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