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[karo-tx-uboot.git] / board / amcc / kilauea / kilauea.c
1 /*
2  * (C) Copyright 2007
3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23
24 #include <common.h>
25 #include <ppc4xx.h>
26 #include <ppc405.h>
27 #include <libfdt.h>
28 #include <fdt_support.h>
29 #include <asm/processor.h>
30 #include <asm/io.h>
31 #include <asm/errno.h>
32
33 #if defined(CONFIG_PCI)
34 #include <pci.h>
35 #include <asm/4xx_pcie.h>
36 #endif
37
38 DECLARE_GLOBAL_DATA_PTR;
39
40 extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips     */
41
42 /*
43  * Board early initialization function
44  */
45 int board_early_init_f (void)
46 {
47         u32 val;
48
49         /*--------------------------------------------------------------------+
50          | Interrupt controller setup for the AMCC 405EX(r) PINE evaluation board.
51          +--------------------------------------------------------------------+
52         +---------------------------------------------------------------------+
53         |Interrupt| Source                            | Pol.  | Sensi.| Crit. |
54         +---------+-----------------------------------+-------+-------+-------+
55         | IRQ 00  | UART0                             | High  | Level | Non   |
56         | IRQ 01  | UART1                             | High  | Level | Non   |
57         | IRQ 02  | IIC0                              | High  | Level | Non   |
58         | IRQ 03  | TBD                               | High  | Level | Non   |
59         | IRQ 04  | TBD                               | High  | Level | Non   |
60         | IRQ 05  | EBM                               | High  | Level | Non   |
61         | IRQ 06  | BGI                               | High  | Level | Non   |
62         | IRQ 07  | IIC1                              | Rising| Edge  | Non   |
63         | IRQ 08  | SPI                               | High  | Lvl/ed| Non   |
64         | IRQ 09  | External IRQ 0 - (PCI-Express)    | pgm H | Pgm   | Non   |
65         | IRQ 10  | MAL TX EOB                        | High  | Level | Non   |
66         | IRQ 11  | MAL RX EOB                        | High  | Level | Non   |
67         | IRQ 12  | DMA Channel 0 FIFO Full           | High  | Level | Non   |
68         | IRQ 13  | DMA Channel 0 Stat FIFO           | High  | Level | Non   |
69         | IRQ 14  | DMA Channel 1 FIFO Full           | High  | Level | Non   |
70         | IRQ 15  | DMA Channel 1 Stat FIFO           | High  | Level | Non   |
71         | IRQ 16  | PCIE0 AL                          | high  | Level | Non   |
72         | IRQ 17  | PCIE0 VPD access                  | rising| Edge  | Non   |
73         | IRQ 18  | PCIE0 hot reset request           | rising| Edge  | Non   |
74         | IRQ 19  | PCIE0 hot reset request           | faling| Edge  | Non   |
75         | IRQ 20  | PCIE0 TCR                         | High  | Level | Non   |
76         | IRQ 21  | PCIE0 MSI level0                  | High  | Level | Non   |
77         | IRQ 22  | PCIE0 MSI level1                  | High  | Level | Non   |
78         | IRQ 23  | Security EIP-94                   | High  | Level | Non   |
79         | IRQ 24  | EMAC0 interrupt                   | High  | Level | Non   |
80         | IRQ 25  | EMAC1 interrupt                   | High  | Level | Non   |
81         | IRQ 26  | PCIE0 MSI level2                  | High  | Level | Non   |
82         | IRQ 27  | External IRQ 4                    | pgm H | Pgm   | Non   |
83         | IRQ 28  | UIC2 Non-critical Int.            | High  | Level | Non   |
84         | IRQ 29  | UIC2 Critical Interrupt           | High  | Level | Crit. |
85         | IRQ 30  | UIC1 Non-critical Int.            | High  | Level | Non   |
86         | IRQ 31  | UIC1 Critical Interrupt           | High  | Level | Crit. |
87         |----------------------------------------------------------------------
88         | IRQ 32  | MAL Serr                          | High  | Level | Non   |
89         | IRQ 33  | MAL Txde                          | High  | Level | Non   |
90         | IRQ 34  | MAL Rxde                          | High  | Level | Non   |
91         | IRQ 35  | PCIE0 bus master VC0              |falling| Edge  | Non   |
92         | IRQ 36  | PCIE0 DCR Error                   | High  | Level | Non   |
93         | IRQ 37  | EBC                               | High  |Lvl Edg| Non   |
94         | IRQ 38  | NDFC                              | High  | Level | Non   |
95         | IRQ 39  | GPT Compare Timer 8               | Risin | Edge  | Non   |
96         | IRQ 40  | GPT Compare Timer 9               | Risin | Edge  | Non   |
97         | IRQ 41  | PCIE1 AL                          | high  | Level | Non   |
98         | IRQ 42  | PCIE1 VPD access                  | rising| edge  | Non   |
99         | IRQ 43  | PCIE1 hot reset request           | rising| Edge  | Non   |
100         | IRQ 44  | PCIE1 hot reset request           | faling| Edge  | Non   |
101         | IRQ 45  | PCIE1 TCR                         | High  | Level | Non   |
102         | IRQ 46  | PCIE1 bus master VC0              |falling| Edge  | Non   |
103         | IRQ 47  | GPT Compare Timer 3               | Risin | Edge  | Non   |
104         | IRQ 48  | GPT Compare Timer 4               | Risin | Edge  | Non   |
105         | IRQ 49  | Ext. IRQ 7                        |pgm/Fal|pgm/Lvl| Non   |
106         | IRQ 50  | Ext. IRQ 8 -                      |pgm (H)|pgm/Lvl| Non   |
107         | IRQ 51  | Ext. IRQ 9                        |pgm (H)|pgm/Lvl| Non   |
108         | IRQ 52  | GPT Compare Timer 5               | high  | Edge  | Non   |
109         | IRQ 53  | GPT Compare Timer 6               | high  | Edge  | Non   |
110         | IRQ 54  | GPT Compare Timer 7               | high  | Edge  | Non   |
111         | IRQ 55  | Serial ROM                        | High  | Level | Non   |
112         | IRQ 56  | GPT Decrement Pulse               | High  | Level | Non   |
113         | IRQ 57  | Ext. IRQ 2                        |pgm/Fal|pgm/Lvl| Non   |
114         | IRQ 58  | Ext. IRQ 5                        |pgm/Fal|pgm/Lvl| Non   |
115         | IRQ 59  | Ext. IRQ 6                        |pgm/Fal|pgm/Lvl| Non   |
116         | IRQ 60  | EMAC0 Wake-up                     | High  | Level | Non   |
117         | IRQ 61  | Ext. IRQ 1                        |pgm/Fal|pgm/Lvl| Non   |
118         | IRQ 62  | EMAC1 Wake-up                     | High  | Level | Non   |
119         |----------------------------------------------------------------------
120         | IRQ 64  | PE0 AL                            | High  | Level | Non   |
121         | IRQ 65  | PE0 VPD Access                    | Risin | Edge  | Non   |
122         | IRQ 66  | PE0 Hot Reset Request             | Risin | Edge  | Non   |
123         | IRQ 67  | PE0 Hot Reset Request             | Falli | Edge  | Non   |
124         | IRQ 68  | PE0 TCR                           | High  | Level | Non   |
125         | IRQ 69  | PE0 BusMaster VCO                 | Falli | Edge  | Non   |
126         | IRQ 70  | PE0 DCR Error                     | High  | Level | Non   |
127         | IRQ 71  | Reserved                          | N/A   | N/A   | Non   |
128         | IRQ 72  | PE1 AL                            | High  | Level | Non   |
129         | IRQ 73  | PE1 VPD Access                    | Risin | Edge  | Non   |
130         | IRQ 74  | PE1 Hot Reset Request             | Risin | Edge  | Non   |
131         | IRQ 75  | PE1 Hot Reset Request             | Falli | Edge  | Non   |
132         | IRQ 76  | PE1 TCR                           | High  | Level | Non   |
133         | IRQ 77  | PE1 BusMaster VCO                 | Falli | Edge  | Non   |
134         | IRQ 78  | PE1 DCR Error                     | High  | Level | Non   |
135         | IRQ 79  | Reserved                          | N/A   | N/A   | Non   |
136         | IRQ 80  | PE2 AL                            | High  | Level | Non   |
137         | IRQ 81  | PE2 VPD Access                    | Risin | Edge  | Non   |
138         | IRQ 82  | PE2 Hot Reset Request             | Risin | Edge  | Non   |
139         | IRQ 83  | PE2 Hot Reset Request             | Falli | Edge  | Non   |
140         | IRQ 84  | PE2 TCR                           | High  | Level | Non   |
141         | IRQ 85  | PE2 BusMaster VCO                 | Falli | Edge  | Non   |
142         | IRQ 86  | PE2 DCR Error                     | High  | Level | Non   |
143         | IRQ 87  | Reserved                          | N/A   | N/A   | Non   |
144         | IRQ 88  | External IRQ(5)                   | Progr | Progr | Non   |
145         | IRQ 89  | External IRQ 4 - Ethernet         | Progr | Progr | Non   |
146         | IRQ 90  | External IRQ 3 - PCI-X            | Progr | Progr | Non   |
147         | IRQ 91  | External IRQ 2 - PCI-X            | Progr | Progr | Non   |
148         | IRQ 92  | External IRQ 1 - PCI-X            | Progr | Progr | Non   |
149         | IRQ 93  | External IRQ 0 - PCI-X            | Progr | Progr | Non   |
150         | IRQ 94  | Reserved                          | N/A   | N/A   | Non   |
151         | IRQ 95  | Reserved                          | N/A   | N/A   | Non   |
152         |---------------------------------------------------------------------
153         +---------+-----------------------------------+-------+-------+------*/
154         /*--------------------------------------------------------------------+
155          | Initialise UIC registers.  Clear all interrupts.  Disable all
156          | interrupts.
157          | Set critical interrupt values.  Set interrupt polarities.  Set
158          | interrupt trigger levels.  Make bit 0 High  priority.  Clear all
159          | interrupts again.
160          +-------------------------------------------------------------------*/
161
162         mtdcr (UIC2SR, 0xffffffff);     /* Clear all interrupts */
163         mtdcr (UIC2ER, 0x00000000);     /* disable all interrupts */
164         mtdcr (UIC2CR, 0x00000000);     /* Set Critical / Non Critical interrupts */
165         mtdcr (UIC2PR, 0xf7ffffff);     /* Set Interrupt Polarities */
166         mtdcr (UIC2TR, 0x01e1fff8);     /* Set Interrupt Trigger Levels */
167         mtdcr (UIC2VR, 0x00000001);     /* Set Vect base=0,INT31 Highest priority */
168         mtdcr (UIC2SR, 0x00000000);     /* clear all interrupts */
169         mtdcr (UIC2SR, 0xffffffff);     /* clear all interrupts */
170
171         mtdcr (UIC1SR, 0xffffffff);     /* Clear all interrupts */
172         mtdcr (UIC1ER, 0x00000000);     /* disable all interrupts */
173         mtdcr (UIC1CR, 0x00000000);     /* Set Critical / Non Critical interrupts */
174         mtdcr (UIC1PR, 0xfffac785);     /* Set Interrupt Polarities */
175         mtdcr (UIC1TR, 0x001d0040);     /* Set Interrupt Trigger Levels */
176         mtdcr (UIC1VR, 0x00000001);     /* Set Vect base=0,INT31 Highest priority */
177         mtdcr (UIC1SR, 0x00000000);     /* clear all interrupts */
178         mtdcr (UIC1SR, 0xffffffff);     /* clear all interrupts */
179
180         mtdcr (UIC0SR, 0xffffffff);     /* Clear all interrupts */
181         mtdcr (UIC0ER, 0x0000000a);     /* Disable all interrupts */
182                                         /* Except cascade UIC0 and UIC1 */
183         mtdcr (UIC0CR, 0x00000000);     /* Set Critical / Non Critical interrupts */
184         mtdcr (UIC0PR, 0xffbfefef);     /* Set Interrupt Polarities */
185         mtdcr (UIC0TR, 0x00007000);     /* Set Interrupt Trigger Levels */
186         mtdcr (UIC0VR, 0x00000001);     /* Set Vect base=0,INT31 Highest priority */
187         mtdcr (UIC0SR, 0x00000000);     /* clear all interrupts */
188         mtdcr (UIC0SR, 0xffffffff);     /* clear all interrupts */
189
190         /*
191          * Note: Some cores are still in reset when the chip starts, so
192          * take them out of reset
193          */
194         mtsdr(SDR0_SRST, 0);
195
196         /* Configure 405EX for NAND usage */
197         val = SDR0_CUST0_MUX_NDFC_SEL |
198                 SDR0_CUST0_NDFC_ENABLE |
199                 SDR0_CUST0_NDFC_BW_8_BIT |
200                 SDR0_CUST0_NRB_BUSY |
201                 (0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
202         mtsdr(SDR0_CUST0, val);
203
204         /*
205          * Configure PFC (Pin Function Control) registers
206          * -> Enable USB
207          */
208         val = SDR0_PFC1_USBEN | SDR0_PFC1_USBBIGEN | SDR0_PFC1_GPT_FREQ;
209         mtsdr(SDR0_PFC1, val);
210
211         /*
212          * Configure FPGA register with PCIe reset
213          */
214         out_be32((void *)CONFIG_SYS_FPGA_BASE, 0xff570cc4);     /* assert PCIe reset */
215         mdelay(50);
216         out_be32((void *)CONFIG_SYS_FPGA_BASE, 0xff570cc7);     /* deassert PCIe reset */
217
218         return 0;
219 }
220
221 int misc_init_r(void)
222 {
223 #ifdef CONFIG_ENV_IS_IN_FLASH
224         /* Monitor protection ON by default */
225         flash_protect(FLAG_PROTECT_SET,
226                       -CONFIG_SYS_MONITOR_LEN,
227                       0xffffffff,
228                       &flash_info[0]);
229 #endif
230
231         return 0;
232 }
233
234 static int is_405exr(void)
235 {
236         u32 pvr = get_pvr();
237
238         if (pvr & 0x00000004)
239                 return 0;               /* bit 2 set -> 405EX */
240
241         return 1;                       /* bit 2 cleared -> 405EXr */
242 }
243
244 int board_emac_count(void)
245 {
246         /*
247          * 405EXr only has one EMAC interface, 405EX has two
248          */
249         if (is_405exr())
250                 return 1;
251         else
252                 return 2;
253 }
254
255 static int board_pcie_count(void)
256 {
257         /*
258          * 405EXr only has one EMAC interface, 405EX has two
259          */
260         if (is_405exr())
261                 return 1;
262         else
263                 return 2;
264 }
265
266 int checkboard (void)
267 {
268         char *s = getenv("serial#");
269
270         if (is_405exr())
271                 printf("Board: Haleakala - AMCC PPC405EXr Evaluation Board");
272         else
273                 printf("Board: Kilauea - AMCC PPC405EX Evaluation Board");
274
275         if (s != NULL) {
276                 puts(", serial# ");
277                 puts(s);
278         }
279         putc('\n');
280
281         return (0);
282 }
283
284 /*************************************************************************
285  *  pci_pre_init
286  *
287  *  This routine is called just prior to registering the hose and gives
288  *  the board the opportunity to check things. Returning a value of zero
289  *  indicates that things are bad & PCI initialization should be aborted.
290  *
291  *      Different boards may wish to customize the pci controller structure
292  *      (add regions, override default access routines, etc) or perform
293  *      certain pre-initialization actions.
294  *
295  ************************************************************************/
296 #if defined(CONFIG_PCI)
297 int pci_pre_init(struct pci_controller * hose )
298 {
299         return 0;
300 }
301 #endif  /* defined(CONFIG_PCI) */
302
303 #ifdef CONFIG_PCI
304 static struct pci_controller pcie_hose[2] = {{0},{0}};
305
306 void pcie_setup_hoses(int busno)
307 {
308         struct pci_controller *hose;
309         int i, bus;
310         int ret = 0;
311         bus = busno;
312         char *env;
313         unsigned int delay;
314
315         for (i = 0; i < board_pcie_count(); i++) {
316
317                 if (is_end_point(i))
318                         ret = ppc4xx_init_pcie_endport(i);
319                 else
320                         ret = ppc4xx_init_pcie_rootport(i);
321                 if (ret == -ENODEV)
322                         continue;
323                 if (ret) {
324                         printf("PCIE%d: initialization as %s failed\n", i,
325                                is_end_point(i) ? "endpoint" : "root-complex");
326                         continue;
327                 }
328
329                 hose = &pcie_hose[i];
330                 hose->first_busno = bus;
331                 hose->last_busno = bus;
332                 hose->current_busno = bus;
333
334                 /* setup mem resource */
335                 pci_set_region(hose->regions + 0,
336                                CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
337                                CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
338                                CONFIG_SYS_PCIE_MEMSIZE,
339                                PCI_REGION_MEM);
340                 hose->region_count = 1;
341                 pci_register_hose(hose);
342
343                 if (is_end_point(i)) {
344                         ppc4xx_setup_pcie_endpoint(hose, i);
345                         /*
346                          * Reson for no scanning is endpoint can not generate
347                          * upstream configuration accesses.
348                          */
349                 } else {
350                         ppc4xx_setup_pcie_rootpoint(hose, i);
351                         env = getenv ("pciscandelay");
352                         if (env != NULL) {
353                                 delay = simple_strtoul(env, NULL, 10);
354                                 if (delay > 5)
355                                         printf("Warning, expect noticable delay before "
356                                                "PCIe scan due to 'pciscandelay' value!\n");
357                                 mdelay(delay * 1000);
358                         }
359
360                         /*
361                          * Config access can only go down stream
362                          */
363                         hose->last_busno = pci_hose_scan(hose);
364                         bus = hose->last_busno + 1;
365                 }
366         }
367 }
368 #endif
369
370 #if defined(CONFIG_POST)
371 /*
372  * Returns 1 if keys pressed to start the power-on long-running tests
373  * Called from board_init_f().
374  */
375 int post_hotkeys_pressed(void)
376 {
377         return 0;       /* No hotkeys supported */
378 }
379 #endif /* CONFIG_POST */