2 * Board setup routines for the Force CPCI690 board.
4 * Author: Mark A. Greer <mgreer@mvista.com>
6 * 2003 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This programr
8 * is licensed "as is" without any warranty of any kind, whether express
11 #include <linux/delay.h>
12 #include <linux/pci.h>
13 #include <linux/irq.h>
15 #include <linux/seq_file.h>
16 #include <linux/console.h>
17 #include <linux/initrd.h>
18 #include <linux/root_dev.h>
19 #include <linux/mv643xx.h>
20 #include <linux/platform_device.h>
21 #include <asm/bootinfo.h>
22 #include <asm/machdep.h>
25 #include <asm/mv64x60.h>
26 #include <platforms/cpci690.h>
28 #define BOARD_VENDOR "Force"
29 #define BOARD_MACHINE "CPCI690"
31 /* Set IDE controllers into Native mode? */
32 #define SET_PCI_IDE_NATIVE
34 static struct mv64x60_handle bh;
35 static void __iomem *cpci690_br_base;
40 cpci690_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
42 struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
44 if (hose->index == 0) {
45 static char pci_irq_table[][4] =
47 * PCI IDSEL/INTPIN->INTLINE
51 { 90, 91, 88, 89 }, /* IDSEL 30/20 - Sentinel */
54 const long min_idsel = 20, max_idsel = 20, irqs_per_slot = 4;
55 return PCI_IRQ_TABLE_LOOKUP;
57 static char pci_irq_table[][4] =
59 * PCI IDSEL/INTPIN->INTLINE
63 { 93, 94, 95, 92 }, /* IDSEL 28/18 - PMC slot 2 */
64 { 0, 0, 0, 0 }, /* IDSEL 29/19 - Not used */
65 { 94, 95, 92, 93 }, /* IDSEL 30/20 - PMC slot 1 */
68 const long min_idsel = 18, max_idsel = 20, irqs_per_slot = 4;
69 return PCI_IRQ_TABLE_LOOKUP;
73 #define GB (1024UL * 1024UL * 1024UL)
76 cpci690_get_bus_freq(void)
78 if (boot_mem_size >= (1*GB)) /* bus speed based on mem size */
84 static const unsigned int cpu_750xx[32] = { /* 750FX & 750GX */
85 0, 0, 2, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,/* 0-15*/
86 16, 17, 18, 19, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 0 /*16-31*/
90 cpci690_get_cpu_freq(void)
92 unsigned long pll_cfg;
94 pll_cfg = (mfspr(SPRN_HID1) & 0xf8000000) >> 27;
95 return cpci690_get_bus_freq() * cpu_750xx[pll_cfg]/2;
99 cpci690_setup_bridge(void)
101 struct mv64x60_setup_info si;
104 memset(&si, 0, sizeof(si));
106 si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
108 si.pci_0.enable_bus = 1;
109 si.pci_0.pci_io.cpu_base = CPCI690_PCI0_IO_START_PROC_ADDR;
110 si.pci_0.pci_io.pci_base_hi = 0;
111 si.pci_0.pci_io.pci_base_lo = CPCI690_PCI0_IO_START_PCI_ADDR;
112 si.pci_0.pci_io.size = CPCI690_PCI0_IO_SIZE;
113 si.pci_0.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
114 si.pci_0.pci_mem[0].cpu_base = CPCI690_PCI0_MEM_START_PROC_ADDR;
115 si.pci_0.pci_mem[0].pci_base_hi = CPCI690_PCI0_MEM_START_PCI_HI_ADDR;
116 si.pci_0.pci_mem[0].pci_base_lo = CPCI690_PCI0_MEM_START_PCI_LO_ADDR;
117 si.pci_0.pci_mem[0].size = CPCI690_PCI0_MEM_SIZE;
118 si.pci_0.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
119 si.pci_0.pci_cmd_bits = 0;
120 si.pci_0.latency_timer = 0x80;
122 si.pci_1.enable_bus = 1;
123 si.pci_1.pci_io.cpu_base = CPCI690_PCI1_IO_START_PROC_ADDR;
124 si.pci_1.pci_io.pci_base_hi = 0;
125 si.pci_1.pci_io.pci_base_lo = CPCI690_PCI1_IO_START_PCI_ADDR;
126 si.pci_1.pci_io.size = CPCI690_PCI1_IO_SIZE;
127 si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
128 si.pci_1.pci_mem[0].cpu_base = CPCI690_PCI1_MEM_START_PROC_ADDR;
129 si.pci_1.pci_mem[0].pci_base_hi = CPCI690_PCI1_MEM_START_PCI_HI_ADDR;
130 si.pci_1.pci_mem[0].pci_base_lo = CPCI690_PCI1_MEM_START_PCI_LO_ADDR;
131 si.pci_1.pci_mem[0].size = CPCI690_PCI1_MEM_SIZE;
132 si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
133 si.pci_1.pci_cmd_bits = 0;
134 si.pci_1.latency_timer = 0x80;
136 for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++) {
137 si.cpu_prot_options[i] = 0;
138 si.cpu_snoop_options[i] = GT64260_CPU_SNOOP_WB;
139 si.pci_0.acc_cntl_options[i] =
140 GT64260_PCI_ACC_CNTL_DREADEN |
141 GT64260_PCI_ACC_CNTL_RDPREFETCH |
142 GT64260_PCI_ACC_CNTL_RDLINEPREFETCH |
143 GT64260_PCI_ACC_CNTL_RDMULPREFETCH |
144 GT64260_PCI_ACC_CNTL_SWAP_NONE |
145 GT64260_PCI_ACC_CNTL_MBURST_32_BTYES;
146 si.pci_0.snoop_options[i] = GT64260_PCI_SNOOP_WB;
147 si.pci_1.acc_cntl_options[i] =
148 GT64260_PCI_ACC_CNTL_DREADEN |
149 GT64260_PCI_ACC_CNTL_RDPREFETCH |
150 GT64260_PCI_ACC_CNTL_RDLINEPREFETCH |
151 GT64260_PCI_ACC_CNTL_RDMULPREFETCH |
152 GT64260_PCI_ACC_CNTL_SWAP_NONE |
153 GT64260_PCI_ACC_CNTL_MBURST_32_BTYES;
154 si.pci_1.snoop_options[i] = GT64260_PCI_SNOOP_WB;
157 /* Lookup PCI host bridges */
158 if (mv64x60_init(&bh, &si))
159 printk(KERN_ERR "Bridge initialization failed.\n");
161 pci_dram_offset = 0; /* System mem at same addr on PCI & cpu bus */
162 ppc_md.pci_swizzle = common_swizzle;
163 ppc_md.pci_map_irq = cpci690_map_irq;
164 ppc_md.pci_exclude_device = mv64x60_pci_exclude_device;
166 mv64x60_set_bus(&bh, 0, 0);
167 bh.hose_a->first_busno = 0;
168 bh.hose_a->last_busno = 0xff;
169 bh.hose_a->last_busno = pciauto_bus_scan(bh.hose_a, 0);
171 bh.hose_b->first_busno = bh.hose_a->last_busno + 1;
172 mv64x60_set_bus(&bh, 1, bh.hose_b->first_busno);
173 bh.hose_b->last_busno = 0xff;
174 bh.hose_b->last_busno = pciauto_bus_scan(bh.hose_b,
175 bh.hose_b->first_busno);
179 cpci690_setup_peripherals(void)
181 /* Set up windows to CPLD, RTC/TODC, IPMI. */
182 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_0_WIN, CPCI690_BR_BASE,
184 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_0_WIN);
185 cpci690_br_base = ioremap(CPCI690_BR_BASE, CPCI690_BR_SIZE);
187 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN, CPCI690_TODC_BASE,
188 CPCI690_TODC_SIZE, 0);
189 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN);
190 TODC_INIT(TODC_TYPE_MK48T35, 0, 0,
191 ioremap(CPCI690_TODC_BASE, CPCI690_TODC_SIZE), 8);
193 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_2_WIN, CPCI690_IPMI_BASE,
194 CPCI690_IPMI_SIZE, 0);
195 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_2_WIN);
197 mv64x60_set_bits(&bh, MV64x60_PCI0_ARBITER_CNTL, (1<<31));
198 mv64x60_set_bits(&bh, MV64x60_PCI1_ARBITER_CNTL, (1<<31));
200 mv64x60_set_bits(&bh, MV64x60_CPU_MASTER_CNTL, (1<<9)); /* Only 1 cpu */
203 * Turn off timer/counters. Not turning off watchdog timer because
204 * can't read its reg on the 64260A so don't know if we'll be enabling
207 mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL,
208 ((1<<0) | (1<<8) | (1<<16) | (1<<24)));
209 mv64x60_clr_bits(&bh, GT64260_TIMR_CNTR_4_7_CNTL,
210 ((1<<0) | (1<<8) | (1<<16) | (1<<24)));
213 * Set MPSC Multiplex RMII
214 * NOTE: ethernet driver modifies bit 0 and 1
216 mv64x60_write(&bh, GT64260_MPP_SERIAL_PORTS_MULTIPLEX, 0x00001102);
218 #define GPP_EXTERNAL_INTERRUPTS \
219 ((1<<24) | (1<<25) | (1<<26) | (1<<27) | \
220 (1<<28) | (1<<29) | (1<<30) | (1<<31))
221 /* PCI interrupts are inputs */
222 mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, GPP_EXTERNAL_INTERRUPTS);
223 /* PCI interrupts are active low */
224 mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, GPP_EXTERNAL_INTERRUPTS);
226 /* Clear any pending interrupts for these inputs and enable them. */
227 mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~GPP_EXTERNAL_INTERRUPTS);
228 mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, GPP_EXTERNAL_INTERRUPTS);
230 /* Route MPP interrupt inputs to GPP */
231 mv64x60_write(&bh, MV64x60_MPP_CNTL_2, 0x00000000);
232 mv64x60_write(&bh, MV64x60_MPP_CNTL_3, 0x00000000);
236 cpci690_setup_arch(void)
239 ppc_md.progress("cpci690_setup_arch: enter", 0);
240 #ifdef CONFIG_BLK_DEV_INITRD
242 ROOT_DEV = Root_RAM0;
245 #ifdef CONFIG_ROOT_NFS
248 ROOT_DEV = Root_SDA2;
252 ppc_md.progress("cpci690_setup_arch: Enabling L2 cache", 0);
254 /* Enable L2 and L3 caches (if 745x) */
255 _set_L2CR(_get_L2CR() | L2CR_L2E);
256 _set_L3CR(_get_L3CR() | L3CR_L3E);
259 ppc_md.progress("cpci690_setup_arch: Initializing bridge", 0);
261 cpci690_setup_bridge(); /* set up PCI bridge(s) */
262 cpci690_setup_peripherals(); /* set up chip selects/GPP/MPP etc */
265 ppc_md.progress("cpci690_setup_arch: bridge init complete", 0);
267 printk(KERN_INFO "%s %s port (C) 2003 MontaVista Software, Inc. "
268 "(source@mvista.com)\n", BOARD_VENDOR, BOARD_MACHINE);
271 ppc_md.progress("cpci690_setup_arch: exit", 0);
274 /* Platform device data fixup routines. */
275 #if defined(CONFIG_SERIAL_MPSC)
277 cpci690_fixup_mpsc_pdata(struct platform_device *pdev)
279 struct mpsc_pdata *pdata;
281 pdata = (struct mpsc_pdata *)pdev->dev.platform_data;
283 pdata->max_idle = 40;
284 pdata->default_baud = CPCI690_MPSC_BAUD;
285 pdata->brg_clk_src = CPCI690_MPSC_CLK_SRC;
286 pdata->brg_clk_freq = cpci690_get_bus_freq();
290 cpci690_platform_notify(struct device *dev)
294 void ((*rtn)(struct platform_device *pdev));
296 { MPSC_CTLR_NAME ".0", cpci690_fixup_mpsc_pdata },
297 { MPSC_CTLR_NAME ".1", cpci690_fixup_mpsc_pdata },
299 struct platform_device *pdev;
302 if (dev && dev->bus_id)
303 for (i=0; i<ARRAY_SIZE(dev_map); i++)
304 if (!strncmp(dev->bus_id, dev_map[i].bus_id,
307 pdev = container_of(dev,
308 struct platform_device, dev);
309 dev_map[i].rtn(pdev);
317 cpci690_reset_board(void)
322 out_8((cpci690_br_base + CPCI690_BR_SW_RESET), 0x11);
325 panic("restart failed\n");
329 cpci690_restart(char *cmd)
331 cpci690_reset_board();
342 cpci690_power_off(void)
349 cpci690_show_cpuinfo(struct seq_file *m)
353 seq_printf(m, "cpu MHz\t\t: %d\n",
354 (cpci690_get_cpu_freq() + 500000) / 1000000);
355 seq_printf(m, "bus MHz\t\t: %d\n",
356 (cpci690_get_bus_freq() + 500000) / 1000000);
357 seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n");
358 seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n");
359 seq_printf(m, "FPGA Revision\t: %d\n",
360 in_8(cpci690_br_base + CPCI690_BR_MEM_CTLR) >> 5);
363 case MV64x60_TYPE_GT64260A:
366 case MV64x60_TYPE_GT64260B:
369 case MV64x60_TYPE_MV64360:
372 case MV64x60_TYPE_MV64460:
378 seq_printf(m, "bridge type\t: %s\n", s);
379 seq_printf(m, "bridge rev\t: 0x%x\n", bh.rev);
380 #if defined(CONFIG_NOT_COHERENT_CACHE)
381 seq_printf(m, "coherency\t: %s\n", "off");
383 seq_printf(m, "coherency\t: %s\n", "on");
390 cpci690_calibrate_decr(void)
394 freq = cpci690_get_bus_freq() / 4;
396 printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
397 freq/1000000, freq%1000000);
399 tb_ticks_per_jiffy = freq / HZ;
400 tb_to_us = mulhwu_scale_factor(freq, 1000000);
403 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC)
407 io_block_mapping(CONFIG_MV64X60_NEW_BASE, CONFIG_MV64X60_NEW_BASE,
408 128 * 1024, _PAGE_IO);
413 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
414 unsigned long r6, unsigned long r7)
416 parse_bootinfo(find_bootinfo());
418 #ifdef CONFIG_BLK_DEV_INITRD
419 /* take care of initrd if we have one */
421 initrd_start = r4 + KERNELBASE;
422 initrd_end = r5 + KERNELBASE;
424 #endif /* CONFIG_BLK_DEV_INITRD */
428 ppc_md.setup_arch = cpci690_setup_arch;
429 ppc_md.show_cpuinfo = cpci690_show_cpuinfo;
430 ppc_md.init_IRQ = gt64260_init_irq;
431 ppc_md.get_irq = gt64260_get_irq;
432 ppc_md.restart = cpci690_restart;
433 ppc_md.power_off = cpci690_power_off;
434 ppc_md.halt = cpci690_halt;
435 ppc_md.time_init = todc_time_init;
436 ppc_md.set_rtc_time = todc_set_rtc_time;
437 ppc_md.get_rtc_time = todc_get_rtc_time;
438 ppc_md.nvram_read_val = todc_direct_read_val;
439 ppc_md.nvram_write_val = todc_direct_write_val;
440 ppc_md.calibrate_decr = cpci690_calibrate_decr;
442 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC)
443 ppc_md.setup_io_mappings = cpci690_map_io;
444 #ifdef CONFIG_SERIAL_TEXT_DEBUG
445 ppc_md.progress = mv64x60_mpsc_progress;
446 mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE);
447 #endif /* CONFIG_SERIAL_TEXT_DEBUG */
448 #endif /* defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC) */
450 #if defined(CONFIG_SERIAL_MPSC)
451 platform_notify = cpci690_platform_notify;