--- /dev/null
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <debug.h>
+#include <mmio.h>
+#include <stddef.h>
+#include <tzc380.h>
+
+struct tzc380_instance {
+ uintptr_t base;
+ uint8_t addr_width;
+ uint8_t num_regions;
+};
+
+struct tzc380_instance tzc380;
+
+static unsigned int tzc380_read_build_config(uintptr_t base)
+{
+ return mmio_read_32(base + TZC380_CONFIGURATION_OFF);
+}
+
+static void tzc380_write_action(uintptr_t base, tzc_action_t action)
+{
+ mmio_write_32(base + ACTION_OFF, action);
+}
+
+static void tzc380_write_region_base_low(uintptr_t base, unsigned int region,
+ unsigned int val)
+{
+ mmio_write_32(base + REGION_SETUP_LOW_OFF(region), val);
+}
+
+static void tzc380_write_region_base_high(uintptr_t base, unsigned int region,
+ unsigned int val)
+{
+ mmio_write_32(base + REGION_SETUP_HIGH_OFF(region), val);
+}
+
+static void tzc380_write_region_attributes(uintptr_t base, unsigned int region,
+ unsigned int val)
+{
+ mmio_write_32(base + REGION_ATTRIBUTES_OFF(region), val);
+}
+
+void tzc380_init(uintptr_t base)
+{
+ unsigned int tzc_build;
+
+ assert(base != NULL);
+ tzc380.base = base;
+
+ /* Save values we will use later. */
+ tzc_build = tzc380_read_build_config(tzc380.base);
+ tzc380.addr_width = ((tzc_build >> BUILD_CONFIG_AW_SHIFT) &
+ BUILD_CONFIG_AW_MASK) + 1;
+ tzc380.num_regions = ((tzc_build >> BUILD_CONFIG_NR_SHIFT) &
+ BUILD_CONFIG_NR_MASK) + 1;
+}
+
+static uint32_t addr_low(uintptr_t addr)
+{
+ return (uint32_t)addr;
+}
+
+static uint32_t addr_high(uintptr_t addr __unused)
+{
+#if (UINTPTR_MAX == UINT64_MAX)
+ return addr >> 32;
+#else
+ return 0;
+#endif
+}
+
+/*
+ * `tzc380_configure_region` is used to program regions into the TrustZone
+ * controller.
+ */
+void tzc380_configure_region(uint8_t region, uintptr_t region_base, unsigned int attr)
+{
+ assert(tzc380.base != NULL);
+
+ assert(region < tzc380.num_regions);
+
+ tzc380_write_region_base_low(tzc380.base, region, addr_low(region_base));
+ tzc380_write_region_base_high(tzc380.base, region, addr_high(region_base));
+ tzc380_write_region_attributes(tzc380.base, region, attr);
+}
+
+void tzc380_set_action(tzc_action_t action)
+{
+ assert(tzc380.base != NULL);
+
+ /*
+ * - Currently no handler is provided to trap an error via interrupt
+ * or exception.
+ * - The interrupt action has not been tested.
+ */
+ tzc380_write_action(tzc380.base, action);
+}
--- /dev/null
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef TZC380_H
+#define TZC380_H
+
+#include <tzc_common.h>
+#include <utils_def.h>
+
+#define TZC380_CONFIGURATION_OFF U(0x000)
+#define ACTION_OFF U(0x004)
+#define LOCKDOWN_RANGE_OFF U(0x008)
+#define LOCKDOWN_SELECT_OFF U(0x00C)
+#define INT_STATUS U(0x010)
+#define INT_CLEAR U(0x014)
+
+#define FAIL_ADDRESS_LOW_OFF U(0x020)
+#define FAIL_ADDRESS_HIGH_OFF U(0x024)
+#define FAIL_CONTROL_OFF U(0x028)
+#define FAIL_ID U(0x02c)
+
+#define SPECULATION_CTRL_OFF U(0x030)
+#define SECURITY_INV_EN_OFF U(0x034)
+
+#define REGION_SETUP_LOW_OFF(n) U(0x100 + (n) * 0x10)
+#define REGION_SETUP_HIGH_OFF(n) U(0x104 + (n) * 0x10)
+#define REGION_ATTRIBUTES_OFF(n) U(0x108 + (n) * 0x10)
+
+#define BUILD_CONFIG_AW_SHIFT 8
+#define BUILD_CONFIG_AW_MASK U(0x3f)
+#define BUILD_CONFIG_NR_SHIFT 0
+#define BUILD_CONFIG_NR_MASK U(0xf)
+
+#define ACTION_RV_SHIFT 0
+#define ACTION_RV_MASK U(0x3)
+#define ACTION_RV_LOWOK U(0x0)
+#define ACTION_RV_LOWERR U(0x1)
+#define ACTION_RV_HIGHOK U(0x2)
+#define ACTION_RV_HIGHERR U(0x3)
+
+/* Speculation is enabled by default. */
+#define SPECULATION_CTRL_WRITE_DISABLE BIT_32(1)
+#define SPECULATION_CTRL_READ_DISABLE BIT_32(0)
+
+#define INT_STATUS_OVERRUN_SHIFT 1
+#define INT_STATUS_OVERRUN_MASK U(0x1)
+#define INT_STATUS_STATUS_SHIFT 0
+#define INT_STATUS_STATUS_MASK U(0x1)
+
+#define INT_CLEAR_CLEAR_SHIFT 0
+#define INT_CLEAR_CLEAR_MASK U(0x1)
+
+#define TZC380_COMPONENT_ID U(0xb105f00d)
+#define TZC380_PERIPH_ID_LOW U(0x001bb380)
+#define TZC380_PERIPH_ID_HIGH U(0x00000004)
+
+#define TZC_SP_NS_W BIT_32(0)
+#define TZC_SP_NS_R BIT_32(1)
+#define TZC_SP_S_W BIT_32(2)
+#define TZC_SP_S_R BIT_32(3)
+
+#define TZC_ATTR_SP_SHIFT 28
+#define TZC_ATTR_SP_ALL ((TZC_SP_S_W | TZC_SP_S_R | TZC_SP_NS_W | \
+ TZC_SP_NS_R) << TZC_ATTR_SP_SHIFT)
+#define TZC_ATTR_SP_S_RW ((TZC_SP_S_W | TZC_SP_S_R) << \
+ TZC_ATTR_SP_SHIFT)
+#define TZC_ATTR_SP_NS_RW ((TZC_SP_NS_W | TZC_SP_NS_R) << \
+ TZC_ATTR_SP_SHIFT)
+
+#define TZC_REGION_SIZE_32K U(0xe)
+#define TZC_REGION_SIZE_64K U(0xf)
+#define TZC_REGION_SIZE_128K U(0x10)
+#define TZC_REGION_SIZE_256K U(0x11)
+#define TZC_REGION_SIZE_512K U(0x12)
+#define TZC_REGION_SIZE_1M U(0x13)
+#define TZC_REGION_SIZE_2M U(0x14)
+#define TZC_REGION_SIZE_4M U(0x15)
+#define TZC_REGION_SIZE_8M U(0x16)
+#define TZC_REGION_SIZE_16M U(0x17)
+#define TZC_REGION_SIZE_32M U(0x18)
+#define TZC_REGION_SIZE_64M U(0x19)
+#define TZC_REGION_SIZE_128M U(0x1a)
+#define TZC_REGION_SIZE_256M U(0x1b)
+#define TZC_REGION_SIZE_512M U(0x1c)
+#define TZC_REGION_SIZE_1G U(0x1d)
+#define TZC_REGION_SIZE_2G U(0x1e)
+#define TZC_REGION_SIZE_4G U(0x1f)
+#define TZC_REGION_SIZE_8G U(0x20)
+#define TZC_REGION_SIZE_16G U(0x21)
+#define TZC_REGION_SIZE_32G U(0x22)
+#define TZC_REGION_SIZE_64G U(0x23)
+#define TZC_REGION_SIZE_128G U(0x24)
+#define TZC_REGION_SIZE_256G U(0x25)
+#define TZC_REGION_SIZE_512G U(0x26)
+#define TZC_REGION_SIZE_1T U(0x27)
+#define TZC_REGION_SIZE_2T U(0x28)
+#define TZC_REGION_SIZE_4T U(0x29)
+#define TZC_REGION_SIZE_8T U(0x2a)
+#define TZC_REGION_SIZE_16T U(0x2b)
+#define TZC_REGION_SIZE_32T U(0x2c)
+#define TZC_REGION_SIZE_64T U(0x2d)
+#define TZC_REGION_SIZE_128T U(0x2e)
+#define TZC_REGION_SIZE_256T U(0x2f)
+#define TZC_REGION_SIZE_512T U(0x30)
+#define TZC_REGION_SIZE_1P U(0x31)
+#define TZC_REGION_SIZE_2P U(0x32)
+#define TZC_REGION_SIZE_4P U(0x33)
+#define TZC_REGION_SIZE_8P U(0x34)
+#define TZC_REGION_SIZE_16P U(0x35)
+#define TZC_REGION_SIZE_32P U(0x36)
+#define TZC_REGION_SIZE_64P U(0x37)
+#define TZC_REGION_SIZE_128P U(0x38)
+#define TZC_REGION_SIZE_256P U(0x39)
+#define TZC_REGION_SIZE_512P U(0x3a)
+#define TZC_REGION_SIZE_1E U(0x3b)
+#define TZC_REGION_SIZE_2E U(0x3c)
+#define TZC_REGION_SIZE_4E U(0x3d)
+#define TZC_REGION_SIZE_8E U(0x3e)
+#define TZC_REGION_SIZE_16E U(0x3f)
+
+#define TZC_REGION_SIZE_SHIFT 0x1
+#define TZC_REGION_SIZE_MASK U(0x7e)
+#define TZC_ATTR_REGION_SIZE(s) ((s) << TZC_REGION_SIZE_SHIFT)
+
+#define TZC_ATTR_REGION_EN_SHIFT 0x0
+#define TZC_ATTR_REGION_EN_MASK U(0x1)
+
+#define TZC_ATTR_REGION_EN
+#define TZC_ATTR_REGION_ENABLE U(0x1)
+#define TZC_ATTR_REGION_DISABLE U(0x0)
+
+#define REGION_MAX 16
+
+void tzc380_init(uintptr_t base);
+void tzc380_configure_region(uint8_t region,
+ uintptr_t region_base,
+ unsigned int attr);
+void tzc380_set_action(tzc_action_t action);
+static inline void tzc_init(uintptr_t base)
+{
+ tzc380_init(base);
+}
+
+static inline void tzc_configure_region(uint8_t region,
+ uintptr_t region_base,
+ unsigned int attr)
+{
+ tzc380_configure_region(region, region_base, attr);
+}
+
+static inline void tzc_set_action(tzc_action_t action)
+{
+ tzc380_set_action(action);
+}
+
+#endif /* TZC380_H */
projects / project / bcm63xx / atf.git / commitdiff