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rename CFG_ macros to CONFIG_SYS
[people/ms/u-boot.git] / board / freescale / mpc8349emds / mpc8349emds.c
CommitLineData
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1/*
2 * (C) Copyright 2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 *
23 */
24
25#include <common.h>
26#include <ioports.h>
27#include <mpc83xx.h>
28#include <asm/mpc8349_pci.h>
29#include <i2c.h>
80ddd226 30#include <spi.h>
991425fe 31#include <miiphy.h>
991425fe 32#include <spd_sdram.h>
a30a549a 33
b3458d2c 34#if defined(CONFIG_OF_LIBFDT)
3fde9e8b 35#include <libfdt.h>
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36#endif
37
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38int fixed_sdram(void);
39void sdram_init(void);
40
41#if defined(CONFIG_DDR_ECC) && defined(CONFIG_MPC83XX)
42void ddr_enable_ecc(unsigned int dram_size);
43#endif
44
45int board_early_init_f (void)
46{
6d0f6bcf 47 volatile u8* bcsr = (volatile u8*)CONFIG_SYS_BCSR;
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48
49 /* Enable flash write */
50 bcsr[1] &= ~0x01;
51
6d0f6bcf 52#ifdef CONFIG_SYS_USE_MPC834XSYS_USB_PHY
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53 /* Use USB PHY on SYS board */
54 bcsr[5] |= 0x02;
55#endif
56
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57 return 0;
58}
59
60#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1)
61
9973e3c6 62phys_size_t initdram (int board_type)
991425fe 63{
6d0f6bcf 64 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
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65 u32 msize = 0;
66
67 if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
68 return -1;
69
70 /* DDR SDRAM - Main SODIMM */
6d0f6bcf 71 im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR;
991425fe 72#if defined(CONFIG_SPD_EEPROM)
dc9e499c 73 msize = spd_sdram();
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74#else
75 msize = fixed_sdram();
76#endif
77 /*
78 * Initialize SDRAM if it is on local bus.
79 */
80 sdram_init();
81
82#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
83 /*
84 * Initialize and enable DDR ECC.
85 */
86 ddr_enable_ecc(msize * 1024 * 1024);
87#endif
bbea46f7 88
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89 /* return total bus SDRAM size(bytes) -- DDR */
90 return (msize * 1024 * 1024);
91}
92
93#if !defined(CONFIG_SPD_EEPROM)
94/*************************************************************************
95 * fixed sdram init -- doesn't use serial presence detect.
96 ************************************************************************/
97int fixed_sdram(void)
98{
6d0f6bcf 99 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
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100 u32 msize = 0;
101 u32 ddr_size;
102 u32 ddr_size_log2;
103
6d0f6bcf 104 msize = CONFIG_SYS_DDR_SIZE;
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105 for (ddr_size = msize << 20, ddr_size_log2 = 0;
106 (ddr_size > 1);
107 ddr_size = ddr_size>>1, ddr_size_log2++) {
108 if (ddr_size & 1) {
109 return -1;
110 }
111 }
6d0f6bcf 112 im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000;
991425fe 113 im->sysconf.ddrlaw[0].ar = LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
dc9e499c 114
6d0f6bcf 115#if (CONFIG_SYS_DDR_SIZE != 256)
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116#warning Currenly any ddr size other than 256 is not supported
117#endif
d61853cf 118#ifdef CONFIG_DDR_II
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119 im->ddr.csbnds[2].csbnds = CONFIG_SYS_DDR_CS2_BNDS;
120 im->ddr.cs_config[2] = CONFIG_SYS_DDR_CS2_CONFIG;
121 im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
122 im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
123 im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
124 im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
125 im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
126 im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
127 im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
128 im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
129 im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
130 im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CNTL;
d61853cf 131#else
dc9e499c 132 im->ddr.csbnds[2].csbnds = 0x0000000f;
6d0f6bcf 133 im->ddr.cs_config[2] = CONFIG_SYS_DDR_CONFIG;
dc9e499c 134
cf48eb9a 135 /* currently we use only one CS, so disable the other banks */
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136 im->ddr.cs_config[0] = 0;
137 im->ddr.cs_config[1] = 0;
138 im->ddr.cs_config[3] = 0;
139
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140 im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
141 im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
cf48eb9a 142
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143 im->ddr.sdram_cfg =
144 SDRAM_CFG_SREN
145#if defined(CONFIG_DDR_2T_TIMING)
146 | SDRAM_CFG_2T_EN
147#endif
148 | 2 << SDRAM_CFG_SDRAM_TYPE_SHIFT;
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149#if defined (CONFIG_DDR_32BIT)
150 /* for 32-bit mode burst length is 8 */
151 im->ddr.sdram_cfg |= (SDRAM_CFG_32_BE | SDRAM_CFG_8_BE);
152#endif
6d0f6bcf 153 im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
991425fe 154
6d0f6bcf 155 im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
d61853cf 156#endif
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157 udelay(200);
158
dc9e499c 159 /* enable DDR controller */
991425fe 160 im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
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161 return msize;
162}
6d0f6bcf 163#endif/*!CONFIG_SYS_SPD_EEPROM*/
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164
165
166int checkboard (void)
167{
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168 /*
169 * Warning: do not read the BCSR registers here
170 *
171 * There is a timing bug in the 8349E and 8349EA BCSR code
172 * version 1.2 (read from BCSR 11) that will cause the CFI
173 * flash initialization code to overwrite BCSR 0, disabling
174 * the serial ports and gigabit ethernet
175 */
176
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177 puts("Board: Freescale MPC8349EMDS\n");
178 return 0;
179}
180
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181/*
182 * if MPC8349EMDS is soldered with SDRAM
183 */
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184#if defined(CONFIG_SYS_BR2_PRELIM) \
185 && defined(CONFIG_SYS_OR2_PRELIM) \
186 && defined(CONFIG_SYS_LBLAWBAR2_PRELIM) \
187 && defined(CONFIG_SYS_LBLAWAR2_PRELIM)
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188/*
189 * Initialize SDRAM memory on the Local Bus.
190 */
191
192void sdram_init(void)
193{
6d0f6bcf 194 volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
f6eda7f8 195 volatile lbus83xx_t *lbc= &immap->lbus;
6d0f6bcf 196 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
991425fe 197
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198 /*
199 * Setup SDRAM Base and Option Registers, already done in cpu_init.c
200 */
201
202 /* setup mtrpt, lsrt and lbcr for LB bus */
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203 lbc->lbcr = CONFIG_SYS_LBC_LBCR;
204 lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
205 lbc->lsrt = CONFIG_SYS_LBC_LSRT;
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206 asm("sync");
207
208 /*
209 * Configure the SDRAM controller Machine Mode Register.
210 */
6d0f6bcf 211 lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5; /* 0x40636733; normal operation */
991425fe 212
6d0f6bcf 213 lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_1; /* 0x68636733; precharge all the banks */
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214 asm("sync");
215 *sdram_addr = 0xff;
216 udelay(100);
217
6d0f6bcf 218 lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_2; /* 0x48636733; auto refresh */
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219 asm("sync");
220 /*1 times*/
221 *sdram_addr = 0xff;
222 udelay(100);
223 /*2 times*/
224 *sdram_addr = 0xff;
225 udelay(100);
226 /*3 times*/
227 *sdram_addr = 0xff;
228 udelay(100);
229 /*4 times*/
230 *sdram_addr = 0xff;
231 udelay(100);
232 /*5 times*/
233 *sdram_addr = 0xff;
234 udelay(100);
235 /*6 times*/
236 *sdram_addr = 0xff;
237 udelay(100);
238 /*7 times*/
239 *sdram_addr = 0xff;
240 udelay(100);
241 /*8 times*/
242 *sdram_addr = 0xff;
243 udelay(100);
244
245 /* 0x58636733; mode register write operation */
6d0f6bcf 246 lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_4;
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247 asm("sync");
248 *sdram_addr = 0xff;
249 udelay(100);
250
6d0f6bcf 251 lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5; /* 0x40636733; normal operation */
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252 asm("sync");
253 *sdram_addr = 0xff;
254 udelay(100);
255}
256#else
257void sdram_init(void)
258{
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259}
260#endif
d326f4a2 261
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262/*
263 * The following are used to control the SPI chip selects for the SPI command.
264 */
f8cc312b 265#ifdef CONFIG_MPC8XXX_SPI
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266
267#define SPI_CS_MASK 0x80000000
268
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269int spi_cs_is_valid(unsigned int bus, unsigned int cs)
270{
271 return bus == 0 && cs == 0;
272}
273
274void spi_cs_activate(struct spi_slave *slave)
80ddd226 275{
6d0f6bcf 276 volatile gpio83xx_t *iopd = &((immap_t *)CONFIG_SYS_IMMR)->gpio[0];
80ddd226 277
d255bb0e 278 iopd->dat &= ~SPI_CS_MASK;
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279}
280
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281void spi_cs_deactivate(struct spi_slave *slave)
282{
6d0f6bcf 283 volatile gpio83xx_t *iopd = &((immap_t *)CONFIG_SYS_IMMR)->gpio[0];
80ddd226 284
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285 iopd->dat |= SPI_CS_MASK;
286}
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287#endif /* CONFIG_HARD_SPI */
288
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289#if defined(CONFIG_OF_BOARD_SETUP)
290void ft_board_setup(void *blob, bd_t *bd)
bf0b542d 291{
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292 ft_cpu_setup(blob, bd);
293#ifdef CONFIG_PCI
294 ft_pci_setup(blob, bd);
295#endif
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296}
297#endif