diff options
Diffstat (limited to 'plat/marvell/common/marvell_bl31_setup.c')
| -rw-r--r-- | plat/marvell/common/marvell_bl31_setup.c | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/plat/marvell/common/marvell_bl31_setup.c b/plat/marvell/common/marvell_bl31_setup.c new file mode 100644 index 00000000..a5f2a78c --- /dev/null +++ b/plat/marvell/common/marvell_bl31_setup.c @@ -0,0 +1,284 @@ +/* + * *************************************************************************** + * Copyright (C) 2016 Marvell International Ltd. + * *************************************************************************** + * + * 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 Marvell 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. + * + *************************************************************************** + */ +/* + * Copyright (c) 2015, 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 <arch.h> +#include <arm_def.h> +#include <assert.h> +#include <console.h> +#include <plat_marvell.h> +#include <platform.h> +#include <debug.h> + +#ifdef USE_CCI +#include <cci.h> +#endif + + +/* + * The next 3 constants identify the extents of the code, RO data region and the + * limit of the BL31 image. 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 __RO_START__, __RO_END__ & __BL31_END__ linker symbols + * refer to page-aligned addresses. + */ +#define BL31_END (unsigned long)(&__BL31_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 BL31_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__) +#define BL31_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__) +#endif + +/* + * Placeholder variables for copying the arguments that have been passed to + * BL31 from BL2. + */ +static entry_point_info_t bl32_image_ep_info; +static entry_point_info_t bl33_image_ep_info; + +/* Weak definitions may be overridden in specific ARM standard platform */ +#pragma weak bl31_early_platform_setup +#pragma weak bl31_platform_setup +#pragma weak bl31_plat_arch_setup +#pragma weak bl31_plat_get_next_image_ep_info +#pragma weak plat_get_syscnt_freq2 + +/******************************************************************************* + * 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 *bl31_plat_get_next_image_ep_info(uint32_t type) +{ + entry_point_info_t *next_image_info; + + assert(sec_state_is_valid(type)); + next_image_info = (type == NON_SECURE) + ? &bl33_image_ep_info : &bl32_image_ep_info; + + return next_image_info; +} + +/******************************************************************************* + * Perform any BL31 early platform setup common to ARM standard platforms. + * Here is an opportunity to copy parameters passed by the calling EL (S-EL1 + * in BL2 & S-EL3 in BL1) before they are lost (potentially). This needs to be + * done before the MMU is initialized so that the memory layout can be used + * while creating page tables. BL2 has flushed this information to memory, so + * we are guaranteed to pick up good data. + ******************************************************************************/ +void marvell_bl31_early_platform_setup(bl31_params_t *from_bl2, + void *plat_params_from_bl2) +{ + /* Initialize the console to provide early debug support */ + console_init(PLAT_MARVELL_BOOT_UART_BASE, + PLAT_MARVELL_BOOT_UART_CLK_IN_HZ, + MARVELL_CONSOLE_BAUDRATE); + +#if RESET_TO_BL31 + /* There are no parameters from BL2 if BL31 is a reset vector */ + assert(from_bl2 == NULL); + assert(plat_params_from_bl2 == NULL); + +#ifdef BL32_BASE + /* Populate entry point information for BL32 */ + SET_PARAM_HEAD(&bl32_image_ep_info, + PARAM_EP, + VERSION_1, + 0); + SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE); + bl32_image_ep_info.pc = BL32_BASE; + bl32_image_ep_info.spsr = marvell_get_spsr_for_bl32_entry(); +#endif /* BL32_BASE */ + + /* Populate entry point information for BL33 */ + SET_PARAM_HEAD(&bl33_image_ep_info, + PARAM_EP, + VERSION_1, + 0); + /* + * Tell BL31 where the non-trusted software image + * is located and the entry state information + */ + bl33_image_ep_info.pc = plat_get_ns_image_entrypoint(); + bl33_image_ep_info.spsr = marvell_get_spsr_for_bl33_entry(); + SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE); + +#else + /* + * Check params passed from BL2 should not be NULL, + */ + assert(from_bl2 != NULL); + assert(from_bl2->h.type == PARAM_BL31); + assert(from_bl2->h.version >= VERSION_1); + /* + * In debug builds, we pass a special value in 'plat_params_from_bl2' + * to verify platform parameters from BL2 to BL31. + * In release builds, it's not used. + */ + assert(((unsigned long long)plat_params_from_bl2) == + MARVELL_BL31_PLAT_PARAM_VAL); + + /* + * Copy BL32 (if populated by BL2) and BL33 entry point information. + * They are stored in Secure RAM, in BL2's address space. + */ + if (from_bl2->bl32_ep_info) + bl32_image_ep_info = *from_bl2->bl32_ep_info; + bl33_image_ep_info = *from_bl2->bl33_ep_info; +#endif +} + +void bl31_early_platform_setup(bl31_params_t *from_bl2, + void *plat_params_from_bl2) +{ + marvell_bl31_early_platform_setup(from_bl2, plat_params_from_bl2); + +#ifdef USE_CCI + /* + * Initialize CCI for this cluster during cold boot. + * No need for locks as no other CPU is active. + */ + marvell_cci_init(); + + /* + * Enable CCI coherency for the primary CPU's cluster. + * Platform specific PSCI code will enable coherency for other + * clusters. + */ + cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr())); +#endif +} + +/******************************************************************************* + * Perform any BL31 platform setup common to ARM standard platforms + ******************************************************************************/ +void marvell_bl31_platform_setup(void) +{ + /* Initialize the GIC driver, cpu and distributor interfaces */ + plat_marvell_gic_driver_init(); + plat_marvell_gic_init(); + + psci_arch_init(); +} + +/******************************************************************************* + * Perform any BL31 platform runtime setup prior to BL31 exit common to ARM + * standard platforms + ******************************************************************************/ +void marvell_bl31_plat_runtime_setup(void) +{ + /* Initialize the runtime console */ + console_init(PLAT_MARVELL_BL31_RUN_UART_BASE, + PLAT_MARVELL_BL31_RUN_UART_CLK_IN_HZ, + MARVELL_CONSOLE_BAUDRATE); +} + +void bl31_platform_setup(void) +{ + marvell_bl31_platform_setup(); +} + +void bl31_plat_runtime_setup(void) +{ + marvell_bl31_plat_runtime_setup(); +} + +/******************************************************************************* + * Perform the very early platform specific architectural setup shared between + * ARM standard platforms. This only does basic initialization. Later + * architectural setup (bl31_arch_setup()) does not do anything platform + * specific. + ******************************************************************************/ +void marvell_bl31_plat_arch_setup(void) +{ + marvell_setup_page_tables(BL31_BASE, + BL31_END - BL31_BASE, + BL_CODE_BASE, + BL_CODE_LIMIT, + BL_RO_DATA_BASE, + BL_RO_DATA_LIMIT +#if USE_COHERENT_MEM + , BL31_COHERENT_RAM_BASE, + BL31_COHERENT_RAM_LIMIT +#endif + ); + enable_mmu_el3(0); +} + +void bl31_plat_arch_setup(void) +{ + marvell_bl31_plat_arch_setup(); +} + +unsigned int plat_get_syscnt_freq2(void) +{ + return PLAT_REF_CLK_IN_HZ; +} |