mb/google/hatch: Distinguish SKU1 and 2 for eMMC and SSD respectively

1. SKU1 for eMMC
2. SKU2 for SSD

BUG=b:140008849, b:140573677
TEST=Verify SSD is disabled when SKU ID = 2/4/21/22

Signed-off-by: Peichao Wang <peichao.wang@bitland.corp-partner.google.com>
Change-Id: I827e6f1420801d43e0eb4708b8b8ad1692ef7e9f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35204
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Marco Chen <marcochen@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/src/mainboard/google/hatch/variants/akemi/variant.c b/src/mainboard/google/hatch/variants/akemi/variant.c
new file mode 100644
index 0000000000..0717e810ce
--- /dev/null
+++ b/src/mainboard/google/hatch/variants/akemi/variant.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 Google LLC
+ *
+ * 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.
+ */
+
+#include <baseboard/variants.h>
+#include <chip.h>
+#include <soc/pci_devs.h>
+#include <ec/google/chromeec/ec.h>
+
+void variant_devtree_update(void)
+{
+	uint32_t sku_id;
+	struct device *emmc_host;
+	struct device *ssd_host;
+	config_t *cfg = config_of_path(SA_DEVFN_ROOT);
+	emmc_host = pcidev_path_on_root(PCH_DEVFN_EMMC);
+	ssd_host = pcidev_path_on_root(PCH_DEVFN_SATA);
+
+	/* SKU ID 2 doesn't have a eMMC device, hence disable it. */
+	sku_id = get_board_sku();
+	if (sku_id == 2) {
+		if (emmc_host == NULL)
+			return;
+		emmc_host->enabled = 0;
+		cfg->ScsEmmcHs400Enabled = 0;
+	}
+
+	/* SKU ID 1 doesn't have a SSD device, hence disable it. */
+	if (sku_id == 1) {
+		if (ssd_host == NULL)
+			return;
+		ssd_host->enabled = 0;
+		cfg->SataSalpSupport = 0;
+		cfg->SataMode = 0;
+		cfg->SataPortsEnable[1] = 0;
+		cfg->SataPortsDevSlp[1] = 0;
+		cfg->satapwroptimize = 0;
+	}
+}