generic platform: If /bmc in device tree, attempt to init one
For the most part, this gets us somewhere on some OpenPOWER systems
before there's a platform file for that machine.
Useful in bringup only, and marked as such with scary looking log
messages.
#include <errorlog.h>
#include <bt.h>
#include <nvram.h>
+#include <platforms/astbmc/astbmc.h>
bool manufacturing_mode = false;
struct platform platform;
@@ -105,7 +106,17 @@ opal_call(OPAL_CEC_REBOOT2, opal_cec_reboot2, 2);
static bool generic_platform_probe(void)
{
+ if (dt_find_by_path(dt_root, "bmc")) {
+ /* We appear to have a BMC... so let's cross our fingers
+ * and see if we can do anything!
+ */
+ prlog(PR_ERR, "GENERIC BMC PLATFORM: **GUESSING** that there's "
+ "*maybe* a BMC we can talk to.\n");
+ prlog(PR_ERR, "THIS IS ****UNSUPPORTED****, BRINGUP USE ONLY.\n");
+ astbmc_early_init();
+ } else {
uart_init();
+ }
return true;
}
@@ -115,8 +126,15 @@ static void generic_platform_init(void)
if (uart_enabled())
set_opal_console(&uart_opal_con);
+ if (dt_find_by_path(dt_root, "bmc")) {
+ prlog(PR_ERR, "BMC-GUESSWORK: Here be dragons with a taste for human flesh\n");
+ astbmc_init();
+ } else {
+ /* Otherwise we go down the ultra-minimal path */
+
/* Enable a BT interface if we find one too */
bt_init();
+ }
/* Fake a real time clock */
fake_rtc_init();
@@ -127,6 +145,23 @@ static int64_t generic_cec_power_down(uint64_t request __unused)
return OPAL_UNSUPPORTED;
}
+static int generic_resource_loaded(enum resource_id id, uint32_t subid)
+{
+ if (dt_find_by_path(dt_root, "bmc"))
+ return flash_resource_loaded(id, subid);
+
+ return OPAL_EMPTY;
+}
+
+static int generic_start_preload_resource(enum resource_id id, uint32_t subid,
+ void *buf, size_t *len)
+{
+ if (dt_find_by_path(dt_root, "bmc"))
+ return flash_start_preload_resource(id, subid, buf, len);
+
+ return OPAL_EMPTY;
+}
+
static struct bmc_platform generic_bmc = {
.name = "generic",
};
@@ -140,6 +175,8 @@ static struct platform generic_platform = {
.nvram_start_read = fake_nvram_start_read,
.nvram_write = fake_nvram_write,
.cec_power_down = generic_cec_power_down,
+ .start_preload_resource = generic_start_preload_resource,
+ .resource_loaded = generic_resource_loaded,
};
const struct bmc_platform *bmc_platform = &generic_bmc;
