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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/mach-imx/mach-scb9328.c |
Initial import
Diffstat (limited to 'arch/arm/mach-imx/mach-scb9328.c')
-rw-r--r-- | arch/arm/mach-imx/mach-scb9328.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-scb9328.c b/arch/arm/mach-imx/mach-scb9328.c new file mode 100644 index 000000000..1f6bc3f7a --- /dev/null +++ b/arch/arm/mach-imx/mach-scb9328.c @@ -0,0 +1,143 @@ +/* + * linux/arch/arm/mach-mx1/mach-scb9328.c + * + * Copyright (c) 2004 Sascha Hauer <saschahauer@web.de> + * Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/platform_device.h> +#include <linux/mtd/physmap.h> +#include <linux/interrupt.h> +#include <linux/dm9000.h> +#include <linux/gpio.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> + +#include "common.h" +#include "devices-imx1.h" +#include "hardware.h" +#include "iomux-mx1.h" + +/* + * This scb9328 has a 32MiB flash + */ +static struct resource flash_resource = { + .start = MX1_CS0_PHYS, + .end = MX1_CS0_PHYS + (32 * 1024 * 1024) - 1, + .flags = IORESOURCE_MEM, +}; + +static struct physmap_flash_data scb_flash_data = { + .width = 2, +}; + +static struct platform_device scb_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &scb_flash_data, + }, + .resource = &flash_resource, + .num_resources = 1, +}; + +/* + * scb9328 has a DM9000 network controller + * connected to CS5, with 16 bit data path + * and interrupt connected to GPIO 3 + */ + +/* + * internal datapath is fixed 16 bit + */ +static struct dm9000_plat_data dm9000_platdata = { + .flags = DM9000_PLATF_16BITONLY, +}; + +/* + * the DM9000 drivers wants two defined address spaces + * to gain access to address latch registers and the data path. + */ +static struct resource dm9000x_resources[] = { + { + .name = "address area", + .start = MX1_CS5_PHYS, + .end = MX1_CS5_PHYS + 1, + .flags = IORESOURCE_MEM, /* address access */ + }, { + .name = "data area", + .start = MX1_CS5_PHYS + 4, + .end = MX1_CS5_PHYS + 5, + .flags = IORESOURCE_MEM, /* data access */ + }, { + /* irq number is run-time assigned */ + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + }, +}; + +static struct platform_device dm9000x_device = { + .name = "dm9000", + .id = 0, + .num_resources = ARRAY_SIZE(dm9000x_resources), + .resource = dm9000x_resources, + .dev = { + .platform_data = &dm9000_platdata, + } +}; + +static const int mxc_uart1_pins[] = { + PC9_PF_UART1_CTS, + PC10_PF_UART1_RTS, + PC11_PF_UART1_TXD, + PC12_PF_UART1_RXD, +}; + +static const struct imxuart_platform_data uart_pdata __initconst = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static struct platform_device *devices[] __initdata = { + &scb_flash_device, + &dm9000x_device, +}; + +/* + * scb9328_init - Init the CPU card itself + */ +static void __init scb9328_init(void) +{ + imx1_soc_init(); + + mxc_gpio_setup_multiple_pins(mxc_uart1_pins, + ARRAY_SIZE(mxc_uart1_pins), "UART1"); + + imx1_add_imx_uart0(&uart_pdata); + + printk(KERN_INFO"Scb9328: Adding devices\n"); + dm9000x_resources[2].start = gpio_to_irq(IMX_GPIO_NR(3, 3)); + dm9000x_resources[2].end = gpio_to_irq(IMX_GPIO_NR(3, 3)); + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +static void __init scb9328_timer_init(void) +{ + mx1_clocks_init(32000); +} + +MACHINE_START(SCB9328, "Synertronixx scb9328") + /* Sascha Hauer */ + .atag_offset = 100, + .map_io = mx1_map_io, + .init_early = imx1_init_early, + .init_irq = mx1_init_irq, + .init_time = scb9328_timer_init, + .init_machine = scb9328_init, + .restart = mxc_restart, +MACHINE_END |