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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* |
3 | * linux/arch/arm/mach-sa1100/badge4.c | |
4 | * | |
5 | * BadgePAD 4 specific initialization | |
6 | * | |
7 | * Tim Connors <connors@hpl.hp.com> | |
8 | * Christopher Hoover <ch@hpl.hp.com> | |
9 | * | |
10 | * Copyright (C) 2002 Hewlett-Packard Company | |
1da177e4 LT |
11 | */ |
12 | #include <linux/module.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/kernel.h> | |
6920b5a7 | 15 | #include <linux/platform_data/sa11x0-serial.h> |
d052d1be | 16 | #include <linux/platform_device.h> |
1da177e4 LT |
17 | #include <linux/delay.h> |
18 | #include <linux/tty.h> | |
19 | #include <linux/mtd/mtd.h> | |
20 | #include <linux/mtd/partitions.h> | |
21 | #include <linux/errno.h> | |
18775a7b BW |
22 | #include <linux/gpio.h> |
23 | #include <linux/leds.h> | |
1da177e4 | 24 | |
a09e64fb | 25 | #include <mach/hardware.h> |
1da177e4 LT |
26 | #include <asm/mach-types.h> |
27 | #include <asm/setup.h> | |
a09e64fb | 28 | #include <mach/irqs.h> |
1da177e4 LT |
29 | |
30 | #include <asm/mach/arch.h> | |
31 | #include <asm/mach/flash.h> | |
32 | #include <asm/mach/map.h> | |
33 | #include <asm/hardware/sa1111.h> | |
1da177e4 | 34 | |
a09e64fb | 35 | #include <mach/badge4.h> |
1da177e4 LT |
36 | |
37 | #include "generic.h" | |
38 | ||
39 | static struct resource sa1111_resources[] = { | |
a181099e RK |
40 | [0] = DEFINE_RES_MEM(BADGE4_SA1111_BASE, 0x2000), |
41 | [1] = DEFINE_RES_IRQ(BADGE4_IRQ_GPIO_SA1111), | |
1da177e4 LT |
42 | }; |
43 | ||
3259701c RK |
44 | static int badge4_sa1111_enable(void *data, unsigned devid) |
45 | { | |
46 | if (devid == SA1111_DEVID_USB) | |
47 | badge4_set_5V(BADGE4_5V_USB, 1); | |
48 | return 0; | |
49 | } | |
50 | ||
51 | static void badge4_sa1111_disable(void *data, unsigned devid) | |
52 | { | |
53 | if (devid == SA1111_DEVID_USB) | |
54 | badge4_set_5V(BADGE4_5V_USB, 0); | |
55 | } | |
56 | ||
19851c58 | 57 | static struct sa1111_platform_data sa1111_info = { |
07be45f5 | 58 | .disable_devs = SA1111_DEVID_PS2_MSE, |
3259701c RK |
59 | .enable = badge4_sa1111_enable, |
60 | .disable = badge4_sa1111_disable, | |
19851c58 EM |
61 | }; |
62 | ||
1da177e4 LT |
63 | static u64 sa1111_dmamask = 0xffffffffUL; |
64 | ||
65 | static struct platform_device sa1111_device = { | |
66 | .name = "sa1111", | |
67 | .id = 0, | |
68 | .dev = { | |
69 | .dma_mask = &sa1111_dmamask, | |
70 | .coherent_dma_mask = 0xffffffff, | |
19851c58 | 71 | .platform_data = &sa1111_info, |
1da177e4 LT |
72 | }, |
73 | .num_resources = ARRAY_SIZE(sa1111_resources), | |
74 | .resource = sa1111_resources, | |
75 | }; | |
76 | ||
18775a7b BW |
77 | /* LEDs */ |
78 | struct gpio_led badge4_gpio_leds[] = { | |
79 | { | |
80 | .name = "badge4:red", | |
81 | .default_trigger = "heartbeat", | |
82 | .gpio = 7, | |
83 | }, | |
84 | { | |
85 | .name = "badge4:green", | |
86 | .default_trigger = "cpu0", | |
87 | .gpio = 9, | |
88 | }, | |
89 | }; | |
90 | ||
91 | static struct gpio_led_platform_data badge4_gpio_led_info = { | |
92 | .leds = badge4_gpio_leds, | |
93 | .num_leds = ARRAY_SIZE(badge4_gpio_leds), | |
94 | }; | |
95 | ||
96 | static struct platform_device badge4_leds = { | |
97 | .name = "leds-gpio", | |
98 | .id = -1, | |
99 | .dev = { | |
100 | .platform_data = &badge4_gpio_led_info, | |
101 | } | |
102 | }; | |
103 | ||
1da177e4 LT |
104 | static struct platform_device *devices[] __initdata = { |
105 | &sa1111_device, | |
18775a7b | 106 | &badge4_leds, |
1da177e4 LT |
107 | }; |
108 | ||
109 | static int __init badge4_sa1111_init(void) | |
110 | { | |
111 | /* | |
112 | * Ensure that the memory bus request/grant signals are setup, | |
113 | * and the grant is held in its inactive state | |
114 | */ | |
115 | sa1110_mb_disable(); | |
116 | ||
117 | /* | |
118 | * Probe for SA1111. | |
119 | */ | |
120 | return platform_add_devices(devices, ARRAY_SIZE(devices)); | |
121 | } | |
122 | ||
123 | ||
124 | /* | |
125 | * 1 x Intel 28F320C3 Advanced+ Boot Block Flash (32 Mi bit) | |
126 | * Eight 4 KiW Parameter Bottom Blocks (64 KiB) | |
127 | * Sixty-three 32 KiW Main Blocks (4032 Ki b) | |
128 | * | |
129 | * <or> | |
130 | * | |
131 | * 1 x Intel 28F640C3 Advanced+ Boot Block Flash (64 Mi bit) | |
132 | * Eight 4 KiW Parameter Bottom Blocks (64 KiB) | |
133 | * One-hundred-twenty-seven 32 KiW Main Blocks (8128 Ki b) | |
134 | */ | |
135 | static struct mtd_partition badge4_partitions[] = { | |
bda03086 KE |
136 | { |
137 | .name = "BLOB boot loader", | |
138 | .offset = 0, | |
139 | .size = 0x0000A000 | |
140 | }, { | |
141 | .name = "params", | |
142 | .offset = MTDPART_OFS_APPEND, | |
143 | .size = 0x00006000 | |
144 | }, { | |
145 | .name = "root", | |
146 | .offset = MTDPART_OFS_APPEND, | |
147 | .size = MTDPART_SIZ_FULL | |
148 | } | |
1da177e4 LT |
149 | }; |
150 | ||
151 | static struct flash_platform_data badge4_flash_data = { | |
152 | .map_name = "cfi_probe", | |
153 | .parts = badge4_partitions, | |
154 | .nr_parts = ARRAY_SIZE(badge4_partitions), | |
155 | }; | |
156 | ||
a181099e RK |
157 | static struct resource badge4_flash_resource = |
158 | DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_64M); | |
1da177e4 LT |
159 | |
160 | static int five_v_on __initdata = 0; | |
161 | ||
162 | static int __init five_v_on_setup(char *ignore) | |
163 | { | |
bda03086 | 164 | five_v_on = 1; |
1da177e4 LT |
165 | return 1; |
166 | } | |
167 | __setup("five_v_on", five_v_on_setup); | |
168 | ||
169 | ||
170 | static int __init badge4_init(void) | |
171 | { | |
172 | int ret; | |
173 | ||
174 | if (!machine_is_badge4()) | |
175 | return -ENODEV; | |
176 | ||
177 | /* LCD */ | |
178 | GPCR = (BADGE4_GPIO_LGP2 | BADGE4_GPIO_LGP3 | | |
179 | BADGE4_GPIO_LGP4 | BADGE4_GPIO_LGP5 | | |
180 | BADGE4_GPIO_LGP6 | BADGE4_GPIO_LGP7 | | |
181 | BADGE4_GPIO_LGP8 | BADGE4_GPIO_LGP9 | | |
182 | BADGE4_GPIO_GPA_VID | BADGE4_GPIO_GPB_VID | | |
183 | BADGE4_GPIO_GPC_VID); | |
184 | GPDR &= ~BADGE4_GPIO_INT_VID; | |
185 | GPDR |= (BADGE4_GPIO_LGP2 | BADGE4_GPIO_LGP3 | | |
186 | BADGE4_GPIO_LGP4 | BADGE4_GPIO_LGP5 | | |
187 | BADGE4_GPIO_LGP6 | BADGE4_GPIO_LGP7 | | |
188 | BADGE4_GPIO_LGP8 | BADGE4_GPIO_LGP9 | | |
189 | BADGE4_GPIO_GPA_VID | BADGE4_GPIO_GPB_VID | | |
190 | BADGE4_GPIO_GPC_VID); | |
191 | ||
192 | /* SDRAM SPD i2c */ | |
193 | GPCR = (BADGE4_GPIO_SDSDA | BADGE4_GPIO_SDSCL); | |
194 | GPDR |= (BADGE4_GPIO_SDSDA | BADGE4_GPIO_SDSCL); | |
195 | ||
196 | /* uart */ | |
197 | GPCR = (BADGE4_GPIO_UART_HS1 | BADGE4_GPIO_UART_HS2); | |
198 | GPDR |= (BADGE4_GPIO_UART_HS1 | BADGE4_GPIO_UART_HS2); | |
199 | ||
200 | /* CPLD muxsel0 input for mux/adc chip select */ | |
201 | GPCR = BADGE4_GPIO_MUXSEL0; | |
202 | GPDR |= BADGE4_GPIO_MUXSEL0; | |
203 | ||
204 | /* test points: J5, J6 as inputs, J7 outputs */ | |
205 | GPDR &= ~(BADGE4_GPIO_TESTPT_J5 | BADGE4_GPIO_TESTPT_J6); | |
206 | GPCR = BADGE4_GPIO_TESTPT_J7; | |
207 | GPDR |= BADGE4_GPIO_TESTPT_J7; | |
208 | ||
bda03086 KE |
209 | /* 5V supply rail. */ |
210 | GPCR = BADGE4_GPIO_PCMEN5V; /* initially off */ | |
211 | GPDR |= BADGE4_GPIO_PCMEN5V; | |
1da177e4 LT |
212 | |
213 | /* CPLD sdram type inputs; set up by blob */ | |
214 | //GPDR |= (BADGE4_GPIO_SDTYP1 | BADGE4_GPIO_SDTYP0); | |
215 | printk(KERN_DEBUG __FILE__ ": SDRAM CPLD typ1=%d typ0=%d\n", | |
bda03086 KE |
216 | !!(GPLR & BADGE4_GPIO_SDTYP1), |
217 | !!(GPLR & BADGE4_GPIO_SDTYP0)); | |
1da177e4 LT |
218 | |
219 | /* SA1111 reset pin; set up by blob */ | |
220 | //GPSR = BADGE4_GPIO_SA1111_NRST; | |
221 | //GPDR |= BADGE4_GPIO_SA1111_NRST; | |
222 | ||
223 | ||
224 | /* power management cruft */ | |
225 | PGSR = 0; | |
226 | PWER = 0; | |
227 | PCFR = 0; | |
228 | PSDR = 0; | |
229 | ||
230 | PWER |= PWER_GPIO26; /* wake up on an edge from TESTPT_J5 */ | |
231 | PWER |= PWER_RTC; /* wake up if rtc fires */ | |
232 | ||
233 | /* drive sa1111_nrst during sleep */ | |
234 | PGSR |= BADGE4_GPIO_SA1111_NRST; | |
235 | /* drive CPLD as is during sleep */ | |
236 | PGSR |= (GPLR & (BADGE4_GPIO_SDTYP0|BADGE4_GPIO_SDTYP1)); | |
237 | ||
238 | ||
239 | /* Now bring up the SA-1111. */ | |
240 | ret = badge4_sa1111_init(); | |
241 | if (ret < 0) | |
242 | printk(KERN_ERR | |
bda03086 KE |
243 | "%s: SA-1111 initialization failed (%d)\n", |
244 | __func__, ret); | |
1da177e4 LT |
245 | |
246 | ||
247 | /* maybe turn on 5v0 from the start */ | |
248 | badge4_set_5V(BADGE4_5V_INITIALLY, five_v_on); | |
249 | ||
7a5b4e16 | 250 | sa11x0_register_mtd(&badge4_flash_data, &badge4_flash_resource, 1); |
1da177e4 LT |
251 | |
252 | return 0; | |
253 | } | |
254 | ||
255 | arch_initcall(badge4_init); | |
256 | ||
257 | ||
258 | static unsigned badge4_5V_bitmap = 0; | |
259 | ||
260 | void badge4_set_5V(unsigned subsystem, int on) | |
261 | { | |
262 | unsigned long flags; | |
263 | unsigned old_5V_bitmap; | |
264 | ||
265 | local_irq_save(flags); | |
266 | ||
267 | old_5V_bitmap = badge4_5V_bitmap; | |
268 | ||
269 | if (on) { | |
270 | badge4_5V_bitmap |= subsystem; | |
271 | } else { | |
272 | badge4_5V_bitmap &= ~subsystem; | |
273 | } | |
274 | ||
275 | /* detect on->off and off->on transitions */ | |
276 | if ((!old_5V_bitmap) && (badge4_5V_bitmap)) { | |
277 | /* was off, now on */ | |
8e86f427 | 278 | printk(KERN_INFO "%s: enabling 5V supply rail\n", __func__); |
1da177e4 LT |
279 | GPSR = BADGE4_GPIO_PCMEN5V; |
280 | } else if ((old_5V_bitmap) && (!badge4_5V_bitmap)) { | |
281 | /* was on, now off */ | |
8e86f427 | 282 | printk(KERN_INFO "%s: disabling 5V supply rail\n", __func__); |
1da177e4 LT |
283 | GPCR = BADGE4_GPIO_PCMEN5V; |
284 | } | |
285 | ||
286 | local_irq_restore(flags); | |
287 | } | |
288 | EXPORT_SYMBOL(badge4_set_5V); | |
289 | ||
290 | ||
291 | static struct map_desc badge4_io_desc[] __initdata = { | |
bda03086 | 292 | { /* SRAM bank 1 */ |
92519d82 DS |
293 | .virtual = 0xf1000000, |
294 | .pfn = __phys_to_pfn(0x08000000), | |
295 | .length = 0x00100000, | |
296 | .type = MT_DEVICE | |
297 | }, { /* SRAM bank 2 */ | |
298 | .virtual = 0xf2000000, | |
299 | .pfn = __phys_to_pfn(0x10000000), | |
300 | .length = 0x00100000, | |
301 | .type = MT_DEVICE | |
92519d82 | 302 | } |
1da177e4 LT |
303 | }; |
304 | ||
305 | static void | |
306 | badge4_uart_pm(struct uart_port *port, u_int state, u_int oldstate) | |
307 | { | |
308 | if (!state) { | |
309 | Ser1SDCR0 |= SDCR0_UART; | |
310 | } | |
311 | } | |
312 | ||
313 | static struct sa1100_port_fns badge4_port_fns __initdata = { | |
314 | //.get_mctrl = badge4_get_mctrl, | |
315 | //.set_mctrl = badge4_set_mctrl, | |
316 | .pm = badge4_uart_pm, | |
317 | }; | |
318 | ||
319 | static void __init badge4_map_io(void) | |
320 | { | |
321 | sa1100_map_io(); | |
322 | iotable_init(badge4_io_desc, ARRAY_SIZE(badge4_io_desc)); | |
323 | ||
324 | sa1100_register_uart_fns(&badge4_port_fns); | |
325 | sa1100_register_uart(0, 3); | |
326 | sa1100_register_uart(1, 1); | |
327 | } | |
328 | ||
329 | MACHINE_START(BADGE4, "Hewlett-Packard Laboratories BadgePAD 4") | |
17f4425d | 330 | .atag_offset = 0x100, |
e9dea0c6 | 331 | .map_io = badge4_map_io, |
f314f33b | 332 | .nr_irqs = SA1100_NR_IRQS, |
e9dea0c6 | 333 | .init_irq = sa1100_init_irq, |
7fea1ba5 | 334 | .init_late = sa11x0_init_late, |
6bb27d73 | 335 | .init_time = sa1100_timer_init, |
e9107ab6 NP |
336 | #ifdef CONFIG_SA1111 |
337 | .dma_zone_size = SZ_1M, | |
338 | #endif | |
d9ca5839 | 339 | .restart = sa11x0_restart, |
1da177e4 | 340 | MACHINE_END |