76 lines
2.3 KiB
Diff
76 lines
2.3 KiB
Diff
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diff --git a/include/configs/mt7986.h b/include/configs/mt7986.h
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index 0c41af1fc3..4ddf3cef89 100644
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--- a/include/configs/mt7986.h
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+++ b/include/configs/mt7986.h
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@@ -9,6 +9,8 @@
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#ifndef __MT7986_H
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#define __MT7986_H
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+#include <linux/stringify.h>
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+
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/* Uboot definition */
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#define CFG_SYS_UBOOT_BASE CONFIG_TEXT_BASE
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@@ -18,4 +20,61 @@
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/* DRAM */
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#define CFG_SYS_SDRAM_BASE 0x40000000
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+#define BOOT_TARGET_DEVICES(func) \
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+ func(MMC, mmc, 0)
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+
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+#include <config_distro_bootcmd.h>
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+
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+/*
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+ * Linux mt6978a.dtsi defines reserved memory in the first 256MB:
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+ * 0x4300_0000 - 0x4302_FFFF
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+ * 0x4FC0_0000 - 0x4FCF_FFFF
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+ * 0x4FD0_0000 - 0x4FD3_FFFF
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+ * 0x4FD4_0000 - 0x4FD7_FFFF
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+ * 0x4FD8_0000 - 0x4FDA_3FFF
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+ *
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+ * Getting uboot to obey these by adding them into the DTS here
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+ * got it respecting them. To not clobber these memory addresses
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+ * fdt_high and initrd_high are being set.
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+ */
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+
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+/*
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+ * Do not relocate FDT, because relocate fails to alloc when
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+ * initrd_high is set to 0x4FC0_0000 to keep initrd out of
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+ * reserved memory. This is irregardless of the reserved
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+ * addresses above still being valid as far as configuraiton
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+ * is concerned at that point, so I'm at a loss.
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+ */
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+#define FDT_HIGH __stringify(0xffffffffffffffff)
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+/* No reloc might work now that FDT is in-place, but this should be more compatible */
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+#define INITRD_HIGH __stringify(0x4fc00000)
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+
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+/* Seems to be the address uboot would relocate to so place there */
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+#define KERNEL_ADDR_R __stringify(0x43200000)
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+/* Right before the kernel, after that reserved memory, probably best spots exist */
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+#define FDT_ADDR_R __stringify(0x43030000)
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+
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+#define RAMDISK_ADDR_R __stringify(0x4b100000)
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+
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+/* Anything different means no-boot */
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+#define BOOTM_SIZE __stringify(0x10000000)
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+
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+/* These can be outside Linux's 256MB */
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+#define SCRIPTADDR __stringify(0x90000000)
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+#define PXEFILE_ADDR_R __stringify(0x90100000)
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+
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+
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+/* No comp_addr supplied */
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+#define CFG_EXTRA_ENV_SETTINGS \
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+ "bootm_size=" BOOTM_SIZE "\0" \
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+ "fdt_addr_r=" FDT_ADDR_R "\0" \
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+ "fdt_high=" FDT_HIGH "\0" \
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+ "initrd_high=" INITRD_HIGH "\0" \
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+ "kernel_addr_r=" KERNEL_ADDR_R "\0" \
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+ "pxefile_addr_r=" PXEFILE_ADDR_R "\0" \
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+ "ramdisk_addr_r=" RAMDISK_ADDR_R "\0" \
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+ "scriptaddr=" SCRIPTADDR "\0" \
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+ "fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
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+ BOOTENV
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+
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#endif
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