeg) {
DEBUG_PRINTF_VBE("Could not find bootsplash.jpg\n");
return;
diff --git a/src/device/pci_rom.c b/src/device/pci_rom.c
index fe67515936..bb0d76066e 100644
--- a/src/device/pci_rom.c
+++ b/src/device/pci_rom.c
@@ -35,7 +35,8 @@ struct rom_header *pci_rom_probe(struct device *dev)
struct pci_data *rom_data;
/* If it's in FLASH, then don't check device for ROM. */
- rom_header = cbfs_load_optionrom(dev->vendor, dev->device, NULL);
+ rom_header = cbfs_load_optionrom(CBFS_DEFAULT_MEDIA, dev->vendor,
+ dev->device, NULL);
u32 vendev = (dev->vendor << 16) | dev->device;
u32 mapped_vendev = vendev;
@@ -45,8 +46,10 @@ struct rom_header *pci_rom_probe(struct device *dev)
if (!rom_header) {
if (vendev != mapped_vendev) {
- rom_header = cbfs_load_optionrom(mapped_vendev >> 16,
- mapped_vendev & 0xffff , NULL);
+ rom_header = cbfs_load_optionrom(
+ CBFS_DEFAULT_MEDIA,
+ mapped_vendev >> 16,
+ mapped_vendev & 0xffff, NULL);
}
}
diff --git a/src/drivers/pc80/mc146818rtc.c b/src/drivers/pc80/mc146818rtc.c
index d8d1778b5c..5ffa9d7fc4 100644
--- a/src/drivers/pc80/mc146818rtc.c
+++ b/src/drivers/pc80/mc146818rtc.c
@@ -190,7 +190,8 @@ int get_option(void *dest, const char *name)
namelen = strnlen(name, CMOS_MAX_NAME_LENGTH);
/* find the requested entry record */
- ct=cbfs_find_file("cmos_layout.bin", CBFS_COMPONENT_CMOS_LAYOUT);
+ ct = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, "cmos_layout.bin",
+ CBFS_COMPONENT_CMOS_LAYOUT);
if (!ct) {
printk(BIOS_ERR, "RTC: cmos_layout.bin could not be found. "
"Options are disabled\n");
@@ -268,7 +269,8 @@ int set_option(const char *name, void *value)
namelen = strnlen(name, CMOS_MAX_NAME_LENGTH);
/* find the requested entry record */
- ct=cbfs_find_file("cmos_layout.bin", CBFS_COMPONENT_CMOS_LAYOUT);
+ ct = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, "cmos_layout.bin",
+ CBFS_COMPONENT_CMOS_LAYOUT);
if (!ct) {
printk(BIOS_ERR, "cmos_layout.bin could not be found. Options are disabled\n");
return(-2);
diff --git a/src/include/cbfs.h b/src/include/cbfs.h
index b33e9327a8..9bfe2ceb96 100644
--- a/src/include/cbfs.h
+++ b/src/include/cbfs.h
@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
+ * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
*
* This file is dual-licensed. You can choose between:
* - The GNU GPL, version 2, as published by the Free Software Foundation
@@ -49,14 +50,38 @@
#ifndef _CBFS_H_
#define _CBFS_H_
-#include "cbfs_core.h"
-#include <boot/coreboot_tables.h>
+#include <cbfs_core.h>
-void *cbfs_load_payload(struct lb_memory *lb_mem, const char *name);
-void *cbfs_load_stage(const char *name);
-int cbfs_execute_stage(const char *name);
-void *cbfs_load_optionrom(u16 vendor, u16 device, void * dest);
+int cbfs_execute_stage(struct cbfs_media *media, const char *name);
+void *cbfs_load_optionrom(struct cbfs_media *media, uint16_t vendor,
+ uint16_t device, void * dest);
+void *cbfs_load_payload(struct cbfs_media *media, const char *name);
+void *cbfs_load_stage(struct cbfs_media *media, const char *name);
+
+/* Simple buffer for streaming media. */
+struct cbfs_simple_buffer {
+ char *buffer;
+ size_t allocated;
+ size_t size;
+ size_t last_allocate;
+};
+
+void *cbfs_simple_buffer_map(struct cbfs_simple_buffer *buffer,
+ struct cbfs_media *media,
+ size_t offset, size_t count);
+
+void *cbfs_simple_buffer_unmap(struct cbfs_simple_buffer *buffer,
+ const void *address);
+
+// Utility functions
int run_address(void *f);
+
+/* Defined in src/lib/selfboot.c */
+struct lb_memory;
int selfboot(struct lb_memory *mem, struct cbfs_payload *payload);
+
+/* Defined in individual arch / board implementation. */
+int init_default_cbfs_media(struct cbfs_media *media);
+
#endif
diff --git a/src/include/cbfs_core.h b/src/include/cbfs_core.h
index a3c54b18f7..20636e244a 100644
--- a/src/include/cbfs_core.h
+++ b/src/include/cbfs_core.h
@@ -3,6 +3,7 @@
*
* Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
* Copyright (C) 2012 Google, Inc.
+ * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
*
* This file is dual-licensed. You can choose between:
* - The GNU GPL, version 2, as published by the Free Software Foundation
@@ -50,6 +51,10 @@
#ifndef _CBFS_CORE_H_
#define _CBFS_CORE_H_
+#include <endian.h>
+#include <stddef.h>
+#include <stdint.h>
+
/** These are standard values for the known compression
alogrithms that coreboot knows about for stages and
payloads. Of course, other CBFS users can use whatever
@@ -74,24 +79,18 @@
#define CBFS_COMPONENT_CMOS_DEFAULT 0xaa
#define CBFS_COMPONENT_CMOS_LAYOUT 0x01aa
-
-/** this is the master cbfs header - it need to be
- located somewhere in the bootblock. Where it
- actually lives is up to coreboot. On x86, a
- pointer to this header will live at 0xFFFFFFFC,
- so we can easily find it. */
-
#define CBFS_HEADER_MAGIC 0x4F524243
-#if CONFIG_ARCH_X86
-#define CBFS_HEADPTR_ADDR 0xFFFFFFFC
-#elif CONFIG_ARCH_ARMV7
-/* FIXME: This could also be 0xFFFF0000 with HIVECS enabled */
-#define CBFS_HEADPTR_ADDR 0x0000000C
-#endif
#define CBFS_HEADER_VERSION1 0x31313131
#define CBFS_HEADER_VERSION2 0x31313132
#define CBFS_HEADER_VERSION CBFS_HEADER_VERSION2
+#define CBFS_HEADER_INVALID_ADDRESS ((void*)(0xffffffff))
+
+/** this is the master cbfs header - it need to be located somewhere available
+ to bootblock (to load romstage). Where it actually lives is up to coreboot.
+ On x86, a pointer to this header will live at 0xFFFFFFFC.
+ For other platforms, you need to define CONFIG_CBFS_HEADER_ROM_OFFSET */
+
struct cbfs_header {
uint32_t magic;
uint32_t version;
@@ -181,16 +180,49 @@ struct cbfs_optionrom {
#define CBFS_NAME(_c) (((char *) (_c)) + sizeof(struct cbfs_file))
#define CBFS_SUBHEADER(_p) ( (void *) ((((uint8_t *) (_p)) + ntohl((_p)->offset))) )
-/* returns pointer to file inside CBFS or NULL */
-struct cbfs_file *cbfs_find(const char *name);
+#define CBFS_MEDIA_INVALID_MAP_ADDRESS ((void*)(0xffffffff))
+#define CBFS_DEFAULT_MEDIA ((void*)(0x0))
+
+/* Media for CBFS to load files. */
+struct cbfs_media {
+
+ /* implementation dependent context, to hold resource references */
+ void *context;
-/* returns pointer to file data inside CBFS */
-void *cbfs_get_file(const char *name);
+ /* opens media and returns 0 on success, -1 on failure */
+ int (*open)(struct cbfs_media *media);
-/* returns pointer to file data inside CBFS after if type is correct */
-void *cbfs_find_file(const char *name, int type);
+ /* returns number of bytes read from media into dest, starting from
+ * offset for count of bytes */
+ size_t (*read)(struct cbfs_media *media, void *dest, size_t offset,
+ size_t count);
+
+ /* returns a pointer to memory with count of bytes from media source
+ * starting from offset, or CBFS_MEDIA_INVALID_MAP_ADDRESS on failure.
+ * Note: mapped data can't be free unless unmap is called, even if you
+ * do close first. */
+ void * (*map)(struct cbfs_media *media, size_t offset, size_t count);
+
+ /* returns NULL and releases the memory by address, which was allocated
+ * by map */
+ void * (*unmap)(struct cbfs_media *media, const void *address);
+
+ /* closes media and returns 0 on success, -1 on failure. */
+ int (*close)(struct cbfs_media *media);
+};
+
+/* returns pointer to a file entry inside CBFS or NULL */
+struct cbfs_file *cbfs_get_file(struct cbfs_media *media, const char *name);
+
+/* returns pointer to file content inside CBFS after if type is correct */
+void *cbfs_get_file_content(struct cbfs_media *media, const char *name,
+ int type);
/* returns 0 on success, -1 on failure */
int cbfs_decompress(int algo, void *src, void *dst, int len);
-struct cbfs_header *get_cbfs_header(void);
+
+/* returns a pointer to CBFS master header, or CBFS_HEADER_INVALID_ADDRESS
+ * on failure */
+const struct cbfs_header *cbfs_get_header(struct cbfs_media *media);
+
#endif
diff --git a/src/include/endian.h b/src/include/endian.h
new file mode 100644
index 0000000000..b511a491a8
--- /dev/null
+++ b/src/include/endian.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
+ *
+ * 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; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ENDIAN_H_
+#define _ENDIAN_H_
+
+#include <arch/byteorder.h>
+
+#endif
diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c
index 98672d4ae6..3e44582f4d 100644
--- a/src/lib/cbfs.c
+++ b/src/lib/cbfs.c
@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2008, Jordan Crouse <jordan@cosmicpenguin.net>
+ * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
*
* 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
@@ -17,57 +18,74 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
-#include <types.h>
-#include <string.h>
-#include <console/console.h>
+#ifdef LIBPAYLOAD
+# include <libpayload-config.h>
+# ifdef CONFIG_LZMA
+# include <lzma.h>
+# define CBFS_CORE_WITH_LZMA
+# endif
+# define CBFS_MINI_BUILD
+#elif defined(__SMM__)
+# define CBFS_MINI_BUILD
+#else
+# define CBFS_CORE_WITH_LZMA
+# include <lib.h>
+#endif
+
#include <cbfs.h>
-#include <lib.h>
-#include <arch/byteorder.h>
+#include <string.h>
-// use CBFS core
-#ifndef __SMM__
-#define CBFS_CORE_WITH_LZMA
+#ifdef LIBPAYLOAD
+# include <stdio.h>
+# define DEBUG(x...)
+# define LOG(x...) printf(x)
+# define ERROR(x...) printf(x)
+#else
+# include <console/console.h>
+# define ERROR(x...) printk(BIOS_ERR, "CBFS: " x)
+# define LOG(x...) printk(BIOS_INFO, "CBFS: " x)
+# if CONFIG_DEBUG_CBFS
+# define DEBUG(x...) printk(BIOS_SPEW, "CBFS: " x)
+# else
+# define DEBUG(x...)
+# endif
#endif
-#define phys_to_virt(x) (void*)(x)
-#define virt_to_phys(x) (uint32_t)(x)
-#define ERROR(x...) printk(BIOS_ERR, "CBFS: " x)
-#define LOG(x...) printk(BIOS_INFO, "CBFS: " x)
-#if CONFIG_DEBUG_CBFS
-#define DEBUG(x...) printk(BIOS_SPEW, "CBFS: " x)
+
+#if defined(CONFIG_CBFS_HEADER_ROM_OFFSET) && (CONFIG_CBFS_HEADER_ROM_OFFSET)
+# define CBFS_HEADER_ROM_ADDRESS (CONFIG_CBFS_HEADER_ROM_OFFSET)
#else
-#define DEBUG(x...)
+// Indirect address: only works on 32bit top-aligned systems.
+# define CBFS_HEADER_ROM_ADDRESS (*(uint32_t *)0xfffffffc)
#endif
-// FIXME: romstart/romend are fine on x86, but not on ARM
-#define romstart() 0xffffffff
-#define romend() 0
#include "cbfs_core.c"
#ifndef __SMM__
static inline int tohex4(unsigned int c)
{
- return (c<=9)?(c+'0'):(c-10+'a');
+ return (c <= 9) ? (c + '0') : (c - 10 + 'a');
}
static void tohex16(unsigned int val, char* dest)
{
- dest[0]=tohex4(val>>12);
- dest[1]=tohex4((val>>8) & 0xf);
- dest[2]=tohex4((val>>4) & 0xf);
- dest[3]=tohex4(val & 0xf);
+ dest[0] = tohex4(val>>12);
+ dest[1] = tohex4((val>>8) & 0xf);
+ dest[2] = tohex4((val>>4) & 0xf);
+ dest[3] = tohex4(val & 0xf);
}
-void *cbfs_load_optionrom(u16 vendor, u16 device, void * dest)
+void *cbfs_load_optionrom(struct cbfs_media *media, uint16_t vendor,
+ uint16_t device, void *dest)
{
- char name[17]="pciXXXX,XXXX.rom";
+ char name[17] = "pciXXXX,XXXX.rom";
struct cbfs_optionrom *orom;
- u8 *src;
+ uint8_t *src;
tohex16(vendor, name+3);
tohex16(device, name+8);
orom = (struct cbfs_optionrom *)
- cbfs_find_file(name, CBFS_TYPE_OPTIONROM);
+ cbfs_get_file_content(media, name, CBFS_TYPE_OPTIONROM);
if (orom == NULL)
return NULL;
@@ -77,10 +95,10 @@ void *cbfs_load_optionrom(u16 vendor, u16 device, void * dest)
* in the common case, the expansion rom is uncompressed, we
* pass 0 in for the dest, and all we have to do is find the rom and
* return a pointer to it.
- */
+ */
/* BUG: the cbfstool is (not yet) including a cbfs_optionrom header */
- src = ((unsigned char *) orom); // + sizeof(struct cbfs_optionrom);
+ src = (uint8_t *)orom; // + sizeof(struct cbfs_optionrom);
if (! dest)
return src;
@@ -94,27 +112,27 @@ void *cbfs_load_optionrom(u16 vendor, u16 device, void * dest)
return dest;
}
-void * cbfs_load_stage(const char *name)
+void * cbfs_load_stage(struct cbfs_media *media, const char *name)
{
struct cbfs_stage *stage = (struct cbfs_stage *)
- cbfs_find_file(name, CBFS_TYPE_STAGE);
+ cbfs_get_file_content(media, name, CBFS_TYPE_STAGE);
/* this is a mess. There is no ntohll. */
/* for now, assume compatible byte order until we solve this. */
- u32 entry;
+ uint32_t entry;
if (stage == NULL)
return (void *) -1;
LOG("loading stage %s @ 0x%x (%d bytes), entry @ 0x%llx\n",
name,
- (u32) stage->load, stage->memlen,
+ (uint32_t) stage->load, stage->memlen,
stage->entry);
- memset((void *) (u32) stage->load, 0, stage->memlen);
+ memset((void *) (uint32_t) stage->load, 0, stage->memlen);
if (cbfs_decompress(stage->compression,
((unsigned char *) stage) +
sizeof(struct cbfs_stage),
- (void *) (u32) stage->load,
+ (void *) (uint32_t) stage->load,
stage->len))
return (void *) -1;
@@ -126,10 +144,10 @@ void * cbfs_load_stage(const char *name)
return (void *) entry;
}
-int cbfs_execute_stage(const char *name)
+int cbfs_execute_stage(struct cbfs_media *media, const char *name)
{
struct cbfs_stage *stage = (struct cbfs_stage *)
- cbfs_find_file(name, CBFS_TYPE_STAGE);
+ cbfs_get_file_content(media, name, CBFS_TYPE_STAGE);
if (stage == NULL)
return 1;
@@ -141,8 +159,52 @@ int cbfs_execute_stage(const char *name)
}
/* FIXME: This isn't right */
- LOG("run @ %p\n", (void *) ntohl((u32) stage->entry));
- return run_address((void *) (intptr_t)ntohll(stage->entry));
+ LOG("run @ %p\n", (void *) ntohl((uint32_t) stage->entry));
+ return run_address((void *)(uintptr_t)ntohll(stage->entry));
+}
+
+void *cbfs_load_payload(struct cbfs_media *media, const char *name)
+{
+ return (struct cbfs_payload *)cbfs_get_file_content(
+ media, name, CBFS_TYPE_PAYLOAD);
+}
+
+/* Simple buffer */
+
+void *cbfs_simple_buffer_map(struct cbfs_simple_buffer *buffer,
+ struct cbfs_media *media,
+ size_t offset, size_t count) {
+ void *address = buffer->buffer + buffer->allocated;;
+ DEBUG("simple_buffer_map(offset=%d, count=%d): "
+ "allocated=%d, size=%d, last_allocate=%d\n",
+ offset, count, buffer->allocated, buffer->size,
+ buffer->last_allocate);
+ if (buffer->allocated + count >= buffer->size)
+ return CBFS_MEDIA_INVALID_MAP_ADDRESS;
+ if (media->read(media, address, offset, count) != count) {
+ ERROR("simple_buffer: fail to read %zd bytes from 0x%zx\n",
+ count, offset);
+ return CBFS_MEDIA_INVALID_MAP_ADDRESS;
+ }
+ buffer->allocated += count;
+ buffer->last_allocate = count;
+ return address;
+}
+
+void *cbfs_simple_buffer_unmap(struct cbfs_simple_buffer *buffer,
+ const void *address) {
+ // TODO Add simple buffer management so we can free more than last
+ // allocated one.
+ DEBUG("simple_buffer_unmap(address=0x%p): "
+ "allocated=%d, size=%d, last_allocate=%d\n",
+ address, buffer->allocated, buffer->size,
+ buffer->last_allocate);
+ if ((buffer->buffer + buffer->allocated - buffer->last_allocate) ==
+ address) {
+ buffer->allocated -= buffer->last_allocate;
+ buffer->last_allocate = 0;
+ }
+ return NULL;
}
/**
@@ -158,4 +220,5 @@ int run_address(void *f)
v = f;
return v();
}
+
#endif
diff --git a/src/lib/cbfs_core.c b/src/lib/cbfs_core.c
index 15cb68e9bc..6e4f4890c4 100644
--- a/src/lib/cbfs_core.c
+++ b/src/lib/cbfs_core.c
@@ -1,7 +1,8 @@
/*
- * This file is part of the libpayload project.
+ * This file is part of the coreboot project.
*
* Copyright (C) 2011 secunet Security Networks AG
+ * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -27,14 +28,15 @@
* SUCH DAMAGE.
*/
-/* The CBFS core requires a couple of #defines or functions to adapt it to the target environment:
+/* The CBFS core requires a couple of #defines or functions to adapt it to the
+ * target environment:
*
* CBFS_CORE_WITH_LZMA (must be #define)
* if defined, ulzma() must exist for decompression of data streams
*
- * phys_to_virt(x), virt_to_phys(x)
- * translate physical addresses to virtual and vice versa
- * can be idempotent if no mapping is necessary.
+ * CBFS_HEADER_ROM_ADDRESS
+ * ROM address (offset) of CBFS header. Underlying CBFS media may interpret
+ * it in other way so we call this "address".
*
* ERROR(x...)
* print an error message x (in printf format)
@@ -45,105 +47,134 @@
* DEBUG(x...)
* print a debug message x (in printf format)
*
- * romstart()
- * returns the start address of the ROM image, or 0xffffffff if ROM is
- * top-aligned. This is a physical address.
- *
- * romend()
- * returns the highest address of the ROM image + 1, for use if
- * romstart() == 0xffffffff. This is a physical address.
*/
-#include <cbfs_core.h>
-
+#include <cbfs.h>
+#include <string.h>
-/* returns pointer to master header or 0xffffffff if not found */
-struct cbfs_header *get_cbfs_header(void)
+/* returns a pointer to CBFS master header, or CBFS_HEADER_INVALID_ADDRESS
+ * on failure */
+const struct cbfs_header *cbfs_get_header(struct cbfs_media *media)
{
- struct cbfs_header *header;
-
- /* find header */
- if (romstart() == 0xffffffff) {
- header = (struct cbfs_header*)phys_to_virt(*(uint32_t*)phys_to_virt(romend() + CBFS_HEADPTR_ADDR));
- } else {
- // FIXME: where's the master header on ARM (our current bottom-aligned platform)?
- header = NULL;
+ const struct cbfs_header *header;
+ struct cbfs_media default_media;
+
+ if (media == CBFS_DEFAULT_MEDIA) {
+ media = &default_media;
+ if (init_default_cbfs_media(media) != 0) {
+ ERROR("Failed to initializee default media.\n");
+ return NULL;
+ }
+ }
+
+ media->open(media);
+ DEBUG("CBFS_HEADER_ROM_ADDRESS: 0x%x/0x%x\n", CBFS_HEADER_ROM_ADDRESS,
+ CONFIG_ROM_SIZE);
+ header = media->map(media, CBFS_HEADER_ROM_ADDRESS, sizeof(*header));
+ media->close(media);
+
+ if (header == CBFS_MEDIA_INVALID_MAP_ADDRESS) {
+ ERROR("Failed to load CBFS header from 0x%x\n",
+ CBFS_HEADER_ROM_ADDRESS);
+ return CBFS_HEADER_INVALID_ADDRESS;
}
+
if (CBFS_HEADER_MAGIC != ntohl(header->magic)) {
- ERROR("Could not find valid CBFS master header at %p: %x vs %x.\n", header, CBFS_HEADER_MAGIC, ntohl(header->magic));
+ ERROR("Could not find valid CBFS master header at %x: "
+ "%x vs %x.\n", CBFS_HEADER_ROM_ADDRESS, CBFS_HEADER_MAGIC,
+ ntohl(header->magic));
if (header->magic == 0xffffffff) {
ERROR("Maybe ROM is not mapped properly?\n");
}
- return (void*)0xffffffff;
+ return CBFS_HEADER_INVALID_ADDRESS;
}
return header;
}
-// by must be power-of-two
-#define CBFS_ALIGN(val, by) (typeof(val))((uint32_t)(val + by - 1) & (uint32_t)~(by - 1))
-#define CBFS_ALIGN_UP(val, by) CBFS_ALIGN(val + 1, by)
-
/* public API starts here*/
-struct cbfs_file *cbfs_find(const char *name)
+struct cbfs_file *cbfs_get_file(struct cbfs_media *media, const char *name)
{
- struct cbfs_header *header = get_cbfs_header();
- if (header == (void*)0xffffffff) return NULL;
-
- LOG("Looking for '%s'\n", name);
-
- void *data, *dataend, *origdata;
- /* find first entry */
- if (romstart() == 0xffffffff) {
- data = (void*)phys_to_virt(romend()) - ntohl(header->romsize) + ntohl(header->offset);
- dataend = (void*)phys_to_virt(romend());
- } else {
- data = (void*)phys_to_virt(romstart()) + ntohl(header->offset);
- dataend = (void*)phys_to_virt(romstart()) + ntohl(header->romsize);
- }
- dataend -= ntohl(header->bootblocksize);
-
- int align = ntohl(header->align);
-
- origdata = data;
- while ((data < (dataend - 1)) && (data >= origdata)) {
- struct cbfs_file *file = data;
- if (memcmp(CBFS_FILE_MAGIC, file->magic, strlen(CBFS_FILE_MAGIC)) != 0) {
- // no file header found. corruption?
- // proceed in aligned steps to resynchronize
- LOG("ERROR: No file header found at %p, attempting to recover by searching for header\n", data);
- data = phys_to_virt(CBFS_ALIGN_UP(virt_to_phys(data), align));
- continue;
- }
- DEBUG("Check '%s'\n", CBFS_NAME(file));
- if (strcmp(CBFS_NAME(file), name) == 0) {
- LOG("found.\n");
- return file;
- }
- void *olddata = data;
- data = phys_to_virt(CBFS_ALIGN(virt_to_phys(data) + ntohl(file->len) + ntohl(file->offset), align));
- if (olddata > data) {
- LOG("Something is wrong here. File chain moved from %p to %p\n", olddata, data);
+ const char *file_name;
+ uint32_t offset, align, romsize, name_len;
+ const struct cbfs_header *header;
+ struct cbfs_file file, *file_ptr;
+ struct cbfs_media default_media;
+
+ if (media == CBFS_DEFAULT_MEDIA) {
+ media = &default_media;
+ if (init_default_cbfs_media(media) != 0) {
+ ERROR("Failed to initializee default media.\n");
return NULL;
}
}
- return NULL;
-}
-
-void *cbfs_get_file(const char *name)
-{
- struct cbfs_file *file = cbfs_find(name);
- if (file == NULL) {
- ERROR("Could not find file '%s'.\n", name);
+ if (CBFS_HEADER_INVALID_ADDRESS == (header = cbfs_get_header(media)))
return NULL;
- }
- return (void*)CBFS_SUBHEADER(file);
+ // Logical offset (for source media) of first file.
+ offset = ntohl(header->offset);
+ align = ntohl(header->align);
+ romsize = ntohl(header->romsize);
+
+ // TODO header->romsize seems broken now on ARM. Remove this when it's
+ // fixed.
+#if defined(CONFIG_ARCH_ARMV7) && CONFIG_ARCH_ARMV7
+ romsize = CONFIG_ROM_SIZE;
+#endif
+ DEBUG("offset: 0x%x, align: %d, romsize: %d\n", offset, align, romsize);
+
+ LOG("Looking for '%s' starting from 0x%x.\n", name, offset);
+ media->open(media);
+ while (offset < romsize &&
+ media->read(media, &file, offset, sizeof(file)) == sizeof(file)) {
+ if (memcmp(CBFS_FILE_MAGIC, file.magic,
+ sizeof(file.magic)) != 0) {
+ uint32_t new_align = align;
+ if (offset % align)
+ new_align += align - (offset % align);
+ ERROR("ERROR: No file header found at 0x%xx - "
+ "try next aligned address: 0x%x.\n", offset,
+ offset + new_align);
+ offset += new_align;
+ continue;
+ }
+ name_len = ntohl(file.offset) - sizeof(file);
+ DEBUG(" - load entry 0x%x file name (%d bytes)...\n", offset,
+ name_len);
+
+ // load file name (arbitrary length).
+ file_name = (const char *)media->map(
+ media, offset + sizeof(file), name_len);
+ if (file_name == CBFS_MEDIA_INVALID_MAP_ADDRESS) {
+ ERROR("ERROR: Failed to get filename: 0x%x.\n", offset);
+ } else if (strcmp(file_name, name) == 0) {
+ int file_offset = ntohl(file.offset),
+ file_len = ntohl(file.len);
+ LOG("Found file (offset=0x%x, len=%d).\n",
+ offset + file_offset, file_len);
+ media->unmap(media, file_name);
+ file_ptr = media->map(media, offset,
+ file_offset + file_len);
+ media->close(media);
+ return file_ptr;
+ } else {
+ LOG(" (unmatched file @0x%x: %s)\n", offset, file_name);
+ media->unmap(media, file_name);
+ }
+
+ // Move to next file.
+ offset += ntohl(file.len) + ntohl(file.offset);
+ if (offset % align)
+ offset += align - (offset % align);
+ }
+ media->close(media);
+ ERROR("ERROR: Not found.\n");
+ return NULL;
}
-void *cbfs_find_file(const char *name, int type)
+void *cbfs_get_file_content(struct cbfs_media *media, const char *name, int type)
{
- struct cbfs_file *file = cbfs_find(name);
+ struct cbfs_file *file = cbfs_get_file(media, name);
if (file == NULL) {
ERROR("Could not find file '%s'.\n", name);
@@ -151,11 +182,12 @@ void *cbfs_find_file(const char *name, int type)
}
if (ntohl(file->type) != type) {
- ERROR("File '%s' is of type %x, but we requested %x.\n", name, ntohl(file->type), type);
+ ERROR("File '%s' is of type %x, but we requested %x.\n", name,
+ ntohl(file->type), type);
return NULL;
}
- return (void*)CBFS_SUBHEADER(file);
+ return (void *)CBFS_SUBHEADER(file);
}
int cbfs_decompress(int algo, void *src, void *dst, int len)
@@ -172,7 +204,9 @@ int cbfs_decompress(int algo, void *src, void *dst, int len)
return -1;
#endif
default:
- ERROR("tried to decompress %d bytes with algorithm #%x, but that algorithm id is unsupported.\n", len, algo);
+ ERROR("tried to decompress %d bytes with algorithm #%x,"
+ "but that algorithm id is unsupported.\n", len,
+ algo);
return -1;
}
}
diff --git a/src/lib/hardwaremain.c b/src/lib/hardwaremain.c
index eed243ad75..85c05f5093 100644
--- a/src/lib/hardwaremain.c
+++ b/src/lib/hardwaremain.c
@@ -59,6 +59,7 @@ void hardwaremain(int boot_complete);
void hardwaremain(int boot_complete)
{
struct lb_memory *lb_mem;
+ void *payload;
timestamp_stash(TS_START_RAMSTAGE);
post_code(POST_ENTRY_RAMSTAGE);
@@ -141,8 +142,8 @@ void hardwaremain(int boot_complete)
timestamp_add_now(TS_LOAD_PAYLOAD);
- void *payload;
- payload = cbfs_load_payload(lb_mem, CONFIG_CBFS_PREFIX "/payload");
+ payload = cbfs_load_payload(CBFS_DEFAULT_MEDIA,
+ CONFIG_CBFS_PREFIX "/payload");
if (! payload)
die("Could not find a payload\n");
diff --git a/src/lib/selfboot.c b/src/lib/selfboot.c
index c5fb62adca..56124da317 100644
--- a/src/lib/selfboot.c
+++ b/src/lib/selfboot.c
@@ -536,12 +536,3 @@ out:
return 0;
}
-void *cbfs_load_payload(struct lb_memory *lb_mem, const char *name)
-{
- struct cbfs_payload *payload;
-
- payload = (struct cbfs_payload *)cbfs_find_file(name, CBFS_TYPE_PAYLOAD);
-
- return payload;
-}
-
diff --git a/src/mainboard/google/snow/bootblock.c b/src/mainboard/google/snow/bootblock.c
index d5ee0a378a..5b3efa025c 100644
--- a/src/mainboard/google/snow/bootblock.c
+++ b/src/mainboard/google/snow/bootblock.c
@@ -39,9 +39,13 @@
#include <drivers/maxim/max77686/max77686.h>
#include <console/console.h>
+#include <cbfs.h>
#define EXYNOS5_CLOCK_BASE 0x10010000
+/* TODO Move to Makefile.inc once we support adding bootblock stage files. */
+#include "cpu/samsung/exynos5-common/spi.c"
+
/* FIXME(dhendrix): Can we move this SPI stuff elsewhere? */
static void spi_rx_tx(struct exynos_spi *regs, int todo,
void *dinp, void const *doutp, int i)
diff --git a/src/mainboard/samsung/lumpy/romstage.c b/src/mainboard/samsung/lumpy/romstage.c
index 5600cf616d..9bc193bb56 100644
--- a/src/mainboard/samsung/lumpy/romstage.c
+++ b/src/mainboard/samsung/lumpy/romstage.c
@@ -301,7 +301,7 @@ void main(unsigned long bist)
break;
}
- spd_file = cbfs_find("spd.bin");
+ spd_file = cbfs_get_file(CBFS_DEFAULT_MEDIA, "spd.bin");
if (!spd_file)
die("SPD data not found.");
if (spd_file->len < (spd_index + 1) * 256)
diff --git a/src/northbridge/amd/agesa/family15tn/fam15tn_callouts.c b/src/northbridge/amd/agesa/family15tn/fam15tn_callouts.c
index 7c3b0ac9cf..8c5605c041 100644
--- a/src/northbridge/amd/agesa/family15tn/fam15tn_callouts.c
+++ b/src/northbridge/amd/agesa/family15tn/fam15tn_callouts.c
@@ -398,7 +398,9 @@ AGESA_STATUS fam15tn_DefaultRet (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
AGESA_STATUS fam15tn_HookGfxGetVbiosImage(UINT32 Func, UINT32 FchData, VOID *ConfigPrt)
{
GFX_VBIOS_IMAGE_INFO *pVbiosImageInfo = (GFX_VBIOS_IMAGE_INFO *)ConfigPrt;
- pVbiosImageInfo->ImagePtr = cbfs_find_file("pci"CONFIG_VGA_BIOS_ID".rom", CBFS_TYPE_OPTIONROM);
+ pVbiosImageInfo->ImagePtr = cbfs_get_file_content(
+ CBFS_DEFAULT_MEDIA, "pci"CONFIG_VGA_BIOS_ID".rom",
+ CBFS_TYPE_OPTIONROM);
/* printk(BIOS_DEBUG, "IMGptr=%x\n", pVbiosImageInfo->ImagePtr); */
return pVbiosImageInfo->ImagePtr == NULL ? AGESA_WARNING : AGESA_SUCCESS;
}
diff --git a/src/northbridge/intel/i82830/vga.c b/src/northbridge/intel/i82830/vga.c
index 1ec7f87b6b..40e7d9d9d2 100644
--- a/src/northbridge/intel/i82830/vga.c
+++ b/src/northbridge/intel/i82830/vga.c
@@ -32,7 +32,7 @@
static void vga_init(device_t dev)
{
printk(BIOS_INFO, "Starting Graphics Initialization\n");
- struct cbfs_file *file = cbfs_find("mbi.bin");
+ struct cbfs_file *file = cbfs_get_file(CBFS_DEFAULT_MEDIA, "mbi.bin");
void *mbi = NULL;
unsigned int mbi_len = 0;
diff --git a/src/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c
index b5a1c23f94..f25aaa1195 100644
--- a/src/northbridge/intel/sandybridge/raminit.c
+++ b/src/northbridge/intel/sandybridge/raminit.c
@@ -252,7 +252,9 @@ void sdram_initialize(struct pei_data *pei_data)
pei_data->tx_byte = console_tx_byte;
/* Locate and call UEFI System Agent binary. */
- entry = (unsigned long)cbfs_find_file("mrc.bin", 0xab);
+ /* TODO make MRC blob (0xab?) defined in cbfs_core.h. */
+ entry = (unsigned long)cbfs_get_file_content(
+ CBFS_DEFAULT_MEDIA, "mrc.bin", 0xab);
if (entry) {
int rv;
asm volatile (