blob: 8ba1b193a4b518ff9b72894a7cef5cf7122aa233 [file] [log] [blame]
Heiko Schocher4e43b2e2010-07-07 12:26:34 +02001/*
2 * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
3 *
4 * Author: Scott Wood <scottwood@freescale.com>
5 *
6 * (C) Copyright 2010
7 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
8 *
9 * See file CREDITS for list of people who contributed to this
10 * project.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS for A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * MA 02111-1307 USA
26 */
27
28#include <common.h>
29#include <libfdt.h>
30#include <pci.h>
31#include <mpc83xx.h>
32#include <ns16550.h>
33#include <nand.h>
34
35#include <asm/bitops.h>
36#include <asm/io.h>
37
38DECLARE_GLOBAL_DATA_PTR;
39
40extern void disable_addr_trans (void);
41extern void enable_addr_trans (void);
42
43int checkboard(void)
44{
45 puts("Board: ve8313\n");
46 return 0;
47}
48
49static long fixed_sdram(void)
50{
51 u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
52
53#ifndef CONFIG_SYS_RAMBOOT
54 volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
55 u32 msize_log2 = __ilog2(msize);
56
57 out_be32(&im->sysconf.ddrlaw[0].bar,
58 (CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000));
59 out_be32(&im->sysconf.ddrlaw[0].ar, (LBLAWAR_EN | (msize_log2 - 1)));
60 out_be32(&im->sysconf.ddrcdr, CONFIG_SYS_DDRCDR_VALUE);
61
62 /*
63 * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg],
64 * or the DDR2 controller may fail to initialize correctly.
65 */
66 __udelay(50000);
67
68 out_be32(&im->ddr.csbnds[0].csbnds, (msize - 1) >> 24);
69 out_be32(&im->ddr.cs_config[0], CONFIG_SYS_DDR_CONFIG);
70
71 /* Currently we use only one CS, so disable the other bank. */
72 out_be32(&im->ddr.cs_config[1], 0);
73
74 out_be32(&im->ddr.sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CNTL);
75 out_be32(&im->ddr.timing_cfg_3, CONFIG_SYS_DDR_TIMING_3);
76 out_be32(&im->ddr.timing_cfg_1, CONFIG_SYS_DDR_TIMING_1);
77 out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
78 out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
79
80 out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_SDRAM_CFG);
81
82 out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_SDRAM_CFG2);
83 out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE);
84 out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE_2);
85
86 out_be32(&im->ddr.sdram_interval, CONFIG_SYS_DDR_INTERVAL);
87 sync();
88
89 /* enable DDR controller */
90 setbits_be32(&im->ddr.sdram_cfg, SDRAM_CFG_MEM_EN);
91
92 /* now check the real size */
93 disable_addr_trans ();
94 msize = get_ram_size (CONFIG_SYS_DDR_BASE, msize);
95 enable_addr_trans ();
96#endif
97
98 return msize;
99}
100
101phys_size_t initdram(int board_type)
102{
103 volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
104 volatile fsl_lbus_t *lbc = &im->lbus;
105 u32 msize;
106
107 if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
108 return -1;
109
110 /* DDR SDRAM - Main SODIMM */
111 msize = fixed_sdram();
112
113 /* Local Bus setup lbcr and mrtpr */
114 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
115 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
116 sync();
117
118 /* return total bus SDRAM size(bytes) -- DDR */
119 return msize;
120}
121
122#define VE8313_WDT_EN 0x00020000
123#define VE8313_WDT_TRIG 0x00040000
124
125int board_early_init_f (void)
126{
127 volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
128 volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)im->gpio;
129
130#if defined(CONFIG_HW_WATCHDOG)
131 /* enable WDT */
132 clrbits_be32(&gpio->dat, VE8313_WDT_EN | VE8313_WDT_TRIG);
133#else
134 /* disable WDT */
135 setbits_be32(&gpio->dat, VE8313_WDT_EN | VE8313_WDT_TRIG);
136#endif
137 /* set WDT pins as output */
138 setbits_be32(&gpio->dir, VE8313_WDT_EN | VE8313_WDT_TRIG);
139
140 return 0;
141}
142
143#if defined(CONFIG_HW_WATCHDOG)
144void hw_watchdog_reset(void)
145{
146 volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
147 volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)im->gpio;
148 unsigned long reg;
149
150 reg = in_be32(&gpio->dat);
151 if (reg & VE8313_WDT_TRIG)
152 clrbits_be32(&gpio->dat, VE8313_WDT_TRIG);
153 else
154 setbits_be32(&gpio->dat, VE8313_WDT_TRIG);
155}
156#endif
157
158
159#if defined(CONFIG_PCI)
160static struct pci_region pci_regions[] = {
161 {
162 bus_start: CONFIG_SYS_PCI1_MEM_BASE,
163 phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
164 size: CONFIG_SYS_PCI1_MEM_SIZE,
165 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
166 },
167 {
168 bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
169 phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
170 size: CONFIG_SYS_PCI1_MMIO_SIZE,
171 flags: PCI_REGION_MEM
172 },
173 {
174 bus_start: CONFIG_SYS_PCI1_IO_BASE,
175 phys_start: CONFIG_SYS_PCI1_IO_PHYS,
176 size: CONFIG_SYS_PCI1_IO_SIZE,
177 flags: PCI_REGION_IO
178 }
179};
180
181void pci_init_board(void)
182{
183 volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
184 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
185 volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
186 struct pci_region *reg[] = { pci_regions };
187 int warmboot;
188
189 /* Enable all 3 PCI_CLK_OUTPUTs. */
190 setbits_be32(&clk->occr, 0xe0000000);
191
192 /*
193 * Configure PCI Local Access Windows
194 */
195 out_be32(&pci_law[0].bar, CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR);
196 out_be32(&pci_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
197
198 out_be32(&pci_law[1].bar, CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR);
199 out_be32(&pci_law[1].ar, LBLAWAR_EN | LBLAWAR_1MB);
200
201 warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
202
203 mpc83xx_pci_init(1, reg, warmboot);
204}
205#endif
206
207#if defined(CONFIG_OF_BOARD_SETUP)
208void ft_board_setup(void *blob, bd_t *bd)
209{
210 ft_cpu_setup(blob, bd);
211#ifdef CONFIG_PCI
212 ft_pci_setup(blob, bd);
213#endif
214}
215#endif