mediatek: mt8195: add sys_cirq support
MT8192 cirq driver can be shared with MT8195. Move cirq driver to common
common folder.
Change-Id: Iba5cdcfd2116f0bd07e0497250f2da45613e3a4f
diff --git a/plat/mediatek/common/mtk_cirq.h b/plat/mediatek/common/mtk_cirq.h
new file mode 100644
index 0000000..6e63bb8
--- /dev/null
+++ b/plat/mediatek/common/mtk_cirq.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLAT_MT_CIRQ_H
+#define PLAT_MT_CIRQ_H
+
+#include <stdint.h>
+#include <platform_def.h>
+
+enum {
+ IRQ_MASK_HEADER = 0xF1F1F1F1,
+ IRQ_MASK_FOOTER = 0xF2F2F2F2
+};
+
+struct mtk_irq_mask {
+ uint32_t header; /* for error checking */
+ uint32_t mask0;
+ uint32_t mask1;
+ uint32_t mask2;
+ uint32_t mask3;
+ uint32_t mask4;
+ uint32_t mask5;
+ uint32_t mask6;
+ uint32_t mask7;
+ uint32_t mask8;
+ uint32_t mask9;
+ uint32_t mask10;
+ uint32_t mask11;
+ uint32_t mask12;
+ uint32_t footer; /* for error checking */
+};
+
+/*
+ * Define hardware register
+ */
+#define CIRQ_STA_BASE (SYS_CIRQ_BASE + U(0x000))
+#define CIRQ_ACK_BASE (SYS_CIRQ_BASE + U(0x080))
+#define CIRQ_MASK_BASE (SYS_CIRQ_BASE + U(0x100))
+#define CIRQ_MASK_SET_BASE (SYS_CIRQ_BASE + U(0x180))
+#define CIRQ_MASK_CLR_BASE (SYS_CIRQ_BASE + U(0x200))
+#define CIRQ_SENS_BASE (SYS_CIRQ_BASE + U(0x280))
+#define CIRQ_SENS_SET_BASE (SYS_CIRQ_BASE + U(0x300))
+#define CIRQ_SENS_CLR_BASE (SYS_CIRQ_BASE + U(0x380))
+#define CIRQ_POL_BASE (SYS_CIRQ_BASE + U(0x400))
+#define CIRQ_POL_SET_BASE (SYS_CIRQ_BASE + U(0x480))
+#define CIRQ_POL_CLR_BASE (SYS_CIRQ_BASE + U(0x500))
+#define CIRQ_CON (SYS_CIRQ_BASE + U(0x600))
+
+/*
+ * Register placement
+ */
+#define CIRQ_CON_EN_BITS U(0)
+#define CIRQ_CON_EDGE_ONLY_BITS U(1)
+#define CIRQ_CON_FLUSH_BITS U(2)
+#define CIRQ_CON_SW_RST_BITS U(20)
+#define CIRQ_CON_EVENT_BITS U(31)
+#define CIRQ_CON_BITS_MASK U(0x7)
+
+/*
+ * Register setting
+ */
+#define CIRQ_CON_EN U(0x1)
+#define CIRQ_CON_EDGE_ONLY U(0x1)
+#define CIRQ_CON_FLUSH U(0x1)
+#define CIRQ_SW_RESET U(0x1)
+
+/*
+ * Define constant
+ */
+#define CIRQ_CTRL_REG_NUM ((CIRQ_IRQ_NUM + 31U) / 32U)
+
+#define MT_CIRQ_POL_NEG U(0)
+#define MT_CIRQ_POL_POS U(1)
+
+#define IRQ_TO_CIRQ_NUM(irq) ((irq) - (32U + CIRQ_SPI_START))
+#define CIRQ_TO_IRQ_NUM(cirq) ((cirq) + (32U + CIRQ_SPI_START))
+
+/* GIC sensitive */
+#define SENS_EDGE U(0x2)
+#define SENS_LEVEL U(0x1)
+
+
+/*
+ * Define function prototypes.
+ */
+int mt_cirq_test(void);
+void mt_cirq_dump_reg(void);
+int mt_irq_mask_restore(struct mtk_irq_mask *mask);
+int mt_irq_mask_all(struct mtk_irq_mask *mask);
+void mt_cirq_clone_gic(void);
+void mt_cirq_enable(void);
+void mt_cirq_flush(void);
+void mt_cirq_disable(void);
+void mt_irq_unmask_for_sleep_ex(uint32_t irq);
+void set_wakeup_sources(uint32_t *list, uint32_t num_of_events);
+void mt_cirq_sw_reset(void);
+
+struct cirq_reg {
+ uint32_t reg_num;
+ uint32_t used;
+ uint32_t mask;
+ uint32_t pol;
+ uint32_t sen;
+ uint32_t pending;
+ uint32_t the_link;
+};
+
+struct cirq_events {
+ uint32_t num_reg;
+ uint32_t spi_start;
+ uint32_t num_of_events;
+ uint32_t *wakeup_events;
+ struct cirq_reg table[CIRQ_REG_NUM];
+ uint32_t dist_base;
+ uint32_t cirq_base;
+ uint32_t used_reg_head;
+};
+
+#endif /* PLAT_MT_CIRQ_H */