diff options
Diffstat (limited to 'arch/ppc/platforms/4xx/bamboo.c')
| -rw-r--r-- | arch/ppc/platforms/4xx/bamboo.c | 442 |
1 files changed, 0 insertions, 442 deletions
diff --git a/arch/ppc/platforms/4xx/bamboo.c b/arch/ppc/platforms/4xx/bamboo.c deleted file mode 100644 index 01f20f4c14fe..000000000000 --- a/arch/ppc/platforms/4xx/bamboo.c +++ /dev/null @@ -1,442 +0,0 @@ -/* - * Bamboo board specific routines - * - * Wade Farnsworth <wfarnsworth@mvista.com> - * Copyright 2004 MontaVista Software Inc. - * - * 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. - */ - -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/reboot.h> -#include <linux/pci.h> -#include <linux/kdev_t.h> -#include <linux/types.h> -#include <linux/major.h> -#include <linux/blkdev.h> -#include <linux/console.h> -#include <linux/delay.h> -#include <linux/initrd.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> -#include <linux/tty.h> -#include <linux/serial.h> -#include <linux/serial_core.h> -#include <linux/serial_8250.h> -#include <linux/ethtool.h> - -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/dma.h> -#include <asm/io.h> -#include <asm/machdep.h> -#include <asm/ocp.h> -#include <asm/pci-bridge.h> -#include <asm/time.h> -#include <asm/todc.h> -#include <asm/bootinfo.h> -#include <asm/ppc4xx_pic.h> -#include <asm/ppcboot.h> - -#include <syslib/gen550.h> -#include <syslib/ibm440gx_common.h> - -extern bd_t __res; - -static struct ibm44x_clocks clocks __initdata; - -/* - * Bamboo external IRQ triggering/polarity settings - */ -unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = { - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ0: Ethernet transceiver */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ1: Expansion connector */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ2: PCI slot 0 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ3: PCI slot 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ4: PCI slot 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ5: PCI slot 3 */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* IRQ6: SMI pushbutton */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ7: EXT */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ8: EXT */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ9: EXT */ -}; - -static void __init -bamboo_calibrate_decr(void) -{ - unsigned int freq; - - if (mfspr(SPRN_CCR1) & CCR1_TCS) - freq = BAMBOO_TMRCLK; - else - freq = clocks.cpu; - - ibm44x_calibrate_decr(freq); - -} - -static int -bamboo_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "vendor\t\t: IBM\n"); - seq_printf(m, "machine\t\t: PPC440EP EVB (Bamboo)\n"); - - return 0; -} - -static inline int -bamboo_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - { 28, 28, 28, 28 }, /* IDSEL 1 - PCI Slot 0 */ - { 27, 27, 27, 27 }, /* IDSEL 2 - PCI Slot 1 */ - { 26, 26, 26, 26 }, /* IDSEL 3 - PCI Slot 2 */ - { 25, 25, 25, 25 }, /* IDSEL 4 - PCI Slot 3 */ - }; - - const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -} - -static void __init bamboo_set_emacdata(void) -{ - u8 * base_addr; - struct ocp_def *def; - struct ocp_func_emac_data *emacdata; - u8 val; - int mode; - u32 excluded = 0; - - base_addr = ioremap64(BAMBOO_FPGA_SELECTION1_REG_ADDR, 16); - val = readb(base_addr); - iounmap((void *) base_addr); - if (BAMBOO_SEL_MII(val)) - mode = PHY_MODE_MII; - else if (BAMBOO_SEL_RMII(val)) - mode = PHY_MODE_RMII; - else - mode = PHY_MODE_SMII; - - /* - * SW2 on the Bamboo is used for ethernet configuration and is accessed - * via the CONFIG2 register in the FPGA. If the ANEG pin is set, - * overwrite the supported features with the settings in SW2. - * - * This is used as a workaround for the improperly biased RJ-45 sockets - * on the Rev. 0 Bamboo. By default only 10baseT is functional. - * Removing inductors L17 and L18 from the board allows 100baseT, but - * disables 10baseT. The Rev. 1 has no such limitations. - */ - - base_addr = ioremap64(BAMBOO_FPGA_CONFIG2_REG_ADDR, 8); - val = readb(base_addr); - iounmap((void *) base_addr); - if (!BAMBOO_AUTONEGOTIATE(val)) { - excluded |= SUPPORTED_Autoneg; - if (BAMBOO_FORCE_100Mbps(val)) { - excluded |= SUPPORTED_10baseT_Full; - excluded |= SUPPORTED_10baseT_Half; - if (BAMBOO_FULL_DUPLEX_EN(val)) - excluded |= SUPPORTED_100baseT_Half; - else - excluded |= SUPPORTED_100baseT_Full; - } else { - excluded |= SUPPORTED_100baseT_Full; - excluded |= SUPPORTED_100baseT_Half; - if (BAMBOO_FULL_DUPLEX_EN(val)) - excluded |= SUPPORTED_10baseT_Half; - else - excluded |= SUPPORTED_10baseT_Full; - } - } - - /* Set mac_addr, phy mode and unsupported phy features for each EMAC */ - - def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 0); - emacdata = def->additions; - memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6); - emacdata->phy_mode = mode; - emacdata->phy_feat_exc = excluded; - - def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 1); - emacdata = def->additions; - memcpy(emacdata->mac_addr, __res.bi_enet1addr, 6); - emacdata->phy_mode = mode; - emacdata->phy_feat_exc = excluded; -} - -static int -bamboo_exclude_device(unsigned char bus, unsigned char devfn) -{ - return (bus == 0 && devfn == 0); -} - -#define PCI_READW(offset) \ - (readw((void *)((u32)pci_reg_base+offset))) - -#define PCI_WRITEW(value, offset) \ - (writew(value, (void *)((u32)pci_reg_base+offset))) - -#define PCI_WRITEL(value, offset) \ - (writel(value, (void *)((u32)pci_reg_base+offset))) - -static void __init -bamboo_setup_pci(void) -{ - void *pci_reg_base; - unsigned long memory_size; - memory_size = ppc_md.find_end_of_memory(); - - pci_reg_base = ioremap64(BAMBOO_PCIL0_BASE, BAMBOO_PCIL0_SIZE); - - /* Enable PCI I/O, Mem, and Busmaster cycles */ - PCI_WRITEW(PCI_READW(PCI_COMMAND) | - PCI_COMMAND_MEMORY | - PCI_COMMAND_MASTER, PCI_COMMAND); - - /* Disable region first */ - PCI_WRITEL(0, BAMBOO_PCIL0_PMM0MA); - - /* PLB starting addr: 0x00000000A0000000 */ - PCI_WRITEL(BAMBOO_PCI_PHY_MEM_BASE, BAMBOO_PCIL0_PMM0LA); - - /* PCI start addr, 0xA0000000 (PCI Address) */ - PCI_WRITEL(BAMBOO_PCI_MEM_BASE, BAMBOO_PCIL0_PMM0PCILA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM0PCIHA); - - /* Enable no pre-fetch, enable region */ - PCI_WRITEL(((0xffffffff - - (BAMBOO_PCI_UPPER_MEM - BAMBOO_PCI_MEM_BASE)) | 0x01), - BAMBOO_PCIL0_PMM0MA); - - /* Disable region one */ - PCI_WRITEL(0, BAMBOO_PCIL0_PMM1MA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM1LA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM1PCILA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM1PCIHA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM1MA); - - /* Disable region two */ - PCI_WRITEL(0, BAMBOO_PCIL0_PMM2MA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM2LA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM2PCILA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM2PCIHA); - PCI_WRITEL(0, BAMBOO_PCIL0_PMM2MA); - - /* Now configure the PCI->PLB windows, we only use PTM1 - * - * For Inbound flow, set the window size to all available memory - * This is required because if size is smaller, - * then Eth/PCI DD would fail as PCI card not able to access - * the memory allocated by DD. - */ - - PCI_WRITEL(0, BAMBOO_PCIL0_PTM1MS); /* disabled region 1 */ - PCI_WRITEL(0, BAMBOO_PCIL0_PTM1LA); /* begin of address map */ - - memory_size = 1 << fls(memory_size - 1); - - /* Size low + Enabled */ - PCI_WRITEL((0xffffffff - (memory_size - 1)) | 0x1, BAMBOO_PCIL0_PTM1MS); - - eieio(); - iounmap(pci_reg_base); -} - -static void __init -bamboo_setup_hose(void) -{ - unsigned int bar_response, bar; - struct pci_controller *hose; - - bamboo_setup_pci(); - - hose = pcibios_alloc_controller(); - - if (!hose) - return; - - hose->first_busno = 0; - hose->last_busno = 0xff; - - hose->pci_mem_offset = BAMBOO_PCI_MEM_OFFSET; - - pci_init_resource(&hose->io_resource, - BAMBOO_PCI_LOWER_IO, - BAMBOO_PCI_UPPER_IO, - IORESOURCE_IO, - "PCI host bridge"); - - pci_init_resource(&hose->mem_resources[0], - BAMBOO_PCI_LOWER_MEM, - BAMBOO_PCI_UPPER_MEM, - IORESOURCE_MEM, - "PCI host bridge"); - - ppc_md.pci_exclude_device = bamboo_exclude_device; - - hose->io_space.start = BAMBOO_PCI_LOWER_IO; - hose->io_space.end = BAMBOO_PCI_UPPER_IO; - hose->mem_space.start = BAMBOO_PCI_LOWER_MEM; - hose->mem_space.end = BAMBOO_PCI_UPPER_MEM; - isa_io_base = - (unsigned long)ioremap64(BAMBOO_PCI_IO_BASE, BAMBOO_PCI_IO_SIZE); - hose->io_base_virt = (void *)isa_io_base; - - setup_indirect_pci(hose, - BAMBOO_PCI_CFGA_PLB32, - BAMBOO_PCI_CFGD_PLB32); - hose->set_cfg_type = 1; - - /* Zero config bars */ - for (bar = PCI_BASE_ADDRESS_1; bar <= PCI_BASE_ADDRESS_2; bar += 4) { - early_write_config_dword(hose, hose->first_busno, - PCI_FUNC(hose->first_busno), bar, - 0x00000000); - early_read_config_dword(hose, hose->first_busno, - PCI_FUNC(hose->first_busno), bar, - &bar_response); - } - - hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); - - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = bamboo_map_irq; -} - -TODC_ALLOC(); - -static void __init -bamboo_early_serial_map(void) -{ - struct uart_port port; - - /* Setup ioremapped serial port access */ - memset(&port, 0, sizeof(port)); - port.membase = ioremap64(PPC440EP_UART0_ADDR, 8); - port.irq = 0; - port.uartclk = clocks.uart0; - port.regshift = 0; - port.iotype = UPIO_MEM; - port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; - port.line = 0; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 0 failed\n"); - } - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Configure debug serial access */ - gen550_init(0, &port); -#endif - - port.membase = ioremap64(PPC440EP_UART1_ADDR, 8); - port.irq = 1; - port.uartclk = clocks.uart1; - port.line = 1; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 1 failed\n"); - } - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Configure debug serial access */ - gen550_init(1, &port); -#endif - - port.membase = ioremap64(PPC440EP_UART2_ADDR, 8); - port.irq = 3; - port.uartclk = clocks.uart2; - port.line = 2; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 2 failed\n"); - } - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Configure debug serial access */ - gen550_init(2, &port); -#endif - - port.membase = ioremap64(PPC440EP_UART3_ADDR, 8); - port.irq = 4; - port.uartclk = clocks.uart3; - port.line = 3; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 3 failed\n"); - } -} - -static void __init -bamboo_setup_arch(void) -{ - - bamboo_set_emacdata(); - - ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200); - ocp_sys_info.opb_bus_freq = clocks.opb; - - /* Setup TODC access */ - TODC_INIT(TODC_TYPE_DS1743, - 0, - 0, - ioremap64(BAMBOO_RTC_ADDR, BAMBOO_RTC_SIZE), - 8); - - /* init to some ~sane value until calibrate_delay() runs */ - loops_per_jiffy = 50000000/HZ; - - /* Setup PCI host bridge */ - bamboo_setup_hose(); - -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) - ROOT_DEV = Root_RAM0; - else -#endif -#ifdef CONFIG_ROOT_NFS - ROOT_DEV = Root_NFS; -#else - ROOT_DEV = Root_HDA1; -#endif - - bamboo_early_serial_map(); - - /* Identify the system */ - printk("IBM Bamboo port (MontaVista Software, Inc. (source@mvista.com))\n"); -} - -void __init platform_init(unsigned long r3, unsigned long r4, - unsigned long r5, unsigned long r6, unsigned long r7) -{ - ibm44x_platform_init(r3, r4, r5, r6, r7); - - ppc_md.setup_arch = bamboo_setup_arch; - ppc_md.show_cpuinfo = bamboo_show_cpuinfo; - ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */ - - ppc_md.calibrate_decr = bamboo_calibrate_decr; - ppc_md.time_init = todc_time_init; - ppc_md.set_rtc_time = todc_set_rtc_time; - ppc_md.get_rtc_time = todc_get_rtc_time; - - ppc_md.nvram_read_val = todc_direct_read_val; - ppc_md.nvram_write_val = todc_direct_write_val; -#ifdef CONFIG_KGDB - ppc_md.early_serial_map = bamboo_early_serial_map; -#endif -} - |