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Diffstat (limited to 'plat/gxb/aarch64/common.c')
| -rw-r--r-- | plat/gxb/aarch64/common.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/plat/gxb/aarch64/common.c b/plat/gxb/aarch64/common.c new file mode 100644 index 0000000..2982880 --- /dev/null +++ b/plat/gxb/aarch64/common.c @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2013-2014, 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 <bl_common.h> +#include <mmio.h> +#include <platform.h> +#include <platform_def.h> +#include <xlat_tables.h> +#include "../plat_def.h" +#include <runtime_svc.h> +#include <arch_helpers.h> +#include <asm/arch/watchdog.h> +#include <stdio.h> + +extern int console_puts(const char *s); +extern void console_put_hex(unsigned long data,unsigned int bitlen); + +#ifdef BL2_ENABLE_MMU +/* + * Table of regions to map using the MMU. + * This doesn't include Trusted RAM as the 'mem_layout' argument passed to + * configure_mmu_elx() will give the available subset of that, + */ +static const mmap_region_t plat_mmap[] = { + { MAILBOX_START, MAILBOX_SIZE, MT_DEVICE | MT_RW | MT_SECURE }, + { TZROM_BASE, TZROM_SIZE, MT_MEMORY | MT_RO | MT_SECURE }, + { DRAM_BASE, DRAM_SIZE, MT_MEMORY | MT_RW | MT_NS }, + { SPI_BASE, SPI_SIZE, MT_MEMORY | MT_RW | MT_SECURE }, + { DEVICEC_BASE, DEVICEC_SIZE, MT_DEVICE | MT_RW | MT_SECURE }, + { DEVICED_BASE, DEVICED_SIZE, MT_DEVICE | MT_RW | MT_SECURE }, + { DEVICEE_BASE, DEVICEE_SIZE, MT_DEVICE | MT_RW | MT_SECURE }, + {0} +}; + +/******************************************************************************* + * Macro generating the code for the function setting up the pagetables as per + * the platform memory map & initialize the mmu, for the given exception level + ******************************************************************************/ +#define DEFINE_CONFIGURE_MMU_EL(_el) \ + void configure_mmu_el##_el(unsigned long total_base, \ + unsigned long total_size, \ + unsigned long ro_start, \ + unsigned long ro_limit, \ + unsigned long coh_start, \ + unsigned long coh_limit) \ + { \ + mmap_add_region(total_base, \ + total_size, \ + MT_MEMORY | MT_RW | MT_SECURE); \ + mmap_add_region(ro_start, ro_limit - ro_start, \ + MT_MEMORY | MT_RO | MT_SECURE); \ + mmap_add_region(coh_start, coh_limit - coh_start,\ + MT_DEVICE | MT_RW | MT_SECURE); \ + mmap_add(plat_mmap); \ + init_xlat_tables(); \ + \ + enable_mmu_el##_el(); \ + } + +/* Define EL1 and EL3 variants of the function initialising the MMU */ +DEFINE_CONFIGURE_MMU_EL(1) +DEFINE_CONFIGURE_MMU_EL(3) +#endif + +unsigned long plat_get_ns_image_entrypoint(void) +{ + return NS_IMAGE_OFFSET; +} + +uint64_t plat_get_syscnt_freq(void) +{ + uint64_t counter_base_frequency; + + /* Read the frequency from Frequency modes table */ + counter_base_frequency = mmio_read_32(SYS_CNTCTL_BASE + CNTFID_OFF); + + /* The first entry of the frequency modes table must not be 0 */ + assert(counter_base_frequency != 0); + + return counter_base_frequency; +} + +void plat_report_exception(void){ + serial_puts("Enter exception!\nValue: 0x"); + serial_put_hex(read_esr_el1(), 32); + serial_puts("\n"); + reset_system(); + /*never return*/ + while (1) ; +}
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