From bd15ece78af605bca9fc092baa094c87d5b8244b Mon Sep 17 00:00:00 2001
From: Arthur Heymans <arthur@aheymans.xyz>
Date: Tue, 4 Oct 2022 14:53:56 +0200
Subject: soc/amd/*: Move emmc disabling to device ops

This allows for reduced use of chip_operations in the followup patch and
allows the allocator to skip over the used mmio.

Change-Id: I4052438185e7861792733b96a1298201c73fc3ff
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68113
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
---
 src/soc/amd/cezanne/Makefile.inc |  1 +
 src/soc/amd/cezanne/chip.c       |  7 +++----
 src/soc/amd/cezanne/emmc.c       | 23 +++++++++++++++++++++++
 3 files changed, 27 insertions(+), 4 deletions(-)
 create mode 100644 src/soc/amd/cezanne/emmc.c

(limited to 'src/soc/amd/cezanne')

diff --git a/src/soc/amd/cezanne/Makefile.inc b/src/soc/amd/cezanne/Makefile.inc
index dc97c1ff4d..95ab4edb4b 100644
--- a/src/soc/amd/cezanne/Makefile.inc
+++ b/src/soc/amd/cezanne/Makefile.inc
@@ -33,6 +33,7 @@ ramstage-y	+= agesa_acpi.c
 ramstage-y	+= chip.c
 ramstage-y	+= cpu.c
 ramstage-y	+= data_fabric.c
+ramstage-y	+= emmc.c
 ramstage-y	+= fch.c
 ramstage-y	+= fsp_s_params.c
 ramstage-y	+= gpio.c
diff --git a/src/soc/amd/cezanne/chip.c b/src/soc/amd/cezanne/chip.c
index f184cb543b..86aaf6ced2 100644
--- a/src/soc/amd/cezanne/chip.c
+++ b/src/soc/amd/cezanne/chip.c
@@ -1,12 +1,10 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-#include <amdblocks/aoac.h>
 #include <console/console.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <fsp/api.h>
 #include <soc/acpi.h>
-#include <soc/aoac_defs.h>
 #include <soc/cpu.h>
 #include <soc/data_fabric.h>
 #include <soc/pci_devs.h>
@@ -18,6 +16,8 @@
 extern struct device_operations soc_amd_i2c_mmio_ops;
 /* Supplied by uart.c */
 extern struct device_operations cezanne_uart_mmio_ops;
+/* Supplied by emmc.c */
+extern struct device_operations cezanne_emmc_mmio_ops;
 
 struct device_operations cpu_bus_ops = {
 	.read_resources	= noop_read_resources,
@@ -60,8 +60,7 @@ static void set_mmio_dev_ops(struct device *dev)
 		dev->ops = &cezanne_uart_mmio_ops;
 		break;
 	case APU_EMMC_BASE:
-		if (!dev->enabled)
-			power_off_aoac_device(FCH_AOAC_DEV_EMMC);
+		dev->ops = &cezanne_emmc_mmio_ops;
 		break;
 	}
 }
diff --git a/src/soc/amd/cezanne/emmc.c b/src/soc/amd/cezanne/emmc.c
new file mode 100644
index 0000000000..a699b20f51
--- /dev/null
+++ b/src/soc/amd/cezanne/emmc.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <amdblocks/aoac.h>
+#include <device/device.h>
+#include <soc/aoac_defs.h>
+
+static void emmc_read_resources(struct device *dev)
+{
+	mmio_resource_kb(dev, 0, dev->path.mmio.addr / KiB, 4);
+}
+
+static void emmc_enable(struct device *dev)
+{
+	if (!dev->enabled)
+		power_off_aoac_device(FCH_AOAC_DEV_EMMC);
+}
+
+struct device_operations cezanne_emmc_mmio_ops = {
+	.read_resources = emmc_read_resources,
+	.set_resources = noop_set_resources,
+	.scan_bus = scan_static_bus,
+	.enable = emmc_enable,
+};
-- 
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