1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2010
4 * ISEE 2007 SL, <www.iseebcn.com>
5 */
6 #include <common.h>
7 #include <env.h>
8 #include <status_led.h>
9 #include <dm.h>
10 #include <ns16550.h>
11 #include <twl4030.h>
12 #include <netdev.h>
13 #include <spl.h>
14 #include <asm/gpio.h>
15 #include <asm/io.h>
16 #include <asm/arch/mem.h>
17 #include <asm/arch/mmc_host_def.h>
18 #include <asm/arch/mux.h>
19 #include <asm/arch/sys_proto.h>
20 #include <linux/mtd/mtd.h>
21 #include <linux/mtd/rawnand.h>
22 #include <linux/mtd/onenand.h>
23 #include <jffs2/load_kernel.h>
24 #include <mtd_node.h>
25 #include <fdt_support.h>
26 #include "igep00x0.h"
27
28 static const struct ns16550_platdata igep_serial = {
29 .base = OMAP34XX_UART3,
30 .reg_shift = 2,
31 .clock = V_NS16550_CLK,
32 .fcr = UART_FCR_DEFVAL,
33 };
34
35 U_BOOT_DEVICE(igep_uart) = {
36 "ns16550_serial",
37 &igep_serial
38 };
39
40 /*
41 * Routine: get_board_revision
42 * Description: GPIO_28 and GPIO_129 are used to read board and revision from
43 * IGEP00x0 boards. First of all, it is necessary to reset USB transceiver from
44 * IGEP0030 in order to read GPIO_IGEP00X0_BOARD_DETECTION correctly, because
45 * this functionality is shared by USB HOST.
46 * Once USB reset is applied, U-boot configures these pins as input pullup to
47 * detect board and revision:
48 * IGEP0020-RF = 0b00
49 * IGEP0020-RC = 0b01
50 * IGEP0030-RG = 0b10
51 * IGEP0030-RE = 0b11
52 */
get_board_revision(void)53 static int get_board_revision(void)
54 {
55 int revision;
56
57 gpio_request(IGEP0030_USB_TRANSCEIVER_RESET,
58 "igep0030_usb_transceiver_reset");
59 gpio_direction_output(IGEP0030_USB_TRANSCEIVER_RESET, 0);
60
61 gpio_request(GPIO_IGEP00X0_BOARD_DETECTION, "igep00x0_board_detection");
62 gpio_direction_input(GPIO_IGEP00X0_BOARD_DETECTION);
63 revision = 2 * gpio_get_value(GPIO_IGEP00X0_BOARD_DETECTION);
64 gpio_free(GPIO_IGEP00X0_BOARD_DETECTION);
65
66 gpio_request(GPIO_IGEP00X0_REVISION_DETECTION,
67 "igep00x0_revision_detection");
68 gpio_direction_input(GPIO_IGEP00X0_REVISION_DETECTION);
69 revision = revision + gpio_get_value(GPIO_IGEP00X0_REVISION_DETECTION);
70 gpio_free(GPIO_IGEP00X0_REVISION_DETECTION);
71
72 gpio_free(IGEP0030_USB_TRANSCEIVER_RESET);
73
74 return revision;
75 }
76
onenand_board_init(struct mtd_info * mtd)77 int onenand_board_init(struct mtd_info *mtd)
78 {
79 if (gpmc_cs0_flash == MTD_DEV_TYPE_ONENAND) {
80 struct onenand_chip *this = mtd->priv;
81 this->base = (void *)CONFIG_SYS_ONENAND_BASE;
82 return 0;
83 }
84 return 1;
85 }
86
87 #if defined(CONFIG_CMD_NET)
reset_net_chip(int gpio)88 static void reset_net_chip(int gpio)
89 {
90 if (!gpio_request(gpio, "eth nrst")) {
91 gpio_direction_output(gpio, 1);
92 udelay(1);
93 gpio_set_value(gpio, 0);
94 udelay(40);
95 gpio_set_value(gpio, 1);
96 mdelay(10);
97 }
98 }
99
100 /*
101 * Routine: setup_net_chip
102 * Description: Setting up the configuration GPMC registers specific to the
103 * Ethernet hardware.
104 */
setup_net_chip(void)105 static void setup_net_chip(void)
106 {
107 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
108 static const u32 gpmc_lan_config[] = {
109 NET_LAN9221_GPMC_CONFIG1,
110 NET_LAN9221_GPMC_CONFIG2,
111 NET_LAN9221_GPMC_CONFIG3,
112 NET_LAN9221_GPMC_CONFIG4,
113 NET_LAN9221_GPMC_CONFIG5,
114 NET_LAN9221_GPMC_CONFIG6,
115 };
116
117 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
118 CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
119
120 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
121 writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
122 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
123 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
124 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
125 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
126 &ctrl_base->gpmc_nadv_ale);
127
128 reset_net_chip(64);
129 }
130
board_eth_init(bd_t * bis)131 int board_eth_init(bd_t *bis)
132 {
133 #ifdef CONFIG_SMC911X
134 return smc911x_initialize(0, CONFIG_SMC911X_BASE);
135 #else
136 return 0;
137 #endif
138 }
139 #else
setup_net_chip(void)140 static inline void setup_net_chip(void) {}
141 #endif
142
143 #ifdef CONFIG_OF_BOARD_SETUP
ft_enable_by_compatible(void * blob,char * compat,int enable)144 static int ft_enable_by_compatible(void *blob, char *compat, int enable)
145 {
146 int off = fdt_node_offset_by_compatible(blob, -1, compat);
147 if (off < 0)
148 return off;
149
150 if (enable)
151 fdt_status_okay(blob, off);
152 else
153 fdt_status_disabled(blob, off);
154
155 return 0;
156 }
157
ft_board_setup(void * blob,bd_t * bd)158 int ft_board_setup(void *blob, bd_t *bd)
159 {
160 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
161 static const struct node_info nodes[] = {
162 { "ti,omap2-nand", MTD_DEV_TYPE_NAND, },
163 { "ti,omap2-onenand", MTD_DEV_TYPE_ONENAND, },
164 };
165
166 fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
167 #endif
168 ft_enable_by_compatible(blob, "ti,omap2-nand",
169 gpmc_cs0_flash == MTD_DEV_TYPE_NAND);
170 ft_enable_by_compatible(blob, "ti,omap2-onenand",
171 gpmc_cs0_flash == MTD_DEV_TYPE_ONENAND);
172
173 return 0;
174 }
175 #endif
176
set_led(void)177 void set_led(void)
178 {
179 switch (get_board_revision()) {
180 case 0:
181 case 1:
182 gpio_request(IGEP0020_GPIO_LED, "igep0020_gpio_led");
183 gpio_direction_output(IGEP0020_GPIO_LED, 1);
184 break;
185 case 2:
186 case 3:
187 gpio_request(IGEP0030_GPIO_LED, "igep0030_gpio_led");
188 gpio_direction_output(IGEP0030_GPIO_LED, 0);
189 break;
190 default:
191 /* Should not happen... */
192 break;
193 }
194 }
195
set_boardname(void)196 void set_boardname(void)
197 {
198 char rev[5] = { 'F','C','G','E', };
199 int i = get_board_revision();
200
201 rev[i+1] = 0;
202 env_set("board_rev", rev + i);
203 env_set("board_name", i < 2 ? "igep0020" : "igep0030");
204 }
205
206 /*
207 * Routine: misc_init_r
208 * Description: Configure board specific parts
209 */
misc_init_r(void)210 int misc_init_r(void)
211 {
212 t2_t *t2_base = (t2_t *)T2_BASE;
213 u32 pbias_lite;
214
215 twl4030_power_init();
216
217 /* set VSIM to 1.8V */
218 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VSIM_DEDICATED,
219 TWL4030_PM_RECEIVER_VSIM_VSEL_18,
220 TWL4030_PM_RECEIVER_VSIM_DEV_GRP,
221 TWL4030_PM_RECEIVER_DEV_GRP_P1);
222
223 /* set up dual-voltage GPIOs to 1.8V */
224 pbias_lite = readl(&t2_base->pbias_lite);
225 pbias_lite &= ~PBIASLITEVMODE1;
226 pbias_lite |= PBIASLITEPWRDNZ1;
227 writel(pbias_lite, &t2_base->pbias_lite);
228 if (get_cpu_family() == CPU_OMAP36XX)
229 writel(readl(OMAP34XX_CTRL_WKUP_CTRL) |
230 OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ,
231 OMAP34XX_CTRL_WKUP_CTRL);
232
233 setup_net_chip();
234
235 omap_die_id_display();
236
237 set_led();
238
239 set_boardname();
240
241 return 0;
242 }
243
board_mtdparts_default(const char ** mtdids,const char ** mtdparts)244 void board_mtdparts_default(const char **mtdids, const char **mtdparts)
245 {
246 struct mtd_info *mtd = get_mtd_device(NULL, 0);
247 if (mtd) {
248 static char ids[24];
249 static char parts[48];
250 const char *linux_name = "omap2-nand";
251 if (strncmp(mtd->name, "onenand0", 8) == 0)
252 linux_name = "omap2-onenand";
253 snprintf(ids, sizeof(ids), "%s=%s", mtd->name, linux_name);
254 snprintf(parts, sizeof(parts), "mtdparts=%s:%dk(SPL),-(UBI)",
255 linux_name, 4 * mtd->erasesize >> 10);
256 *mtdids = ids;
257 *mtdparts = parts;
258 }
259 }
260