3 * Texas Instruments Incorporated, <www.ti.com>
4 * Steve Sakoman <steve@sakoman.com>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/arch/sys_proto.h>
26 #include <asm/arch/mmc_host_def.h>
27 #include <asm/arch/clock.h>
28 #include <asm/arch/gpio.h>
31 #include "panda_mux_data.h"
33 #ifdef CONFIG_USB_EHCI
35 #include <asm/arch/ehci.h>
36 #include <asm/ehci-omap.h>
39 #define PANDA_ULPI_PHY_TYPE_GPIO 182
40 #define PANDA_BOARD_ID_1_GPIO 101
41 #define PANDA_ES_BOARD_ID_1_GPIO 48
42 #define PANDA_BOARD_ID_2_GPIO 171
43 #define PANDA_ES_BOARD_ID_3_GPIO 3
44 #define PANDA_ES_BOARD_ID_4_GPIO 2
46 DECLARE_GLOBAL_DATA_PTR;
48 const struct omap_sysinfo sysinfo = {
49 "Board: OMAP4 Panda\n"
52 struct omap4_scrm_regs *const scrm = (struct omap4_scrm_regs *)0x4a30a000;
63 gd->bd->bi_arch_number = MACH_TYPE_OMAP4_PANDA;
64 gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
69 int board_eth_init(bd_t *bis)
75 * Routine: get_board_revision
76 * Description: Detect if we are running on a panda revision A1-A6,
77 * or an ES panda board. This can be done by reading
78 * the level of GPIOs and checking the processor revisions.
79 * This should result in:
81 * GPIO171, GPIO101, GPIO182: 0 1 1 => A1-A5
82 * GPIO171, GPIO101, GPIO182: 1 0 1 => A6
84 * GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 0 1 1 => B1/B2
85 * GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 1 1 1 => B3
87 int get_board_revision(void)
89 int board_id0, board_id1, board_id2;
90 int board_id3, board_id4;
93 int processor_rev = omap_revision();
95 /* Setup the mux for the common board ID pins (gpio 171 and 182) */
96 writew((IEN | M3), (*ctrl)->control_padconf_core_base + UNIPRO_TX0);
97 writew((IEN | M3), (*ctrl)->control_padconf_core_base + FREF_CLK2_OUT);
99 board_id0 = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
100 board_id2 = gpio_get_value(PANDA_BOARD_ID_2_GPIO);
102 if ((processor_rev >= OMAP4460_ES1_0 &&
103 processor_rev <= OMAP4460_ES1_1)) {
105 * Setup the mux for the ES specific board ID pins (gpio 101,
108 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
110 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
112 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
115 board_id1 = gpio_get_value(PANDA_ES_BOARD_ID_1_GPIO);
116 board_id3 = gpio_get_value(PANDA_ES_BOARD_ID_3_GPIO);
117 board_id4 = gpio_get_value(PANDA_ES_BOARD_ID_4_GPIO);
119 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
120 setenv("board_name", strcat(CONFIG_SYS_BOARD, "-es"));
122 board_id = ((board_id4 << 4) | (board_id3 << 3) |
123 (board_id2 << 2) | (board_id1 << 1) | (board_id0));
125 /* Setup the mux for the Ax specific board ID pins (gpio 101) */
126 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
129 board_id1 = gpio_get_value(PANDA_BOARD_ID_1_GPIO);
130 board_id = ((board_id2 << 2) | (board_id1 << 1) | (board_id0));
132 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
133 if ((board_id >= 0x3) && (processor_rev == OMAP4430_ES2_3))
134 setenv("board_name", strcat(CONFIG_SYS_BOARD, "-a4"));
142 * @brief misc_init_r - Configure Panda board specific configurations
143 * such as power configurations, ethernet initialization as phase2 of
148 int misc_init_r(void)
151 u32 auxclk, altclksrc;
153 /* EHCI is not supported on ES1.0 */
154 if (omap_revision() == OMAP4430_ES1_0)
157 get_board_revision();
159 gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO);
160 phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
163 /* ULPI PHY supplied by auxclk3 derived from sys_clk */
164 debug("ULPI PHY supplied by auxclk3\n");
166 auxclk = readl(&scrm->auxclk3);
168 auxclk &= ~AUXCLK_SRCSELECT_MASK;
169 auxclk |= AUXCLK_SRCSELECT_SYS_CLK << AUXCLK_SRCSELECT_SHIFT;
170 /* Set the divisor to 2 */
171 auxclk &= ~AUXCLK_CLKDIV_MASK;
172 auxclk |= AUXCLK_CLKDIV_2 << AUXCLK_CLKDIV_SHIFT;
173 /* Request auxilary clock #3 */
174 auxclk |= AUXCLK_ENABLE_MASK;
176 writel(auxclk, &scrm->auxclk3);
178 /* ULPI PHY supplied by auxclk1 derived from PER dpll */
179 debug("ULPI PHY supplied by auxclk1\n");
181 auxclk = readl(&scrm->auxclk1);
182 /* Select per DPLL */
183 auxclk &= ~AUXCLK_SRCSELECT_MASK;
184 auxclk |= AUXCLK_SRCSELECT_PER_DPLL << AUXCLK_SRCSELECT_SHIFT;
185 /* Set the divisor to 16 */
186 auxclk &= ~AUXCLK_CLKDIV_MASK;
187 auxclk |= AUXCLK_CLKDIV_16 << AUXCLK_CLKDIV_SHIFT;
188 /* Request auxilary clock #3 */
189 auxclk |= AUXCLK_ENABLE_MASK;
191 writel(auxclk, &scrm->auxclk1);
194 altclksrc = readl(&scrm->altclksrc);
196 /* Activate alternate system clock supplier */
197 altclksrc &= ~ALTCLKSRC_MODE_MASK;
198 altclksrc |= ALTCLKSRC_MODE_ACTIVE;
201 altclksrc |= ALTCLKSRC_ENABLE_INT_MASK | ALTCLKSRC_ENABLE_EXT_MASK;
203 writel(altclksrc, &scrm->altclksrc);
208 void set_muxconf_regs_essential(void)
210 do_set_mux((*ctrl)->control_padconf_core_base,
211 core_padconf_array_essential,
212 sizeof(core_padconf_array_essential) /
213 sizeof(struct pad_conf_entry));
215 do_set_mux((*ctrl)->control_padconf_wkup_base,
216 wkup_padconf_array_essential,
217 sizeof(wkup_padconf_array_essential) /
218 sizeof(struct pad_conf_entry));
220 if (omap_revision() >= OMAP4460_ES1_0)
221 do_set_mux((*ctrl)->control_padconf_wkup_base,
222 wkup_padconf_array_essential_4460,
223 sizeof(wkup_padconf_array_essential_4460) /
224 sizeof(struct pad_conf_entry));
227 void set_muxconf_regs_non_essential(void)
229 do_set_mux((*ctrl)->control_padconf_core_base,
230 core_padconf_array_non_essential,
231 sizeof(core_padconf_array_non_essential) /
232 sizeof(struct pad_conf_entry));
234 if (omap_revision() < OMAP4460_ES1_0)
235 do_set_mux((*ctrl)->control_padconf_core_base,
236 core_padconf_array_non_essential_4430,
237 sizeof(core_padconf_array_non_essential_4430) /
238 sizeof(struct pad_conf_entry));
240 do_set_mux((*ctrl)->control_padconf_core_base,
241 core_padconf_array_non_essential_4460,
242 sizeof(core_padconf_array_non_essential_4460) /
243 sizeof(struct pad_conf_entry));
245 do_set_mux((*ctrl)->control_padconf_wkup_base,
246 wkup_padconf_array_non_essential,
247 sizeof(wkup_padconf_array_non_essential) /
248 sizeof(struct pad_conf_entry));
250 if (omap_revision() < OMAP4460_ES1_0)
251 do_set_mux((*ctrl)->control_padconf_wkup_base,
252 wkup_padconf_array_non_essential_4430,
253 sizeof(wkup_padconf_array_non_essential_4430) /
254 sizeof(struct pad_conf_entry));
257 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
258 int board_mmc_init(bd_t *bis)
260 return omap_mmc_init(0, 0, 0, -1, -1);
264 #ifdef CONFIG_USB_EHCI
266 static struct omap_usbhs_board_data usbhs_bdata = {
267 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
268 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
269 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
272 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
275 unsigned int utmi_clk;
277 /* Now we can enable our port clocks */
278 utmi_clk = readl((void *)CM_L3INIT_HSUSBHOST_CLKCTRL);
279 utmi_clk |= HSUSBHOST_CLKCTRL_CLKSEL_UTMI_P1_MASK;
280 sr32((void *)CM_L3INIT_HSUSBHOST_CLKCTRL, 0, 32, utmi_clk);
282 ret = omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor);
289 int ehci_hcd_stop(int index)
291 return omap_ehci_hcd_stop();
296 * get_board_rev() - get board revision
298 u32 get_board_rev(void)