diff options
author | Jon Loeliger <jdl@jdl.com> | 2006-06-17 18:52:45 -0400 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2006-06-21 01:01:28 -0400 |
commit | 4ca4b6274c30d53d22014fb6974efe2b3e52cfdc (patch) | |
tree | f02451f8c52a056829e4bbe681f2cf3c3f4f2bf4 /arch/powerpc/platforms | |
parent | ee0339f205d60375c5ce1653c0dc318c6ec72668 (diff) |
[POWERPC] Add the MPC8641 HPCN platform files.
Signed-off-by: Xianghua Xiao <x.xiao@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Wei Zhang <Wei.Zhang@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r-- | arch/powerpc/platforms/86xx/mpc8641_hpcn.h | 54 | ||||
-rw-r--r-- | arch/powerpc/platforms/86xx/mpc86xx.h | 28 | ||||
-rw-r--r-- | arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 326 | ||||
-rw-r--r-- | arch/powerpc/platforms/86xx/mpc86xx_smp.c | 117 |
4 files changed, 525 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/86xx/mpc8641_hpcn.h b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h new file mode 100644 index 000000000000..5042253758b7 --- /dev/null +++ b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h | |||
@@ -0,0 +1,54 @@ | |||
1 | /* | ||
2 | * MPC8641 HPCN board definitions | ||
3 | * | ||
4 | * Copyright 2006 Freescale Semiconductor Inc. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify it | ||
7 | * under the terms of the GNU General Public License as published by the | ||
8 | * Free Software Foundation; either version 2 of the License, or (at your | ||
9 | * option) any later version. | ||
10 | * | ||
11 | * Author: Xianghua Xiao <x.xiao@freescale.com> | ||
12 | */ | ||
13 | |||
14 | #ifndef __MPC8641_HPCN_H__ | ||
15 | #define __MPC8641_HPCN_H__ | ||
16 | |||
17 | #include <linux/config.h> | ||
18 | #include <linux/init.h> | ||
19 | |||
20 | /* PCI interrupt controller */ | ||
21 | #define PIRQA 3 | ||
22 | #define PIRQB 4 | ||
23 | #define PIRQC 5 | ||
24 | #define PIRQD 6 | ||
25 | #define PIRQ7 7 | ||
26 | #define PIRQE 9 | ||
27 | #define PIRQF 10 | ||
28 | #define PIRQG 11 | ||
29 | #define PIRQH 12 | ||
30 | |||
31 | /* PCI-Express memory map */ | ||
32 | #define MPC86XX_PCIE_LOWER_IO 0x00000000 | ||
33 | #define MPC86XX_PCIE_UPPER_IO 0x00ffffff | ||
34 | |||
35 | #define MPC86XX_PCIE_LOWER_MEM 0x80000000 | ||
36 | #define MPC86XX_PCIE_UPPER_MEM 0x9fffffff | ||
37 | |||
38 | #define MPC86XX_PCIE_IO_BASE 0xe2000000 | ||
39 | #define MPC86XX_PCIE_MEM_OFFSET 0x00000000 | ||
40 | |||
41 | #define MPC86XX_PCIE_IO_SIZE 0x01000000 | ||
42 | |||
43 | #define PCIE1_CFG_ADDR_OFFSET (0x8000) | ||
44 | #define PCIE1_CFG_DATA_OFFSET (0x8004) | ||
45 | |||
46 | #define PCIE2_CFG_ADDR_OFFSET (0x9000) | ||
47 | #define PCIE2_CFG_DATA_OFFSET (0x9004) | ||
48 | |||
49 | #define MPC86xx_PCIE_OFFSET PCIE1_CFG_ADDR_OFFSET | ||
50 | #define MPC86xx_PCIE_SIZE (0x1000) | ||
51 | |||
52 | #define MPC86XX_RSTCR_OFFSET (0xe00b0) /* Reset Control Register */ | ||
53 | |||
54 | #endif /* __MPC8641_HPCN_H__ */ | ||
diff --git a/arch/powerpc/platforms/86xx/mpc86xx.h b/arch/powerpc/platforms/86xx/mpc86xx.h new file mode 100644 index 000000000000..e3c9e4f417d3 --- /dev/null +++ b/arch/powerpc/platforms/86xx/mpc86xx.h | |||
@@ -0,0 +1,28 @@ | |||
1 | /* | ||
2 | * Copyright 2006 Freescale Semiconductor Inc. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms of the GNU General Public License as published by the | ||
6 | * Free Software Foundation; either version 2 of the License, or (at your | ||
7 | * option) any later version. | ||
8 | */ | ||
9 | |||
10 | #ifndef __MPC86XX_H__ | ||
11 | #define __MPC86XX_H__ | ||
12 | |||
13 | /* | ||
14 | * Declaration for the various functions exported by the | ||
15 | * mpc86xx_* files. Mostly for use by mpc86xx_setup(). | ||
16 | */ | ||
17 | |||
18 | extern int __init add_bridge(struct device_node *dev); | ||
19 | |||
20 | extern void __init setup_indirect_pcie(struct pci_controller *hose, | ||
21 | u32 cfg_addr, u32 cfg_data); | ||
22 | extern void __init setup_indirect_pcie_nomap(struct pci_controller *hose, | ||
23 | void __iomem *cfg_addr, | ||
24 | void __iomem *cfg_data); | ||
25 | |||
26 | extern void __init mpc86xx_smp_init(void); | ||
27 | |||
28 | #endif /* __MPC86XX_H__ */ | ||
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c new file mode 100644 index 000000000000..483c21df181e --- /dev/null +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | |||
@@ -0,0 +1,326 @@ | |||
1 | /* | ||
2 | * MPC86xx HPCN board specific routines | ||
3 | * | ||
4 | * Recode: ZHANG WEI <wei.zhang@freescale.com> | ||
5 | * Initial author: Xianghua Xiao <x.xiao@freescale.com> | ||
6 | * | ||
7 | * Copyright 2006 Freescale Semiconductor Inc. | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify it | ||
10 | * under the terms of the GNU General Public License as published by the | ||
11 | * Free Software Foundation; either version 2 of the License, or (at your | ||
12 | * option) any later version. | ||
13 | */ | ||
14 | |||
15 | #include <linux/config.h> | ||
16 | #include <linux/stddef.h> | ||
17 | #include <linux/kernel.h> | ||
18 | #include <linux/pci.h> | ||
19 | #include <linux/kdev_t.h> | ||
20 | #include <linux/delay.h> | ||
21 | #include <linux/seq_file.h> | ||
22 | #include <linux/root_dev.h> | ||
23 | |||
24 | #include <asm/system.h> | ||
25 | #include <asm/time.h> | ||
26 | #include <asm/machdep.h> | ||
27 | #include <asm/pci-bridge.h> | ||
28 | #include <asm/mpc86xx.h> | ||
29 | #include <asm/prom.h> | ||
30 | #include <mm/mmu_decl.h> | ||
31 | #include <asm/udbg.h> | ||
32 | #include <asm/i8259.h> | ||
33 | |||
34 | #include <asm/mpic.h> | ||
35 | |||
36 | #include <sysdev/fsl_soc.h> | ||
37 | |||
38 | #include "mpc86xx.h" | ||
39 | |||
40 | #ifndef CONFIG_PCI | ||
41 | unsigned long isa_io_base = 0; | ||
42 | unsigned long isa_mem_base = 0; | ||
43 | unsigned long pci_dram_offset = 0; | ||
44 | #endif | ||
45 | |||
46 | |||
47 | /* | ||
48 | * Internal interrupts are all Level Sensitive, and Positive Polarity | ||
49 | */ | ||
50 | |||
51 | static u_char mpc86xx_hpcn_openpic_initsenses[] __initdata = { | ||
52 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 0: Reserved */ | ||
53 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 1: MCM */ | ||
54 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 2: DDR DRAM */ | ||
55 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 3: LBIU */ | ||
56 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 4: DMA 0 */ | ||
57 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 5: DMA 1 */ | ||
58 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 6: DMA 2 */ | ||
59 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 7: DMA 3 */ | ||
60 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 8: PCIE1 */ | ||
61 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 9: PCIE2 */ | ||
62 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 10: Reserved */ | ||
63 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 11: Reserved */ | ||
64 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 12: DUART2 */ | ||
65 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 13: TSEC 1 Transmit */ | ||
66 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 14: TSEC 1 Receive */ | ||
67 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 15: TSEC 3 transmit */ | ||
68 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 16: TSEC 3 receive */ | ||
69 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 17: TSEC 3 error */ | ||
70 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 18: TSEC 1 Receive/Transmit Error */ | ||
71 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 19: TSEC 2 Transmit */ | ||
72 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 20: TSEC 2 Receive */ | ||
73 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 21: TSEC 4 transmit */ | ||
74 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 22: TSEC 4 receive */ | ||
75 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 23: TSEC 4 error */ | ||
76 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 24: TSEC 2 Receive/Transmit Error */ | ||
77 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 25: Unused */ | ||
78 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 26: DUART1 */ | ||
79 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 27: I2C */ | ||
80 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 28: Performance Monitor */ | ||
81 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 29: Unused */ | ||
82 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 30: Unused */ | ||
83 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 31: Unused */ | ||
84 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 32: SRIO error/write-port unit */ | ||
85 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 33: SRIO outbound doorbell */ | ||
86 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 34: SRIO inbound doorbell */ | ||
87 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 35: Unused */ | ||
88 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 36: Unused */ | ||
89 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 37: SRIO outbound message unit 1 */ | ||
90 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 38: SRIO inbound message unit 1 */ | ||
91 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 39: SRIO outbound message unit 2 */ | ||
92 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 40: SRIO inbound message unit 2 */ | ||
93 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 41: Unused */ | ||
94 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 42: Unused */ | ||
95 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 43: Unused */ | ||
96 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 44: Unused */ | ||
97 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 45: Unused */ | ||
98 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 46: Unused */ | ||
99 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 47: Unused */ | ||
100 | 0x0, /* External 0: */ | ||
101 | 0x0, /* External 1: */ | ||
102 | 0x0, /* External 2: */ | ||
103 | 0x0, /* External 3: */ | ||
104 | 0x0, /* External 4: */ | ||
105 | 0x0, /* External 5: */ | ||
106 | 0x0, /* External 6: */ | ||
107 | 0x0, /* External 7: */ | ||
108 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 8: Pixis FPGA */ | ||
109 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* External 9: ULI 8259 INTR Cascade */ | ||
110 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 10: Quad ETH PHY */ | ||
111 | 0x0, /* External 11: */ | ||
112 | 0x0, | ||
113 | 0x0, | ||
114 | 0x0, | ||
115 | 0x0, | ||
116 | }; | ||
117 | |||
118 | |||
119 | void __init | ||
120 | mpc86xx_hpcn_init_irq(void) | ||
121 | { | ||
122 | struct mpic *mpic1; | ||
123 | phys_addr_t openpic_paddr; | ||
124 | |||
125 | /* Determine the Physical Address of the OpenPIC regs */ | ||
126 | openpic_paddr = get_immrbase() + MPC86xx_OPENPIC_OFFSET; | ||
127 | |||
128 | /* Alloc mpic structure and per isu has 16 INT entries. */ | ||
129 | mpic1 = mpic_alloc(openpic_paddr, | ||
130 | MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, | ||
131 | 16, MPC86xx_OPENPIC_IRQ_OFFSET, 0, 250, | ||
132 | mpc86xx_hpcn_openpic_initsenses, | ||
133 | sizeof(mpc86xx_hpcn_openpic_initsenses), | ||
134 | " MPIC "); | ||
135 | BUG_ON(mpic1 == NULL); | ||
136 | |||
137 | /* 48 Internal Interrupts */ | ||
138 | mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10200); | ||
139 | mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10400); | ||
140 | mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10600); | ||
141 | |||
142 | /* 16 External interrupts */ | ||
143 | mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10000); | ||
144 | |||
145 | mpic_init(mpic1); | ||
146 | |||
147 | #ifdef CONFIG_PCI | ||
148 | mpic_setup_cascade(MPC86xx_IRQ_EXT9, i8259_irq_cascade, NULL); | ||
149 | i8259_init(0, I8259_OFFSET); | ||
150 | #endif | ||
151 | } | ||
152 | |||
153 | |||
154 | |||
155 | #ifdef CONFIG_PCI | ||
156 | /* | ||
157 | * interrupt routing | ||
158 | */ | ||
159 | |||
160 | int | ||
161 | mpc86xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) | ||
162 | { | ||
163 | static char pci_irq_table[][4] = { | ||
164 | /* | ||
165 | * PCI IDSEL/INTPIN->INTLINE | ||
166 | * A B C D | ||
167 | */ | ||
168 | {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 17 -- PCI Slot 1 */ | ||
169 | {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 18 -- PCI Slot 2 */ | ||
170 | {0, 0, 0, 0}, /* IDSEL 19 */ | ||
171 | {0, 0, 0, 0}, /* IDSEL 20 */ | ||
172 | {0, 0, 0, 0}, /* IDSEL 21 */ | ||
173 | {0, 0, 0, 0}, /* IDSEL 22 */ | ||
174 | {0, 0, 0, 0}, /* IDSEL 23 */ | ||
175 | {0, 0, 0, 0}, /* IDSEL 24 */ | ||
176 | {0, 0, 0, 0}, /* IDSEL 25 */ | ||
177 | {PIRQD, PIRQA, PIRQB, PIRQC}, /* IDSEL 26 -- PCI Bridge*/ | ||
178 | {PIRQC, 0, 0, 0}, /* IDSEL 27 -- LAN */ | ||
179 | {PIRQE, PIRQF, PIRQH, PIRQ7}, /* IDSEL 28 -- USB 1.1 */ | ||
180 | {PIRQE, PIRQF, PIRQG, 0}, /* IDSEL 29 -- Audio & Modem */ | ||
181 | {PIRQH, 0, 0, 0}, /* IDSEL 30 -- LPC & PMU*/ | ||
182 | {PIRQD, 0, 0, 0}, /* IDSEL 31 -- ATA */ | ||
183 | }; | ||
184 | |||
185 | const long min_idsel = 17, max_idsel = 31, irqs_per_slot = 4; | ||
186 | return PCI_IRQ_TABLE_LOOKUP + I8259_OFFSET; | ||
187 | } | ||
188 | |||
189 | |||
190 | int | ||
191 | mpc86xx_exclude_device(u_char bus, u_char devfn) | ||
192 | { | ||
193 | #if !defined(CONFIG_PCI) | ||
194 | if (bus == 0 && PCI_SLOT(devfn) == 0) | ||
195 | return PCIBIOS_DEVICE_NOT_FOUND; | ||
196 | #endif | ||
197 | |||
198 | return PCIBIOS_SUCCESSFUL; | ||
199 | } | ||
200 | #endif /* CONFIG_PCI */ | ||
201 | |||
202 | |||
203 | static void __init | ||
204 | mpc86xx_hpcn_setup_arch(void) | ||
205 | { | ||
206 | struct device_node *np; | ||
207 | |||
208 | if (ppc_md.progress) | ||
209 | ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0); | ||
210 | |||
211 | np = of_find_node_by_type(NULL, "cpu"); | ||
212 | if (np != 0) { | ||
213 | unsigned int *fp; | ||
214 | |||
215 | fp = (int *)get_property(np, "clock-frequency", NULL); | ||
216 | if (fp != 0) | ||
217 | loops_per_jiffy = *fp / HZ; | ||
218 | else | ||
219 | loops_per_jiffy = 50000000 / HZ; | ||
220 | of_node_put(np); | ||
221 | } | ||
222 | |||
223 | #ifdef CONFIG_PCI | ||
224 | for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) | ||
225 | add_bridge(np); | ||
226 | |||
227 | ppc_md.pci_swizzle = common_swizzle; | ||
228 | ppc_md.pci_map_irq = mpc86xx_map_irq; | ||
229 | ppc_md.pci_exclude_device = mpc86xx_exclude_device; | ||
230 | #endif | ||
231 | |||
232 | printk("MPC86xx HPCN board from Freescale Semiconductor\n"); | ||
233 | |||
234 | #ifdef CONFIG_ROOT_NFS | ||
235 | ROOT_DEV = Root_NFS; | ||
236 | #else | ||
237 | ROOT_DEV = Root_HDA1; | ||
238 | #endif | ||
239 | |||
240 | #ifdef CONFIG_SMP | ||
241 | mpc86xx_smp_init(); | ||
242 | #endif | ||
243 | } | ||
244 | |||
245 | |||
246 | void | ||
247 | mpc86xx_hpcn_show_cpuinfo(struct seq_file *m) | ||
248 | { | ||
249 | struct device_node *root; | ||
250 | uint memsize = total_memory; | ||
251 | const char *model = ""; | ||
252 | uint svid = mfspr(SPRN_SVR); | ||
253 | |||
254 | seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); | ||
255 | |||
256 | root = of_find_node_by_path("/"); | ||
257 | if (root) | ||
258 | model = get_property(root, "model", NULL); | ||
259 | seq_printf(m, "Machine\t\t: %s\n", model); | ||
260 | of_node_put(root); | ||
261 | |||
262 | seq_printf(m, "SVR\t\t: 0x%x\n", svid); | ||
263 | seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); | ||
264 | } | ||
265 | |||
266 | |||
267 | /* | ||
268 | * Called very early, device-tree isn't unflattened | ||
269 | */ | ||
270 | static int __init mpc86xx_hpcn_probe(void) | ||
271 | { | ||
272 | unsigned long root = of_get_flat_dt_root(); | ||
273 | |||
274 | if (of_flat_dt_is_compatible(root, "mpc86xx")) | ||
275 | return 1; /* Looks good */ | ||
276 | |||
277 | return 0; | ||
278 | } | ||
279 | |||
280 | |||
281 | void | ||
282 | mpc86xx_restart(char *cmd) | ||
283 | { | ||
284 | void __iomem *rstcr; | ||
285 | |||
286 | rstcr = ioremap(get_immrbase() + MPC86XX_RSTCR_OFFSET, 0x100); | ||
287 | |||
288 | local_irq_disable(); | ||
289 | |||
290 | /* Assert reset request to Reset Control Register */ | ||
291 | out_be32(rstcr, 0x2); | ||
292 | |||
293 | /* not reached */ | ||
294 | } | ||
295 | |||
296 | |||
297 | long __init | ||
298 | mpc86xx_time_init(void) | ||
299 | { | ||
300 | unsigned int temp; | ||
301 | |||
302 | /* Set the time base to zero */ | ||
303 | mtspr(SPRN_TBWL, 0); | ||
304 | mtspr(SPRN_TBWU, 0); | ||
305 | |||
306 | temp = mfspr(SPRN_HID0); | ||
307 | temp |= HID0_TBEN; | ||
308 | mtspr(SPRN_HID0, temp); | ||
309 | asm volatile("isync"); | ||
310 | |||
311 | return 0; | ||
312 | } | ||
313 | |||
314 | |||
315 | define_machine(mpc86xx_hpcn) { | ||
316 | .name = "MPC86xx HPCN", | ||
317 | .probe = mpc86xx_hpcn_probe, | ||
318 | .setup_arch = mpc86xx_hpcn_setup_arch, | ||
319 | .init_IRQ = mpc86xx_hpcn_init_irq, | ||
320 | .show_cpuinfo = mpc86xx_hpcn_show_cpuinfo, | ||
321 | .get_irq = mpic_get_irq, | ||
322 | .restart = mpc86xx_restart, | ||
323 | .time_init = mpc86xx_time_init, | ||
324 | .calibrate_decr = generic_calibrate_decr, | ||
325 | .progress = udbg_progress, | ||
326 | }; | ||
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_smp.c b/arch/powerpc/platforms/86xx/mpc86xx_smp.c new file mode 100644 index 000000000000..944ec4b71416 --- /dev/null +++ b/arch/powerpc/platforms/86xx/mpc86xx_smp.c | |||
@@ -0,0 +1,117 @@ | |||
1 | /* | ||
2 | * Author: Xianghua Xiao <x.xiao@freescale.com> | ||
3 | * Zhang Wei <wei.zhang@freescale.com> | ||
4 | * | ||
5 | * Copyright 2006 Freescale Semiconductor Inc. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify it | ||
8 | * under the terms of the GNU General Public License as published by the | ||
9 | * Free Software Foundation; either version 2 of the License, or (at your | ||
10 | * option) any later version. | ||
11 | */ | ||
12 | |||
13 | #include <linux/config.h> | ||
14 | #include <linux/stddef.h> | ||
15 | #include <linux/kernel.h> | ||
16 | #include <linux/init.h> | ||
17 | #include <linux/delay.h> | ||
18 | |||
19 | #include <asm/pgtable.h> | ||
20 | #include <asm/page.h> | ||
21 | #include <asm/pci-bridge.h> | ||
22 | #include <asm-powerpc/mpic.h> | ||
23 | #include <asm/mpc86xx.h> | ||
24 | #include <asm/cacheflush.h> | ||
25 | |||
26 | #include <sysdev/fsl_soc.h> | ||
27 | |||
28 | #include "mpc86xx.h" | ||
29 | |||
30 | extern void __secondary_start_mpc86xx(void); | ||
31 | extern unsigned long __secondary_hold_acknowledge; | ||
32 | |||
33 | |||
34 | static void __init | ||
35 | smp_86xx_release_core(int nr) | ||
36 | { | ||
37 | void *mcm_vaddr; | ||
38 | unsigned long vaddr, pcr; | ||
39 | |||
40 | if (nr < 0 || nr >= NR_CPUS) | ||
41 | return; | ||
42 | |||
43 | /* | ||
44 | * Startup Core #nr. | ||
45 | */ | ||
46 | mcm_vaddr = ioremap(get_immrbase() + MPC86xx_MCM_OFFSET, | ||
47 | MPC86xx_MCM_SIZE); | ||
48 | vaddr = (unsigned long)mcm_vaddr + MCM_PORT_CONFIG_OFFSET; | ||
49 | pcr = in_be32((volatile unsigned *)vaddr); | ||
50 | pcr |= 1 << (nr + 24); | ||
51 | out_be32((volatile unsigned *)vaddr, pcr); | ||
52 | } | ||
53 | |||
54 | |||
55 | static void __init | ||
56 | smp_86xx_kick_cpu(int nr) | ||
57 | { | ||
58 | unsigned int save_vector; | ||
59 | unsigned long target, flags; | ||
60 | int n = 0; | ||
61 | volatile unsigned int *vector | ||
62 | = (volatile unsigned int *)(KERNELBASE + 0x100); | ||
63 | |||
64 | if (nr < 0 || nr >= NR_CPUS) | ||
65 | return; | ||
66 | |||
67 | pr_debug("smp_86xx_kick_cpu: kick CPU #%d\n", nr); | ||
68 | |||
69 | local_irq_save(flags); | ||
70 | local_irq_disable(); | ||
71 | |||
72 | /* Save reset vector */ | ||
73 | save_vector = *vector; | ||
74 | |||
75 | /* Setup fake reset vector to call __secondary_start_mpc86xx. */ | ||
76 | target = (unsigned long) __secondary_start_mpc86xx; | ||
77 | create_branch((unsigned long)vector, target, BRANCH_SET_LINK); | ||
78 | |||
79 | /* Kick that CPU */ | ||
80 | smp_86xx_release_core(nr); | ||
81 | |||
82 | /* Wait a bit for the CPU to take the exception. */ | ||
83 | while ((__secondary_hold_acknowledge != nr) && (n++, n < 1000)) | ||
84 | mdelay(1); | ||
85 | |||
86 | /* Restore the exception vector */ | ||
87 | *vector = save_vector; | ||
88 | flush_icache_range((unsigned long) vector, (unsigned long) vector + 4); | ||
89 | |||
90 | local_irq_restore(flags); | ||
91 | |||
92 | pr_debug("wait CPU #%d for %d msecs.\n", nr, n); | ||
93 | } | ||
94 | |||
95 | |||
96 | static void __init | ||
97 | smp_86xx_setup_cpu(int cpu_nr) | ||
98 | { | ||
99 | mpic_setup_this_cpu(); | ||
100 | } | ||
101 | |||
102 | |||
103 | struct smp_ops_t smp_86xx_ops = { | ||
104 | .message_pass = smp_mpic_message_pass, | ||
105 | .probe = smp_mpic_probe, | ||
106 | .kick_cpu = smp_86xx_kick_cpu, | ||
107 | .setup_cpu = smp_86xx_setup_cpu, | ||
108 | .take_timebase = smp_generic_take_timebase, | ||
109 | .give_timebase = smp_generic_give_timebase, | ||
110 | }; | ||
111 | |||
112 | |||
113 | void __init | ||
114 | mpc86xx_smp_init(void) | ||
115 | { | ||
116 | smp_ops = &smp_86xx_ops; | ||
117 | } | ||