* Tony Lindgren <tony@xxxxxxxxxxx> [081003 15:26]: > From: Steve Sakoman <steve@xxxxxxxxxxx> > > This patch adds support for basic features: nand, uarts, i2c, > mmc, rtc, and usb Hmm, looks like I need to update this description as mmc and usb code is not ready yet. > Signed-off-by: Steve Sakoman <steve@xxxxxxxxxxx> > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> > > diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig > index 7634f23..477a613 100644 > --- a/arch/arm/mach-omap2/Kconfig > +++ b/arch/arm/mach-omap2/Kconfig > @@ -49,3 +49,6 @@ config MACH_OMAP3_BEAGLE > bool "OMAP3 BEAGLE board" > depends on ARCH_OMAP3 && ARCH_OMAP34XX > > +config MACH_OVERO > + bool "Gumstix Overo board" > + depends on ARCH_OMAP3 && ARCH_OMAP34XX > diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile > index 420ad9a..feb9caf 100644 > --- a/arch/arm/mach-omap2/Makefile > +++ b/arch/arm/mach-omap2/Makefile > @@ -30,4 +30,5 @@ obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o > obj-$(CONFIG_MACH_OMAP_2430SDP) += board-2430sdp.o > obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o > obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o > +obj-$(CONFIG_MACH_OVERO) += board-overo.o > > diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c > new file mode 100644 > index 0000000..394d88f > --- /dev/null > +++ b/arch/arm/mach-omap2/board-overo.c > @@ -0,0 +1,235 @@ > +/* > + * board-overo.c (Gumstix Overo) > + * > + * Initial code: Steve Sakoman <steve@xxxxxxxxxxx> > + * > + * 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. > + * > + * 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 St, Fifth Floor, Boston, MA > + * 02110-1301 USA > + * > + */ > + > +#include <linux/clk.h> > +#include <linux/delay.h> > +#include <linux/err.h> > +#include <linux/init.h> > +#include <linux/io.h> > +#include <linux/kernel.h> > +#include <linux/platform_device.h> > + > +#include <linux/mtd/mtd.h> > +#include <linux/mtd/nand.h> > +#include <linux/mtd/partitions.h> > + > +#include <asm/mach-types.h> > +#include <asm/mach/arch.h> > +#include <asm/mach/flash.h> > +#include <asm/mach/map.h> > + > +#include <mach/board-overo.h> > +#include <mach/board.h> > +#include <mach/common.h> > +#include <mach/gpio.h> > +#include <mach/gpmc.h> > +#include <mach/hardware.h> > +#include <mach/nand.h> > + > +#define NAND_BLOCK_SIZE SZ_128K > +#define GPMC_CS0_BASE 0x60 > +#define GPMC_CS_SIZE 0x30 > + > +static struct mtd_partition overo_nand_partitions[] = { > + { > + .name = "xloader", > + .offset = 0, /* Offset = 0x00000 */ > + .size = 4 * NAND_BLOCK_SIZE, > + .mask_flags = MTD_WRITEABLE > + }, > + { > + .name = "uboot", > + .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ > + .size = 14 * NAND_BLOCK_SIZE, > + }, > + { > + .name = "uboot environment", > + .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */ > + .size = 2 * NAND_BLOCK_SIZE, > + }, > + { > + .name = "linux", > + .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ > + .size = 32 * NAND_BLOCK_SIZE, > + }, > + { > + .name = "rootfs", > + .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */ > + .size = MTDPART_SIZ_FULL, > + }, > +}; > + > +static struct omap_nand_platform_data overo_nand_data = { > + .parts = overo_nand_partitions, > + .nr_parts = ARRAY_SIZE(overo_nand_partitions), > + .dma_channel = -1, /* disable DMA in OMAP NAND driver */ > +}; > + > +static struct resource overo_nand_resource = { > + .flags = IORESOURCE_MEM, > +}; > + > +static struct platform_device overo_nand_device = { > + .name = "omap2-nand", > + .id = -1, > + .dev = { > + .platform_data = &overo_nand_data, > + }, > + .num_resources = 1, > + .resource = &overo_nand_resource, > +}; > + > + > +static void __init overo_flash_init(void) > +{ > + u8 cs = 0; > + u8 nandcs = GPMC_CS_NUM + 1; > + > + u32 gpmc_base_add = OMAP34XX_GPMC_VIRT; > + > + /* find out the chip-select on which NAND exists */ > + while (cs < GPMC_CS_NUM) { > + u32 ret = 0; > + ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); > + > + if ((ret & 0xC00) == 0x800) { > + printk(KERN_INFO "Found NAND on CS%d\n", cs); > + if (nandcs > GPMC_CS_NUM) > + nandcs = cs; > + } > + cs++; > + } > + > + if (nandcs > GPMC_CS_NUM) { > + printk(KERN_INFO "NAND: Unable to find configuration " > + "in GPMC\n "); > + return; > + } > + > + if (nandcs < GPMC_CS_NUM) { > + overo_nand_data.cs = nandcs; > + overo_nand_data.gpmc_cs_baseaddr = (void *) > + (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE); > + overo_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add); > + > + printk(KERN_INFO "Registering NAND on CS%d\n", nandcs); > + if (platform_device_register(&overo_nand_device) < 0) > + printk(KERN_ERR "Unable to register NAND device\n"); > + } > +} > +static struct omap_uart_config overo_uart_config __initdata = { > + .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), > +}; > + > +static int __init overo_i2c_init(void) > +{ > + /* i2c2 pins are used for gpio */ > + omap_register_i2c_bus(3, 400, NULL, 0); > + return 0; > +} > + > +static void __init overo_init_irq(void) > +{ > + omap_init_irq(); > + omap_gpio_init(); > +} > + > +static struct platform_device overo_lcd_device = { > + .name = "overo_lcd", > + .id = -1, > +}; > + > +static struct omap_lcd_config overo_lcd_config __initdata = { > + .ctrl_name = "internal", > +}; > + > +static struct omap_board_config_kernel overo_config[] __initdata = { > + { OMAP_TAG_UART, &overo_uart_config }, > + { OMAP_TAG_LCD, &overo_lcd_config }, > +}; > + > +static struct platform_device *overo_devices[] __initdata = { > + &overo_lcd_device, > +}; > + > +static void __init overo_init(void) > +{ > + overo_i2c_init(); > + platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices)); > + omap_board_config = overo_config; > + omap_board_config_size = ARRAY_SIZE(overo_config); > + omap_serial_init(); > + overo_flash_init(); > + > + if ((gpio_request(OVERO_GPIO_W2W_NRESET, > + "OVERO_GPIO_W2W_NRESET") == 0) && > + (gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) { > + gpio_export(OVERO_GPIO_W2W_NRESET, 0); > + gpio_set_value(OVERO_GPIO_W2W_NRESET, 0); > + udelay(10); > + gpio_set_value(OVERO_GPIO_W2W_NRESET, 1); > + } else { > + printk(KERN_ERR "could not obtain gpio for " > + "OVERO_GPIO_W2W_NRESET\n"); > + } > + > + if ((gpio_request(OVERO_GPIO_BT_NRESET, "OVERO_GPIO_BT_NRESET") == 0) && > + (gpio_direction_output(OVERO_GPIO_BT_NRESET, 1) == 0)) { > + gpio_export(OVERO_GPIO_BT_NRESET, 0); > + gpio_set_value(OVERO_GPIO_BT_NRESET, 0); > + mdelay(6); > + gpio_set_value(OVERO_GPIO_BT_NRESET, 1); > + } else { > + printk(KERN_ERR "could not obtain gpio for " > + "OVERO_GPIO_BT_NRESET\n"); > + } > + > + if ((gpio_request(OVERO_GPIO_USBH_CPEN, "OVERO_GPIO_USBH_CPEN") == 0) && > + (gpio_direction_output(OVERO_GPIO_USBH_CPEN, 1) == 0)) > + gpio_export(OVERO_GPIO_USBH_CPEN, 0); > + else > + printk(KERN_ERR "could not obtain gpio for " > + "OVERO_GPIO_USBH_CPEN\n"); > + > + if ((gpio_request(OVERO_GPIO_USBH_NRESET, > + "OVERO_GPIO_USBH_NRESET") == 0) && > + (gpio_direction_output(OVERO_GPIO_USBH_NRESET, 1) == 0)) > + gpio_export(OVERO_GPIO_USBH_NRESET, 0); > + else > + printk(KERN_ERR "could not obtain gpio for " > + "OVERO_GPIO_USBH_NRESET\n"); > +} > + > +static void __init overo_map_io(void) > +{ > + omap2_set_globals_343x(); > + omap2_map_common_io(); > +} > + > +MACHINE_START(OVERO, "Gumstix Overo") > + .phys_io = 0x48000000, > + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, > + .boot_params = 0x80000100, > + .map_io = overo_map_io, > + .init_irq = overo_init_irq, > + .init_machine = overo_init, > + .timer = &omap_timer, > +MACHINE_END > diff --git a/arch/arm/plat-omap/include/mach/board-overo.h b/arch/arm/plat-omap/include/mach/board-overo.h > new file mode 100644 > index 0000000..b70f22a > --- /dev/null > +++ b/arch/arm/plat-omap/include/mach/board-overo.h > @@ -0,0 +1,25 @@ > +/* > + * board-overo.h (Gumstix Overo) > + * > + * Initial code: Steve Sakoman <steve@xxxxxxxxxxx> > + * > + * 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. > + * > + * 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., > + * 675 Mass Ave, Cambridge, MA 02139, USA. > + */ > + > +#ifndef __ASM_ARCH_OVERO_H > +#define __ASM_ARCH_OVERO_H > + > +#define OVERO_GPIO_W2W_NRESET 16 > +#define OVERO_GPIO_BT_NRESET 164 > +#define OVERO_GPIO_USBH_CPEN 168 > +#define OVERO_GPIO_USBH_NRESET 183 > + > +#endif /* ____ASM_ARCH_OVERO_H */ > + > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html