diff options
| -rw-r--r-- | arch/arm/include/asm/spl.h | 1 | ||||
| -rw-r--r-- | common/spl/Kconfig | 9 | ||||
| -rw-r--r-- | common/spl/Makefile | 1 | ||||
| -rw-r--r-- | common/spl/spl_xip.c | 28 |
4 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/include/asm/spl.h b/arch/arm/include/asm/spl.h index 5d7f7e6ec5..0e674704ab 100644 --- a/arch/arm/include/asm/spl.h +++ b/arch/arm/include/asm/spl.h @@ -29,6 +29,7 @@ enum { BOOT_DEVICE_I2C, BOOT_DEVICE_BOARD, BOOT_DEVICE_DFU, + BOOT_DEVICE_XIP, BOOT_DEVICE_NONE }; #endif diff --git a/common/spl/Kconfig b/common/spl/Kconfig index 732690cbc3..4de81392b0 100644 --- a/common/spl/Kconfig +++ b/common/spl/Kconfig @@ -437,6 +437,15 @@ config SPL_NOR_SUPPORT a memory-mapped device makes it very easy to access. Loading from NOR is typically achieved with just a memcpy(). +config SPL_XIP_SUPPORT + bool "Support XIP" + depends on SPL + help + Enable support for execute in place of U-Boot or kernel image. There + is no need to copy image from flash to ram if flash supports execute + in place. Its very useful in systems having enough flash but not + enough ram to load the image. + config SPL_ONENAND_SUPPORT bool "Support OneNAND flash" help diff --git a/common/spl/Makefile b/common/spl/Makefile index b3b34d6277..47a64dd7d0 100644 --- a/common/spl/Makefile +++ b/common/spl/Makefile @@ -12,6 +12,7 @@ ifdef CONFIG_SPL_BUILD obj-$(CONFIG_SPL_FRAMEWORK) += spl.o obj-$(CONFIG_SPL_LOAD_FIT) += spl_fit.o obj-$(CONFIG_SPL_NOR_SUPPORT) += spl_nor.o +obj-$(CONFIG_SPL_XIP_SUPPORT) += spl_xip.o obj-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o ifndef CONFIG_SPL_UBI obj-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o diff --git a/common/spl/spl_xip.c b/common/spl/spl_xip.c new file mode 100644 index 0000000000..18c7d11f2d --- /dev/null +++ b/common/spl/spl_xip.c @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2017 Vikas Manocha <vikas.manocha@st.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spl.h> + +static int spl_xip(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev) +{ +#ifdef CONFIG_SPL_OS_BOOT + if (!spl_start_uboot()) { + spl_image->arg = (void *)CONFIG_SYS_FDT_BASE; + spl_image->name = "Linux"; + spl_image->os = IH_OS_LINUX; + spl_image->load_addr = CONFIG_SYS_LOAD_ADDR; + spl_image->entry_point = CONFIG_SYS_LOAD_ADDR; + debug("spl: payload xipImage, load addr: 0x%lx\n", + spl_image->load_addr); + return 0; + } +#endif + return(spl_parse_image_header(spl_image, (const struct image_header *) + CONFIG_SYS_UBOOT_BASE)); +} +SPL_LOAD_IMAGE_METHOD("XIP", 0, BOOT_DEVICE_XIP, spl_xip); |