3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
7 * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
10 * Texas Instruments, <www.ti.com>
11 * Kshitij Gupta <Kshitij@ti.com>
15 * Philippe Robin, <philippe.robin@arm.com>
17 * See file CREDITS for list of people who contributed to this
20 * This program is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU General Public License as
22 * published by the Free Software Foundation; either version 2 of
23 * the License, or (at your option) any later version.
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
40 #include "integrator-sc.h"
42 DECLARE_GLOBAL_DATA_PTR;
44 void peripheral_power_enable (void);
46 #if defined(CONFIG_SHOW_BOOT_PROGRESS)
47 void show_boot_progress(int progress)
49 printf("Boot reached stage %d\n", progress);
53 #define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
56 * Miscellaneous platform dependent initialisations
63 /* arch number of Integrator Board */
64 #ifdef CONFIG_ARCH_CINTEGRATOR
65 gd->bd->bi_arch_number = MACH_TYPE_CINTEGRATOR;
67 gd->bd->bi_arch_number = MACH_TYPE_INTEGRATOR;
70 /* adress of boot parameters */
71 gd->bd->bi_boot_params = 0x00000100;
75 #ifdef CONFIG_CM_REMAP
76 extern void cm_remap(void);
77 cm_remap(); /* remaps writeable memory to 0x00000000 */
80 #ifdef CONFIG_ARCH_CINTEGRATOR
82 * Flash protection on the Integrator/CP is in a simple register
84 val = readl(CP_FLASHPROG);
85 val |= (CP_FLASHPROG_FLVPPEN | CP_FLASHPROG_FLWREN);
86 writel(val, CP_FLASHPROG);
89 * The Integrator/AP has some special protection mechanisms
90 * for the external memories, first the External Bus Interface (EBI)
91 * then the system controller (SC).
93 * The system comes up with the flash memory non-writable and
94 * configuration locked. If we want U-Boot to be used for flash
95 * access we cannot have the flash memory locked.
97 writel(EBI_UNLOCK_MAGIC, EBI_BASE + EBI_LOCK_REG);
98 val = readl(EBI_BASE + EBI_CSR1_REG);
99 val &= EBI_CSR_WREN_MASK;
100 val |= EBI_CSR_WREN_ENABLE;
101 writel(val, EBI_BASE + EBI_CSR1_REG);
102 writel(0, EBI_BASE + EBI_LOCK_REG);
105 * Set up the system controller to remove write protection from
106 * the flash memory and enable Vpp
108 writel(SC_CTRL_FLASHVPP | SC_CTRL_FLASHWP, SC_CTRLS);
116 int misc_init_r (void)
118 setenv("verify", "n");
123 * The Integrator remaps the Flash memory to 0x00000000 and executes U-Boot
124 * from there, which means we cannot test the RAM underneath the ROM at this
125 * point. It will be unmapped later on, when we are executing from the
126 * relocated in RAM U-Boot. We simply assume that this RAM is usable if the
127 * RAM on higher addresses works fine.
129 #define REMAPPED_FLASH_SZ 0x40000
133 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
134 #ifdef CONFIG_CM_SPD_DETECT
136 extern void dram_query(void);
140 dram_query(); /* Assembler accesses to CM registers */
141 /* Queries the SPD values */
143 /* Obtain the SDRAM size from the CM SDRAM register */
145 cm_reg_sdram = readl(CM_BASE + OS_SDRAM);
146 /* Register SDRAM size
148 * 0xXXXXXXbbb000bb 16 MB
149 * 0xXXXXXXbbb001bb 32 MB
150 * 0xXXXXXXbbb010bb 64 MB
151 * 0xXXXXXXbbb011bb 128 MB
152 * 0xXXXXXXbbb100bb 256 MB
155 sdram_shift = ((cm_reg_sdram & 0x0000001C)/4)%4;
156 gd->ram_size = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE +
158 0x01000000 << sdram_shift);
161 gd->ram_size = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE +
164 #endif /* CM_SPD_DETECT */
165 /* We only have one bank of RAM, set it to whatever was detected */
166 gd->bd->bi_dram[0].size = gd->ram_size;
171 #ifdef CONFIG_CMD_NET
172 int board_eth_init(bd_t *bis)
175 #ifdef CONFIG_SMC91111
176 rc = smc91111_initialize(0, CONFIG_SMC91111_BASE);
178 rc += pci_eth_init(bis);