mx23evk: Add initial board support
The following features are supported:
* 128 MB DDR1 SDRAM
* DUART
* SD/MMC Card Socket
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/board/freescale/mx23evk/Makefile b/board/freescale/mx23evk/Makefile
new file mode 100644
index 0000000..7518d7b
--- /dev/null
+++ b/board/freescale/mx23evk/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2000-2006
+# 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
+
+ifndef CONFIG_SPL_BUILD
+COBJS := mx23evk.o
+else
+COBJS := spl_boot.o
+endif
+
+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/freescale/mx23evk/mx23evk.c b/board/freescale/mx23evk/mx23evk.c
new file mode 100644
index 0000000..41ba303
--- /dev/null
+++ b/board/freescale/mx23evk/mx23evk.c
@@ -0,0 +1,83 @@
+/*
+ * Freescale MX23EVK board
+ *
+ * (C) Copyright 2013 O.S. Systems Software LTDA.
+ *
+ * Author: Otavio Salvador <otavio@ossystems.com.br>
+ *
+ * Based on m28evk.c:
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <asm/gpio.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/iomux-mx23.h>
+#include <asm/arch/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Functions
+ */
+int board_early_init_f(void)
+{
+ /* IO0 clock at 480MHz */
+ mxs_set_ioclk(MXC_IOCLK0, 480000);
+
+ /* SSP0 clock at 96MHz */
+ mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ return mxs_dram_init();
+}
+
+int board_init(void)
+{
+ /* Adress of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ return 0;
+}
+
+#ifdef CONFIG_CMD_MMC
+static int mx23evk_mmc_wp(int id)
+{
+ if (id != 0) {
+ printf("MXS MMC: Invalid card selected (card id = %d)\n", id);
+ return 1;
+ }
+
+ return gpio_get_value(MX23_PAD_PWM4__GPIO_1_30);
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ /* Configure WP as input */
+ gpio_direction_input(MX23_PAD_PWM4__GPIO_1_30);
+
+ /* Configure MMC0 Power Enable */
+ gpio_direction_output(MX23_PAD_PWM3__GPIO_1_29, 0);
+
+ return mxsmmc_initialize(bis, 0, mx23evk_mmc_wp, NULL);
+}
+#endif
diff --git a/board/freescale/mx23evk/spl_boot.c b/board/freescale/mx23evk/spl_boot.c
new file mode 100644
index 0000000..6007433
--- /dev/null
+++ b/board/freescale/mx23evk/spl_boot.c
@@ -0,0 +1,104 @@
+/*
+ * Freescale MX23EVK Boot setup
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/io.h>
+#include <asm/arch/iomux-mx23.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/sys_proto.h>
+
+#define MUX_CONFIG_SSP1 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
+#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_16MA | MXS_PAD_PULLUP)
+
+const iomux_cfg_t iomux_setup[] = {
+ /* DUART */
+ MX23_PAD_PWM0__DUART_RX,
+ MX23_PAD_PWM1__DUART_TX,
+
+ /* EMI */
+ MX23_PAD_EMI_D00__EMI_D00 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D01__EMI_D01 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D02__EMI_D02 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D03__EMI_D03 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D04__EMI_D04 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D05__EMI_D05 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D06__EMI_D06 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D07__EMI_D07 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D08__EMI_D08 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D09__EMI_D09 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D10__EMI_D10 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D11__EMI_D11 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D12__EMI_D12 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D13__EMI_D13 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D14__EMI_D14 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_D15__EMI_D15 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_CLKN__EMI_CLKN | MUX_CONFIG_EMI,
+
+ MX23_PAD_EMI_A00__EMI_A00 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A01__EMI_A01 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A02__EMI_A02 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A03__EMI_A03 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A04__EMI_A04 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A05__EMI_A05 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A06__EMI_A06 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A07__EMI_A07 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A08__EMI_A08 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A09__EMI_A09 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A10__EMI_A10 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A11__EMI_A11 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_A12__EMI_A12 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
+
+ MX23_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
+ MX23_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
+
+ /* MMC 0 */
+ MX23_PAD_SSP1_DATA0__SSP1_DATA0 | MUX_CONFIG_SSP1,
+ MX23_PAD_SSP1_DATA1__SSP1_DATA1 | MUX_CONFIG_SSP1,
+ MX23_PAD_SSP1_DATA2__SSP1_DATA2 | MUX_CONFIG_SSP1,
+ MX23_PAD_SSP1_DATA3__SSP1_DATA3 | MUX_CONFIG_SSP1,
+ MX23_PAD_SSP1_CMD__SSP1_CMD | MUX_CONFIG_SSP1,
+ MX23_PAD_SSP1_DETECT__SSP1_DETECT | MUX_CONFIG_SSP1,
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+ MX23_PAD_SSP1_SCK__SSP1_SCK |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+ /* Write Protect Pin */
+ MX23_PAD_PWM4__GPIO_1_30 |
+ (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+ /* Slot Power Enable */
+ MX23_PAD_PWM3__GPIO_1_29 |
+ (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+};
+
+void board_init_ll(void)
+{
+ mxs_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
+}