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kboot: Forward DCP firmware versions into the DT
Signed-off-by: Hector Martin <marcan@marcan.st>
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parent
e1b2c45f34
commit
2abf2b1693
1 changed files with 39 additions and 0 deletions
39
src/kboot.c
39
src/kboot.c
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@ -1268,6 +1268,37 @@ static struct disp_mapping dcpext_reserved_regions_t600x[MAX_DCPEXT][2] = {
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#define ARRAY_SIZE(s) (sizeof(s) / sizeof((s)[0]))
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static int dt_set_dcp_firmware(const char *alias)
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{
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const char *path = fdt_get_alias(dt, alias);
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if (!path)
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return 0;
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int node = fdt_path_offset(dt, path);
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if (node < 0)
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return 0;
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if (firmware_set_fdt(dt, node, "apple,firmware-version", &os_firmware) < 0)
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bail("FDT: Could not set apple,firmware-version for %s\n", path);
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const struct fw_version_info *compat;
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switch (os_firmware.version) {
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case V12_4:
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compat = &fw_versions[V12_3];
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break;
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default:
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compat = &os_firmware;
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break;
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}
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if (firmware_set_fdt(dt, node, "apple,firmware-compat", compat) < 0)
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bail("FDT: Could not set apple,firmware-compat for %s\n", path);
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return 0;
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}
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static int dt_set_display(void)
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{
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/* lock dart-disp0 to prevent old software from resetting it */
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@ -1281,6 +1312,11 @@ static int dt_set_display(void)
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* they are missing. */
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int ret = 0;
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ret = dt_set_dcp_firmware("dcp");
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if (ret)
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return ret;
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if (!fdt_node_check_compatible(dt, 0, "apple,t8103")) {
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ret = dt_carveout_reserved_regions("dcp", "disp0", "disp0_piodma",
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disp_reserved_regions_t8103,
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@ -1312,6 +1348,9 @@ static int dt_set_display(void)
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char dcpext_alias[16];
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snprintf(dcpext_alias, sizeof(dcpext_alias), "dcpext%d", n);
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ret = dt_set_dcp_firmware(dcpext_alias);
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if (ret)
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break;
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ret = dt_carveout_reserved_regions(dcpext_alias, NULL, NULL,
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dcpext_reserved_regions_t600x[n],
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ARRAY_SIZE(dcpext_reserved_regions_t600x[n]));
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