1 // SPDX-License-Identifier: GPL-2.0+
4 * Texas Instruments Incorporated, <www.ti.com>
12 #include <asm/global_data.h>
13 #include <asm/mach-types.h>
14 #include <asm/arch/sys_proto.h>
15 #include <asm/arch/mmc_host_def.h>
16 #include <asm/arch/clock.h>
17 #include <asm/arch/gpio.h>
22 #include "panda_mux_data.h"
24 #define PANDA_ULPI_PHY_TYPE_GPIO 182
25 #define PANDA_BOARD_ID_1_GPIO 101
26 #define PANDA_ES_BOARD_ID_1_GPIO 48
27 #define PANDA_BOARD_ID_2_GPIO 171
28 #define PANDA_ES_BOARD_ID_3_GPIO 3
29 #define PANDA_ES_BOARD_ID_4_GPIO 2
31 DECLARE_GLOBAL_DATA_PTR;
33 const struct omap_sysinfo sysinfo = {
34 "Board: OMAP4 Panda\n"
37 struct omap4_scrm_regs *const scrm = (struct omap4_scrm_regs *)0x4a30a000;
48 gd->bd->bi_arch_number = MACH_TYPE_OMAP4_PANDA;
49 gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
54 #if defined(CONFIG_SPL_OS_BOOT)
55 int spl_start_uboot(void)
57 /* break into full u-boot on 'c' */
58 if (serial_tstc() && serial_getc() == 'c')
63 #endif /* CONFIG_SPL_OS_BOOT */
65 int board_eth_init(struct bd_info *bis)
71 * Routine: get_board_revision
72 * Description: Detect if we are running on a panda revision A1-A6,
73 * or an ES panda board. This can be done by reading
74 * the level of GPIOs and checking the processor revisions.
75 * This should result in:
77 * GPIO171, GPIO101, GPIO182: 0 1 1 => A1-A5
78 * GPIO171, GPIO101, GPIO182: 1 0 1 => A6
80 * GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 0 1 1 => B1/B2
81 * GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 1 1 1 => B3
83 int get_board_revision(void)
85 int board_id0, board_id1, board_id2;
86 int board_id3, board_id4;
89 int processor_rev = omap_revision();
91 /* Setup the mux for the common board ID pins (gpio 171 and 182) */
92 writew((IEN | M3), (*ctrl)->control_padconf_core_base + UNIPRO_TX0);
93 writew((IEN | M3), (*ctrl)->control_padconf_core_base + FREF_CLK2_OUT);
95 board_id0 = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
96 board_id2 = gpio_get_value(PANDA_BOARD_ID_2_GPIO);
98 if ((processor_rev >= OMAP4460_ES1_0 &&
99 processor_rev <= OMAP4460_ES1_1)) {
101 * Setup the mux for the ES specific board ID pins (gpio 101,
104 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
106 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
108 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
111 board_id1 = gpio_get_value(PANDA_ES_BOARD_ID_1_GPIO);
112 board_id3 = gpio_get_value(PANDA_ES_BOARD_ID_3_GPIO);
113 board_id4 = gpio_get_value(PANDA_ES_BOARD_ID_4_GPIO);
115 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
116 env_set("board_name", "panda-es");
118 board_id = ((board_id4 << 4) | (board_id3 << 3) |
119 (board_id2 << 2) | (board_id1 << 1) | (board_id0));
121 /* Setup the mux for the Ax specific board ID pins (gpio 101) */
122 writew((IEN | M3), (*ctrl)->control_padconf_core_base +
125 board_id1 = gpio_get_value(PANDA_BOARD_ID_1_GPIO);
126 board_id = ((board_id2 << 2) | (board_id1 << 1) | (board_id0));
128 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
129 if ((board_id >= 0x3) && (processor_rev == OMAP4430_ES2_3))
130 env_set("board_name", "panda-a4");
138 * is_panda_es_rev_b3() - Detect if we are running on rev B3 of panda board ES
141 * Detect if we are running on B3 version of ES panda board,
142 * This can be done by reading the level of GPIO 171 and checking the
143 * processor revisions.
144 * GPIO171: 1 => Panda ES Rev B3
146 * Return : return 1 if Panda ES Rev B3 , else return 0
148 u8 is_panda_es_rev_b3(void)
150 int processor_rev = omap_revision();
153 if ((processor_rev >= OMAP4460_ES1_0 &&
154 processor_rev <= OMAP4460_ES1_1)) {
156 /* Setup the mux for the common board ID pins (gpio 171) */
158 (*ctrl)->control_padconf_core_base + UNIPRO_TX0);
160 /* if processor_rev is panda ES and GPIO171 is 1,it is rev b3 */
161 ret = gpio_get_value(PANDA_BOARD_ID_2_GPIO);
166 #ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
168 * emif_get_reg_dump() - emif_get_reg_dump strong function
170 * @emif_nr - emif base
171 * @regs - reg dump of timing values
173 * Strong function to override emif_get_reg_dump weak function in sdram_elpida.c
175 void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
177 u32 omap4_rev = omap_revision();
179 /* Same devices and geometry on both EMIFs */
180 if (omap4_rev == OMAP4430_ES1_0)
181 *regs = &emif_regs_elpida_380_mhz_1cs;
182 else if (omap4_rev == OMAP4430_ES2_0)
183 *regs = &emif_regs_elpida_200_mhz_2cs;
184 else if (omap4_rev == OMAP4430_ES2_3)
185 *regs = &emif_regs_elpida_400_mhz_1cs;
186 else if (omap4_rev < OMAP4470_ES1_0) {
187 if(is_panda_es_rev_b3())
188 *regs = &emif_regs_elpida_400_mhz_1cs;
190 *regs = &emif_regs_elpida_400_mhz_2cs;
193 *regs = &emif_regs_elpida_400_mhz_1cs;
196 void emif_get_dmm_regs(const struct dmm_lisa_map_regs
199 u32 omap_rev = omap_revision();
201 if (omap_rev == OMAP4430_ES1_0)
202 *dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
203 else if (omap_rev == OMAP4430_ES2_3)
204 *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
205 else if (omap_rev < OMAP4460_ES1_0)
206 *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
208 *dmm_lisa_regs = &ma_lisa_map_2G_x_2_x_2;
214 * @brief misc_init_r - Configure Panda board specific configurations
215 * such as power configurations, ethernet initialization as phase2 of
220 int misc_init_r(void)
223 u32 auxclk, altclksrc;
225 /* EHCI is not supported on ES1.0 */
226 if (omap_revision() == OMAP4430_ES1_0)
229 get_board_revision();
231 gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO);
232 phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
235 /* ULPI PHY supplied by auxclk3 derived from sys_clk */
236 debug("ULPI PHY supplied by auxclk3\n");
238 auxclk = readl(&scrm->auxclk3);
240 auxclk &= ~AUXCLK_SRCSELECT_MASK;
241 auxclk |= AUXCLK_SRCSELECT_SYS_CLK << AUXCLK_SRCSELECT_SHIFT;
242 /* Set the divisor to 2 */
243 auxclk &= ~AUXCLK_CLKDIV_MASK;
244 auxclk |= AUXCLK_CLKDIV_2 << AUXCLK_CLKDIV_SHIFT;
245 /* Request auxilary clock #3 */
246 auxclk |= AUXCLK_ENABLE_MASK;
248 writel(auxclk, &scrm->auxclk3);
250 /* ULPI PHY supplied by auxclk1 derived from PER dpll */
251 debug("ULPI PHY supplied by auxclk1\n");
253 auxclk = readl(&scrm->auxclk1);
254 /* Select per DPLL */
255 auxclk &= ~AUXCLK_SRCSELECT_MASK;
256 auxclk |= AUXCLK_SRCSELECT_PER_DPLL << AUXCLK_SRCSELECT_SHIFT;
257 /* Set the divisor to 16 */
258 auxclk &= ~AUXCLK_CLKDIV_MASK;
259 auxclk |= AUXCLK_CLKDIV_16 << AUXCLK_CLKDIV_SHIFT;
260 /* Request auxilary clock #3 */
261 auxclk |= AUXCLK_ENABLE_MASK;
263 writel(auxclk, &scrm->auxclk1);
266 altclksrc = readl(&scrm->altclksrc);
268 /* Activate alternate system clock supplier */
269 altclksrc &= ~ALTCLKSRC_MODE_MASK;
270 altclksrc |= ALTCLKSRC_MODE_ACTIVE;
273 altclksrc |= ALTCLKSRC_ENABLE_INT_MASK | ALTCLKSRC_ENABLE_EXT_MASK;
275 writel(altclksrc, &scrm->altclksrc);
277 omap_die_id_usbethaddr();
282 void set_muxconf_regs(void)
284 do_set_mux((*ctrl)->control_padconf_core_base,
285 core_padconf_array_essential,
286 sizeof(core_padconf_array_essential) /
287 sizeof(struct pad_conf_entry));
289 do_set_mux((*ctrl)->control_padconf_wkup_base,
290 wkup_padconf_array_essential,
291 sizeof(wkup_padconf_array_essential) /
292 sizeof(struct pad_conf_entry));
294 if (omap_revision() >= OMAP4460_ES1_0)
295 do_set_mux((*ctrl)->control_padconf_wkup_base,
296 wkup_padconf_array_essential_4460,
297 sizeof(wkup_padconf_array_essential_4460) /
298 sizeof(struct pad_conf_entry));
301 #if defined(CONFIG_MMC)
302 int board_mmc_init(struct bd_info *bis)
304 return omap_mmc_init(0, 0, 0, -1, -1);
307 #if !defined(CONFIG_SPL_BUILD)
308 void board_mmc_power_init(void)
310 twl6030_power_mmc_init(0);
315 #ifdef CONFIG_REVISION_TAG
317 * get_board_rev() - get board revision
319 u32 get_board_rev(void)