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Diffstat (limited to 'plat/marvell/common/marvell_pm.c')
| -rw-r--r-- | plat/marvell/common/marvell_pm.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/plat/marvell/common/marvell_pm.c b/plat/marvell/common/marvell_pm.c new file mode 100644 index 00000000..fb200aa4 --- /dev/null +++ b/plat/marvell/common/marvell_pm.c @@ -0,0 +1,120 @@ +/* + * *************************************************************************** + * 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_helpers.h> +#include <assert.h> +#include <psci.h> +#include <platform_def.h> + +/* Standard ARM platforms are expected to export plat_arm_psci_pm_ops */ +extern const plat_psci_ops_t plat_arm_psci_pm_ops; + + +/******************************************************************************* + * Private function to program the mailbox for a cpu before it is released + * from reset. This function assumes that the mail box base is within + * the MARVELL_SHARED_RAM region + ******************************************************************************/ +void marvell_program_mailbox(uintptr_t address) +{ + uintptr_t *mailbox = (void *)PLAT_MARVELL_MAILBOX_BASE; + + /* + * Ensure that the PLAT_MARVELL_MAILBOX_BASE is within + * MARVELL_SHARED_RAM region. + */ + assert((PLAT_MARVELL_MAILBOX_BASE >= MARVELL_SHARED_RAM_BASE) && + ((PLAT_MARVELL_MAILBOX_BASE + sizeof(*mailbox)) <= + (MARVELL_SHARED_RAM_BASE + MARVELL_SHARED_RAM_SIZE))); + + /* + * Remove A3700 specific checking after A7K/A8K implement + * the magic number for mailbox. + */ +#ifdef PLAT_a3700 + /* Add magic number to avoid wrong operation caused by dirty data */ + *mailbox = PLAT_MARVELL_MAILBOX_MAGIC_NUM; + *(mailbox + 1) = address; +#else + *mailbox = address; +#endif + /* Flush data cache if the mail box shared RAM is cached */ +#if PLAT_MARVELL_SHARED_RAM_CACHED + flush_dcache_range((uintptr_t)PLAT_MARVELL_MAILBOX_BASE, + 2 * sizeof(uint64_t)); +#endif +} + +/******************************************************************************* + * The ARM Standard platform definition of platform porting API + * `plat_setup_psci_ops`. + ******************************************************************************/ +int plat_setup_psci_ops(uintptr_t sec_entrypoint, + const plat_psci_ops_t **psci_ops) +{ + *psci_ops = &plat_arm_psci_pm_ops; + + /* Setup mailbox with entry point. */ + marvell_program_mailbox(sec_entrypoint); + return 0; +} |