1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
4 *
5 * Authors: Igor Grinberg <grinberg@compulab.co.il>
6 */
7
8 #include <common.h>
9 #include <environment.h>
10 #include <status_led.h>
11 #include <net.h>
12 #include <netdev.h>
13 #include <usb.h>
14 #include <mmc.h>
15 #include <linux/compiler.h>
16 #include <linux/usb/musb.h>
17
18 #include <asm/io.h>
19 #include <asm/arch/mem.h>
20 #include <asm/arch/am35x_def.h>
21 #include <asm/arch/mmc_host_def.h>
22 #include <asm/arch/sys_proto.h>
23 #include <asm/arch/musb.h>
24 #include <asm/omap_musb.h>
25 #include <asm/ehci-omap.h>
26
27 #include "../common/common.h"
28 #include "../common/eeprom.h"
29
30 DECLARE_GLOBAL_DATA_PTR;
31
32 const omap3_sysinfo sysinfo = {
33 DDR_DISCRETE,
34 "CM-T3517 board",
35 "NAND 128/512M",
36 };
37
38 #ifdef CONFIG_USB_MUSB_AM35X
39 static struct musb_hdrc_config cm_t3517_musb_config = {
40 .multipoint = 1,
41 .dyn_fifo = 1,
42 .num_eps = 16,
43 .ram_bits = 12,
44 };
45
46 static struct omap_musb_board_data cm_t3517_musb_board_data = {
47 .set_phy_power = am35x_musb_phy_power,
48 .clear_irq = am35x_musb_clear_irq,
49 .reset = am35x_musb_reset,
50 };
51
52 static struct musb_hdrc_platform_data cm_t3517_musb_pdata = {
53 #if defined(CONFIG_USB_MUSB_HOST)
54 .mode = MUSB_HOST,
55 #elif defined(CONFIG_USB_MUSB_GADGET)
56 .mode = MUSB_PERIPHERAL,
57 #else
58 #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET"
59 #endif
60 .config = &cm_t3517_musb_config,
61 .power = 250,
62 .platform_ops = &am35x_ops,
63 .board_data = &cm_t3517_musb_board_data,
64 };
65
cm_t3517_musb_init(void)66 static void cm_t3517_musb_init(void)
67 {
68 /*
69 * Set up USB clock/mode in the DEVCONF2 register.
70 * USB2.0 PHY reference clock is 13 MHz
71 */
72 clrsetbits_le32(&am35x_scm_general_regs->devconf2,
73 CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
74 CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
75 CONF2_VBDTCTEN | CONF2_DATPOL);
76
77 if (!musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
78 (void *)AM35XX_IPSS_USBOTGSS_BASE))
79 printf("Failed initializing AM35x MUSB!\n");
80 }
81 #else
am3517_evm_musb_init(void)82 static inline void am3517_evm_musb_init(void) {}
83 #endif
84
board_init(void)85 int board_init(void)
86 {
87 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
88
89 /* boot param addr */
90 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
91
92 #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
93 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON);
94 #endif
95
96 cm_t3517_musb_init();
97
98 return 0;
99 }
100
101 /*
102 * Routine: get_board_rev
103 * Description: read system revision
104 */
get_board_rev(void)105 u32 get_board_rev(void)
106 {
107 return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS);
108 };
109
misc_init_r(void)110 int misc_init_r(void)
111 {
112 cl_print_pcb_info();
113 omap_die_id_display();
114
115 return 0;
116 }
117
118 #if defined(CONFIG_MMC)
119 #define SB_T35_CD_GPIO 144
120 #define SB_T35_WP_GPIO 59
121
board_mmc_init(bd_t * bis)122 int board_mmc_init(bd_t *bis)
123 {
124 return omap_mmc_init(0, 0, 0, SB_T35_CD_GPIO, SB_T35_WP_GPIO);
125 }
126 #endif
127
128 #ifdef CONFIG_DRIVER_TI_EMAC
129 #define CONTROL_EFUSE_EMAC_LSB 0x48002380
130 #define CONTROL_EFUSE_EMAC_MSB 0x48002384
131
am3517_get_efuse_enetaddr(u8 * enetaddr)132 static int am3517_get_efuse_enetaddr(u8 *enetaddr)
133 {
134 u32 lsb = __raw_readl(CONTROL_EFUSE_EMAC_LSB);
135 u32 msb = __raw_readl(CONTROL_EFUSE_EMAC_MSB);
136
137 enetaddr[0] = (u8)((msb >> 16) & 0xff);
138 enetaddr[1] = (u8)((msb >> 8) & 0xff);
139 enetaddr[2] = (u8)(msb & 0xff);
140 enetaddr[3] = (u8)((lsb >> 16) & 0xff);
141 enetaddr[4] = (u8)((lsb >> 8) & 0xff);
142 enetaddr[5] = (u8)(lsb & 0xff);
143
144 return is_valid_ethaddr(enetaddr);
145 }
146
cm_t3517_init_emac(bd_t * bis)147 static inline int cm_t3517_init_emac(bd_t *bis)
148 {
149 int ret = cpu_eth_init(bis);
150
151 if (ret > 0)
152 return ret;
153
154 printf("Failed initializing EMAC! ");
155 return 0;
156 }
157 #else /* !CONFIG_DRIVER_TI_EMAC */
am3517_get_efuse_enetaddr(u8 * enetaddr)158 static inline int am3517_get_efuse_enetaddr(u8 *enetaddr) { return 1; }
cm_t3517_init_emac(bd_t * bis)159 static inline int cm_t3517_init_emac(bd_t *bis) { return 0; }
160 #endif /* CONFIG_DRIVER_TI_EMAC */
161
162 /*
163 * Routine: handle_mac_address
164 * Description: prepare MAC address for on-board Ethernet.
165 */
cm_t3517_handle_mac_address(void)166 static int cm_t3517_handle_mac_address(void)
167 {
168 unsigned char enetaddr[6];
169 int ret;
170
171 ret = eth_env_get_enetaddr("ethaddr", enetaddr);
172 if (ret)
173 return 0;
174
175 ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS);
176 if (ret) {
177 ret = am3517_get_efuse_enetaddr(enetaddr);
178 if (ret)
179 return ret;
180 }
181
182 if (!is_valid_ethaddr(enetaddr))
183 return -1;
184
185 return eth_env_set_enetaddr("ethaddr", enetaddr);
186 }
187
188 #define SB_T35_ETH_RST_GPIO 164
189
190 /*
191 * Routine: board_eth_init
192 * Description: initialize module and base-board Ethernet chips
193 */
board_eth_init(bd_t * bis)194 int board_eth_init(bd_t *bis)
195 {
196 int rc = 0, rc1 = 0;
197
198 rc1 = cm_t3517_handle_mac_address();
199 if (rc1)
200 printf("No MAC address found! ");
201
202 rc1 = cm_t3517_init_emac(bis);
203 if (rc1 > 0)
204 rc++;
205
206 rc1 = cl_omap3_smc911x_init(0, 4, CONFIG_SMC911X_BASE,
207 NULL, SB_T35_ETH_RST_GPIO);
208 if (rc1 > 0)
209 rc++;
210
211 return rc;
212 }
213
214 #ifdef CONFIG_USB_EHCI_OMAP
215 static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = {
216 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
217 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
218 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
219 };
220
221 #define CM_T3517_USB_HUB_RESET_GPIO 152
222 #define SB_T35_USB_HUB_RESET_GPIO 98
223
ehci_hcd_init(int index,enum usb_init_type init,struct ehci_hccr ** hccr,struct ehci_hcor ** hcor)224 int ehci_hcd_init(int index, enum usb_init_type init,
225 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
226 {
227 cl_usb_hub_init(CM_T3517_USB_HUB_RESET_GPIO, "cm-t3517 hub rst");
228 cl_usb_hub_init(SB_T35_USB_HUB_RESET_GPIO, "sb-t35 hub rst");
229
230 return omap_ehci_hcd_init(index, &cm_t3517_usbhs_bdata, hccr, hcor);
231 }
232
ehci_hcd_stop(void)233 int ehci_hcd_stop(void)
234 {
235 cl_usb_hub_deinit(CM_T3517_USB_HUB_RESET_GPIO);
236 cl_usb_hub_deinit(SB_T35_USB_HUB_RESET_GPIO);
237
238 return omap_ehci_hcd_stop();
239 }
240 #endif /* CONFIG_USB_EHCI_OMAP */
241