diff options
Diffstat (limited to 'arch/mips/pnx833x/common/platform.c')
| -rw-r--r-- | arch/mips/pnx833x/common/platform.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/arch/mips/pnx833x/common/platform.c b/arch/mips/pnx833x/common/platform.c new file mode 100644 index 00000000000..01f8345a206 --- /dev/null +++ b/arch/mips/pnx833x/common/platform.c @@ -0,0 +1,319 @@ +/* + * 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(Prefered 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 = { + .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); 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