1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Maintainer :
4 * Tapani Utriainen <linuxfae@technexion.com>
5 */
6 #include <common.h>
7 #include <bootstage.h>
8 #include <init.h>
9 #include <malloc.h>
10 #include <netdev.h>
11 #include <twl4030.h>
12 #include <asm/global_data.h>
13 #include <asm/io.h>
14 #include <asm/arch/mmc_host_def.h>
15 #include <asm/arch/mem.h>
16 #include <asm/arch/mux.h>
17 #include <asm/arch/sys_proto.h>
18 #include <asm/arch/gpio.h>
19 #include <asm/gpio.h>
20 #include <asm/mach-types.h>
21
22 #include <usb.h>
23 #include <asm/ehci-omap.h>
24
25 #include "tao3530.h"
26
27 DECLARE_GLOBAL_DATA_PTR;
28
tao3530_revision(void)29 int tao3530_revision(void)
30 {
31 int ret = 0;
32
33 /* char *label argument is unused in gpio_request() */
34 ret = gpio_request(65, "");
35 if (ret) {
36 puts("Error: GPIO 65 not available\n");
37 goto out;
38 }
39 MUX_VAL(CP(GPMC_WAIT3), (IEN | PTU | EN | M4));
40
41 ret = gpio_request(1, "");
42 if (ret) {
43 puts("Error: GPIO 1 not available\n");
44 goto out2;
45 }
46 MUX_VAL(CP(SYS_CLKREQ), (IEN | PTU | EN | M4));
47
48 ret = gpio_direction_input(65);
49 if (ret) {
50 puts("Error: GPIO 65 not available for input\n");
51 goto out3;
52 }
53
54 ret = gpio_direction_input(1);
55 if (ret) {
56 puts("Error: GPIO 1 not available for input\n");
57 goto out3;
58 }
59
60 ret = gpio_get_value(65) << 1 | gpio_get_value(1);
61
62 out3:
63 MUX_VAL(CP(SYS_CLKREQ), (IEN | PTU | EN | M0));
64 gpio_free(1);
65 out2:
66 MUX_VAL(CP(GPMC_WAIT3), (IEN | PTU | EN | M0));
67 gpio_free(65);
68 out:
69
70 return ret;
71 }
72
73 #ifdef CONFIG_SPL_BUILD
74 /*
75 * Routine: get_board_mem_timings
76 * Description: If we use SPL then there is no x-loader nor config header
77 * so we have to setup the DDR timings ourself on both banks.
78 */
get_board_mem_timings(struct board_sdrc_timings * timings)79 void get_board_mem_timings(struct board_sdrc_timings *timings)
80 {
81 #if defined(CONFIG_SYS_BOARD_OMAP3_HA)
82 /*
83 * Switch baseboard LED to red upon power-on
84 */
85 MUX_OMAP3_HA();
86
87 /* Request a gpio before using it */
88 gpio_request(111, "");
89 /* Sets the gpio as output and its value to 1, switch LED to red */
90 gpio_direction_output(111, 1);
91 #endif
92
93 if (tao3530_revision() < 3) {
94 /* 256MB / Bank */
95 timings->mcfg = MCFG(256 << 20, 14); /* RAS-width 14 */
96 timings->ctrla = HYNIX_V_ACTIMA_165;
97 timings->ctrlb = HYNIX_V_ACTIMB_165;
98 } else {
99 /* 128MB / Bank */
100 timings->mcfg = MCFG(128 << 20, 13); /* RAS-width 13 */
101 timings->ctrla = MICRON_V_ACTIMA_165;
102 timings->ctrlb = MICRON_V_ACTIMB_165;
103 }
104
105 timings->mr = MICRON_V_MR_165;
106 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
107 }
108 #endif
109
110 /*
111 * Routine: board_init
112 * Description: Early hardware init.
113 */
board_init(void)114 int board_init(void)
115 {
116 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
117 /* board id for Linux */
118 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_TAO3530;
119 /* boot param addr */
120 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
121
122 return 0;
123 }
124
125 /*
126 * Routine: misc_init_r
127 * Description: Configure board specific parts
128 */
misc_init_r(void)129 int misc_init_r(void)
130 {
131 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
132 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
133
134 twl4030_power_init();
135 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
136
137 /* Configure GPIOs to output */
138 /* GPIO23 */
139 writel(~(GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
140 writel(~(GPIO31 | GPIO30 | GPIO22 | GPIO21 |
141 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
142
143 /* Set GPIOs */
144 writel(GPIO10 | GPIO8 | GPIO2 | GPIO1,
145 &gpio6_base->setdataout);
146 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
147 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
148
149 switch (tao3530_revision()) {
150 case 0:
151 puts("TAO-3530 REV Reserve 1\n");
152 break;
153 case 1:
154 puts("TAO-3530 REV Reserve 2\n");
155 break;
156 case 2:
157 puts("TAO-3530 REV Cx\n");
158 break;
159 case 3:
160 puts("TAO-3530 REV Ax/Bx\n");
161 break;
162 default:
163 puts("Unknown board revision\n");
164 }
165
166 omap_die_id_display();
167
168 return 0;
169 }
170
171 /*
172 * Routine: set_muxconf_regs
173 * Description: Setting up the configuration Mux registers specific to the
174 * hardware. Many pins need to be moved from protect to primary
175 * mode.
176 */
set_muxconf_regs(void)177 void set_muxconf_regs(void)
178 {
179 MUX_TAO3530();
180 #if defined(CONFIG_SYS_BOARD_OMAP3_HA)
181 MUX_OMAP3_HA();
182 #endif
183 }
184
185 #if defined(CONFIG_MMC)
board_mmc_init(struct bd_info * bis)186 int board_mmc_init(struct bd_info *bis)
187 {
188 omap_mmc_init(0, 0, 0, -1, -1);
189
190 return 0;
191 }
192 #endif
193
194 #if defined(CONFIG_MMC)
board_mmc_power_init(void)195 void board_mmc_power_init(void)
196 {
197 twl4030_power_mmc_init(0);
198 }
199 #endif
200
201 #if defined(CONFIG_USB_EHCI_HCD) && !defined(CONFIG_SPL_BUILD)
202 /* Call usb_stop() before starting the kernel */
show_boot_progress(int val)203 void show_boot_progress(int val)
204 {
205 if (val == BOOTSTAGE_ID_RUN_OS)
206 usb_stop();
207 }
208
209 static struct omap_usbhs_board_data usbhs_bdata = {
210 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
211 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
212 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
213 };
214
ehci_hcd_init(int index,enum usb_init_type init,struct ehci_hccr ** hccr,struct ehci_hcor ** hcor)215 int ehci_hcd_init(int index, enum usb_init_type init,
216 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
217 {
218 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
219 }
220
ehci_hcd_stop(int index)221 int ehci_hcd_stop(int index)
222 {
223 return omap_ehci_hcd_stop();
224 }
225 #endif /* CONFIG_USB_EHCI_HCD */
226