| /* |
| * arch/arm/mach-orion/common.c |
| * |
| * Core functions for Marvell Orion System On Chip |
| * |
| * Maintainer: Tzachi Perelstein <tzachi@marvell.com> |
| * |
| * This file is licensed under the terms of the GNU General Public |
| * License version 2. This program is licensed "as is" without any |
| * warranty of any kind, whether express or implied. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/serial_8250.h> |
| #include <linux/mbus.h> |
| #include <linux/mv643xx_eth.h> |
| #include <linux/mv643xx_i2c.h> |
| #include <linux/ata_platform.h> |
| #include <asm/page.h> |
| #include <asm/setup.h> |
| #include <asm/timex.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/time.h> |
| #include <asm/arch/hardware.h> |
| #include <asm/arch/orion.h> |
| #include <asm/plat-orion/ehci-orion.h> |
| #include <asm/plat-orion/orion_nand.h> |
| #include <asm/plat-orion/time.h> |
| #include "common.h" |
| |
| /***************************************************************************** |
| * I/O Address Mapping |
| ****************************************************************************/ |
| static struct map_desc orion_io_desc[] __initdata = { |
| { |
| .virtual = ORION_REGS_VIRT_BASE, |
| .pfn = __phys_to_pfn(ORION_REGS_PHYS_BASE), |
| .length = ORION_REGS_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = ORION_PCIE_IO_VIRT_BASE, |
| .pfn = __phys_to_pfn(ORION_PCIE_IO_PHYS_BASE), |
| .length = ORION_PCIE_IO_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = ORION_PCI_IO_VIRT_BASE, |
| .pfn = __phys_to_pfn(ORION_PCI_IO_PHYS_BASE), |
| .length = ORION_PCI_IO_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = ORION_PCIE_WA_VIRT_BASE, |
| .pfn = __phys_to_pfn(ORION_PCIE_WA_PHYS_BASE), |
| .length = ORION_PCIE_WA_SIZE, |
| .type = MT_DEVICE |
| }, |
| }; |
| |
| void __init orion_map_io(void) |
| { |
| iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc)); |
| } |
| |
| /***************************************************************************** |
| * UART |
| ****************************************************************************/ |
| |
| static struct resource orion_uart_resources[] = { |
| { |
| .start = UART0_PHYS_BASE, |
| .end = UART0_PHYS_BASE + 0xff, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_ORION_UART0, |
| .end = IRQ_ORION_UART0, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = UART1_PHYS_BASE, |
| .end = UART1_PHYS_BASE + 0xff, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_ORION_UART1, |
| .end = IRQ_ORION_UART1, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct plat_serial8250_port orion_uart_data[] = { |
| { |
| .mapbase = UART0_PHYS_BASE, |
| .membase = (char *)UART0_VIRT_BASE, |
| .irq = IRQ_ORION_UART0, |
| .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, |
| .iotype = UPIO_MEM, |
| .regshift = 2, |
| .uartclk = ORION_TCLK, |
| }, |
| { |
| .mapbase = UART1_PHYS_BASE, |
| .membase = (char *)UART1_VIRT_BASE, |
| .irq = IRQ_ORION_UART1, |
| .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, |
| .iotype = UPIO_MEM, |
| .regshift = 2, |
| .uartclk = ORION_TCLK, |
| }, |
| { }, |
| }; |
| |
| static struct platform_device orion_uart = { |
| .name = "serial8250", |
| .id = PLAT8250_DEV_PLATFORM, |
| .dev = { |
| .platform_data = orion_uart_data, |
| }, |
| .resource = orion_uart_resources, |
| .num_resources = ARRAY_SIZE(orion_uart_resources), |
| }; |
| |
| /******************************************************************************* |
| * USB Controller - 2 interfaces |
| ******************************************************************************/ |
| |
| static struct resource orion_ehci0_resources[] = { |
| { |
| .start = ORION_USB0_PHYS_BASE, |
| .end = ORION_USB0_PHYS_BASE + SZ_4K, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_ORION_USB0_CTRL, |
| .end = IRQ_ORION_USB0_CTRL, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct resource orion_ehci1_resources[] = { |
| { |
| .start = ORION_USB1_PHYS_BASE, |
| .end = ORION_USB1_PHYS_BASE + SZ_4K, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_ORION_USB1_CTRL, |
| .end = IRQ_ORION_USB1_CTRL, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct orion_ehci_data orion_ehci_data = { |
| .dram = &orion_mbus_dram_info, |
| }; |
| |
| static u64 ehci_dmamask = 0xffffffffUL; |
| |
| static struct platform_device orion_ehci0 = { |
| .name = "orion-ehci", |
| .id = 0, |
| .dev = { |
| .dma_mask = &ehci_dmamask, |
| .coherent_dma_mask = 0xffffffff, |
| .platform_data = &orion_ehci_data, |
| }, |
| .resource = orion_ehci0_resources, |
| .num_resources = ARRAY_SIZE(orion_ehci0_resources), |
| }; |
| |
| static struct platform_device orion_ehci1 = { |
| .name = "orion-ehci", |
| .id = 1, |
| .dev = { |
| .dma_mask = &ehci_dmamask, |
| .coherent_dma_mask = 0xffffffff, |
| .platform_data = &orion_ehci_data, |
| }, |
| .resource = orion_ehci1_resources, |
| .num_resources = ARRAY_SIZE(orion_ehci1_resources), |
| }; |
| |
| /***************************************************************************** |
| * Gigabit Ethernet port |
| * (The Orion and Discovery (MV643xx) families use the same Ethernet driver) |
| ****************************************************************************/ |
| |
| static struct resource orion_eth_shared_resources[] = { |
| { |
| .start = ORION_ETH_PHYS_BASE + 0x2000, |
| .end = ORION_ETH_PHYS_BASE + 0x3fff, |
| .flags = IORESOURCE_MEM, |
| }, |
| }; |
| |
| static struct platform_device orion_eth_shared = { |
| .name = MV643XX_ETH_SHARED_NAME, |
| .id = 0, |
| .num_resources = 1, |
| .resource = orion_eth_shared_resources, |
| }; |
| |
| static struct resource orion_eth_resources[] = { |
| { |
| .name = "eth irq", |
| .start = IRQ_ORION_ETH_SUM, |
| .end = IRQ_ORION_ETH_SUM, |
| .flags = IORESOURCE_IRQ, |
| } |
| }; |
| |
| static struct platform_device orion_eth = { |
| .name = MV643XX_ETH_NAME, |
| .id = 0, |
| .num_resources = 1, |
| .resource = orion_eth_resources, |
| }; |
| |
| void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data) |
| { |
| orion_eth.dev.platform_data = eth_data; |
| platform_device_register(&orion_eth_shared); |
| platform_device_register(&orion_eth); |
| } |
| |
| /***************************************************************************** |
| * I2C controller |
| * (The Orion and Discovery (MV643xx) families share the same I2C controller) |
| ****************************************************************************/ |
| |
| static struct mv64xxx_i2c_pdata orion_i2c_pdata = { |
| .freq_m = 8, /* assumes 166 MHz TCLK */ |
| .freq_n = 3, |
| .timeout = 1000, /* Default timeout of 1 second */ |
| }; |
| |
| static struct resource orion_i2c_resources[] = { |
| { |
| .name = "i2c base", |
| .start = I2C_PHYS_BASE, |
| .end = I2C_PHYS_BASE + 0x20 -1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .name = "i2c irq", |
| .start = IRQ_ORION_I2C, |
| .end = IRQ_ORION_I2C, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device orion_i2c = { |
| .name = MV64XXX_I2C_CTLR_NAME, |
| .id = 0, |
| .num_resources = ARRAY_SIZE(orion_i2c_resources), |
| .resource = orion_i2c_resources, |
| .dev = { |
| .platform_data = &orion_i2c_pdata, |
| }, |
| }; |
| |
| /***************************************************************************** |
| * Sata port |
| ****************************************************************************/ |
| static struct resource orion_sata_resources[] = { |
| { |
| .name = "sata base", |
| .start = ORION_SATA_PHYS_BASE, |
| .end = ORION_SATA_PHYS_BASE + 0x5000 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .name = "sata irq", |
| .start = IRQ_ORION_SATA, |
| .end = IRQ_ORION_SATA, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device orion_sata = { |
| .name = "sata_mv", |
| .id = 0, |
| .dev = { |
| .coherent_dma_mask = 0xffffffff, |
| }, |
| .num_resources = ARRAY_SIZE(orion_sata_resources), |
| .resource = orion_sata_resources, |
| }; |
| |
| void __init orion_sata_init(struct mv_sata_platform_data *sata_data) |
| { |
| sata_data->dram = &orion_mbus_dram_info; |
| orion_sata.dev.platform_data = sata_data; |
| platform_device_register(&orion_sata); |
| } |
| |
| /***************************************************************************** |
| * Time handling |
| ****************************************************************************/ |
| |
| static void orion_timer_init(void) |
| { |
| orion_time_init(IRQ_ORION_BRIDGE, ORION_TCLK); |
| } |
| |
| struct sys_timer orion_timer = { |
| .init = orion_timer_init, |
| }; |
| |
| /***************************************************************************** |
| * General |
| ****************************************************************************/ |
| |
| /* |
| * Identify device ID and rev from PCIE configuration header space '0'. |
| */ |
| static void __init orion_id(u32 *dev, u32 *rev, char **dev_name) |
| { |
| orion_pcie_id(dev, rev); |
| |
| if (*dev == MV88F5281_DEV_ID) { |
| if (*rev == MV88F5281_REV_D2) { |
| *dev_name = "MV88F5281-D2"; |
| } else if (*rev == MV88F5281_REV_D1) { |
| *dev_name = "MV88F5281-D1"; |
| } else { |
| *dev_name = "MV88F5281-Rev-Unsupported"; |
| } |
| } else if (*dev == MV88F5182_DEV_ID) { |
| if (*rev == MV88F5182_REV_A2) { |
| *dev_name = "MV88F5182-A2"; |
| } else { |
| *dev_name = "MV88F5182-Rev-Unsupported"; |
| } |
| } else if (*dev == MV88F5181_DEV_ID) { |
| if (*rev == MV88F5181_REV_B1) { |
| *dev_name = "MV88F5181-Rev-B1"; |
| } else { |
| *dev_name = "MV88F5181-Rev-Unsupported"; |
| } |
| } else { |
| *dev_name = "Device-Unknown"; |
| } |
| } |
| |
| void __init orion_init(void) |
| { |
| char *dev_name; |
| u32 dev, rev; |
| |
| orion_id(&dev, &rev, &dev_name); |
| printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION_TCLK); |
| |
| /* |
| * Setup Orion address map |
| */ |
| orion_setup_cpu_mbus_bridge(); |
| orion_setup_eth_wins(); |
| |
| /* |
| * REgister devices |
| */ |
| platform_device_register(&orion_uart); |
| platform_device_register(&orion_ehci0); |
| if (dev == MV88F5182_DEV_ID) |
| platform_device_register(&orion_ehci1); |
| platform_device_register(&orion_i2c); |
| } |
| |
| /* |
| * Many orion-based systems have buggy bootloader implementations. |
| * This is a common fixup for bogus memory tags. |
| */ |
| void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t, |
| char **from, struct meminfo *meminfo) |
| { |
| for (; t->hdr.size; t = tag_next(t)) |
| if (t->hdr.tag == ATAG_MEM && |
| (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK || |
| t->u.mem.start & ~PAGE_MASK)) { |
| printk(KERN_WARNING |
| "Clearing invalid memory bank %dKB@0x%08x\n", |
| t->u.mem.size / 1024, t->u.mem.start); |
| t->hdr.tag = 0; |
| } |
| } |