mx23evk: Add initial board support

[u-boot] / board / freescale / mx23evk / mx23evk.c

diff --git a/board/freescale/mx23evk/mx23evk.c b/board/freescale/mx23evk/mx23evk.c
new file mode 100644 (file)
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