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authorPeter Barada <peter.barada@logicpd.com>2011-12-19 19:54:51 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-01-16 08:40:10 +0100
commit86887f8ea189a6c23a1563e940957281374c9405 (patch)
treeee7b0cb21ffe7aaaa203181c8375222d76876be1 /board/logicpd/omap3som
parenta601bed0652de9e5f75e153bb511964b381895e5 (diff)
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ARMV7: Add support For Logic OMAP35x/DM37x modules
This patch adds basic support for OMAP35x/DM37x SOM LV/Torpedo reference boards. It assumes U-boot is loaded to SDRAM with the help of another small bootloader (x-load) running from SRAM. Signed-off-by: Peter Barada <peter.barada@logicpd.com> Cc: Tom Rini <tom.rini@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: Wolfgang Denk <wd@denx.de> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Diffstat (limited to 'board/logicpd/omap3som')
-rw-r--r--board/logicpd/omap3som/Makefile42
-rw-r--r--board/logicpd/omap3som/omap3logic.c247
-rw-r--r--board/logicpd/omap3som/omap3logic.h47
3 files changed, 336 insertions, 0 deletions
diff --git a/board/logicpd/omap3som/Makefile b/board/logicpd/omap3som/Makefile
new file mode 100644
index 0000000..75e237b
--- /dev/null
+++ b/board/logicpd/omap3som/Makefile
@@ -0,0 +1,42 @@
+#
+# (C) Copyright 2000, 2001, 2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).o
+
+COBJS-y := omap3logic.o
+
+COBJS := $(sort $(COBJS-y))
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
diff --git a/board/logicpd/omap3som/omap3logic.c b/board/logicpd/omap3som/omap3logic.c
new file mode 100644
index 0000000..4f5fa8d
--- /dev/null
+++ b/board/logicpd/omap3som/omap3logic.c
@@ -0,0 +1,247 @@
+/*
+ * (C) Copyright 2011
+ * Logic Product Development <www.logicpd.com>
+ *
+ * Author :
+ * Peter Barada <peter.barada@logicpd.com>
+ *
+ * Derived from Beagle Board and 3430 SDP code by
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Syed Mohammed Khasim <khasim@ti.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
+ */
+#include <common.h>
+#include <netdev.h>
+#include <flash.h>
+#include <nand.h>
+#include <i2c.h>
+#include <twl4030.h>
+#include <asm/io.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/mach-types.h>
+#include "omap3logic.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * two dimensional array of strucures containining board name and Linux
+ * machine IDs; row it selected based on CPU column is slected based
+ * on hsusb0_data5 pin having a pulldown resistor
+ */
+static struct board_id {
+ char *name;
+ int machine_id;
+} boards[2][2] = {
+ {
+ {
+ .name = "OMAP35xx SOM LV",
+ .machine_id = MACH_TYPE_OMAP3530_LV_SOM,
+ },
+ {
+ .name = "OMAP35xx Torpedo",
+ .machine_id = MACH_TYPE_OMAP3_TORPEDO,
+ },
+ },
+ {
+ {
+ .name = "DM37xx SOM LV",
+ .machine_id = MACH_TYPE_DM3730_SOM_LV,
+ },
+ {
+ .name = "DM37xx Torpedo",
+ .machine_id = MACH_TYPE_DM3730_TORPEDO,
+ },
+ },
+};
+
+/*
+ * BOARD_ID_GPIO - GPIO of pin with optional pulldown resistor on SOM LV
+ */
+#define BOARD_ID_GPIO 189 /* hsusb0_data5 pin */
+
+/*
+ * Routine: board_init
+ * Description: Early hardware init.
+ */
+int board_init(void)
+{
+ struct board_id *board;
+ unsigned int val;
+
+ gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
+
+ /* boot param addr */
+ gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
+
+ /*
+ * To identify between a SOM LV and Torpedo module,
+ * a pulldown resistor is on hsusb0_data5 for the SOM LV module.
+ * Drive the pin (and let it soak), then read it back.
+ * If the pin is still high its a Torpedo. If low its a SOM LV
+ */
+
+ /* Mux hsusb0_data5 as a GPIO */
+ MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M4));
+
+ if (gpio_request(BOARD_ID_GPIO, "husb0_data5.gpio_189") == 0) {
+
+ /*
+ * Drive BOARD_ID_GPIO - the pulldown resistor on the SOM LV
+ * will drain the voltage.
+ */
+ gpio_direction_output(BOARD_ID_GPIO, 0);
+ gpio_set_value(BOARD_ID_GPIO, 1);
+
+ /* Let it soak for a bit */
+ sdelay(0x100);
+
+ /*
+ * Read state of BOARD_ID_GPIO as an input and if its set.
+ * If so the board is a Torpedo
+ */
+ gpio_direction_input(BOARD_ID_GPIO);
+ val = gpio_get_value(BOARD_ID_GPIO);
+ gpio_free(BOARD_ID_GPIO);
+
+ board = &boards[!!(get_cpu_family() == CPU_OMAP36XX)][!!val];
+ printf("Board: %s\n", board->name);
+
+ /* Set the machine_id passed to Linux */
+ gd->bd->bi_arch_number = board->machine_id;
+ }
+
+ /* restore hsusb0_data5 pin as hsusb0_data5 */
+ MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M0));
+
+ return 0;
+}
+
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
+int board_mmc_init(bd_t *bis)
+{
+ return omap_mmc_init(0);
+}
+#endif
+
+/*
+ * Routine: misc_init_r
+ * Description: display die ID register
+ */
+int misc_init_r(void)
+{
+ dieid_num_r();
+
+ return 0;
+}
+
+#ifdef CONFIG_SMC911X
+/* GPMC CS1 settings for Logic SOM LV/Torpedo LAN92xx Ethernet chip */
+static const u32 gpmc_lan92xx_config[] = {
+ NET_LAN92XX_GPMC_CONFIG1,
+ NET_LAN92XX_GPMC_CONFIG2,
+ NET_LAN92XX_GPMC_CONFIG3,
+ NET_LAN92XX_GPMC_CONFIG4,
+ NET_LAN92XX_GPMC_CONFIG5,
+ NET_LAN92XX_GPMC_CONFIG6,
+};
+
+int board_eth_init(bd_t *bis)
+{
+ enable_gpmc_cs_config(gpmc_lan92xx_config, &gpmc_cfg->cs[1],
+ CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
+
+ return smc911x_initialize(0, CONFIG_SMC911X_BASE);
+}
+#endif
+
+/*
+ * IEN - Input Enable
+ * IDIS - Input Disable
+ * PTD - Pull type Down
+ * PTU - Pull type Up
+ * DIS - Pull type selection is inactive
+ * EN - Pull type selection is active
+ * M0 - Mode 0
+ * The commented string gives the final mux configuration for that pin
+ */
+
+/*
+ * Routine: set_muxconf_regs
+ * Description: Setting up the configuration Mux registers specific to the
+ * hardware. Many pins need to be moved from protect to primary
+ * mode.
+ */
+void set_muxconf_regs(void)
+{
+ /*GPMC*/
+ MUX_VAL(CP(GPMC_A1), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A2), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A3), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A4), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A5), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D8), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D9), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D10), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D11), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D12), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D13), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D14), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D15), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_NCS0), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_NCS3), (IDIS | PTD | DIS | M0));
+ MUX_VAL(CP(GPMC_NCS5), (IDIS | PTU | DIS | M4));
+ MUX_VAL(CP(GPMC_NCS7), (IDIS | PTD | DIS | M1)); /*GPMC_IO_DIR*/
+ MUX_VAL(CP(GPMC_NBE0_CLE), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_WAIT1), (IEN | PTU | EN | M0));
+
+ /*Expansion card */
+ MUX_VAL(CP(MMC1_CLK), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_CMD), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT0), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT1), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT2), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT3), (IEN | PTU | EN | M0));
+
+ /* Serial Console */
+ MUX_VAL(CP(UART1_TX), (IDIS | PTD | DIS | M0));
+ MUX_VAL(CP(UART1_RTS), (IDIS | PTD | DIS | M0));
+ MUX_VAL(CP(UART1_CTS), (IEN | PTU | DIS | M0));
+ MUX_VAL(CP(UART1_RX), (IEN | PTD | DIS | M0));
+
+ /* I2C */
+ MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(I2C3_SCL), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(I2C3_SDA), (IEN | PTU | EN | M0));
+
+ MUX_VAL(CP(HDQ_SIO), (IEN | PTU | EN | M0));
+
+ /*Control and debug */
+ MUX_VAL(CP(SYS_NIRQ), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(SYS_OFF_MODE), (IEN | PTD | DIS | M0));
+ MUX_VAL(CP(SYS_CLKOUT1), (IEN | PTD | DIS | M0));
+ MUX_VAL(CP(SYS_CLKOUT2), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(JTAG_nTRST), (IEN | PTD | DIS | M0));
+ MUX_VAL(CP(SDRC_CKE0), (IDIS | PTU | EN | M0));
+}
diff --git a/board/logicpd/omap3som/omap3logic.h b/board/logicpd/omap3som/omap3logic.h
new file mode 100644
index 0000000..94f6b2e
--- /dev/null
+++ b/board/logicpd/omap3som/omap3logic.h
@@ -0,0 +1,47 @@
+/*
+ * (C) Copyright 2011
+ * Logic Product Development <www.logicpd.com>
+ *
+ * Author:
+ * Peter Barada <peter.barada@logicpd.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
+ */
+#ifndef _OMAP3LOGIC_H_
+#define _OMAP3LOGIC_H_
+
+/*
+ * OMAP3 GPMC register settings for CS1 LAN922x
+ */
+#define NET_LAN92XX_GPMC_CONFIG1 0x00001000
+#define NET_LAN92XX_GPMC_CONFIG2 0x00080801
+#define NET_LAN92XX_GPMC_CONFIG3 0x00000000
+#define NET_LAN92XX_GPMC_CONFIG4 0x08010801
+#define NET_LAN92XX_GPMC_CONFIG5 0x00080a0a
+#define NET_LAN92XX_GPMC_CONFIG6 0x03000280
+
+
+const omap3_sysinfo sysinfo = {
+ DDR_DISCRETE,
+ "Logic DM37x/OMAP35x reference board",
+ "NAND",
+};
+
+
+#endif