diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 19:06:58 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 19:06:58 -0400 |
commit | 85082fd7cbe3173198aac0eb5e85ab1edcc6352c (patch) | |
tree | edbc09b7945994f78668d218fa02e991c3b3b365 /arch/arm/mach-kirkwood/common.c | |
parent | 666484f0250db2e016948d63b3ef33e202e3b8d0 (diff) | |
parent | 53ffe3b440aa85af6fc4eda09b2d44bcdd312d4d (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (241 commits)
[ARM] 5171/1: ep93xx: fix compilation of modules using clocks
[ARM] 5133/2: at91sam9g20 defconfig file
[ARM] 5130/4: Support for the at91sam9g20
[ARM] 5160/1: IOP3XX: gpio/gpiolib support
[ARM] at91: Fix NAND FLASH timings for at91sam9x evaluation kits.
[ARM] 5084/1: zylonite: Register AC97 device
[ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model
[ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers
[ARM] 5147/1: pxaficp_ir: drop pxa_gpio_mode calls, as pin setting
[ARM] 5145/1: PXA2xx: provide api to control IrDA pins state
[ARM] 5144/1: pxaficp_ir: cleanup includes
[ARM] pxa: remove pxa_set_cken()
[ARM] pxa: allow clk aliases
[ARM] Feroceon: don't disable BPU on boot
[ARM] Orion: LED support for HP mv2120
[ARM] Orion: add RD88F5181L-FXO support
[ARM] Orion: add RD88F5181L-GE support
[ARM] Orion: add Netgear WNR854T support
[ARM] s3c2410_defconfig: update for current build
[ARM] Acer n30: Minor style and indentation fixes.
...
Diffstat (limited to 'arch/arm/mach-kirkwood/common.c')
-rw-r--r-- | arch/arm/mach-kirkwood/common.c | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c new file mode 100644 index 000000000000..5938a3b33cdc --- /dev/null +++ b/arch/arm/mach-kirkwood/common.c | |||
@@ -0,0 +1,331 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-kirkwood/common.c | ||
3 | * | ||
4 | * Core functions for Marvell Kirkwood SoCs | ||
5 | * | ||
6 | * This file is licensed under the terms of the GNU General Public | ||
7 | * License version 2. This program is licensed "as is" without any | ||
8 | * warranty of any kind, whether express or implied. | ||
9 | */ | ||
10 | |||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/init.h> | ||
13 | #include <linux/platform_device.h> | ||
14 | #include <linux/serial_8250.h> | ||
15 | #include <linux/mbus.h> | ||
16 | #include <linux/mv643xx_eth.h> | ||
17 | #include <linux/ata_platform.h> | ||
18 | #include <asm/page.h> | ||
19 | #include <asm/timex.h> | ||
20 | #include <asm/mach/map.h> | ||
21 | #include <asm/mach/time.h> | ||
22 | #include <asm/arch/kirkwood.h> | ||
23 | #include <asm/plat-orion/cache-feroceon-l2.h> | ||
24 | #include <asm/plat-orion/ehci-orion.h> | ||
25 | #include <asm/plat-orion/orion_nand.h> | ||
26 | #include <asm/plat-orion/time.h> | ||
27 | #include "common.h" | ||
28 | |||
29 | /***************************************************************************** | ||
30 | * I/O Address Mapping | ||
31 | ****************************************************************************/ | ||
32 | static struct map_desc kirkwood_io_desc[] __initdata = { | ||
33 | { | ||
34 | .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE, | ||
35 | .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE), | ||
36 | .length = KIRKWOOD_PCIE_IO_SIZE, | ||
37 | .type = MT_DEVICE, | ||
38 | }, { | ||
39 | .virtual = KIRKWOOD_REGS_VIRT_BASE, | ||
40 | .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE), | ||
41 | .length = KIRKWOOD_REGS_SIZE, | ||
42 | .type = MT_DEVICE, | ||
43 | }, | ||
44 | }; | ||
45 | |||
46 | void __init kirkwood_map_io(void) | ||
47 | { | ||
48 | iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc)); | ||
49 | } | ||
50 | |||
51 | |||
52 | /***************************************************************************** | ||
53 | * EHCI | ||
54 | ****************************************************************************/ | ||
55 | static struct orion_ehci_data kirkwood_ehci_data = { | ||
56 | .dram = &kirkwood_mbus_dram_info, | ||
57 | }; | ||
58 | |||
59 | static u64 ehci_dmamask = 0xffffffffUL; | ||
60 | |||
61 | |||
62 | /***************************************************************************** | ||
63 | * EHCI0 | ||
64 | ****************************************************************************/ | ||
65 | static struct resource kirkwood_ehci_resources[] = { | ||
66 | { | ||
67 | .start = USB_PHYS_BASE, | ||
68 | .end = USB_PHYS_BASE + 0x0fff, | ||
69 | .flags = IORESOURCE_MEM, | ||
70 | }, { | ||
71 | .start = IRQ_KIRKWOOD_USB, | ||
72 | .end = IRQ_KIRKWOOD_USB, | ||
73 | .flags = IORESOURCE_IRQ, | ||
74 | }, | ||
75 | }; | ||
76 | |||
77 | static struct platform_device kirkwood_ehci = { | ||
78 | .name = "orion-ehci", | ||
79 | .id = 0, | ||
80 | .dev = { | ||
81 | .dma_mask = &ehci_dmamask, | ||
82 | .coherent_dma_mask = 0xffffffff, | ||
83 | .platform_data = &kirkwood_ehci_data, | ||
84 | }, | ||
85 | .resource = kirkwood_ehci_resources, | ||
86 | .num_resources = ARRAY_SIZE(kirkwood_ehci_resources), | ||
87 | }; | ||
88 | |||
89 | void __init kirkwood_ehci_init(void) | ||
90 | { | ||
91 | platform_device_register(&kirkwood_ehci); | ||
92 | } | ||
93 | |||
94 | |||
95 | /***************************************************************************** | ||
96 | * GE00 | ||
97 | ****************************************************************************/ | ||
98 | struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = { | ||
99 | .t_clk = KIRKWOOD_TCLK, | ||
100 | .dram = &kirkwood_mbus_dram_info, | ||
101 | }; | ||
102 | |||
103 | static struct resource kirkwood_ge00_shared_resources[] = { | ||
104 | { | ||
105 | .name = "ge00 base", | ||
106 | .start = GE00_PHYS_BASE + 0x2000, | ||
107 | .end = GE00_PHYS_BASE + 0x3fff, | ||
108 | .flags = IORESOURCE_MEM, | ||
109 | }, | ||
110 | }; | ||
111 | |||
112 | static struct platform_device kirkwood_ge00_shared = { | ||
113 | .name = MV643XX_ETH_SHARED_NAME, | ||
114 | .id = 0, | ||
115 | .dev = { | ||
116 | .platform_data = &kirkwood_ge00_shared_data, | ||
117 | }, | ||
118 | .num_resources = 1, | ||
119 | .resource = kirkwood_ge00_shared_resources, | ||
120 | }; | ||
121 | |||
122 | static struct resource kirkwood_ge00_resources[] = { | ||
123 | { | ||
124 | .name = "ge00 irq", | ||
125 | .start = IRQ_KIRKWOOD_GE00_SUM, | ||
126 | .end = IRQ_KIRKWOOD_GE00_SUM, | ||
127 | .flags = IORESOURCE_IRQ, | ||
128 | }, | ||
129 | }; | ||
130 | |||
131 | static struct platform_device kirkwood_ge00 = { | ||
132 | .name = MV643XX_ETH_NAME, | ||
133 | .id = 0, | ||
134 | .num_resources = 1, | ||
135 | .resource = kirkwood_ge00_resources, | ||
136 | }; | ||
137 | |||
138 | void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data) | ||
139 | { | ||
140 | eth_data->shared = &kirkwood_ge00_shared; | ||
141 | kirkwood_ge00.dev.platform_data = eth_data; | ||
142 | |||
143 | platform_device_register(&kirkwood_ge00_shared); | ||
144 | platform_device_register(&kirkwood_ge00); | ||
145 | } | ||
146 | |||
147 | |||
148 | /***************************************************************************** | ||
149 | * SoC RTC | ||
150 | ****************************************************************************/ | ||
151 | static struct resource kirkwood_rtc_resource = { | ||
152 | .start = RTC_PHYS_BASE, | ||
153 | .end = RTC_PHYS_BASE + SZ_16 - 1, | ||
154 | .flags = IORESOURCE_MEM, | ||
155 | }; | ||
156 | |||
157 | void __init kirkwood_rtc_init(void) | ||
158 | { | ||
159 | platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1); | ||
160 | } | ||
161 | |||
162 | |||
163 | /***************************************************************************** | ||
164 | * SATA | ||
165 | ****************************************************************************/ | ||
166 | static struct resource kirkwood_sata_resources[] = { | ||
167 | { | ||
168 | .name = "sata base", | ||
169 | .start = SATA_PHYS_BASE, | ||
170 | .end = SATA_PHYS_BASE + 0x5000 - 1, | ||
171 | .flags = IORESOURCE_MEM, | ||
172 | }, { | ||
173 | .name = "sata irq", | ||
174 | .start = IRQ_KIRKWOOD_SATA, | ||
175 | .end = IRQ_KIRKWOOD_SATA, | ||
176 | .flags = IORESOURCE_IRQ, | ||
177 | }, | ||
178 | }; | ||
179 | |||
180 | static struct platform_device kirkwood_sata = { | ||
181 | .name = "sata_mv", | ||
182 | .id = 0, | ||
183 | .dev = { | ||
184 | .coherent_dma_mask = 0xffffffff, | ||
185 | }, | ||
186 | .num_resources = ARRAY_SIZE(kirkwood_sata_resources), | ||
187 | .resource = kirkwood_sata_resources, | ||
188 | }; | ||
189 | |||
190 | void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data) | ||
191 | { | ||
192 | sata_data->dram = &kirkwood_mbus_dram_info; | ||
193 | kirkwood_sata.dev.platform_data = sata_data; | ||
194 | platform_device_register(&kirkwood_sata); | ||
195 | } | ||
196 | |||
197 | |||
198 | /***************************************************************************** | ||
199 | * UART0 | ||
200 | ****************************************************************************/ | ||
201 | static struct plat_serial8250_port kirkwood_uart0_data[] = { | ||
202 | { | ||
203 | .mapbase = UART0_PHYS_BASE, | ||
204 | .membase = (char *)UART0_VIRT_BASE, | ||
205 | .irq = IRQ_KIRKWOOD_UART_0, | ||
206 | .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, | ||
207 | .iotype = UPIO_MEM, | ||
208 | .regshift = 2, | ||
209 | .uartclk = KIRKWOOD_TCLK, | ||
210 | }, { | ||
211 | }, | ||
212 | }; | ||
213 | |||
214 | static struct resource kirkwood_uart0_resources[] = { | ||
215 | { | ||
216 | .start = UART0_PHYS_BASE, | ||
217 | .end = UART0_PHYS_BASE + 0xff, | ||
218 | .flags = IORESOURCE_MEM, | ||
219 | }, { | ||
220 | .start = IRQ_KIRKWOOD_UART_0, | ||
221 | .end = IRQ_KIRKWOOD_UART_0, | ||
222 | .flags = IORESOURCE_IRQ, | ||
223 | }, | ||
224 | }; | ||
225 | |||
226 | static struct platform_device kirkwood_uart0 = { | ||
227 | .name = "serial8250", | ||
228 | .id = 0, | ||
229 | .dev = { | ||
230 | .platform_data = kirkwood_uart0_data, | ||
231 | }, | ||
232 | .resource = kirkwood_uart0_resources, | ||
233 | .num_resources = ARRAY_SIZE(kirkwood_uart0_resources), | ||
234 | }; | ||
235 | |||
236 | void __init kirkwood_uart0_init(void) | ||
237 | { | ||
238 | platform_device_register(&kirkwood_uart0); | ||
239 | } | ||
240 | |||
241 | |||
242 | /***************************************************************************** | ||
243 | * UART1 | ||
244 | ****************************************************************************/ | ||
245 | static struct plat_serial8250_port kirkwood_uart1_data[] = { | ||
246 | { | ||
247 | .mapbase = UART1_PHYS_BASE, | ||
248 | .membase = (char *)UART1_VIRT_BASE, | ||
249 | .irq = IRQ_KIRKWOOD_UART_1, | ||
250 | .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, | ||
251 | .iotype = UPIO_MEM, | ||
252 | .regshift = 2, | ||
253 | .uartclk = KIRKWOOD_TCLK, | ||
254 | }, { | ||
255 | }, | ||
256 | }; | ||
257 | |||
258 | static struct resource kirkwood_uart1_resources[] = { | ||
259 | { | ||
260 | .start = UART1_PHYS_BASE, | ||
261 | .end = UART1_PHYS_BASE + 0xff, | ||
262 | .flags = IORESOURCE_MEM, | ||
263 | }, { | ||
264 | .start = IRQ_KIRKWOOD_UART_1, | ||
265 | .end = IRQ_KIRKWOOD_UART_1, | ||
266 | .flags = IORESOURCE_IRQ, | ||
267 | }, | ||
268 | }; | ||
269 | |||
270 | static struct platform_device kirkwood_uart1 = { | ||
271 | .name = "serial8250", | ||
272 | .id = 1, | ||
273 | .dev = { | ||
274 | .platform_data = kirkwood_uart1_data, | ||
275 | }, | ||
276 | .resource = kirkwood_uart1_resources, | ||
277 | .num_resources = ARRAY_SIZE(kirkwood_uart1_resources), | ||
278 | }; | ||
279 | |||
280 | void __init kirkwood_uart1_init(void) | ||
281 | { | ||
282 | platform_device_register(&kirkwood_uart1); | ||
283 | } | ||
284 | |||
285 | |||
286 | /***************************************************************************** | ||
287 | * Time handling | ||
288 | ****************************************************************************/ | ||
289 | static void kirkwood_timer_init(void) | ||
290 | { | ||
291 | orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK); | ||
292 | } | ||
293 | |||
294 | struct sys_timer kirkwood_timer = { | ||
295 | .init = kirkwood_timer_init, | ||
296 | }; | ||
297 | |||
298 | |||
299 | /***************************************************************************** | ||
300 | * General | ||
301 | ****************************************************************************/ | ||
302 | static char * __init kirkwood_id(void) | ||
303 | { | ||
304 | switch (readl(DEVICE_ID) & 0x3) { | ||
305 | case 0: | ||
306 | return "88F6180"; | ||
307 | case 1: | ||
308 | return "88F6192"; | ||
309 | case 2: | ||
310 | return "88F6281"; | ||
311 | } | ||
312 | |||
313 | return "unknown 88F6000 variant"; | ||
314 | } | ||
315 | |||
316 | static int __init is_l2_writethrough(void) | ||
317 | { | ||
318 | return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH); | ||
319 | } | ||
320 | |||
321 | void __init kirkwood_init(void) | ||
322 | { | ||
323 | printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n", | ||
324 | kirkwood_id(), KIRKWOOD_TCLK); | ||
325 | |||
326 | kirkwood_setup_cpu_mbus(); | ||
327 | |||
328 | #ifdef CONFIG_CACHE_FEROCEON_L2 | ||
329 | feroceon_l2_init(is_l2_writethrough()); | ||
330 | #endif | ||
331 | } | ||