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1 | /* | |
2 | * (C) Copyright 2003-2004 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * (C) Copyright 2004 | |
6 | * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. | |
7 | * | |
8 | * (C) Copyright 2006 | |
9 | * MicroSys GmbH | |
10 | * | |
11 | * (C) Copyright 2009 | |
12 | * Wolfgang Grandegger, DENX Software Engineering, wg@denx.de. | |
13 | * | |
14 | * SPDX-License-Identifier: GPL-2.0+ | |
15 | */ | |
16 | ||
17 | #include <common.h> | |
18 | #include <mpc5xxx.h> | |
19 | #include <pci.h> | |
20 | #include <netdev.h> | |
21 | #include <miiphy.h> | |
22 | #include <libfdt.h> | |
23 | #include <mb862xx.h> | |
24 | #include <video_fb.h> | |
25 | #include <asm/processor.h> | |
26 | #include <asm/io.h> | |
27 | ||
28 | #ifdef CONFIG_OF_LIBFDT | |
29 | #include <fdt_support.h> | |
30 | #endif /* CONFIG_OF_LIBFDT */ | |
31 | ||
32 | /* mt46v16m16-75 */ | |
33 | #ifdef CONFIG_MPC5200_DDR | |
34 | /* Settings for XLB = 132 MHz */ | |
35 | #define SDRAM_MODE 0x018D0000 | |
36 | #define SDRAM_EMODE 0x40090000 | |
37 | #define SDRAM_CONTROL 0x714f0f00 | |
38 | #define SDRAM_CONFIG1 0x73722930 | |
39 | #define SDRAM_CONFIG2 0x47770000 | |
40 | #define SDRAM_TAPDELAY 0x10000000 | |
41 | #else | |
42 | #error SDRAM is not supported on this board | |
43 | #endif | |
44 | ||
45 | DECLARE_GLOBAL_DATA_PTR; | |
46 | ||
47 | static void sdram_start (int hi_addr) | |
48 | { | |
49 | struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM; | |
50 | long hi_addr_bit = hi_addr ? 0x01000000 : 0; | |
51 | ||
52 | /* unlock mode register */ | |
53 | out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000000 | hi_addr_bit); | |
54 | ||
55 | /* precharge all banks */ | |
56 | out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit); | |
57 | ||
58 | /* set mode register: extended mode */ | |
59 | out_be32 (&sdram->mode, SDRAM_EMODE); | |
60 | ||
61 | /* set mode register: reset DLL */ | |
62 | out_be32 (&sdram->mode, SDRAM_MODE | 0x04000000); | |
63 | ||
64 | /* precharge all banks */ | |
65 | out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit); | |
66 | ||
67 | /* auto refresh */ | |
68 | out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000004 | hi_addr_bit); | |
69 | ||
70 | /* set mode register */ | |
71 | out_be32 (&sdram->mode, SDRAM_MODE); | |
72 | ||
73 | /* normal operation */ | |
74 | out_be32 (&sdram->ctrl, SDRAM_CONTROL | hi_addr_bit); | |
75 | } | |
76 | ||
77 | /* | |
78 | * ATTENTION: Although partially referenced initdram does NOT make real | |
79 | * use of CONFIG_SYS_SDRAM_BASE. The code does not work if | |
80 | * CONFIG_SYS_SDRAM_BASE is something else than 0x00000000. | |
81 | */ | |
82 | ||
83 | phys_size_t initdram (int board_type) | |
84 | { | |
85 | struct mpc5xxx_mmap_ctl *mmap_ctl = | |
86 | (struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR; | |
87 | struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM; | |
88 | struct mpc5xxx_cdm *cdm = (struct mpc5xxx_cdm *)MPC5XXX_CDM; | |
89 | ulong dramsize = 0; | |
90 | ulong dramsize2 = 0; | |
91 | ulong test1, test2; | |
92 | ||
93 | /* setup SDRAM chip selects */ | |
94 | out_be32 (&mmap_ctl->sdram0, 0x0000001e); /* 2G at 0x0 */ | |
95 | out_be32 (&mmap_ctl->sdram1, 0x00000000); /* disabled */ | |
96 | ||
97 | /* setup config registers */ | |
98 | out_be32 (&sdram->config1, SDRAM_CONFIG1); | |
99 | out_be32 (&sdram->config2, SDRAM_CONFIG2); | |
100 | ||
101 | /* set tap delay */ | |
102 | out_be32 (&cdm->porcfg, SDRAM_TAPDELAY); | |
103 | ||
104 | /* find RAM size using SDRAM CS0 only */ | |
105 | sdram_start (0); | |
106 | test1 = get_ram_size ((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); | |
107 | sdram_start (1); | |
108 | test2 = get_ram_size ((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); | |
109 | if (test1 > test2) { | |
110 | sdram_start (0); | |
111 | dramsize = test1; | |
112 | } else { | |
113 | dramsize = test2; | |
114 | } | |
115 | ||
116 | /* memory smaller than 1MB is impossible */ | |
117 | if (dramsize < (1 << 20)) | |
118 | dramsize = 0; | |
119 | ||
120 | /* set SDRAM CS0 size according to the amount of RAM found */ | |
121 | if (dramsize > 0) | |
122 | out_be32 (&mmap_ctl->sdram0, | |
123 | 0x13 + __builtin_ffs (dramsize >> 20) - 1); | |
124 | else | |
125 | out_be32 (&mmap_ctl->sdram1, 0); /* disabled */ | |
126 | ||
127 | /* | |
128 | * On MPC5200B we need to set the special configuration delay in the | |
129 | * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM | |
130 | * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: | |
131 | * | |
132 | * "The SDelay should be written to a value of 0x00000004. It is | |
133 | * required to account for changes caused by normal wafer processing | |
134 | * parameters." | |
135 | */ | |
136 | out_be32 (&sdram->sdelay, 0x04); | |
137 | ||
138 | return dramsize + dramsize2; | |
139 | } | |
140 | ||
141 | int checkboard (void) | |
142 | { | |
143 | puts ("Board: IPEK01 \n"); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | void flash_preinit (void) | |
148 | { | |
149 | struct mpc5xxx_lpb *lpb = (struct mpc5xxx_lpb *)MPC5XXX_LPB; | |
150 | ||
151 | /* | |
152 | * Now, when we are in RAM, enable flash write | |
153 | * access for detection process. | |
154 | * Note that CS_BOOT cannot be cleared when | |
155 | * executing in flash. | |
156 | */ | |
157 | clrbits_be32 (&lpb->cs0_cfg, 0x1); /* clear RO */ | |
158 | } | |
159 | ||
160 | void flash_afterinit (ulong start, ulong size) | |
161 | { | |
162 | struct mpc5xxx_mmap_ctl *mmap_ctl = | |
163 | (struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR; | |
164 | ||
165 | #if defined(CONFIG_BOOT_ROM) | |
166 | /* adjust mapping */ | |
167 | out_be32 (&mmap_ctl->cs1_start, START_REG (start)); | |
168 | out_be32 (&mmap_ctl->cs1_stop, STOP_REG (start, size)); | |
169 | #else | |
170 | /* adjust mapping */ | |
171 | out_be32 (&mmap_ctl->boot_start, START_REG (start)); | |
172 | out_be32 (&mmap_ctl->cs0_start, START_REG (start)); | |
173 | out_be32 (&mmap_ctl->boot_stop, STOP_REG (start, size)); | |
174 | out_be32 (&mmap_ctl->cs0_stop, STOP_REG (start, size)); | |
175 | #endif | |
176 | } | |
177 | ||
178 | extern flash_info_t flash_info[]; /* info for FLASH chips */ | |
179 | ||
180 | int misc_init_r (void) | |
181 | { | |
182 | /* adjust flash start */ | |
183 | gd->bd->bi_flashstart = flash_info[0].start[0]; | |
184 | return (0); | |
185 | } | |
186 | ||
187 | #ifdef CONFIG_PCI | |
188 | static struct pci_controller hose; | |
189 | ||
190 | extern void pci_mpc5xxx_init (struct pci_controller *); | |
191 | ||
192 | void pci_init_board (void) | |
193 | { | |
194 | pci_mpc5xxx_init (&hose); | |
195 | } | |
196 | #endif | |
197 | ||
198 | #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) | |
199 | int ft_board_setup(void *blob, bd_t *bd) | |
200 | { | |
201 | ft_cpu_setup (blob, bd); | |
202 | fdt_fixup_memory (blob, (u64) bd->bi_memstart, (u64) bd->bi_memsize); | |
203 | ||
204 | return 0; | |
205 | } | |
206 | #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ | |
207 | ||
208 | int board_eth_init(bd_t *bis) | |
209 | { | |
210 | cpu_eth_init(bis); /* Built in FEC comes first */ | |
211 | return pci_eth_init(bis); | |
212 | } | |
213 | ||
214 | #ifdef CONFIG_VIDEO | |
215 | extern GraphicDevice mb862xx; | |
216 | ||
217 | static const gdc_regs init_regs[] = { | |
218 | {0x0100, 0x00000900}, | |
219 | {0x0020, 0x80190257}, | |
220 | {0x0024, 0x00000000}, | |
221 | {0x0028, 0x00000000}, | |
222 | {0x002c, 0x00000000}, | |
223 | {0x0110, 0x00000000}, | |
224 | {0x0114, 0x00000000}, | |
225 | {0x0118, 0x02570320}, | |
226 | {0x0004, 0x041f0000}, | |
227 | {0x0008, 0x031f031f}, | |
228 | {0x000c, 0x067f0347}, | |
229 | {0x0010, 0x02780000}, | |
230 | {0x0014, 0x0257025c}, | |
231 | {0x0018, 0x00000000}, | |
232 | {0x001c, 0x02570320}, | |
233 | {0x0100, 0x80010900}, | |
234 | {0x0, 0x0} | |
235 | }; | |
236 | ||
237 | const gdc_regs *board_get_regs (void) | |
238 | { | |
239 | return init_regs; | |
240 | } | |
241 | ||
242 | /* Returns Lime base address */ | |
243 | unsigned int board_video_init (void) | |
244 | { | |
245 | if (mb862xx_probe (CONFIG_SYS_LIME_BASE) != MB862XX_TYPE_LIME) | |
246 | return 0; | |
247 | ||
248 | mb862xx.winSizeX = 800; | |
249 | mb862xx.winSizeY = 600; | |
250 | mb862xx.gdfIndex = GDF_15BIT_555RGB; | |
251 | mb862xx.gdfBytesPP = 2; | |
252 | ||
253 | return CONFIG_SYS_LIME_BASE; | |
254 | } | |
255 | ||
256 | #if defined(CONFIG_CONSOLE_EXTRA_INFO) | |
257 | /* | |
258 | * Return text to be printed besides the logo. | |
259 | */ | |
260 | void video_get_info_str (int line_number, char *info) | |
261 | { | |
262 | if (line_number == 1) | |
263 | strcpy (info, " Board: IPEK01"); | |
264 | else | |
265 | info[0] = '\0'; | |
266 | } | |
267 | #endif | |
268 | #endif /* CONFIG_VIDEO */ |