mb/prodrive/hermes: Add new mainboard port

This patch adds support for the Prodrive Hermes mainboard.

Tested with CoffeeLakeFspBinPkg FSP 7.0.68.41.

Untested:
* CNVi
* Intel Graphics

Tested:
* CPU Intel Xeon E2288G
* CPU Intel Core i3-9100F
* CPU Intel Core i7 9700KF
* CPU Intel Core i7 9700E
* CPU Intel Core i7 9700F
* CPU Intel Core i5 9600K
* CPU Intel Pentium Gold G5400
* PCIe Link Width x8 on Slot6 by changing PCIe mux
* All four DDR4 slots in different configurations
* USB2.0 HDR1
* USB2.0 HDR2
* USB3.0 HDR
* Slot1
* Slot2
* Slot3
* Slot4
* Slot6
* M2.M NVMEe
* Ethernet PHYs 0-4
* Aspeed BMC PCIe
* Aspeed BMC USB
* Aspeed Graphics init
* USB3 backplane all working
* I801 SMBUS

Not Working:
* Intel HDA

Change-Id: Id7d051d3fa6823618691d5572087c9ae589c2862
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38303
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/src/mainboard/prodrive/hermes/bootblock.c b/src/mainboard/prodrive/hermes/bootblock.c
new file mode 100644
index 0000000000..1426a552d4
--- /dev/null
+++ b/src/mainboard/prodrive/hermes/bootblock.c
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <console/console.h>
+#include <soc/gpio.h>
+#include <variant/gpio.h>
+#include "gpio.h"
+
+static void early_config_gpio(void)
+{
+	/* This is a hack for FSP because it does things in MemoryInit()
+	 * which it shouldn't do. We have to prepare certain gpios here
+	 * because of the brokenness in FSP. */
+	size_t num = 0;
+	const struct pad_config *early_gpio_table = get_early_gpio_table(&num);
+
+	gpio_configure_pads(early_gpio_table, num);
+}
+
+void bootblock_mainboard_early_init(void)
+{
+	early_config_gpio();
+}
+
+void bootblock_mainboard_init(void)
+{
+	u8 bmc_hsi = (gpio_get(GPP_K13) << 3) |
+		(gpio_get(GPP_K12) << 2) |
+		(gpio_get(GPP_K14) << 1) |
+		(gpio_get(GPP_K16) << 0);
+
+	printk(BIOS_INFO, "BMC HSI 0x%x\n", bmc_hsi);
+}