Lines Matching +full:- +full:sram

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
19  * Within the SRAM area the following ranges are forced by the system
22  * 0x000000 - 0x0003ff	diagnostic area, destroyed upon a reboot
23  * 0x000400 - ENDofRAM	storage area, available to operating systems
28  * ID value is found, the firmware considers the SRAM clean, i.e.
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
38  * as well as the size of SRAM available, which can be 1MiB or 2MiB
42  * The firmware only handles the MS02-NV board if installed in the
44  * stored in the SRAM cannot be relied upon.  But from the hardware
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.
59 /* MS02-NV iomem register offsets. */
62 /* MS02-NV CSR status bits. */
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. */
74 #define MS02NV_DIAG_TEST	0x01		/* SRAM test done (?) */
75 #define MS02NV_DIAG_RO		0x02		/* SRAM r/o test done */
76 #define MS02NV_DIAG_RW		0x04		/* SRAM r/w test done */
77 #define MS02NV_DIAG_FAIL	0x08		/* SRAM test failed */
78 #define MS02NV_DIAG_SIZE_MASK	0xf0		/* SRAM size mask */
79 #define MS02NV_DIAG_SIZE_SHIFT	0x10		/* SRAM size shift (left) */
81 /* MS02-NV general constants. */
82 #define MS02NV_ID		0x03021966	/* MS02-NV magic ID value */