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authorFurquan Shaikh <furquan@google.com>2018-05-02 23:29:04 -0700
committerFurquan Shaikh <furquan@google.com>2018-05-04 01:15:52 +0000
commitc0257dd7ae9c8899b49c05ef74d9c5a91ee71d4f (patch)
tree1654b7ec1711748e63532b618ea73f9fc5233660 /util/ifdtool/ifdtool.c
parentf658edf434421a2cb475c753c08e6d92e2be58c1 (diff)
downloadcoreboot-c0257dd7ae9c8899b49c05ef74d9c5a91ee71d4f.tar.xz
ifdtool: Add a list of known platforms that support IFD_VERSION_2
ifdtool has relied on one of the fields within FCBA(read_freq) to determine whether a platform supports IFD_VERSION_1 or IFD_VERSION_2. However, newer platforms like GLK and CNL do not have read_freq field in FCBA and so the value of these bits cannot be used as an indicator to distinguish IFD versions. In the long run, we need to re-write ifdtool to have a better mapping of SoC to IFD fields. But until that is done, this change adds a list of platforms that we know do not support read_freq field but still use IFD_VERSION_2. This change also updates GLK and CNL to pass in platform parameter to ifdtool. BUG=b:79109029, b:69270831 Change-Id: I36c49f4dcb480ad53b0538ad12292fb94b0e3934 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26023 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'util/ifdtool/ifdtool.c')
-rw-r--r--util/ifdtool/ifdtool.c59
1 files changed, 49 insertions, 10 deletions
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c
index 12dfdd1bf6..d99bdb9dc8 100644
--- a/util/ifdtool/ifdtool.c
+++ b/util/ifdtool/ifdtool.c
@@ -126,14 +126,35 @@ static fmsba_t *find_fmsba(char *image, int size)
}
/*
+ * Some newer platforms have re-defined the FCBA field that was used to
+ * distinguish IFD v1 v/s v2. Define a list of platforms that we know do not
+ * have the required FCBA field, but are IFD v2 and return true if current
+ * platform is one of them.
+ */
+static int is_platform_ifd_2(void)
+{
+ static const int ifd_2_platforms[] = {
+ PLATFORM_GLK,
+ PLATFORM_CNL,
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(ifd_2_platforms); i++) {
+ if (platform == ifd_2_platforms[i])
+ return 1;
+ }
+
+ return 0;
+}
+
+/*
* There is no version field in the descriptor so to determine
* if this is a new descriptor format we check the hardcoded SPI
* read frequency to see if it is fixed at 20MHz or 17MHz.
*/
-static void check_ifd_version(char *image, int size)
+static int get_ifd_version_from_fcba(char *image, int size)
{
int read_freq;
-
const fcba_t *fcba = find_fcba(image, size);
if (!fcba)
exit(EXIT_FAILURE);
@@ -142,14 +163,10 @@ static void check_ifd_version(char *image, int size)
switch (read_freq) {
case SPI_FREQUENCY_20MHZ:
- ifd_version = IFD_VERSION_1;
- max_regions = MAX_REGIONS_OLD;
- break;
+ return IFD_VERSION_1;
case SPI_FREQUENCY_17MHZ:
case SPI_FREQUENCY_50MHZ_30MHZ:
- ifd_version = IFD_VERSION_2;
- max_regions = MAX_REGIONS;
- break;
+ return IFD_VERSION_2;
default:
fprintf(stderr, "Unknown descriptor version: %d\n",
read_freq);
@@ -157,6 +174,19 @@ static void check_ifd_version(char *image, int size)
}
}
+static void check_ifd_version(char *image, int size)
+{
+ if (is_platform_ifd_2())
+ ifd_version = IFD_VERSION_2;
+ else
+ ifd_version = get_ifd_version_from_fcba(image, size);
+
+ if (ifd_version == IFD_VERSION_1)
+ max_regions = MAX_REGIONS_OLD;
+ else
+ max_regions = MAX_REGIONS;
+}
+
static region_t get_region(const frba_t *frba, unsigned int region_type)
{
int base_mask;
@@ -816,7 +846,8 @@ static void lock_descriptor(const char *filename, char *image, int size)
}
switch (platform) {
- case PLATFORM_APOLLOLAKE:
+ case PLATFORM_APL:
+ case PLATFORM_GLK:
/* CPU/BIOS can read descriptor and BIOS */
fmba->flmstr1 |= 0x3 << rd_shift;
/* CPU/BIOS can write BIOS */
@@ -1153,6 +1184,9 @@ static void print_usage(const char *name)
" -u | --unlock Unlock firmware descriptor and ME region\n"
" -p | --platform Add platform-specific quirks\n"
" aplk - Apollo Lake\n"
+ " cnl - Cannon Lake\n"
+ " glk - Gemini Lake\n"
+ " sklkbl - Skylake/Kaby Lake\n"
" -v | --version: print the version\n"
" -h | --help: print this help\n\n"
"<region> is one of Descriptor, BIOS, ME, GbE, Platform\n"
@@ -1342,13 +1376,18 @@ int main(int argc, char *argv[])
break;
case 'p':
if (!strcmp(optarg, "aplk")) {
- platform = PLATFORM_APOLLOLAKE;
+ platform = PLATFORM_APL;
+ } else if (!strcmp(optarg, "cnl")) {
+ platform = PLATFORM_CNL;
+ } else if (!strcmp(optarg, "glk")) {
+ platform = PLATFORM_GLK;
} else if (!strcmp(optarg, "sklkbl")) {
platform = PLATFORM_SKLKBL;
} else {
fprintf(stderr, "Unknown platform: %s\n", optarg);
exit(EXIT_FAILURE);
}
+ fprintf(stderr, "Platform is: %s\n", optarg);
break;
case 'v':
print_version();