xref: /openbmc/u-boot/board/Marvell/openrd/openrd.c (revision 23ff8633)
1 /*
2  * (C) Copyright 2009
3  * Net Insight <www.netinsight.net>
4  * Written-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
5  *
6  * Based on sheevaplug.c:
7  * (C) Copyright 2009
8  * Marvell Semiconductor <www.marvell.com>
9  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
10  *
11  * SPDX-License-Identifier:	GPL-2.0+
12  */
13 
14 #include <common.h>
15 #include <miiphy.h>
16 #include <asm/arch/cpu.h>
17 #include <asm/arch/soc.h>
18 #include <asm/arch/mpp.h>
19 #include "openrd.h"
20 
21 DECLARE_GLOBAL_DATA_PTR;
22 
23 int board_early_init_f(void)
24 {
25 	/*
26 	 * default gpio configuration
27 	 * There are maximum 64 gpios controlled through 2 sets of registers
28 	 * the  below configuration configures mainly initial LED status
29 	 */
30 	mvebu_config_gpio(OPENRD_OE_VAL_LOW,
31 			  OPENRD_OE_VAL_HIGH,
32 			  OPENRD_OE_LOW, OPENRD_OE_HIGH);
33 
34 	/* Multi-Purpose Pins Functionality configuration */
35 	static const u32 kwmpp_config[] = {
36 		MPP0_NF_IO2,
37 		MPP1_NF_IO3,
38 		MPP2_NF_IO4,
39 		MPP3_NF_IO5,
40 		MPP4_NF_IO6,
41 		MPP5_NF_IO7,
42 		MPP6_SYSRST_OUTn,
43 		MPP7_GPO,
44 		MPP8_TW_SDA,
45 		MPP9_TW_SCK,
46 		MPP10_UART0_TXD,
47 		MPP11_UART0_RXD,
48 		MPP12_SD_CLK,
49 		MPP13_SD_CMD, /* Alt UART1_TXD */
50 		MPP14_SD_D0,  /* Alt UART1_RXD */
51 		MPP15_SD_D1,
52 		MPP16_SD_D2,
53 		MPP17_SD_D3,
54 		MPP18_NF_IO0,
55 		MPP19_NF_IO1,
56 		MPP20_GE1_0,
57 		MPP21_GE1_1,
58 		MPP22_GE1_2,
59 		MPP23_GE1_3,
60 		MPP24_GE1_4,
61 		MPP25_GE1_5,
62 		MPP26_GE1_6,
63 		MPP27_GE1_7,
64 		MPP28_GPIO,
65 		MPP29_TSMP9,
66 		MPP30_GE1_10,
67 		MPP31_GE1_11,
68 		MPP32_GE1_12,
69 		MPP33_GE1_13,
70 		MPP34_GPIO,   /* UART1 / SD sel */
71 		MPP35_TDM_CH0_TX_QL,
72 		MPP36_TDM_SPI_CS1,
73 		MPP37_TDM_CH2_TX_QL,
74 		MPP38_TDM_CH2_RX_QL,
75 		MPP39_AUDIO_I2SBCLK,
76 		MPP40_AUDIO_I2SDO,
77 		MPP41_AUDIO_I2SLRC,
78 		MPP42_AUDIO_I2SMCLK,
79 		MPP43_AUDIO_I2SDI,
80 		MPP44_AUDIO_EXTCLK,
81 		MPP45_TDM_PCLK,
82 		MPP46_TDM_FS,
83 		MPP47_TDM_DRX,
84 		MPP48_TDM_DTX,
85 		MPP49_TDM_CH0_RX_QL,
86 		0
87 	};
88 
89 	kirkwood_mpp_conf(kwmpp_config, NULL);
90 	return 0;
91 }
92 
93 int board_init(void)
94 {
95 	/*
96 	 * arch number of board
97 	 */
98 #if defined(CONFIG_BOARD_IS_OPENRD_BASE)
99 	gd->bd->bi_arch_number = MACH_TYPE_OPENRD_BASE;
100 #elif defined(CONFIG_BOARD_IS_OPENRD_CLIENT)
101 	gd->bd->bi_arch_number = MACH_TYPE_OPENRD_CLIENT;
102 #elif defined(CONFIG_BOARD_IS_OPENRD_ULTIMATE)
103 	gd->bd->bi_arch_number = MACH_TYPE_OPENRD_ULTIMATE;
104 #endif
105 
106 	/* adress of boot parameters */
107 	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
108 	return 0;
109 }
110 
111 #ifdef CONFIG_RESET_PHY_R
112 /* Configure and enable MV88E1116/88E1121 PHY */
113 void mv_phy_init(char *name)
114 {
115 	u16 reg;
116 	u16 devadr;
117 
118 	if (miiphy_set_current_dev(name))
119 		return;
120 
121 	/* command to read PHY dev address */
122 	if (miiphy_read(name, 0xEE, 0xEE, (u16 *)&devadr)) {
123 		printf("Err..%s could not read PHY dev address\n", __func__);
124 		return;
125 	}
126 
127 	/*
128 	 * Enable RGMII delay on Tx and Rx for CPU port
129 	 * Ref: sec 4.7.2 of chip datasheet
130 	 */
131 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
132 	miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
133 	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
134 	miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
135 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
136 
137 	/* reset the phy */
138 	miiphy_reset(name, devadr);
139 
140 	printf(PHY_NO" Initialized on %s\n", name);
141 }
142 
143 void reset_phy(void)
144 {
145 	mv_phy_init("egiga0");
146 
147 #ifdef CONFIG_BOARD_IS_OPENRD_CLIENT
148 	/* Kirkwood ethernet driver is written with the assumption that in case
149 	 * of multiple PHYs, their addresses are consecutive. But unfortunately
150 	 * in case of OpenRD-Client, PHY addresses are not consecutive.*/
151 	miiphy_write("egiga1", 0xEE, 0xEE, 24);
152 #endif
153 
154 #if defined(CONFIG_BOARD_IS_OPENRD_CLIENT) || \
155 	defined(CONFIG_BOARD_IS_OPENRD_ULTIMATE)
156 	/* configure and initialize both PHY's */
157 	mv_phy_init("egiga1");
158 #endif
159 }
160 #endif /* CONFIG_RESET_PHY_R */
161