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Heiko Schocher6dedf3d2006-12-21 16:14:48 +01001/*
2 * (C) Copyright 2006
3 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
4 *
5 * (C) Copyright 2003-2004
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 *
8 * (C) Copyright 2004
9 * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
10 *
11 * (C) Copyright 2004
12 * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
13 *
14 * See file CREDITS for list of people who contributed to this
15 * project.
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 * MA 02111-1307 USA
31 */
32
33#include <common.h>
Heiko Schocherf8450822009-12-01 19:30:47 +010034#include <fdt_support.h>
Heiko Schocher6dedf3d2006-12-21 16:14:48 +010035#include <mpc5xxx.h>
36#include <pci.h>
37#include <malloc.h>
38
39/* some SIMPLE GPIO Pins */
40#define GPIO_USB_8 (31-12)
41#define GPIO_USB_7 (31-13)
42#define GPIO_USB_6 (31-14)
43#define GPIO_USB_0 (31-15)
44#define GPIO_PSC3_7 (31-18)
45#define GPIO_PSC3_6 (31-19)
46#define GPIO_PSC3_1 (31-22)
47#define GPIO_PSC3_0 (31-23)
48
49/* some simple Interrupt GPIO Pins */
50#define GPIO_PSC3_8 2
51#define GPIO_USB1_9 3
52
53#define GPT_OUT_0 0x00000027
54#define GPT_OUT_1 0x00000037
55#define GPT_DISABLE 0x00000000 /* GPT pin disabled */
56
57#define GP_SIMP_ENABLE_O(n, v) {pgpio->simple_dvo |= (v << n); \
58 pgpio->simple_ddr |= (1 << n); \
59 pgpio->simple_gpioe |= (1 << n); \
60 }
61
62#define GP_SIMP_ENABLE_I(n) { pgpio->simple_ddr |= ~(1 << n); \
63 pgpio->simple_gpioe |= (1 << n); \
64 }
65
66#define GP_SIMP_SET_O(n, v) (pgpio->simple_dvo = v ? \
67 (pgpio->simple_dvo | (1 << n)) : \
68 (pgpio->simple_dvo & ~(1 << n)) )
Wolfgang Denkf11033e2007-01-15 13:41:04 +010069
Heiko Schocher6dedf3d2006-12-21 16:14:48 +010070#define GP_SIMP_GET_O(n) ((pgpio->simple_dvo >> n) & 1)
71#define GP_SIMP_GET_I(n) ((pgpio->simple_ival >> n) & 1)
72
Heiko Schocher6dedf3d2006-12-21 16:14:48 +010073#define GP_SINT_SET_O(n, v) (pgpio->sint_dvo = v ? \
74 (pgpio->sint_dvo | (1 << n)) : \
75 (pgpio->sint_dvo & ~(1 << n)) )
76
77#define GP_SINT_ENABLE_O(n, v) {pgpio->sint_ode &= ~(1 << n); \
78 pgpio->sint_ddr |= (1 << n); \
79 GP_SINT_SET_O(n, v); \
80 pgpio->sint_gpioe |= (1 << n); \
81 }
82
83#define GP_SINT_ENABLE_I(n) { pgpio->sint_ddr |= ~(1 << n); \
84 pgpio->sint_gpioe |= (1 << n); \
85 }
86
87#define GP_SINT_GET_O(n) ((pgpio->sint_ival >> n) & 1)
88#define GP_SINT_GET_I(n) ((pgpio-ntt_ival >> n) & 1)
89
90#define GP_TIMER_ENABLE_O(n, v) ( \
91 ((volatile struct mpc5xxx_gpt *)(MPC5XXX_GPT + n))->emsr = v ? \
92 GPT_OUT_1 : \
93 GPT_OUT_0 )
94
95#define GP_TIMER_SET_O(n, v) GP_TIMER_ENABLE_O(n, v)
96
97#define GP_TIMER_GET_O(n, v) ( \
98 (((volatile struct mpc5xxx_gpt *)(MPC5XXX_GPT + n))->emsr & 0x10) >> 4)
99
100#define GP_TIMER_GET_I(n, v) ( \
101 (((volatile struct mpc5xxx_gpt *)(MPC5XXX_GPT + n))->sr & 0x100) >> 8)
102
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200103#ifndef CONFIG_SYS_RAMBOOT
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100104static void sdram_start (int hi_addr)
105{
106 long hi_addr_bit = hi_addr ? 0x01000000 : 0;
107
108 /* unlock mode register */
109 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
110 __asm__ volatile ("sync");
111
112 /* precharge all banks */
113 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
114 __asm__ volatile ("sync");
115
116#if SDRAM_DDR
117 /* set mode register: extended mode */
118 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
119 __asm__ volatile ("sync");
120
121 /* set mode register: reset DLL */
122 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
123 __asm__ volatile ("sync");
124#endif
125
126 /* precharge all banks */
127 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
128 __asm__ volatile ("sync");
129
130 /* auto refresh */
131 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
132 __asm__ volatile ("sync");
133
134 /* set mode register */
135 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
136 __asm__ volatile ("sync");
137
138 /* normal operation */
139 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
140 __asm__ volatile ("sync");
141}
142#endif
143
144/*
145 * ATTENTION: Although partially referenced initdram does NOT make real use
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200146 * use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100147 * is something else than 0x00000000.
148 */
149
Becky Bruce9973e3c2008-06-09 16:03:40 -0500150phys_size_t initdram (int board_type)
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100151{
152 ulong dramsize = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200153#ifndef CONFIG_SYS_RAMBOOT
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100154 ulong test1, test2;
155
156 /* setup SDRAM chip selects */
157 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001c; /* 512MB at 0x0 */
158 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x40000000; /* disabled */
159 __asm__ volatile ("sync");
160
161 /* setup config registers */
162 *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
163 *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
164 __asm__ volatile ("sync");
165
166#if SDRAM_DDR
167 /* set tap delay */
168 *(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
169 __asm__ volatile ("sync");
170#endif
171
172 /* find RAM size using SDRAM CS0 only */
173 sdram_start(0);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200174 test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000);
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100175 sdram_start(1);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200176 test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000);
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100177 if (test1 > test2) {
178 sdram_start(0);
179 dramsize = test1;
180 } else {
181 dramsize = test2;
182 }
183
184 /* memory smaller than 1MB is impossible */
185 if (dramsize < (1 << 20)) {
186 dramsize = 0;
187 }
188
189 /* set SDRAM CS0 size according to the amount of RAM found */
190 if (dramsize > 0) {
191 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 +
192 __builtin_ffs(dramsize >> 20) - 1;
193 } else {
194 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
195 }
196
197 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200198#else /* CONFIG_SYS_RAMBOOT */
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100199
200 /* retrieve size of memory connected to SDRAM CS0 */
201 dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
202 if (dramsize >= 0x13) {
203 dramsize = (1 << (dramsize - 0x13)) << 20;
204 } else {
205 dramsize = 0;
206 }
207
208 /* retrieve size of memory connected to SDRAM CS1 */
209 dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF;
210 if (dramsize2 >= 0x13) {
211 dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
212 } else {
213 dramsize2 = 0;
214 }
215
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200216#endif /* CONFIG_SYS_RAMBOOT */
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100217
218/* return dramsize + dramsize2; */
219 return dramsize;
220}
221
222int checkboard (void)
223{
224 puts ("Board: MAN UC101\n");
Heiko Schocher37403002007-04-14 05:26:48 +0200225 /* clear the Display */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200226 *(char *)(CONFIG_SYS_DISP_CWORD) = 0x80;
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100227 return 0;
228}
229
230static void init_ports (void)
231{
Wolfgang Denkf11033e2007-01-15 13:41:04 +0100232 volatile struct mpc5xxx_gpio *pgpio =
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100233 (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
234
235 GP_SIMP_ENABLE_I(GPIO_USB_8); /* HEX Bit 3 */
236 GP_SIMP_ENABLE_I(GPIO_USB_7); /* HEX Bit 2 */
237 GP_SIMP_ENABLE_I(GPIO_USB_6); /* HEX Bit 1 */
238 GP_SIMP_ENABLE_I(GPIO_USB_0); /* HEX Bit 0 */
239 GP_SIMP_ENABLE_I(GPIO_PSC3_0); /* Switch Menue A */
240 GP_SIMP_ENABLE_I(GPIO_PSC3_1); /* Switch Menue B */
241 GP_SIMP_ENABLE_I(GPIO_PSC3_6); /* Switch Cold_Warm */
242 GP_SIMP_ENABLE_I(GPIO_PSC3_7); /* Switch Restart */
243 GP_SINT_ENABLE_O(GPIO_PSC3_8, 0); /* LED H2 */
244 GP_SINT_ENABLE_O(GPIO_USB1_9, 0); /* LED H3 */
245 GP_TIMER_ENABLE_O(4, 0); /* LED H4 */
246 GP_TIMER_ENABLE_O(5, 0); /* LED H5 */
247 GP_TIMER_ENABLE_O(3, 0); /* LED HB */
248 GP_TIMER_ENABLE_O(1, 0); /* RES_COLDSTART */
249}
250
251#ifdef CONFIG_PREBOOT
252
253static uchar kbd_magic_prefix[] = "key_magic";
254static uchar kbd_command_prefix[] = "key_cmd";
255
256struct kbd_data_t {
257 char s1;
258};
259
260struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data)
261{
262 volatile struct mpc5xxx_gpio *pgpio =
263 (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
264
265 kbd_data->s1 = GP_SIMP_GET_I(GPIO_USB_8) << 3 | \
266 GP_SIMP_GET_I(GPIO_USB_7) << 2 | \
267 GP_SIMP_GET_I(GPIO_USB_6) << 1 | \
268 GP_SIMP_GET_I(GPIO_USB_0) << 0;
269 return kbd_data;
270}
271
Wolfgang Denk39218432007-03-07 16:33:44 +0100272static int compare_magic (const struct kbd_data_t *kbd_data, char *str)
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100273{
274 char s1 = str[0];
275
276 if (s1 >= '0' && s1 <= '9')
277 s1 -= '0';
278 else if (s1 >= 'a' && s1 <= 'f')
279 s1 = s1 - 'a' + 10;
280 else if (s1 >= 'A' && s1 <= 'F')
281 s1 = s1 - 'A' + 10;
282 else
283 return -1;
284
285 if (s1 != kbd_data->s1) return -1;
286 return 0;
287}
288
Wolfgang Denk39218432007-03-07 16:33:44 +0100289static char *key_match (const struct kbd_data_t *kbd_data)
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100290{
Wolfgang Denk39218432007-03-07 16:33:44 +0100291 char magic[sizeof (kbd_magic_prefix) + 1];
292 char *suffix;
293 char *kbd_magic_keys;
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100294
295 /*
296 * The following string defines the characters that can be appended
297 * to "key_magic" to form the names of environment variables that
298 * hold "magic" key codes, i. e. such key codes that can cause
299 * pre-boot actions. If the string is empty (""), then only
300 * "key_magic" is checked (old behaviour); the string "125" causes
301 * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
302 */
303 if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
304 kbd_magic_keys = "";
305
306 /* loop over all magic keys;
307 * use '\0' suffix in case of empty string
308 */
309 for (suffix = kbd_magic_keys; *suffix ||
310 suffix == kbd_magic_keys; ++suffix) {
311 sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
312
313 if (compare_magic(kbd_data, getenv(magic)) == 0) {
Wolfgang Denk39218432007-03-07 16:33:44 +0100314 char cmd_name[sizeof (kbd_command_prefix) + 1];
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100315 char *cmd;
316
317 sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
318 cmd = getenv (cmd_name);
319
320 return (cmd);
321 }
322 }
323
324 return (NULL);
325}
326
327#endif /* CONFIG_PREBOOT */
328
329int misc_init_r (void)
330{
331 /* Init the I/O ports */
332 init_ports ();
333
334#ifdef CONFIG_PREBOOT
335 struct kbd_data_t kbd_data;
336 /* Decode keys */
Wolfgang Denk39218432007-03-07 16:33:44 +0100337 char *str = strdup (key_match (get_keys (&kbd_data)));
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100338 /* Set or delete definition */
339 setenv ("preboot", str);
340 free (str);
341#endif /* CONFIG_PREBOOT */
342 return 0;
343}
344
345int board_early_init_r (void)
346{
347 *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
348 *(vu_long *)MPC5XXX_BOOTCS_START =
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200349 *(vu_long *)MPC5XXX_CS0_START = START_REG(CONFIG_SYS_FLASH_BASE);
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100350 *(vu_long *)MPC5XXX_BOOTCS_STOP =
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200351 *(vu_long *)MPC5XXX_CS0_STOP = STOP_REG(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE);
Heiko Schocher6dedf3d2006-12-21 16:14:48 +0100352 /* Interbus enable it here ?? */
353 *(vu_long *)MPC5XXX_GPT6_ENABLE = GPT_OUT_1;
354 return 0;
355}
356#ifdef CONFIG_PCI
357static struct pci_controller hose;
358
359extern void pci_mpc5xxx_init(struct pci_controller *);
360
361void pci_init_board(void)
362{
363 pci_mpc5xxx_init(&hose);
364}
365#endif
366
367#if defined(CONFIG_HW_WATCHDOG)
368void hw_watchdog_reset(void)
369{
370 /* Trigger HW Watchdog with TIMER_0 */
371 *(vu_long *)MPC5XXX_GPT0_ENABLE = GPT_OUT_1;
372 *(vu_long *)MPC5XXX_GPT0_ENABLE = GPT_OUT_0;
373}
374#endif
Heiko Schocher7f625fc2009-09-23 07:56:04 +0200375
376#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
377void ft_board_setup(void *blob, bd_t *bd)
378{
379 ft_cpu_setup(blob, bd);
380}
381#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */