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Merge branch 'master' of git://git.denx.de/u-boot-mpc83xx
[karo-tx-uboot.git] / board / sheldon / simpc8313 / simpc8313.c
1 /*
2  * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
3  * Copyright (C) Sheldon Instruments, Inc. 2008
4  *
5  * Author: Ron Madrid <info@sheldoninst.com>
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 #include <libfdt.h>
28 #include <pci.h>
29 #include <mpc83xx.h>
30 #include <ns16550.h>
31 #include <nand.h>
32 #include <asm/io.h>
33
34 DECLARE_GLOBAL_DATA_PTR;
35
36 int checkboard(void)
37 {
38         puts("Board: Sheldon Instruments SIMPC8313\n");
39         return 0;
40 }
41
42 #ifndef CONFIG_NAND_SPL
43 static struct pci_region pci_regions[] = {
44         {
45                 bus_start: CONFIG_SYS_PCI1_MEM_BASE,
46                 phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
47                 size: CONFIG_SYS_PCI1_MEM_SIZE,
48                 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
49         },
50         {
51                 bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
52                 phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
53                 size: CONFIG_SYS_PCI1_MMIO_SIZE,
54                 flags: PCI_REGION_MEM
55         },
56         {
57                 bus_start: CONFIG_SYS_PCI1_IO_BASE,
58                 phys_start: CONFIG_SYS_PCI1_IO_PHYS,
59                 size: CONFIG_SYS_PCI1_IO_SIZE,
60                 flags: PCI_REGION_IO
61         }
62 };
63
64 void pci_init_board(void)
65 {
66         volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
67         volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
68         volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
69         struct pci_region *reg[] = { pci_regions };
70         int warmboot;
71
72         /* Enable all 3 PCI_CLK_OUTPUTs. */
73         clk->occr |= 0xe0000000;
74
75         /*
76          * Configure PCI Local Access Windows
77          */
78         pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
79         pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
80
81         pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
82         pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
83
84         warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
85
86         mpc83xx_pci_init(1, reg, warmboot);
87 }
88
89 /*
90  * Miscellaneous late-boot configurations
91  */
92 int misc_init_r(void)
93 {
94         int rc = 0;
95         immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
96         fsl_lbus_t *lbus = &immap->lbus;
97         u32 *mxmr = &lbus->mamr;        /* Pointer to mamr */
98
99         /* UPM Table Configuration Code */
100         static uint UPMATable[] = {
101                 /* Read Single-Beat (RSS) */
102                 0x0fff0c00, 0x0fffdc00, 0x0fff0c05, 0xfffffc00,
103                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
104                 /* Read Burst (RBS) */
105                 0x0fff0c00, 0x0ffcdc00, 0x0ffc0c00, 0x0ffc0f0c,
106                 0x0ffccf0c, 0x0ffc0f0c, 0x0ffcce0c, 0x3ffc0c05,
107                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
108                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
109                 /* Write Single-Beat (WSS) */
110                 0x0ffc0c00, 0x0ffcdc00, 0x0ffc0c05, 0xfffffc00,
111                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
112                 /* Write Burst (WBS) */
113                 0x0ffc0c00, 0x0fffcc0c, 0x0fff0c00, 0x0fffcc00,
114                 0x0fff1c00, 0x0fffcf0c, 0x0fff0f0c, 0x0fffcf0c,
115                 0x0fff0c0c, 0x0fffcc0c, 0x0fff0c05, 0xfffffc00,
116                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
117                 /* Refresh Timer (RTS) */
118                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
119                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
120                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
121                 /* Exception Condition (EXS) */
122                 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01
123         };
124
125         upmconfig(UPMA, UPMATable, sizeof(UPMATable) / sizeof(UPMATable[0]));
126
127         /* Set LUPWAIT to be active low and enabled */
128         out_be32(mxmr, MxMR_UWPL | MxMR_GPL_x4DIS);
129
130         return rc;
131 }
132
133 #if defined(CONFIG_OF_BOARD_SETUP)
134 void ft_board_setup(void *blob, bd_t *bd)
135 {
136         ft_cpu_setup(blob, bd);
137 #ifdef CONFIG_PCI
138         ft_pci_setup(blob, bd);
139 #endif
140 }
141 #endif
142 #else /* CONFIG_NAND_SPL */
143 void board_init_f(ulong bootflag)
144 {
145         NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500),
146                                 CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
147         puts("NAND boot... ");
148         init_timebase();
149         initdram(0);
150         relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, (gd_t *)gd,
151                                   CONFIG_SYS_NAND_U_BOOT_RELOC);
152 }
153
154 void board_init_r(gd_t *gd, ulong dest_addr)
155 {
156         nand_boot();
157 }
158
159 void putc(char c)
160 {
161         if (gd->flags & GD_FLG_SILENT)
162                 return;
163
164         if (c == '\n')
165                 NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r');
166
167         NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c);
168 }
169 #endif