diff options
author | John W. Linville <linville@tuxdriver.com> | 2011-06-08 13:44:21 -0400 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2011-06-08 13:44:21 -0400 |
commit | c0c33addcba2ce753b4e2746db99feaae2f82a85 (patch) | |
tree | dab480183ac0e64bfe9250e1f294705d1a424c78 /drivers/bcma | |
parent | ffbc03bc75b39c7bd412e7cc6d2185c11b0ffedd (diff) | |
parent | 931749bf78b969c54de9bbc67cf29b13a40bb73b (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Diffstat (limited to 'drivers/bcma')
-rw-r--r-- | drivers/bcma/Kconfig | 5 | ||||
-rw-r--r-- | drivers/bcma/Makefile | 2 | ||||
-rw-r--r-- | drivers/bcma/bcma_private.h | 3 | ||||
-rw-r--r-- | drivers/bcma/driver_pci.c | 23 | ||||
-rw-r--r-- | drivers/bcma/host_pci.c | 52 | ||||
-rw-r--r-- | drivers/bcma/main.c | 9 | ||||
-rw-r--r-- | drivers/bcma/sprom.c | 162 |
7 files changed, 255 insertions, 1 deletions
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig index 353781b5b78b..83e9adf46441 100644 --- a/drivers/bcma/Kconfig +++ b/drivers/bcma/Kconfig | |||
@@ -13,6 +13,11 @@ config BCMA | |||
13 | Bus driver for Broadcom specific Advanced Microcontroller Bus | 13 | Bus driver for Broadcom specific Advanced Microcontroller Bus |
14 | Architecture. | 14 | Architecture. |
15 | 15 | ||
16 | # Support for Block-I/O. SELECT this from the driver that needs it. | ||
17 | config BCMA_BLOCKIO | ||
18 | bool | ||
19 | depends on BCMA | ||
20 | |||
16 | config BCMA_HOST_PCI_POSSIBLE | 21 | config BCMA_HOST_PCI_POSSIBLE |
17 | bool | 22 | bool |
18 | depends on BCMA && PCI = y | 23 | depends on BCMA && PCI = y |
diff --git a/drivers/bcma/Makefile b/drivers/bcma/Makefile index 0d56245bcb79..cde0182bd1dc 100644 --- a/drivers/bcma/Makefile +++ b/drivers/bcma/Makefile | |||
@@ -1,4 +1,4 @@ | |||
1 | bcma-y += main.o scan.o core.o | 1 | bcma-y += main.o scan.o core.o sprom.o |
2 | bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o | 2 | bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o |
3 | bcma-y += driver_pci.o | 3 | bcma-y += driver_pci.o |
4 | bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o | 4 | bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o |
diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h index 2f72e9c585fd..12a75ab3dd23 100644 --- a/drivers/bcma/bcma_private.h +++ b/drivers/bcma/bcma_private.h | |||
@@ -19,6 +19,9 @@ extern void bcma_bus_unregister(struct bcma_bus *bus); | |||
19 | /* scan.c */ | 19 | /* scan.c */ |
20 | int bcma_bus_scan(struct bcma_bus *bus); | 20 | int bcma_bus_scan(struct bcma_bus *bus); |
21 | 21 | ||
22 | /* sprom.c */ | ||
23 | int bcma_sprom_get(struct bcma_bus *bus); | ||
24 | |||
22 | #ifdef CONFIG_BCMA_HOST_PCI | 25 | #ifdef CONFIG_BCMA_HOST_PCI |
23 | /* host_pci.c */ | 26 | /* host_pci.c */ |
24 | extern int __init bcma_host_pci_init(void); | 27 | extern int __init bcma_host_pci_init(void); |
diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c index e757e4e3c7e2..789d68b4858b 100644 --- a/drivers/bcma/driver_pci.c +++ b/drivers/bcma/driver_pci.c | |||
@@ -161,3 +161,26 @@ void bcma_core_pci_init(struct bcma_drv_pci *pc) | |||
161 | { | 161 | { |
162 | bcma_pcicore_serdes_workaround(pc); | 162 | bcma_pcicore_serdes_workaround(pc); |
163 | } | 163 | } |
164 | |||
165 | int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core, | ||
166 | bool enable) | ||
167 | { | ||
168 | struct pci_dev *pdev = pc->core->bus->host_pci; | ||
169 | u32 coremask, tmp; | ||
170 | int err; | ||
171 | |||
172 | err = pci_read_config_dword(pdev, BCMA_PCI_IRQMASK, &tmp); | ||
173 | if (err) | ||
174 | goto out; | ||
175 | |||
176 | coremask = BIT(core->core_index) << 8; | ||
177 | if (enable) | ||
178 | tmp |= coremask; | ||
179 | else | ||
180 | tmp &= ~coremask; | ||
181 | |||
182 | err = pci_write_config_dword(pdev, BCMA_PCI_IRQMASK, tmp); | ||
183 | |||
184 | out: | ||
185 | return err; | ||
186 | } | ||
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c index 471a04013fe0..2a526bc3342f 100644 --- a/drivers/bcma/host_pci.c +++ b/drivers/bcma/host_pci.c | |||
@@ -65,6 +65,54 @@ static void bcma_host_pci_write32(struct bcma_device *core, u16 offset, | |||
65 | iowrite32(value, core->bus->mmio + offset); | 65 | iowrite32(value, core->bus->mmio + offset); |
66 | } | 66 | } |
67 | 67 | ||
68 | #ifdef CONFIG_BCMA_BLOCKIO | ||
69 | void bcma_host_pci_block_read(struct bcma_device *core, void *buffer, | ||
70 | size_t count, u16 offset, u8 reg_width) | ||
71 | { | ||
72 | void __iomem *addr = core->bus->mmio + offset; | ||
73 | if (core->bus->mapped_core != core) | ||
74 | bcma_host_pci_switch_core(core); | ||
75 | switch (reg_width) { | ||
76 | case sizeof(u8): | ||
77 | ioread8_rep(addr, buffer, count); | ||
78 | break; | ||
79 | case sizeof(u16): | ||
80 | WARN_ON(count & 1); | ||
81 | ioread16_rep(addr, buffer, count >> 1); | ||
82 | break; | ||
83 | case sizeof(u32): | ||
84 | WARN_ON(count & 3); | ||
85 | ioread32_rep(addr, buffer, count >> 2); | ||
86 | break; | ||
87 | default: | ||
88 | WARN_ON(1); | ||
89 | } | ||
90 | } | ||
91 | |||
92 | void bcma_host_pci_block_write(struct bcma_device *core, const void *buffer, | ||
93 | size_t count, u16 offset, u8 reg_width) | ||
94 | { | ||
95 | void __iomem *addr = core->bus->mmio + offset; | ||
96 | if (core->bus->mapped_core != core) | ||
97 | bcma_host_pci_switch_core(core); | ||
98 | switch (reg_width) { | ||
99 | case sizeof(u8): | ||
100 | iowrite8_rep(addr, buffer, count); | ||
101 | break; | ||
102 | case sizeof(u16): | ||
103 | WARN_ON(count & 1); | ||
104 | iowrite16_rep(addr, buffer, count >> 1); | ||
105 | break; | ||
106 | case sizeof(u32): | ||
107 | WARN_ON(count & 3); | ||
108 | iowrite32_rep(addr, buffer, count >> 2); | ||
109 | break; | ||
110 | default: | ||
111 | WARN_ON(1); | ||
112 | } | ||
113 | } | ||
114 | #endif | ||
115 | |||
68 | static u32 bcma_host_pci_aread32(struct bcma_device *core, u16 offset) | 116 | static u32 bcma_host_pci_aread32(struct bcma_device *core, u16 offset) |
69 | { | 117 | { |
70 | if (core->bus->mapped_core != core) | 118 | if (core->bus->mapped_core != core) |
@@ -87,6 +135,10 @@ const struct bcma_host_ops bcma_host_pci_ops = { | |||
87 | .write8 = bcma_host_pci_write8, | 135 | .write8 = bcma_host_pci_write8, |
88 | .write16 = bcma_host_pci_write16, | 136 | .write16 = bcma_host_pci_write16, |
89 | .write32 = bcma_host_pci_write32, | 137 | .write32 = bcma_host_pci_write32, |
138 | #ifdef CONFIG_BCMA_BLOCKIO | ||
139 | .block_read = bcma_host_pci_block_read, | ||
140 | .block_write = bcma_host_pci_block_write, | ||
141 | #endif | ||
90 | .aread32 = bcma_host_pci_aread32, | 142 | .aread32 = bcma_host_pci_aread32, |
91 | .awrite32 = bcma_host_pci_awrite32, | 143 | .awrite32 = bcma_host_pci_awrite32, |
92 | }; | 144 | }; |
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index be52344ed19d..11e96dc6011a 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c | |||
@@ -89,6 +89,8 @@ static int bcma_register_cores(struct bcma_bus *bus) | |||
89 | switch (bus->hosttype) { | 89 | switch (bus->hosttype) { |
90 | case BCMA_HOSTTYPE_PCI: | 90 | case BCMA_HOSTTYPE_PCI: |
91 | core->dev.parent = &bus->host_pci->dev; | 91 | core->dev.parent = &bus->host_pci->dev; |
92 | core->dma_dev = &bus->host_pci->dev; | ||
93 | core->irq = bus->host_pci->irq; | ||
92 | break; | 94 | break; |
93 | case BCMA_HOSTTYPE_NONE: | 95 | case BCMA_HOSTTYPE_NONE: |
94 | case BCMA_HOSTTYPE_SDIO: | 96 | case BCMA_HOSTTYPE_SDIO: |
@@ -144,6 +146,13 @@ int bcma_bus_register(struct bcma_bus *bus) | |||
144 | bcma_core_pci_init(&bus->drv_pci); | 146 | bcma_core_pci_init(&bus->drv_pci); |
145 | } | 147 | } |
146 | 148 | ||
149 | /* Try to get SPROM */ | ||
150 | err = bcma_sprom_get(bus); | ||
151 | if (err) { | ||
152 | pr_err("Failed to get SPROM: %d\n", err); | ||
153 | return -ENOENT; | ||
154 | } | ||
155 | |||
147 | /* Register found cores */ | 156 | /* Register found cores */ |
148 | bcma_register_cores(bus); | 157 | bcma_register_cores(bus); |
149 | 158 | ||
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c new file mode 100644 index 000000000000..ffbb0e32e921 --- /dev/null +++ b/drivers/bcma/sprom.c | |||
@@ -0,0 +1,162 @@ | |||
1 | /* | ||
2 | * Broadcom specific AMBA | ||
3 | * SPROM reading | ||
4 | * | ||
5 | * Licensed under the GNU/GPL. See COPYING for details. | ||
6 | */ | ||
7 | |||
8 | #include "bcma_private.h" | ||
9 | |||
10 | #include <linux/bcma/bcma.h> | ||
11 | #include <linux/bcma/bcma_regs.h> | ||
12 | #include <linux/pci.h> | ||
13 | #include <linux/io.h> | ||
14 | #include <linux/dma-mapping.h> | ||
15 | #include <linux/slab.h> | ||
16 | |||
17 | #define SPOFF(offset) ((offset) / sizeof(u16)) | ||
18 | |||
19 | /************************************************** | ||
20 | * R/W ops. | ||
21 | **************************************************/ | ||
22 | |||
23 | static void bcma_sprom_read(struct bcma_bus *bus, u16 *sprom) | ||
24 | { | ||
25 | int i; | ||
26 | for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++) | ||
27 | sprom[i] = bcma_read16(bus->drv_cc.core, | ||
28 | BCMA_CC_SPROM + (i * 2)); | ||
29 | } | ||
30 | |||
31 | /************************************************** | ||
32 | * Validation. | ||
33 | **************************************************/ | ||
34 | |||
35 | static inline u8 bcma_crc8(u8 crc, u8 data) | ||
36 | { | ||
37 | /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */ | ||
38 | static const u8 t[] = { | ||
39 | 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, | ||
40 | 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, | ||
41 | 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, | ||
42 | 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, | ||
43 | 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, | ||
44 | 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, | ||
45 | 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, | ||
46 | 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, | ||
47 | 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, | ||
48 | 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, | ||
49 | 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, | ||
50 | 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, | ||
51 | 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, | ||
52 | 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, | ||
53 | 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, | ||
54 | 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, | ||
55 | 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, | ||
56 | 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, | ||
57 | 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, | ||
58 | 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, | ||
59 | 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, | ||
60 | 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, | ||
61 | 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, | ||
62 | 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, | ||
63 | 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, | ||
64 | 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, | ||
65 | 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, | ||
66 | 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, | ||
67 | 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, | ||
68 | 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, | ||
69 | 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, | ||
70 | 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, | ||
71 | }; | ||
72 | return t[crc ^ data]; | ||
73 | } | ||
74 | |||
75 | static u8 bcma_sprom_crc(const u16 *sprom) | ||
76 | { | ||
77 | int word; | ||
78 | u8 crc = 0xFF; | ||
79 | |||
80 | for (word = 0; word < SSB_SPROMSIZE_WORDS_R4 - 1; word++) { | ||
81 | crc = bcma_crc8(crc, sprom[word] & 0x00FF); | ||
82 | crc = bcma_crc8(crc, (sprom[word] & 0xFF00) >> 8); | ||
83 | } | ||
84 | crc = bcma_crc8(crc, sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & 0x00FF); | ||
85 | crc ^= 0xFF; | ||
86 | |||
87 | return crc; | ||
88 | } | ||
89 | |||
90 | static int bcma_sprom_check_crc(const u16 *sprom) | ||
91 | { | ||
92 | u8 crc; | ||
93 | u8 expected_crc; | ||
94 | u16 tmp; | ||
95 | |||
96 | crc = bcma_sprom_crc(sprom); | ||
97 | tmp = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_CRC; | ||
98 | expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT; | ||
99 | if (crc != expected_crc) | ||
100 | return -EPROTO; | ||
101 | |||
102 | return 0; | ||
103 | } | ||
104 | |||
105 | static int bcma_sprom_valid(const u16 *sprom) | ||
106 | { | ||
107 | u16 revision; | ||
108 | int err; | ||
109 | |||
110 | err = bcma_sprom_check_crc(sprom); | ||
111 | if (err) | ||
112 | return err; | ||
113 | |||
114 | revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_REV; | ||
115 | if (revision != 8) { | ||
116 | pr_err("Unsupported SPROM revision: %d\n", revision); | ||
117 | return -ENOENT; | ||
118 | } | ||
119 | |||
120 | return 0; | ||
121 | } | ||
122 | |||
123 | /************************************************** | ||
124 | * SPROM extraction. | ||
125 | **************************************************/ | ||
126 | |||
127 | static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom) | ||
128 | { | ||
129 | u16 v; | ||
130 | int i; | ||
131 | |||
132 | for (i = 0; i < 3; i++) { | ||
133 | v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i]; | ||
134 | *(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v); | ||
135 | } | ||
136 | } | ||
137 | |||
138 | int bcma_sprom_get(struct bcma_bus *bus) | ||
139 | { | ||
140 | u16 *sprom; | ||
141 | int err = 0; | ||
142 | |||
143 | if (!bus->drv_cc.core) | ||
144 | return -EOPNOTSUPP; | ||
145 | |||
146 | sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), | ||
147 | GFP_KERNEL); | ||
148 | if (!sprom) | ||
149 | return -ENOMEM; | ||
150 | |||
151 | bcma_sprom_read(bus, sprom); | ||
152 | |||
153 | err = bcma_sprom_valid(sprom); | ||
154 | if (err) | ||
155 | goto out; | ||
156 | |||
157 | bcma_sprom_extract_r8(bus, sprom); | ||
158 | |||
159 | out: | ||
160 | kfree(sprom); | ||
161 | return err; | ||
162 | } | ||