soc/mediatek/mt8195: Add devapc basic drivers

Add basic devapc (device access permission control) drivers.

DAPC driver is used to set up bus fabric security and data protection
among hardwares. DAPC driver groups the master hardwares into different
domains and gives secure and non-secure property. The slave hardware can
configure different access permissions for different domains via DAPC
driver.

1. Initialize devapc.
2. Set master domain and secure side band.
3. Set domain remap.
4. Set default permission.

Change-Id: I3677657a117caed0d73526f78b0ebe8180148335
Signed-off-by: Nina Wu <nina-cm.wu@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56764
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

1 files changed, 178 insertions, 0 deletions

diff --git a/src/soc/mediatek/mt8195/include/soc/devapc.h b/src/soc/mediatek/mt8195/include/soc/devapc.h
new file mode 100644
index 000000000000..df8197214a66
--- /dev/null
+++ b/src/soc/mediatek/mt8195/include/soc/devapc.h
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_MEDIATEK_MT8195_DEVAPC_H
+#define SOC_MEDIATEK_MT8195_DEVAPC_H
+
+#include <device/mmio.h>
+#include <soc/addressmap.h>
+
+void dapc_init(void);
+
+enum devapc_ao_offset {
+	SYS0_D0_APC_0 = 0x0,
+	SYS1_D0_APC_0 = 0x1000,
+	SYS2_D0_APC_0 = 0x2000,
+	DOM_REMAP_0_0 = 0x800,
+	DOM_REMAP_1_0 = 0x810,
+	DOM_REMAP_1_1 = 0x814,
+	DOM_REMAP_2_0 = 0x820,
+	MAS_DOM_0 = 0x0900,
+	MAS_SEC_0 = 0x0A00,
+	AO_APC_CON = 0x0F00,
+};
+
+/******************************************************************************
+ * STRUCTURE DEFINITION
+ ******************************************************************************/
+/* Common */
+enum trans_type {
+	NON_SECURE_TRANS = 0,
+	SECURE_TRANS,
+};
+
+enum devapc_perm_type {
+	NO_PROTECTION = 0,
+	SEC_RW_ONLY,
+	SEC_RW_NS_R,
+	FORBIDDEN,
+	PERM_NUM,
+};
+
+enum domain_id {
+	DOMAIN_0 = 0,
+	DOMAIN_1,
+	DOMAIN_2,
+	DOMAIN_3,
+	DOMAIN_4,
+	DOMAIN_5,
+	DOMAIN_6,
+	DOMAIN_7,
+	DOMAIN_8,
+	DOMAIN_9,
+	DOMAIN_10,
+	DOMAIN_11,
+	DOMAIN_12,
+	DOMAIN_13,
+	DOMAIN_14,
+	DOMAIN_15,
+};
+
+struct apc_infra_peri_dom_16 {
+	unsigned char d_permission[16];
+};
+
+struct apc_infra_peri_dom_8 {
+	unsigned char d_permission[8];
+};
+
+struct apc_infra_peri_dom_4 {
+	unsigned char d_permission[4];
+};
+
+#define DAPC_PERM_ATTR_4(DEV_NAME, PERM_ATTR0, PERM_ATTR1, \
+			 PERM_ATTR2, PERM_ATTR3) \
+	(unsigned char)PERM_ATTR0, (unsigned char)PERM_ATTR1, \
+	(unsigned char)PERM_ATTR2, (unsigned char)PERM_ATTR3,
+
+#define DAPC_PERM_ATTR_8(DEV_NAME, PERM_ATTR0, PERM_ATTR1, \
+			 PERM_ATTR2, PERM_ATTR3, PERM_ATTR4, PERM_ATTR5, \
+			 PERM_ATTR6, PERM_ATTR7) \
+	DAPC_PERM_ATTR_4(DEV_NAME, PERM_ATTR0, PERM_ATTR1, \
+			 PERM_ATTR2, PERM_ATTR3) \
+	DAPC_PERM_ATTR_4(DEV_NAME, PERM_ATTR4, PERM_ATTR5, \
+			 PERM_ATTR6, PERM_ATTR7)
+
+#define DAPC_PERM_ATTR_16(DEV_NAME, PERM_ATTR0, PERM_ATTR1, \
+			  PERM_ATTR2, PERM_ATTR3, PERM_ATTR4, PERM_ATTR5, \
+			  PERM_ATTR6, PERM_ATTR7, PERM_ATTR8, PERM_ATTR9, \
+			  PERM_ATTR10, PERM_ATTR11, PERM_ATTR12, PERM_ATTR13, \
+			  PERM_ATTR14, PERM_ATTR15) \
+	DAPC_PERM_ATTR_8(DEV_NAME, PERM_ATTR0, PERM_ATTR1, \
+			 PERM_ATTR2, PERM_ATTR3, \
+			 PERM_ATTR4, PERM_ATTR5, \
+			 PERM_ATTR6, PERM_ATTR7) \
+	DAPC_PERM_ATTR_8(DEV_NAME, PERM_ATTR8, PERM_ATTR9, \
+			 PERM_ATTR10, PERM_ATTR11, \
+			 PERM_ATTR12, PERM_ATTR13, \
+			 PERM_ATTR14, PERM_ATTR15)
+
+#define FORBIDDEN3 FORBIDDEN, FORBIDDEN, FORBIDDEN
+#define FORBIDDEN7 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, \
+		    FORBIDDEN, FORBIDDEN
+#define FORBIDDEN12 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, \
+		    FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, \
+		    FORBIDDEN, FORBIDDEN
+#define FORBIDDEN13 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, \
+		    FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, \
+		    FORBIDDEN, FORBIDDEN, FORBIDDEN
+#define FORBIDDEN15 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, \
+		    FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, \
+		    FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN
+
+enum devapc_sys_dom_num {
+	DOM_NUM_INFRA_AO_SYS0 = 16,
+	DOM_NUM_INFRA_AO_SYS1 = 4,
+	DOM_NUM_INFRA_AO_SYS2 = 4,
+	DOM_NUM_PERI_AO_SYS0 = 16,
+	DOM_NUM_PERI_AO_SYS1 = 8,
+	DOM_NUM_PERI2_AO_SYS0 = 16,
+	DOM_NUM_PERI_PAR_AO_SYS0 = 16,
+};
+
+enum devapc_cfg_index {
+	DEVAPC_DEBUGSYS_INDEX = 17,
+};
+
+/* PERM_ATTR MACRO */
+#define DAPC_INFRA_AO_SYS0_ATTR(...)	{ { DAPC_PERM_ATTR_16(__VA_ARGS__) } }
+#define DAPC_INFRA_AO_SYS1_ATTR(...)	{ { DAPC_PERM_ATTR_4(__VA_ARGS__) } }
+#define DAPC_INFRA_AO_SYS2_ATTR(...)	{ { DAPC_PERM_ATTR_4(__VA_ARGS__) } }
+#define DAPC_PERI_AO_SYS0_ATTR(...)	{ { DAPC_PERM_ATTR_16(__VA_ARGS__) } }
+#define DAPC_PERI_AO_SYS1_ATTR(...)	{ { DAPC_PERM_ATTR_8(__VA_ARGS__) } }
+#define DAPC_PERI2_AO_SYS0_ATTR(...)	{ { DAPC_PERM_ATTR_16(__VA_ARGS__) } }
+#define DAPC_PERI_PAR_AO_SYS0_ATTR(...)	{ { DAPC_PERM_ATTR_16(__VA_ARGS__) } }
+
+/******************************************************************************
+ * Variable DEFINITION
+ ******************************************************************************/
+#define MOD_NO_IN_1_DEVAPC		16
+
+/******************************************************************************
+ * Bit Field DEFINITION
+ ******************************************************************************/
+/* INFRA */
+DEFINE_BIT(CPU_EB_SEC, 1)
+
+DEFINE_BITFIELD(CPU_EB_DOM, 11, 8)	/* 1 */
+
+/* PERI_PAR */
+DEFINE_BIT(SSUSB_SEC, 21)
+DEFINE_BIT(SSUSB2_SEC, 0)
+DEFINE_BIT(SSUSB_P1_0_SEC, 1)
+DEFINE_BIT(SSUSB_P1_1_SEC, 2)
+DEFINE_BIT(SSUSB_P2_SEC, 3)
+DEFINE_BIT(SSUSB_P3_SEC, 4)
+
+/* Domain Remap */
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_0,  3,  0)
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_1,  7,  4)
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_2, 11,  8)
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_3, 15, 12)
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_4, 19, 16)
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_5, 23, 20)
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_6, 27, 24)
+DEFINE_BITFIELD(FOUR_BIT_DOM_REMAP_7, 31, 28)
+
+DEFINE_BITFIELD(THREE_BIT_DOM_REMAP_0,  2,  0)
+DEFINE_BITFIELD(THREE_BIT_DOM_REMAP_1,  5,  3)
+DEFINE_BITFIELD(THREE_BIT_DOM_REMAP_2,  8,  6)
+DEFINE_BITFIELD(THREE_BIT_DOM_REMAP_3, 11,  9)
+DEFINE_BITFIELD(THREE_BIT_DOM_REMAP_4, 14, 12)
+
+DEFINE_BITFIELD(TWO_BIT_DOM_REMAP_0, 1, 0)
+DEFINE_BITFIELD(TWO_BIT_DOM_REMAP_1, 3, 2)
+DEFINE_BITFIELD(TWO_BIT_DOM_REMAP_2, 5, 4)
+DEFINE_BITFIELD(TWO_BIT_DOM_REMAP_3, 7, 6)
+DEFINE_BITFIELD(TWO_BIT_DOM_REMAP_4, 9, 8)
+
+#endif /* SOC_MEDIATEK_MT8195_DEVAPC_H */