new experimental driver for the CF slot on the RouterBOARD 153
SVN-Revision: 9707
This commit is contained in:
Gabor Juhos
parent
71f1ca2cba
commit
bb6c1aa770
6 changed files with 362 additions and 31 deletions
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@ -184,16 +184,17 @@ endef
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$(eval $(call KernelPackage,nbd))
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define KernelPackage/rb153-cf
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define KernelPackage/pata-rb153-cf
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SUBMENU:=$(BLOCK_MENU)
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TITLE:=RouterBoard 153 CF Slot
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KCONFIG:=CONFIG_BLK_DEV_CF_MIPS
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FILES:=$(LINUX_DIR)/drivers/block/rb1xx/rb153-cf.$(LINUX_KMOD_SUFFIX)
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AUTOLOAD:=$(call AutoLoad,30,rb153-cf)
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DEPENDS:=kmod-ata-core @TARGET_adm5120_router_le
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TITLE:=RouterBOARD 153 CF Slot support
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KCONFIG:=CONFIG_PATA_RB153_CF
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FILES:=$(LINUX_DIR)/drivers/ata/pata_rb153_cf.$(LINUX_KMOD_SUFFIX)
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AUTOLOAD:=$(call AutoLoad,30,pata_rb153_cf)
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endef
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define KernelPackage/rb153-cf/description
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Kernel module for the RouterBoard 153 CF slot
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define KernelPackage/pata-rb153-cf/description
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Kernel support for the RouterBoard 153 CF slot.
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endef
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$(eval $(call KernelPackage,rb153-cf))
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$(eval $(call KernelPackage,pata-rb153-cf))
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@ -42,8 +42,8 @@
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#include <adm5120_nand.h>
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#include <adm5120_board.h>
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#include <adm5120_platform.h>
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#include <adm5120_cf.h>
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#include <adm5120_info.h>
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#include <prom/routerboot.h>
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#define RB1XX_NAND_CHIP_DELAY 25
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@ -127,8 +127,8 @@ static struct resource rb150_nand_resource[] = {
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static struct resource rb153_cf_resources[] = {
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{
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.name = "cf_membase",
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.start = ADM5120_EXTIO0_BASE,
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.end = ADM5120_EXTIO0_BASE + ADM5120_MPMC_SIZE-1 ,
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.start = ADM5120_EXTIO1_BASE,
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.end = ADM5120_EXTIO1_BASE + ADM5120_EXTIO1_SIZE-1 ,
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.flags = IORESOURCE_MEM
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}, {
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.name = "cf_irq",
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@ -138,16 +138,11 @@ static struct resource rb153_cf_resources[] = {
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}
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};
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static struct cf_device rb153_cf_data = {
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.gpio_pin = ADM5120_GPIO_PIN4
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};
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static struct platform_device rb153_cf_device = {
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.name = "rb153-cf",
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.name = "pata-rb153-cf",
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.id = -1,
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.resource = rb153_cf_resources,
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.num_resources = ARRAY_SIZE(rb153_cf_resources),
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.dev.platform_data = &rb153_cf_data,
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};
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static struct platform_device *rb153_devices[] __initdata = {
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@ -247,6 +242,9 @@ static void __init rb1xx_flash_setup(void)
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static void __init rb153_cf_setup(void)
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{
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/* enable CSX1:INTX1 on GPIO 3:4 for the CF slot */
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adm5120_gpio_csx1_enable();
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gpio_request(RB153_GPIO_CF_RDY, "cf-ready");
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gpio_direction_input(RB153_GPIO_CF_RDY);
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gpio_request(RB153_GPIO_CF_WT, "cf-wait");
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303
target/linux/adm5120/files/drivers/ata/pata_rb153_cf.c
Normal file
303
target/linux/adm5120/files/drivers/ata/pata_rb153_cf.c
Normal file
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@ -0,0 +1,303 @@
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/*
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* A low-level PATA driver to handle a Compact Flash connected on the
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* Mikrotik's RouterBoard 153 board.
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*
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* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
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*
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* This file was based on: drivers/ata/pata_ixp4xx_cf.c
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* Copyright (C) 2006-07 Tower Technologies
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* Author: Alessandro Zummo <a.zummo@towertech.it>
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*
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* Also was based on the driver for Linux 2.4.xx published by Mikrotik for
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* their RouterBoard 1xx and 5xx series devices. The original Mikrotik code
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* seems not to have a license.
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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/module.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/libata.h>
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#include <scsi/scsi_host.h>
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#include <asm/gpio.h>
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#define DRV_NAME "pata-rb153-cf"
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#define DRV_VERSION "0.1"
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#define DRV_DESC "PATA driver for RouterBOARD 153 Compact Flash"
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#define RB153_CF_MAXPORTS 1
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#define RB153_CF_IO_DELAY 100
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#define RB153_CF_REG_CMD 0x0800
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#define RB153_CF_REG_CTRL 0x080E
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#define RB153_CF_REG_DATA 0x0C00
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struct rb153_cf_info {
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void __iomem *iobase;
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unsigned int gpio_line;
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int error;
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};
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/* ------------------------------------------------------------------------ */
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static inline void rb153_pata_finish_io(struct ata_port *ap)
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{
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struct ata_host *ah = ap->host;
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ata_altstatus(ap);
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ndelay(RB153_CF_IO_DELAY);
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set_irq_type(ah->irq, IRQ_TYPE_LEVEL_HIGH);
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}
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static void rb153_pata_exec_command(struct ata_port *ap,
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const struct ata_taskfile *tf)
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{
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writeb(tf->command, ap->ioaddr.command_addr);
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rb153_pata_finish_io(ap);
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}
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static void rb153_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
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unsigned int buflen, int write_data)
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{
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struct ata_port *ap = adev->ap;
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unsigned int i;
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if (write_data) {
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for (i = 0; i < buflen; i++)
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writeb(buf[i], ap->ioaddr.data_addr);
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} else {
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for (; buflen > 0; buflen--)
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buf[i] = readb(ap->ioaddr.data_addr);
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}
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rb153_pata_finish_io(ap);
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}
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static void rb153_pata_thaw(struct ata_port *ap)
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{
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struct rb153_cf_info *info = ap->host->private_data;
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info->error = 0;
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}
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static irqreturn_t rb153_pata_irq_handler(int irq, void *dev_instance)
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{
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struct ata_host *ah = dev_instance;
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struct rb153_cf_info *info = ah->private_data;
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if (gpio_get_value(info->gpio_line)) {
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set_irq_type(ah->irq, IRQ_TYPE_LEVEL_LOW);
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if (!info->error)
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ata_interrupt(irq, dev_instance);
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} else {
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set_irq_type(ah->irq, IRQ_TYPE_LEVEL_HIGH);
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}
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return IRQ_HANDLED;
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}
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static void rb153_pata_irq_clear(struct ata_port *ap)
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{
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}
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static int rb153_pata_port_start(struct ata_port *ap)
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{
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return 0;
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}
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static struct ata_port_operations rb153_pata_port_ops = {
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.port_disable = ata_port_disable,
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.tf_load = ata_tf_load,
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.tf_read = ata_tf_read,
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.exec_command = rb153_pata_exec_command,
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.check_status = ata_check_status,
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.dev_select = ata_std_dev_select,
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.data_xfer = rb153_pata_data_xfer,
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.qc_prep = ata_qc_prep,
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.qc_issue = ata_qc_issue_prot,
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.thaw = rb153_pata_thaw,
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.error_handler = ata_bmdma_error_handler,
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.irq_handler = rb153_pata_irq_handler,
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.irq_clear = rb153_pata_irq_clear,
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.irq_on = ata_irq_on,
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.port_start = rb153_pata_port_start,
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};
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/* ------------------------------------------------------------------------ */
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static struct scsi_host_template rb153_pata_sht = {
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.module = THIS_MODULE,
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.name = DRV_NAME,
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.ioctl = ata_scsi_ioctl,
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.queuecommand = ata_scsi_queuecmd,
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.slave_configure = ata_scsi_slave_config,
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.slave_destroy = ata_scsi_slave_destroy,
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.bios_param = ata_std_bios_param,
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.proc_name = DRV_NAME,
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.can_queue = ATA_DEF_QUEUE,
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.this_id = ATA_SHT_THIS_ID,
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.sg_tablesize = LIBATA_MAX_PRD,
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.dma_boundary = ATA_DMA_BOUNDARY,
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.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
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.emulated = ATA_SHT_EMULATED,
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.use_clustering = ATA_SHT_USE_CLUSTERING,
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};
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/* ------------------------------------------------------------------------ */
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static void rb153_pata_setup_ports(struct ata_host *ah)
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{
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struct rb153_cf_info *info = ah->private_data;
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struct ata_port *ap;
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struct ata_ioports *iop;
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ap = ah->ports[0];
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iop = &ap->ioaddr;
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ap->ops = &rb153_pata_port_ops;
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ap->pio_mask = 0x1f; /* PIO4 */
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ap->flags |= ATA_FLAG_MMIO | ATA_FLAG_NO_LEGACY;
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iop->cmd_addr = info->iobase + RB153_CF_REG_CMD;
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iop->ctl_addr = info->iobase + RB153_CF_REG_CTRL;
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iop->altstatus_addr = info->iobase + RB153_CF_REG_CTRL;
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iop->data_addr = info->iobase + RB153_CF_REG_DATA;
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ata_std_ports(iop);
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}
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static __devinit int rb153_pata_driver_probe(struct platform_device *pdev)
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{
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unsigned int irq;
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int gpio;
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struct resource *res;
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struct ata_host *ah;
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struct rb153_cf_info *info;
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int ret;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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dev_err(&pdev->dev, "no IOMEM resource found\n");
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return -EINVAL;
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}
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irq = platform_get_irq(pdev, 0);
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if (irq <= 0) {
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dev_err(&pdev->dev, "no IRQ resource found\n");
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return -ENOENT;
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}
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gpio = irq_to_gpio(irq);
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if (gpio < 0) {
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dev_err(&pdev->dev, "no GPIO found for irq%d\n", irq);
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return -ENOENT;
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}
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ret = gpio_request(gpio, DRV_NAME);
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if (ret) {
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dev_err(&pdev->dev, "GPIO request failed\n");
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return ret;
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}
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/* allocate host */
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ah = ata_host_alloc(&pdev->dev, RB153_CF_MAXPORTS);
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if (!ah)
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return -ENOMEM;
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platform_set_drvdata(pdev, ah);
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info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
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if (!info)
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return -ENOMEM;
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ah->private_data = info;
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info->iobase = devm_ioremap_nocache(&pdev->dev, res->start,
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res->end - res->start + 1);
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if (!info->iobase)
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return -ENOMEM;
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ret = gpio_direction_input(gpio);
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if (ret) {
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dev_err(&pdev->dev, "unable to set GPIO direction, err=%d\n",
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ret);
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goto err_free_gpio;
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}
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rb153_pata_setup_ports(ah);
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ret = ata_host_activate(ah, irq, ata_interrupt, IRQF_TRIGGER_HIGH,
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&rb153_pata_sht);
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if (ret)
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goto err_free_gpio;
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return 0;
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err_free_gpio:
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gpio_free(gpio);
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return ret;
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}
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static __devexit int rb153_pata_driver_remove(struct platform_device *pdev)
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{
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struct ata_host *ah = platform_get_drvdata(pdev);
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struct rb153_cf_info *info = ah->private_data;
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ata_host_detach(ah);
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gpio_free(info->gpio_line);
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return 0;
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}
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static struct platform_driver rb153_pata_platform_driver = {
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.probe = rb153_pata_driver_probe,
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.remove = __devexit_p(rb153_pata_driver_remove),
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.driver = {
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.name = DRV_NAME,
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.owner = THIS_MODULE,
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},
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};
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/* ------------------------------------------------------------------------ */
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#define DRV_INFO DRV_DESC " version " DRV_VERSION
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static int __init rb153_pata_module_init(void)
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{
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printk(KERN_INFO DRV_INFO "\n");
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return platform_driver_register(&rb153_pata_platform_driver);
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}
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static void __exit rb153_pata_module_exit(void)
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{
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platform_driver_unregister(&rb153_pata_platform_driver);
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}
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MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
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MODULE_DESCRIPTION(DRV_DESC);
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MODULE_VERSION(DRV_VERSION);
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MODULE_LICENSE("GPL");
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module_init(rb153_pata_module_init);
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module_exit(rb153_pata_module_exit);
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@ -29,29 +29,32 @@
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#define ADM5120_SDRAM0_BASE 0x00000000
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#define ADM5120_SDRAM1_BASE 0x01000000
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#define ADM5120_SRAM1_BASE 0x10000000
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#define ADM5120_NAND_BASE ADM5120_SRAM1_BASE
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#define ADM5120_EXTIO0_BASE 0x10C00000
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#define ADM5120_EXTIO0_SIZE 0x00200000
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#define ADM5120_EXTIO1_BASE 0x10E00000
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#define ADM5120_EXTIO1_SIZE 0x00200000
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#define ADM5120_MPMC_BASE 0x11000000
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#define ADM5120_MPMC_SIZE 0x00200000
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#define ADM5120_USBC_BASE 0x11200000
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#define ADM5120_USBC_SIZE 0x00200000
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#define ADM5120_PCIMEM_BASE 0x11400000
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#define ADM5120_PCIMEM_SIZE 0x00100000
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#define ADM5120_PCIIO_BASE 0x11500000
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#define ADM5120_PCIIO_SIZE 0x000FFFF0
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#define ADM5120_PCICFG_ADDR 0x115FFFF0
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#define ADM5120_PCICFG_DATA 0x115FFFF8
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#define ADM5120_PCICFG_SIZE 0x00000010
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#define ADM5120_SWITCH_BASE 0x12000000
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#define ADM5120_SWITCH_SIZE 0x00200000
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#define ADM5120_INTC_BASE 0x12200000
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#define ADM5120_INTC_SIZE 0x00200000
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#define ADM5120_UART0_BASE 0x12600000
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#define ADM5120_UART1_BASE 0x12800000
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#define ADM5120_UART_SIZE 0x00200000
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#define ADM5120_SRAM0_BASE 0x1FC00000
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#define ADM5120_NAND_BASE ADM5120_SRAM1_BASE
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#define ADM5120_NAND_SIZE 0xB
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#define ADM5120_MPMC_SIZE 0x1000
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#define ADM5120_USBC_SIZE 0x84
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#define ADM5120_PCIMEM_SIZE (ADM5120_PCIIO_BASE - ADM5120_PCIMEM_BASE)
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#define ADM5120_PCIIO_SIZE (ADM5120_PCICFG_ADDR - ADM5120_PCIIO_BASE)
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#define ADM5120_PCICFG_SIZE 0x10
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#define ADM5120_SWITCH_SIZE 0x114
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#define ADM5120_INTC_SIZE 0x28
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#define ADM5120_UART_SIZE 0x20
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#define ADM5120_CLK_175 175000000
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#define ADM5120_CLK_200 200000000
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@ -0,0 +1,26 @@
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--- linux-2.6.23.9/drivers/ata/Makefile.orig 2007-11-26 18:51:43.000000000 +0100
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+++ linux-2.6.23.9/drivers/ata/Makefile 2007-12-08 18:15:07.000000000 +0100
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@@ -63,6 +63,7 @@
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obj-$(CONFIG_PATA_SCC) += pata_scc.o
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obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o
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obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o
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+obj-$(CONFIG_PATA_RB153_CF) += pata_rb153_cf.o
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# Should be last but one libata driver
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obj-$(CONFIG_ATA_GENERIC) += ata_generic.o
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# Should be last libata driver
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--- linux-2.6.23.9/drivers/ata/Kconfig.orig 2007-11-26 18:51:43.000000000 +0100
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+++ linux-2.6.23.9/drivers/ata/Kconfig 2007-12-08 18:16:43.000000000 +0100
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@@ -596,4 +596,13 @@
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|
||||
If unsure, say N.
|
||||
|
||||
+config PATA_RB153_CF
|
||||
+ tristate "RouterBOARD 153 Compact Flash support"
|
||||
+ depends on MIPS_ADM5120
|
||||
+ help
|
||||
+ This option enables support for a Compact Flash connected on
|
||||
+ the RouterBOARD 153.
|
||||
+
|
||||
+ If unsure, say N.
|
||||
+
|
||||
endif # ATA
|
||||
|
|
@ -7,7 +7,7 @@
|
|||
|
||||
define Profile/RouterBoard
|
||||
NAME:=Mikrotik RouterBoard 1xx family
|
||||
PACKAGES:=kmod-madwifi kmod-rb153-cf
|
||||
PACKAGES:=kmod-madwifi kmod-pata-rb153-cf
|
||||
endef
|
||||
|
||||
define Profile/RouterBoard/Description
|
||||
|
|
|
|||
Loading…
Reference in a new issue