1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Board functions for TI AM335X based pxm2 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 * Board functions for TI AM335X based boards
11 *
12 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
13 */
14
15 #include <common.h>
16 #include <env.h>
17 #include <errno.h>
18 #include <init.h>
19 #include <log.h>
20 #include <malloc.h>
21 #include <net.h>
22 #include <spl.h>
23 #include <asm/arch/cpu.h>
24 #include <asm/arch/hardware.h>
25 #include <asm/arch/omap.h>
26 #include <asm/arch/ddr_defs.h>
27 #include <asm/arch/clock.h>
28 #include <asm/arch/gpio.h>
29 #include <asm/arch/mmc_host_def.h>
30 #include <asm/arch/sys_proto.h>
31 #include <asm/io.h>
32 #include <asm/emif.h>
33 #include <asm/gpio.h>
34 #include <i2c.h>
35 #include <miiphy.h>
36 #include <cpsw.h>
37 #include <watchdog.h>
38 #include "board.h"
39 #include "../common/factoryset.h"
40 #include "pmic.h"
41 #include <nand.h>
42 #include <bmp_layout.h>
43
44 #ifdef CONFIG_SPL_BUILD
board_init_ddr(void)45 static void board_init_ddr(void)
46 {
47 struct emif_regs pxm2_ddr3_emif_reg_data = {
48 .sdram_config = 0x41805332,
49 .sdram_tim1 = 0x666b3c9,
50 .sdram_tim2 = 0x243631ca,
51 .sdram_tim3 = 0x33f,
52 .emif_ddr_phy_ctlr_1 = 0x100005,
53 .zq_config = 0,
54 .ref_ctrl = 0x81a,
55 };
56
57 struct ddr_data pxm2_ddr3_data = {
58 .datardsratio0 = 0x81204812,
59 .datawdsratio0 = 0,
60 .datafwsratio0 = 0x8020080,
61 .datawrsratio0 = 0x4010040,
62 };
63
64 struct cmd_control pxm2_ddr3_cmd_ctrl_data = {
65 .cmd0csratio = 0x80,
66 .cmd0iclkout = 0,
67 .cmd1csratio = 0x80,
68 .cmd1iclkout = 0,
69 .cmd2csratio = 0x80,
70 .cmd2iclkout = 0,
71 };
72
73 const struct ctrl_ioregs ioregs = {
74 .cm0ioctl = DDR_IOCTRL_VAL,
75 .cm1ioctl = DDR_IOCTRL_VAL,
76 .cm2ioctl = DDR_IOCTRL_VAL,
77 .dt0ioctl = DDR_IOCTRL_VAL,
78 .dt1ioctl = DDR_IOCTRL_VAL,
79 };
80
81 config_ddr(DDR_PLL_FREQ, &ioregs, &pxm2_ddr3_data,
82 &pxm2_ddr3_cmd_ctrl_data, &pxm2_ddr3_emif_reg_data, 0);
83 }
84
85 /*
86 * voltage switching for MPU frequency switching.
87 * @module = mpu - 0, core - 1
88 * @vddx_op_vol_sel = vdd voltage to set
89 */
90
91 #define MPU 0
92 #define CORE 1
93
voltage_update(unsigned int module,unsigned char vddx_op_vol_sel)94 int voltage_update(unsigned int module, unsigned char vddx_op_vol_sel)
95 {
96 uchar buf[4];
97 unsigned int reg_offset;
98
99 if (module == MPU)
100 reg_offset = PMIC_VDD1_OP_REG;
101 else
102 reg_offset = PMIC_VDD2_OP_REG;
103
104 /* Select VDDx OP */
105 if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
106 return 1;
107
108 buf[0] &= ~PMIC_OP_REG_CMD_MASK;
109
110 if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
111 return 1;
112
113 /* Configure VDDx OP Voltage */
114 if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
115 return 1;
116
117 buf[0] &= ~PMIC_OP_REG_SEL_MASK;
118 buf[0] |= vddx_op_vol_sel;
119
120 if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
121 return 1;
122
123 if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
124 return 1;
125
126 if ((buf[0] & PMIC_OP_REG_SEL_MASK) != vddx_op_vol_sel)
127 return 1;
128
129 return 0;
130 }
131
132 #define OSC (V_OSCK/1000000)
133
134 const struct dpll_params dpll_mpu_pxm2 = {
135 720, OSC-1, 1, -1, -1, -1, -1};
136
spl_siemens_board_init(void)137 void spl_siemens_board_init(void)
138 {
139 uchar buf[4];
140 /*
141 * pxm2 PMIC code. All boards currently want an MPU voltage
142 * of 1.2625V and CORE voltage of 1.1375V to operate at
143 * 720MHz.
144 */
145 if (i2c_probe(PMIC_CTRL_I2C_ADDR))
146 return;
147
148 /* VDD1/2 voltage selection register access by control i/f */
149 if (i2c_read(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
150 return;
151
152 buf[0] |= PMIC_DEVCTRL_REG_SR_CTL_I2C_SEL_CTL_I2C;
153
154 if (i2c_write(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
155 return;
156
157 /* Frequency switching for OPP 120 */
158 if (voltage_update(MPU, PMIC_OP_REG_SEL_1_2_6) ||
159 voltage_update(CORE, PMIC_OP_REG_SEL_1_1_3)) {
160 printf("voltage update failed\n");
161 }
162 }
163 #endif /* if def CONFIG_SPL_BUILD */
164
read_eeprom(void)165 int read_eeprom(void)
166 {
167 /* nothing ToDo here for this board */
168
169 return 0;
170 }
171
172 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
173 (defined(CONFIG_SPL_ETH) && defined(CONFIG_SPL_BUILD))
cpsw_control(int enabled)174 static void cpsw_control(int enabled)
175 {
176 /* VTP can be added here */
177
178 return;
179 }
180
181 static struct cpsw_slave_data cpsw_slaves[] = {
182 {
183 .slave_reg_ofs = 0x208,
184 .sliver_reg_ofs = 0xd80,
185 .phy_addr = 0,
186 .phy_if = PHY_INTERFACE_MODE_RMII,
187 },
188 {
189 .slave_reg_ofs = 0x308,
190 .sliver_reg_ofs = 0xdc0,
191 .phy_addr = 1,
192 .phy_if = PHY_INTERFACE_MODE_RMII,
193 },
194 };
195
196 static struct cpsw_platform_data cpsw_data = {
197 .mdio_base = CPSW_MDIO_BASE,
198 .cpsw_base = CPSW_BASE,
199 .mdio_div = 0xff,
200 .channels = 4,
201 .cpdma_reg_ofs = 0x800,
202 .slaves = 1,
203 .slave_data = cpsw_slaves,
204 .ale_reg_ofs = 0xd00,
205 .ale_entries = 1024,
206 .host_port_reg_ofs = 0x108,
207 .hw_stats_reg_ofs = 0x900,
208 .bd_ram_ofs = 0x2000,
209 .mac_control = (1 << 5),
210 .control = cpsw_control,
211 .host_port_num = 0,
212 .version = CPSW_CTRL_VERSION_2,
213 };
214 #endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
215
216 #if defined(CONFIG_DRIVER_TI_CPSW) || \
217 (defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET))
board_eth_init(struct bd_info * bis)218 int board_eth_init(struct bd_info *bis)
219 {
220 int n = 0;
221 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
222 (defined(CONFIG_SPL_ETH) && defined(CONFIG_SPL_BUILD))
223 struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
224 #ifdef CONFIG_FACTORYSET
225 int rv;
226 if (!is_valid_ethaddr(factory_dat.mac))
227 printf("Error: no valid mac address\n");
228 else
229 eth_env_set_enetaddr("ethaddr", factory_dat.mac);
230 #endif /* #ifdef CONFIG_FACTORYSET */
231
232 /* Set rgmii mode and enable rmii clock to be sourced from chip */
233 writel(RGMII_MODE_ENABLE | RGMII_INT_DELAY, &cdev->miisel);
234
235 rv = cpsw_register(&cpsw_data);
236 if (rv < 0)
237 printf("Error %d registering CPSW switch\n", rv);
238 else
239 n += rv;
240 #endif
241 return n;
242 }
243 #endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
244
245 #ifdef CONFIG_BOARD_LATE_INIT
board_late_init(void)246 int board_late_init(void)
247 {
248 int ret;
249
250 omap_nand_switch_ecc(1, 8);
251
252 #ifdef CONFIG_FACTORYSET
253 if (factory_dat.asn[0] != 0) {
254 char tmp[2 * MAX_STRING_LENGTH + 2];
255
256 if (strncmp((const char *)factory_dat.asn, "PXM50", 5) == 0)
257 factory_dat.pxm50 = 1;
258 else
259 factory_dat.pxm50 = 0;
260 sprintf(tmp, "%s_%s", factory_dat.asn,
261 factory_dat.comp_version);
262 ret = env_set("boardid", tmp);
263 if (ret)
264 printf("error setting board id\n");
265 } else {
266 factory_dat.pxm50 = 1;
267 ret = env_set("boardid", "PXM50_1.0");
268 if (ret)
269 printf("error setting board id\n");
270 }
271 debug("PXM50: %d\n", factory_dat.pxm50);
272 #endif
273
274 return 0;
275 }
276 #endif
277
278 #include "../common/board.c"
279