SPL: Add support for loading image from ram in SPL.
Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
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README
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README
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@ -2669,6 +2669,9 @@ FIT uImage format:
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CONFIG_SPL_SPI_SUPPORT
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CONFIG_SPL_SPI_SUPPORT
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Support for drivers/spi/libspi.o in SPL binary
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Support for drivers/spi/libspi.o in SPL binary
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CONFIG_SPL_RAM_DEVICE
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Support for running image already present in ram, in SPL binary
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CONFIG_SPL_LIBGENERIC_SUPPORT
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CONFIG_SPL_LIBGENERIC_SUPPORT
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Support for lib/libgeneric.o in SPL binary
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Support for lib/libgeneric.o in SPL binary
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@ -128,6 +128,23 @@ static void __noreturn jump_to_image_no_args(void)
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image_entry((u32 *)boot_params_ptr_addr);
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image_entry((u32 *)boot_params_ptr_addr);
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}
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}
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#ifdef CONFIG_SPL_RAM_DEVICE
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static void spl_ram_load_image(void)
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{
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const struct image_header *header;
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/*
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* Get the header. It will point to an address defined by handoff
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* which will tell where the image located inside the flash. For
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* now, it will temporary fixed to address pointed by U-Boot.
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*/
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header = (struct image_header *)
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(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
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spl_parse_image_header(header);
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}
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#endif
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void board_init_r(gd_t *dummy1, ulong dummy2)
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void board_init_r(gd_t *dummy1, ulong dummy2)
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{
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{
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u32 boot_device;
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u32 boot_device;
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@ -145,6 +162,11 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
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boot_device = spl_boot_device();
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boot_device = spl_boot_device();
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debug("boot device - %d\n", boot_device);
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debug("boot device - %d\n", boot_device);
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switch (boot_device) {
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switch (boot_device) {
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#ifdef CONFIG_SPL_RAM_DEVICE
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case BOOT_DEVICE_RAM:
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spl_ram_load_image();
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break;
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#endif
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#ifdef CONFIG_SPL_MMC_SUPPORT
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#ifdef CONFIG_SPL_MMC_SUPPORT
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case BOOT_DEVICE_MMC1:
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case BOOT_DEVICE_MMC1:
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case BOOT_DEVICE_MMC2:
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case BOOT_DEVICE_MMC2:
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@ -66,6 +66,7 @@ CONFIG_SPL_DMA_SUPPORT (drivers/dma/libdma.o)
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CONFIG_SPL_POST_MEM_SUPPORT (post/drivers/memory.o)
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CONFIG_SPL_POST_MEM_SUPPORT (post/drivers/memory.o)
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CONFIG_SPL_NAND_LOAD (drivers/mtd/nand/nand_spl_load.o)
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CONFIG_SPL_NAND_LOAD (drivers/mtd/nand/nand_spl_load.o)
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CONFIG_SPL_SPI_LOAD (drivers/mtd/spi/spi_spl_load.o)
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CONFIG_SPL_SPI_LOAD (drivers/mtd/spi/spi_spl_load.o)
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CONFIG_SPL_RAM_DEVICE (common/spl/spl.c)
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Normally CPU is assumed to be the same between the SPL and normal
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Normally CPU is assumed to be the same between the SPL and normal
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