env: export fdt_blob to the environment variable
Export fdt_blob to the environment variable. So that we may use it to boot Linux. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>utp
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2419cd16a1
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545dfd1014
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@ -446,6 +446,9 @@ static int initr_env(void)
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env_relocate();
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env_relocate();
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else
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else
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set_default_env(NULL);
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set_default_env(NULL);
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#ifdef CONFIG_OF_CONTROL
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setenv_addr("fdtcontroladdr", gd->fdt_blob);
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#endif
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/* Initialize from environment */
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/* Initialize from environment */
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load_addr = getenv_ulong("loadaddr", 16, load_addr);
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load_addr = getenv_ulong("loadaddr", 16, load_addr);
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@ -156,7 +156,10 @@ address of the fdt binary blob, and will override either of the options.
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Be aware that this environment variable is checked prior to relocation,
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Be aware that this environment variable is checked prior to relocation,
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when only the compiled-in environment is available. Therefore it is not
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when only the compiled-in environment is available. Therefore it is not
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possible to define this variable in the saved SPI/NAND flash
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possible to define this variable in the saved SPI/NAND flash
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environment, for example (it will be ignored).
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environment, for example (it will be ignored). After relocation, this
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variable will be set to the address of the newly relocated fdt blob.
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It is read-only and cannot be changed. It can optionally be used to
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control the boot process of Linux with bootm/bootz commands.
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To use this, put something like this in your board header file:
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To use this, put something like this in your board header file:
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