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m68k/mac: Fix PRAM accessors

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PMU-based m68k Macs pre-date PowerMac-style NVRAM. Use the appropriate
PMU commands. Also implement the missing XPRAM accessors for VIA-based
Macs.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Finn Thain
2019-01-15 15:18:56 +11:00
committed by Greg Kroah-Hartman
parent a71fa0e3e5
commit aefcb7460e
2 changed files with 35 additions and 10 deletions
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include/uapi/linux/pmu.h
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@@ -19,7 +19,9 @@
#define PMU_POWER_CTRL 0x11 /* control power of some devices */
#define PMU_ADB_CMD 0x20 /* send ADB packet */
#define PMU_ADB_POLL_OFF 0x21 /* disable ADB auto-poll */
#define PMU_WRITE_XPRAM 0x32 /* write eXtended Parameter RAM */
#define PMU_WRITE_NVRAM 0x33 /* write non-volatile RAM */
#define PMU_READ_XPRAM 0x3a /* read eXtended Parameter RAM */
#define PMU_READ_NVRAM 0x3b /* read non-volatile RAM */
#define PMU_SET_RTC 0x30 /* set real-time clock */
#define PMU_READ_RTC 0x38 /* read real-time clock */