/*
* Support for Cogent CSB726
*
* Copyright (c) 2008 Dmitry Eremin-Solenikov
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/sm501.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/csb726.h>
#include <mach/mfp-pxa27x.h>
#include <mach/i2c.h>
#include <mach/mmc.h>
#include <mach/ohci.h>
#include <mach/pxa2xx-regs.h>
#include "generic.h"
#include "devices.h"
/*
* n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
* nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
* XXX: 21,
* XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
* XXX: 33 CS_5 for LAN9215 on R1
*/
static unsigned long csb726_pin_config[] = {
GPIO78_nCS_2, /* EXP_CS */
GPIO79_nCS_3, /* SMSC9215 */
GPIO80_nCS_4, /* SM501 */
GPIO52_GPIO, /* #SMSC9251 int */
GPIO53_GPIO, /* SM501 int */
GPIO1_GPIO, /* GPIO0 */
GPIO11_GPIO, /* GPIO1 */
GPIO9_GPIO, /* GPIO2 */
GPIO10_GPIO, /* GPIO3 */
GPIO16_PWM0_OUT, /* or GPIO4 */
GPIO17_PWM1_OUT, /* or GPIO5 */
GPIO94_GPIO, /* GPIO6 */
GPIO95_GPIO, /* GPIO7 */
GPIO96_GPIO, /* GPIO8 */
GPIO97_GPIO, /* GPIO9 */
GPIO15_GPIO, /* EXP_IRQ */
GPIO18_RDY, /* EXP_WAIT */
GPIO0_GPIO, /* PWR_INT */
GPIO104_GPIO, /* PWR_OFF */
GPIO12_GPIO, /* touch irq */
GPIO13_SSP2_TXD,
GPIO14_SSP2_SFRM,
MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
GPIO22_SSP2_SCLK,
GPIO81_SSP3_TXD,
GPIO82_SSP3_RXD,
GPIO83_SSP3_SFRM,
GPIO84_SSP3_SCLK,
GPIO20_GPIO, /* SDIO int */
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
GPIO100_GPIO, /* SD CD */
GPIO101_GPIO, /* SD WP */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO113_AC97_nRESET,
GPIO34_FFUART_RXD,
GPIO35_FFUART_CTS,
GPIO36_FFUART_DCD,
GPIO37_FFUART_DSR,
GPIO38_FFUART_RI,
GPIO39_FFUART_TXD,
GPIO40_FFUART_DTR,
GPIO41_FFUART_RTS,
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO44_BTUART_CTS,
GPIO45_BTUART_RTS,
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO54_nPCE_2,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16, /* maybe unused */
GPIO85_nPCE_1,
GPIO98_GPIO, /* CF IRQ */
GPIO99_GPIO, /* CF CD */
GPIO103_GPIO, /* Reset */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
};
static struct pxamci_platform_data csb726_mci_data;
static int csb726_mci_init(struct device *dev,
irq_handler_t detect, void *data)
{
int err;
csb726_mci_data.detect_delay = msecs_to_jiffies(500);
err = gpio_request(CSB726_GPIO_MMC_DETECT, "MMC detect");
if (err)
goto err_det_req;
err = gpio_direction_input(CSB726_GPIO_MMC_DETECT);
if (err)
goto err_det_dir;
err = gpio_request(CSB726_GPIO_MMC_RO, "MMC ro");
if (err)
goto err_ro_req;
err = gpio_direction_input(CSB726_GPIO_MMC_RO);
if (err)
goto err_ro_dir;
err = request_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), detect,
IRQF_DISABLED, "MMC card detect", data);
if (err)
goto err_irq;
return 0;
err_irq:
err_ro_dir:
gpio_free(CSB726_GPIO_MMC_RO);
err_ro_req:
err_det_dir:
gpio_free(CSB726_GPIO_MMC_DETECT);
err_det_req:
return err;
}
static int csb726_mci_get_ro(struct device *dev)
{
return gpio_get_value(CSB726_GPIO_MMC_RO);
}
static void csb726_mci_exit(struct device *dev, void *data)
{
free_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), data);
gpio_free(CSB726_GPIO_MMC_RO);
gpio_free(CSB726_GPIO_MMC_DETECT);
}
static struct pxamci_platform_data csb726_mci = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = csb726_mci_init,
.get_ro = csb726_mci_get_ro,
/* FIXME setpower */
.exit = csb726_mci_exit,
};
static struct pxaohci_platform_data csb726_ohci_platform_data = {
.port_mode = PMM_NPS_MODE,
.flags = ENABLE_PORT1 | NO_OC_PROTECTION,
};
static struct mtd_partition csb726_flash_partitions[] = {
{
.name = "Bootloader",
.offset = 0,
.size = CSB726_FLASH_uMON,
.mask_flags = MTD_WRITEABLE /* force read-only */
},
{
.name = "root",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
}
};
static struct physmap_flash_data csb726_flash_data = {
.width = 2,
.parts = csb726_flash_partitions,
.nr_parts = ARRAY_SIZE(csb726_flash_partitions),
};
static struct resource csb726_flash_resources[] = {
{
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device csb726_flash = {
.name = "physmap-flash",
.dev = {
.platform_data = &csb726_flash_data,
},
.resource = csb726_flash_resources,
.num_resources = ARRAY_SIZE(csb726_flash_resources),
};
static struct resource csb726_sm501_resources[] = {
{
.start = PXA_CS4_PHYS,
.end = PXA_CS4_PHYS + SZ_8M - 1,
.flags = IORESOURCE_MEM,
.name = "sm501-localmem",
},
{
.start = PXA_CS4_PHYS + SZ_64M - SZ_2M,
.end = PXA_CS4_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
.name = "sm501-regs",
},
{
.start = CSB726_IRQ_SM501,
.end = CSB726_IRQ_SM501,
.flags = IORESOURCE_IRQ,
},
};
static struct sm501_initdata csb726_sm501_initdata = {
/* .devices = SM501_USE_USB_HOST, */
.devices = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
};
static struct sm501_platdata csb726_sm501_platdata = {
.init = &csb726_sm501_initdata,
};
static struct platform_device csb726_sm501 = {
.name = "sm501",
.id = 0,
.num_resources = ARRAY_SIZE(csb726_sm501_resources),
.resource = csb726_sm501_resources,
.dev = {
.platform_data = &csb726_sm501_platdata,
},
};
static struct resource csb726_lan_resources[] = {
{
.start = PXA_CS3_PHYS,
.end = PXA_CS3_PHYS + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = CSB726_IRQ_LAN,
.end = CSB726_IRQ_LAN,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device csb726_lan = {
.name = "smc911x",
.id = -1,
.num_resources = ARRAY_SIZE(csb726_lan_resources),
.resource = csb726_lan_resources,
};
static struct platform_device *devices[] __initdata = {
&csb726_flash,
&csb726_sm501,
&csb726_lan,
};
static void __init csb726_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
/* MSC1 = 0x7ffc3ffc; *//* LAN9215/EXP_CS */
/* MSC2 = 0x06697ff4; *//* none/SM501 */
MSC2 = (MSC2 & ~0xffff) | 0x7ff4; /* SM501 */
pxa_set_i2c_info(NULL);
pxa27x_set_i2c_power_info(NULL);
pxa_set_mci_info(&csb726_mci);
pxa_set_ohci_info(&csb726_ohci_platform_data);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
MACHINE_START(CSB726, "Cogent CSB726")
.phys_io = 0x40000000,
.boot_params = 0xa0000100,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.map_io = pxa_map_io,
.init_irq = pxa27x_init_irq,
.init_machine = csb726_init,
.timer = &pxa_timer,
MACHINE_END
