xref: /openbmc/u-boot/board/Marvell/openrd/openrd.c (revision d7c11502)
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/mach-types.h>
17 #include <asm/arch/cpu.h>
18 #include <asm/arch/soc.h>
19 #include <asm/arch/mpp.h>
20 #include "openrd.h"
21 
22 DECLARE_GLOBAL_DATA_PTR;
23 
24 int board_early_init_f(void)
25 {
26 	/*
27 	 * default gpio configuration
28 	 * There are maximum 64 gpios controlled through 2 sets of registers
29 	 * the  below configuration configures mainly initial LED status
30 	 */
31 	mvebu_config_gpio(OPENRD_OE_VAL_LOW,
32 			  OPENRD_OE_VAL_HIGH,
33 			  OPENRD_OE_LOW, OPENRD_OE_HIGH);
34 
35 	/* Multi-Purpose Pins Functionality configuration */
36 	static const u32 kwmpp_config[] = {
37 		MPP0_NF_IO2,
38 		MPP1_NF_IO3,
39 		MPP2_NF_IO4,
40 		MPP3_NF_IO5,
41 		MPP4_NF_IO6,
42 		MPP5_NF_IO7,
43 		MPP6_SYSRST_OUTn,
44 		MPP7_GPO,
45 		MPP8_TW_SDA,
46 		MPP9_TW_SCK,
47 		MPP10_UART0_TXD,
48 		MPP11_UART0_RXD,
49 		MPP12_SD_CLK,
50 		MPP13_SD_CMD, /* Alt UART1_TXD */
51 		MPP14_SD_D0,  /* Alt UART1_RXD */
52 		MPP15_SD_D1,
53 		MPP16_SD_D2,
54 		MPP17_SD_D3,
55 		MPP18_NF_IO0,
56 		MPP19_NF_IO1,
57 		MPP20_GE1_0,
58 		MPP21_GE1_1,
59 		MPP22_GE1_2,
60 		MPP23_GE1_3,
61 		MPP24_GE1_4,
62 		MPP25_GE1_5,
63 		MPP26_GE1_6,
64 		MPP27_GE1_7,
65 		MPP28_GPIO,
66 		MPP29_TSMP9,
67 		MPP30_GE1_10,
68 		MPP31_GE1_11,
69 		MPP32_GE1_12,
70 		MPP33_GE1_13,
71 		MPP34_GPIO,   /* UART1 / SD sel */
72 		MPP35_TDM_CH0_TX_QL,
73 		MPP36_TDM_SPI_CS1,
74 		MPP37_TDM_CH2_TX_QL,
75 		MPP38_TDM_CH2_RX_QL,
76 		MPP39_AUDIO_I2SBCLK,
77 		MPP40_AUDIO_I2SDO,
78 		MPP41_AUDIO_I2SLRC,
79 		MPP42_AUDIO_I2SMCLK,
80 		MPP43_AUDIO_I2SDI,
81 		MPP44_AUDIO_EXTCLK,
82 		MPP45_TDM_PCLK,
83 		MPP46_TDM_FS,
84 		MPP47_TDM_DRX,
85 		MPP48_TDM_DTX,
86 		MPP49_TDM_CH0_RX_QL,
87 		0
88 	};
89 
90 	kirkwood_mpp_conf(kwmpp_config, NULL);
91 	return 0;
92 }
93 
94 int board_init(void)
95 {
96 	/*
97 	 * arch number of board
98 	 */
99 #if defined(CONFIG_BOARD_IS_OPENRD_BASE)
100 	gd->bd->bi_arch_number = MACH_TYPE_OPENRD_BASE;
101 #elif defined(CONFIG_BOARD_IS_OPENRD_CLIENT)
102 	gd->bd->bi_arch_number = MACH_TYPE_OPENRD_CLIENT;
103 #elif defined(CONFIG_BOARD_IS_OPENRD_ULTIMATE)
104 	gd->bd->bi_arch_number = MACH_TYPE_OPENRD_ULTIMATE;
105 #endif
106 
107 	/* adress of boot parameters */
108 	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
109 	return 0;
110 }
111 
112 #ifdef CONFIG_RESET_PHY_R
113 /* Configure and enable MV88E1116/88E1121 PHY */
114 void mv_phy_init(char *name)
115 {
116 	u16 reg;
117 	u16 devadr;
118 
119 	if (miiphy_set_current_dev(name))
120 		return;
121 
122 	/* command to read PHY dev address */
123 	if (miiphy_read(name, 0xEE, 0xEE, (u16 *)&devadr)) {
124 		printf("Err..%s could not read PHY dev address\n", __func__);
125 		return;
126 	}
127 
128 	/*
129 	 * Enable RGMII delay on Tx and Rx for CPU port
130 	 * Ref: sec 4.7.2 of chip datasheet
131 	 */
132 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
133 	miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
134 	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
135 	miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
136 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
137 
138 	/* reset the phy */
139 	miiphy_reset(name, devadr);
140 
141 	printf(PHY_NO" Initialized on %s\n", name);
142 }
143 
144 void reset_phy(void)
145 {
146 	mv_phy_init("egiga0");
147 
148 #ifdef CONFIG_BOARD_IS_OPENRD_CLIENT
149 	/* Kirkwood ethernet driver is written with the assumption that in case
150 	 * of multiple PHYs, their addresses are consecutive. But unfortunately
151 	 * in case of OpenRD-Client, PHY addresses are not consecutive.*/
152 	miiphy_write("egiga1", 0xEE, 0xEE, 24);
153 #endif
154 
155 #if defined(CONFIG_BOARD_IS_OPENRD_CLIENT) || \
156 	defined(CONFIG_BOARD_IS_OPENRD_ULTIMATE)
157 	/* configure and initialize both PHY's */
158 	mv_phy_init("egiga1");
159 #endif
160 }
161 #endif /* CONFIG_RESET_PHY_R */
162