1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Board functions for TI AM335X based rut board
4 * (C) Copyright 2013 Siemens Schweiz AG
5 * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
6 *
7 * Based on:
8 * u-boot:/board/ti/am335x/board.c
9 *
10 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
11 */
12
13 #include <common.h>
14 #include <env.h>
15 #include <errno.h>
16 #include <init.h>
17 #include <malloc.h>
18 #include <net.h>
19 #include <spi.h>
20 #include <spl.h>
21 #include <asm/arch/cpu.h>
22 #include <asm/arch/hardware.h>
23 #include <asm/arch/omap.h>
24 #include <asm/arch/ddr_defs.h>
25 #include <asm/arch/clock.h>
26 #include <asm/arch/gpio.h>
27 #include <asm/arch/mmc_host_def.h>
28 #include <asm/arch/sys_proto.h>
29 #include <asm/io.h>
30 #include <asm/emif.h>
31 #include <asm/gpio.h>
32 #include <i2c.h>
33 #include <miiphy.h>
34 #include <cpsw.h>
35 #include <video.h>
36 #include <watchdog.h>
37 #include <linux/delay.h>
38 #include "board.h"
39 #include "../common/factoryset.h"
40
41 /*
42 * Read header information from EEPROM into global structure.
43 */
read_eeprom(void)44 static int read_eeprom(void)
45 {
46 return 0;
47 }
48
49 #ifdef CONFIG_SPL_BUILD
board_init_ddr(void)50 static void board_init_ddr(void)
51 {
52 struct emif_regs rut_ddr3_emif_reg_data = {
53 .sdram_config = 0x61C04AB2,
54 .sdram_tim1 = 0x0888A39B,
55 .sdram_tim2 = 0x26337FDA,
56 .sdram_tim3 = 0x501F830F,
57 .emif_ddr_phy_ctlr_1 = 0x6,
58 .zq_config = 0x50074BE4,
59 .ref_ctrl = 0x93B,
60 };
61
62 struct ddr_data rut_ddr3_data = {
63 .datardsratio0 = 0x3b,
64 .datawdsratio0 = 0x85,
65 .datafwsratio0 = 0x100,
66 .datawrsratio0 = 0xc1,
67 };
68
69 struct cmd_control rut_ddr3_cmd_ctrl_data = {
70 .cmd0csratio = 0x40,
71 .cmd0iclkout = 1,
72 .cmd1csratio = 0x40,
73 .cmd1iclkout = 1,
74 .cmd2csratio = 0x40,
75 .cmd2iclkout = 1,
76 };
77
78 const struct ctrl_ioregs ioregs = {
79 .cm0ioctl = RUT_IOCTRL_VAL,
80 .cm1ioctl = RUT_IOCTRL_VAL,
81 .cm2ioctl = RUT_IOCTRL_VAL,
82 .dt0ioctl = RUT_IOCTRL_VAL,
83 .dt1ioctl = RUT_IOCTRL_VAL,
84 };
85
86 config_ddr(DDR_PLL_FREQ, &ioregs, &rut_ddr3_data,
87 &rut_ddr3_cmd_ctrl_data, &rut_ddr3_emif_reg_data, 0);
88 }
89
request_and_pulse_reset(int gpio,const char * name)90 static int request_and_pulse_reset(int gpio, const char *name)
91 {
92 int ret;
93 const int delay_us = 2000; /* 2ms */
94
95 ret = gpio_request(gpio, name);
96 if (ret < 0) {
97 printf("%s: Unable to request %s\n", __func__, name);
98 goto err;
99 }
100
101 ret = gpio_direction_output(gpio, 0);
102 if (ret < 0) {
103 printf("%s: Unable to set %s as output\n", __func__, name);
104 goto err_free_gpio;
105 }
106
107 udelay(delay_us);
108
109 gpio_set_value(gpio, 1);
110
111 return 0;
112
113 err_free_gpio:
114 gpio_free(gpio);
115 err:
116 return ret;
117 }
118
119 #define GPIO_TO_PIN(bank, gpio) (32 * (bank) + (gpio))
120 #define ETH_PHY_RESET_GPIO GPIO_TO_PIN(2, 18)
121 #define MAXTOUCH_RESET_GPIO GPIO_TO_PIN(3, 18)
122 #define DISPLAY_RESET_GPIO GPIO_TO_PIN(3, 19)
123
124 #define REQUEST_AND_PULSE_RESET(N) \
125 request_and_pulse_reset(N, #N);
126
spl_siemens_board_init(void)127 static void spl_siemens_board_init(void)
128 {
129 REQUEST_AND_PULSE_RESET(ETH_PHY_RESET_GPIO);
130 REQUEST_AND_PULSE_RESET(MAXTOUCH_RESET_GPIO);
131 REQUEST_AND_PULSE_RESET(DISPLAY_RESET_GPIO);
132 }
133 #endif /* if def CONFIG_SPL_BUILD */
134
135 #if defined(CONFIG_DRIVER_TI_CPSW)
cpsw_control(int enabled)136 static void cpsw_control(int enabled)
137 {
138 /* VTP can be added here */
139
140 return;
141 }
142
143 static struct cpsw_slave_data cpsw_slaves[] = {
144 {
145 .slave_reg_ofs = 0x208,
146 .sliver_reg_ofs = 0xd80,
147 .phy_addr = 1,
148 .phy_if = PHY_INTERFACE_MODE_RMII,
149 },
150 {
151 .slave_reg_ofs = 0x308,
152 .sliver_reg_ofs = 0xdc0,
153 .phy_addr = 0,
154 .phy_if = PHY_INTERFACE_MODE_RMII,
155 },
156 };
157
158 static struct cpsw_platform_data cpsw_data = {
159 .mdio_base = CPSW_MDIO_BASE,
160 .cpsw_base = CPSW_BASE,
161 .mdio_div = 0xff,
162 .channels = 8,
163 .cpdma_reg_ofs = 0x800,
164 .slaves = 1,
165 .slave_data = cpsw_slaves,
166 .ale_reg_ofs = 0xd00,
167 .ale_entries = 1024,
168 .host_port_reg_ofs = 0x108,
169 .hw_stats_reg_ofs = 0x900,
170 .bd_ram_ofs = 0x2000,
171 .mac_control = (1 << 5),
172 .control = cpsw_control,
173 .host_port_num = 0,
174 .version = CPSW_CTRL_VERSION_2,
175 };
176
177 #if defined(CONFIG_DRIVER_TI_CPSW) || \
178 (defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET))
board_eth_init(struct bd_info * bis)179 int board_eth_init(struct bd_info *bis)
180 {
181 struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
182 int n = 0;
183 int rv;
184
185 #ifndef CONFIG_SPL_BUILD
186 factoryset_env_set();
187 #endif
188
189 /* Set rgmii mode and enable rmii clock to be sourced from chip */
190 writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
191
192 rv = cpsw_register(&cpsw_data);
193 if (rv < 0)
194 printf("Error %d registering CPSW switch\n", rv);
195 else
196 n += rv;
197 return n;
198 }
199 #endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
200 #endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
201
202 #if defined(CONFIG_HW_WATCHDOG)
203 static bool hw_watchdog_init_done;
204 static int hw_watchdog_trigger_level;
205
hw_watchdog_reset(void)206 void hw_watchdog_reset(void)
207 {
208 if (!hw_watchdog_init_done)
209 return;
210
211 hw_watchdog_trigger_level = hw_watchdog_trigger_level ? 0 : 1;
212 gpio_set_value(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
213 }
214
hw_watchdog_init(void)215 void hw_watchdog_init(void)
216 {
217 gpio_request(WATCHDOG_TRIGGER_GPIO, "watchdog_trigger");
218 gpio_direction_output(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
219
220 hw_watchdog_reset();
221
222 hw_watchdog_init_done = 1;
223 }
224 #endif /* defined(CONFIG_HW_WATCHDOG) */
225
226 #ifdef CONFIG_BOARD_LATE_INIT
board_late_init(void)227 int board_late_init(void)
228 {
229 int ret;
230 char tmp[2 * MAX_STRING_LENGTH + 2];
231
232 omap_nand_switch_ecc(1, 8);
233
234 if (factory_dat.asn[0] != 0)
235 sprintf(tmp, "%s_%s", factory_dat.asn,
236 factory_dat.comp_version);
237 else
238 strcpy(tmp, "QMX7.E38_4.0");
239
240 ret = env_set("boardid", tmp);
241 if (ret)
242 printf("error setting board id\n");
243
244 return 0;
245 }
246 #endif
247
248 #include "../common/board.c"
249