rk3568 rt uboot init

hc

2023-11-06 9df731a176aab8e03b984b681b1bea01ccff6644

 u-boot/drivers/core/read.c
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@@ -8,6 +8,7 @@
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 #include <common.h>
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 #include <dm.h>
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 #include <mapmem.h>
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+#include <asm/io.h>
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 #include <dm/of_access.h>
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 int dev_read_u32_default(struct udevice *dev, const char *propname, int def)
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@@ -63,6 +64,16 @@
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 	return dev_read_addr_index(dev, 0);
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 }
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+void *dev_remap_addr_index(struct udevice *dev, int index)
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+{
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+        fdt_addr_t addr = dev_read_addr_index(dev, index);
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+
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+        if (addr == FDT_ADDR_T_NONE)
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+                return NULL;
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+
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+        return map_physmem(addr, 0, MAP_NOCACHE);
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+}
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+
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 void *dev_read_addr_ptr(struct udevice *dev)
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 {
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 	fdt_addr_t addr = dev_read_addr(dev);