1 // SPDX-License-Identifier: GPL-2.0-only 1
2 /*
3 * Hardware parameter area specific to Sharp S
4 *
5 * Copyright (c) 2005 Richard Purdie
6 *
7 * Based on Sharp's 2.4 kernel patches
8 */
9
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/string.h>
13 #include <asm/mach/sharpsl_param.h>
14 #include <asm/page.h>
15
16 /*
17 * Certain hardware parameters determined at t
18 * typically including LCD parameters are load
19 * address PARAM_BASE. As the kernel will over
20 * them early in the boot process, then pass t
21 * Not all devices use all parameters but the
22 */
23 #ifdef CONFIG_ARCH_SA1100
24 #define PARAM_BASE 0xe8ffc000
25 #define param_start(x) (void *)(x)
26 #else
27 #define PARAM_BASE 0xa0000a00
28 #define param_start(x) __va(x)
29 #endif
30 #define MAGIC_CHG(a,b,c,d) ( ( d << 24 ) | ( c
31
32 #define COMADJ_MAGIC MAGIC_CHG('C','M','A',
33 #define UUID_MAGIC MAGIC_CHG('U','U','I',
34 #define TOUCH_MAGIC MAGIC_CHG('T','U','C',
35 #define AD_MAGIC MAGIC_CHG('B','V','A',
36 #define PHAD_MAGIC MAGIC_CHG('P','H','A',
37
38 struct sharpsl_param_info sharpsl_param;
39 EXPORT_SYMBOL(sharpsl_param);
40
41 void sharpsl_save_param(void)
42 {
43 struct sharpsl_param_info *params = pa
44
45 memcpy(&sharpsl_param, params, sizeof(
46
47 if (sharpsl_param.comadj_keyword != CO
48 sharpsl_param.comadj=-1;
49
50 if (sharpsl_param.phad_keyword != PHAD
51 sharpsl_param.phadadj=-1;
52
53 if (sharpsl_param.uuid_keyword != UUID
54 sharpsl_param.uuid[0]=-1;
55
56 if (sharpsl_param.touch_keyword != TOU
57 sharpsl_param.touch_xp=-1;
58
59 if (sharpsl_param.adadj_keyword != AD_
60 sharpsl_param.adadj=-1;
61 }
62
63
64
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