/*
* platform.c: platform support for PNX833X.
*
* Copyright 2008 NXP Semiconductors
* Chris Steel <chris.steel@nxp.com>
* Daniel Laird <daniel.j.laird@nxp.com>
*
* Based on software written by:
* Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/resource.h>
#include <linux/serial.h>
#include <linux/serial_pnx8xxx.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#ifdef CONFIG_I2C_PNX0105
/* Until i2c driver available in kernel.*/
#include <linux/i2c-pnx0105.h>
#endif
#include <irq.h>
#include <irq-mapping.h>
#include <pnx833x.h>
static u64 uart_dmamask = DMA_BIT_MASK(32);
static struct resource pnx833x_uart_resources[] = {
[0] = {
.start = PNX833X_UART0_PORTS_START,
.end = PNX833X_UART0_PORTS_END,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PNX833X_PIC_UART0_INT,
.end = PNX833X_PIC_UART0_INT,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = PNX833X_UART1_PORTS_START,
.end = PNX833X_UART1_PORTS_END,
.flags = IORESOURCE_MEM,
},
[3] = {
.start = PNX833X_PIC_UART1_INT,
.end = PNX833X_PIC_UART1_INT,
.flags = IORESOURCE_IRQ,
},
};
struct pnx8xxx_port pnx8xxx_ports[] = {
[0] = {
.port = {
.type = PORT_PNX8XXX,
.iotype = UPIO_MEM,
.membase = (void __iomem *)PNX833X_UART0_PORTS_START,
.mapbase = PNX833X_UART0_PORTS_START,
.irq = PNX833X_PIC_UART0_INT,
.uartclk = 3692300,
.fifosize = 16,
.flags = UPF_BOOT_AUTOCONF,
.line = 0,
},
},
[1] = {
.port = {
.type = PORT_PNX8XXX,
.iotype = UPIO_MEM,
.membase = (void __iomem *)PNX833X_UART1_PORTS_START,
.mapbase = PNX833X_UART1_PORTS_START,
.irq = PNX833X_PIC_UART1_INT,
.uartclk = 3692300,
.fifosize = 16,
.flags = UPF_BOOT_AUTOCONF,
.line = 1,
},
},
};
static struct platform_device pnx833x_uart_device = {
.name = "pnx8xxx-uart",
.id = -1,
.dev = {
.dma_mask = &uart_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = pnx8xxx_ports,
},
.num_resources = ARRAY_SIZE(pnx833x_uart_resources),
.resource = pnx833x_uart_resources,
};
static u64 ehci_dmamask = DMA_BIT_MASK(32);
static struct resource pnx833x_usb_ehci_resources[] = {
[0] = {
.start = PNX833X_USB_PORTS_START,
.end = PNX833X_USB_PORTS_END,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PNX833X_PIC_USB_INT,
.end = PNX833X_PIC_USB_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device pnx833x_usb_ehci_device = {
.name = "pnx833x-ehci",
.id = -1,
.dev = {
.dma_mask = &ehci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(pnx833x_usb_ehci_resources),
.resource = pnx833x_usb_ehci_resources,
};
#ifdef CONFIG_I2C_PNX0105
static struct resource pnx833x_i2c0_resources[] = {
{
.start = PNX833X_I2C0_PORTS_START,
.end = PNX833X_I2C0_PORTS_END,
.flags = IORESOURCE_MEM,
},
{
.start = PNX833X_PIC_I2C0_INT,
.end = PNX833X_PIC_I2C0_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct resource pnx833x_i2c1_resources[] = {
{
.start = PNX833X_I2C1_PORTS_START,
.end = PNX833X_I2C1_PORTS_END,
.flags = IORESOURCE_MEM,
},
{
.start = PNX833X_PIC_I2C1_INT,
.end = PNX833X_PIC_I2C1_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct i2c_pnx0105_dev pnx833x_i2c_dev[] = {
{
.base = PNX833X_I2C0_PORTS_START,
.irq = -1, /* should be PNX833X_PIC_I2C0_INT but polling is faster */
.clock = 6, /* 0 == 400 kHz, 4 == 100 kHz(Maximum HDMI), 6 = 50kHz(Preferred HDCP) */
.bus_addr = 0, /* no slave support */
},
{
.base = PNX833X_I2C1_PORTS_START,
.irq = -1, /* on high freq, polling is faster */
/*.irq = PNX833X_PIC_I2C1_INT,*/
.clock = 4, /* 0 == 400 kHz, 4 == 100 kHz. 100 kHz seems a safe default for now */
.bus_addr = 0, /* no slave support */
},
};
static struct platform_device pnx833x_i2c0_device = {
.name = "i2c-pnx0105",
.id = 0,
.dev = {
.platform_data = &pnx833x_i2c_dev[0],
},
.num_resources = ARRAY_SIZE(pnx833x_i2c0_resources),
.resource = pnx833x_i2c0_resources,
};
static struct platform_device pnx833x_i2c1_device = {
.name = "i2c-pnx0105",
.id = 1,
.dev = {
.platform_data = &pnx833x_i2c_dev[1],
},
.num_resources = ARRAY_SIZE(pnx833x_i2c1_resources),
.resource = pnx833x_i2c1_resources,
};
#endif
static u64 ethernet_dmamask = DMA_BIT_MASK(32);
static struct resource pnx833x_ethernet_resources[] = {
[0] = {
.start = PNX8335_IP3902_PORTS_START,
.end = PNX8335_IP3902_PORTS_END,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PNX8335_PIC_ETHERNET_INT,
.end = PNX8335_PIC_ETHERNET_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device pnx833x_ethernet_device = {
.name = "ip3902-eth",
.id = -1,
.dev = {
.dma_mask = ðernet_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(pnx833x_ethernet_resources),
.resource = pnx833x_ethernet_resources,
};
static struct resource pnx833x_sata_resources[] = {
[0] = {
.start = PNX8335_SATA_PORTS_START,
.end = PNX8335_SATA_PORTS_END,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PNX8335_PIC_SATA_INT,
.end = PNX8335_PIC_SATA_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device pnx833x_sata_device = {
.name = "pnx833x-sata",
.id = -1,
.num_resources = ARRAY_SIZE(pnx833x_sata_resources),
.resource = pnx833x_sata_resources,
};
static const char *part_probes[] = {
"cmdlinepart",
NULL
};
static void
pnx833x_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtd->priv;
unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
if (cmd == NAND_CMD_NONE)
return;
if (ctrl & NAND_CLE)
writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_CLE_MASK));
else
writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_ALE_MASK));
}
static struct platform_nand_data pnx833x_flash_nand_data = {
.chip = {
.nr_chips = 1,
.chip_delay = 25,
.part_probe_types = part_probes,
},
.ctrl = {
.cmd_ctrl = pnx833x_flash_nand_cmd_ctrl
}
};
/*
* Set start to be the correct address (PNX8335_NAND_BASE with no 0xb!!),
* 12 bytes more seems to be the standard that allows for NAND access.
*/
static struct resource pnx833x_flash_nand_resource = {
.start = PNX8335_NAND_BASE,
.end = PNX8335_NAND_BASE + 12,
.flags = IORESOURCE_MEM,
};
static struct platform_device pnx833x_flash_nand = {
.name = "gen_nand",
.id = -1,
.num_resources = 1,
.resource = &pnx833x_flash_nand_resource,
.dev = {
.platform_data = &pnx833x_flash_nand_data,
},
};
static struct platform_device *pnx833x_platform_devices[] __initdata = {
&pnx833x_uart_device,
&pnx833x_usb_ehci_device,
#ifdef CONFIG_I2C_PNX0105
&pnx833x_i2c0_device,
&pnx833x_i2c1_device,
#endif
&pnx833x_ethernet_device,
&pnx833x_sata_device,
&pnx833x_flash_nand,
};
static int __init pnx833x_platform_init(void)
{
int res;
res = platform_add_devices(pnx833x_platform_devices,
ARRAY_SIZE(pnx833x_platform_devices));
return res;
}
arch_initcall(pnx833x_platform_init);