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-rw-r--r--arch/arm/mach-kirkwood/common.c326
1 files changed, 326 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
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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 ****************************************************************************/
32static 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
46void __init kirkwood_map_io(void)
47{
48 iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
49}
50
51
52/*****************************************************************************
53 * EHCI
54 ****************************************************************************/
55static struct orion_ehci_data kirkwood_ehci_data = {
56 .dram = &kirkwood_mbus_dram_info,
57};
58
59static u64 ehci_dmamask = 0xffffffffUL;
60
61
62/*****************************************************************************
63 * EHCI0
64 ****************************************************************************/
65static 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
77static 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
89void __init kirkwood_ehci_init(void)
90{
91 platform_device_register(&kirkwood_ehci);
92}
93
94
95/*****************************************************************************
96 * GE00
97 ****************************************************************************/
98struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
99 .t_clk = KIRKWOOD_TCLK,
100 .dram = &kirkwood_mbus_dram_info,
101};
102
103static 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
112static 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
122static 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
131static struct platform_device kirkwood_ge00 = {
132 .name = MV643XX_ETH_NAME,
133 .id = 0,
134 .num_resources = 1,
135 .resource = kirkwood_ge00_resources,
136};
137
138void __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 ****************************************************************************/
151static struct resource kirkwood_rtc_resource = {
152 .start = RTC_PHYS_BASE,
153 .end = RTC_PHYS_BASE + SZ_16 - 1,
154 .flags = IORESOURCE_MEM,
155};
156
157void __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 ****************************************************************************/
166static 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
180static 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
190void __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 ****************************************************************************/
201static 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
214static 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
226static 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
236void __init kirkwood_uart0_init(void)
237{
238 platform_device_register(&kirkwood_uart0);
239}
240
241
242/*****************************************************************************
243 * UART1
244 ****************************************************************************/
245static 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
258static 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
270static 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
280void __init kirkwood_uart1_init(void)
281{
282 platform_device_register(&kirkwood_uart1);
283}
284
285
286/*****************************************************************************
287 * Time handling
288 ****************************************************************************/
289static void kirkwood_timer_init(void)
290{
291 orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK);
292}
293
294struct sys_timer kirkwood_timer = {
295 .init = kirkwood_timer_init,
296};
297
298
299/*****************************************************************************
300 * General
301 ****************************************************************************/
302static 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
316void __init kirkwood_init(void)
317{
318 printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
319 kirkwood_id(), KIRKWOOD_TCLK);
320
321 kirkwood_setup_cpu_mbus();
322
323#ifdef CONFIG_CACHE_FEROCEON_L2
324 feroceon_l2_init(1);
325#endif
326}