418 lines
11 KiB
C
418 lines
11 KiB
C
/*
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* linux/arch/arm/mach-omap1/board-osk.c
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*
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* Board specific init for OMAP5912 OSK
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*
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* Written by Dirk Behme <dirk.behme@de.bosch.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/irq.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <asm/hardware.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/map.h>
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#include <asm/mach/flash.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/usb.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/tc.h>
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#include <asm/arch/common.h>
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#include <asm/arch/mcbsp.h>
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#include <asm/arch/omap-alsa.h>
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static struct mtd_partition osk_partitions[] = {
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/* bootloader (U-Boot, etc) in first sector */
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{
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.name = "bootloader",
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.offset = 0,
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.size = SZ_128K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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/* bootloader params in the next sector */
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{
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.name = "params",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_128K,
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.mask_flags = 0,
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}, {
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_2M,
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.mask_flags = 0
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}, {
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.name = "filesystem",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0
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}
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};
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static struct flash_platform_data osk_flash_data = {
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.map_name = "cfi_probe",
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.width = 2,
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.parts = osk_partitions,
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.nr_parts = ARRAY_SIZE(osk_partitions),
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};
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static struct resource osk_flash_resource = {
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/* this is on CS3, wherever it's mapped */
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device osk5912_flash_device = {
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.name = "omapflash",
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.id = 0,
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.dev = {
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.platform_data = &osk_flash_data,
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},
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.num_resources = 1,
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.resource = &osk_flash_resource,
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};
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static struct resource osk5912_smc91x_resources[] = {
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[0] = {
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.start = OMAP_OSK_ETHR_START, /* Physical */
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.end = OMAP_OSK_ETHR_START + 0xf,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = OMAP_GPIO_IRQ(0),
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.end = OMAP_GPIO_IRQ(0),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device osk5912_smc91x_device = {
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.name = "smc91x",
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.id = -1,
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.num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
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.resource = osk5912_smc91x_resources,
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};
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static struct resource osk5912_cf_resources[] = {
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[0] = {
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.start = OMAP_GPIO_IRQ(62),
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.end = OMAP_GPIO_IRQ(62),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device osk5912_cf_device = {
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.name = "omap_cf",
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.id = -1,
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.dev = {
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.platform_data = (void *) 2 /* CS2 */,
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},
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.num_resources = ARRAY_SIZE(osk5912_cf_resources),
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.resource = osk5912_cf_resources,
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};
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#define DEFAULT_BITPERSAMPLE 16
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static struct omap_mcbsp_reg_cfg mcbsp_regs = {
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.spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
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.spcr1 = RINTM(3) | RRST,
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.rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
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RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
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.rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
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.xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
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XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
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.xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
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.srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
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.srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
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/*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
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.pcr0 = CLKXP | CLKRP, /* mcbsp: slave */
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};
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static struct omap_alsa_codec_config alsa_config = {
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.name = "OSK AIC23",
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.mcbsp_regs_alsa = &mcbsp_regs,
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.codec_configure_dev = NULL, // aic23_configure,
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.codec_set_samplerate = NULL, // aic23_set_samplerate,
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.codec_clock_setup = NULL, // aic23_clock_setup,
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.codec_clock_on = NULL, // aic23_clock_on,
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.codec_clock_off = NULL, // aic23_clock_off,
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.get_default_samplerate = NULL, // aic23_get_default_samplerate,
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};
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static struct platform_device osk5912_mcbsp1_device = {
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.name = "omap_alsa_mcbsp",
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.id = 1,
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.dev = {
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.platform_data = &alsa_config,
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},
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};
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static struct platform_device *osk5912_devices[] __initdata = {
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&osk5912_flash_device,
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&osk5912_smc91x_device,
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&osk5912_cf_device,
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&osk5912_mcbsp1_device,
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};
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static void __init osk_init_smc91x(void)
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{
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if ((omap_request_gpio(0)) < 0) {
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printk("Error requesting gpio 0 for smc91x irq\n");
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return;
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}
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/* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
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EMIFS_CCS(1) |= 0x3;
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}
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static void __init osk_init_cf(void)
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{
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omap_cfg_reg(M7_1610_GPIO62);
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if ((omap_request_gpio(62)) < 0) {
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printk("Error requesting gpio 62 for CF irq\n");
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return;
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}
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/* the CF I/O IRQ is really active-low */
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set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
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}
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static void __init osk_init_irq(void)
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{
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omap1_init_common_hw();
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omap_init_irq();
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omap_gpio_init();
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osk_init_smc91x();
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osk_init_cf();
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}
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static struct omap_usb_config osk_usb_config __initdata = {
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/* has usb host connector (A) ... for development it can also
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* be used, with a NONSTANDARD gender-bending cable/dongle, as
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* a peripheral.
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*/
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#ifdef CONFIG_USB_GADGET_OMAP
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.register_dev = 1,
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.hmc_mode = 0,
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#else
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.register_host = 1,
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.hmc_mode = 16,
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.rwc = 1,
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#endif
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.pins[0] = 2,
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};
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static struct omap_uart_config osk_uart_config __initdata = {
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.enabled_uarts = (1 << 0),
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};
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#ifdef CONFIG_OMAP_OSK_MISTRAL
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static struct omap_lcd_config osk_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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#endif
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static struct omap_board_config_kernel osk_config[] = {
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{ OMAP_TAG_USB, &osk_usb_config },
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{ OMAP_TAG_UART, &osk_uart_config },
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#ifdef CONFIG_OMAP_OSK_MISTRAL
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{ OMAP_TAG_LCD, &osk_lcd_config },
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#endif
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};
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#ifdef CONFIG_OMAP_OSK_MISTRAL
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#include <linux/input.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <asm/arch/keypad.h>
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static const int osk_keymap[] = {
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/* KEY(col, row, code) */
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KEY(0, 0, KEY_F1), /* SW4 */
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KEY(0, 3, KEY_UP), /* (sw2/up) */
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KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
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KEY(1, 2, KEY_LEFT), /* (sw2/left) */
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KEY(2, 0, KEY_SPACE), /* SW3 */
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KEY(2, 1, KEY_ESC), /* SW6 */
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KEY(2, 2, KEY_DOWN), /* (sw2/down) */
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KEY(3, 2, KEY_ENTER), /* (sw2/select) */
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KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
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0
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};
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static struct omap_kp_platform_data osk_kp_data = {
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.rows = 8,
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.cols = 8,
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.keymap = (int *) osk_keymap,
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.keymapsize = ARRAY_SIZE(osk_keymap),
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.delay = 9,
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};
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static struct resource osk5912_kp_resources[] = {
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[0] = {
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.start = INT_KEYBOARD,
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.end = INT_KEYBOARD,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device osk5912_kp_device = {
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.name = "omap-keypad",
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.id = -1,
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.dev = {
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.platform_data = &osk_kp_data,
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},
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.num_resources = ARRAY_SIZE(osk5912_kp_resources),
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.resource = osk5912_kp_resources,
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};
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static struct platform_device osk5912_lcd_device = {
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.name = "lcd_osk",
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.id = -1,
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};
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static struct platform_device *mistral_devices[] __initdata = {
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&osk5912_kp_device,
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&osk5912_lcd_device,
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};
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static int mistral_get_pendown_state(void)
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{
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return !omap_get_gpio_datain(4);
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}
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static const struct ads7846_platform_data mistral_ts_info = {
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.model = 7846,
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.vref_delay_usecs = 100, /* internal, no capacitor */
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.x_plate_ohms = 419,
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.y_plate_ohms = 486,
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.get_pendown_state = mistral_get_pendown_state,
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};
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static struct spi_board_info __initdata mistral_boardinfo[] = { {
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/* MicroWire (bus 2) CS0 has an ads7846e */
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.modalias = "ads7846",
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.platform_data = &mistral_ts_info,
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.irq = OMAP_GPIO_IRQ(4),
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.max_speed_hz = 120000 /* max sample rate at 3V */
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* 26 /* command + data + overhead */,
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.bus_num = 2,
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.chip_select = 0,
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} };
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#ifdef CONFIG_PM
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static irqreturn_t
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osk_mistral_wake_interrupt(int irq, void *ignored)
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{
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return IRQ_HANDLED;
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}
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#endif
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static void __init osk_mistral_init(void)
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{
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/* NOTE: we could actually tell if there's a Mistral board
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* attached, e.g. by trying to read something from the ads7846.
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* But this arch_init() code is too early for that, since we
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* can't talk to the ads or even the i2c eeprom.
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*/
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// omap_cfg_reg(P19_1610_GPIO6); // BUSY
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omap_cfg_reg(P20_1610_GPIO4); // PENIRQ
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set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
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spi_register_board_info(mistral_boardinfo,
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ARRAY_SIZE(mistral_boardinfo));
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/* the sideways button (SW1) is for use as a "wakeup" button */
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omap_cfg_reg(N15_1610_MPUIO2);
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if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
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int ret = 0;
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omap_set_gpio_direction(OMAP_MPUIO(2), 1);
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set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
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#ifdef CONFIG_PM
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/* share the IRQ in case someone wants to use the
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* button for more than wakeup from system sleep.
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*/
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ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
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&osk_mistral_wake_interrupt,
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IRQF_SHARED, "mistral_wakeup",
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&osk_mistral_wake_interrupt);
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if (ret != 0) {
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omap_free_gpio(OMAP_MPUIO(2));
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printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
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ret);
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} else
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enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
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#endif
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} else
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printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
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platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
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}
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#else
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static void __init osk_mistral_init(void) { }
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#endif
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#define EMIFS_CS3_VAL (0x88013141)
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static void __init osk_init(void)
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{
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/* Workaround for wrong CS3 (NOR flash) timing
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* There are some U-Boot versions out there which configure
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* wrong CS3 memory timings. This mainly leads to CRC
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* or similiar errors if you use NOR flash (e.g. with JFFS2)
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*/
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if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
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EMIFS_CCS(3) = EMIFS_CS3_VAL;
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osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
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osk_flash_resource.end += SZ_32M - 1;
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platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
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omap_board_config = osk_config;
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omap_board_config_size = ARRAY_SIZE(osk_config);
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USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
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omap_serial_init();
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osk_mistral_init();
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}
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static void __init osk_map_io(void)
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{
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omap1_map_common_io();
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}
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MACHINE_START(OMAP_OSK, "TI-OSK")
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/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
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.phys_io = 0xfff00000,
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.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
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.boot_params = 0x10000100,
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.map_io = osk_map_io,
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.init_irq = osk_init_irq,
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.init_machine = osk_init,
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.timer = &omap_timer,
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MACHINE_END
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