diff options
Diffstat (limited to 'plat/mediatek/mt6795/plat_sip_svc.c')
-rw-r--r-- | plat/mediatek/mt6795/plat_sip_svc.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/plat/mediatek/mt6795/plat_sip_svc.c b/plat/mediatek/mt6795/plat_sip_svc.c new file mode 100644 index 00000000..9bb0f34e --- /dev/null +++ b/plat/mediatek/mt6795/plat_sip_svc.c @@ -0,0 +1,89 @@ +/* + * 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 <arch.h> +#include <arch_helpers.h> +#include <assert.h> +#include <console.h> +#include <debug.h> +#include <mmio.h> +#include <mt_cpuxgpt.h> +#include <mtk_sip_svc.h> +#include <plat_private.h> +#include <platform.h> +#include <platform_def.h> +#include <mtk_plat_common.h> +#include <runtime_svc.h> +#include <xlat_tables.h> + +/******************************************************************************* + * SIP top level handler for servicing SMCs. + ******************************************************************************/ +uint64_t mediatek_plat_sip_handler(uint32_t smc_fid, + uint64_t x1, + uint64_t x2, + uint64_t x3, + uint64_t x4, + void *cookie, + void *handle, + uint64_t flags) +{ + uint64_t rc = 0; + uint32_t ns; + + /* Determine which security state this SMC originated from */ + ns = is_caller_non_secure(flags); + + VERBOSE("sip_smc_handler\n"); + VERBOSE("id=0x%x\n", smc_fid); + VERBOSE("x1=0x%lx, x2=0x%lx, x3=0x%lx, x4=0x%lx\n", x1, x2, x3, x4); + + if (!ns) { + /* SiP SMC service secure world's call */ + switch (smc_fid) { + default: + rc = SMC_UNK; + } + } else { + /* SiP SMC service normal world's call */ + switch (smc_fid) { + default: + rc = SMC_UNK; + } + } + + if (rc == SMC_UNK) { + console_init(gteearg.atf_log_port, + UART_CLOCK, UART_BAUDRATE); + ERROR("%s: unhandled NS(%d) SMC (0x%x)\n", + __func__, ns, smc_fid); + console_uninit(); + } + SMC_RET1(handle, rc); +} |