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292627bb5e
Create boot parameters in the end of SRAM region, insert kernel arguments specified in -append there. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
25 lines
528 B
C
25 lines
528 B
C
#ifndef HW_XTENSA_BOOTPARAM
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#define HW_XTENSA_BOOTPARAM
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typedef struct BpTag {
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uint16_t tag;
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uint16_t size;
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} BpTag;
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static inline ram_addr_t put_tag(ram_addr_t addr, uint16_t tag,
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size_t size, const void *data)
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{
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BpTag bp_tag = {
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.tag = tswap16(tag),
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.size = tswap16((size + 3) & ~3),
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};
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cpu_physical_memory_write(addr, &bp_tag, sizeof(bp_tag));
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addr += sizeof(bp_tag);
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cpu_physical_memory_write(addr, data, size);
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addr += (size + 3) & ~3;
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return addr;
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}
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#endif
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