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c0dcece7 1/*
820969f3 2 * Board functions for TI AM335X based draco board
c0dcece7
HS
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
37DECLARE_GLOBAL_DATA_PTR;
38
39#ifdef CONFIG_SPL_BUILD
820969f3 40static struct draco_baseboard_id __attribute__((section(".data"))) settings;
823b2c4c
ES
41
42#if DDR_PLL_FREQ == 303
43/* Default@303MHz-i0 */
44const 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 */
c0dcece7 53const struct ddr3_data ddr3_default = {
823b2c4c
ES
54 0x33524444, 0x56312e35, 0x0080, 0x0000, 0x0039, 0x0046, 0x00ab,
55 0x0080, 0x0AAAA4DB, 0x26307FDA, 0x501F821F, 0x00100207, 0x61A45232,
56eb3da4 56 0x00000618, 0x0000014A,
823b2c4c
ES
57 "default name @400MHz \0",
58 "default marking \0",
c0dcece7 59};
823b2c4c 60#endif
c0dcece7
HS
61
62static void set_default_ddr3_timings(void)
63{
64 printf("Set default DDR3 settings\n");
65 settings.ddr3 = ddr3_default;
66}
67
68static void print_ddr3_timings(void)
69{
823b2c4c
ES
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");
c0dcece7
HS
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);
56eb3da4 94 PRINTARGS(ioctr_val);
c0dcece7
HS
95}
96
97static void print_chip_data(void)
98{
823b2c4c
ES
99 printf("\nCPU BOARD\n");
100 printf("device: \t'%s'\n", settings.chip.sdevname);
101 printf("hw version: \t'%s'\n", settings.chip.shwver);
c0dcece7
HS
102}
103#endif /* CONFIG_SPL_BUILD */
104
105/*
106 * Read header information from EEPROM into global structure.
107 */
108static 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)
823b2c4c 133 printf("Warning: No valid DDR3 data in eeprom.\n");
c0dcece7 134 if (ddr3_default.version != settings.ddr3.version)
823b2c4c 135 printf("Warning: DDR3 data version does not match.\n");
c0dcece7
HS
136
137 printf("Using default settings\n");
138 set_default_ddr3_timings();
139 }
140
820969f3 141 if (MAGIC_CHIP == settings.chip.magic)
c0dcece7 142 print_chip_data();
820969f3 143 else
823b2c4c 144 printf("Warning: No chip data in eeprom\n");
c0dcece7
HS
145
146 print_ddr3_timings();
147#endif
148 return 0;
149}
150
151#ifdef CONFIG_SPL_BUILD
152static void board_init_ddr(void)
153{
820969f3 154struct emif_regs draco_ddr3_emif_reg_data = {
c0dcece7
HS
155 .zq_config = 0x50074BE4,
156};
157
820969f3 158struct ddr_data draco_ddr3_data = {
c0dcece7
HS
159};
160
820969f3 161struct cmd_control draco_ddr3_cmd_ctrl_data = {
c0dcece7 162};
965de8b9 163
820969f3 164struct ctrl_ioregs draco_ddr3_ioregs = {
965de8b9
LV
165};
166
c0dcece7 167 /* pass values from eeprom */
820969f3
ES
168 draco_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1;
169 draco_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2;
170 draco_ddr3_emif_reg_data.sdram_tim3 = settings.ddr3.sdram_tim3;
171 draco_ddr3_emif_reg_data.emif_ddr_phy_ctlr_1 =
c0dcece7 172 settings.ddr3.emif_ddr_phy_ctlr_1;
820969f3
ES
173 draco_ddr3_emif_reg_data.sdram_config = settings.ddr3.sdram_config;
174 draco_ddr3_emif_reg_data.ref_ctrl = settings.ddr3.ref_ctrl;
175
176 draco_ddr3_data.datardsratio0 = settings.ddr3.dt0rdsratio0;
177 draco_ddr3_data.datawdsratio0 = settings.ddr3.dt0wdsratio0;
178 draco_ddr3_data.datafwsratio0 = settings.ddr3.dt0fwsratio0;
179 draco_ddr3_data.datawrsratio0 = settings.ddr3.dt0wrsratio0;
180
181 draco_ddr3_cmd_ctrl_data.cmd0csratio = settings.ddr3.ddr3_sratio;
182 draco_ddr3_cmd_ctrl_data.cmd0iclkout = settings.ddr3.iclkout;
183 draco_ddr3_cmd_ctrl_data.cmd1csratio = settings.ddr3.ddr3_sratio;
184 draco_ddr3_cmd_ctrl_data.cmd1iclkout = settings.ddr3.iclkout;
185 draco_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio;
186 draco_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout;
187
188 draco_ddr3_ioregs.cm0ioctl = settings.ddr3.ioctr_val,
189 draco_ddr3_ioregs.cm1ioctl = settings.ddr3.ioctr_val,
190 draco_ddr3_ioregs.cm2ioctl = settings.ddr3.ioctr_val,
191 draco_ddr3_ioregs.dt0ioctl = settings.ddr3.ioctr_val,
192 draco_ddr3_ioregs.dt1ioctl = settings.ddr3.ioctr_val,
193
194 config_ddr(DDR_PLL_FREQ, &draco_ddr3_ioregs, &draco_ddr3_data,
195 &draco_ddr3_cmd_ctrl_data, &draco_ddr3_emif_reg_data, 0);
c0dcece7
HS
196}
197
198static void spl_siemens_board_init(void)
199{
200 return;
201}
202#endif /* if def CONFIG_SPL_BUILD */
203
204#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
205 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
206static void cpsw_control(int enabled)
207{
208 /* VTP can be added here */
209
210 return;
211}
212
213static struct cpsw_slave_data cpsw_slaves[] = {
214 {
215 .slave_reg_ofs = 0x208,
216 .sliver_reg_ofs = 0xd80,
9c653aad 217 .phy_addr = 0,
c0dcece7
HS
218 .phy_if = PHY_INTERFACE_MODE_MII,
219 },
220};
221
222static struct cpsw_platform_data cpsw_data = {
223 .mdio_base = CPSW_MDIO_BASE,
224 .cpsw_base = CPSW_BASE,
225 .mdio_div = 0xff,
226 .channels = 4,
227 .cpdma_reg_ofs = 0x800,
228 .slaves = 1,
229 .slave_data = cpsw_slaves,
230 .ale_reg_ofs = 0xd00,
231 .ale_entries = 1024,
232 .host_port_reg_ofs = 0x108,
233 .hw_stats_reg_ofs = 0x900,
234 .bd_ram_ofs = 0x2000,
235 .mac_control = (1 << 5),
236 .control = cpsw_control,
237 .host_port_num = 0,
238 .version = CPSW_CTRL_VERSION_2,
239};
240
241#if defined(CONFIG_DRIVER_TI_CPSW) || \
242 (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
243int board_eth_init(bd_t *bis)
244{
245 struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
246 int n = 0;
247 int rv;
248
249 factoryset_setenv();
250
251 /* Set rgmii mode and enable rmii clock to be sourced from chip */
252 writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
253
254 rv = cpsw_register(&cpsw_data);
255 if (rv < 0)
256 printf("Error %d registering CPSW switch\n", rv);
257 else
258 n += rv;
259 return n;
260}
ec716e33
SR
261
262static int do_switch_reset(cmd_tbl_t *cmdtp, int flag, int argc,
263 char *const argv[])
264{
265 /* Reset SMSC LAN9303 switch for default configuration */
266 gpio_request(GPIO_LAN9303_NRST, "nRST");
267 gpio_direction_output(GPIO_LAN9303_NRST, 0);
268 /* assert active low reset for 200us */
269 udelay(200);
270 gpio_set_value(GPIO_LAN9303_NRST, 1);
271
272 return 0;
273};
274
275U_BOOT_CMD(
276 switch_rst, CONFIG_SYS_MAXARGS, 1, do_switch_reset,
277 "Reset LAN9303 switch via its reset pin",
278 ""
279);
c0dcece7
HS
280#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
281#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
282
283#include "../common/board.c"