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Andre Schwarza1293e52008-06-10 09:14:05 +02001/*
Kumar Gala4c2e3da2009-07-28 21:49:52 -05002 * Copyright (C) Freescale Semiconductor, Inc. 2006.
Andre Schwarza1293e52008-06-10 09:14:05 +02003 *
4 * (C) Copyright 2008
5 * Andre Schwarz, Matrix Vision GmbH, andre.schwarz@matrix-vision.de
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
26#include <common.h>
27#if defined(CONFIG_OF_LIBFDT)
28#include <libfdt.h>
29#endif
30#include <pci.h>
31#include <mpc83xx.h>
Kim Phillips2329fe12008-06-10 13:25:24 -050032#include <fpga.h>
Andre Schwarza1293e52008-06-10 09:14:05 +020033#include "mvblm7.h"
Kim Phillips2329fe12008-06-10 13:25:24 -050034#include "fpga.h"
Andre Schwarza1293e52008-06-10 09:14:05 +020035
36DECLARE_GLOBAL_DATA_PTR;
37
Andre Schwarza1293e52008-06-10 09:14:05 +020038int mvblm7_load_fpga(void)
39{
40 size_t data_size = 0;
41 void *fpga_data = NULL;
42 char *datastr = getenv("fpgadata");
43 char *sizestr = getenv("fpgadatasize");
44
45 if (datastr)
46 fpga_data = (void *)simple_strtoul(datastr, NULL, 16);
47 if (sizestr)
48 data_size = (size_t)simple_strtoul(sizestr, NULL, 16);
49
50 return fpga_load(0, fpga_data, data_size);
51}
52
53static struct pci_region pci_regions[] = {
54 {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020055 bus_start: CONFIG_SYS_PCI1_MEM_BASE,
56 phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
57 size: CONFIG_SYS_PCI1_MEM_SIZE,
Andre Schwarza1293e52008-06-10 09:14:05 +020058 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
59 },
60 {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020061 bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
62 phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
63 size: CONFIG_SYS_PCI1_MMIO_SIZE,
Andre Schwarza1293e52008-06-10 09:14:05 +020064 flags: PCI_REGION_MEM
65 },
66 {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020067 bus_start: CONFIG_SYS_PCI1_IO_BASE,
68 phys_start: CONFIG_SYS_PCI1_IO_PHYS,
69 size: CONFIG_SYS_PCI1_IO_SIZE,
Andre Schwarza1293e52008-06-10 09:14:05 +020070 flags: PCI_REGION_IO
71 }
72};
73
74void pci_init_board(void)
75{
76 char *s;
77 int i;
78 int warmboot;
79 int load_fpga;
80 volatile immap_t *immr;
81 volatile pcictrl83xx_t *pci_ctrl;
82 volatile gpio83xx_t *gpio;
83 volatile clk83xx_t *clk;
84 volatile law83xx_t *pci_law;
85 struct pci_region *reg[] = { pci_regions };
86
87 load_fpga = 1;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020088 immr = (immap_t *) CONFIG_SYS_IMMR;
Andre Schwarza1293e52008-06-10 09:14:05 +020089 clk = (clk83xx_t *) &immr->clk;
90 pci_ctrl = immr->pci_ctrl;
91 pci_law = immr->sysconf.pcilaw;
92 gpio = (volatile gpio83xx_t *)&immr->gpio[0];
93
94 s = getenv("skip_fpga");
95 if (s) {
96 printf("found 'skip_fpga' -> FPGA _not_ loaded !\n");
97 load_fpga = 0;
98 }
99
100 gpio->dat = MV_GPIO_DAT;
101 gpio->odr = MV_GPIO_ODE;
102 if (load_fpga)
103 gpio->dir = MV_GPIO_OUT;
104 else
105 gpio->dir = MV_GPIO_OUT & ~(FPGA_DIN|FPGA_CCLK);
106
107 printf("SICRH / SICRL : 0x%08x / 0x%08x\n", immr->sysconf.sicrh,
108 immr->sysconf.sicrl);
109
110 mvblm7_init_fpga();
111 if (load_fpga)
112 mvblm7_load_fpga();
113
114 /* Enable PCI_CLK_OUTPUTs 0 and 1 with 1:1 clocking */
115 clk->occr = 0xc0000000;
116
117 pci_ctrl[0].gcr = 0;
118 udelay(2000);
119 pci_ctrl[0].gcr = 1;
120
121 for (i = 0; i < 1000; ++i)
122 udelay(1000);
123
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200124 pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
Andre Schwarza1293e52008-06-10 09:14:05 +0200125 pci_law[0].ar = LBLAWAR_EN | LBLAWAR_1GB;
126
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200127 pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
Andre Schwarza1293e52008-06-10 09:14:05 +0200128 pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
129
130 warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
131
132 mpc83xx_pci_init(1, reg, warmboot);
133}