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-rw-r--r--arch/ppc/platforms/adir_setup.c210
1 files changed, 0 insertions, 210 deletions
diff --git a/arch/ppc/platforms/adir_setup.c b/arch/ppc/platforms/adir_setup.c
deleted file mode 100644
index 6a6754ee0617..000000000000
--- a/arch/ppc/platforms/adir_setup.c
+++ /dev/null
@@ -1,210 +0,0 @@
1/*
2 * arch/ppc/platforms/adir_setup.c
3 *
4 * Board setup routines for SBS Adirondack
5 *
6 * By Michael Sokolov <msokolov@ivan.Harhan.ORG>
7 * based on the K2 version by Matt Porter <mporter@mvista.com>
8 */
9
10#include <linux/config.h>
11#include <linux/stddef.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/errno.h>
15#include <linux/reboot.h>
16#include <linux/pci.h>
17#include <linux/kdev_t.h>
18#include <linux/types.h>
19#include <linux/major.h>
20#include <linux/initrd.h>
21#include <linux/console.h>
22#include <linux/delay.h>
23#include <linux/ide.h>
24#include <linux/seq_file.h>
25#include <linux/root_dev.h>
26
27#include <asm/system.h>
28#include <asm/pgtable.h>
29#include <asm/page.h>
30#include <asm/dma.h>
31#include <asm/io.h>
32#include <asm/machdep.h>
33#include <asm/time.h>
34#include <asm/todc.h>
35#include <asm/bootinfo.h>
36
37#include "adir.h"
38
39extern void adir_init_IRQ(void);
40extern int adir_get_irq(struct pt_regs *);
41extern void adir_find_bridges(void);
42extern unsigned long loops_per_jiffy;
43
44static unsigned int cpu_750cx[16] = {
45 5, 15, 14, 0, 4, 13, 0, 9, 6, 11, 8, 10, 16, 12, 7, 0
46};
47
48static int
49adir_get_bus_speed(void)
50{
51 if (!(*((u_char *) ADIR_CLOCK_REG) & ADIR_CLOCK_REG_SEL133))
52 return 100000000;
53 else
54 return 133333333;
55}
56
57static int
58adir_get_cpu_speed(void)
59{
60 unsigned long hid1;
61 int cpu_speed;
62
63 hid1 = mfspr(SPRN_HID1) >> 28;
64
65 hid1 = cpu_750cx[hid1];
66
67 cpu_speed = adir_get_bus_speed()*hid1/2;
68 return cpu_speed;
69}
70
71static void __init
72adir_calibrate_decr(void)
73{
74 int freq, divisor = 4;
75
76 /* determine processor bus speed */
77 freq = adir_get_bus_speed();
78 tb_ticks_per_jiffy = freq / HZ / divisor;
79 tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000);
80}
81
82static int
83adir_show_cpuinfo(struct seq_file *m)
84{
85 seq_printf(m, "vendor\t\t: SBS\n");
86 seq_printf(m, "machine\t\t: Adirondack\n");
87 seq_printf(m, "cpu speed\t: %dMhz\n", adir_get_cpu_speed()/1000000);
88 seq_printf(m, "bus speed\t: %dMhz\n", adir_get_bus_speed()/1000000);
89 seq_printf(m, "memory type\t: SDRAM\n");
90
91 return 0;
92}
93
94extern char cmd_line[];
95
96TODC_ALLOC();
97
98static void __init
99adir_setup_arch(void)
100{
101 unsigned int cpu;
102
103 /* Setup TODC access */
104 TODC_INIT(TODC_TYPE_MC146818, ADIR_NVRAM_RTC_ADDR, 0,
105 ADIR_NVRAM_RTC_DATA, 8);
106
107 /* init to some ~sane value until calibrate_delay() runs */
108 loops_per_jiffy = 50000000/HZ;
109
110 /* Setup PCI host bridges */
111 adir_find_bridges();
112
113#ifdef CONFIG_BLK_DEV_INITRD
114 if (initrd_start)
115 ROOT_DEV = Root_RAM0;
116 else
117#endif
118#ifdef CONFIG_ROOT_NFS
119 ROOT_DEV = Root_NFS;
120#else
121 ROOT_DEV = Root_SDA1;
122#endif
123
124 /* Identify the system */
125 printk("System Identification: SBS Adirondack - PowerPC 750CXe @ %d Mhz\n", adir_get_cpu_speed()/1000000);
126 printk("SBS Adirondack port (C) 2001 SBS Technologies, Inc.\n");
127
128 /* Identify the CPU manufacturer */
129 cpu = mfspr(SPRN_PVR);
130 printk("CPU manufacturer: IBM [rev=%04x]\n", (cpu & 0xffff));
131}
132
133static void
134adir_restart(char *cmd)
135{
136 local_irq_disable();
137 /* SRR0 has system reset vector, SRR1 has default MSR value */
138 /* rfi restores MSR from SRR1 and sets the PC to the SRR0 value */
139 __asm__ __volatile__
140 ("lis 3,0xfff0\n\t"
141 "ori 3,3,0x0100\n\t"
142 "mtspr 26,3\n\t"
143 "li 3,0\n\t"
144 "mtspr 27,3\n\t"
145 "rfi\n\t");
146 for(;;);
147}
148
149static void
150adir_power_off(void)
151{
152 for(;;);
153}
154
155static void
156adir_halt(void)
157{
158 adir_restart(NULL);
159}
160
161static unsigned long __init
162adir_find_end_of_memory(void)
163{
164 return boot_mem_size;
165}
166
167static void __init
168adir_map_io(void)
169{
170 io_block_mapping(ADIR_PCI32_VIRT_IO_BASE, ADIR_PCI32_IO_BASE,
171 ADIR_PCI32_VIRT_IO_SIZE, _PAGE_IO);
172 io_block_mapping(ADIR_PCI64_VIRT_IO_BASE, ADIR_PCI64_IO_BASE,
173 ADIR_PCI64_VIRT_IO_SIZE, _PAGE_IO);
174}
175
176void __init
177platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
178 unsigned long r6, unsigned long r7)
179{
180 /*
181 * On the Adirondack we use bi_recs and pass the pointer to them in R3.
182 */
183 parse_bootinfo((struct bi_record *) (r3 + KERNELBASE));
184
185 /* Remember, isa_io_base is virtual but isa_mem_base is physical! */
186 isa_io_base = ADIR_PCI32_VIRT_IO_BASE;
187 isa_mem_base = ADIR_PCI32_MEM_BASE;
188 pci_dram_offset = ADIR_PCI_SYS_MEM_BASE;
189
190 ppc_md.setup_arch = adir_setup_arch;
191 ppc_md.show_cpuinfo = adir_show_cpuinfo;
192 ppc_md.irq_canonicalize = NULL;
193 ppc_md.init_IRQ = adir_init_IRQ;
194 ppc_md.get_irq = adir_get_irq;
195 ppc_md.init = NULL;
196
197 ppc_md.find_end_of_memory = adir_find_end_of_memory;
198 ppc_md.setup_io_mappings = adir_map_io;
199
200 ppc_md.restart = adir_restart;
201 ppc_md.power_off = adir_power_off;
202 ppc_md.halt = adir_halt;
203
204 ppc_md.time_init = todc_time_init;
205 ppc_md.set_rtc_time = todc_set_rtc_time;
206 ppc_md.get_rtc_time = todc_get_rtc_time;
207 ppc_md.nvram_read_val = todc_mc146818_read_val;
208 ppc_md.nvram_write_val = todc_mc146818_write_val;
209 ppc_md.calibrate_decr = adir_calibrate_decr;
210}
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