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  • Committer: Bazaar Package Importer
  • Author(s): Ben Hutchings, Ben Hutchings, Aurelien Jarno
  • Date: 2011-06-07 12:14:05 UTC
  • mfrom: (43.1.9 sid)
  • Revision ID: james.westby@ubuntu.com-20110607121405-i3h1rd7nrnd2b73h
Tags: 2.6.39-2
http://bugs.debian.org/627492
http://bugs.debian.org/596626
http://bugs.debian.org/628932
http://bugs.debian.org/628191
http://bugs.debian.org/627837
http://bugs.debian.org/622997
http://bugs.debian.org/622745
http://bugs.debian.org/619827
http://bugs.debian.org/629401
[ Ben Hutchings ]
* [x86] Enable BACKLIGHT_APPLE, replacing BACKLIGHT_MBP_NVIDIA
  (Closes: #627492)
* cgroups: Disable memory resource controller by default. Allow it
  to be enabled using kernel parameter 'cgroup_enable=memory'.
* rt2800usb: Enable support for more USB devices including
  Linksys WUSB600N (Closes: #596626) (this change was accidentally
  omitted from 2.6.39-1)
* [x86] Remove Celeron from list of processors supporting PAE. Most
  'Celeron M' models do not.
* Update debconf template translations:
  - Swedish (Martin Bagge) (Closes: #628932)
  - French (David Prévot) (Closes: #628191)
* aufs: Update for 2.6.39 (Closes: #627837)
* Add stable 2.6.39.1, including:
  - ext4: dont set PageUptodate in ext4_end_bio()
  - pata_cmd64x: fix boot crash on parisc (Closes: #622997, #622745)
  - ext3: Fix fs corruption when make_indexed_dir() fails
  - netfilter: nf_ct_sip: validate Content-Length in TCP SIP messages
  - sctp: fix race between sctp_bind_addr_free() and
    sctp_bind_addr_conflict()
  - sctp: fix memory leak of the ASCONF queue when free asoc
  - md/bitmap: fix saving of events_cleared and other state
  - cdc_acm: Fix oops when Droids MuIn LCD is connected
  - cx88: Fix conversion from BKL to fine-grained locks (Closes: #619827)
  - keys: Set cred->user_ns in key_replace_session_keyring (CVE-2011-2184)
  - tmpfs: fix race between truncate and writepage
  - nfs41: Correct offset for LAYOUTCOMMIT
  - xen/mmu: fix a race window causing leave_mm BUG()
  - ext4: fix possible use-after-free in ext4_remove_li_request()
  For the complete list of changes, see:
   http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.1
* Bump ABI to 2
* netfilter: Enable IP_SET, IP_SET_BITMAP_IP, IP_SET_BITMAP_IPMAC,
  IP_SET_BITMAP_PORT, IP_SET_HASH_IP, IP_SET_HASH_IPPORT,
  IP_SET_HASH_IPPORTIP, IP_SET_HASH_IPPORTNET, IP_SET_HASH_NET,
  IP_SET_HASH_NETPORT, IP_SET_LIST_SET, NETFILTER_XT_SET as modules
  (Closes: #629401)

[ Aurelien Jarno ]
* [mipsel/loongson-2f] Disable_SCSI_LPFC to workaround GCC ICE.

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Lines of Context:
arch/unicore32/kernel/puv3-core.c
 
1
/*
 
2
 *  linux/arch/unicore32/kernel/puv3-core.c
 
3
 *
 
4
 * Code specific to PKUnity SoC and UniCore ISA
 
5
 *
 
6
 *      Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
 
7
 *      Copyright (C) 2001-2010 Guan Xuetao
 
8
 *
 
9
 * This program is free software; you can redistribute it and/or modify
 
10
 * it under the terms of the GNU General Public License version 2 as
 
11
 * published by the Free Software Foundation.
 
12
 */
 
13
 
 
14
#include <linux/init.h>
 
15
#include <linux/device.h>
 
16
#include <linux/sysdev.h>
 
17
#include <linux/amba/bus.h>
 
18
#include <linux/platform_device.h>
 
19
#include <linux/io.h>
 
20
#include <linux/cnt32_to_63.h>
 
21
#include <linux/usb/musb.h>
 
22
 
 
23
#include <asm/irq.h>
 
24
#include <mach/hardware.h>
 
25
#include <mach/pm.h>
 
26
 
 
27
/*
 
28
 * This is the PKUnity sched_clock implementation.  This has
 
29
 * a resolution of 271ns, and a maximum value of 32025597s (370 days).
 
30
 *
 
31
 * The return value is guaranteed to be monotonic in that range as
 
32
 * long as there is always less than 582 seconds between successive
 
33
 * calls to this function.
 
34
 *
 
35
 *  ( * 1E9 / CLOCK_TICK_RATE ) -> about 2235/32
 
36
 */
 
37
unsigned long long sched_clock(void)
 
38
{
 
39
        unsigned long long v = cnt32_to_63(readl(OST_OSCR));
 
40
 
 
41
        /* original conservative method, but overflow frequently
 
42
         * v *= NSEC_PER_SEC >> 12;
 
43
         * do_div(v, CLOCK_TICK_RATE >> 12);
 
44
         */
 
45
        v = ((v & 0x7fffffffffffffffULL) * 2235) >> 5;
 
46
 
 
47
        return v;
 
48
}
 
49
 
 
50
static struct resource puv3_usb_resources[] = {
 
51
        /* order is significant! */
 
52
        {
 
53
                .start          = io_v2p(PKUNITY_USB_BASE),
 
54
                .end            = io_v2p(PKUNITY_USB_BASE) + 0x3ff,
 
55
                .flags          = IORESOURCE_MEM,
 
56
        }, {
 
57
                .start          = IRQ_USB,
 
58
                .flags          = IORESOURCE_IRQ,
 
59
        }, {
 
60
                .start          = IRQ_USB,
 
61
                .flags          = IORESOURCE_IRQ,
 
62
        },
 
63
};
 
64
 
 
65
static struct musb_hdrc_config  puv3_usb_config[] = {
 
66
        {
 
67
                .num_eps = 16,
 
68
                .multipoint = 1,
 
69
#ifdef CONFIG_USB_INVENTRA_DMA
 
70
                .dma = 1,
 
71
                .dma_channels = 8,
 
72
#endif
 
73
        },
 
74
};
 
75
 
 
76
static struct musb_hdrc_platform_data puv3_usb_plat = {
 
77
        .mode           = MUSB_HOST,
 
78
        .min_power      = 100,
 
79
        .clock          = 0,
 
80
        .config         = puv3_usb_config,
 
81
};
 
82
 
 
83
static struct resource puv3_mmc_resources[] = {
 
84
        [0] = {
 
85
                .start  = io_v2p(PKUNITY_SDC_BASE),
 
86
                .end    = io_v2p(PKUNITY_SDC_BASE) + 0xfff,
 
87
                .flags  = IORESOURCE_MEM,
 
88
        },
 
89
        [1] = {
 
90
                .start  = IRQ_SDC,
 
91
                .end    = IRQ_SDC,
 
92
                .flags  = IORESOURCE_IRQ,
 
93
        },
 
94
};
 
95
 
 
96
static struct resource puv3_unigfx_resources[] = {
 
97
        [0] = {
 
98
                .start  = io_v2p(PKUNITY_UNIGFX_BASE),
 
99
                .end    = io_v2p(PKUNITY_UNIGFX_BASE) + 0xfff,
 
100
                .flags  = IORESOURCE_MEM,
 
101
        },
 
102
};
 
103
 
 
104
static struct resource puv3_rtc_resources[] = {
 
105
        [0] = {
 
106
                .start = io_v2p(PKUNITY_RTC_BASE),
 
107
                .end   = io_v2p(PKUNITY_RTC_BASE) + 0xff,
 
108
                .flags = IORESOURCE_MEM,
 
109
        },
 
110
        [1] = {
 
111
                .start = IRQ_RTCAlarm,
 
112
                .end   = IRQ_RTCAlarm,
 
113
                .flags = IORESOURCE_IRQ,
 
114
        },
 
115
        [2] = {
 
116
                .start = IRQ_RTC,
 
117
                .end   = IRQ_RTC,
 
118
                .flags = IORESOURCE_IRQ
 
119
        }
 
120
};
 
121
 
 
122
static struct resource puv3_pwm_resources[] = {
 
123
        [0] = {
 
124
                .start  = io_v2p(PKUNITY_OST_BASE) + 0x80,
 
125
                .end    = io_v2p(PKUNITY_OST_BASE) + 0xff,
 
126
                .flags  = IORESOURCE_MEM,
 
127
        },
 
128
};
 
129
 
 
130
static struct resource puv3_uart0_resources[] = {
 
131
        [0] = {
 
132
                .start = io_v2p(PKUNITY_UART0_BASE),
 
133
                .end   = io_v2p(PKUNITY_UART0_BASE) + 0xff,
 
134
                .flags = IORESOURCE_MEM,
 
135
        },
 
136
        [1] = {
 
137
                .start = IRQ_UART0,
 
138
                .end   = IRQ_UART0,
 
139
                .flags = IORESOURCE_IRQ
 
140
        }
 
141
};
 
142
 
 
143
static struct resource puv3_uart1_resources[] = {
 
144
        [0] = {
 
145
                .start = io_v2p(PKUNITY_UART1_BASE),
 
146
                .end   = io_v2p(PKUNITY_UART1_BASE) + 0xff,
 
147
                .flags = IORESOURCE_MEM,
 
148
        },
 
149
        [1] = {
 
150
                .start = IRQ_UART1,
 
151
                .end   = IRQ_UART1,
 
152
                .flags = IORESOURCE_IRQ
 
153
        }
 
154
};
 
155
 
 
156
static struct resource puv3_umal_resources[] = {
 
157
        [0] = {
 
158
                .start = io_v2p(PKUNITY_UMAL_BASE),
 
159
                .end   = io_v2p(PKUNITY_UMAL_BASE) + 0x1fff,
 
160
                .flags = IORESOURCE_MEM,
 
161
        },
 
162
        [1] = {
 
163
                .start = IRQ_UMAL,
 
164
                .end   = IRQ_UMAL,
 
165
                .flags = IORESOURCE_IRQ
 
166
        }
 
167
};
 
168
 
 
169
#ifdef CONFIG_PUV3_PM
 
170
 
 
171
#define SAVE(x)         sleep_save[SLEEP_SAVE_##x] = x
 
172
#define RESTORE(x)      x = sleep_save[SLEEP_SAVE_##x]
 
173
 
 
174
/*
 
175
 * List of global PXA peripheral registers to preserve.
 
176
 * More ones like CP and general purpose register values are preserved
 
177
 * with the stack pointer in sleep.S.
 
178
 */
 
179
enum {
 
180
        SLEEP_SAVE_PM_PLLDDRCFG,
 
181
        SLEEP_SAVE_COUNT
 
182
};
 
183
 
 
184
 
 
185
static void puv3_cpu_pm_save(unsigned long *sleep_save)
 
186
{
 
187
/*      SAVE(PM_PLLDDRCFG); */
 
188
}
 
189
 
 
190
static void puv3_cpu_pm_restore(unsigned long *sleep_save)
 
191
{
 
192
/*      RESTORE(PM_PLLDDRCFG); */
 
193
}
 
194
 
 
195
static int puv3_cpu_pm_prepare(void)
 
196
{
 
197
        /* set resume return address */
 
198
        writel(virt_to_phys(puv3_cpu_resume), PM_DIVCFG);
 
199
        return 0;
 
200
}
 
201
 
 
202
static void puv3_cpu_pm_enter(suspend_state_t state)
 
203
{
 
204
        /* Clear reset status */
 
205
        writel(RESETC_RSSR_HWR | RESETC_RSSR_WDR
 
206
                        | RESETC_RSSR_SMR | RESETC_RSSR_SWR, RESETC_RSSR);
 
207
 
 
208
        switch (state) {
 
209
/*      case PM_SUSPEND_ON:
 
210
                puv3_cpu_idle();
 
211
                break; */
 
212
        case PM_SUSPEND_MEM:
 
213
                puv3_cpu_pm_prepare();
 
214
                puv3_cpu_suspend(PM_PMCR_SFB);
 
215
                break;
 
216
        }
 
217
}
 
218
 
 
219
static int puv3_cpu_pm_valid(suspend_state_t state)
 
220
{
 
221
        return state == PM_SUSPEND_MEM;
 
222
}
 
223
 
 
224
static void puv3_cpu_pm_finish(void)
 
225
{
 
226
        /* ensure not to come back here if it wasn't intended */
 
227
        /* PSPR = 0; */
 
228
}
 
229
 
 
230
static struct puv3_cpu_pm_fns puv3_cpu_pm_fnss = {
 
231
        .save_count     = SLEEP_SAVE_COUNT,
 
232
        .valid          = puv3_cpu_pm_valid,
 
233
        .save           = puv3_cpu_pm_save,
 
234
        .restore        = puv3_cpu_pm_restore,
 
235
        .enter          = puv3_cpu_pm_enter,
 
236
        .prepare        = puv3_cpu_pm_prepare,
 
237
        .finish         = puv3_cpu_pm_finish,
 
238
};
 
239
 
 
240
static void __init puv3_init_pm(void)
 
241
{
 
242
        puv3_cpu_pm_fns = &puv3_cpu_pm_fnss;
 
243
}
 
244
#else
 
245
static inline void puv3_init_pm(void) {}
 
246
#endif
 
247
 
 
248
void puv3_ps2_init(void)
 
249
{
 
250
        struct clk *bclk32;
 
251
 
 
252
        bclk32 = clk_get(NULL, "BUS32_CLK");
 
253
        writel(clk_get_rate(bclk32) / 200000, PS2_CNT); /* should > 5us */
 
254
}
 
255
 
 
256
void __init puv3_core_init(void)
 
257
{
 
258
        puv3_init_pm();
 
259
        puv3_ps2_init();
 
260
 
 
261
        platform_device_register_simple("PKUnity-v3-RTC", -1,
 
262
                        puv3_rtc_resources, ARRAY_SIZE(puv3_rtc_resources));
 
263
        platform_device_register_simple("PKUnity-v3-UMAL", -1,
 
264
                        puv3_umal_resources, ARRAY_SIZE(puv3_umal_resources));
 
265
        platform_device_register_simple("PKUnity-v3-MMC", -1,
 
266
                        puv3_mmc_resources, ARRAY_SIZE(puv3_mmc_resources));
 
267
        platform_device_register_simple("PKUnity-v3-UNIGFX", -1,
 
268
                        puv3_unigfx_resources, ARRAY_SIZE(puv3_unigfx_resources));
 
269
        platform_device_register_simple("PKUnity-v3-PWM", -1,
 
270
                        puv3_pwm_resources, ARRAY_SIZE(puv3_pwm_resources));
 
271
        platform_device_register_simple("PKUnity-v3-UART", 0,
 
272
                        puv3_uart0_resources, ARRAY_SIZE(puv3_uart0_resources));
 
273
        platform_device_register_simple("PKUnity-v3-UART", 1,
 
274
                        puv3_uart1_resources, ARRAY_SIZE(puv3_uart1_resources));
 
275
        platform_device_register_simple("PKUnity-v3-AC97", -1, NULL, 0);
 
276
        platform_device_register_resndata(&platform_bus, "musb_hdrc", -1,
 
277
                        puv3_usb_resources, ARRAY_SIZE(puv3_usb_resources),
 
278
                        &puv3_usb_plat, sizeof(puv3_usb_plat));
 
279
}
 
280