util/ifdtool: Fix region access control for SKL/KBL
The default values used by ifdtool for setting region access control do not match the expected values for SKL/KBL as per the SPI programming guide. This change adds platform "sklkbl" that sets region access control bits differently for SKL/KBL images. BUG=b:76098647 BRANCH=poppy TEST=Verified that the access control bits on KBL images is set correctly. Change-Id: I1328d8006c25be282b3223268d8f1fd0a64e2ed3 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/25306 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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@ -826,6 +826,24 @@ static void lock_descriptor(const char *filename, char *image, int size)
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/* TXE can only write Device Expansion */
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fmba->flmstr2 |= 0x20 << wr_shift;
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break;
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case PLATFORM_SKLKBL:
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/* CPU/BIOS can read descriptor, BIOS and GbE. */
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fmba->flmstr1 |= 0xb << rd_shift;
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/* CPU/BIOS can write BIOS and Gbe. */
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fmba->flmstr1 |= 0xa << wr_shift;
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/* ME can read descriptor, ME and GbE. */
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fmba->flmstr2 |= 0xd << rd_shift;
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/* ME can write ME. */
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fmba->flmstr2 |= 0x4 << wr_shift;
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/* GbE can read GbE and descriptor. */
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fmba->flmstr3 |= 0x9 << rd_shift;
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/* GbE can write GbE. */
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fmba->flmstr3 |= 0x8 << wr_shift;
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/* EC can read EC and descriptor. */
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fmba->flmstr5 |= 0x101 << rd_shift;
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/* EC can write EC region. */
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fmba->flmstr5 |= 0x100 << wr_shift;
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break;
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default:
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/* CPU/BIOS can read descriptor, BIOS, and GbE. */
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fmba->flmstr1 |= 0xb << rd_shift;
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@ -1325,6 +1343,8 @@ int main(int argc, char *argv[])
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case 'p':
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if (!strcmp(optarg, "aplk")) {
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platform = PLATFORM_APOLLOLAKE;
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} else if (!strcmp(optarg, "sklkbl")) {
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platform = PLATFORM_SKLKBL;
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} else {
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fprintf(stderr, "Unknown platform: %s\n", optarg);
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exit(EXIT_FAILURE);
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@ -22,7 +22,8 @@ enum ifd_version {
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};
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enum platform {
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PLATFORM_APOLLOLAKE
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PLATFORM_APOLLOLAKE,
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PLATFORM_SKLKBL,
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};
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#define LAYOUT_LINELEN 80
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