diff options
Diffstat (limited to 'plat/hisilicon/poplar/include/poplar_layout.h')
| -rw-r--r-- | plat/hisilicon/poplar/include/poplar_layout.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/plat/hisilicon/poplar/include/poplar_layout.h b/plat/hisilicon/poplar/include/poplar_layout.h new file mode 100644 index 0000000..03047f9 --- /dev/null +++ b/plat/hisilicon/poplar/include/poplar_layout.h @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef POPLAR_LAYOUT_H +#define POPLAR_LAYOUT_H + +/* + * Boot memory layout definitions for the HiSilicon Poplar board + */ + +/* + * When Poplar is powered on, boot ROM verifies the initial content of + * boot media, loads it into low memory, and begins executing it + * in 32-bit mode. The image loaded is "l-loader.bin", which contains + * a small amount code along with an embedded ARM Trusted Firmware + * BL1 image. The main purpose of "l-loader" is to prepare the + * processor to execute the BL1 image in 64-bit mode, and to trigger + * that execution. + * + * Also embedded in "l-loader.bin" is a FIP image that contains + * other ARM Trusted Firmware images: BL2; BL31; and for BL33, + * U-Boot. When BL1 executes, it unpacks the BL2 image from the FIP + * image into a region of memory set aside to hold it. Similarly, + * BL2 unpacks BL31 into memory reserved for it, and unpacks U-Boot + * into high memory. + * + * Because the BL1 code is embedded in "l-loader", its base address + * in memory is derived from the base address of the "l-loader" + * text section, together with an offset. Memory space for BL2 is + * reserved immediately following BL1, and memory space is reserved + * for BL31 after that. ARM Trusted Firmware requires each of these + * memory regions to be aligned on page boundaries, so the size of + * each region is a multiple of a page size (ending in 000). Note + * that ARM Trusted Firmware requires the read-only and read-write + * regions of memory used for BL1 to be defined separately. + * + * --------------------- + * | (unused memory) | + * +-------------------+ - - - - - + * | (l-loader text) | \ + * +-------------------+ \ + * | BL1 (read-only) | \ \ + * |- - - - - - - - - -| | | + * | BL1 (read-write) | | | + * +-------------------+ > BL Memory | + * | Reserved for BL2 | | > "l-loader.bin" image + * +-------------------+ | | + * | Reserved for BL31 | / | + * +-------------------+ | + * . . . / + * +-------------------+ / + * | FIP | / + * +-------------------+ - - - - - + * . . . + * | (unused memory) | + * . . . + * +-------------------+ + * |Reserved for U-Boot| + * +-------------------+ + * . . . + * | (unused memory) | + * --------------------- + * + * The size of each of these regions is defined below. The base + * address of the "l-loader" TEXT section and the offset of the BL1 + * image within that serve as anchors for defining the positions of + * all other regions. The FIP is placed in a section of its own. + * + * A "BASE" is the memory address of the start of a region; a "LIMIT" + * marks its end. A "SIZE" is the size of a region (in bytes). An + * "OFFSET" is an offset to the start of a region relative to the + * base of the "l-loader" TEXT section (also a multiple of page size). + */ +#define LLOADER_TEXT_BASE 0x02001000 /* page aligned */ +#define BL1_OFFSET 0x0000D000 /* page multiple */ +#define FIP_BASE 0x02040000 + +/* + * FIP_BASE_EMMC = 0x40000 - 0x1000 + * = fip.bin offset - l-loader text offset + * in l-loader.bin + */ +#define FIP_BASE_EMMC 0x0003f000 + +#define BL1_RO_SIZE 0x00008000 /* page multiple */ +#define BL1_RW_SIZE 0x00008000 /* page multiple */ +#define BL1_SIZE (BL1_RO_SIZE + BL1_RW_SIZE) +#define BL2_SIZE 0x0000d000 /* page multiple */ +#define BL31_SIZE 0x00014000 +#if !POPLAR_RECOVERY +/* + * emmc partition1 4096KB + * - l-loader.bin 1984KB + * |- l-loader + bl1.bin 256KB + * |- fip.bin 1728KB (0x001b0000) + * - u-boot persistent data 64KB + * - uefi persistent data 2048KB + */ +#define FIP_SIZE 0x001b0000 /* absolute max */ +#else +/* + * same as above, but bootrom can only load an image (l-loader.bin) of + * 1024KB max, so after deducting the size of l-loader + bl1.bin (256KB), + * that leaves 768KB (0x000c0000) for fip.bin + */ +#define FIP_SIZE 0x000c0000 /* absolute max */ +#endif + + /* BL1_OFFSET */ /* (Defined above) */ +#define BL1_BASE (LLOADER_TEXT_BASE + BL1_OFFSET) +#define BL1_LIMIT (BL1_BASE + BL1_SIZE) + +#define BL1_RO_OFFSET (BL1_OFFSET) +#define BL1_RO_BASE (LLOADER_TEXT_BASE + BL1_RO_OFFSET) +#define BL1_RO_LIMIT (BL1_RO_BASE + BL1_RO_SIZE) + +#define BL1_RW_OFFSET (BL1_RO_OFFSET + BL1_RO_SIZE) +#define BL1_RW_BASE (LLOADER_TEXT_BASE + BL1_RW_OFFSET) +#define BL1_RW_LIMIT (BL1_RW_BASE + BL1_RW_SIZE) + +#define BL2_OFFSET (BL1_OFFSET + BL1_SIZE) +#define BL2_BASE (LLOADER_TEXT_BASE + BL2_OFFSET) +#define BL2_LIMIT (BL2_BASE + BL2_SIZE) + +#define BL31_OFFSET (BL2_OFFSET + BL2_SIZE) +#define BL31_BASE (LLOADER_TEXT_BASE + BL31_OFFSET) +#define BL31_LIMIT (BL31_BASE + BL31_SIZE) + +#endif /* POPLAR_LAYOUT_H */ |