* Texas Instruments Incorporated, <www.ti.com>
* Steve Sakoman <steve@sakoman.com>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
-#include <asm/arch/clocks.h>
+#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/gpio.h>
#endif
#define PANDA_ULPI_PHY_TYPE_GPIO 182
+#define PANDA_BOARD_ID_1_GPIO 101
+#define PANDA_ES_BOARD_ID_1_GPIO 48
+#define PANDA_BOARD_ID_2_GPIO 171
+#define PANDA_ES_BOARD_ID_3_GPIO 3
+#define PANDA_ES_BOARD_ID_4_GPIO 2
DECLARE_GLOBAL_DATA_PTR;
return 0;
}
+/*
+* Routine: get_board_revision
+* Description: Detect if we are running on a panda revision A1-A6,
+* or an ES panda board. This can be done by reading
+* the level of GPIOs and checking the processor revisions.
+* This should result in:
+* Panda 4430:
+* GPIO171, GPIO101, GPIO182: 0 1 1 => A1-A5
+* GPIO171, GPIO101, GPIO182: 1 0 1 => A6
+* Panda ES:
+* GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 0 1 1 => B1/B2
+* GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 1 1 1 => B3
+*/
+int get_board_revision(void)
+{
+ int board_id0, board_id1, board_id2;
+ int board_id3, board_id4;
+ int board_id;
+
+ int processor_rev = omap_revision();
+
+ /* Setup the mux for the common board ID pins (gpio 171 and 182) */
+ writew((IEN | M3), (*ctrl)->control_padconf_core_base + UNIPRO_TX0);
+ writew((IEN | M3), (*ctrl)->control_padconf_core_base + FREF_CLK2_OUT);
+
+ board_id0 = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
+ board_id2 = gpio_get_value(PANDA_BOARD_ID_2_GPIO);
+
+ if ((processor_rev >= OMAP4460_ES1_0 &&
+ processor_rev <= OMAP4460_ES1_1)) {
+ /*
+ * Setup the mux for the ES specific board ID pins (gpio 101,
+ * 2 and 3.
+ */
+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
+ GPMC_A24);
+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
+ UNIPRO_RY0);
+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
+ UNIPRO_RX1);
+
+ board_id1 = gpio_get_value(PANDA_ES_BOARD_ID_1_GPIO);
+ board_id3 = gpio_get_value(PANDA_ES_BOARD_ID_3_GPIO);
+ board_id4 = gpio_get_value(PANDA_ES_BOARD_ID_4_GPIO);
+
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+ setenv("board_name", strcat(CONFIG_SYS_BOARD, "-es"));
+#endif
+ board_id = ((board_id4 << 4) | (board_id3 << 3) |
+ (board_id2 << 2) | (board_id1 << 1) | (board_id0));
+ } else {
+ /* Setup the mux for the Ax specific board ID pins (gpio 101) */
+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
+ FREF_CLK2_OUT);
+
+ board_id1 = gpio_get_value(PANDA_BOARD_ID_1_GPIO);
+ board_id = ((board_id2 << 2) | (board_id1 << 1) | (board_id0));
+
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+ if ((board_id >= 0x3) && (processor_rev == OMAP4430_ES2_3))
+ setenv("board_name", strcat(CONFIG_SYS_BOARD, "-a4"));
+#endif
+ }
+
+ return board_id;
+}
+
/**
* @brief misc_init_r - Configure Panda board specific configurations
* such as power configurations, ethernet initialization as phase2 of
if (omap_revision() == OMAP4430_ES1_0)
return 0;
+ get_board_revision();
+
gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO);
phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
auxclk |= AUXCLK_ENABLE_MASK;
writel(auxclk, &scrm->auxclk3);
- } else {
+ } else {
/* ULPI PHY supplied by auxclk1 derived from PER dpll */
debug("ULPI PHY supplied by auxclk1\n");
void set_muxconf_regs_essential(void)
{
- do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential,
+ do_set_mux((*ctrl)->control_padconf_core_base,
+ core_padconf_array_essential,
sizeof(core_padconf_array_essential) /
sizeof(struct pad_conf_entry));
- do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential,
+ do_set_mux((*ctrl)->control_padconf_wkup_base,
+ wkup_padconf_array_essential,
sizeof(wkup_padconf_array_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() >= OMAP4460_ES1_0)
- do_set_mux(CONTROL_PADCONF_WKUP,
- wkup_padconf_array_essential_4460,
- sizeof(wkup_padconf_array_essential_4460) /
- sizeof(struct pad_conf_entry));
+ do_set_mux((*ctrl)->control_padconf_wkup_base,
+ wkup_padconf_array_essential_4460,
+ sizeof(wkup_padconf_array_essential_4460) /
+ sizeof(struct pad_conf_entry));
}
void set_muxconf_regs_non_essential(void)
{
- do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential,
+ do_set_mux((*ctrl)->control_padconf_core_base,
+ core_padconf_array_non_essential,
sizeof(core_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() < OMAP4460_ES1_0)
- do_set_mux(CONTROL_PADCONF_CORE,
- core_padconf_array_non_essential_4430,
- sizeof(core_padconf_array_non_essential_4430) /
- sizeof(struct pad_conf_entry));
+ do_set_mux((*ctrl)->control_padconf_core_base,
+ core_padconf_array_non_essential_4430,
+ sizeof(core_padconf_array_non_essential_4430) /
+ sizeof(struct pad_conf_entry));
else
- do_set_mux(CONTROL_PADCONF_CORE,
- core_padconf_array_non_essential_4460,
- sizeof(core_padconf_array_non_essential_4460) /
- sizeof(struct pad_conf_entry));
+ do_set_mux((*ctrl)->control_padconf_core_base,
+ core_padconf_array_non_essential_4460,
+ sizeof(core_padconf_array_non_essential_4460) /
+ sizeof(struct pad_conf_entry));
- do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_non_essential,
+ do_set_mux((*ctrl)->control_padconf_wkup_base,
+ wkup_padconf_array_non_essential,
sizeof(wkup_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() < OMAP4460_ES1_0)
- do_set_mux(CONTROL_PADCONF_WKUP,
- wkup_padconf_array_non_essential_4430,
- sizeof(wkup_padconf_array_non_essential_4430) /
- sizeof(struct pad_conf_entry));
+ do_set_mux((*ctrl)->control_padconf_wkup_base,
+ wkup_padconf_array_non_essential_4430,
+ sizeof(wkup_padconf_array_non_essential_4430) /
+ sizeof(struct pad_conf_entry));
}
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
projects / karo-tx-uboot.git / blobdiff