2 * (C) Copyright 2007 - 2008
3 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
30 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
34 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
38 #include "../common/common.h"
41 * I/O Port configuration table
43 * if conf is 1, then that port pin will be configured at boot time
44 * according to the five values podr/pdir/ppar/psor/pdat for that entry
46 const iop_conf_t iop_conf_tab[4][32] = {
49 { /* conf ppar psor pdir podr pdat */
50 { 0, 0, 0, 0, 0, 0 }, /* PA31 */
51 { 0, 0, 0, 0, 0, 0 }, /* PA30 */
52 { 0, 0, 0, 0, 0, 0 }, /* PA29 */
53 { 0, 0, 0, 0, 0, 0 }, /* PA28 */
54 { 0, 0, 0, 0, 0, 0 }, /* PA27 */
55 { 0, 0, 0, 0, 0, 0 }, /* PA26 */
56 { 0, 0, 0, 0, 0, 0 }, /* PA25 */
57 { 0, 0, 0, 0, 0, 0 }, /* PA24 */
58 { 0, 0, 0, 0, 0, 0 }, /* PA23 */
59 { 0, 0, 0, 0, 0, 0 }, /* PA22 */
60 { 0, 0, 0, 0, 0, 0 }, /* PA21 */
61 { 0, 0, 0, 0, 0, 0 }, /* PA20 */
62 { 0, 0, 0, 0, 0, 0 }, /* PA19 */
63 { 0, 0, 0, 0, 0, 0 }, /* PA18 */
64 { 0, 0, 0, 0, 0, 0 }, /* PA17 */
65 { 0, 0, 0, 0, 0, 0 }, /* PA16 */
66 { 0, 0, 0, 0, 0, 0 }, /* PA15 */
67 { 0, 0, 0, 0, 0, 0 }, /* PA14 */
68 { 0, 0, 0, 0, 0, 0 }, /* PA13 */
69 { 0, 0, 0, 0, 0, 0 }, /* PA12 */
70 { 0, 0, 0, 0, 0, 0 }, /* PA11 */
71 { 0, 0, 0, 0, 0, 0 }, /* PA10 */
72 { 1, 1, 0, 1, 0, 0 }, /* PA9 SMC2 TxD */
73 { 1, 1, 0, 0, 0, 0 }, /* PA8 SMC2 RxD */
74 { 0, 0, 0, 0, 0, 0 }, /* PA7 */
75 { 0, 0, 0, 0, 0, 0 }, /* PA6 */
76 { 0, 0, 0, 0, 0, 0 }, /* PA5 */
77 { 0, 0, 0, 0, 0, 0 }, /* PA4 */
78 { 0, 0, 0, 0, 0, 0 }, /* PA3 */
79 { 0, 0, 0, 0, 0, 0 }, /* PA2 */
80 { 0, 0, 0, 0, 0, 0 }, /* PA1 */
81 { 0, 0, 0, 0, 0, 0 } /* PA0 */
85 { /* conf ppar psor pdir podr pdat */
86 { 0, 0, 0, 0, 0, 0 }, /* PB31 */
87 { 0, 0, 0, 0, 0, 0 }, /* PB30 */
88 { 0, 0, 0, 0, 0, 0 }, /* PB29 */
89 { 0, 0, 0, 0, 0, 0 }, /* PB28 */
90 { 0, 0, 0, 0, 0, 0 }, /* PB27 */
91 { 0, 0, 0, 0, 0, 0 }, /* PB26 */
92 { 0, 0, 0, 0, 0, 0 }, /* PB25 */
93 { 0, 0, 0, 0, 0, 0 }, /* PB24 */
94 { 0, 0, 0, 0, 0, 0 }, /* PB23 */
95 { 0, 0, 0, 0, 0, 0 }, /* PB22 */
96 { 0, 0, 0, 0, 0, 0 }, /* PB21 */
97 { 0, 0, 0, 0, 0, 0 }, /* PB20 */
98 { 0, 0, 0, 0, 0, 0 }, /* PB19 */
99 { 0, 0, 0, 0, 0, 0 }, /* PB18 */
100 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
101 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
102 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
103 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
104 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
105 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
106 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
107 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
108 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
109 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
110 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
111 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
112 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
113 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
114 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
115 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
116 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
117 { 0, 0, 0, 0, 0, 0 } /* non-existent */
121 { /* conf ppar psor pdir podr pdat */
122 { 0, 0, 0, 0, 0, 0 }, /* PC31 */
123 { 0, 0, 0, 0, 0, 0 }, /* PC30 */
124 { 0, 0, 0, 0, 0, 0 }, /* PC29 */
125 { 0, 0, 0, 0, 0, 0 }, /* PC28 */
126 { 0, 0, 0, 0, 0, 0 }, /* PC27 */
127 { 0, 0, 0, 0, 0, 0 }, /* PC26 */
128 { 1, 1, 0, 0, 0, 0 }, /* PC25 RxClk */
129 { 1, 1, 0, 0, 0, 0 }, /* PC24 TxClk */
130 { 0, 0, 0, 0, 0, 0 }, /* PC23 */
131 { 0, 0, 0, 0, 0, 0 }, /* PC22 */
132 { 0, 0, 0, 0, 0, 0 }, /* PC21 */
133 { 0, 0, 0, 0, 0, 0 }, /* PC20 */
134 { 0, 0, 0, 0, 0, 0 }, /* PC19 */
135 { 0, 0, 0, 0, 0, 0 }, /* PC18 */
136 { 0, 0, 0, 0, 0, 0 }, /* PC17 */
137 { 0, 0, 0, 0, 0, 0 }, /* PC16 */
138 { 0, 0, 0, 0, 0, 0 }, /* PC15 */
139 { 0, 0, 0, 0, 0, 0 }, /* PC14 */
140 { 0, 0, 0, 0, 0, 0 }, /* PC13 */
141 { 0, 0, 0, 0, 0, 0 }, /* PC12 */
142 { 0, 0, 0, 0, 0, 0 }, /* PC11 */
143 { 0, 0, 0, 0, 0, 0 }, /* PC10 */
144 { 1, 1, 0, 0, 0, 0 }, /* PC9 SCC4: CTS */
145 { 1, 1, 0, 0, 0, 0 }, /* PC8 SCC4: CD */
146 { 0, 0, 0, 0, 0, 0 }, /* PC7 */
147 { 0, 0, 0, 0, 0, 0 }, /* PC6 */
148 { 0, 0, 0, 0, 0, 0 }, /* PC5 */
149 { 0, 0, 0, 0, 0, 0 }, /* PC4 */
150 { 0, 0, 0, 0, 0, 0 }, /* PC3 */
151 { 0, 0, 0, 0, 0, 0 }, /* PC2 */
152 { 0, 0, 0, 0, 0, 0 }, /* PC1 */
153 { 0, 0, 0, 0, 0, 0 }, /* PC0 */
157 { /* conf ppar psor pdir podr pdat */
158 { 0, 0, 0, 0, 0, 0 }, /* PD31 */
159 { 0, 0, 0, 0, 0, 0 }, /* PD30 */
160 { 0, 0, 0, 0, 0, 0 }, /* PD29 */
161 { 0, 0, 0, 0, 0, 0 }, /* PD28 */
162 { 0, 0, 0, 0, 0, 0 }, /* PD27 */
163 { 0, 0, 0, 0, 0, 0 }, /* PD26 */
164 { 0, 0, 0, 0, 0, 0 }, /* PD25 */
165 { 0, 0, 0, 0, 0, 0 }, /* PD24 */
166 { 0, 0, 0, 0, 0, 0 }, /* PD23 */
167 { 1, 1, 0, 0, 0, 0 }, /* PD22 SCC4: RXD */
168 { 1, 1, 0, 1, 0, 0 }, /* PD21 SCC4: TXD */
169 { 1, 1, 0, 1, 0, 0 }, /* PD20 SCC4: RTS */
170 { 0, 0, 0, 0, 0, 0 }, /* PD19 */
171 { 0, 0, 0, 0, 0, 0 }, /* PD18 */
172 { 0, 0, 0, 0, 0, 0 }, /* PD17 */
173 { 0, 0, 0, 0, 0, 0 }, /* PD16 */
174 #if defined(CONFIG_HARD_I2C)
175 { 1, 1, 1, 0, 1, 0 }, /* PD15 I2C SDA */
176 { 1, 1, 1, 0, 1, 0 }, /* PD14 I2C SCL */
178 { 1, 0, 0, 0, 1, 1 }, /* PD15 */
179 { 1, 0, 0, 1, 1, 1 }, /* PD14 */
181 { 0, 0, 0, 0, 0, 0 }, /* PD13 */
182 { 0, 0, 0, 0, 0, 0 }, /* PD12 */
183 { 0, 0, 0, 0, 0, 0 }, /* PD11 */
184 { 0, 0, 0, 0, 0, 0 }, /* PD10 */
185 { 0, 0, 0, 0, 0, 0 }, /* PD9 */
186 { 0, 0, 0, 0, 0, 0 }, /* PD8 */
187 { 0, 0, 0, 0, 0, 0 }, /* PD7 */
188 { 0, 0, 0, 0, 0, 0 }, /* PD6 */
189 { 0, 0, 0, 0, 0, 0 }, /* PD5 */
190 { 0, 0, 0, 0, 0, 0 }, /* PD4 */
191 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
192 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
193 { 0, 0, 0, 0, 0, 0 }, /* non-existent */
194 { 0, 0, 0, 0, 0, 0 } /* non-existent */
199 * Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
201 * This routine performs standard 8260 initialization sequence
202 * and calculates the available memory size. It may be called
203 * several times to try different SDRAM configurations on both
204 * 60x and local buses.
206 static long int try_init(memctl8260_t *memctl, ulong sdmr,
207 ulong orx, uchar *base)
214 * We must be able to test a location outsize the maximum legal size
215 * to find out THAT we are outside; but this address still has to be
216 * mapped by the controller. That means, that the initial mapping has
217 * to be (at least) twice as large as the maximum expected size.
219 maxsize = (1 + (~orx | 0x7fff))/* / 2*/;
221 out_be32(&memctl->memc_or1, orx);
224 * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
226 * "At system reset, initialization software must set up the
227 * programmable parameters in the memory controller banks registers
228 * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
229 * system software should execute the following initialization sequence
230 * for each SDRAM device.
232 * 1. Issue a PRECHARGE-ALL-BANKS command
233 * 2. Issue eight CBR REFRESH commands
234 * 3. Issue a MODE-SET command to initialize the mode register
236 * The initial commands are executed by setting P/LSDMR[OP] and
237 * accessing the SDRAM with a single-byte transaction."
239 * The appropriate BRx/ORx registers have already been set when we
240 * get here. The SDRAM can be accessed at the address
241 * CONFIG_SYS_SDRAM_BASE.
244 out_be32(&memctl->memc_psdmr, sdmr | PSDMR_OP_PREA);
247 out_be32(&memctl->memc_psdmr, sdmr | PSDMR_OP_CBRR);
248 for (i = 0; i < 8; i++)
251 out_be32(&memctl->memc_psdmr, sdmr | PSDMR_OP_MRW);
252 /* setting MR on address lines */
253 out_8((uchar *)(base + CONFIG_SYS_MRS_OFFS), c);
255 out_be32(&memctl->memc_psdmr, sdmr | PSDMR_OP_NORM | PSDMR_RFEN);
258 size = get_ram_size((long *)base, maxsize);
259 out_be32(&memctl->memc_or1, orx | ~(size - 1));
264 phys_size_t initdram(int board_type)
266 immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
267 memctl8260_t *memctl = &immap->im_memctl;
271 out_8(&memctl->memc_psrt, CONFIG_SYS_PSRT);
272 out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR);
274 #ifndef CONFIG_SYS_RAMBOOT
277 psize = try_init(memctl, CONFIG_SYS_PSDMR, CONFIG_SYS_OR1,
278 (uchar *) CONFIG_SYS_SDRAM_BASE);
279 #endif /* CONFIG_SYS_RAMBOOT */
288 #if defined(CONFIG_MGCOGE)
289 puts("Board: Keymile mgcoge");
291 puts("Board: Keymile mgcoge3ne");
293 if (ethernet_present())
294 puts(" with PIGGY.");
299 int last_stage_init(void)
301 struct bfticu_iomap *base =
302 (struct bfticu_iomap *)CONFIG_SYS_FPGA_BASE;
305 dip_switch = in_8(&base->mswitch);
306 dip_switch &= BFTICU_DIPSWITCH_MASK;
307 /* dip switch 'full reset' or 'db erase' */
308 if (dip_switch & 0x1 || dip_switch & 0x2) {
309 /* start bootloader */
310 puts("DIP: Enabled\n");
311 setenv("actual_bank", "0");
317 #ifdef CONFIG_MGCOGE3NE
318 static void set_pin(int state, unsigned long mask);
321 * For mgcoge3ne boards, the mgcoge3un control is controlled from
322 * a GPIO line on the PPC CPU. If bobcatreset is set the line
323 * will toggle once what forces the mgocge3un part to restart
326 void handle_mgcoge3un_reset(void)
328 char *bobcatreset = getenv("bobcatreset");
330 if (strcmp(bobcatreset, "true") == 0) {
331 puts("Forcing bobcat reset\n");
332 set_pin(0, 0x00000004); /* clear PD29 to reset arm */
334 set_pin(1, 0x00000004);
336 set_pin(1, 0x00000004); /* set PD29 to not reset arm */
342 * Early board initalization.
344 int board_early_init_r(void)
346 struct km_bec_fpga *base =
347 (struct km_bec_fpga *)CONFIG_SYS_KMBEC_FPGA_BASE;
349 /* setup the UPIOx */
350 /* General Unit Reset disabled, Flash Bank enabled, UnitLed on */
351 out_8(&base->oprth, (WRG_RESET | H_OPORTS_14 | WRG_LED));
352 /* SCC4 enable, halfduplex, FCC1 powerdown */
353 out_8(&base->oprtl, (H_OPORTS_SCC4_ENA | H_OPORTS_SCC4_FD_ENA |
354 H_OPORTS_FCC1_PW_DWN));
356 #ifdef CONFIG_MGCOGE3NE
357 handle_mgcoge3un_reset();
362 int hush_init_var(void)
368 #define SDA_MASK 0x00010000
369 #define SCL_MASK 0x00020000
371 static void set_pin(int state, unsigned long mask)
373 ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
376 setbits_be32(&iop->pdat, mask);
378 clrbits_be32(&iop->pdat, mask);
380 setbits_be32(&iop->pdir, mask);
383 static int get_pin(unsigned long mask)
385 ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
387 clrbits_be32(&iop->pdir, mask);
388 return 0 != (in_be32(&iop->pdat) & mask);
391 void set_sda(int state)
393 set_pin(state, SDA_MASK);
396 void set_scl(int state)
398 set_pin(state, SCL_MASK);
403 return get_pin(SDA_MASK);
408 return get_pin(SCL_MASK);
411 #if defined(CONFIG_HARD_I2C)
412 static void setports(int gpio)
414 ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
417 clrbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK));
418 clrbits_be32(&iop->podr, (SDA_MASK | SCL_MASK));
420 setbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK));
421 clrbits_be32(&iop->pdir, (SDA_MASK | SCL_MASK));
422 setbits_be32(&iop->podr, (SDA_MASK | SCL_MASK));
426 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
427 void ft_board_setup(void *blob, bd_t *bd)
429 ft_cpu_setup(blob, bd);
431 #endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */