Kumar Gala wrote:
+#define SS_MEMSAVE    0x00

What is this? add a comment?

There's a comment where MEMSAVE is used:

        /* The first 2 words of memory are used to communicate with the
         * bootloader, to tell it how to resume.
         *
         * The first word is the magic number 0xf5153ae5, and the second
         * is the pointer to mpc83xx_deep_resume.
         *
         * The original content of these two words is saved in the state
         * save area.
         */

We could stick a /* First 8 bytes of RAM */ after the #define if you want.

+#define SS_HID        0x08 /* 3 HIDs */
+#define SS_IABR        0x14 /* 2 IABRs */
+#define SS_IBCR        0x1c
+#define SS_DABR        0x20 /* 2 DABRs */
+#define SS_DBCR        0x28
+#define SS_SP        0x2c
+#define SS_SR        0x30 /* 16 segment registers */
+#define SS_CURRENT    0x70

How about SS_R2 to match the pmac sleep.S code. It will make refactoring all this easier in the future.

OK.

-Scott
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