2 * arch/ppc/platforms/ev64360.c
4 * Board setup routines for the Marvell EV-64360-BP Evaluation Board.
6 * Author: Lee Nicks <allinux@gmail.com>
8 * Based on code done by Rabeeh Khoury - rabeeh@galileo.co.il
9 * Based on code done by - Mark A. Greer <mgreer@mvista.com>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
16 #include <linux/config.h>
17 #include <linux/kernel.h>
18 #include <linux/pci.h>
19 #include <linux/kdev_t.h>
20 #include <linux/console.h>
21 #include <linux/initrd.h>
22 #include <linux/root_dev.h>
23 #include <linux/delay.h>
24 #include <linux/seq_file.h>
25 #include <linux/bootmem.h>
26 #include <linux/mtd/physmap.h>
27 #include <linux/mv643xx.h>
29 #include <linux/bootimg.h>
35 #include <asm/bootinfo.h>
36 #include <asm/ppcboot.h>
37 #include <asm/mv64x60.h>
38 #include <platforms/ev64360.h>
40 #define BOARD_VENDOR "Marvell"
41 #define BOARD_MACHINE "EV-64360-BP"
43 static struct mv64x60_handle bh;
44 static void __iomem *sram_base;
46 static u32 ev64360_flash_size_0;
47 static u32 ev64360_flash_size_1;
49 static u32 ev64360_bus_frequency;
51 unsigned char __res[sizeof(bd_t)];
54 ev64360_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
60 ev64360_setup_bridge(void)
62 struct mv64x60_setup_info si;
65 memset(&si, 0, sizeof(si));
67 si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
70 si.pci_1.enable_bus = 1;
71 si.pci_1.pci_io.cpu_base = EV64360_PCI1_IO_START_PROC_ADDR;
72 si.pci_1.pci_io.pci_base_hi = 0;
73 si.pci_1.pci_io.pci_base_lo = EV64360_PCI1_IO_START_PCI_ADDR;
74 si.pci_1.pci_io.size = EV64360_PCI1_IO_SIZE;
75 si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
76 si.pci_1.pci_mem[0].cpu_base = EV64360_PCI1_MEM_START_PROC_ADDR;
77 si.pci_1.pci_mem[0].pci_base_hi = EV64360_PCI1_MEM_START_PCI_HI_ADDR;
78 si.pci_1.pci_mem[0].pci_base_lo = EV64360_PCI1_MEM_START_PCI_LO_ADDR;
79 si.pci_1.pci_mem[0].size = EV64360_PCI1_MEM_SIZE;
80 si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
81 si.pci_1.pci_cmd_bits = 0;
82 si.pci_1.latency_timer = 0x80;
84 si.pci_0.enable_bus = 0;
85 si.pci_1.enable_bus = 0;
88 for (i = 0; i < MV64x60_CPU2MEM_WINDOWS; i++) {
89 #if defined(CONFIG_NOT_COHERENT_CACHE)
90 si.cpu_prot_options[i] = 0;
91 si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE;
92 si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE;
93 si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE;
95 si.pci_1.acc_cntl_options[i] =
96 MV64360_PCI_ACC_CNTL_SNOOP_NONE |
97 MV64360_PCI_ACC_CNTL_SWAP_NONE |
98 MV64360_PCI_ACC_CNTL_MBURST_128_BYTES |
99 MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES;
101 si.cpu_prot_options[i] = 0;
102 si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE; /* errata */
103 si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE; /* errata */
104 si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE; /* errata */
106 si.pci_1.acc_cntl_options[i] =
107 MV64360_PCI_ACC_CNTL_SNOOP_WB |
108 MV64360_PCI_ACC_CNTL_SWAP_NONE |
109 MV64360_PCI_ACC_CNTL_MBURST_32_BYTES |
110 MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES;
114 if (mv64x60_init(&bh, &si))
115 printk(KERN_WARNING "Bridge initialization failed.\n");
118 pci_dram_offset = 0; /* sys mem at same addr on PCI & cpu bus */
119 ppc_md.pci_swizzle = common_swizzle;
120 ppc_md.pci_map_irq = ev64360_map_irq;
121 ppc_md.pci_exclude_device = mv64x60_pci_exclude_device;
123 mv64x60_set_bus(&bh, 1, 0);
124 bh.hose_b->first_busno = 0;
125 bh.hose_b->last_busno = 0xff;
129 /* Bridge & platform setup routines */
131 ev64360_intr_setup(void)
133 /* MPP 8, 9, and 10 */
134 mv64x60_clr_bits(&bh, MV64x60_MPP_CNTL_1, 0xfff);
137 * Define GPP 8,9,and 10 interrupt polarity as active low
138 * input signal and level triggered
140 mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, 0x700);
141 mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, 0x700);
143 /* Config GPP intr ctlr to respond to level trigger */
144 mv64x60_set_bits(&bh, MV64x60_COMM_ARBITER_CNTL, (1<<10));
146 /* Erranum FEr PCI-#8 */
147 mv64x60_clr_bits(&bh, MV64x60_PCI0_CMD, (1<<5) | (1<<9));
148 mv64x60_clr_bits(&bh, MV64x60_PCI1_CMD, (1<<5) | (1<<9));
151 * Dismiss and then enable interrupt on GPP interrupt cause
154 mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~0x700);
155 mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, 0x700);
158 * Dismiss and then enable interrupt on CPU #0 high cause reg
159 * BIT25 summarizes GPP interrupts 8-15
161 mv64x60_set_bits(&bh, MV64360_IC_CPU0_INTR_MASK_HI, (1<<25));
165 ev64360_setup_peripherals(void)
169 /* Set up window for boot CS */
170 mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
171 EV64360_BOOT_WINDOW_BASE, EV64360_BOOT_WINDOW_SIZE, 0);
172 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
174 /* We only use the 32-bit flash */
175 mv64x60_get_32bit_window(&bh, MV64x60_CPU2BOOT_WIN, &base,
176 &ev64360_flash_size_0);
177 ev64360_flash_size_1 = 0;
179 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN,
180 EV64360_RTC_WINDOW_BASE, EV64360_RTC_WINDOW_SIZE, 0);
181 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN);
183 mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
184 EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0);
185 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
186 sram_base = ioremap(EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE);
188 /* Set up Enet->SRAM window */
189 mv64x60_set_32bit_window(&bh, MV64x60_ENET2MEM_4_WIN,
190 EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0x2);
191 bh.ci->enable_window_32bit(&bh, MV64x60_ENET2MEM_4_WIN);
193 /* Give enet r/w access to memory region */
194 mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_0, (0x3 << (4 << 1)));
195 mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_1, (0x3 << (4 << 1)));
196 mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_2, (0x3 << (4 << 1)));
198 mv64x60_clr_bits(&bh, MV64x60_PCI1_PCI_DECODE_CNTL, (1 << 3));
199 mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL,
200 ((1 << 0) | (1 << 8) | (1 << 16) | (1 << 24)));
202 #if defined(CONFIG_NOT_COHERENT_CACHE)
203 mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x00160000);
205 mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x001600b2);
209 * Setting the SRAM to 0. Note that this generates parity errors on
210 * internal data path in SRAM since it's first time accessing it
211 * while after reset it's not configured.
213 memset(sram_base, 0, MV64360_SRAM_SIZE);
215 /* set up PCI interrupt controller */
216 ev64360_intr_setup();
220 ev64360_setup_arch(void)
223 ppc_md.progress("ev64360_setup_arch: enter", 0);
227 #ifdef CONFIG_BLK_DEV_INITRD
229 ROOT_DEV = Root_RAM0;
232 #ifdef CONFIG_ROOT_NFS
235 ROOT_DEV = Root_SDA2;
239 * Set up the L2CR register.
241 _set_L2CR(L2CR_L2E | L2CR_L2PE);
244 ppc_md.progress("ev64360_setup_arch: calling setup_bridge", 0);
246 ev64360_setup_bridge();
247 ev64360_setup_peripherals();
248 ev64360_bus_frequency = ev64360_bus_freq();
250 printk(KERN_INFO "%s %s port (C) 2005 Lee Nicks "
251 "(allinux@gmail.com)\n", BOARD_VENDOR, BOARD_MACHINE);
253 ppc_md.progress("ev64360_setup_arch: exit", 0);
256 /* Platform device data fixup routines. */
257 #if defined(CONFIG_SERIAL_MPSC)
259 ev64360_fixup_mpsc_pdata(struct platform_device *pdev)
261 struct mpsc_pdata *pdata;
263 pdata = (struct mpsc_pdata *)pdev->dev.platform_data;
265 pdata->max_idle = 40;
266 pdata->default_baud = EV64360_DEFAULT_BAUD;
267 pdata->brg_clk_src = EV64360_MPSC_CLK_SRC;
269 * TCLK (not SysCLk) is routed to BRG, then to the MPSC. On most parts,
270 * TCLK == SysCLK but on 64460, they are separate pins.
271 * SysCLK can go up to 200 MHz but TCLK can only go up to 133 MHz.
273 pdata->brg_clk_freq = min(ev64360_bus_frequency, MV64x60_TCLK_FREQ_MAX);
277 #if defined(CONFIG_MV643XX_ETH)
279 ev64360_fixup_eth_pdata(struct platform_device *pdev)
281 struct mv643xx_eth_platform_data *eth_pd;
282 static u16 phy_addr[] = {
283 EV64360_ETH0_PHY_ADDR,
284 EV64360_ETH1_PHY_ADDR,
285 EV64360_ETH2_PHY_ADDR,
288 eth_pd = pdev->dev.platform_data;
289 eth_pd->force_phy_addr = 1;
290 eth_pd->phy_addr = phy_addr[pdev->id];
291 eth_pd->tx_queue_size = EV64360_ETH_TX_QUEUE_SIZE;
292 eth_pd->rx_queue_size = EV64360_ETH_RX_QUEUE_SIZE;
297 ev64360_platform_notify(struct device *dev)
301 void ((*rtn)(struct platform_device *pdev));
303 #if defined(CONFIG_SERIAL_MPSC)
304 { MPSC_CTLR_NAME ".0", ev64360_fixup_mpsc_pdata },
305 { MPSC_CTLR_NAME ".1", ev64360_fixup_mpsc_pdata },
307 #if defined(CONFIG_MV643XX_ETH)
308 { MV643XX_ETH_NAME ".0", ev64360_fixup_eth_pdata },
309 { MV643XX_ETH_NAME ".1", ev64360_fixup_eth_pdata },
310 { MV643XX_ETH_NAME ".2", ev64360_fixup_eth_pdata },
313 struct platform_device *pdev;
316 if (dev && dev->bus_id)
317 for (i=0; i<ARRAY_SIZE(dev_map); i++)
318 if (!strncmp(dev->bus_id, dev_map[i].bus_id,
321 pdev = container_of(dev,
322 struct platform_device, dev);
323 dev_map[i].rtn(pdev);
329 #ifdef CONFIG_MTD_PHYSMAP
338 * FLASH Amount: 0xff000000 - 0xffffffff
339 * ------------- -----------------------
340 * Reserved: 0xff000000 - 0xff03ffff
341 * JFFS2 file system: 0xff040000 - 0xffefffff
342 * U-boot: 0xfff00000 - 0xffffffff
345 ev64360_setup_mtd(void)
349 static struct mtd_partition *ptbl;
351 size = ev64360_flash_size_0 + ev64360_flash_size_1;
357 if ((ptbl = kmalloc(ptbl_entries * sizeof(struct mtd_partition),
358 GFP_KERNEL)) == NULL) {
360 printk(KERN_WARNING "Can't alloc MTD partition table\n");
363 memset(ptbl, 0, ptbl_entries * sizeof(struct mtd_partition));
365 ptbl[0].name = "reserved";
367 ptbl[0].size = EV64360_MTD_RESERVED_SIZE;
368 ptbl[1].name = "jffs2";
369 ptbl[1].offset = EV64360_MTD_RESERVED_SIZE;
370 ptbl[1].size = EV64360_MTD_JFFS2_SIZE;
371 ptbl[2].name = "U-BOOT";
372 ptbl[2].offset = EV64360_MTD_RESERVED_SIZE + EV64360_MTD_JFFS2_SIZE;
373 ptbl[2].size = EV64360_MTD_UBOOT_SIZE;
375 physmap_map.size = size;
376 physmap_set_partitions(ptbl, ptbl_entries);
380 arch_initcall(ev64360_setup_mtd);
384 ev64360_restart(char *cmd)
386 ulong i = 0xffffffff;
387 volatile unsigned char * rtc_base = ioremap(EV64360_RTC_WINDOW_BASE,0x4000);
389 /* issue hard reset */
390 rtc_base[0xf] = 0x80;
391 rtc_base[0xc] = 0x00;
392 rtc_base[0xd] = 0x01;
393 rtc_base[0xf] = 0x83;
396 panic("restart failed\n");
407 ev64360_power_off(void)
414 ev64360_show_cpuinfo(struct seq_file *m)
416 seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n");
417 seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n");
418 seq_printf(m, "bus speed\t: %dMHz\n", ev64360_bus_frequency/1000/1000);
424 ev64360_calibrate_decr(void)
428 freq = ev64360_bus_frequency / 4;
430 printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
431 (long)freq / 1000000, (long)freq % 1000000);
433 tb_ticks_per_jiffy = freq / HZ;
434 tb_to_us = mulhwu_scale_factor(freq, 1000000);
438 ev64360_find_end_of_memory(void)
440 return mv64x60_get_mem_size(CONFIG_MV64X60_NEW_BASE,
441 MV64x60_TYPE_MV64360);
445 ev64360_set_bat(void)
448 mtspr(SPRN_DBAT2U, 0xf0001ffe);
449 mtspr(SPRN_DBAT2L, 0xf000002a);
453 #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
457 io_block_mapping(CONFIG_MV64X60_NEW_BASE, \
458 CONFIG_MV64X60_NEW_BASE, \
459 0x00020000, _PAGE_IO);
464 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
465 unsigned long r6, unsigned long r7)
467 parse_bootinfo(find_bootinfo());
469 /* ASSUMPTION: If both r3 (bd_t pointer) and r6 (cmdline pointer)
470 * are non-zero, then we should use the board info from the bd_t
471 * structure and the cmdline pointed to by r6 instead of the
472 * information from birecs, if any. Otherwise, use the information
473 * from birecs as discovered by the preceeding call to
474 * parse_bootinfo(). This rule should work with both PPCBoot, which
475 * uses a bd_t board info structure, and the kernel boot wrapper,
479 /* copy board info structure */
480 memcpy( (void *)__res,(void *)(r3+KERNELBASE), sizeof(bd_t) );
481 /* copy command line */
482 *(char *)(r7+KERNELBASE) = 0;
483 strcpy(cmd_line, (char *)(r6+KERNELBASE));
489 ppc_md.setup_arch = ev64360_setup_arch;
490 ppc_md.show_cpuinfo = ev64360_show_cpuinfo;
491 ppc_md.init_IRQ = mv64360_init_irq;
492 ppc_md.get_irq = mv64360_get_irq;
493 ppc_md.restart = ev64360_restart;
494 ppc_md.power_off = ev64360_power_off;
495 ppc_md.halt = ev64360_halt;
496 ppc_md.find_end_of_memory = ev64360_find_end_of_memory;
497 ppc_md.calibrate_decr = ev64360_calibrate_decr;
499 #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
500 ppc_md.setup_io_mappings = ev64360_map_io;
501 ppc_md.progress = mv64x60_mpsc_progress;
502 mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE);
505 #if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH)
506 platform_notify = ev64360_platform_notify;
509 ev64360_set_bat(); /* Need for ev64360_find_end_of_memory and progress */