forked from Minki/linux
15ac408ee5
OMAP tags are deprecrated so drop them. Drop UART config data which decides which UARTs to enable during boot. This is no longer necessary since serial core code disables clocks after inactivity. Background: with new UART idle code, all on-chip UARTs are idled using a configurable inactivity timer (default 5 seconds.) After the inactivity timer, UART clocks are disabled automatically. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
461 lines
12 KiB
C
461 lines
12 KiB
C
/*
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* board-overo.c (Gumstix Overo)
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*
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* Initial code: Steve Sakoman <steve@sakoman.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/i2c/twl4030.h>
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#include <linux/regulator/machine.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <mach/board.h>
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#include <mach/common.h>
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#include <mach/gpio.h>
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#include <mach/gpmc.h>
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#include <mach/hardware.h>
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#include <mach/nand.h>
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#include <mach/mux.h>
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#include <mach/usb.h>
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#include "sdram-micron-mt46h32m32lf-6.h"
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#include "mmc-twl4030.h"
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#define OVERO_GPIO_BT_XGATE 15
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#define OVERO_GPIO_W2W_NRESET 16
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#define OVERO_GPIO_PENDOWN 114
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#define OVERO_GPIO_BT_NRESET 164
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#define OVERO_GPIO_USBH_CPEN 168
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#define OVERO_GPIO_USBH_NRESET 183
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#define NAND_BLOCK_SIZE SZ_128K
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#define GPMC_CS0_BASE 0x60
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#define GPMC_CS_SIZE 0x30
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#define OVERO_SMSC911X_CS 5
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#define OVERO_SMSC911X_GPIO 176
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
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defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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#include <mach/mcspi.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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static struct omap2_mcspi_device_config ads7846_mcspi_config = {
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.turbo_mode = 0,
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.single_channel = 1, /* 0: slave, 1: master */
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};
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static int ads7846_get_pendown_state(void)
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{
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return !gpio_get_value(OVERO_GPIO_PENDOWN);
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}
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static struct ads7846_platform_data ads7846_config = {
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.x_max = 0x0fff,
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.y_max = 0x0fff,
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.x_plate_ohms = 180,
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.pressure_max = 255,
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.debounce_max = 10,
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.debounce_tol = 3,
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.debounce_rep = 1,
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.get_pendown_state = ads7846_get_pendown_state,
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.keep_vref_on = 1,
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};
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static struct spi_board_info overo_spi_board_info[] __initdata = {
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{
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.modalias = "ads7846",
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.bus_num = 1,
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.chip_select = 0,
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.max_speed_hz = 1500000,
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.controller_data = &ads7846_mcspi_config,
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.irq = OMAP_GPIO_IRQ(OVERO_GPIO_PENDOWN),
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.platform_data = &ads7846_config,
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}
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};
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static void __init overo_ads7846_init(void)
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{
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if ((gpio_request(OVERO_GPIO_PENDOWN, "ADS7846_PENDOWN") == 0) &&
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(gpio_direction_input(OVERO_GPIO_PENDOWN) == 0)) {
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gpio_export(OVERO_GPIO_PENDOWN, 0);
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} else {
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printk(KERN_ERR "could not obtain gpio for ADS7846_PENDOWN\n");
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return;
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}
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spi_register_board_info(overo_spi_board_info,
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ARRAY_SIZE(overo_spi_board_info));
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}
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#else
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static inline void __init overo_ads7846_init(void) { return; }
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#endif
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#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
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#include <linux/smsc911x.h>
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static struct resource overo_smsc911x_resources[] = {
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{
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.name = "smsc911x-memory",
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.flags = IORESOURCE_MEM,
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},
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{
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct smsc911x_platform_config overo_smsc911x_config = {
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = SMSC911X_USE_32BIT ,
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.phy_interface = PHY_INTERFACE_MODE_MII,
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};
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static struct platform_device overo_smsc911x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(overo_smsc911x_resources),
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.resource = overo_smsc911x_resources,
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.dev = {
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.platform_data = &overo_smsc911x_config,
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},
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};
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static inline void __init overo_init_smsc911x(void)
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{
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unsigned long cs_mem_base;
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if (gpmc_cs_request(OVERO_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
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printk(KERN_ERR "Failed request for GPMC mem for smsc911x\n");
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return;
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}
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overo_smsc911x_resources[0].start = cs_mem_base + 0x0;
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overo_smsc911x_resources[0].end = cs_mem_base + 0xff;
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if ((gpio_request(OVERO_SMSC911X_GPIO, "SMSC911X IRQ") == 0) &&
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(gpio_direction_input(OVERO_SMSC911X_GPIO) == 0)) {
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gpio_export(OVERO_SMSC911X_GPIO, 0);
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} else {
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printk(KERN_ERR "could not obtain gpio for SMSC911X IRQ\n");
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return;
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}
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overo_smsc911x_resources[1].start = OMAP_GPIO_IRQ(OVERO_SMSC911X_GPIO);
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overo_smsc911x_resources[1].end = 0;
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platform_device_register(&overo_smsc911x_device);
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}
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#else
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static inline void __init overo_init_smsc911x(void) { return; }
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#endif
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static struct mtd_partition overo_nand_partitions[] = {
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{
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.name = "xloader",
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.offset = 0, /* Offset = 0x00000 */
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.size = 4 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE
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},
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{
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.name = "uboot",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
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.size = 14 * NAND_BLOCK_SIZE,
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},
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{
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.name = "uboot environment",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
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.size = 2 * NAND_BLOCK_SIZE,
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},
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{
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.name = "linux",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
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.size = 32 * NAND_BLOCK_SIZE,
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},
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{
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.name = "rootfs",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct omap_nand_platform_data overo_nand_data = {
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.parts = overo_nand_partitions,
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.nr_parts = ARRAY_SIZE(overo_nand_partitions),
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.dma_channel = -1, /* disable DMA in OMAP NAND driver */
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};
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static struct resource overo_nand_resource = {
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device overo_nand_device = {
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.name = "omap2-nand",
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.id = -1,
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.dev = {
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.platform_data = &overo_nand_data,
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},
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.num_resources = 1,
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.resource = &overo_nand_resource,
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};
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static void __init overo_flash_init(void)
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{
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u8 cs = 0;
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u8 nandcs = GPMC_CS_NUM + 1;
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u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
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/* find out the chip-select on which NAND exists */
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while (cs < GPMC_CS_NUM) {
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u32 ret = 0;
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ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
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if ((ret & 0xC00) == 0x800) {
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printk(KERN_INFO "Found NAND on CS%d\n", cs);
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if (nandcs > GPMC_CS_NUM)
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nandcs = cs;
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}
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cs++;
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}
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if (nandcs > GPMC_CS_NUM) {
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printk(KERN_INFO "NAND: Unable to find configuration "
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"in GPMC\n ");
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return;
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}
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if (nandcs < GPMC_CS_NUM) {
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overo_nand_data.cs = nandcs;
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overo_nand_data.gpmc_cs_baseaddr = (void *)
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(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
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overo_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
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printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
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if (platform_device_register(&overo_nand_device) < 0)
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printk(KERN_ERR "Unable to register NAND device\n");
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}
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}
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static struct twl4030_hsmmc_info mmc[] = {
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{
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.mmc = 1,
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.wires = 4,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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},
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{
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.mmc = 2,
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.wires = 4,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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.transceiver = true,
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.ocr_mask = 0x00100000, /* 3.3V */
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},
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{} /* Terminator */
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};
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static struct regulator_consumer_supply overo_vmmc1_supply = {
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.supply = "vmmc",
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};
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static int overo_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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twl4030_mmc_init(mmc);
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overo_vmmc1_supply.dev = mmc[0].dev;
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return 0;
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}
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static struct twl4030_gpio_platform_data overo_gpio_data = {
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.gpio_base = OMAP_MAX_GPIO_LINES,
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.irq_base = TWL4030_GPIO_IRQ_BASE,
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.irq_end = TWL4030_GPIO_IRQ_END,
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.setup = overo_twl_gpio_setup,
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};
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static struct twl4030_usb_data overo_usb_data = {
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.usb_mode = T2_USB_MODE_ULPI,
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};
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static struct regulator_init_data overo_vmmc1 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &overo_vmmc1_supply,
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};
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/* mmc2 (WLAN) and Bluetooth don't use twl4030 regulators */
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static struct twl4030_platform_data overo_twldata = {
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.irq_base = TWL4030_IRQ_BASE,
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.irq_end = TWL4030_IRQ_END,
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.gpio = &overo_gpio_data,
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.usb = &overo_usb_data,
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.vmmc1 = &overo_vmmc1,
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};
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static struct i2c_board_info __initdata overo_i2c_boardinfo[] = {
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{
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I2C_BOARD_INFO("tps65950", 0x48),
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.flags = I2C_CLIENT_WAKE,
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.irq = INT_34XX_SYS_NIRQ,
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.platform_data = &overo_twldata,
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},
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};
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static int __init overo_i2c_init(void)
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{
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omap_register_i2c_bus(1, 2600, overo_i2c_boardinfo,
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ARRAY_SIZE(overo_i2c_boardinfo));
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/* i2c2 pins are used for gpio */
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omap_register_i2c_bus(3, 400, NULL, 0);
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return 0;
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}
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static void __init overo_init_irq(void)
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{
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omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
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mt46h32m32lf6_sdrc_params);
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omap_init_irq();
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omap_gpio_init();
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}
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static struct platform_device overo_lcd_device = {
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.name = "overo_lcd",
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.id = -1,
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};
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static struct omap_lcd_config overo_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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static struct omap_board_config_kernel overo_config[] __initdata = {
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{ OMAP_TAG_LCD, &overo_lcd_config },
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};
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static struct platform_device *overo_devices[] __initdata = {
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&overo_lcd_device,
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};
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static void __init overo_init(void)
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{
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overo_i2c_init();
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platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices));
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omap_board_config = overo_config;
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omap_board_config_size = ARRAY_SIZE(overo_config);
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omap_serial_init();
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overo_flash_init();
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usb_musb_init();
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overo_ads7846_init();
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overo_init_smsc911x();
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/* Ensure SDRC pins are mux'd for self-refresh */
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omap_cfg_reg(H16_34XX_SDRC_CKE0);
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omap_cfg_reg(H17_34XX_SDRC_CKE1);
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if ((gpio_request(OVERO_GPIO_W2W_NRESET,
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"OVERO_GPIO_W2W_NRESET") == 0) &&
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(gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) {
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gpio_export(OVERO_GPIO_W2W_NRESET, 0);
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gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
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udelay(10);
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gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
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} else {
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printk(KERN_ERR "could not obtain gpio for "
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"OVERO_GPIO_W2W_NRESET\n");
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}
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if ((gpio_request(OVERO_GPIO_BT_XGATE, "OVERO_GPIO_BT_XGATE") == 0) &&
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(gpio_direction_output(OVERO_GPIO_BT_XGATE, 0) == 0))
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gpio_export(OVERO_GPIO_BT_XGATE, 0);
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else
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printk(KERN_ERR "could not obtain gpio for OVERO_GPIO_BT_XGATE\n");
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if ((gpio_request(OVERO_GPIO_BT_NRESET, "OVERO_GPIO_BT_NRESET") == 0) &&
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(gpio_direction_output(OVERO_GPIO_BT_NRESET, 1) == 0)) {
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gpio_export(OVERO_GPIO_BT_NRESET, 0);
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gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
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mdelay(6);
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gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
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} else {
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printk(KERN_ERR "could not obtain gpio for "
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"OVERO_GPIO_BT_NRESET\n");
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}
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if ((gpio_request(OVERO_GPIO_USBH_CPEN, "OVERO_GPIO_USBH_CPEN") == 0) &&
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(gpio_direction_output(OVERO_GPIO_USBH_CPEN, 1) == 0))
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gpio_export(OVERO_GPIO_USBH_CPEN, 0);
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else
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printk(KERN_ERR "could not obtain gpio for "
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"OVERO_GPIO_USBH_CPEN\n");
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if ((gpio_request(OVERO_GPIO_USBH_NRESET,
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"OVERO_GPIO_USBH_NRESET") == 0) &&
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(gpio_direction_output(OVERO_GPIO_USBH_NRESET, 1) == 0))
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gpio_export(OVERO_GPIO_USBH_NRESET, 0);
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else
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printk(KERN_ERR "could not obtain gpio for "
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"OVERO_GPIO_USBH_NRESET\n");
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}
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static void __init overo_map_io(void)
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{
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omap2_set_globals_343x();
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omap2_map_common_io();
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}
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MACHINE_START(OVERO, "Gumstix Overo")
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.phys_io = 0x48000000,
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.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
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.boot_params = 0x80000100,
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.map_io = overo_map_io,
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.init_irq = overo_init_irq,
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.init_machine = overo_init,
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.timer = &omap_timer,
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MACHINE_END
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