Rename ads5121 board into mpc5121ads
[oweals/u-boot.git] / board / freescale / mpc5121ads / mpc5121ads.c
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>
26 #include <asm/bitops.h>
27 #include <command.h>
28 #include <asm/processor.h>
29 #include <fdt_support.h>
30 #ifdef CONFIG_MISC_INIT_R
31 #include <i2c.h>
32 #endif
33
34 DECLARE_GLOBAL_DATA_PTR;
35
36 extern int mpc5121_diu_init(void);
37
38 /* Clocks in use */
39 #define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN |                           \
40                          CLOCK_SCCR1_LPC_EN |                           \
41                          CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) |       \
42                          CLOCK_SCCR1_PSCFIFO_EN |                       \
43                          CLOCK_SCCR1_DDR_EN |                           \
44                          CLOCK_SCCR1_FEC_EN |                           \
45                          CLOCK_SCCR1_PATA_EN |                          \
46                          CLOCK_SCCR1_PCI_EN |                           \
47                          CLOCK_SCCR1_TPR_EN)
48
49 #define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN |           \
50                          CLOCK_SCCR2_SPDIF_EN |         \
51                          CLOCK_SCCR2_DIU_EN |           \
52                          CLOCK_SCCR2_I2C_EN)
53
54 #define CSAW_START(start)       ((start) & 0xFFFF0000)
55 #define CSAW_STOP(start, size)  (((start) + (size) - 1) >> 16)
56
57 long int fixed_sdram(void);
58
59 int board_early_init_f (void)
60 {
61         volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
62         u32 lpcaw;
63
64         /*
65          * Initialize Local Window for the CPLD registers access (CS2 selects
66          * the CPLD chip)
67          */
68         im->sysconf.lpcs2aw = CSAW_START(CONFIG_SYS_CPLD_BASE) |
69                               CSAW_STOP(CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_SIZE);
70         im->lpc.cs_cfg[2] = CONFIG_SYS_CS2_CFG;
71
72         /*
73          * According to MPC5121e RM, configuring local access windows should
74          * be followed by a dummy read of the config register that was
75          * modified last and an isync
76          */
77         lpcaw = im->sysconf.lpcs2aw;
78         __asm__ __volatile__ ("isync");
79
80         /*
81          * Disable Boot NOR FLASH write protect - CPLD Reg 8 NOR FLASH Control
82          *
83          * Without this the flash identification routine fails, as it needs to issue
84          * write commands in order to establish the device ID.
85          */
86
87 #ifdef CONFIG_ADS5121_REV2
88         *((volatile u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) = 0xC1;
89 #else
90         if (*((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) & 0x04) {
91                 *((volatile u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) = 0xC1;
92         } else {
93                 /* running from Backup flash */
94                 *((volatile u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) = 0x32;
95         }
96 #endif
97         /*
98          * Configure Flash Speed
99          */
100         *((volatile u32 *)(CONFIG_SYS_IMMR + LPC_OFFSET + CS0_CONFIG)) = CONFIG_SYS_CS0_CFG;
101         if (SVR_MJREV (im->sysconf.spridr) >= 2) {
102                 *((volatile u32 *)(CONFIG_SYS_IMMR + LPC_OFFSET + CS_ALE_TIMING_CONFIG)) = CONFIG_SYS_CS_ALETIMING;
103         }
104         /*
105          * Enable clocks
106          */
107         im->clk.sccr[0] = SCCR1_CLOCKS_EN;
108         im->clk.sccr[1] = SCCR2_CLOCKS_EN;
109 #if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE)
110         im->clk.sccr[1] |= CLOCK_SCCR2_IIM_EN;
111 #endif
112
113         return 0;
114 }
115
116 phys_size_t initdram (int board_type)
117 {
118         u32 msize = 0;
119
120         msize = fixed_sdram ();
121
122         return msize;
123 }
124
125 /*
126  * fixed sdram init -- the board doesn't use memory modules that have serial presence
127  * detect or similar mechanism for discovery of the DRAM settings
128  */
129 long int fixed_sdram (void)
130 {
131         volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
132         u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
133         u32 msize_log2 = __ilog2 (msize);
134         u32 i;
135
136         /* Initialize IO Control */
137         im->io_ctrl.regs[IOCTL_MEM/4] = IOCTRL_MUX_DDR;
138
139         /* Initialize DDR Local Window */
140         im->sysconf.ddrlaw.bar = CONFIG_SYS_DDR_BASE & 0xFFFFF000;
141         im->sysconf.ddrlaw.ar = msize_log2 - 1;
142
143         /*
144          * According to MPC5121e RM, configuring local access windows should
145          * be followed by a dummy read of the config register that was
146          * modified last and an isync
147          */
148         i = im->sysconf.ddrlaw.ar;
149         __asm__ __volatile__ ("isync");
150
151         /* Enable DDR */
152         im->mddrc.ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG_EN;
153
154         /* Initialize DDR Priority Manager */
155         im->mddrc.prioman_config1 = CONFIG_SYS_MDDRCGRP_PM_CFG1;
156         im->mddrc.prioman_config2 = CONFIG_SYS_MDDRCGRP_PM_CFG2;
157         im->mddrc.hiprio_config = CONFIG_SYS_MDDRCGRP_HIPRIO_CFG;
158         im->mddrc.lut_table0_main_upper = CONFIG_SYS_MDDRCGRP_LUT0_MU;
159         im->mddrc.lut_table0_main_lower = CONFIG_SYS_MDDRCGRP_LUT0_ML;
160         im->mddrc.lut_table1_main_upper = CONFIG_SYS_MDDRCGRP_LUT1_MU;
161         im->mddrc.lut_table1_main_lower = CONFIG_SYS_MDDRCGRP_LUT1_ML;
162         im->mddrc.lut_table2_main_upper = CONFIG_SYS_MDDRCGRP_LUT2_MU;
163         im->mddrc.lut_table2_main_lower = CONFIG_SYS_MDDRCGRP_LUT2_ML;
164         im->mddrc.lut_table3_main_upper = CONFIG_SYS_MDDRCGRP_LUT3_MU;
165         im->mddrc.lut_table3_main_lower = CONFIG_SYS_MDDRCGRP_LUT3_ML;
166         im->mddrc.lut_table4_main_upper = CONFIG_SYS_MDDRCGRP_LUT4_MU;
167         im->mddrc.lut_table4_main_lower = CONFIG_SYS_MDDRCGRP_LUT4_ML;
168         im->mddrc.lut_table0_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT0_AU;
169         im->mddrc.lut_table0_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT0_AL;
170         im->mddrc.lut_table1_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT1_AU;
171         im->mddrc.lut_table1_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT1_AL;
172         im->mddrc.lut_table2_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT2_AU;
173         im->mddrc.lut_table2_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT2_AL;
174         im->mddrc.lut_table3_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT3_AU;
175         im->mddrc.lut_table3_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT3_AL;
176         im->mddrc.lut_table4_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT4_AU;
177         im->mddrc.lut_table4_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT4_AL;
178
179         /* Initialize MDDRC */
180         im->mddrc.ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG;
181         im->mddrc.ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0;
182         im->mddrc.ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1;
183         im->mddrc.ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2;
184
185         /* Initialize DDR */
186         for (i = 0; i < 10; i++)
187                 im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
188
189         im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
190         im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
191         im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH;
192         im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
193         im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH;
194         im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
195         im->mddrc.ddr_command = CONFIG_SYS_MICRON_INIT_DEV_OP;
196         im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
197         im->mddrc.ddr_command = CONFIG_SYS_MICRON_EM2;
198         im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
199         im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
200         im->mddrc.ddr_command = CONFIG_SYS_MICRON_EM2;
201         im->mddrc.ddr_command = CONFIG_SYS_MICRON_EM3;
202         im->mddrc.ddr_command = CONFIG_SYS_MICRON_EN_DLL;
203         im->mddrc.ddr_command = CONFIG_SYS_MICRON_INIT_DEV_OP;
204         im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
205         im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH;
206         im->mddrc.ddr_command = CONFIG_SYS_MICRON_INIT_DEV_OP;
207         im->mddrc.ddr_command = CONFIG_SYS_MICRON_OCD_DEFAULT;
208         im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
209         im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
210
211         /* Start MDDRC */
212         im->mddrc.ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0_RUN;
213         im->mddrc.ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG_RUN;
214
215         return msize;
216 }
217
218 int misc_init_r(void)
219 {
220         u8 tmp_val;
221
222         /* Using this for DIU init before the driver in linux takes over
223          *  Enable the TFP410 Encoder (I2C address 0x38)
224          */
225
226         i2c_set_bus_num(2);
227         tmp_val = 0xBF;
228         i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
229         /* Verify if enabled */
230         tmp_val = 0;
231         i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
232         debug("DVI Encoder Read: 0x%02lx\n", tmp_val);
233
234         tmp_val = 0x10;
235         i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
236         /* Verify if enabled */
237         tmp_val = 0;
238         i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
239         debug("DVI Encoder Read: 0x%02lx\n", tmp_val);
240
241 #ifdef CONFIG_FSL_DIU_FB
242 # if    !(defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE))
243         mpc5121_diu_init();
244 # endif
245 #endif
246         return 0;
247 }
248
249 static  iopin_t ioregs_init[] = {
250         /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
251         {
252                 IOCTL_SPDIF_TXCLK, 3, 0,
253                 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
254                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
255         },
256         /* Set highest Slew on 9 PATA pins */
257         {
258                 IOCTL_PATA_CE1, 9, 1,
259                 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
260                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
261         },
262         /* FUNC1=FEC_COL Sets Next 15 to FEC pads */
263         {
264                 IOCTL_PSC0_0, 15, 0,
265                 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
266                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
267         },
268         /* FUNC1=SPDIF_TXCLK */
269         {
270                 IOCTL_LPC_CS1, 1, 0,
271                 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
272                 IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
273         },
274         /* FUNC2=SPDIF_TX and sets Next pin to SPDIF_RX */
275         {
276                 IOCTL_I2C1_SCL, 2, 0,
277                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
278                 IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
279         },
280         /* FUNC2=DIU CLK */
281         {
282                 IOCTL_PSC6_0, 1, 0,
283                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
284                 IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
285         },
286         /* FUNC2=DIU_HSYNC */
287         {
288                 IOCTL_PSC6_1, 1, 0,
289                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
290                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
291         },
292         /* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */
293         {
294                 IOCTL_PSC6_4, 26, 0,
295                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
296                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
297         }
298 };
299
300 static  iopin_t rev2_silicon_pci_ioregs_init[] = {
301         /* FUNC0=PCI Sets next 54 to PCI pads */
302         {
303                 IOCTL_PCI_AD31, 54, 0,
304                 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
305         }
306 };
307
308 int checkboard (void)
309 {
310         ushort brd_rev = *(vu_short *) (CONFIG_SYS_CPLD_BASE + 0x00);
311         uchar cpld_rev = *(vu_char *) (CONFIG_SYS_CPLD_BASE + 0x02);
312         volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
313
314         printf ("Board: ADS5121 rev. 0x%04x (CPLD rev. 0x%02x)\n",
315                 brd_rev, cpld_rev);
316
317         /* initialize function mux & slew rate IO inter alia on IO Pins  */
318         iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));
319
320         if (SVR_MJREV (im->sysconf.spridr) >= 2)
321                 iopin_initialize(rev2_silicon_pci_ioregs_init, 1);
322
323         return 0;
324 }
325
326 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
327 void ft_board_setup(void *blob, bd_t *bd)
328 {
329         ft_cpu_setup(blob, bd);
330         fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
331 }
332 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */