diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/mtd/chips/cfi_probe.c | 20 | ||||
-rw-r--r-- | drivers/mtd/chips/cfi_util.c | 26 |
2 files changed, 25 insertions, 21 deletions
diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c index e706be2ad0cb..e63e6749429a 100644 --- a/drivers/mtd/chips/cfi_probe.c +++ b/drivers/mtd/chips/cfi_probe.c | |||
@@ -44,14 +44,14 @@ do { \ | |||
44 | 44 | ||
45 | #define xip_enable(base, map, cfi) \ | 45 | #define xip_enable(base, map, cfi) \ |
46 | do { \ | 46 | do { \ |
47 | qry_mode_off(base, map, cfi); \ | 47 | cfi_qry_mode_off(base, map, cfi); \ |
48 | xip_allowed(base, map); \ | 48 | xip_allowed(base, map); \ |
49 | } while (0) | 49 | } while (0) |
50 | 50 | ||
51 | #define xip_disable_qry(base, map, cfi) \ | 51 | #define xip_disable_qry(base, map, cfi) \ |
52 | do { \ | 52 | do { \ |
53 | xip_disable(); \ | 53 | xip_disable(); \ |
54 | qry_mode_on(base, map, cfi); \ | 54 | cfi_qry_mode_on(base, map, cfi); \ |
55 | } while (0) | 55 | } while (0) |
56 | 56 | ||
57 | #else | 57 | #else |
@@ -87,7 +87,7 @@ static int __xipram cfi_probe_chip(struct map_info *map, __u32 base, | |||
87 | } | 87 | } |
88 | 88 | ||
89 | xip_disable(); | 89 | xip_disable(); |
90 | if (!qry_mode_on(base, map, cfi)) { | 90 | if (!cfi_qry_mode_on(base, map, cfi)) { |
91 | xip_enable(base, map, cfi); | 91 | xip_enable(base, map, cfi); |
92 | return 0; | 92 | return 0; |
93 | } | 93 | } |
@@ -108,13 +108,13 @@ static int __xipram cfi_probe_chip(struct map_info *map, __u32 base, | |||
108 | start = i << cfi->chipshift; | 108 | start = i << cfi->chipshift; |
109 | /* This chip should be in read mode if it's one | 109 | /* This chip should be in read mode if it's one |
110 | we've already touched. */ | 110 | we've already touched. */ |
111 | if (qry_present(map, start, cfi)) { | 111 | if (cfi_qry_present(map, start, cfi)) { |
112 | /* Eep. This chip also had the QRY marker. | 112 | /* Eep. This chip also had the QRY marker. |
113 | * Is it an alias for the new one? */ | 113 | * Is it an alias for the new one? */ |
114 | qry_mode_off(start, map, cfi); | 114 | cfi_qry_mode_off(start, map, cfi); |
115 | 115 | ||
116 | /* If the QRY marker goes away, it's an alias */ | 116 | /* If the QRY marker goes away, it's an alias */ |
117 | if (!qry_present(map, start, cfi)) { | 117 | if (!cfi_qry_present(map, start, cfi)) { |
118 | xip_allowed(base, map); | 118 | xip_allowed(base, map); |
119 | printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n", | 119 | printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n", |
120 | map->name, base, start); | 120 | map->name, base, start); |
@@ -124,9 +124,9 @@ static int __xipram cfi_probe_chip(struct map_info *map, __u32 base, | |||
124 | * unfortunate. Stick the new chip in read mode | 124 | * unfortunate. Stick the new chip in read mode |
125 | * too and if it's the same, assume it's an alias. */ | 125 | * too and if it's the same, assume it's an alias. */ |
126 | /* FIXME: Use other modes to do a proper check */ | 126 | /* FIXME: Use other modes to do a proper check */ |
127 | qry_mode_off(base, map, cfi); | 127 | cfi_qry_mode_off(base, map, cfi); |
128 | 128 | ||
129 | if (qry_present(map, base, cfi)) { | 129 | if (cfi_qry_present(map, base, cfi)) { |
130 | xip_allowed(base, map); | 130 | xip_allowed(base, map); |
131 | printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n", | 131 | printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n", |
132 | map->name, base, start); | 132 | map->name, base, start); |
@@ -141,7 +141,7 @@ static int __xipram cfi_probe_chip(struct map_info *map, __u32 base, | |||
141 | cfi->numchips++; | 141 | cfi->numchips++; |
142 | 142 | ||
143 | /* Put it back into Read Mode */ | 143 | /* Put it back into Read Mode */ |
144 | qry_mode_off(base, map, cfi); | 144 | cfi_qry_mode_off(base, map, cfi); |
145 | xip_allowed(base, map); | 145 | xip_allowed(base, map); |
146 | 146 | ||
147 | printk(KERN_INFO "%s: Found %d x%d devices at 0x%x in %d-bit bank\n", | 147 | printk(KERN_INFO "%s: Found %d x%d devices at 0x%x in %d-bit bank\n", |
@@ -201,7 +201,7 @@ static int __xipram cfi_chip_setup(struct map_info *map, | |||
201 | cfi_read_query(map, base + 0xf * ofs_factor); | 201 | cfi_read_query(map, base + 0xf * ofs_factor); |
202 | 202 | ||
203 | /* Put it back into Read Mode */ | 203 | /* Put it back into Read Mode */ |
204 | qry_mode_off(base, map, cfi); | 204 | cfi_qry_mode_off(base, map, cfi); |
205 | xip_allowed(base, map); | 205 | xip_allowed(base, map); |
206 | 206 | ||
207 | /* Do any necessary byteswapping */ | 207 | /* Do any necessary byteswapping */ |
diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c index 8d7553670526..34d40e25d312 100644 --- a/drivers/mtd/chips/cfi_util.c +++ b/drivers/mtd/chips/cfi_util.c | |||
@@ -24,8 +24,8 @@ | |||
24 | #include <linux/mtd/cfi.h> | 24 | #include <linux/mtd/cfi.h> |
25 | #include <linux/mtd/compatmac.h> | 25 | #include <linux/mtd/compatmac.h> |
26 | 26 | ||
27 | int __xipram qry_present(struct map_info *map, __u32 base, | 27 | int __xipram cfi_qry_present(struct map_info *map, __u32 base, |
28 | struct cfi_private *cfi) | 28 | struct cfi_private *cfi) |
29 | { | 29 | { |
30 | int osf = cfi->interleave * cfi->device_type; /* scale factor */ | 30 | int osf = cfi->interleave * cfi->device_type; /* scale factor */ |
31 | map_word val[3]; | 31 | map_word val[3]; |
@@ -50,35 +50,39 @@ int __xipram qry_present(struct map_info *map, __u32 base, | |||
50 | 50 | ||
51 | return 1; /* "QRY" found */ | 51 | return 1; /* "QRY" found */ |
52 | } | 52 | } |
53 | EXPORT_SYMBOL_GPL(cfi_qry_present); | ||
53 | 54 | ||
54 | int __xipram qry_mode_on(uint32_t base, struct map_info *map, | 55 | int __xipram cfi_qry_mode_on(uint32_t base, struct map_info *map, |
55 | struct cfi_private *cfi) | 56 | struct cfi_private *cfi) |
56 | { | 57 | { |
57 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); | 58 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); |
58 | cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL); | 59 | cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL); |
59 | if (qry_present(map, base, cfi)) | 60 | if (cfi_qry_present(map, base, cfi)) |
60 | return 1; | 61 | return 1; |
61 | /* QRY not found probably we deal with some odd CFI chips */ | 62 | /* QRY not found probably we deal with some odd CFI chips */ |
62 | /* Some revisions of some old Intel chips? */ | 63 | /* Some revisions of some old Intel chips? */ |
63 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); | 64 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); |
64 | cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL); | 65 | cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL); |
65 | cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL); | 66 | cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL); |
66 | if (qry_present(map, base, cfi)) | 67 | if (cfi_qry_present(map, base, cfi)) |
67 | return 1; | 68 | return 1; |
68 | /* ST M29DW chips */ | 69 | /* ST M29DW chips */ |
69 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); | 70 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); |
70 | cfi_send_gen_cmd(0x98, 0x555, base, map, cfi, cfi->device_type, NULL); | 71 | cfi_send_gen_cmd(0x98, 0x555, base, map, cfi, cfi->device_type, NULL); |
71 | if (qry_present(map, base, cfi)) | 72 | if (cfi_qry_present(map, base, cfi)) |
72 | return 1; | 73 | return 1; |
73 | /* QRY not found */ | 74 | /* QRY not found */ |
74 | return 0; | 75 | return 0; |
75 | } | 76 | } |
76 | void __xipram qry_mode_off(uint32_t base, struct map_info *map, | 77 | EXPORT_SYMBOL_GPL(cfi_qry_mode_on); |
77 | struct cfi_private *cfi) | 78 | |
79 | void __xipram cfi_qry_mode_off(uint32_t base, struct map_info *map, | ||
80 | struct cfi_private *cfi) | ||
78 | { | 81 | { |
79 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); | 82 | cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); |
80 | cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL); | 83 | cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL); |
81 | } | 84 | } |
85 | EXPORT_SYMBOL_GPL(cfi_qry_mode_off); | ||
82 | 86 | ||
83 | struct cfi_extquery * | 87 | struct cfi_extquery * |
84 | __xipram cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* name) | 88 | __xipram cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* name) |
@@ -104,7 +108,7 @@ __xipram cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* n | |||
104 | #endif | 108 | #endif |
105 | 109 | ||
106 | /* Switch it into Query Mode */ | 110 | /* Switch it into Query Mode */ |
107 | qry_mode_on(base, map, cfi); | 111 | cfi_qry_mode_on(base, map, cfi); |
108 | /* Read in the Extended Query Table */ | 112 | /* Read in the Extended Query Table */ |
109 | for (i=0; i<size; i++) { | 113 | for (i=0; i<size; i++) { |
110 | ((unsigned char *)extp)[i] = | 114 | ((unsigned char *)extp)[i] = |
@@ -112,7 +116,7 @@ __xipram cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* n | |||
112 | } | 116 | } |
113 | 117 | ||
114 | /* Make sure it returns to read mode */ | 118 | /* Make sure it returns to read mode */ |
115 | qry_mode_off(base, map, cfi); | 119 | cfi_qry_mode_off(base, map, cfi); |
116 | 120 | ||
117 | #ifdef CONFIG_MTD_XIP | 121 | #ifdef CONFIG_MTD_XIP |
118 | (void) map_read(map, base); | 122 | (void) map_read(map, base); |