AArch32: Add FVP support for SP_MIN
This patch implements the support for SP_MIN in FVP. The SP_MIN platform
APIs are implemented and the required makefile support is added for FVP.
Change-Id: Id50bd6093eccbd5e38894e3fd2b20d5baeac5452
diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index 0ffdb5c..25aab24 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -167,6 +167,9 @@
/* TSP utility functions */
void arm_tsp_early_platform_setup(void);
+/* SP_MIN utility functions */
+void arm_sp_min_early_platform_setup(void);
+
/* FIP TOC validity check */
int arm_io_is_toc_valid(void);
diff --git a/plat/arm/board/fvp/sp_min/fvp_sp_min_setup.c b/plat/arm/board/fvp/sp_min/fvp_sp_min_setup.c
new file mode 100644
index 0000000..d3bef82
--- /dev/null
+++ b/plat/arm/board/fvp/sp_min/fvp_sp_min_setup.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <plat_arm.h>
+#include "../fvp_private.h"
+
+void sp_min_early_platform_setup(void)
+{
+ arm_sp_min_early_platform_setup();
+
+ /* Initialize the platform config for future decision making */
+ fvp_config_setup();
+
+ /*
+ * Initialize the correct interconnect for this cluster during cold
+ * boot. No need for locks as no other CPU is active.
+ */
+ fvp_interconnect_init();
+
+ /*
+ * Enable coherency in interconnect for the primary CPU's cluster.
+ * Earlier bootloader stages might already do this (e.g. Trusted
+ * Firmware's BL1 does it) but we can't assume so. There is no harm in
+ * executing this code twice anyway.
+ * FVP PSCI code will enable coherency for other clusters.
+ */
+ fvp_interconnect_enable();
+}
diff --git a/plat/arm/board/fvp/sp_min/sp_min-fvp.mk b/plat/arm/board/fvp/sp_min/sp_min-fvp.mk
new file mode 100644
index 0000000..a788782
--- /dev/null
+++ b/plat/arm/board/fvp/sp_min/sp_min-fvp.mk
@@ -0,0 +1,42 @@
+#
+# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# Redistributions of source code must retain the above copyright notice, this
+# list of conditions and the following disclaimer.
+#
+# Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# Neither the name of ARM nor the names of its contributors may be used
+# to endorse or promote products derived from this software without specific
+# prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+# SP_MIN source files specific to FVP platform
+BL32_SOURCES += plat/arm/board/fvp/aarch32/fvp_helpers.S \
+ plat/arm/board/fvp/drivers/pwrc/fvp_pwrc.c \
+ plat/arm/board/fvp/fvp_pm.c \
+ plat/arm/board/fvp/fvp_topology.c \
+ plat/arm/board/fvp/sp_min/fvp_sp_min_setup.c \
+ ${FVP_CPU_LIBS} \
+ ${FVP_GIC_SOURCES} \
+ ${FVP_INTERCONNECT_SOURCES} \
+ ${FVP_SECURITY_SOURCES}
+
+include plat/arm/common/sp_min/arm_sp_min.mk
\ No newline at end of file
diff --git a/plat/arm/common/sp_min/arm_sp_min.mk b/plat/arm/common/sp_min/arm_sp_min.mk
new file mode 100644
index 0000000..8a4d598
--- /dev/null
+++ b/plat/arm/common/sp_min/arm_sp_min.mk
@@ -0,0 +1,37 @@
+#
+# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# Redistributions of source code must retain the above copyright notice, this
+# list of conditions and the following disclaimer.
+#
+# Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# Neither the name of ARM nor the names of its contributors may be used
+# to endorse or promote products derived from this software without specific
+# prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+# SP MIN source files common to ARM standard platforms
+BL32_SOURCES += plat/arm/common/arm_pm.c \
+ plat/arm/common/arm_topology.c \
+ plat/arm/common/sp_min/arm_sp_min_setup.c \
+ plat/common/aarch32/platform_mp_stack.S \
+ plat/common/plat_psci_common.c
+
diff --git a/plat/arm/common/sp_min/arm_sp_min_setup.c b/plat/arm/common/sp_min/arm_sp_min_setup.c
new file mode 100644
index 0000000..927f30f
--- /dev/null
+++ b/plat/arm/common/sp_min/arm_sp_min_setup.c
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <assert.h>
+#include <console.h>
+#include <mmio.h>
+#include <plat_arm.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <platform_sp_min.h>
+
+#define BL32_END (uintptr_t)(&__BL32_END__)
+
+#if USE_COHERENT_MEM
+/*
+ * The next 2 constants identify the extents of the coherent memory region.
+ * These addresses are used by the MMU setup code and therefore they must be
+ * page-aligned. It is the responsibility of the linker script to ensure that
+ * __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols refer to
+ * page-aligned addresses.
+ */
+#define BL32_COHERENT_RAM_BASE (uintptr_t)(&__COHERENT_RAM_START__)
+#define BL32_COHERENT_RAM_LIMIT (uintptr_t)(&__COHERENT_RAM_END__)
+#endif
+
+
+static entry_point_info_t bl33_image_ep_info;
+
+/* Weak definitions may be overridden in specific ARM standard platform */
+#pragma weak sp_min_early_platform_setup
+#pragma weak sp_min_platform_setup
+#pragma weak sp_min_plat_arch_setup
+
+#ifndef RESET_TO_SP_MIN
+#error (" RESET_TO_SP_MIN flag is expected to be set.")
+#endif
+
+
+/*******************************************************************************
+ * Return a pointer to the 'entry_point_info' structure of the next image for the
+ * security state specified. BL33 corresponds to the non-secure image type
+ * while BL32 corresponds to the secure image type. A NULL pointer is returned
+ * if the image does not exist.
+ ******************************************************************************/
+entry_point_info_t *sp_min_plat_get_bl33_ep_info(void)
+{
+ entry_point_info_t *next_image_info;
+
+ next_image_info = &bl33_image_ep_info;
+
+ /*
+ * None of the images on the ARM development platforms can have 0x0
+ * as the entrypoint
+ */
+ if (next_image_info->pc)
+ return next_image_info;
+ else
+ return NULL;
+}
+
+/*******************************************************************************
+ * Perform early platform setup. We expect SP_MIN is the first boot loader
+ * image and RESET_TO_SP_MIN build option to be set.
+ ******************************************************************************/
+void arm_sp_min_early_platform_setup(void)
+{
+ /* Initialize the console to provide early debug support */
+ console_init(PLAT_ARM_BOOT_UART_BASE, PLAT_ARM_BOOT_UART_CLK_IN_HZ,
+ ARM_CONSOLE_BAUDRATE);
+
+ /* Populate entry point information for BL33 */
+ SET_PARAM_HEAD(&bl33_image_ep_info,
+ PARAM_EP,
+ VERSION_1,
+ 0);
+ /*
+ * Tell SP_MIN where the non-trusted software image
+ * is located and the entry state information
+ */
+#ifdef PRELOADED_BL33_BASE
+ bl33_image_ep_info.pc = PRELOADED_BL33_BASE;
+#else
+ bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
+#endif
+ bl33_image_ep_info.spsr = arm_get_spsr_for_bl33_entry();
+ SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
+}
+
+void sp_min_early_platform_setup(void)
+{
+ arm_sp_min_early_platform_setup();
+
+ /*
+ * Initialize Interconnect for this cluster during cold boot.
+ * No need for locks as no other CPU is active.
+ */
+ plat_arm_interconnect_init();
+
+ /*
+ * Enable Interconnect coherency for the primary CPU's cluster.
+ * Earlier bootloader stages might already do this (e.g. Trusted
+ * Firmware's BL1 does it) but we can't assume so. There is no harm in
+ * executing this code twice anyway.
+ * Platform specific PSCI code will enable coherency for other
+ * clusters.
+ */
+ plat_arm_interconnect_enter_coherency();
+}
+
+/*******************************************************************************
+ * Perform platform specific setup for SP_MIN
+ ******************************************************************************/
+void sp_min_platform_setup(void)
+{
+ /* Initialize the GIC driver, cpu and distributor interfaces */
+ plat_arm_gic_driver_init();
+ plat_arm_gic_init();
+
+ /*
+ * Do initial security configuration to allow DRAM/device access
+ * (if earlier BL has not already done so).
+ * TODO: If RESET_TO_SP_MIN is not set, the security setup needs
+ * to be skipped.
+ */
+ plat_arm_security_setup();
+
+ /* Enable and initialize the System level generic timer */
+ mmio_write_32(ARM_SYS_CNTCTL_BASE + CNTCR_OFF,
+ CNTCR_FCREQ(0) | CNTCR_EN);
+
+ /* Allow access to the System counter timer module */
+ arm_configure_sys_timer();
+
+ /* Initialize power controller before setting up topology */
+ plat_arm_pwrc_setup();
+}
+
+/*******************************************************************************
+ * Perform the very early platform specific architectural setup here. At the
+ * moment this only initializes the MMU
+ ******************************************************************************/
+void sp_min_plat_arch_setup(void)
+{
+
+ arm_setup_page_tables(BL32_BASE,
+ (BL32_END - BL32_BASE),
+ BL_CODE_BASE,
+ BL_CODE_LIMIT,
+ BL_RO_DATA_BASE,
+ BL_RO_DATA_LIMIT
+#if USE_COHERENT_MEM
+ , BL32_COHERENT_RAM_BASE,
+ BL32_COHERENT_RAM_LIMIT
+#endif
+ );
+
+ enable_mmu_secure(0);
+}