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Diffstat (limited to 'kernel/arch/arm/mach-imx/mm-imx21.c')
-rw-r--r--kernel/arch/arm/mach-imx/mm-imx21.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mm-imx21.c b/kernel/arch/arm/mach-imx/mm-imx21.c
new file mode 100644
index 000000000..2e91ab2ca
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/mm-imx21.c
@@ -0,0 +1,99 @@
+/*
+ * arch/arm/mach-imx/mm-imx21.c
+ *
+ * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/pinctrl/machine.h>
+#include <asm/pgtable.h>
+#include <asm/mach/map.h>
+
+#include "common.h"
+#include "devices/devices-common.h"
+#include "hardware.h"
+#include "iomux-v1.h"
+
+/* MX21 memory map definition */
+static struct map_desc imx21_io_desc[] __initdata = {
+ /*
+ * this fixed mapping covers:
+ * - AIPI1
+ * - AIPI2
+ * - AITC
+ * - ROM Patch
+ * - and some reserved space
+ */
+ imx_map_entry(MX21, AIPI, MT_DEVICE),
+ /*
+ * this fixed mapping covers:
+ * - CSI
+ * - ATA
+ */
+ imx_map_entry(MX21, SAHB1, MT_DEVICE),
+ /*
+ * this fixed mapping covers:
+ * - EMI
+ */
+ imx_map_entry(MX21, X_MEMC, MT_DEVICE),
+};
+
+/*
+ * Initialize the memory map. It is called during the
+ * system startup to create static physical to virtual
+ * memory map for the IO modules.
+ */
+void __init mx21_map_io(void)
+{
+ iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc));
+}
+
+void __init imx21_init_early(void)
+{
+ mxc_set_cpu_type(MXC_CPU_MX21);
+ imx_iomuxv1_init(MX21_IO_ADDRESS(MX21_GPIO_BASE_ADDR),
+ MX21_NUM_GPIO_PORT);
+}
+
+void __init mx21_init_irq(void)
+{
+ mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR));
+}
+
+static const struct resource imx21_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX21_AUDMUX_BASE_ADDR, SZ_4K),
+};
+
+void __init imx21_soc_init(void)
+{
+ mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR));
+ mxc_device_init();
+
+ mxc_register_gpio("imx21-gpio", 0, MX21_GPIO1_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
+ mxc_register_gpio("imx21-gpio", 1, MX21_GPIO2_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
+ mxc_register_gpio("imx21-gpio", 2, MX21_GPIO3_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
+ mxc_register_gpio("imx21-gpio", 3, MX21_GPIO4_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
+ mxc_register_gpio("imx21-gpio", 4, MX21_GPIO5_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
+ mxc_register_gpio("imx21-gpio", 5, MX21_GPIO6_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
+
+ pinctrl_provide_dummies();
+ imx_add_imx_dma("imx21-dma", MX21_DMA_BASE_ADDR,
+ MX21_INT_DMACH0, 0); /* No ERR irq */
+ platform_device_register_simple("imx21-audmux", 0, imx21_audmux_res,
+ ARRAY_SIZE(imx21_audmux_res));
+}