diff options
Diffstat (limited to 'plat/rpi/rpi3/rpi3_bl1_setup.c')
-rw-r--r-- | plat/rpi/rpi3/rpi3_bl1_setup.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/plat/rpi/rpi3/rpi3_bl1_setup.c b/plat/rpi/rpi3/rpi3_bl1_setup.c new file mode 100644 index 0000000000..b869e9da89 --- /dev/null +++ b/plat/rpi/rpi3/rpi3_bl1_setup.c @@ -0,0 +1,95 @@ +/* + * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <platform_def.h> + +#include <arch.h> +#include <arch_helpers.h> +#include <common/bl_common.h> +#include <common/debug.h> +#include <lib/xlat_tables/xlat_mmu_helpers.h> +#include <lib/xlat_tables/xlat_tables_defs.h> + +#include "rpi3_private.h" + +/* Data structure which holds the extents of the trusted SRAM for BL1 */ +static meminfo_t bl1_tzram_layout; + +meminfo_t *bl1_plat_sec_mem_layout(void) +{ + return &bl1_tzram_layout; +} + +/******************************************************************************* + * Perform any BL1 specific platform actions. + ******************************************************************************/ +void bl1_early_platform_setup(void) +{ + /* Initialize the console to provide early debug support */ + rpi3_console_init(); + + /* Allow BL1 to see the whole Trusted RAM */ + bl1_tzram_layout.total_base = BL_RAM_BASE; + bl1_tzram_layout.total_size = BL_RAM_SIZE; +} + +/****************************************************************************** + * Perform the very early platform specific architecture setup. This only + * does basic initialization. Later architectural setup (bl1_arch_setup()) + * does not do anything platform specific. + *****************************************************************************/ +void bl1_plat_arch_setup(void) +{ + rpi3_setup_page_tables(bl1_tzram_layout.total_base, + bl1_tzram_layout.total_size, + BL_CODE_BASE, BL1_CODE_END, + BL1_RO_DATA_BASE, BL1_RO_DATA_END +#if USE_COHERENT_MEM + , BL_COHERENT_RAM_BASE, BL_COHERENT_RAM_END +#endif + ); + + enable_mmu_el3(0); +} + +void bl1_platform_setup(void) +{ + uint32_t __unused rev; + int __unused rc; + + rc = rpi3_vc_hardware_get_board_revision(&rev); + + if (rc == 0) { + const char __unused *model, __unused *info; + + switch (rev) { + case 0xA02082: + model = "Raspberry Pi 3 Model B"; + info = "(1GB, Sony, UK)"; + break; + case 0xA22082: + model = "Raspberry Pi 3 Model B"; + info = "(1GB, Embest, China)"; + break; + case 0xA020D3: + model = "Raspberry Pi 3 Model B+"; + info = "(1GB, Sony, UK)"; + break; + default: + model = "Unknown"; + info = "(Unknown)"; + ERROR("rpi3: Unknown board revision 0x%08x\n", rev); + break; + } + + NOTICE("rpi3: Detected: %s %s [0x%08x]\n", model, info, rev); + } else { + ERROR("rpi3: Unable to detect board revision\n"); + } + + /* Initialise the IO layer and register platform IO devices */ + plat_rpi3_io_setup(); +} |