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authorPaul Mackerras <paulus@samba.org>2008-06-09 00:01:46 -0400
committerPaul Mackerras <paulus@samba.org>2008-06-10 07:40:22 -0400
commit917f0af9e5a9ceecf9e72537fabb501254ba321d (patch)
tree1ef207755c6d83ce4af93ef2b5e4645eebd65886 /arch/ppc/platforms/spruce.c
parent0f3d6bcd391b058c619fc30e8022e8a29fbf4bef (diff)
powerpc: Remove arch/ppc and include/asm-ppc
All the maintained platforms are now in arch/powerpc, so the old arch/ppc stuff can now go away. Acked-by: Adrian Bunk <bunk@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Becky Bruce <becky.bruce@freescale.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Jochen Friedrich <jochen@scram.de> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Jon Loeliger <jdl@freescale.com> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Acked-by: Scott Wood <scottwood@freescale.com> Acked-by: Sean MacLennan <smaclennan@pikatech.com> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Acked-by: Stefan Roese <sr@denx.de> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/platforms/spruce.c')
-rw-r--r--arch/ppc/platforms/spruce.c322
1 files changed, 0 insertions, 322 deletions
diff --git a/arch/ppc/platforms/spruce.c b/arch/ppc/platforms/spruce.c
deleted file mode 100644
index a344134f14b8..000000000000
--- a/arch/ppc/platforms/spruce.c
+++ /dev/null
@@ -1,322 +0,0 @@
1/*
2 * Board and PCI setup routines for IBM Spruce
3 *
4 * Author: MontaVista Software <source@mvista.com>
5 *
6 * 2000-2004 (c) MontaVista, Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11
12#include <linux/stddef.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/errno.h>
16#include <linux/reboot.h>
17#include <linux/pci.h>
18#include <linux/kdev_t.h>
19#include <linux/types.h>
20#include <linux/major.h>
21#include <linux/initrd.h>
22#include <linux/console.h>
23#include <linux/delay.h>
24#include <linux/seq_file.h>
25#include <linux/root_dev.h>
26#include <linux/serial.h>
27#include <linux/tty.h>
28#include <linux/serial_core.h>
29#include <linux/serial_8250.h>
30
31#include <asm/system.h>
32#include <asm/pgtable.h>
33#include <asm/page.h>
34#include <asm/dma.h>
35#include <asm/io.h>
36#include <asm/machdep.h>
37#include <asm/time.h>
38#include <asm/todc.h>
39#include <asm/bootinfo.h>
40#include <asm/kgdb.h>
41
42#include <syslib/cpc700.h>
43
44#include "spruce.h"
45
46static inline int
47spruce_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
48{
49 static char pci_irq_table[][4] =
50 /*
51 * PCI IDSEL/INTPIN->INTLINE
52 * A B C D
53 */
54 {
55 {23, 24, 25, 26}, /* IDSEL 1 - PCI slot 3 */
56 {24, 25, 26, 23}, /* IDSEL 2 - PCI slot 2 */
57 {25, 26, 23, 24}, /* IDSEL 3 - PCI slot 1 */
58 {26, 23, 24, 25}, /* IDSEL 4 - PCI slot 0 */
59 };
60
61 const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4;
62 return PCI_IRQ_TABLE_LOOKUP;
63}
64
65static void __init
66spruce_setup_hose(void)
67{
68 struct pci_controller *hose;
69
70 /* Setup hose */
71 hose = pcibios_alloc_controller();
72 if (!hose)
73 return;
74
75 hose->first_busno = 0;
76 hose->last_busno = 0xff;
77
78 pci_init_resource(&hose->io_resource,
79 SPRUCE_PCI_LOWER_IO,
80 SPRUCE_PCI_UPPER_IO,
81 IORESOURCE_IO,
82 "PCI host bridge");
83
84 pci_init_resource(&hose->mem_resources[0],
85 SPRUCE_PCI_LOWER_MEM,
86 SPRUCE_PCI_UPPER_MEM,
87 IORESOURCE_MEM,
88 "PCI host bridge");
89
90 hose->io_space.start = SPRUCE_PCI_LOWER_IO;
91 hose->io_space.end = SPRUCE_PCI_UPPER_IO;
92 hose->mem_space.start = SPRUCE_PCI_LOWER_MEM;
93 hose->mem_space.end = SPRUCE_PCI_UPPER_MEM;
94 hose->io_base_virt = (void *)SPRUCE_ISA_IO_BASE;
95
96 setup_indirect_pci(hose,
97 SPRUCE_PCI_CONFIG_ADDR,
98 SPRUCE_PCI_CONFIG_DATA);
99
100 hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
101
102 ppc_md.pci_swizzle = common_swizzle;
103 ppc_md.pci_map_irq = spruce_map_irq;
104}
105
106/*
107 * CPC700 PIC interrupt programming table
108 *
109 * First entry is the sensitivity (level/edge), second is the polarity.
110 */
111unsigned int cpc700_irq_assigns[32][2] = {
112 { 1, 1 }, /* IRQ 0: ECC Correctable Error - rising edge */
113 { 1, 1 }, /* IRQ 1: PCI Write Mem Range - rising edge */
114 { 0, 1 }, /* IRQ 2: PCI Write Command Reg - active high */
115 { 0, 1 }, /* IRQ 3: UART 0 - active high */
116 { 0, 1 }, /* IRQ 4: UART 1 - active high */
117 { 0, 1 }, /* IRQ 5: ICC 0 - active high */
118 { 0, 1 }, /* IRQ 6: ICC 1 - active high */
119 { 0, 1 }, /* IRQ 7: GPT Compare 0 - active high */
120 { 0, 1 }, /* IRQ 8: GPT Compare 1 - active high */
121 { 0, 1 }, /* IRQ 9: GPT Compare 2 - active high */
122 { 0, 1 }, /* IRQ 10: GPT Compare 3 - active high */
123 { 0, 1 }, /* IRQ 11: GPT Compare 4 - active high */
124 { 0, 1 }, /* IRQ 12: GPT Capture 0 - active high */
125 { 0, 1 }, /* IRQ 13: GPT Capture 1 - active high */
126 { 0, 1 }, /* IRQ 14: GPT Capture 2 - active high */
127 { 0, 1 }, /* IRQ 15: GPT Capture 3 - active high */
128 { 0, 1 }, /* IRQ 16: GPT Capture 4 - active high */
129 { 0, 0 }, /* IRQ 17: Reserved */
130 { 0, 0 }, /* IRQ 18: Reserved */
131 { 0, 0 }, /* IRQ 19: Reserved */
132 { 0, 1 }, /* IRQ 20: FPGA EXT_IRQ0 - active high */
133 { 1, 1 }, /* IRQ 21: Mouse - rising edge */
134 { 1, 1 }, /* IRQ 22: Keyboard - rising edge */
135 { 0, 0 }, /* IRQ 23: PCI Slot 3 - active low */
136 { 0, 0 }, /* IRQ 24: PCI Slot 2 - active low */
137 { 0, 0 }, /* IRQ 25: PCI Slot 1 - active low */
138 { 0, 0 }, /* IRQ 26: PCI Slot 0 - active low */
139};
140
141static void __init
142spruce_calibrate_decr(void)
143{
144 int freq, divisor = 4;
145
146 /* determine processor bus speed */
147 freq = SPRUCE_BUS_SPEED;
148 tb_ticks_per_jiffy = freq / HZ / divisor;
149 tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000);
150}
151
152static int
153spruce_show_cpuinfo(struct seq_file *m)
154{
155 seq_printf(m, "vendor\t\t: IBM\n");
156 seq_printf(m, "machine\t\t: Spruce\n");
157
158 return 0;
159}
160
161static void __init
162spruce_early_serial_map(void)
163{
164 u32 uart_clk;
165 struct uart_port serial_req;
166
167 if (SPRUCE_UARTCLK_IS_33M(readb(SPRUCE_FPGA_REG_A)))
168 uart_clk = SPRUCE_BAUD_33M * 16;
169 else
170 uart_clk = SPRUCE_BAUD_30M * 16;
171
172 /* Setup serial port access */
173 memset(&serial_req, 0, sizeof(serial_req));
174 serial_req.uartclk = uart_clk;
175 serial_req.irq = UART0_INT;
176 serial_req.flags = UPF_BOOT_AUTOCONF;
177 serial_req.iotype = UPIO_MEM;
178 serial_req.membase = (u_char *)UART0_IO_BASE;
179 serial_req.regshift = 0;
180
181#if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG)
182 gen550_init(0, &serial_req);
183#endif
184#ifdef CONFIG_SERIAL_8250
185 if (early_serial_setup(&serial_req) != 0)
186 printk("Early serial init of port 0 failed\n");
187#endif
188
189 /* Assume early_serial_setup() doesn't modify serial_req */
190 serial_req.line = 1;
191 serial_req.irq = UART1_INT;
192 serial_req.membase = (u_char *)UART1_IO_BASE;
193
194#if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG)
195 gen550_init(1, &serial_req);
196#endif
197#ifdef CONFIG_SERIAL_8250
198 if (early_serial_setup(&serial_req) != 0)
199 printk("Early serial init of port 1 failed\n");
200#endif
201}
202
203TODC_ALLOC();
204
205static void __init
206spruce_setup_arch(void)
207{
208 /* Setup TODC access */
209 TODC_INIT(TODC_TYPE_DS1643, 0, 0, SPRUCE_RTC_BASE_ADDR, 8);
210
211 /* init to some ~sane value until calibrate_delay() runs */
212 loops_per_jiffy = 50000000 / HZ;
213
214 /* Setup PCI host bridge */
215 spruce_setup_hose();
216
217#ifdef CONFIG_BLK_DEV_INITRD
218 if (initrd_start)
219 ROOT_DEV = Root_RAM0;
220 else
221#endif
222#ifdef CONFIG_ROOT_NFS
223 ROOT_DEV = Root_NFS;
224#else
225 ROOT_DEV = Root_SDA1;
226#endif
227
228 /* Identify the system */
229 printk(KERN_INFO "System Identification: IBM Spruce\n");
230 printk(KERN_INFO "Port by MontaVista Software, Inc. (source@mvista.com)\n");
231}
232
233static void
234spruce_restart(char *cmd)
235{
236 local_irq_disable();
237
238 /* SRR0 has system reset vector, SRR1 has default MSR value */
239 /* rfi restores MSR from SRR1 and sets the PC to the SRR0 value */
240 __asm__ __volatile__
241 ("\n\
242 lis 3,0xfff0 \n\
243 ori 3,3,0x0100 \n\
244 mtspr 26,3 \n\
245 li 3,0 \n\
246 mtspr 27,3 \n\
247 rfi \n\
248 ");
249 for(;;);
250}
251
252static void
253spruce_power_off(void)
254{
255 for(;;);
256}
257
258static void
259spruce_halt(void)
260{
261 spruce_restart(NULL);
262}
263
264static void __init
265spruce_map_io(void)
266{
267 io_block_mapping(SPRUCE_PCI_IO_BASE, SPRUCE_PCI_PHY_IO_BASE,
268 0x08000000, _PAGE_IO);
269}
270
271/*
272 * Set BAT 3 to map 0xf8000000 to end of physical memory space 1-to-1.
273 */
274static __inline__ void
275spruce_set_bat(void)
276{
277 mb();
278 mtspr(SPRN_DBAT1U, 0xf8000ffe);
279 mtspr(SPRN_DBAT1L, 0xf800002a);
280 mb();
281}
282
283void __init
284platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
285 unsigned long r6, unsigned long r7)
286{
287 parse_bootinfo(find_bootinfo());
288
289 /* Map in board regs, etc. */
290 spruce_set_bat();
291
292 isa_io_base = SPRUCE_ISA_IO_BASE;
293 pci_dram_offset = SPRUCE_PCI_SYS_MEM_BASE;
294
295 ppc_md.setup_arch = spruce_setup_arch;
296 ppc_md.show_cpuinfo = spruce_show_cpuinfo;
297 ppc_md.init_IRQ = cpc700_init_IRQ;
298 ppc_md.get_irq = cpc700_get_irq;
299
300 ppc_md.setup_io_mappings = spruce_map_io;
301
302 ppc_md.restart = spruce_restart;
303 ppc_md.power_off = spruce_power_off;
304 ppc_md.halt = spruce_halt;
305
306 ppc_md.time_init = todc_time_init;
307 ppc_md.set_rtc_time = todc_set_rtc_time;
308 ppc_md.get_rtc_time = todc_get_rtc_time;
309 ppc_md.calibrate_decr = spruce_calibrate_decr;
310
311 ppc_md.nvram_read_val = todc_direct_read_val;
312 ppc_md.nvram_write_val = todc_direct_write_val;
313
314 spruce_early_serial_map();
315
316#ifdef CONFIG_SERIAL_TEXT_DEBUG
317 ppc_md.progress = gen550_progress;
318#endif /* CONFIG_SERIAL_TEXT_DEBUG */
319#ifdef CONFIG_KGDB
320 ppc_md.kgdb_map_scc = gen550_kgdb_map_scc;
321#endif
322}
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-31 15:02:50 -0500