Gitiles
Code Review Sign In
gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 55daf1c45c6fee60840842f86796368a766c01e9 / . / board / zyxel / nsa310s / nsa310s.c
blob: e7cb6be616f858906d86db0bfff0a6926bedfb73 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -0400[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
Gerald Kermaf1df81c2015-10-23 09:50:58 +0200[diff] [blame]2/*
3 * Copyright (C) 2015
4 * Gerald Kerma <dreagle@doukki.net>
5 * Tony Dinh <mibodhi@gmail.com>
Gerald Kermaf1df81c2015-10-23 09:50:58 +0200[diff] [blame]6 */
7
8#include <common.h>
9#include <miiphy.h>
10#include <asm/arch/cpu.h>
11#include <asm/arch/soc.h>
12#include <asm/arch/mpp.h>
13#include <asm/io.h>
14#include "nsa310s.h"
15
16DECLARE_GLOBAL_DATA_PTR;
17
18int board_early_init_f(void)
19{
20 /*
21 * default gpio configuration
22 * There are maximum 64 gpios controlled through 2 sets of registers
23 * the below configuration configures mainly initial LED status
24 */
25 mvebu_config_gpio(NSA310S_VAL_LOW, NSA310S_VAL_HIGH,
26 NSA310S_OE_LOW, NSA310S_OE_HIGH);
27
28 /* (all LEDs & power off active high) */
29 /* Multi-Purpose Pins Functionality configuration */
30 static const u32 kwmpp_config[] = {
31 MPP0_NF_IO2,
32 MPP1_NF_IO3,
33 MPP2_NF_IO4,
34 MPP3_NF_IO5,
35 MPP4_NF_IO6,
36 MPP5_NF_IO7,
37 MPP6_SYSRST_OUTn,
38 MPP7_GPO,
39 MPP8_TW_SDA,
40 MPP9_TW_SCK,
41 MPP10_UART0_TXD,
42 MPP11_UART0_RXD,
43 MPP12_GPO,
44 MPP13_GPIO,
45 MPP14_GPIO,
46 MPP15_GPIO,
47 MPP16_GPIO,
48 MPP17_GPIO,
49 MPP18_NF_IO0,
50 MPP19_NF_IO1,
51 MPP20_GPIO,
52 MPP21_GPIO,
53 MPP22_GPIO,
54 MPP23_GPIO,
55 MPP24_GPIO,
56 MPP25_GPIO,
57 MPP26_GPIO,
58 MPP27_GPIO,
59 MPP28_GPIO,
60 MPP29_GPIO,
61 MPP30_GPIO,
62 MPP31_GPIO,
63 MPP32_GPIO,
64 MPP33_GPIO,
65 MPP34_GPIO,
66 MPP35_GPIO,
67 0
68 };
69 kirkwood_mpp_conf(kwmpp_config, NULL);
70 return 0;
71}
72
73int board_init(void)
74{
75 /* address of boot parameters */
76 gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
77
78 return 0;
79}
80
81#ifdef CONFIG_RESET_PHY_R
82void reset_phy(void)
83{
84 u16 reg;
85 u16 phyaddr;
86 char *name = "egiga0";
87
88 if (miiphy_set_current_dev(name))
89 return;
90
91 /* read PHY dev address */
92 if (miiphy_read(name, 0xee, 0xee, (u16 *) &phyaddr)) {
93 printf("could not read PHY dev address\n");
94 return;
95 }
96
97 /* set RGMII delay */
98 miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, MV88E1318_MAC_CTRL_PG);
99 miiphy_read(name, phyaddr, MV88E1318_MAC_CTRL_REG, &reg);
100 reg |= (MV88E1318_RGMII_RX_CTRL | MV88E1318_RGMII_TX_CTRL);
101 miiphy_write(name, phyaddr, MV88E1318_MAC_CTRL_REG, reg);
102 miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, 0);
103
104 /* reset PHY */
105 if (miiphy_reset(name, phyaddr))
106 return;
107
108 /*
109 * ZyXEL NSA310S uses the 88E1310S Alaska (interface identical to 88E1318)
110 * and has an MCU attached to the LED[2] via tristate interrupt
111 */
112
113 /* switch to LED register page */
114 miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, MV88E1318_LED_PG);
115 /* read out LED polarity register */
116 miiphy_read(name, phyaddr, MV88E1318_LED_POL_REG, &reg);
117 /* clear 4, set 5 - LED2 low, tri-state */
118 reg &= ~(MV88E1318_LED2_4);
119 reg |= (MV88E1318_LED2_5);
120 /* write back LED polarity register */
121 miiphy_write(name, phyaddr, MV88E1318_LED_POL_REG, reg);
122 /* jump back to page 0, per the PHY chip documenation. */
123 miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, 0);
124
125 /* set PHY back to auto-negotiation mode */
126 miiphy_write(name, phyaddr, 0x4, 0x1e1);
127 miiphy_write(name, phyaddr, 0x9, 0x300);
128 /* downshift */
129 miiphy_write(name, phyaddr, 0x10, 0x3860);
130 miiphy_write(name, phyaddr, 0x0, 0x9140);
131}
132#endif /* CONFIG_RESET_PHY_R */