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8993e54b RJ |
1 | /* |
2 | * (C) Copyright 2007 DENX Software Engineering | |
3 | * | |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <common.h> | |
25 | #include <mpc512x.h> | |
b60b8573 | 26 | #include "iopin.h" |
8993e54b RJ |
27 | #include <asm/bitops.h> |
28 | #include <command.h> | |
e343ab83 | 29 | #include <fdt_support.h> |
f31c49db MM |
30 | #ifdef CONFIG_MISC_INIT_R |
31 | #include <i2c.h> | |
32 | #endif | |
9b55a253 WD |
33 | #include "iopin.h" /* for iopin_initialize() prototype */ |
34 | ||
8993e54b RJ |
35 | /* Clocks in use */ |
36 | #define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \ | |
37 | CLOCK_SCCR1_LPC_EN | \ | |
38 | CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) | \ | |
39 | CLOCK_SCCR1_PSCFIFO_EN | \ | |
40 | CLOCK_SCCR1_DDR_EN | \ | |
8d103071 | 41 | CLOCK_SCCR1_FEC_EN | \ |
5f91db7f | 42 | CLOCK_SCCR1_PCI_EN | \ |
8d103071 | 43 | CLOCK_SCCR1_TPR_EN) |
8993e54b RJ |
44 | |
45 | #define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN | \ | |
46 | CLOCK_SCCR2_SPDIF_EN | \ | |
0e1bad47 | 47 | CLOCK_SCCR2_DIU_EN | \ |
8993e54b RJ |
48 | CLOCK_SCCR2_I2C_EN) |
49 | ||
50 | #define CSAW_START(start) ((start) & 0xFFFF0000) | |
51 | #define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16) | |
52 | ||
b60b8573 JR |
53 | extern void ads5121_diu_init(void); |
54 | ||
8993e54b RJ |
55 | long int fixed_sdram(void); |
56 | ||
57 | int board_early_init_f (void) | |
58 | { | |
59 | volatile immap_t *im = (immap_t *) CFG_IMMR; | |
9b55a253 | 60 | u32 lpcaw; |
8993e54b RJ |
61 | |
62 | /* | |
63 | * Initialize Local Window for the CPLD registers access (CS2 selects | |
64 | * the CPLD chip) | |
65 | */ | |
66 | im->sysconf.lpcs2aw = CSAW_START(CFG_CPLD_BASE) | | |
67 | CSAW_STOP(CFG_CPLD_BASE, CFG_CPLD_SIZE); | |
68 | im->lpc.cs_cfg[2] = CFG_CS2_CFG; | |
69 | ||
70 | /* | |
71 | * According to MPC5121e RM, configuring local access windows should | |
72 | * be followed by a dummy read of the config register that was | |
73 | * modified last and an isync | |
74 | */ | |
75 | lpcaw = im->sysconf.lpcs2aw; | |
76 | __asm__ __volatile__ ("isync"); | |
77 | ||
78 | /* | |
79 | * Disable Boot NOR FLASH write protect - CPLD Reg 8 NOR FLASH Control | |
80 | * | |
81 | * Without this the flash identification routine fails, as it needs to issue | |
82 | * write commands in order to establish the device ID. | |
83 | */ | |
8993e54b | 84 | |
f31c49db MM |
85 | #ifdef CONFIG_ADS5121_REV2 |
86 | *((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1; | |
87 | #else | |
88 | if (*((u8 *)(CFG_CPLD_BASE + 0x08)) & 0x04) { | |
89 | *((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1; | |
90 | } else { | |
91 | /* running from Backup flash */ | |
92 | *((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0x32; | |
93 | } | |
94 | #endif | |
95 | /* | |
96 | * Configure Flash Speed | |
97 | */ | |
98 | *((volatile u32 *)(CFG_IMMR + LPC_OFFSET + CS0_CONFIG)) = CFG_CS0_CFG; | |
8993e54b RJ |
99 | /* |
100 | * Enable clocks | |
101 | */ | |
102 | im->clk.sccr[0] = SCCR1_CLOCKS_EN; | |
103 | im->clk.sccr[1] = SCCR2_CLOCKS_EN; | |
104 | ||
105 | return 0; | |
106 | } | |
107 | ||
9973e3c6 | 108 | phys_size_t initdram (int board_type) |
8993e54b RJ |
109 | { |
110 | u32 msize = 0; | |
111 | ||
8993e54b | 112 | msize = fixed_sdram (); |
8993e54b RJ |
113 | |
114 | return msize; | |
115 | } | |
116 | ||
117 | /* | |
118 | * fixed sdram init -- the board doesn't use memory modules that have serial presence | |
119 | * detect or similar mechanism for discovery of the DRAM settings | |
120 | */ | |
121 | long int fixed_sdram (void) | |
122 | { | |
123 | volatile immap_t *im = (immap_t *) CFG_IMMR; | |
124 | u32 msize = CFG_DDR_SIZE * 1024 * 1024; | |
125 | u32 msize_log2 = __ilog2 (msize); | |
126 | u32 i; | |
127 | ||
128 | /* Initialize IO Control */ | |
129 | im->io_ctrl.regs[MEM_IDX] = IOCTRL_MUX_DDR; | |
130 | ||
131 | /* Initialize DDR Local Window */ | |
132 | im->sysconf.ddrlaw.bar = CFG_DDR_BASE & 0xFFFFF000; | |
133 | im->sysconf.ddrlaw.ar = msize_log2 - 1; | |
134 | ||
135 | /* | |
136 | * According to MPC5121e RM, configuring local access windows should | |
137 | * be followed by a dummy read of the config register that was | |
138 | * modified last and an isync | |
b1b54e35 | 139 | */ |
8993e54b RJ |
140 | i = im->sysconf.ddrlaw.ar; |
141 | __asm__ __volatile__ ("isync"); | |
142 | ||
143 | /* Enable DDR */ | |
144 | im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG_EN; | |
145 | ||
146 | /* Initialize DDR Priority Manager */ | |
147 | im->mddrc.prioman_config1 = CFG_MDDRCGRP_PM_CFG1; | |
148 | im->mddrc.prioman_config2 = CFG_MDDRCGRP_PM_CFG2; | |
149 | im->mddrc.hiprio_config = CFG_MDDRCGRP_HIPRIO_CFG; | |
150 | im->mddrc.lut_table0_main_upper = CFG_MDDRCGRP_LUT0_MU; | |
8993e54b | 151 | im->mddrc.lut_table0_main_lower = CFG_MDDRCGRP_LUT0_ML; |
37e3c62f | 152 | im->mddrc.lut_table1_main_upper = CFG_MDDRCGRP_LUT1_MU; |
8993e54b | 153 | im->mddrc.lut_table1_main_lower = CFG_MDDRCGRP_LUT1_ML; |
37e3c62f | 154 | im->mddrc.lut_table2_main_upper = CFG_MDDRCGRP_LUT2_MU; |
8993e54b | 155 | im->mddrc.lut_table2_main_lower = CFG_MDDRCGRP_LUT2_ML; |
37e3c62f | 156 | im->mddrc.lut_table3_main_upper = CFG_MDDRCGRP_LUT3_MU; |
8993e54b | 157 | im->mddrc.lut_table3_main_lower = CFG_MDDRCGRP_LUT3_ML; |
37e3c62f | 158 | im->mddrc.lut_table4_main_upper = CFG_MDDRCGRP_LUT4_MU; |
8993e54b RJ |
159 | im->mddrc.lut_table4_main_lower = CFG_MDDRCGRP_LUT4_ML; |
160 | im->mddrc.lut_table0_alternate_upper = CFG_MDDRCGRP_LUT0_AU; | |
8d103071 | 161 | im->mddrc.lut_table0_alternate_lower = CFG_MDDRCGRP_LUT0_AL; |
37e3c62f | 162 | im->mddrc.lut_table1_alternate_upper = CFG_MDDRCGRP_LUT1_AU; |
8993e54b | 163 | im->mddrc.lut_table1_alternate_lower = CFG_MDDRCGRP_LUT1_AL; |
37e3c62f | 164 | im->mddrc.lut_table2_alternate_upper = CFG_MDDRCGRP_LUT2_AU; |
8993e54b | 165 | im->mddrc.lut_table2_alternate_lower = CFG_MDDRCGRP_LUT2_AL; |
37e3c62f | 166 | im->mddrc.lut_table3_alternate_upper = CFG_MDDRCGRP_LUT3_AU; |
8993e54b | 167 | im->mddrc.lut_table3_alternate_lower = CFG_MDDRCGRP_LUT3_AL; |
37e3c62f | 168 | im->mddrc.lut_table4_alternate_upper = CFG_MDDRCGRP_LUT4_AU; |
8993e54b RJ |
169 | im->mddrc.lut_table4_alternate_lower = CFG_MDDRCGRP_LUT4_AL; |
170 | ||
171 | /* Initialize MDDRC */ | |
172 | im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG; | |
173 | im->mddrc.ddr_time_config0 = CFG_MDDRC_TIME_CFG0; | |
174 | im->mddrc.ddr_time_config1 = CFG_MDDRC_TIME_CFG1; | |
175 | im->mddrc.ddr_time_config2 = CFG_MDDRC_TIME_CFG2; | |
176 | ||
177 | /* Initialize DDR */ | |
178 | for (i = 0; i < 10; i++) | |
179 | im->mddrc.ddr_command = CFG_MICRON_NOP; | |
180 | ||
37e3c62f GB |
181 | im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
182 | im->mddrc.ddr_command = CFG_MICRON_NOP; | |
183 | im->mddrc.ddr_command = CFG_MICRON_RFSH; | |
184 | im->mddrc.ddr_command = CFG_MICRON_NOP; | |
185 | im->mddrc.ddr_command = CFG_MICRON_RFSH; | |
186 | im->mddrc.ddr_command = CFG_MICRON_NOP; | |
187 | im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP; | |
188 | im->mddrc.ddr_command = CFG_MICRON_NOP; | |
189 | im->mddrc.ddr_command = CFG_MICRON_EM2; | |
190 | im->mddrc.ddr_command = CFG_MICRON_NOP; | |
8993e54b RJ |
191 | im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
192 | im->mddrc.ddr_command = CFG_MICRON_EM2; | |
193 | im->mddrc.ddr_command = CFG_MICRON_EM3; | |
194 | im->mddrc.ddr_command = CFG_MICRON_EN_DLL; | |
37e3c62f | 195 | im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP; |
8993e54b RJ |
196 | im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
197 | im->mddrc.ddr_command = CFG_MICRON_RFSH; | |
198 | im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP; | |
199 | im->mddrc.ddr_command = CFG_MICRON_OCD_DEFAULT; | |
37e3c62f GB |
200 | im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
201 | im->mddrc.ddr_command = CFG_MICRON_NOP; | |
8993e54b RJ |
202 | |
203 | /* Start MDDRC */ | |
204 | im->mddrc.ddr_time_config0 = CFG_MDDRC_TIME_CFG0_RUN; | |
205 | im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG_RUN; | |
206 | ||
207 | return msize; | |
208 | } | |
209 | ||
0e1bad47 YS |
210 | int misc_init_r(void) |
211 | { | |
212 | u8 tmp_val; | |
9b55a253 | 213 | extern int ads5121_diu_init(void); |
0e1bad47 YS |
214 | |
215 | /* Using this for DIU init before the driver in linux takes over | |
216 | * Enable the TFP410 Encoder (I2C address 0x38) | |
217 | */ | |
218 | ||
219 | i2c_set_bus_num(2); | |
220 | tmp_val = 0xBF; | |
221 | i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val)); | |
222 | /* Verify if enabled */ | |
223 | tmp_val = 0; | |
224 | i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val)); | |
225 | debug("DVI Encoder Read: 0x%02lx\n", tmp_val); | |
226 | ||
227 | tmp_val = 0x10; | |
228 | i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val)); | |
229 | /* Verify if enabled */ | |
230 | tmp_val = 0; | |
231 | i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val)); | |
232 | debug("DVI Encoder Read: 0x%02lx\n", tmp_val); | |
233 | ||
234 | #ifdef CONFIG_FSL_DIU_FB | |
235 | #if !(defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)) | |
236 | ads5121_diu_init(); | |
237 | #endif | |
238 | #endif | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
8993e54b RJ |
243 | int checkboard (void) |
244 | { | |
245 | ushort brd_rev = *(vu_short *) (CFG_CPLD_BASE + 0x00); | |
246 | uchar cpld_rev = *(vu_char *) (CFG_CPLD_BASE + 0x02); | |
247 | ||
248 | printf ("Board: ADS5121 rev. 0x%04x (CPLD rev. 0x%02x)\n", | |
b1b54e35 | 249 | brd_rev, cpld_rev); |
16bee7b0 MM |
250 | /* initialize function mux & slew rate IO inter alia on IO Pins */ |
251 | iopin_initialize(); | |
51b67d06 | 252 | |
8993e54b RJ |
253 | return 0; |
254 | } | |
281ff9a4 GB |
255 | |
256 | #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) | |
257 | void ft_board_setup(void *blob, bd_t *bd) | |
258 | { | |
259 | ft_cpu_setup(blob, bd); | |
260 | fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); | |
261 | } | |
262 | #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ |