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1 /*
2 * Board functions for TI AM335X based dxr2 board
3 * (C) Copyright 2013 Siemens Schweiz AG
4 * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
5 *
6 * Based on:
7 *
8 * Board functions for TI AM335X based boards
9 * u-boot:/board/ti/am335x/board.c
10 *
11 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
12 *
13 * SPDX-License-Identifier: GPL-2.0+
14 */
15
16 #include <common.h>
17 #include <errno.h>
18 #include <spl.h>
19 #include <asm/arch/cpu.h>
20 #include <asm/arch/hardware.h>
21 #include <asm/arch/omap.h>
22 #include <asm/arch/ddr_defs.h>
23 #include <asm/arch/clock.h>
24 #include <asm/arch/gpio.h>
25 #include <asm/arch/mmc_host_def.h>
26 #include <asm/arch/sys_proto.h>
27 #include <asm/io.h>
28 #include <asm/emif.h>
29 #include <asm/gpio.h>
30 #include <i2c.h>
31 #include <miiphy.h>
32 #include <cpsw.h>
33 #include <watchdog.h>
34 #include "board.h"
35 #include "../common/factoryset.h"
36
37 DECLARE_GLOBAL_DATA_PTR;
38
39 #ifdef CONFIG_SPL_BUILD
40 static struct dxr2_baseboard_id __attribute__((section(".data"))) settings;
41
42 #if DDR_PLL_FREQ == 303
43 /* Default@303MHz-i0 */
44 const struct ddr3_data ddr3_default = {
45 0x33524444, 0x56312e35, 0x0080, 0x0000, 0x003A, 0x003F, 0x009F,
46 0x0079, 0x0888A39B, 0x26247FDA, 0x501F821F, 0x00100206, 0x61A44A32,
47 0x0000093B, 0x0000014A,
48 "default name @303MHz \0",
49 "default marking \0",
50 };
51 #elif DDR_PLL_FREQ == 400
52 /* Default@400MHz-i0 */
53 const struct ddr3_data ddr3_default = {
54 0x33524444, 0x56312e35, 0x0080, 0x0000, 0x0039, 0x0046, 0x00ab,
55 0x0080, 0x0AAAA4DB, 0x26307FDA, 0x501F821F, 0x00100207, 0x61A45232,
56 0x00000618, 0x0000014A,
57 "default name @400MHz \0",
58 "default marking \0",
59 };
60 #endif
61
62 static void set_default_ddr3_timings(void)
63 {
64 printf("Set default DDR3 settings\n");
65 settings.ddr3 = ddr3_default;
66 }
67
68 static void print_ddr3_timings(void)
69 {
70 printf("\nDDR3\n");
71 printf("clock:\t\t%d MHz\n", DDR_PLL_FREQ);
72 printf("device:\t\t%s\n", settings.ddr3.manu_name);
73 printf("marking:\t%s\n", settings.ddr3.manu_marking);
74 printf("timing parameters\n");
75 printf("diff\teeprom\tdefault\n");
76 PRINTARGS(magic);
77 PRINTARGS(version);
78 PRINTARGS(ddr3_sratio);
79 PRINTARGS(iclkout);
80
81 PRINTARGS(dt0rdsratio0);
82 PRINTARGS(dt0wdsratio0);
83 PRINTARGS(dt0fwsratio0);
84 PRINTARGS(dt0wrsratio0);
85
86 PRINTARGS(sdram_tim1);
87 PRINTARGS(sdram_tim2);
88 PRINTARGS(sdram_tim3);
89
90 PRINTARGS(emif_ddr_phy_ctlr_1);
91
92 PRINTARGS(sdram_config);
93 PRINTARGS(ref_ctrl);
94 PRINTARGS(ioctr_val);
95 }
96
97 static void print_chip_data(void)
98 {
99 printf("\nCPU BOARD\n");
100 printf("device: \t'%s'\n", settings.chip.sdevname);
101 printf("hw version: \t'%s'\n", settings.chip.shwver);
102 }
103 #endif /* CONFIG_SPL_BUILD */
104
105 /*
106 * Read header information from EEPROM into global structure.
107 */
108 static int read_eeprom(void)
109 {
110 /* Check if baseboard eeprom is available */
111 if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
112 printf("Could not probe the EEPROM; something fundamentally wrong on the I2C bus.\n");
113 return 1;
114 }
115
116 #ifdef CONFIG_SPL_BUILD
117 /* Read Siemens eeprom data (DDR3) */
118 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_DDR3, 2,
119 (uchar *)&settings.ddr3, sizeof(struct ddr3_data))) {
120 printf("Could not read the EEPROM; something fundamentally wrong on the I2C bus.\nUse default DDR3 timings\n");
121 set_default_ddr3_timings();
122 }
123 /* Read Siemens eeprom data (CHIP) */
124 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_CHIP, 2,
125 (uchar *)&settings.chip, sizeof(settings.chip)))
126 printf("Could not read chip settings\n");
127
128 if (ddr3_default.magic == settings.ddr3.magic &&
129 ddr3_default.version == settings.ddr3.version) {
130 printf("Using DDR3 settings from EEPROM\n");
131 } else {
132 if (ddr3_default.magic != settings.ddr3.magic)
133 printf("Warning: No valid DDR3 data in eeprom.\n");
134 if (ddr3_default.version != settings.ddr3.version)
135 printf("Warning: DDR3 data version does not match.\n");
136
137 printf("Using default settings\n");
138 set_default_ddr3_timings();
139 }
140
141 if (MAGIC_CHIP == settings.chip.magic) {
142 print_chip_data();
143 } else {
144 printf("Warning: No chip data in eeprom\n");
145 }
146
147 print_ddr3_timings();
148 #endif
149 return 0;
150 }
151
152 #ifdef CONFIG_SPL_BUILD
153 static void board_init_ddr(void)
154 {
155 struct emif_regs dxr2_ddr3_emif_reg_data = {
156 .zq_config = 0x50074BE4,
157 };
158
159 struct ddr_data dxr2_ddr3_data = {
160 };
161
162 struct cmd_control dxr2_ddr3_cmd_ctrl_data = {
163 };
164
165 struct ctrl_ioregs dxr2_ddr3_ioregs = {
166 };
167
168 /* pass values from eeprom */
169 dxr2_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1;
170 dxr2_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2;
171 dxr2_ddr3_emif_reg_data.sdram_tim3 = settings.ddr3.sdram_tim3;
172 dxr2_ddr3_emif_reg_data.emif_ddr_phy_ctlr_1 =
173 settings.ddr3.emif_ddr_phy_ctlr_1;
174 dxr2_ddr3_emif_reg_data.sdram_config = settings.ddr3.sdram_config;
175 dxr2_ddr3_emif_reg_data.ref_ctrl = settings.ddr3.ref_ctrl;
176
177 dxr2_ddr3_data.datardsratio0 = settings.ddr3.dt0rdsratio0;
178 dxr2_ddr3_data.datawdsratio0 = settings.ddr3.dt0wdsratio0;
179 dxr2_ddr3_data.datafwsratio0 = settings.ddr3.dt0fwsratio0;
180 dxr2_ddr3_data.datawrsratio0 = settings.ddr3.dt0wrsratio0;
181
182 dxr2_ddr3_cmd_ctrl_data.cmd0csratio = settings.ddr3.ddr3_sratio;
183 dxr2_ddr3_cmd_ctrl_data.cmd0iclkout = settings.ddr3.iclkout;
184 dxr2_ddr3_cmd_ctrl_data.cmd1csratio = settings.ddr3.ddr3_sratio;
185 dxr2_ddr3_cmd_ctrl_data.cmd1iclkout = settings.ddr3.iclkout;
186 dxr2_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio;
187 dxr2_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout;
188
189 dxr2_ddr3_ioregs.cm0ioctl = settings.ddr3.ioctr_val,
190 dxr2_ddr3_ioregs.cm1ioctl = settings.ddr3.ioctr_val,
191 dxr2_ddr3_ioregs.cm2ioctl = settings.ddr3.ioctr_val,
192 dxr2_ddr3_ioregs.dt0ioctl = settings.ddr3.ioctr_val,
193 dxr2_ddr3_ioregs.dt1ioctl = settings.ddr3.ioctr_val,
194
195 config_ddr(DDR_PLL_FREQ, &dxr2_ddr3_ioregs, &dxr2_ddr3_data,
196 &dxr2_ddr3_cmd_ctrl_data, &dxr2_ddr3_emif_reg_data, 0);
197 }
198
199 static void spl_siemens_board_init(void)
200 {
201 return;
202 }
203 #endif /* if def CONFIG_SPL_BUILD */
204
205 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
206 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
207 static void cpsw_control(int enabled)
208 {
209 /* VTP can be added here */
210
211 return;
212 }
213
214 static struct cpsw_slave_data cpsw_slaves[] = {
215 {
216 .slave_reg_ofs = 0x208,
217 .sliver_reg_ofs = 0xd80,
218 .phy_addr = 0,
219 .phy_if = PHY_INTERFACE_MODE_MII,
220 },
221 };
222
223 static struct cpsw_platform_data cpsw_data = {
224 .mdio_base = CPSW_MDIO_BASE,
225 .cpsw_base = CPSW_BASE,
226 .mdio_div = 0xff,
227 .channels = 4,
228 .cpdma_reg_ofs = 0x800,
229 .slaves = 1,
230 .slave_data = cpsw_slaves,
231 .ale_reg_ofs = 0xd00,
232 .ale_entries = 1024,
233 .host_port_reg_ofs = 0x108,
234 .hw_stats_reg_ofs = 0x900,
235 .bd_ram_ofs = 0x2000,
236 .mac_control = (1 << 5),
237 .control = cpsw_control,
238 .host_port_num = 0,
239 .version = CPSW_CTRL_VERSION_2,
240 };
241
242 #if defined(CONFIG_DRIVER_TI_CPSW) || \
243 (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
244 int board_eth_init(bd_t *bis)
245 {
246 struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
247 int n = 0;
248 int rv;
249
250 factoryset_setenv();
251
252 /* Set rgmii mode and enable rmii clock to be sourced from chip */
253 writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
254
255 rv = cpsw_register(&cpsw_data);
256 if (rv < 0)
257 printf("Error %d registering CPSW switch\n", rv);
258 else
259 n += rv;
260 return n;
261 }
262
263 static int do_switch_reset(cmd_tbl_t *cmdtp, int flag, int argc,
264 char *const argv[])
265 {
266 /* Reset SMSC LAN9303 switch for default configuration */
267 gpio_request(GPIO_LAN9303_NRST, "nRST");
268 gpio_direction_output(GPIO_LAN9303_NRST, 0);
269 /* assert active low reset for 200us */
270 udelay(200);
271 gpio_set_value(GPIO_LAN9303_NRST, 1);
272
273 return 0;
274 };
275
276 U_BOOT_CMD(
277 switch_rst, CONFIG_SYS_MAXARGS, 1, do_switch_reset,
278 "Reset LAN9303 switch via its reset pin",
279 ""
280 );
281 #endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
282 #endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
283
284 #include "../common/board.c"