2 * Miscelaneous DaVinci functions.
4 * Copyright (C) 2009 Nick Thompson, GE Fanuc Ltd, <nick.thompson@gefanuc.com>
5 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
6 * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
7 * Copyright (C) 2004 Texas Instruments.
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
30 #include <asm/arch/hardware.h>
32 #include <asm/arch/davinci_misc.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 #ifndef CONFIG_SPL_BUILD
39 /* dram_init must store complete ramsize in gd->ram_size */
40 gd->ram_size = get_ram_size(
41 (void *)CONFIG_SYS_SDRAM_BASE,
42 CONFIG_MAX_RAM_BANK_SIZE);
46 void dram_init_banksize(void)
48 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
49 gd->bd->bi_dram[0].size = gd->ram_size;
53 #ifdef CONFIG_DRIVER_TI_EMAC
55 * Read ethernet MAC address from EEPROM for DVEVM compatible boards.
56 * Returns 1 if found, 0 otherwise.
58 int dvevm_read_mac_address(uint8_t *buf)
60 #ifdef CONFIG_SYS_I2C_EEPROM_ADDR
61 /* Read MAC address. */
62 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x7F00,
63 CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (uint8_t *) &buf[0], 6))
66 /* Check that MAC address is valid. */
67 if (!is_valid_ether_addr(buf))
73 printf("Read from EEPROM @ 0x%02x failed\n",
74 CONFIG_SYS_I2C_EEPROM_ADDR);
76 #endif /* CONFIG_SYS_I2C_EEPROM_ADDR */
82 * Set the mii mode as MII or RMII
84 #if defined(CONFIG_SOC_DA8XX)
85 void davinci_emac_mii_mode_sel(int mode_sel)
89 val = readl(&davinci_syscfg_regs->cfgchip3);
94 writel(val, &davinci_syscfg_regs->cfgchip3);
98 * If there is no MAC address in the environment, then it will be initialized
99 * (silently) from the value in the EEPROM.
101 void davinci_sync_env_enetaddr(uint8_t *rom_enetaddr)
103 uint8_t env_enetaddr[6];
105 eth_getenv_enetaddr_by_index("eth", 0, env_enetaddr);
106 if (!memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
108 * There is no MAC address in the environment, so we
109 * initialize it from the value in the EEPROM.
111 debug("### Setting environment from EEPROM MAC address = "
114 eth_setenv_enetaddr("ethaddr", rom_enetaddr);
117 #endif /* CONFIG_DRIVER_TI_EMAC */
119 #if defined(CONFIG_SOC_DA8XX)
120 #ifndef CONFIG_USE_IRQ
124 * Mask all IRQs by clearing the global enable and setting
125 * the enable clear for all the 90 interrupts.
127 writel(0, &davinci_aintc_regs->ger);
129 writel(0, &davinci_aintc_regs->hier);
131 writel(0xffffffff, &davinci_aintc_regs->ecr1);
132 writel(0xffffffff, &davinci_aintc_regs->ecr2);
133 writel(0xffffffff, &davinci_aintc_regs->ecr3);
138 * Enable PSC for various peripherals.
140 int da8xx_configure_lpsc_items(const struct lpsc_resource *item,
145 for (i = 0; i < n_items; i++)
146 lpsc_on(item[i].lpsc_no);