Lines Matching +full:battery +full:- +full:backed

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5  *	DEC MS02-NV (54-20948-01) battery backed-up NVRAM module for
16  * 0x000000 - 0x3fffff	SRAM
17  * 0x400000 - 0x7fffff	CSR
22  * 0x000000 - 0x0003ff	diagnostic area, destroyed upon a reboot
23  * 0x000400 - ENDofRAM	storage area, available to operating systems
29  * containing no valid data, and disables the battery resulting in
31  * for the start address of the user-available is 0x001000 which is
36  * operating system, a magic ID to distinguish a MS02-NV board from
42  * The firmware only handles the MS02-NV board if installed in the
46  * system -- only the 1st slot needs to be filled with a DRAM module.
47  * The MS02-NV board is ECC-protected, like other MS02 memory boards.
49  * The state of the battery as provided by the CSR is reflected on
50  * the two onboard LEDs.  When facing the battery side of the board,
51  * with the LEDs at the top left and the battery at the bottom right
55  * left LED		battery disable status: lit = enabled
56  * right LED		battery condition status: lit = OK
59 /* MS02-NV iomem register offsets. */
62 /* MS02-NV CSR status bits. */
63 #define MS02NV_CSR_BATT_OK	0x01		/* battery OK */
64 #define MS02NV_CSR_BATT_OFF	0x02		/* battery disabled */
67 /* MS02-NV memory offsets. */
69 #define MS02NV_MAGIC		0x0003fc	/* MS02-NV magic ID */
71 #define MS02NV_RAM		0x001000	/* user-exposed RAM start */
73 /* MS02-NV diagnostic status bits. */
81 /* MS02-NV general constants. */
82 #define MS02NV_ID		0x03021966	/* MS02-NV magic ID value */