aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/powerpc/00-INDEX2
-rw-r--r--Documentation/powerpc/SBC8260_memory_mapping.txt197
-rw-r--r--Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt11
-rw-r--r--arch/powerpc/Kconfig3
-rw-r--r--arch/powerpc/boot/dts/mpc832x_mds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc832x_rdb.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8349emitx.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8349emitxgp.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc834x_mds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc836x_mds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc836x_rdk.dts16
-rw-r--r--arch/powerpc/boot/dts/mpc8377_mds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8378_mds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8379_mds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8536ds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8540ads.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8541cds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8544ds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8548cds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8555cds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8560ads.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8568mds.dts1
-rw-r--r--arch/powerpc/boot/dts/mpc8572ds.dts1
-rw-r--r--arch/powerpc/kernel/lparcfg.c4
-rw-r--r--arch/powerpc/kernel/ptrace.c10
-rw-r--r--arch/powerpc/kernel/ptrace32.c2
-rw-r--r--arch/powerpc/mm/Makefile3
-rw-r--r--arch/powerpc/mm/gup.c280
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_mds.c1
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_rdb.c1
-rw-r--r--arch/powerpc/platforms/83xx/mpc834x_itx.c1
-rw-r--r--arch/powerpc/platforms/83xx/mpc834x_mds.c1
-rw-r--r--arch/powerpc/platforms/83xx/mpc836x_mds.c1
-rw-r--r--arch/powerpc/platforms/83xx/sbc834x.c1
-rw-r--r--arch/powerpc/platforms/85xx/ksi8560.c1
-rw-r--r--arch/powerpc/platforms/85xx/mpc8536_ds.c1
-rw-r--r--arch/powerpc/platforms/85xx/mpc85xx_ads.c1
-rw-r--r--arch/powerpc/platforms/85xx/mpc85xx_ds.c1
-rw-r--r--arch/powerpc/platforms/85xx/mpc85xx_mds.c1
-rw-r--r--arch/powerpc/platforms/85xx/sbc8560.c1
-rw-r--r--arch/powerpc/platforms/8xx/Kconfig10
-rw-r--r--arch/powerpc/platforms/Kconfig3
-rw-r--r--arch/powerpc/sysdev/cpm1.c267
-rw-r--r--arch/powerpc/sysdev/cpm2.c45
-rw-r--r--arch/powerpc/sysdev/cpm_common.c123
-rw-r--r--arch/powerpc/sysdev/rtc_cmos_setup.c23
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c4
-rw-r--r--drivers/ide/ppc/pmac.c13
-rw-r--r--drivers/serial/cpm_uart/cpm_uart.h11
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_core.c66
-rw-r--r--include/asm-powerpc/cpm.h3
-rw-r--r--include/asm-powerpc/cpm2.h46
-rw-r--r--include/asm-powerpc/pgtable-ppc64.h2
-rw-r--r--include/linux/pagemap.h23
54 files changed, 907 insertions, 290 deletions
diff --git a/Documentation/powerpc/00-INDEX b/Documentation/powerpc/00-INDEX
index 3be84aa38dfe..29d839ce7327 100644
--- a/Documentation/powerpc/00-INDEX
+++ b/Documentation/powerpc/00-INDEX
@@ -20,8 +20,6 @@ mpc52xx-device-tree-bindings.txt
20 - MPC5200 Device Tree Bindings 20 - MPC5200 Device Tree Bindings
21ppc_htab.txt 21ppc_htab.txt
22 - info about the Linux/PPC /proc/ppc_htab entry 22 - info about the Linux/PPC /proc/ppc_htab entry
23SBC8260_memory_mapping.txt
24 - EST SBC8260 board info
25smp.txt 23smp.txt
26 - use and state info about Linux/PPC on MP machines 24 - use and state info about Linux/PPC on MP machines
27sound.txt 25sound.txt
diff --git a/Documentation/powerpc/SBC8260_memory_mapping.txt b/Documentation/powerpc/SBC8260_memory_mapping.txt
deleted file mode 100644
index e6e9ee0506c3..000000000000
--- a/Documentation/powerpc/SBC8260_memory_mapping.txt
+++ /dev/null
@@ -1,197 +0,0 @@
1Please mail me (Jon Diekema, diekema_jon@si.com or diekema@cideas.com)
2if you have questions, comments or corrections.
3
4 * EST SBC8260 Linux memory mapping rules
5
6 http://www.estc.com/
7 http://www.estc.com/products/boards/SBC8260-8240_ds.html
8
9 Initial conditions:
10 -------------------
11
12 Tasks that need to be perform by the boot ROM before control is
13 transferred to zImage (compressed Linux kernel):
14
15 - Define the IMMR to 0xf0000000
16
17 - Initialize the memory controller so that RAM is available at
18 physical address 0x00000000. On the SBC8260 is this 16M (64M)
19 SDRAM.
20
21 - The boot ROM should only clear the RAM that it is using.
22
23 The reason for doing this is to enhances the chances of a
24 successful post mortem on a Linux panic. One of the first
25 items to examine is the 16k (LOG_BUF_LEN) circular console
26 buffer called log_buf which is defined in kernel/printk.c.
27
28 - To enhance boot ROM performance, the I-cache can be enabled.
29
30 Date: Mon, 22 May 2000 14:21:10 -0700
31 From: Neil Russell <caret@c-side.com>
32
33 LiMon (LInux MONitor) runs with and starts Linux with MMU
34 off, I-cache enabled, D-cache disabled. The I-cache doesn't
35 need hints from the MMU to work correctly as the D-cache
36 does. No D-cache means no special code to handle devices in
37 the presence of cache (no snooping, etc). The use of the
38 I-cache means that the monitor can run acceptably fast
39 directly from ROM, rather than having to copy it to RAM.
40
41 - Build the board information structure (see
42 include/asm-ppc/est8260.h for its definition)
43
44 - The compressed Linux kernel (zImage) contains a bootstrap loader
45 that is position independent; you can load it into any RAM,
46 ROM or FLASH memory address >= 0x00500000 (above 5 MB), or
47 at its link address of 0x00400000 (4 MB).
48
49 Note: If zImage is loaded at its link address of 0x00400000 (4 MB),
50 then zImage will skip the step of moving itself to
51 its link address.
52
53 - Load R3 with the address of the board information structure
54
55 - Transfer control to zImage
56
57 - The Linux console port is SMC1, and the baud rate is controlled
58 from the bi_baudrate field of the board information structure.
59 On thing to keep in mind when picking the baud rate, is that
60 there is no flow control on the SMC ports. I would stick
61 with something safe and standard like 19200.
62
63 On the EST SBC8260, the SMC1 port is on the COM1 connector of
64 the board.
65
66
67 EST SBC8260 defaults:
68 ---------------------
69
70 Chip
71 Memory Sel Bus Use
72 --------------------- --- --- ----------------------------------
73 0x00000000-0x03FFFFFF CS2 60x (16M or 64M)/64M SDRAM
74 0x04000000-0x04FFFFFF CS4 local 4M/16M SDRAM (soldered to the board)
75 0x21000000-0x21000000 CS7 60x 1B/64K Flash present detect (from the flash SIMM)
76 0x21000001-0x21000001 CS7 60x 1B/64K Switches (read) and LEDs (write)
77 0x22000000-0x2200FFFF CS5 60x 8K/64K EEPROM
78 0xFC000000-0xFCFFFFFF CS6 60x 2M/16M flash (8 bits wide, soldered to the board)
79 0xFE000000-0xFFFFFFFF CS0 60x 4M/16M flash (SIMM)
80
81 Notes:
82 ------
83
84 - The chip selects can map 32K blocks and up (powers of 2)
85
86 - The SDRAM machine can handled up to 128Mbytes per chip select
87
88 - Linux uses the 60x bus memory (the SDRAM DIMM) for the
89 communications buffers.
90
91 - BATs can map 128K-256Mbytes each. There are four data BATs and
92 four instruction BATs. Generally the data and instruction BATs
93 are mapped the same.
94
95 - The IMMR must be set above the kernel virtual memory addresses,
96 which start at 0xC0000000. Otherwise, the kernel may crash as
97 soon as you start any threads or processes due to VM collisions
98 in the kernel or user process space.
99
100
101 Details from Dan Malek <dan_malek@mvista.com> on 10/29/1999:
102
103 The user application virtual space consumes the first 2 Gbytes
104 (0x00000000 to 0x7FFFFFFF). The kernel virtual text starts at
105 0xC0000000, with data following. There is a "protection hole"
106 between the end of kernel data and the start of the kernel
107 dynamically allocated space, but this space is still within
108 0xCxxxxxxx.
109
110 Obviously the kernel can't map any physical addresses 1:1 in
111 these ranges.
112
113
114 Details from Dan Malek <dan_malek@mvista.com> on 5/19/2000:
115
116 During the early kernel initialization, the kernel virtual
117 memory allocator is not operational. Prior to this KVM
118 initialization, we choose to map virtual to physical addresses
119 1:1. That is, the kernel virtual address exactly matches the
120 physical address on the bus. These mappings are typically done
121 in arch/ppc/kernel/head.S, or arch/ppc/mm/init.c. Only
122 absolutely necessary mappings should be done at this time, for
123 example board control registers or a serial uart. Normal device
124 driver initialization should map resources later when necessary.
125
126 Although platform dependent, and certainly the case for embedded
127 8xx, traditionally memory is mapped at physical address zero,
128 and I/O devices above physical address 0x80000000. The lowest
129 and highest (above 0xf0000000) I/O addresses are traditionally
130 used for devices or registers we need to map during kernel
131 initialization and prior to KVM operation. For this reason,
132 and since it followed prior PowerPC platform examples, I chose
133 to map the embedded 8xx kernel to the 0xc0000000 virtual address.
134 This way, we can enable the MMU to map the kernel for proper
135 operation, and still map a few windows before the KVM is operational.
136
137 On some systems, you could possibly run the kernel at the
138 0x80000000 or any other virtual address. It just depends upon
139 mapping that must be done prior to KVM operational. You can never
140 map devices or kernel spaces that overlap with the user virtual
141 space. This is why default IMMR mapping used by most BDM tools
142 won't work. They put the IMMR at something like 0x10000000 or
143 0x02000000 for example. You simply can't map these addresses early
144 in the kernel, and continue proper system operation.
145
146 The embedded 8xx/82xx kernel is mature enough that all you should
147 need to do is map the IMMR someplace at or above 0xf0000000 and it
148 should boot far enough to get serial console messages and KGDB
149 connected on any platform. There are lots of other subtle memory
150 management design features that you simply don't need to worry
151 about. If you are changing functions related to MMU initialization,
152 you are likely breaking things that are known to work and are
153 heading down a path of disaster and frustration. Your changes
154 should be to make the flexibility of the processor fit Linux,
155 not force arbitrary and non-workable memory mappings into Linux.
156
157 - You don't want to change KERNELLOAD or KERNELBASE, otherwise the
158 virtual memory and MMU code will get confused.
159
160 arch/ppc/Makefile:KERNELLOAD = 0xc0000000
161
162 include/asm-ppc/page.h:#define PAGE_OFFSET 0xc0000000
163 include/asm-ppc/page.h:#define KERNELBASE PAGE_OFFSET
164
165 - RAM is at physical address 0x00000000, and gets mapped to
166 virtual address 0xC0000000 for the kernel.
167
168
169 Physical addresses used by the Linux kernel:
170 --------------------------------------------
171
172 0x00000000-0x3FFFFFFF 1GB reserved for RAM
173 0xF0000000-0xF001FFFF 128K IMMR 64K used for dual port memory,
174 64K for 8260 registers
175
176
177 Logical addresses used by the Linux kernel:
178 -------------------------------------------
179
180 0xF0000000-0xFFFFFFFF 256M BAT0 (IMMR: dual port RAM, registers)
181 0xE0000000-0xEFFFFFFF 256M BAT1 (I/O space for custom boards)
182 0xC0000000-0xCFFFFFFF 256M BAT2 (RAM)
183 0xD0000000-0xDFFFFFFF 256M BAT3 (if RAM > 256MByte)
184
185
186 EST SBC8260 Linux mapping:
187 --------------------------
188
189 DBAT0, IBAT0, cache inhibited:
190
191 Chip
192 Memory Sel Use
193 --------------------- --- ---------------------------------
194 0xF0000000-0xF001FFFF n/a IMMR: dual port RAM, registers
195
196 DBAT1, IBAT1, cache inhibited:
197
diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt
index b35f3482e3e4..2ea76d9d137c 100644
--- a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt
+++ b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt
@@ -7,6 +7,15 @@ Currently defined compatibles:
7- fsl,cpm2-scc-uart 7- fsl,cpm2-scc-uart
8- fsl,qe-uart 8- fsl,qe-uart
9 9
10Modem control lines connected to GPIO controllers are listed in the gpios
11property as described in booting-without-of.txt, section IX.1 in the following
12order:
13
14CTS, RTS, DCD, DSR, DTR, and RI.
15
16The gpios property is optional and can be left out when control lines are
17not used.
18
10Example: 19Example:
11 20
12 serial@11a00 { 21 serial@11a00 {
@@ -18,4 +27,6 @@ Example:
18 interrupt-parent = <&PIC>; 27 interrupt-parent = <&PIC>;
19 fsl,cpm-brg = <1>; 28 fsl,cpm-brg = <1>;
20 fsl,cpm-command = <00800000>; 29 fsl,cpm-command = <00800000>;
30 gpios = <&gpio_c 15 0
31 &gpio_d 29 0>;
21 }; 32 };
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 587da5e0990f..63c9cafda9c4 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -42,6 +42,9 @@ config GENERIC_HARDIRQS
42 bool 42 bool
43 default y 43 default y
44 44
45config HAVE_GET_USER_PAGES_FAST
46 def_bool PPC64
47
45config HAVE_SETUP_PER_CPU_AREA 48config HAVE_SETUP_PER_CPU_AREA
46 def_bool PPC64 49 def_bool PPC64
47 50
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts
index 7345743d3d96..fbc930410ff6 100644
--- a/arch/powerpc/boot/dts/mpc832x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc832x_mds.dts
@@ -68,6 +68,7 @@
68 #address-cells = <1>; 68 #address-cells = <1>;
69 #size-cells = <1>; 69 #size-cells = <1>;
70 device_type = "soc"; 70 device_type = "soc";
71 compatible = "simple-bus";
71 ranges = <0x0 0xe0000000 0x00100000>; 72 ranges = <0x0 0xe0000000 0x00100000>;
72 reg = <0xe0000000 0x00000200>; 73 reg = <0xe0000000 0x00000200>;
73 bus-frequency = <132000000>; 74 bus-frequency = <132000000>;
diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
index e74c045a0f8c..b157d1885a28 100644
--- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts
@@ -51,6 +51,7 @@
51 #address-cells = <1>; 51 #address-cells = <1>;
52 #size-cells = <1>; 52 #size-cells = <1>;
53 device_type = "soc"; 53 device_type = "soc";
54 compatible = "simple-bus";
54 ranges = <0x0 0xe0000000 0x00100000>; 55 ranges = <0x0 0xe0000000 0x00100000>;
55 reg = <0xe0000000 0x00000200>; 56 reg = <0xe0000000 0x00000200>;
56 bus-frequency = <0>; 57 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8349emitx.dts b/arch/powerpc/boot/dts/mpc8349emitx.dts
index 8dfab5662585..700e076ef3f5 100644
--- a/arch/powerpc/boot/dts/mpc8349emitx.dts
+++ b/arch/powerpc/boot/dts/mpc8349emitx.dts
@@ -52,6 +52,7 @@
52 #address-cells = <1>; 52 #address-cells = <1>;
53 #size-cells = <1>; 53 #size-cells = <1>;
54 device_type = "soc"; 54 device_type = "soc";
55 compatible = "simple-bus";
55 ranges = <0x0 0xe0000000 0x00100000>; 56 ranges = <0x0 0xe0000000 0x00100000>;
56 reg = <0xe0000000 0x00000200>; 57 reg = <0xe0000000 0x00000200>;
57 bus-frequency = <0>; // from bootloader 58 bus-frequency = <0>; // from bootloader
diff --git a/arch/powerpc/boot/dts/mpc8349emitxgp.dts b/arch/powerpc/boot/dts/mpc8349emitxgp.dts
index 49ca3497eefb..cdd3063258ea 100644
--- a/arch/powerpc/boot/dts/mpc8349emitxgp.dts
+++ b/arch/powerpc/boot/dts/mpc8349emitxgp.dts
@@ -50,6 +50,7 @@
50 #address-cells = <1>; 50 #address-cells = <1>;
51 #size-cells = <1>; 51 #size-cells = <1>;
52 device_type = "soc"; 52 device_type = "soc";
53 compatible = "simple-bus";
53 ranges = <0x0 0xe0000000 0x00100000>; 54 ranges = <0x0 0xe0000000 0x00100000>;
54 reg = <0xe0000000 0x00000200>; 55 reg = <0xe0000000 0x00000200>;
55 bus-frequency = <0>; // from bootloader 56 bus-frequency = <0>; // from bootloader
diff --git a/arch/powerpc/boot/dts/mpc834x_mds.dts b/arch/powerpc/boot/dts/mpc834x_mds.dts
index ba586cb7afbb..783241c00240 100644
--- a/arch/powerpc/boot/dts/mpc834x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc834x_mds.dts
@@ -57,6 +57,7 @@
57 #address-cells = <1>; 57 #address-cells = <1>;
58 #size-cells = <1>; 58 #size-cells = <1>;
59 device_type = "soc"; 59 device_type = "soc";
60 compatible = "simple-bus";
60 ranges = <0x0 0xe0000000 0x00100000>; 61 ranges = <0x0 0xe0000000 0x00100000>;
61 reg = <0xe0000000 0x00000200>; 62 reg = <0xe0000000 0x00000200>;
62 bus-frequency = <0>; 63 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts
index 3701dae1ee02..a3b76a709951 100644
--- a/arch/powerpc/boot/dts/mpc836x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc836x_mds.dts
@@ -61,6 +61,7 @@
61 #address-cells = <1>; 61 #address-cells = <1>;
62 #size-cells = <1>; 62 #size-cells = <1>;
63 device_type = "soc"; 63 device_type = "soc";
64 compatible = "simple-bus";
64 ranges = <0x0 0xe0000000 0x00100000>; 65 ranges = <0x0 0xe0000000 0x00100000>;
65 reg = <0xe0000000 0x00000200>; 66 reg = <0xe0000000 0x00000200>;
66 bus-frequency = <264000000>; 67 bus-frequency = <264000000>;
diff --git a/arch/powerpc/boot/dts/mpc836x_rdk.dts b/arch/powerpc/boot/dts/mpc836x_rdk.dts
index 8acd1d6577f2..89c9202f8bd7 100644
--- a/arch/powerpc/boot/dts/mpc836x_rdk.dts
+++ b/arch/powerpc/boot/dts/mpc836x_rdk.dts
@@ -149,18 +149,14 @@
149 }; 149 };
150 150
151 crypto@30000 { 151 crypto@30000 {
152 compatible = "fsl,sec2-crypto"; 152 compatible = "fsl,sec2.0";
153 reg = <0x30000 0x10000>; 153 reg = <0x30000 0x10000>;
154 interrupts = <11 8>; 154 interrupts = <11 0x8>;
155 interrupt-parent = <&ipic>; 155 interrupt-parent = <&ipic>;
156 num-channels = <4>; 156 fsl,num-channels = <4>;
157 channel-fifo-len = <24>; 157 fsl,channel-fifo-len = <24>;
158 exec-units-mask = <0x7e>; 158 fsl,exec-units-mask = <0x7e>;
159 /* 159 fsl,descriptor-types-mask = <0x01010ebf>;
160 * desc mask is for rev1.x, we need runtime fixup
161 * for >=2.x
162 */
163 descriptor-types-mask = <0x1010ebf>;
164 }; 160 };
165 161
166 ipic: interrupt-controller@700 { 162 ipic: interrupt-controller@700 {
diff --git a/arch/powerpc/boot/dts/mpc8377_mds.dts b/arch/powerpc/boot/dts/mpc8377_mds.dts
index 0a700cb5f611..432782b6d20a 100644
--- a/arch/powerpc/boot/dts/mpc8377_mds.dts
+++ b/arch/powerpc/boot/dts/mpc8377_mds.dts
@@ -117,6 +117,7 @@
117 #address-cells = <1>; 117 #address-cells = <1>;
118 #size-cells = <1>; 118 #size-cells = <1>;
119 device_type = "soc"; 119 device_type = "soc";
120 compatible = "simple-bus";
120 ranges = <0x0 0xe0000000 0x00100000>; 121 ranges = <0x0 0xe0000000 0x00100000>;
121 reg = <0xe0000000 0x00000200>; 122 reg = <0xe0000000 0x00000200>;
122 bus-frequency = <0>; 123 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8378_mds.dts b/arch/powerpc/boot/dts/mpc8378_mds.dts
index 29c8c76a58f7..ed32c8ddafe3 100644
--- a/arch/powerpc/boot/dts/mpc8378_mds.dts
+++ b/arch/powerpc/boot/dts/mpc8378_mds.dts
@@ -117,6 +117,7 @@
117 #address-cells = <1>; 117 #address-cells = <1>;
118 #size-cells = <1>; 118 #size-cells = <1>;
119 device_type = "soc"; 119 device_type = "soc";
120 compatible = "simple-bus";
120 ranges = <0x0 0xe0000000 0x00100000>; 121 ranges = <0x0 0xe0000000 0x00100000>;
121 reg = <0xe0000000 0x00000200>; 122 reg = <0xe0000000 0x00000200>;
122 bus-frequency = <0>; 123 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8379_mds.dts b/arch/powerpc/boot/dts/mpc8379_mds.dts
index d641a8985ea3..f4db9ed4a301 100644
--- a/arch/powerpc/boot/dts/mpc8379_mds.dts
+++ b/arch/powerpc/boot/dts/mpc8379_mds.dts
@@ -117,6 +117,7 @@
117 #address-cells = <1>; 117 #address-cells = <1>;
118 #size-cells = <1>; 118 #size-cells = <1>;
119 device_type = "soc"; 119 device_type = "soc";
120 compatible = "simple-bus";
120 ranges = <0x0 0xe0000000 0x00100000>; 121 ranges = <0x0 0xe0000000 0x00100000>;
121 reg = <0xe0000000 0x00000200>; 122 reg = <0xe0000000 0x00000200>;
122 bus-frequency = <0>; 123 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8536ds.dts b/arch/powerpc/boot/dts/mpc8536ds.dts
index 02cfa24a1695..1505d6855eff 100644
--- a/arch/powerpc/boot/dts/mpc8536ds.dts
+++ b/arch/powerpc/boot/dts/mpc8536ds.dts
@@ -49,6 +49,7 @@
49 #address-cells = <1>; 49 #address-cells = <1>;
50 #size-cells = <1>; 50 #size-cells = <1>;
51 device_type = "soc"; 51 device_type = "soc";
52 compatible = "simple-bus";
52 ranges = <0x0 0xffe00000 0x100000>; 53 ranges = <0x0 0xffe00000 0x100000>;
53 reg = <0xffe00000 0x1000>; 54 reg = <0xffe00000 0x1000>;
54 bus-frequency = <0>; // Filled out by uboot. 55 bus-frequency = <0>; // Filled out by uboot.
diff --git a/arch/powerpc/boot/dts/mpc8540ads.dts b/arch/powerpc/boot/dts/mpc8540ads.dts
index f2273a872b11..9568bfaff8f7 100644
--- a/arch/powerpc/boot/dts/mpc8540ads.dts
+++ b/arch/powerpc/boot/dts/mpc8540ads.dts
@@ -53,6 +53,7 @@
53 #address-cells = <1>; 53 #address-cells = <1>;
54 #size-cells = <1>; 54 #size-cells = <1>;
55 device_type = "soc"; 55 device_type = "soc";
56 compatible = "simple-bus";
56 ranges = <0x0 0xe0000000 0x100000>; 57 ranges = <0x0 0xe0000000 0x100000>;
57 reg = <0xe0000000 0x100000>; // CCSRBAR 1M 58 reg = <0xe0000000 0x100000>; // CCSRBAR 1M
58 bus-frequency = <0>; 59 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8541cds.dts b/arch/powerpc/boot/dts/mpc8541cds.dts
index c4469f19ff82..6480f4fd96e0 100644
--- a/arch/powerpc/boot/dts/mpc8541cds.dts
+++ b/arch/powerpc/boot/dts/mpc8541cds.dts
@@ -53,6 +53,7 @@
53 #address-cells = <1>; 53 #address-cells = <1>;
54 #size-cells = <1>; 54 #size-cells = <1>;
55 device_type = "soc"; 55 device_type = "soc";
56 compatible = "simple-bus";
56 ranges = <0x0 0xe0000000 0x100000>; 57 ranges = <0x0 0xe0000000 0x100000>;
57 reg = <0xe0000000 0x1000>; // CCSRBAR 1M 58 reg = <0xe0000000 0x1000>; // CCSRBAR 1M
58 bus-frequency = <0>; 59 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8544ds.dts b/arch/powerpc/boot/dts/mpc8544ds.dts
index 7d3829d3495e..f1fb20737e3e 100644
--- a/arch/powerpc/boot/dts/mpc8544ds.dts
+++ b/arch/powerpc/boot/dts/mpc8544ds.dts
@@ -54,6 +54,7 @@
54 #address-cells = <1>; 54 #address-cells = <1>;
55 #size-cells = <1>; 55 #size-cells = <1>;
56 device_type = "soc"; 56 device_type = "soc";
57 compatible = "simple-bus";
57 58
58 ranges = <0x0 0xe0000000 0x100000>; 59 ranges = <0x0 0xe0000000 0x100000>;
59 reg = <0xe0000000 0x1000>; // CCSRBAR 1M 60 reg = <0xe0000000 0x1000>; // CCSRBAR 1M
diff --git a/arch/powerpc/boot/dts/mpc8548cds.dts b/arch/powerpc/boot/dts/mpc8548cds.dts
index d84466bb7eca..431b496270dc 100644
--- a/arch/powerpc/boot/dts/mpc8548cds.dts
+++ b/arch/powerpc/boot/dts/mpc8548cds.dts
@@ -58,6 +58,7 @@
58 #address-cells = <1>; 58 #address-cells = <1>;
59 #size-cells = <1>; 59 #size-cells = <1>;
60 device_type = "soc"; 60 device_type = "soc";
61 compatible = "simple-bus";
61 ranges = <0x0 0xe0000000 0x100000>; 62 ranges = <0x0 0xe0000000 0x100000>;
62 reg = <0xe0000000 0x1000>; // CCSRBAR 63 reg = <0xe0000000 0x1000>; // CCSRBAR
63 bus-frequency = <0>; 64 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8555cds.dts b/arch/powerpc/boot/dts/mpc8555cds.dts
index e03a78006283..d833a5c4f476 100644
--- a/arch/powerpc/boot/dts/mpc8555cds.dts
+++ b/arch/powerpc/boot/dts/mpc8555cds.dts
@@ -53,6 +53,7 @@
53 #address-cells = <1>; 53 #address-cells = <1>;
54 #size-cells = <1>; 54 #size-cells = <1>;
55 device_type = "soc"; 55 device_type = "soc";
56 compatible = "simple-bus";
56 ranges = <0x0 0xe0000000 0x100000>; 57 ranges = <0x0 0xe0000000 0x100000>;
57 reg = <0xe0000000 0x1000>; // CCSRBAR 1M 58 reg = <0xe0000000 0x1000>; // CCSRBAR 1M
58 bus-frequency = <0>; 59 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8560ads.dts b/arch/powerpc/boot/dts/mpc8560ads.dts
index ba8159de040b..4d1f2f284094 100644
--- a/arch/powerpc/boot/dts/mpc8560ads.dts
+++ b/arch/powerpc/boot/dts/mpc8560ads.dts
@@ -53,6 +53,7 @@
53 #address-cells = <1>; 53 #address-cells = <1>;
54 #size-cells = <1>; 54 #size-cells = <1>;
55 device_type = "soc"; 55 device_type = "soc";
56 compatible = "simple-bus";
56 ranges = <0x0 0xe0000000 0x100000>; 57 ranges = <0x0 0xe0000000 0x100000>;
57 reg = <0xe0000000 0x200>; 58 reg = <0xe0000000 0x200>;
58 bus-frequency = <330000000>; 59 bus-frequency = <330000000>;
diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
index 9c30a34821dc..a15f10343f53 100644
--- a/arch/powerpc/boot/dts/mpc8568mds.dts
+++ b/arch/powerpc/boot/dts/mpc8568mds.dts
@@ -60,6 +60,7 @@
60 #address-cells = <1>; 60 #address-cells = <1>;
61 #size-cells = <1>; 61 #size-cells = <1>;
62 device_type = "soc"; 62 device_type = "soc";
63 compatible = "simple-bus";
63 ranges = <0x0 0xe0000000 0x100000>; 64 ranges = <0x0 0xe0000000 0x100000>;
64 reg = <0xe0000000 0x1000>; 65 reg = <0xe0000000 0x1000>;
65 bus-frequency = <0>; 66 bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc8572ds.dts b/arch/powerpc/boot/dts/mpc8572ds.dts
index 08c61e3daecc..e124dd18fb5a 100644
--- a/arch/powerpc/boot/dts/mpc8572ds.dts
+++ b/arch/powerpc/boot/dts/mpc8572ds.dts
@@ -68,6 +68,7 @@
68 #address-cells = <1>; 68 #address-cells = <1>;
69 #size-cells = <1>; 69 #size-cells = <1>;
70 device_type = "soc"; 70 device_type = "soc";
71 compatible = "simple-bus";
71 ranges = <0x0 0xffe00000 0x100000>; 72 ranges = <0x0 0xffe00000 0x100000>;
72 reg = <0xffe00000 0x1000>; // CCSRBAR & soc regs, remove once parse code for immrbase fixed 73 reg = <0xffe00000 0x1000>; // CCSRBAR & soc regs, remove once parse code for immrbase fixed
73 bus-frequency = <0>; // Filled out by uboot. 74 bus-frequency = <0>; // Filled out by uboot.
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 9f856a0c3e38..1a09719c7628 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -636,10 +636,6 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
636 retval = -EIO; 636 retval = -EIO;
637 } else if (retval == H_PARAMETER) { 637 } else if (retval == H_PARAMETER) {
638 retval = -EINVAL; 638 retval = -EINVAL;
639 } else {
640 printk(KERN_WARNING "%s: received unknown hv return code %ld",
641 __func__, retval);
642 retval = -EIO;
643 } 639 }
644 640
645 return retval; 641 return retval;
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 6b66cd85b433..3635be61f899 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -375,7 +375,7 @@ static int vsr_get(struct task_struct *target, const struct user_regset *regset,
375 flush_vsx_to_thread(target); 375 flush_vsx_to_thread(target);
376 376
377 for (i = 0; i < 32 ; i++) 377 for (i = 0; i < 32 ; i++)
378 buf[i] = current->thread.fpr[i][TS_VSRLOWOFFSET]; 378 buf[i] = target->thread.fpr[i][TS_VSRLOWOFFSET];
379 ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, 379 ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
380 buf, 0, 32 * sizeof(double)); 380 buf, 0, 32 * sizeof(double));
381 381
@@ -394,7 +394,7 @@ static int vsr_set(struct task_struct *target, const struct user_regset *regset,
394 ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, 394 ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
395 buf, 0, 32 * sizeof(double)); 395 buf, 0, 32 * sizeof(double));
396 for (i = 0; i < 32 ; i++) 396 for (i = 0; i < 32 ; i++)
397 current->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i]; 397 target->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
398 398
399 399
400 return ret; 400 return ret;
@@ -975,15 +975,13 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
975 case PTRACE_GETVSRREGS: 975 case PTRACE_GETVSRREGS:
976 return copy_regset_to_user(child, &user_ppc_native_view, 976 return copy_regset_to_user(child, &user_ppc_native_view,
977 REGSET_VSX, 977 REGSET_VSX,
978 0, (32 * sizeof(vector128) + 978 0, 32 * sizeof(double),
979 sizeof(u32)),
980 (void __user *) data); 979 (void __user *) data);
981 980
982 case PTRACE_SETVSRREGS: 981 case PTRACE_SETVSRREGS:
983 return copy_regset_from_user(child, &user_ppc_native_view, 982 return copy_regset_from_user(child, &user_ppc_native_view,
984 REGSET_VSX, 983 REGSET_VSX,
985 0, (32 * sizeof(vector128) + 984 0, 32 * sizeof(double),
986 sizeof(u32)),
987 (const void __user *) data); 985 (const void __user *) data);
988#endif 986#endif
989#ifdef CONFIG_SPE 987#ifdef CONFIG_SPE
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 67bf1a1e7e14..197d49c790ad 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -294,6 +294,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
294 case PTRACE_SETFPREGS: 294 case PTRACE_SETFPREGS:
295 case PTRACE_GETVRREGS: 295 case PTRACE_GETVRREGS:
296 case PTRACE_SETVRREGS: 296 case PTRACE_SETVRREGS:
297 case PTRACE_GETVSRREGS:
298 case PTRACE_SETVSRREGS:
297 case PTRACE_GETREGS64: 299 case PTRACE_GETREGS64:
298 case PTRACE_SETREGS64: 300 case PTRACE_SETREGS64:
299 case PPC_PTRACE_GETFPREGS: 301 case PPC_PTRACE_GETFPREGS:
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index 1c00e0196f6c..e7392b45a5ef 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -12,7 +12,8 @@ obj-y := fault.o mem.o \
12 mmu_context_$(CONFIG_WORD_SIZE).o 12 mmu_context_$(CONFIG_WORD_SIZE).o
13hash-$(CONFIG_PPC_NATIVE) := hash_native_64.o 13hash-$(CONFIG_PPC_NATIVE) := hash_native_64.o
14obj-$(CONFIG_PPC64) += hash_utils_64.o \ 14obj-$(CONFIG_PPC64) += hash_utils_64.o \
15 slb_low.o slb.o stab.o mmap.o $(hash-y) 15 slb_low.o slb.o stab.o \
16 gup.o mmap.o $(hash-y)
16obj-$(CONFIG_PPC_STD_MMU_32) += ppc_mmu_32.o 17obj-$(CONFIG_PPC_STD_MMU_32) += ppc_mmu_32.o
17obj-$(CONFIG_PPC_STD_MMU) += hash_low_$(CONFIG_WORD_SIZE).o \ 18obj-$(CONFIG_PPC_STD_MMU) += hash_low_$(CONFIG_WORD_SIZE).o \
18 tlb_$(CONFIG_WORD_SIZE).o 19 tlb_$(CONFIG_WORD_SIZE).o
diff --git a/arch/powerpc/mm/gup.c b/arch/powerpc/mm/gup.c
new file mode 100644
index 000000000000..9fdf4d6335e4
--- /dev/null
+++ b/arch/powerpc/mm/gup.c
@@ -0,0 +1,280 @@
1/*
2 * Lockless get_user_pages_fast for powerpc
3 *
4 * Copyright (C) 2008 Nick Piggin
5 * Copyright (C) 2008 Novell Inc.
6 */
7#undef DEBUG
8
9#include <linux/sched.h>
10#include <linux/mm.h>
11#include <linux/hugetlb.h>
12#include <linux/vmstat.h>
13#include <linux/pagemap.h>
14#include <linux/rwsem.h>
15#include <asm/pgtable.h>
16
17/*
18 * The performance critical leaf functions are made noinline otherwise gcc
19 * inlines everything into a single function which results in too much
20 * register pressure.
21 */
22static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
23 unsigned long end, int write, struct page **pages, int *nr)
24{
25 unsigned long mask, result;
26 pte_t *ptep;
27
28 result = _PAGE_PRESENT|_PAGE_USER;
29 if (write)
30 result |= _PAGE_RW;
31 mask = result | _PAGE_SPECIAL;
32
33 ptep = pte_offset_kernel(&pmd, addr);
34 do {
35 pte_t pte = *ptep;
36 struct page *page;
37
38 if ((pte_val(pte) & mask) != result)
39 return 0;
40 VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
41 page = pte_page(pte);
42 if (!page_cache_get_speculative(page))
43 return 0;
44 if (unlikely(pte != *ptep)) {
45 put_page(page);
46 return 0;
47 }
48 pages[*nr] = page;
49 (*nr)++;
50
51 } while (ptep++, addr += PAGE_SIZE, addr != end);
52
53 return 1;
54}
55
56#ifdef CONFIG_HUGETLB_PAGE
57static noinline int gup_huge_pte(pte_t *ptep, struct hstate *hstate,
58 unsigned long *addr, unsigned long end,
59 int write, struct page **pages, int *nr)
60{
61 unsigned long mask;
62 unsigned long pte_end;
63 struct page *head, *page;
64 pte_t pte;
65 int refs;
66
67 pte_end = (*addr + huge_page_size(hstate)) & huge_page_mask(hstate);
68 if (pte_end < end)
69 end = pte_end;
70
71 pte = *ptep;
72 mask = _PAGE_PRESENT|_PAGE_USER;
73 if (write)
74 mask |= _PAGE_RW;
75 if ((pte_val(pte) & mask) != mask)
76 return 0;
77 /* hugepages are never "special" */
78 VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
79
80 refs = 0;
81 head = pte_page(pte);
82 page = head + ((*addr & ~huge_page_mask(hstate)) >> PAGE_SHIFT);
83 do {
84 VM_BUG_ON(compound_head(page) != head);
85 pages[*nr] = page;
86 (*nr)++;
87 page++;
88 refs++;
89 } while (*addr += PAGE_SIZE, *addr != end);
90
91 if (!page_cache_add_speculative(head, refs)) {
92 *nr -= refs;
93 return 0;
94 }
95 if (unlikely(pte != *ptep)) {
96 /* Could be optimized better */
97 while (*nr) {
98 put_page(page);
99 (*nr)--;
100 }
101 }
102
103 return 1;
104}
105#endif /* CONFIG_HUGETLB_PAGE */
106
107static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
108 int write, struct page **pages, int *nr)
109{
110 unsigned long next;
111 pmd_t *pmdp;
112
113 pmdp = pmd_offset(&pud, addr);
114 do {
115 pmd_t pmd = *pmdp;
116
117 next = pmd_addr_end(addr, end);
118 if (pmd_none(pmd))
119 return 0;
120 if (!gup_pte_range(pmd, addr, next, write, pages, nr))
121 return 0;
122 } while (pmdp++, addr = next, addr != end);
123
124 return 1;
125}
126
127static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
128 int write, struct page **pages, int *nr)
129{
130 unsigned long next;
131 pud_t *pudp;
132
133 pudp = pud_offset(&pgd, addr);
134 do {
135 pud_t pud = *pudp;
136
137 next = pud_addr_end(addr, end);
138 if (pud_none(pud))
139 return 0;
140 if (!gup_pmd_range(pud, addr, next, write, pages, nr))
141 return 0;
142 } while (pudp++, addr = next, addr != end);
143
144 return 1;
145}
146
147int get_user_pages_fast(unsigned long start, int nr_pages, int write,
148 struct page **pages)
149{
150 struct mm_struct *mm = current->mm;
151 unsigned long addr, len, end;
152 unsigned long next;
153 pgd_t *pgdp;
154 int psize, nr = 0;
155 unsigned int shift;
156
157 pr_debug("%s(%lx,%x,%s)\n", __func__, start, nr_pages, write ? "write" : "read");
158
159 start &= PAGE_MASK;
160 addr = start;
161 len = (unsigned long) nr_pages << PAGE_SHIFT;
162 end = start + len;
163
164 if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
165 start, len)))
166 goto slow_irqon;
167
168 pr_debug(" aligned: %lx .. %lx\n", start, end);
169
170#ifdef CONFIG_HUGETLB_PAGE
171 /* We bail out on slice boundary crossing when hugetlb is
172 * enabled in order to not have to deal with two different
173 * page table formats
174 */
175 if (addr < SLICE_LOW_TOP) {
176 if (end > SLICE_LOW_TOP)
177 goto slow_irqon;
178
179 if (unlikely(GET_LOW_SLICE_INDEX(addr) !=
180 GET_LOW_SLICE_INDEX(end - 1)))
181 goto slow_irqon;
182 } else {
183 if (unlikely(GET_HIGH_SLICE_INDEX(addr) !=
184 GET_HIGH_SLICE_INDEX(end - 1)))
185 goto slow_irqon;
186 }
187#endif /* CONFIG_HUGETLB_PAGE */
188
189 /*
190 * XXX: batch / limit 'nr', to avoid large irq off latency
191 * needs some instrumenting to determine the common sizes used by
192 * important workloads (eg. DB2), and whether limiting the batch size
193 * will decrease performance.
194 *
195 * It seems like we're in the clear for the moment. Direct-IO is
196 * the main guy that batches up lots of get_user_pages, and even
197 * they are limited to 64-at-a-time which is not so many.
198 */
199 /*
200 * This doesn't prevent pagetable teardown, but does prevent
201 * the pagetables from being freed on powerpc.
202 *
203 * So long as we atomically load page table pointers versus teardown,
204 * we can follow the address down to the the page and take a ref on it.
205 */
206 local_irq_disable();
207
208 psize = get_slice_psize(mm, addr);
209 shift = mmu_psize_defs[psize].shift;
210
211#ifdef CONFIG_HUGETLB_PAGE
212 if (unlikely(mmu_huge_psizes[psize])) {
213 pte_t *ptep;
214 unsigned long a = addr;
215 unsigned long sz = ((1UL) << shift);
216 struct hstate *hstate = size_to_hstate(sz);
217
218 BUG_ON(!hstate);
219 /*
220 * XXX: could be optimized to avoid hstate
221 * lookup entirely (just use shift)
222 */
223
224 do {
225 VM_BUG_ON(shift != mmu_psize_defs[get_slice_psize(mm, a)].shift);
226 ptep = huge_pte_offset(mm, a);
227 pr_debug(" %016lx: huge ptep %p\n", a, ptep);
228 if (!ptep || !gup_huge_pte(ptep, hstate, &a, end, write, pages,
229 &nr))
230 goto slow;
231 } while (a != end);
232 } else
233#endif /* CONFIG_HUGETLB_PAGE */
234 {
235 pgdp = pgd_offset(mm, addr);
236 do {
237 pgd_t pgd = *pgdp;
238
239 VM_BUG_ON(shift != mmu_psize_defs[get_slice_psize(mm, addr)].shift);
240 pr_debug(" %016lx: normal pgd %p\n", addr, (void *)pgd);
241 next = pgd_addr_end(addr, end);
242 if (pgd_none(pgd))
243 goto slow;
244 if (!gup_pud_range(pgd, addr, next, write, pages, &nr))
245 goto slow;
246 } while (pgdp++, addr = next, addr != end);
247 }
248 local_irq_enable();
249
250 VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT);
251 return nr;
252
253 {
254 int ret;
255
256slow:
257 local_irq_enable();
258slow_irqon:
259 pr_debug(" slow path ! nr = %d\n", nr);
260
261 /* Try to get the remaining pages with get_user_pages */
262 start += nr << PAGE_SHIFT;
263 pages += nr;
264
265 down_read(&mm->mmap_sem);
266 ret = get_user_pages(current, mm, start,
267 (end - start) >> PAGE_SHIFT, write, 0, pages, NULL);
268 up_read(&mm->mmap_sem);
269
270 /* Have to be a bit careful with return values */
271 if (nr > 0) {
272 if (ret < 0)
273 ret = nr;
274 else
275 ret += nr;
276 }
277
278 return ret;
279 }
280}
diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c
index dd4be4aee314..ec43477caa63 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c
@@ -105,6 +105,7 @@ static void __init mpc832x_sys_setup_arch(void)
105static struct of_device_id mpc832x_ids[] = { 105static struct of_device_id mpc832x_ids[] = {
106 { .type = "soc", }, 106 { .type = "soc", },
107 { .compatible = "soc", }, 107 { .compatible = "soc", },
108 { .compatible = "simple-bus", },
108 { .type = "qe", }, 109 { .type = "qe", },
109 { .compatible = "fsl,qe", }, 110 { .compatible = "fsl,qe", },
110 {}, 111 {},
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index f049d692d4c8..0300268ce5b8 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -115,6 +115,7 @@ static void __init mpc832x_rdb_setup_arch(void)
115static struct of_device_id mpc832x_ids[] = { 115static struct of_device_id mpc832x_ids[] = {
116 { .type = "soc", }, 116 { .type = "soc", },
117 { .compatible = "soc", }, 117 { .compatible = "soc", },
118 { .compatible = "simple-bus", },
118 { .type = "qe", }, 119 { .type = "qe", },
119 { .compatible = "fsl,qe", }, 120 { .compatible = "fsl,qe", },
120 {}, 121 {},
diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c
index 7301d77a08ee..76092d37c7d9 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_itx.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c
@@ -41,6 +41,7 @@
41 41
42static struct of_device_id __initdata mpc834x_itx_ids[] = { 42static struct of_device_id __initdata mpc834x_itx_ids[] = {
43 { .compatible = "fsl,pq2pro-localbus", }, 43 { .compatible = "fsl,pq2pro-localbus", },
44 { .compatible = "simple-bus", },
44 {}, 45 {},
45}; 46};
46 47
diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c
index 30d509aa9f08..fc3f2ed1f3e9 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c
@@ -111,6 +111,7 @@ static void __init mpc834x_mds_init_IRQ(void)
111static struct of_device_id mpc834x_ids[] = { 111static struct of_device_id mpc834x_ids[] = {
112 { .type = "soc", }, 112 { .type = "soc", },
113 { .compatible = "soc", }, 113 { .compatible = "soc", },
114 { .compatible = "simple-bus", },
114 {}, 115 {},
115}; 116};
116 117
diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c
index 75b80e836576..9d46e5bdd101 100644
--- a/arch/powerpc/platforms/83xx/mpc836x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc836x_mds.c
@@ -136,6 +136,7 @@ static void __init mpc836x_mds_setup_arch(void)
136static struct of_device_id mpc836x_ids[] = { 136static struct of_device_id mpc836x_ids[] = {
137 { .type = "soc", }, 137 { .type = "soc", },
138 { .compatible = "soc", }, 138 { .compatible = "soc", },
139 { .compatible = "simple-bus", },
139 { .type = "qe", }, 140 { .type = "qe", },
140 { .compatible = "fsl,qe", }, 141 { .compatible = "fsl,qe", },
141 {}, 142 {},
diff --git a/arch/powerpc/platforms/83xx/sbc834x.c b/arch/powerpc/platforms/83xx/sbc834x.c
index fc21f5c15bab..156c4e218009 100644
--- a/arch/powerpc/platforms/83xx/sbc834x.c
+++ b/arch/powerpc/platforms/83xx/sbc834x.c
@@ -83,6 +83,7 @@ static void __init sbc834x_init_IRQ(void)
83static struct __initdata of_device_id sbc834x_ids[] = { 83static struct __initdata of_device_id sbc834x_ids[] = {
84 { .type = "soc", }, 84 { .type = "soc", },
85 { .compatible = "soc", }, 85 { .compatible = "soc", },
86 { .compatible = "simple-bus", },
86 {}, 87 {},
87}; 88};
88 89
diff --git a/arch/powerpc/platforms/85xx/ksi8560.c b/arch/powerpc/platforms/85xx/ksi8560.c
index 2145adeb220c..8a3b117b6ce2 100644
--- a/arch/powerpc/platforms/85xx/ksi8560.c
+++ b/arch/powerpc/platforms/85xx/ksi8560.c
@@ -222,6 +222,7 @@ static void ksi8560_show_cpuinfo(struct seq_file *m)
222 222
223static struct of_device_id __initdata of_bus_ids[] = { 223static struct of_device_id __initdata of_bus_ids[] = {
224 { .type = "soc", }, 224 { .type = "soc", },
225 { .type = "simple-bus", },
225 { .name = "cpm", }, 226 { .name = "cpm", },
226 { .name = "localbus", }, 227 { .name = "localbus", },
227 {}, 228 {},
diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c
index 6b846aa1ced9..1bf5aefdfeb1 100644
--- a/arch/powerpc/platforms/85xx/mpc8536_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c
@@ -91,6 +91,7 @@ static void __init mpc8536_ds_setup_arch(void)
91static struct of_device_id __initdata mpc8536_ds_ids[] = { 91static struct of_device_id __initdata mpc8536_ds_ids[] = {
92 { .type = "soc", }, 92 { .type = "soc", },
93 { .compatible = "soc", }, 93 { .compatible = "soc", },
94 { .compatible = "simple-bus", },
94 {}, 95 {},
95}; 96};
96 97
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
index ba498d6f2d02..d17807a6b89a 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
@@ -230,6 +230,7 @@ static struct of_device_id __initdata of_bus_ids[] = {
230 { .type = "soc", }, 230 { .type = "soc", },
231 { .name = "cpm", }, 231 { .name = "cpm", },
232 { .name = "localbus", }, 232 { .name = "localbus", },
233 { .compatible = "simple-bus", },
233 {}, 234 {},
234}; 235};
235 236
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 00c535806647..483b65cbabae 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -186,6 +186,7 @@ static int __init mpc8544_ds_probe(void)
186static struct of_device_id __initdata mpc85xxds_ids[] = { 186static struct of_device_id __initdata mpc85xxds_ids[] = {
187 { .type = "soc", }, 187 { .type = "soc", },
188 { .compatible = "soc", }, 188 { .compatible = "soc", },
189 { .compatible = "simple-bus", },
189 {}, 190 {},
190}; 191};
191 192
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 43a459f63e31..2494c5155919 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -260,6 +260,7 @@ machine_arch_initcall(mpc85xx_mds, board_fixups);
260static struct of_device_id mpc85xx_ids[] = { 260static struct of_device_id mpc85xx_ids[] = {
261 { .type = "soc", }, 261 { .type = "soc", },
262 { .compatible = "soc", }, 262 { .compatible = "soc", },
263 { .compatible = "simple-bus", },
263 { .type = "qe", }, 264 { .type = "qe", },
264 { .compatible = "fsl,qe", }, 265 { .compatible = "fsl,qe", },
265 {}, 266 {},
diff --git a/arch/powerpc/platforms/85xx/sbc8560.c b/arch/powerpc/platforms/85xx/sbc8560.c
index 2c580cd24e4f..6509ade71668 100644
--- a/arch/powerpc/platforms/85xx/sbc8560.c
+++ b/arch/powerpc/platforms/85xx/sbc8560.c
@@ -217,6 +217,7 @@ static struct of_device_id __initdata of_bus_ids[] = {
217 { .type = "soc", }, 217 { .type = "soc", },
218 { .name = "cpm", }, 218 { .name = "cpm", },
219 { .name = "localbus", }, 219 { .name = "localbus", },
220 { .compatible = "simple-bus", },
220 {}, 221 {},
221}; 222};
222 223
diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index 6fc849e51e48..71d7562e190b 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -105,6 +105,16 @@ config 8xx_COPYBACK
105 105
106 If in doubt, say Y here. 106 If in doubt, say Y here.
107 107
108config 8xx_GPIO
109 bool "GPIO API Support"
110 select GENERIC_GPIO
111 select ARCH_REQUIRE_GPIOLIB
112 help
113 Saying Y here will cause the ports on an MPC8xx processor to be used
114 with the GPIO API. If you say N here, the kernel needs less memory.
115
116 If in doubt, say Y here.
117
108config 8xx_CPU6 118config 8xx_CPU6
109 bool "CPU6 Silicon Errata (860 Pre Rev. C)" 119 bool "CPU6 Silicon Errata (860 Pre Rev. C)"
110 help 120 help
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 1d0968775c0a..4c900efa164e 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -254,6 +254,8 @@ config CPM2
254 select CPM 254 select CPM
255 select PPC_LIB_RHEAP 255 select PPC_LIB_RHEAP
256 select PPC_PCI_CHOICE 256 select PPC_PCI_CHOICE
257 select ARCH_REQUIRE_GPIOLIB
258 select GENERIC_GPIO
257 help 259 help
258 The CPM2 (Communications Processor Module) is a coprocessor on 260 The CPM2 (Communications Processor Module) is a coprocessor on
259 embedded CPUs made by Freescale. Selecting this option means that 261 embedded CPUs made by Freescale. Selecting this option means that
@@ -281,6 +283,7 @@ config FSL_ULI1575
281 283
282config CPM 284config CPM
283 bool 285 bool
286 select PPC_CLOCK
284 287
285config OF_RTC 288config OF_RTC
286 bool 289 bool
diff --git a/arch/powerpc/sysdev/cpm1.c b/arch/powerpc/sysdev/cpm1.c
index 661df42830b9..4a04823e8423 100644
--- a/arch/powerpc/sysdev/cpm1.c
+++ b/arch/powerpc/sysdev/cpm1.c
@@ -30,6 +30,7 @@
30#include <linux/interrupt.h> 30#include <linux/interrupt.h>
31#include <linux/irq.h> 31#include <linux/irq.h>
32#include <linux/module.h> 32#include <linux/module.h>
33#include <linux/spinlock.h>
33#include <asm/page.h> 34#include <asm/page.h>
34#include <asm/pgtable.h> 35#include <asm/pgtable.h>
35#include <asm/8xx_immap.h> 36#include <asm/8xx_immap.h>
@@ -42,6 +43,10 @@
42 43
43#include <asm/fs_pd.h> 44#include <asm/fs_pd.h>
44 45
46#ifdef CONFIG_8xx_GPIO
47#include <linux/of_gpio.h>
48#endif
49
45#define CPM_MAP_SIZE (0x4000) 50#define CPM_MAP_SIZE (0x4000)
46 51
47cpm8xx_t __iomem *cpmp; /* Pointer to comm processor space */ 52cpm8xx_t __iomem *cpmp; /* Pointer to comm processor space */
@@ -290,20 +295,24 @@ struct cpm_ioport16 {
290 __be16 res[3]; 295 __be16 res[3];
291}; 296};
292 297
293struct cpm_ioport32 { 298struct cpm_ioport32b {
294 __be32 dir, par, sor; 299 __be32 dir, par, odr, dat;
300};
301
302struct cpm_ioport32e {
303 __be32 dir, par, sor, odr, dat;
295}; 304};
296 305
297static void cpm1_set_pin32(int port, int pin, int flags) 306static void cpm1_set_pin32(int port, int pin, int flags)
298{ 307{
299 struct cpm_ioport32 __iomem *iop; 308 struct cpm_ioport32e __iomem *iop;
300 pin = 1 << (31 - pin); 309 pin = 1 << (31 - pin);
301 310
302 if (port == CPM_PORTB) 311 if (port == CPM_PORTB)
303 iop = (struct cpm_ioport32 __iomem *) 312 iop = (struct cpm_ioport32e __iomem *)
304 &mpc8xx_immr->im_cpm.cp_pbdir; 313 &mpc8xx_immr->im_cpm.cp_pbdir;
305 else 314 else
306 iop = (struct cpm_ioport32 __iomem *) 315 iop = (struct cpm_ioport32e __iomem *)
307 &mpc8xx_immr->im_cpm.cp_pedir; 316 &mpc8xx_immr->im_cpm.cp_pedir;
308 317
309 if (flags & CPM_PIN_OUTPUT) 318 if (flags & CPM_PIN_OUTPUT)
@@ -498,3 +507,251 @@ int cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode)
498 507
499 return 0; 508 return 0;
500} 509}
510
511/*
512 * GPIO LIB API implementation
513 */
514#ifdef CONFIG_8xx_GPIO
515
516struct cpm1_gpio16_chip {
517 struct of_mm_gpio_chip mm_gc;
518 spinlock_t lock;
519
520 /* shadowed data register to clear/set bits safely */
521 u16 cpdata;
522};
523
524static inline struct cpm1_gpio16_chip *
525to_cpm1_gpio16_chip(struct of_mm_gpio_chip *mm_gc)
526{
527 return container_of(mm_gc, struct cpm1_gpio16_chip, mm_gc);
528}
529
530static void cpm1_gpio16_save_regs(struct of_mm_gpio_chip *mm_gc)
531{
532 struct cpm1_gpio16_chip *cpm1_gc = to_cpm1_gpio16_chip(mm_gc);
533 struct cpm_ioport16 __iomem *iop = mm_gc->regs;
534
535 cpm1_gc->cpdata = in_be16(&iop->dat);
536}
537
538static int cpm1_gpio16_get(struct gpio_chip *gc, unsigned int gpio)
539{
540 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
541 struct cpm_ioport16 __iomem *iop = mm_gc->regs;
542 u16 pin_mask;
543
544 pin_mask = 1 << (15 - gpio);
545
546 return !!(in_be16(&iop->dat) & pin_mask);
547}
548
549static void cpm1_gpio16_set(struct gpio_chip *gc, unsigned int gpio, int value)
550{
551 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
552 struct cpm1_gpio16_chip *cpm1_gc = to_cpm1_gpio16_chip(mm_gc);
553 struct cpm_ioport16 __iomem *iop = mm_gc->regs;
554 unsigned long flags;
555 u16 pin_mask = 1 << (15 - gpio);
556
557 spin_lock_irqsave(&cpm1_gc->lock, flags);
558
559 if (value)
560 cpm1_gc->cpdata |= pin_mask;
561 else
562 cpm1_gc->cpdata &= ~pin_mask;
563
564 out_be16(&iop->dat, cpm1_gc->cpdata);
565
566 spin_unlock_irqrestore(&cpm1_gc->lock, flags);
567}
568
569static int cpm1_gpio16_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
570{
571 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
572 struct cpm_ioport16 __iomem *iop = mm_gc->regs;
573 u16 pin_mask;
574
575 pin_mask = 1 << (15 - gpio);
576
577 setbits16(&iop->dir, pin_mask);
578
579 cpm1_gpio16_set(gc, gpio, val);
580
581 return 0;
582}
583
584static int cpm1_gpio16_dir_in(struct gpio_chip *gc, unsigned int gpio)
585{
586 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
587 struct cpm_ioport16 __iomem *iop = mm_gc->regs;
588 u16 pin_mask;
589
590 pin_mask = 1 << (15 - gpio);
591
592 clrbits16(&iop->dir, pin_mask);
593
594 return 0;
595}
596
597int cpm1_gpiochip_add16(struct device_node *np)
598{
599 struct cpm1_gpio16_chip *cpm1_gc;
600 struct of_mm_gpio_chip *mm_gc;
601 struct of_gpio_chip *of_gc;
602 struct gpio_chip *gc;
603
604 cpm1_gc = kzalloc(sizeof(*cpm1_gc), GFP_KERNEL);
605 if (!cpm1_gc)
606 return -ENOMEM;
607
608 spin_lock_init(&cpm1_gc->lock);
609
610 mm_gc = &cpm1_gc->mm_gc;
611 of_gc = &mm_gc->of_gc;
612 gc = &of_gc->gc;
613
614 mm_gc->save_regs = cpm1_gpio16_save_regs;
615 of_gc->gpio_cells = 2;
616 gc->ngpio = 16;
617 gc->direction_input = cpm1_gpio16_dir_in;
618 gc->direction_output = cpm1_gpio16_dir_out;
619 gc->get = cpm1_gpio16_get;
620 gc->set = cpm1_gpio16_set;
621
622 return of_mm_gpiochip_add(np, mm_gc);
623}
624
625struct cpm1_gpio32_chip {
626 struct of_mm_gpio_chip mm_gc;
627 spinlock_t lock;
628
629 /* shadowed data register to clear/set bits safely */
630 u32 cpdata;
631};
632
633static inline struct cpm1_gpio32_chip *
634to_cpm1_gpio32_chip(struct of_mm_gpio_chip *mm_gc)
635{
636 return container_of(mm_gc, struct cpm1_gpio32_chip, mm_gc);
637}
638
639static void cpm1_gpio32_save_regs(struct of_mm_gpio_chip *mm_gc)
640{
641 struct cpm1_gpio32_chip *cpm1_gc = to_cpm1_gpio32_chip(mm_gc);
642 struct cpm_ioport32b __iomem *iop = mm_gc->regs;
643
644 cpm1_gc->cpdata = in_be32(&iop->dat);
645}
646
647static int cpm1_gpio32_get(struct gpio_chip *gc, unsigned int gpio)
648{
649 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
650 struct cpm_ioport32b __iomem *iop = mm_gc->regs;
651 u32 pin_mask;
652
653 pin_mask = 1 << (31 - gpio);
654
655 return !!(in_be32(&iop->dat) & pin_mask);
656}
657
658static void cpm1_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
659{
660 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
661 struct cpm1_gpio32_chip *cpm1_gc = to_cpm1_gpio32_chip(mm_gc);
662 struct cpm_ioport32b __iomem *iop = mm_gc->regs;
663 unsigned long flags;
664 u32 pin_mask = 1 << (31 - gpio);
665
666 spin_lock_irqsave(&cpm1_gc->lock, flags);
667
668 if (value)
669 cpm1_gc->cpdata |= pin_mask;
670 else
671 cpm1_gc->cpdata &= ~pin_mask;
672
673 out_be32(&iop->dat, cpm1_gc->cpdata);
674
675 spin_unlock_irqrestore(&cpm1_gc->lock, flags);
676}
677
678static int cpm1_gpio32_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
679{
680 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
681 struct cpm_ioport32b __iomem *iop = mm_gc->regs;
682 u32 pin_mask;
683
684 pin_mask = 1 << (31 - gpio);
685
686 setbits32(&iop->dir, pin_mask);
687
688 cpm1_gpio32_set(gc, gpio, val);
689
690 return 0;
691}
692
693static int cpm1_gpio32_dir_in(struct gpio_chip *gc, unsigned int gpio)
694{
695 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
696 struct cpm_ioport32b __iomem *iop = mm_gc->regs;
697 u32 pin_mask;
698
699 pin_mask = 1 << (31 - gpio);
700
701 clrbits32(&iop->dir, pin_mask);
702
703 return 0;
704}
705
706int cpm1_gpiochip_add32(struct device_node *np)
707{
708 struct cpm1_gpio32_chip *cpm1_gc;
709 struct of_mm_gpio_chip *mm_gc;
710 struct of_gpio_chip *of_gc;
711 struct gpio_chip *gc;
712
713 cpm1_gc = kzalloc(sizeof(*cpm1_gc), GFP_KERNEL);
714 if (!cpm1_gc)
715 return -ENOMEM;
716
717 spin_lock_init(&cpm1_gc->lock);
718
719 mm_gc = &cpm1_gc->mm_gc;
720 of_gc = &mm_gc->of_gc;
721 gc = &of_gc->gc;
722
723 mm_gc->save_regs = cpm1_gpio32_save_regs;
724 of_gc->gpio_cells = 2;
725 gc->ngpio = 32;
726 gc->direction_input = cpm1_gpio32_dir_in;
727 gc->direction_output = cpm1_gpio32_dir_out;
728 gc->get = cpm1_gpio32_get;
729 gc->set = cpm1_gpio32_set;
730
731 return of_mm_gpiochip_add(np, mm_gc);
732}
733
734static int cpm_init_par_io(void)
735{
736 struct device_node *np;
737
738 for_each_compatible_node(np, NULL, "fsl,cpm1-pario-bank-a")
739 cpm1_gpiochip_add16(np);
740
741 for_each_compatible_node(np, NULL, "fsl,cpm1-pario-bank-b")
742 cpm1_gpiochip_add32(np);
743
744 for_each_compatible_node(np, NULL, "fsl,cpm1-pario-bank-c")
745 cpm1_gpiochip_add16(np);
746
747 for_each_compatible_node(np, NULL, "fsl,cpm1-pario-bank-d")
748 cpm1_gpiochip_add16(np);
749
750 /* Port E uses CPM2 layout */
751 for_each_compatible_node(np, NULL, "fsl,cpm1-pario-bank-e")
752 cpm2_gpiochip_add32(np);
753 return 0;
754}
755arch_initcall(cpm_init_par_io);
756
757#endif /* CONFIG_8xx_GPIO */
diff --git a/arch/powerpc/sysdev/cpm2.c b/arch/powerpc/sysdev/cpm2.c
index 5a6c5dfc53ef..f1c3395633b9 100644
--- a/arch/powerpc/sysdev/cpm2.c
+++ b/arch/powerpc/sysdev/cpm2.c
@@ -115,16 +115,10 @@ EXPORT_SYMBOL(cpm_command);
115 * Baud rate clocks are zero-based in the driver code (as that maps 115 * Baud rate clocks are zero-based in the driver code (as that maps
116 * to port numbers). Documentation uses 1-based numbering. 116 * to port numbers). Documentation uses 1-based numbering.
117 */ 117 */
118#define BRG_INT_CLK (get_brgfreq()) 118void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src)
119#define BRG_UART_CLK (BRG_INT_CLK/16)
120
121/* This function is used by UARTS, or anything else that uses a 16x
122 * oversampled clock.
123 */
124void
125cpm_setbrg(uint brg, uint rate)
126{ 119{
127 u32 __iomem *bp; 120 u32 __iomem *bp;
121 u32 val;
128 122
129 /* This is good enough to get SMCs running..... 123 /* This is good enough to get SMCs running.....
130 */ 124 */
@@ -135,34 +129,14 @@ cpm_setbrg(uint brg, uint rate)
135 brg -= 4; 129 brg -= 4;
136 } 130 }
137 bp += brg; 131 bp += brg;
138 out_be32(bp, (((BRG_UART_CLK / rate) - 1) << 1) | CPM_BRG_EN); 132 val = (((clk / rate) - 1) << 1) | CPM_BRG_EN | src;
139
140 cpm2_unmap(bp);
141}
142
143/* This function is used to set high speed synchronous baud rate
144 * clocks.
145 */
146void
147cpm2_fastbrg(uint brg, uint rate, int div16)
148{
149 u32 __iomem *bp;
150 u32 val;
151
152 if (brg < 4) {
153 bp = cpm2_map_size(im_brgc1, 16);
154 } else {
155 bp = cpm2_map_size(im_brgc5, 16);
156 brg -= 4;
157 }
158 bp += brg;
159 val = ((BRG_INT_CLK / rate) << 1) | CPM_BRG_EN;
160 if (div16) 133 if (div16)
161 val |= CPM_BRG_DIV16; 134 val |= CPM_BRG_DIV16;
162 135
163 out_be32(bp, val); 136 out_be32(bp, val);
164 cpm2_unmap(bp); 137 cpm2_unmap(bp);
165} 138}
139EXPORT_SYMBOL(__cpm2_setbrg);
166 140
167int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode) 141int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
168{ 142{
@@ -377,3 +351,14 @@ void cpm2_set_pin(int port, int pin, int flags)
377 else 351 else
378 clrbits32(&iop[port].odr, pin); 352 clrbits32(&iop[port].odr, pin);
379} 353}
354
355static int cpm_init_par_io(void)
356{
357 struct device_node *np;
358
359 for_each_compatible_node(np, NULL, "fsl,cpm2-pario-bank")
360 cpm2_gpiochip_add32(np);
361 return 0;
362}
363arch_initcall(cpm_init_par_io);
364
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index e4b7296acb2c..53da8a079f96 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -19,6 +19,8 @@
19 19
20#include <linux/init.h> 20#include <linux/init.h>
21#include <linux/of_device.h> 21#include <linux/of_device.h>
22#include <linux/spinlock.h>
23#include <linux/of.h>
22 24
23#include <asm/udbg.h> 25#include <asm/udbg.h>
24#include <asm/io.h> 26#include <asm/io.h>
@@ -28,6 +30,10 @@
28 30
29#include <mm/mmu_decl.h> 31#include <mm/mmu_decl.h>
30 32
33#if defined(CONFIG_CPM2) || defined(CONFIG_8xx_GPIO)
34#include <linux/of_gpio.h>
35#endif
36
31#ifdef CONFIG_PPC_EARLY_DEBUG_CPM 37#ifdef CONFIG_PPC_EARLY_DEBUG_CPM
32static u32 __iomem *cpm_udbg_txdesc = 38static u32 __iomem *cpm_udbg_txdesc =
33 (u32 __iomem __force *)CONFIG_PPC_EARLY_DEBUG_CPM_ADDR; 39 (u32 __iomem __force *)CONFIG_PPC_EARLY_DEBUG_CPM_ADDR;
@@ -207,3 +213,120 @@ dma_addr_t cpm_muram_dma(void __iomem *addr)
207 return muram_pbase + ((u8 __iomem *)addr - muram_vbase); 213 return muram_pbase + ((u8 __iomem *)addr - muram_vbase);
208} 214}
209EXPORT_SYMBOL(cpm_muram_dma); 215EXPORT_SYMBOL(cpm_muram_dma);
216
217#if defined(CONFIG_CPM2) || defined(CONFIG_8xx_GPIO)
218
219struct cpm2_ioports {
220 u32 dir, par, sor, odr, dat;
221 u32 res[3];
222};
223
224struct cpm2_gpio32_chip {
225 struct of_mm_gpio_chip mm_gc;
226 spinlock_t lock;
227
228 /* shadowed data register to clear/set bits safely */
229 u32 cpdata;
230};
231
232static inline struct cpm2_gpio32_chip *
233to_cpm2_gpio32_chip(struct of_mm_gpio_chip *mm_gc)
234{
235 return container_of(mm_gc, struct cpm2_gpio32_chip, mm_gc);
236}
237
238static void cpm2_gpio32_save_regs(struct of_mm_gpio_chip *mm_gc)
239{
240 struct cpm2_gpio32_chip *cpm2_gc = to_cpm2_gpio32_chip(mm_gc);
241 struct cpm2_ioports __iomem *iop = mm_gc->regs;
242
243 cpm2_gc->cpdata = in_be32(&iop->dat);
244}
245
246static int cpm2_gpio32_get(struct gpio_chip *gc, unsigned int gpio)
247{
248 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
249 struct cpm2_ioports __iomem *iop = mm_gc->regs;
250 u32 pin_mask;
251
252 pin_mask = 1 << (31 - gpio);
253
254 return !!(in_be32(&iop->dat) & pin_mask);
255}
256
257static void cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
258{
259 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
260 struct cpm2_gpio32_chip *cpm2_gc = to_cpm2_gpio32_chip(mm_gc);
261 struct cpm2_ioports __iomem *iop = mm_gc->regs;
262 unsigned long flags;
263 u32 pin_mask = 1 << (31 - gpio);
264
265 spin_lock_irqsave(&cpm2_gc->lock, flags);
266
267 if (value)
268 cpm2_gc->cpdata |= pin_mask;
269 else
270 cpm2_gc->cpdata &= ~pin_mask;
271
272 out_be32(&iop->dat, cpm2_gc->cpdata);
273
274 spin_unlock_irqrestore(&cpm2_gc->lock, flags);
275}
276
277static int cpm2_gpio32_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
278{
279 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
280 struct cpm2_ioports __iomem *iop = mm_gc->regs;
281 u32 pin_mask;
282
283 pin_mask = 1 << (31 - gpio);
284
285 setbits32(&iop->dir, pin_mask);
286
287 cpm2_gpio32_set(gc, gpio, val);
288
289 return 0;
290}
291
292static int cpm2_gpio32_dir_in(struct gpio_chip *gc, unsigned int gpio)
293{
294 struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
295 struct cpm2_ioports __iomem *iop = mm_gc->regs;
296 u32 pin_mask;
297
298 pin_mask = 1 << (31 - gpio);
299
300 clrbits32(&iop->dir, pin_mask);
301
302 return 0;
303}
304
305int cpm2_gpiochip_add32(struct device_node *np)
306{
307 struct cpm2_gpio32_chip *cpm2_gc;
308 struct of_mm_gpio_chip *mm_gc;
309 struct of_gpio_chip *of_gc;
310 struct gpio_chip *gc;
311
312 cpm2_gc = kzalloc(sizeof(*cpm2_gc), GFP_KERNEL);
313 if (!cpm2_gc)
314 return -ENOMEM;
315
316 spin_lock_init(&cpm2_gc->lock);
317
318 mm_gc = &cpm2_gc->mm_gc;
319 of_gc = &mm_gc->of_gc;
320 gc = &of_gc->gc;
321
322 mm_gc->save_regs = cpm2_gpio32_save_regs;
323 of_gc->gpio_cells = 2;
324 gc->ngpio = 32;
325 gc->direction_input = cpm2_gpio32_dir_in;
326 gc->direction_output = cpm2_gpio32_dir_out;
327 gc->get = cpm2_gpio32_get;
328 gc->set = cpm2_gpio32_set;
329
330 return of_mm_gpiochip_add(np, mm_gc);
331}
332#endif /* CONFIG_CPM2 || CONFIG_8xx_GPIO */
diff --git a/arch/powerpc/sysdev/rtc_cmos_setup.c b/arch/powerpc/sysdev/rtc_cmos_setup.c
index c09ddc0dbeb3..c1879ebfd4f4 100644
--- a/arch/powerpc/sysdev/rtc_cmos_setup.c
+++ b/arch/powerpc/sysdev/rtc_cmos_setup.c
@@ -21,6 +21,7 @@ static int __init add_rtc(void)
21 struct device_node *np; 21 struct device_node *np;
22 struct platform_device *pd; 22 struct platform_device *pd;
23 struct resource res[2]; 23 struct resource res[2];
24 unsigned int num_res = 1;
24 int ret; 25 int ret;
25 26
26 memset(&res, 0, sizeof(res)); 27 memset(&res, 0, sizeof(res));
@@ -41,14 +42,24 @@ static int __init add_rtc(void)
41 if (res[0].start != RTC_PORT(0)) 42 if (res[0].start != RTC_PORT(0))
42 return -EINVAL; 43 return -EINVAL;
43 44
44 /* Use a fixed interrupt value of 8 since on PPC if we are using this 45 np = of_find_compatible_node(NULL, NULL, "chrp,iic");
45 * its off an i8259 which we ensure has interrupt numbers 0..15. */ 46 if (!np)
46 res[1].start = 8; 47 np = of_find_compatible_node(NULL, NULL, "pnpPNP,000");
47 res[1].end = 8; 48 if (np) {
48 res[1].flags = IORESOURCE_IRQ; 49 of_node_put(np);
50 /*
51 * Use a fixed interrupt value of 8 since on PPC if we are
52 * using this its off an i8259 which we ensure has interrupt
53 * numbers 0..15.
54 */
55 res[1].start = 8;
56 res[1].end = 8;
57 res[1].flags = IORESOURCE_IRQ;
58 num_res++;
59 }
49 60
50 pd = platform_device_register_simple("rtc_cmos", -1, 61 pd = platform_device_register_simple("rtc_cmos", -1,
51 &res[0], 2); 62 &res[0], num_res);
52 63
53 if (IS_ERR(pd)) 64 if (IS_ERR(pd))
54 return PTR_ERR(pd); 65 return PTR_ERR(pd);
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 192688344ed2..f52931e1c16e 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -66,8 +66,8 @@
66#include <linux/ctype.h> 66#include <linux/ctype.h>
67 67
68#ifdef CONFIG_PPC_OF 68#ifdef CONFIG_PPC_OF
69#include <asm/of_device.h> 69#include <linux/of_device.h>
70#include <asm/of_platform.h> 70#include <linux/of_platform.h>
71#endif 71#endif
72 72
73#define PFX "ipmi_si: " 73#define PFX "ipmi_si: "
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index c521bf6e1bf2..fa2be26272d5 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1086,6 +1086,11 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw)
1086 /* Make sure we have sane timings */ 1086 /* Make sure we have sane timings */
1087 sanitize_timings(pmif); 1087 sanitize_timings(pmif);
1088 1088
1089 host = ide_host_alloc(&d, hws);
1090 if (host == NULL)
1091 return -ENOMEM;
1092 hwif = host->ports[0];
1093
1089#ifndef CONFIG_PPC64 1094#ifndef CONFIG_PPC64
1090 /* XXX FIXME: Media bay stuff need re-organizing */ 1095 /* XXX FIXME: Media bay stuff need re-organizing */
1091 if (np->parent && np->parent->name 1096 if (np->parent && np->parent->name
@@ -1119,11 +1124,11 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw)
1119 pmif->mdev ? "macio" : "PCI", pmif->aapl_bus_id, 1124 pmif->mdev ? "macio" : "PCI", pmif->aapl_bus_id,
1120 pmif->mediabay ? " (mediabay)" : "", hw->irq); 1125 pmif->mediabay ? " (mediabay)" : "", hw->irq);
1121 1126
1122 rc = ide_host_add(&d, hws, &host); 1127 rc = ide_host_register(host, &d, hws);
1123 if (rc) 1128 if (rc) {
1129 ide_host_free(host);
1124 return rc; 1130 return rc;
1125 1131 }
1126 hwif = host->ports[0];
1127 1132
1128 return 0; 1133 return 0;
1129} 1134}
diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h
index 5c76e0ae0582..7274b527a3c1 100644
--- a/drivers/serial/cpm_uart/cpm_uart.h
+++ b/drivers/serial/cpm_uart/cpm_uart.h
@@ -50,6 +50,15 @@
50 50
51#define SCC_WAIT_CLOSING 100 51#define SCC_WAIT_CLOSING 100
52 52
53#define GPIO_CTS 0
54#define GPIO_RTS 1
55#define GPIO_DCD 2
56#define GPIO_DSR 3
57#define GPIO_DTR 4
58#define GPIO_RI 5
59
60#define NUM_GPIOS (GPIO_RI+1)
61
53struct uart_cpm_port { 62struct uart_cpm_port {
54 struct uart_port port; 63 struct uart_port port;
55 u16 rx_nrfifos; 64 u16 rx_nrfifos;
@@ -68,6 +77,7 @@ struct uart_cpm_port {
68 unsigned char *rx_buf; 77 unsigned char *rx_buf;
69 u32 flags; 78 u32 flags;
70 void (*set_lineif)(struct uart_cpm_port *); 79 void (*set_lineif)(struct uart_cpm_port *);
80 struct clk *clk;
71 u8 brg; 81 u8 brg;
72 uint dp_addr; 82 uint dp_addr;
73 void *mem_addr; 83 void *mem_addr;
@@ -82,6 +92,7 @@ struct uart_cpm_port {
82 int wait_closing; 92 int wait_closing;
83 /* value to combine with opcode to form cpm command */ 93 /* value to combine with opcode to form cpm command */
84 u32 command; 94 u32 command;
95 int gpios[NUM_GPIOS];
85}; 96};
86 97
87extern int cpm_uart_nr; 98extern int cpm_uart_nr;
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index a4f86927a74b..25efca5a7a1f 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -43,6 +43,9 @@
43#include <linux/dma-mapping.h> 43#include <linux/dma-mapping.h>
44#include <linux/fs_uart_pd.h> 44#include <linux/fs_uart_pd.h>
45#include <linux/of_platform.h> 45#include <linux/of_platform.h>
46#include <linux/gpio.h>
47#include <linux/of_gpio.h>
48#include <linux/clk.h>
46 49
47#include <asm/io.h> 50#include <asm/io.h>
48#include <asm/irq.h> 51#include <asm/irq.h>
@@ -96,13 +99,41 @@ static unsigned int cpm_uart_tx_empty(struct uart_port *port)
96 99
97static void cpm_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) 100static void cpm_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
98{ 101{
99 /* Whee. Do nothing. */ 102 struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
103
104 if (pinfo->gpios[GPIO_RTS] >= 0)
105 gpio_set_value(pinfo->gpios[GPIO_RTS], !(mctrl & TIOCM_RTS));
106
107 if (pinfo->gpios[GPIO_DTR] >= 0)
108 gpio_set_value(pinfo->gpios[GPIO_DTR], !(mctrl & TIOCM_DTR));
100} 109}
101 110
102static unsigned int cpm_uart_get_mctrl(struct uart_port *port) 111static unsigned int cpm_uart_get_mctrl(struct uart_port *port)
103{ 112{
104 /* Whee. Do nothing. */ 113 struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
105 return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS; 114 unsigned int mctrl = TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
115
116 if (pinfo->gpios[GPIO_CTS] >= 0) {
117 if (gpio_get_value(pinfo->gpios[GPIO_CTS]))
118 mctrl &= ~TIOCM_CTS;
119 }
120
121 if (pinfo->gpios[GPIO_DSR] >= 0) {
122 if (gpio_get_value(pinfo->gpios[GPIO_DSR]))
123 mctrl &= ~TIOCM_DSR;
124 }
125
126 if (pinfo->gpios[GPIO_DCD] >= 0) {
127 if (gpio_get_value(pinfo->gpios[GPIO_DCD]))
128 mctrl &= ~TIOCM_CAR;
129 }
130
131 if (pinfo->gpios[GPIO_RI] >= 0) {
132 if (!gpio_get_value(pinfo->gpios[GPIO_RI]))
133 mctrl |= TIOCM_RNG;
134 }
135
136 return mctrl;
106} 137}
107 138
108/* 139/*
@@ -566,7 +597,10 @@ static void cpm_uart_set_termios(struct uart_port *port,
566 out_be16(&sccp->scc_psmr, (sbits << 12) | scval); 597 out_be16(&sccp->scc_psmr, (sbits << 12) | scval);
567 } 598 }
568 599
569 cpm_set_brg(pinfo->brg - 1, baud); 600 if (pinfo->clk)
601 clk_set_rate(pinfo->clk, baud);
602 else
603 cpm_set_brg(pinfo->brg - 1, baud);
570 spin_unlock_irqrestore(&port->lock, flags); 604 spin_unlock_irqrestore(&port->lock, flags);
571} 605}
572 606
@@ -991,14 +1025,23 @@ static int cpm_uart_init_port(struct device_node *np,
991 void __iomem *mem, *pram; 1025 void __iomem *mem, *pram;
992 int len; 1026 int len;
993 int ret; 1027 int ret;
1028 int i;
994 1029
995 data = of_get_property(np, "fsl,cpm-brg", &len); 1030 data = of_get_property(np, "clock", NULL);
996 if (!data || len != 4) { 1031 if (data) {
997 printk(KERN_ERR "CPM UART %s has no/invalid " 1032 struct clk *clk = clk_get(NULL, (const char*)data);
998 "fsl,cpm-brg property.\n", np->name); 1033 if (!IS_ERR(clk))
999 return -EINVAL; 1034 pinfo->clk = clk;
1035 }
1036 if (!pinfo->clk) {
1037 data = of_get_property(np, "fsl,cpm-brg", &len);
1038 if (!data || len != 4) {
1039 printk(KERN_ERR "CPM UART %s has no/invalid "
1040 "fsl,cpm-brg property.\n", np->name);
1041 return -EINVAL;
1042 }
1043 pinfo->brg = *data;
1000 } 1044 }
1001 pinfo->brg = *data;
1002 1045
1003 data = of_get_property(np, "fsl,cpm-command", &len); 1046 data = of_get_property(np, "fsl,cpm-command", &len);
1004 if (!data || len != 4) { 1047 if (!data || len != 4) {
@@ -1050,6 +1093,9 @@ static int cpm_uart_init_port(struct device_node *np,
1050 goto out_pram; 1093 goto out_pram;
1051 } 1094 }
1052 1095
1096 for (i = 0; i < NUM_GPIOS; i++)
1097 pinfo->gpios[i] = of_get_gpio(np, i);
1098
1053 return cpm_uart_request_port(&pinfo->port); 1099 return cpm_uart_request_port(&pinfo->port);
1054 1100
1055out_pram: 1101out_pram:
diff --git a/include/asm-powerpc/cpm.h b/include/asm-powerpc/cpm.h
index 63a55337c2de..24d79e3abd8e 100644
--- a/include/asm-powerpc/cpm.h
+++ b/include/asm-powerpc/cpm.h
@@ -3,6 +3,7 @@
3 3
4#include <linux/compiler.h> 4#include <linux/compiler.h>
5#include <linux/types.h> 5#include <linux/types.h>
6#include <linux/of.h>
6 7
7/* Opcodes common to CPM1 and CPM2 8/* Opcodes common to CPM1 and CPM2
8*/ 9*/
@@ -100,4 +101,6 @@ unsigned long cpm_muram_offset(void __iomem *addr);
100dma_addr_t cpm_muram_dma(void __iomem *addr); 101dma_addr_t cpm_muram_dma(void __iomem *addr);
101int cpm_command(u32 command, u8 opcode); 102int cpm_command(u32 command, u8 opcode);
102 103
104int cpm2_gpiochip_add32(struct device_node *np);
105
103#endif 106#endif
diff --git a/include/asm-powerpc/cpm2.h b/include/asm-powerpc/cpm2.h
index 2c7fd9cee291..2a6fa0183ac9 100644
--- a/include/asm-powerpc/cpm2.h
+++ b/include/asm-powerpc/cpm2.h
@@ -12,6 +12,7 @@
12 12
13#include <asm/immap_cpm2.h> 13#include <asm/immap_cpm2.h>
14#include <asm/cpm.h> 14#include <asm/cpm.h>
15#include <sysdev/fsl_soc.h>
15 16
16#ifdef CONFIG_PPC_85xx 17#ifdef CONFIG_PPC_85xx
17#define CPM_MAP_ADDR (get_immrbase() + 0x80000) 18#define CPM_MAP_ADDR (get_immrbase() + 0x80000)
@@ -93,10 +94,40 @@ extern cpm_cpm2_t __iomem *cpmp; /* Pointer to comm processor */
93#define cpm_dpfree cpm_muram_free 94#define cpm_dpfree cpm_muram_free
94#define cpm_dpram_addr cpm_muram_addr 95#define cpm_dpram_addr cpm_muram_addr
95 96
96extern void cpm_setbrg(uint brg, uint rate);
97extern void cpm2_fastbrg(uint brg, uint rate, int div16);
98extern void cpm2_reset(void); 97extern void cpm2_reset(void);
99 98
99/* Baud rate generators.
100*/
101#define CPM_BRG_RST ((uint)0x00020000)
102#define CPM_BRG_EN ((uint)0x00010000)
103#define CPM_BRG_EXTC_INT ((uint)0x00000000)
104#define CPM_BRG_EXTC_CLK3_9 ((uint)0x00004000)
105#define CPM_BRG_EXTC_CLK5_15 ((uint)0x00008000)
106#define CPM_BRG_ATB ((uint)0x00002000)
107#define CPM_BRG_CD_MASK ((uint)0x00001ffe)
108#define CPM_BRG_DIV16 ((uint)0x00000001)
109
110#define CPM2_BRG_INT_CLK (get_brgfreq())
111#define CPM2_BRG_UART_CLK (CPM2_BRG_INT_CLK/16)
112
113extern void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src);
114
115/* This function is used by UARTS, or anything else that uses a 16x
116 * oversampled clock.
117 */
118static inline void cpm_setbrg(uint brg, uint rate)
119{
120 __cpm2_setbrg(brg, rate, CPM2_BRG_UART_CLK, 0, CPM_BRG_EXTC_INT);
121}
122
123/* This function is used to set high speed synchronous baud rate
124 * clocks.
125 */
126static inline void cpm2_fastbrg(uint brg, uint rate, int div16)
127{
128 __cpm2_setbrg(brg, rate, CPM2_BRG_INT_CLK, div16, CPM_BRG_EXTC_INT);
129}
130
100/* Function code bits, usually generic to devices. 131/* Function code bits, usually generic to devices.
101*/ 132*/
102#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */ 133#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */
@@ -195,17 +226,6 @@ typedef struct smc_uart {
195#define SMCM_TX ((unsigned char)0x02) 226#define SMCM_TX ((unsigned char)0x02)
196#define SMCM_RX ((unsigned char)0x01) 227#define SMCM_RX ((unsigned char)0x01)
197 228
198/* Baud rate generators.
199*/
200#define CPM_BRG_RST ((uint)0x00020000)
201#define CPM_BRG_EN ((uint)0x00010000)
202#define CPM_BRG_EXTC_INT ((uint)0x00000000)
203#define CPM_BRG_EXTC_CLK3_9 ((uint)0x00004000)
204#define CPM_BRG_EXTC_CLK5_15 ((uint)0x00008000)
205#define CPM_BRG_ATB ((uint)0x00002000)
206#define CPM_BRG_CD_MASK ((uint)0x00001ffe)
207#define CPM_BRG_DIV16 ((uint)0x00000001)
208
209/* SCCs. 229/* SCCs.
210*/ 230*/
211#define SCC_GSMRH_IRP ((uint)0x00040000) 231#define SCC_GSMRH_IRP ((uint)0x00040000)
diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h
index 5fc78c0be302..74c6f380b805 100644
--- a/include/asm-powerpc/pgtable-ppc64.h
+++ b/include/asm-powerpc/pgtable-ppc64.h
@@ -461,6 +461,8 @@ void pgtable_cache_init(void);
461 return pt; 461 return pt;
462} 462}
463 463
464pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long address);
465
464#endif /* __ASSEMBLY__ */ 466#endif /* __ASSEMBLY__ */
465 467
466#endif /* _ASM_POWERPC_PGTABLE_PPC64_H_ */ 468#endif /* _ASM_POWERPC_PGTABLE_PPC64_H_ */
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index a39b38ccdc97..69ed3cb1197a 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -143,6 +143,29 @@ static inline int page_cache_get_speculative(struct page *page)
143 return 1; 143 return 1;
144} 144}
145 145
146/*
147 * Same as above, but add instead of inc (could just be merged)
148 */
149static inline int page_cache_add_speculative(struct page *page, int count)
150{
151 VM_BUG_ON(in_interrupt());
152
153#if !defined(CONFIG_SMP) && defined(CONFIG_CLASSIC_RCU)
154# ifdef CONFIG_PREEMPT
155 VM_BUG_ON(!in_atomic());
156# endif
157 VM_BUG_ON(page_count(page) == 0);
158 atomic_add(count, &page->_count);
159
160#else
161 if (unlikely(!atomic_add_unless(&page->_count, count, 0)))
162 return 0;
163#endif
164 VM_BUG_ON(PageCompound(page) && page != compound_head(page));
165
166 return 1;
167}
168
146static inline int page_freeze_refs(struct page *page, int count) 169static inline int page_freeze_refs(struct page *page, int count)
147{ 170{
148 return likely(atomic_cmpxchg(&page->_count, count, 0) == count); 171 return likely(atomic_cmpxchg(&page->_count, count, 0) == count);
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-26 00:54:04 -0500