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authorJuergen Beisert <j.beisert@pengutronix.de>2008-07-05 10:03:00 +0200
committerRobert Schwebel <r.schwebel@pengutronix.de>2008-07-05 10:03:00 +0200
commit80eedae6f0322dafc749140b67986b2472473745 (patch)
tree23c6782e6387b01303855ea2febc819145fca798 /arch/arm/mach-mx2
parentc46f5856517c2d4f438df87dac81f2295931ee93 (diff)
downloadop-kernel-dev-80eedae6f0322dafc749140b67986b2472473745.zip
op-kernel-dev-80eedae6f0322dafc749140b67986b2472473745.tar.gz
i.MX27: Add ADS platform support
This patch adds basic support for the Freescale MX27ADS reference board. Currently only a serial console can be used. Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx2')
-rw-r--r--arch/arm/mach-mx2/Kconfig7
-rw-r--r--arch/arm/mach-mx2/Makefile2
-rw-r--r--arch/arm/mach-mx2/mx27ads.c304
3 files changed, 313 insertions, 0 deletions
diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig
index 6e7d724..6f98355 100644
--- a/arch/arm/mach-mx2/Kconfig
+++ b/arch/arm/mach-mx2/Kconfig
@@ -9,3 +9,10 @@ config MACH_MX27
comment "MX2 Platforms"
depends on ARCH_MX2
+
+config MACH_MX27ADS
+ bool "MX27ADS platform"
+ depends on MACH_MX27
+ help
+ Include support for MX27ADS platform. This includes specific
+ configurations for the board and its peripherals.
diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile
index 74fb9b3..f6764eb 100644
--- a/arch/arm/mach-mx2/Makefile
+++ b/arch/arm/mach-mx2/Makefile
@@ -8,3 +8,5 @@ obj-y := system.o generic.o devices.o serial.o
obj-$(CONFIG_MACH_MX27) += cpu_imx27.o
obj-$(CONFIG_MACH_MX27) += clock_imx27.o
+
+obj-$(CONFIG_MACH_MX27ADS) += mx27ads.o
diff --git a/arch/arm/mach-mx2/mx27ads.c b/arch/arm/mach-mx2/mx27ads.c
new file mode 100644
index 0000000..a9ff01f
--- /dev/null
+++ b/arch/arm/mach-mx2/mx27ads.c
@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2000 Deep Blue Solutions Ltd
+ * Copyright (C) 2002 Shane Nay (shane@minirl.com)
+ * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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 <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <asm/arch/common.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/imx-uart.h>
+#include <asm/arch/iomux-mx1-mx2.h>
+#include <asm/arch/board-mx27ads.h>
+
+/* ADS's NOR flash */
+static struct physmap_flash_data mx27ads_flash_data = {
+ .width = 2,
+};
+
+static struct resource mx27ads_flash_resource = {
+ .start = 0xc0000000,
+ .end = 0xc0000000 + 0x02000000 - 1,
+ .flags = IORESOURCE_MEM,
+
+};
+
+static struct platform_device mx27ads_nor_mtd_device = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &mx27ads_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &mx27ads_flash_resource,
+};
+
+static int mxc_uart0_pins[] = {
+ PE12_PF_UART1_TXD,
+ PE13_PF_UART1_RXD,
+ PE14_PF_UART1_CTS,
+ PE15_PF_UART1_RTS
+};
+
+static int uart_mxc_port0_init(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
+ ARRAY_SIZE(mxc_uart0_pins),
+ MXC_GPIO_ALLOC_MODE_NORMAL, "UART0");
+}
+
+static int uart_mxc_port0_exit(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
+ ARRAY_SIZE(mxc_uart0_pins),
+ MXC_GPIO_ALLOC_MODE_RELEASE, "UART0");
+}
+
+static int mxc_uart1_pins[] = {
+ PE3_PF_UART2_CTS,
+ PE4_PF_UART2_RTS,
+ PE6_PF_UART2_TXD,
+ PE7_PF_UART2_RXD
+};
+
+static int uart_mxc_port1_init(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
+ ARRAY_SIZE(mxc_uart1_pins),
+ MXC_GPIO_ALLOC_MODE_NORMAL, "UART1");
+}
+
+static int uart_mxc_port1_exit(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
+ ARRAY_SIZE(mxc_uart1_pins),
+ MXC_GPIO_ALLOC_MODE_RELEASE, "UART1");
+}
+
+static int mxc_uart2_pins[] = {
+ PE8_PF_UART3_TXD,
+ PE9_PF_UART3_RXD,
+ PE10_PF_UART3_CTS,
+ PE11_PF_UART3_RTS
+};
+
+static int uart_mxc_port2_init(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
+ ARRAY_SIZE(mxc_uart2_pins),
+ MXC_GPIO_ALLOC_MODE_NORMAL, "UART2");
+}
+
+static int uart_mxc_port2_exit(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
+ ARRAY_SIZE(mxc_uart2_pins),
+ MXC_GPIO_ALLOC_MODE_RELEASE, "UART2");
+}
+
+static int mxc_uart3_pins[] = {
+ PB26_AF_UART4_RTS,
+ PB28_AF_UART4_TXD,
+ PB29_AF_UART4_CTS,
+ PB31_AF_UART4_RXD
+};
+
+static int uart_mxc_port3_init(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart3_pins,
+ ARRAY_SIZE(mxc_uart3_pins),
+ MXC_GPIO_ALLOC_MODE_NORMAL, "UART3");
+}
+
+static int uart_mxc_port3_exit(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart3_pins,
+ ARRAY_SIZE(mxc_uart3_pins),
+ MXC_GPIO_ALLOC_MODE_RELEASE, "UART3");
+}
+
+static int mxc_uart4_pins[] = {
+ PB18_AF_UART5_TXD,
+ PB19_AF_UART5_RXD,
+ PB20_AF_UART5_CTS,
+ PB21_AF_UART5_RTS
+};
+
+static int uart_mxc_port4_init(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart4_pins,
+ ARRAY_SIZE(mxc_uart4_pins),
+ MXC_GPIO_ALLOC_MODE_NORMAL, "UART4");
+}
+
+static int uart_mxc_port4_exit(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart4_pins,
+ ARRAY_SIZE(mxc_uart4_pins),
+ MXC_GPIO_ALLOC_MODE_RELEASE, "UART4");
+}
+
+static int mxc_uart5_pins[] = {
+ PB10_AF_UART6_TXD,
+ PB12_AF_UART6_CTS,
+ PB11_AF_UART6_RXD,
+ PB13_AF_UART6_RTS
+};
+
+static int uart_mxc_port5_init(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart5_pins,
+ ARRAY_SIZE(mxc_uart5_pins),
+ MXC_GPIO_ALLOC_MODE_NORMAL, "UART5");
+}
+
+static int uart_mxc_port5_exit(struct platform_device *pdev)
+{
+ return mxc_gpio_setup_multiple_pins(mxc_uart5_pins,
+ ARRAY_SIZE(mxc_uart5_pins),
+ MXC_GPIO_ALLOC_MODE_RELEASE, "UART5");
+}
+
+static struct platform_device *platform_devices[] __initdata = {
+ &mx27ads_nor_mtd_device,
+};
+
+static int mxc_fec_pins[] = {
+ PD0_AIN_FEC_TXD0,
+ PD1_AIN_FEC_TXD1,
+ PD2_AIN_FEC_TXD2,
+ PD3_AIN_FEC_TXD3,
+ PD4_AOUT_FEC_RX_ER,
+ PD5_AOUT_FEC_RXD1,
+ PD6_AOUT_FEC_RXD2,
+ PD7_AOUT_FEC_RXD3,
+ PD8_AF_FEC_MDIO,
+ PD9_AIN_FEC_MDC,
+ PD10_AOUT_FEC_CRS,
+ PD11_AOUT_FEC_TX_CLK,
+ PD12_AOUT_FEC_RXD0,
+ PD13_AOUT_FEC_RX_DV,
+ PD14_AOUT_FEC_CLR,
+ PD15_AOUT_FEC_COL,
+ PD16_AIN_FEC_TX_ER,
+ PF23_AIN_FEC_TX_EN
+};
+
+static void gpio_fec_active(void)
+{
+ mxc_gpio_setup_multiple_pins(mxc_fec_pins,
+ ARRAY_SIZE(mxc_fec_pins),
+ MXC_GPIO_ALLOC_MODE_NORMAL, "FEC");
+}
+
+static void gpio_fec_inactive(void)
+{
+ mxc_gpio_setup_multiple_pins(mxc_fec_pins,
+ ARRAY_SIZE(mxc_fec_pins),
+ MXC_GPIO_ALLOC_MODE_RELEASE, "FEC");
+}
+
+static struct imxuart_platform_data uart_pdata[] = {
+ {
+ .init = uart_mxc_port0_init,
+ .exit = uart_mxc_port0_exit,
+ .flags = IMXUART_HAVE_RTSCTS,
+ }, {
+ .init = uart_mxc_port1_init,
+ .exit = uart_mxc_port1_exit,
+ .flags = IMXUART_HAVE_RTSCTS,
+ }, {
+ .init = uart_mxc_port2_init,
+ .exit = uart_mxc_port2_exit,
+ .flags = IMXUART_HAVE_RTSCTS,
+ }, {
+ .init = uart_mxc_port3_init,
+ .exit = uart_mxc_port3_exit,
+ .flags = IMXUART_HAVE_RTSCTS,
+ }, {
+ .init = uart_mxc_port4_init,
+ .exit = uart_mxc_port4_exit,
+ .flags = IMXUART_HAVE_RTSCTS,
+ }, {
+ .init = uart_mxc_port5_init,
+ .exit = uart_mxc_port5_exit,
+ .flags = IMXUART_HAVE_RTSCTS,
+ },
+};
+
+static void __init mx27ads_board_init(void)
+{
+ int i;
+
+ gpio_fec_active();
+
+ for (i = 0; i < 6; i++)
+ imx_init_uart(i, &uart_pdata[i]);
+
+ platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+}
+
+static void __init mx27ads_timer_init(void)
+{
+ unsigned long fref = 26000000;
+
+ if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
+ fref = 27000000;
+
+ mxc_clocks_init(fref);
+ mxc_timer_init("gpt_clk.0");
+}
+
+struct sys_timer mx27ads_timer = {
+ .init = mx27ads_timer_init,
+};
+
+static struct map_desc mx27ads_io_desc[] __initdata = {
+ {
+ .virtual = PBC_BASE_ADDRESS,
+ .pfn = __phys_to_pfn(CS4_BASE_ADDR),
+ .length = SZ_1M,
+ .type = MT_DEVICE,
+ },
+};
+
+void __init mx27ads_map_io(void)
+{
+ mxc_map_io();
+ iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
+}
+
+MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
+ /* maintainer: Freescale Semiconductor, Inc. */
+ .phys_io = AIPI_BASE_ADDR,
+ .io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+ .boot_params = PHYS_OFFSET + 0x100,
+ .map_io = mx27ads_map_io,
+ .init_irq = mxc_init_irq,
+ .init_machine = mx27ads_board_init,
+ .timer = &mx27ads_timer,
+MACHINE_END
+
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