1
2
3
4
5
6
7
8
9
10
11
12
13
14
15#include <linux/stddef.h>
16#include <linux/kernel.h>
17#include <linux/pci.h>
18#include <linux/kdev_t.h>
19#include <linux/delay.h>
20#include <linux/seq_file.h>
21#include <linux/of_platform.h>
22
23#include <asm/system.h>
24#include <asm/time.h>
25#include <asm/machdep.h>
26#include <asm/pci-bridge.h>
27#include <asm/mpic.h>
28#include <mm/mmu_decl.h>
29#include <asm/udbg.h>
30#include <asm/prom.h>
31
32#include <sysdev/fsl_soc.h>
33#include <sysdev/fsl_pci.h>
34
35#include <asm/cpm2.h>
36#include <sysdev/cpm2_pic.h>
37
38
39#define KSI8560_CPLD_HVR 0x04
40#define KSI8560_CPLD_PVR 0x08
41#define KSI8560_CPLD_RCR1 0x30
42
43#define KSI8560_CPLD_RCR1_CPUHR 0x80
44
45static void __iomem *cpld_base = NULL;
46
47static void machine_restart(char *cmd)
48{
49 if (cpld_base)
50 out_8(cpld_base + KSI8560_CPLD_RCR1, KSI8560_CPLD_RCR1_CPUHR);
51 else
52 printk(KERN_ERR "Can't find CPLD base, hang forever\n");
53
54 for (;;);
55}
56
57static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
58{
59 int cascade_irq;
60
61 while ((cascade_irq = cpm2_get_irq()) >= 0)
62 generic_handle_irq(cascade_irq);
63
64 desc->chip->eoi(irq);
65}
66
67static void __init ksi8560_pic_init(void)
68{
69 struct mpic *mpic;
70 struct resource r;
71 struct device_node *np;
72#ifdef CONFIG_CPM2
73 int irq;
74#endif
75
76 np = of_find_node_by_type(NULL, "open-pic");
77
78 if (np == NULL) {
79 printk(KERN_ERR "Could not find open-pic node\n");
80 return;
81 }
82
83 if (of_address_to_resource(np, 0, &r)) {
84 printk(KERN_ERR "Could not map mpic register space\n");
85 of_node_put(np);
86 return;
87 }
88
89 mpic = mpic_alloc(np, r.start,
90 MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
91 0, 256, " OpenPIC ");
92 BUG_ON(mpic == NULL);
93 of_node_put(np);
94
95 mpic_init(mpic);
96
97#ifdef CONFIG_CPM2
98
99 np = of_find_compatible_node(NULL, NULL, "fsl,cpm2-pic");
100 if (np == NULL) {
101 printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n");
102 return;
103 }
104 irq = irq_of_parse_and_map(np, 0);
105
106 cpm2_pic_init(np);
107 of_node_put(np);
108 set_irq_chained_handler(irq, cpm2_cascade);
109#endif
110}
111
112#ifdef CONFIG_CPM2
113
114
115
116struct cpm_pin {
117 int port, pin, flags;
118};
119
120static struct cpm_pin __initdata ksi8560_pins[] = {
121
122 {3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
123 {3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
124 {3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
125
126
127 {3, 26, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
128 {3, 27, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
129 {3, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
130
131
132 {0, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
133 {0, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
134 {0, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
135 {0, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
136 {0, 18, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
137 {0, 19, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
138 {0, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
139 {0, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
140 {0, 26, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
141 {0, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
142 {0, 28, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
143 {0, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
144 {0, 30, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
145 {0, 31, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
146 {2, 23, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
147 {2, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
148
149};
150
151static void __init init_ioports(void)
152{
153 int i;
154
155 for (i = 0; i < ARRAY_SIZE(ksi8560_pins); i++) {
156 struct cpm_pin *pin = &ksi8560_pins[i];
157 cpm2_set_pin(pin->port, pin->pin, pin->flags);
158 }
159
160 cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX);
161 cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX);
162 cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_RX);
163 cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_TX);
164 cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK9, CPM_CLK_RX);
165 cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX);
166}
167#endif
168
169
170
171
172static void __init ksi8560_setup_arch(void)
173{
174 struct device_node *cpld;
175
176 cpld = of_find_compatible_node(NULL, NULL, "emerson,KSI8560-cpld");
177 if (cpld)
178 cpld_base = of_iomap(cpld, 0);
179 else
180 printk(KERN_ERR "Can't find CPLD in device tree\n");
181
182 if (ppc_md.progress)
183 ppc_md.progress("ksi8560_setup_arch()", 0);
184
185#ifdef CONFIG_CPM2
186 cpm2_reset();
187 init_ioports();
188#endif
189}
190
191static void ksi8560_show_cpuinfo(struct seq_file *m)
192{
193 uint pvid, svid, phid1;
194
195 pvid = mfspr(SPRN_PVR);
196 svid = mfspr(SPRN_SVR);
197
198 seq_printf(m, "Vendor\t\t: Emerson Network Power\n");
199 seq_printf(m, "Board\t\t: KSI8560\n");
200
201 if (cpld_base) {
202 seq_printf(m, "Hardware rev\t: %d\n",
203 in_8(cpld_base + KSI8560_CPLD_HVR));
204 seq_printf(m, "CPLD rev\t: %d\n",
205 in_8(cpld_base + KSI8560_CPLD_PVR));
206 } else
207 seq_printf(m, "Unknown Hardware and CPLD revs\n");
208
209 seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
210 seq_printf(m, "SVR\t\t: 0x%x\n", svid);
211
212
213 phid1 = mfspr(SPRN_HID1);
214 seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
215}
216
217static struct of_device_id __initdata of_bus_ids[] = {
218 { .type = "soc", },
219 { .type = "simple-bus", },
220 { .name = "cpm", },
221 { .name = "localbus", },
222 { .compatible = "gianfar", },
223 {},
224};
225
226static int __init declare_of_platform_devices(void)
227{
228 of_platform_bus_probe(NULL, of_bus_ids, NULL);
229
230 return 0;
231}
232machine_device_initcall(ksi8560, declare_of_platform_devices);
233
234
235
236
237static int __init ksi8560_probe(void)
238{
239 unsigned long root = of_get_flat_dt_root();
240
241 return of_flat_dt_is_compatible(root, "emerson,KSI8560");
242}
243
244define_machine(ksi8560) {
245 .name = "KSI8560",
246 .probe = ksi8560_probe,
247 .setup_arch = ksi8560_setup_arch,
248 .init_IRQ = ksi8560_pic_init,
249 .show_cpuinfo = ksi8560_show_cpuinfo,
250 .get_irq = mpic_get_irq,
251 .restart = machine_restart,
252 .calibrate_decr = generic_calibrate_decr,
253};
254
