1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Miscelaneous DaVinci functions.
4 *
5 * Copyright (C) 2009 Nick Thompson, GE Fanuc Ltd, <nick.thompson@gefanuc.com>
6 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
7 * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
8 * Copyright (C) 2004 Texas Instruments.
9 */
10
11 #include <common.h>
12 #include <env.h>
13 #include <i2c.h>
14 #include <init.h>
15 #include <log.h>
16 #include <net.h>
17 #include <asm/arch/hardware.h>
18 #include <asm/global_data.h>
19 #include <asm/io.h>
20 #include <asm/arch/davinci_misc.h>
21
22 DECLARE_GLOBAL_DATA_PTR;
23
24 #ifndef CONFIG_SPL_BUILD
dram_init(void)25 int dram_init(void)
26 {
27 /* dram_init must store complete ramsize in gd->ram_size */
28 gd->ram_size = get_ram_size(
29 (void *)CONFIG_SYS_SDRAM_BASE,
30 CONFIG_MAX_RAM_BANK_SIZE);
31 return 0;
32 }
33
dram_init_banksize(void)34 int dram_init_banksize(void)
35 {
36 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
37 gd->bd->bi_dram[0].size = gd->ram_size;
38
39 return 0;
40 }
41 #endif
42
43 #ifdef CONFIG_DRIVER_TI_EMAC
44 /*
45 * Set the mii mode as MII or RMII
46 */
davinci_emac_mii_mode_sel(int mode_sel)47 void davinci_emac_mii_mode_sel(int mode_sel)
48 {
49 int val;
50
51 val = readl(&davinci_syscfg_regs->cfgchip3);
52 if (mode_sel == 0)
53 val &= ~(1 << 8);
54 else
55 val |= (1 << 8);
56 writel(val, &davinci_syscfg_regs->cfgchip3);
57 }
58
59 /*
60 * If there is no MAC address in the environment, then it will be initialized
61 * (silently) from the value in the EEPROM.
62 */
davinci_sync_env_enetaddr(uint8_t * rom_enetaddr)63 void davinci_sync_env_enetaddr(uint8_t *rom_enetaddr)
64 {
65 uint8_t env_enetaddr[6];
66 int ret;
67
68 ret = eth_env_get_enetaddr_by_index("eth", 0, env_enetaddr);
69 if (!ret) {
70 /*
71 * There is no MAC address in the environment, so we
72 * initialize it from the value in the EEPROM.
73 */
74 debug("### Setting environment from EEPROM MAC address = "
75 "\"%pM\"\n",
76 env_enetaddr);
77 ret = !eth_env_set_enetaddr("ethaddr", rom_enetaddr);
78 }
79 if (!ret)
80 printf("Failed to set mac address from EEPROM: %d\n", ret);
81 }
82 #endif /* CONFIG_DRIVER_TI_EMAC */
83
irq_init(void)84 void irq_init(void)
85 {
86 /*
87 * Mask all IRQs by clearing the global enable and setting
88 * the enable clear for all the 90 interrupts.
89 */
90 writel(0, &davinci_aintc_regs->ger);
91
92 writel(0, &davinci_aintc_regs->hier);
93
94 writel(0xffffffff, &davinci_aintc_regs->ecr1);
95 writel(0xffffffff, &davinci_aintc_regs->ecr2);
96 writel(0xffffffff, &davinci_aintc_regs->ecr3);
97 }
98
99 /*
100 * Enable PSC for various peripherals.
101 */
da8xx_configure_lpsc_items(const struct lpsc_resource * item,const int n_items)102 int da8xx_configure_lpsc_items(const struct lpsc_resource *item,
103 const int n_items)
104 {
105 int i;
106
107 for (i = 0; i < n_items; i++)
108 lpsc_on(item[i].lpsc_no);
109
110 return 0;
111 }
112