.icache_bsize = 32,
.dcache_bsize = 32,
},
+ { /* 440SPe Rev. A */
+ .pvr_mask = 0xff000fff,
+ .pvr_value = 0x53000890,
+ .cpu_name = "440SPe Rev. A",
+ .cpu_features = CPU_FTR_SPLIT_ID_CACHE |
+ CPU_FTR_USE_TB,
+ .cpu_user_features = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ },
#endif /* CONFIG_44x */
#ifdef CONFIG_FSL_BOOKE
{ /* e200z5 */
depends on LUAN
default y
+config 440SPE
+ bool
+ default n
+
config 440
bool
- depends on 440GP || 440SP || 440EP
+ depends on 440GP || 440SP || 440SPE || 440EP
default y
config 440A
config IBM_EMAC4
bool
- depends on 440GX || 440SP
+ depends on 440GX || 440SP || 440SPE
default y
config BIOS_FIXUP
obj-$(CONFIG_440GP) += ibm440gp.o
obj-$(CONFIG_440GX) += ibm440gx.o
obj-$(CONFIG_440SP) += ibm440sp.o
+obj-$(CONFIG_440SPE) += ppc440spe.o
obj-$(CONFIG_405EP) += ibm405ep.o
obj-$(CONFIG_405GPR) += ibm405gpr.o
obj-$(CONFIG_VIRTEX_II_PRO) += virtex-ii_pro.o
--- /dev/null
+/*
+ * arch/ppc/platforms/4xx/ppc440spe.c
+ *
+ * PPC440SPe I/O descriptions
+ *
+ * Roland Dreier <rolandd@cisco.com>
+ * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ *
+ * Matt Porter <mporter@kernel.crashing.org>
+ * Copyright 2002-2005 MontaVista Software Inc.
+ *
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ * Copyright (c) 2003, 2004 Zultys Technologies
+ *
+ * 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/init.h>
+#include <linux/module.h>
+#include <platforms/4xx/ppc440spe.h>
+#include <asm/ocp.h>
+#include <asm/ppc4xx_pic.h>
+
+static struct ocp_func_emac_data ppc440spe_emac0_def = {
+ .rgmii_idx = -1, /* No RGMII */
+ .rgmii_mux = -1, /* No RGMII */
+ .zmii_idx = -1, /* No ZMII */
+ .zmii_mux = -1, /* No ZMII */
+ .mal_idx = 0, /* MAL device index */
+ .mal_rx_chan = 0, /* MAL rx channel number */
+ .mal_tx_chan = 0, /* MAL tx channel number */
+ .wol_irq = 61, /* WOL interrupt number */
+ .mdio_idx = -1, /* No shared MDIO */
+ .tah_idx = -1, /* No TAH */
+};
+OCP_SYSFS_EMAC_DATA()
+
+static struct ocp_func_mal_data ppc440spe_mal0_def = {
+ .num_tx_chans = 1, /* Number of TX channels */
+ .num_rx_chans = 1, /* Number of RX channels */
+ .txeob_irq = 38, /* TX End Of Buffer IRQ */
+ .rxeob_irq = 39, /* RX End Of Buffer IRQ */
+ .txde_irq = 34, /* TX Descriptor Error IRQ */
+ .rxde_irq = 35, /* RX Descriptor Error IRQ */
+ .serr_irq = 33, /* MAL System Error IRQ */
+ .dcr_base = DCRN_MAL_BASE /* MAL0_CFG DCR number */
+};
+OCP_SYSFS_MAL_DATA()
+
+static struct ocp_func_iic_data ppc440spe_iic0_def = {
+ .fast_mode = 0, /* Use standad mode (100Khz) */
+};
+
+static struct ocp_func_iic_data ppc440spe_iic1_def = {
+ .fast_mode = 0, /* Use standad mode (100Khz) */
+};
+OCP_SYSFS_IIC_DATA()
+
+struct ocp_def core_ocp[] = {
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_16550,
+ .index = 0,
+ .paddr = PPC440SPE_UART0_ADDR,
+ .irq = UART0_INT,
+ .pm = IBM_CPM_UART0,
+ },
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_16550,
+ .index = 1,
+ .paddr = PPC440SPE_UART1_ADDR,
+ .irq = UART1_INT,
+ .pm = IBM_CPM_UART1,
+ },
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_16550,
+ .index = 2,
+ .paddr = PPC440SPE_UART2_ADDR,
+ .irq = UART2_INT,
+ .pm = IBM_CPM_UART2,
+ },
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_IIC,
+ .index = 0,
+ .paddr = 0x00000004f0000400ULL,
+ .irq = 2,
+ .pm = IBM_CPM_IIC0,
+ .additions = &ppc440spe_iic0_def,
+ .show = &ocp_show_iic_data
+ },
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_IIC,
+ .index = 1,
+ .paddr = 0x00000004f0000500ULL,
+ .irq = 3,
+ .pm = IBM_CPM_IIC1,
+ .additions = &ppc440spe_iic1_def,
+ .show = &ocp_show_iic_data
+ },
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_GPIO,
+ .index = 0,
+ .paddr = 0x00000004f0000700ULL,
+ .irq = OCP_IRQ_NA,
+ .pm = IBM_CPM_GPIO0,
+ },
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_MAL,
+ .paddr = OCP_PADDR_NA,
+ .irq = OCP_IRQ_NA,
+ .pm = OCP_CPM_NA,
+ .additions = &ppc440spe_mal0_def,
+ .show = &ocp_show_mal_data,
+ },
+ { .vendor = OCP_VENDOR_IBM,
+ .function = OCP_FUNC_EMAC,
+ .index = 0,
+ .paddr = 0x00000004f0000800ULL,
+ .irq = 60,
+ .pm = OCP_CPM_NA,
+ .additions = &ppc440spe_emac0_def,
+ .show = &ocp_show_emac_data,
+ },
+ { .vendor = OCP_VENDOR_INVALID
+ }
+};
+
+/* Polarity and triggering settings for internal interrupt sources */
+struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
+ { .polarity = 0xffffffff,
+ .triggering = 0x010f0004,
+ .ext_irq_mask = 0x00000000,
+ },
+ { .polarity = 0xffffffff,
+ .triggering = 0x001f8040,
+ .ext_irq_mask = 0x00007c30, /* IRQ6 - IRQ7, IRQ8 - IRQ12 */
+ },
+ { .polarity = 0xffffffff,
+ .triggering = 0x00000000,
+ .ext_irq_mask = 0x000000fc, /* IRQ0 - IRQ5 */
+ },
+ { .polarity = 0xffffffff,
+ .triggering = 0x00000000,
+ .ext_irq_mask = 0x00000000,
+ },
+};
--- /dev/null
+/*
+ * arch/ppc/platforms/4xx/ibm440spe.h
+ *
+ * PPC440SPe definitions
+ *
+ * Roland Dreier <rolandd@cisco.com>
+ * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ *
+ * Matt Porter <mporter@kernel.crashing.org>
+ * Copyright 2004-2005 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.
+ */
+
+#ifdef __KERNEL__
+#ifndef __PPC_PLATFORMS_PPC440SPE_H
+#define __PPC_PLATFORMS_PPC440SPE_H
+
+#include <linux/config.h>
+
+#include <asm/ibm44x.h>
+
+/* UART */
+#define PPC440SPE_UART0_ADDR 0x00000004f0000200ULL
+#define PPC440SPE_UART1_ADDR 0x00000004f0000300ULL
+#define PPC440SPE_UART2_ADDR 0x00000004f0000600ULL
+#define UART0_INT 0
+#define UART1_INT 1
+#define UART2_INT 37
+
+/* Clock and Power Management */
+#define IBM_CPM_IIC0 0x80000000 /* IIC interface */
+#define IBM_CPM_IIC1 0x40000000 /* IIC interface */
+#define IBM_CPM_PCI 0x20000000 /* PCI bridge */
+#define IBM_CPM_CPU 0x02000000 /* processor core */
+#define IBM_CPM_DMA 0x01000000 /* DMA controller */
+#define IBM_CPM_BGO 0x00800000 /* PLB to OPB bus arbiter */
+#define IBM_CPM_BGI 0x00400000 /* OPB to PLB bridge */
+#define IBM_CPM_EBC 0x00200000 /* External Bux Controller */
+#define IBM_CPM_EBM 0x00100000 /* Ext Bus Master Interface */
+#define IBM_CPM_DMC 0x00080000 /* SDRAM peripheral controller */
+#define IBM_CPM_PLB 0x00040000 /* PLB bus arbiter */
+#define IBM_CPM_SRAM 0x00020000 /* SRAM memory controller */
+#define IBM_CPM_PPM 0x00002000 /* PLB Performance Monitor */
+#define IBM_CPM_UIC1 0x00001000 /* Universal Interrupt Controller */
+#define IBM_CPM_GPIO0 0x00000800 /* General Purpose IO (??) */
+#define IBM_CPM_GPT 0x00000400 /* General Purpose Timers */
+#define IBM_CPM_UART0 0x00000200 /* serial port 0 */
+#define IBM_CPM_UART1 0x00000100 /* serial port 1 */
+#define IBM_CPM_UART2 0x00000100 /* serial port 1 */
+#define IBM_CPM_UIC0 0x00000080 /* Universal Interrupt Controller */
+#define IBM_CPM_TMRCLK 0x00000040 /* CPU timers */
+#define IBM_CPM_EMAC0 0x00000020 /* EMAC 0 */
+
+#define DFLT_IBM4xx_PM ~(IBM_CPM_UIC | IBM_CPM_UIC1 | IBM_CPM_CPU \
+ | IBM_CPM_EBC | IBM_CPM_SRAM | IBM_CPM_BGO \
+ | IBM_CPM_EBM | IBM_CPM_PLB | IBM_CPM_OPB \
+ | IBM_CPM_TMRCLK | IBM_CPM_DMA | IBM_CPM_PCI \
+ | IBM_CPM_TAHOE0 | IBM_CPM_TAHOE1 \
+ | IBM_CPM_EMAC0 | IBM_CPM_EMAC1 \
+ | IBM_CPM_EMAC2 | IBM_CPM_EMAC3 )
+#endif /* __PPC_PLATFORMS_PPC440SP_H */
+#endif /* __KERNEL__ */
obj-$(CONFIG_440GP) += ibm440gp_common.o
obj-$(CONFIG_440GX) += ibm440gx_common.o
obj-$(CONFIG_440SP) += ibm440gx_common.o ibm440sp_common.o
+obj-$(CONFIG_440SPE) += ibm440gx_common.o ibm440sp_common.o ppc440spe_pcie.o
ifeq ($(CONFIG_4xx),y)
ifeq ($(CONFIG_VIRTEX_II_PRO),y)
obj-$(CONFIG_40x) += xilinx_pic.o
/*
* arch/ppc/syslib/ibm440sp_common.c
*
- * PPC440SP system library
+ * PPC440SP/PPC440SPe system library
*
* Matt Porter <mporter@kernel.crashing.org>
* Copyright 2002-2005 MontaVista Software Inc.
u32 mem_size = 0;
/* Read two bank sizes and sum */
- for (i=0; i<2; i++)
+ for (i=0; i< MQ0_NUM_BANKS; i++)
switch (mfdcr(DCRN_MQ0_BS0BAS + i) & MQ0_CONFIG_SIZE_MASK) {
case MQ0_CONFIG_SIZE_8M:
mem_size += PPC44x_MEM_SIZE_8M;
/* Called from machine_check_exception */
void platform_machine_check(struct pt_regs *regs)
{
-#ifdef CONFIG_440SP
+#if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
printk("PLB0: BEAR=0x%08x%08x ACR= 0x%08x BESR= 0x%08x%08x\n",
mfdcr(DCRN_PLB0_BEARH), mfdcr(DCRN_PLB0_BEARL),
mfdcr(DCRN_PLB0_ACR), mfdcr(DCRN_PLB0_BESRH),
--- /dev/null
+/*
+ * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ * Roland Dreier <rolandd@cisco.com>
+ *
+ * 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/config.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/reg.h>
+#include <asm/io.h>
+#include <asm/ibm44x.h>
+
+#include "ppc440spe_pcie.h"
+
+static int
+pcie_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
+ int len, u32 *val)
+{
+ struct pci_controller *hose = bus->sysdata;
+
+ if (PCI_SLOT(devfn) != 1)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ offset += devfn << 12;
+
+ /*
+ * Note: the caller has already checked that offset is
+ * suitably aligned and that len is 1, 2 or 4.
+ */
+ switch (len) {
+ case 1:
+ *val = in_8(hose->cfg_data + offset);
+ break;
+ case 2:
+ *val = in_le16(hose->cfg_data + offset);
+ break;
+ default:
+ *val = in_le32(hose->cfg_data + offset);
+ break;
+ }
+
+ if (0) printk("%s: read %x(%d) @ %x\n", __func__, *val, len, offset);
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+pcie_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
+ int len, u32 val)
+{
+ struct pci_controller *hose = bus->sysdata;
+
+ if (PCI_SLOT(devfn) != 1)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ offset += devfn << 12;
+
+ switch (len) {
+ case 1:
+ out_8(hose->cfg_data + offset, val);
+ break;
+ case 2:
+ out_le16(hose->cfg_data + offset, val);
+ break;
+ default:
+ out_le32(hose->cfg_data + offset, val);
+ break;
+ }
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops pcie_pci_ops =
+{
+ .read = pcie_read_config,
+ .write = pcie_write_config
+};
+
+enum {
+ PTYPE_ENDPOINT = 0x0,
+ PTYPE_LEGACY_ENDPOINT = 0x1,
+ PTYPE_ROOT_PORT = 0x4,
+
+ LNKW_X1 = 0x1,
+ LNKW_X4 = 0x4,
+ LNKW_X8 = 0x8
+};
+
+static void check_error(void)
+{
+ u32 valPE0, valPE1, valPE2;
+
+ /* SDR0_PEGPLLLCT1 reset */
+ if (!(valPE0 = SDR_READ(PESDR0_PLLLCT1) & 0x01000000)) {
+ printk(KERN_INFO "PCIE: SDR0_PEGPLLLCT1 reset error 0x%8x\n", valPE0);
+ }
+
+ valPE0 = SDR_READ(PESDR0_RCSSET);
+ valPE1 = SDR_READ(PESDR1_RCSSET);
+ valPE2 = SDR_READ(PESDR2_RCSSET);
+
+ /* SDR0_PExRCSSET rstgu */
+ if ( !(valPE0 & 0x01000000) ||
+ !(valPE1 & 0x01000000) ||
+ !(valPE2 & 0x01000000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstgu error\n");
+ }
+
+ /* SDR0_PExRCSSET rstdl */
+ if ( !(valPE0 & 0x00010000) ||
+ !(valPE1 & 0x00010000) ||
+ !(valPE2 & 0x00010000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstdl error\n");
+ }
+
+ /* SDR0_PExRCSSET rstpyn */
+ if ( (valPE0 & 0x00001000) ||
+ (valPE1 & 0x00001000) ||
+ (valPE2 & 0x00001000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstpyn error\n");
+ }
+
+ /* SDR0_PExRCSSET hldplb */
+ if ( (valPE0 & 0x10000000) ||
+ (valPE1 & 0x10000000) ||
+ (valPE2 & 0x10000000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET hldplb error\n");
+ }
+
+ /* SDR0_PExRCSSET rdy */
+ if ( (valPE0 & 0x00100000) ||
+ (valPE1 & 0x00100000) ||
+ (valPE2 & 0x00100000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rdy error\n");
+ }
+
+ /* SDR0_PExRCSSET shutdown */
+ if ( (valPE0 & 0x00000100) ||
+ (valPE1 & 0x00000100) ||
+ (valPE2 & 0x00000100)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET shutdown error\n");
+ }
+}
+
+/*
+ * Initialize PCI Express core as described in User Manual section 27.12.1
+ */
+int ppc440spe_init_pcie(void)
+{
+ /* Set PLL clock receiver to LVPECL */
+ SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) | 1 << 28);
+
+ check_error();
+
+ printk(KERN_INFO "PCIE initialization OK\n");
+
+ if (!(SDR_READ(PESDR0_PLLLCT2) & 0x10000))
+ printk(KERN_INFO "PESDR_PLLCT2 resistance calibration failed (0x%08x)\n",
+ SDR_READ(PESDR0_PLLLCT2));
+
+ /* De-assert reset of PCIe PLL, wait for lock */
+ SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) & ~(1 << 24));
+ udelay(3);
+
+ return 0;
+}
+
+int ppc440spe_init_pcie_rootport(int port)
+{
+ static int core_init;
+ void __iomem *utl_base;
+ u32 val = 0;
+ int i;
+
+ if (!core_init) {
+ ++core_init;
+ i = ppc440spe_init_pcie();
+ if (i)
+ return i;
+ }
+
+ /*
+ * Initialize various parts of the PCI Express core for our port:
+ *
+ * - Set as a root port and enable max width
+ * (PXIE0 -> X8, PCIE1 and PCIE2 -> X4).
+ * - Set up UTL configuration.
+ * - Increase SERDES drive strength to levels suggested by AMCC.
+ * - De-assert RSTPYN, RSTDL and RSTGU.
+ */
+ switch (port) {
+ case 0:
+ SDR_WRITE(PESDR0_DLPSET, PTYPE_ROOT_PORT << 20 | LNKW_X8 << 12);
+
+ SDR_WRITE(PESDR0_UTLSET1, 0x21222222);
+ SDR_WRITE(PESDR0_UTLSET2, 0x11000000);
+
+ SDR_WRITE(PESDR0_HSSL0SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL1SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL2SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL3SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL4SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL5SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL6SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL7SET1, 0x35000000);
+
+ SDR_WRITE(PESDR0_RCSSET,
+ (SDR_READ(PESDR0_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ break;
+
+ case 1:
+ SDR_WRITE(PESDR1_DLPSET, PTYPE_ROOT_PORT << 20 | LNKW_X4 << 12);
+
+ SDR_WRITE(PESDR1_UTLSET1, 0x21222222);
+ SDR_WRITE(PESDR1_UTLSET2, 0x11000000);
+
+ SDR_WRITE(PESDR1_HSSL0SET1, 0x35000000);
+ SDR_WRITE(PESDR1_HSSL1SET1, 0x35000000);
+ SDR_WRITE(PESDR1_HSSL2SET1, 0x35000000);
+ SDR_WRITE(PESDR1_HSSL3SET1, 0x35000000);
+
+ SDR_WRITE(PESDR1_RCSSET,
+ (SDR_READ(PESDR1_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ break;
+
+ case 2:
+ SDR_WRITE(PESDR2_DLPSET, PTYPE_ROOT_PORT << 20 | LNKW_X4 << 12);
+
+ SDR_WRITE(PESDR2_UTLSET1, 0x21222222);
+ SDR_WRITE(PESDR2_UTLSET2, 0x11000000);
+
+ SDR_WRITE(PESDR2_HSSL0SET1, 0x35000000);
+ SDR_WRITE(PESDR2_HSSL1SET1, 0x35000000);
+ SDR_WRITE(PESDR2_HSSL2SET1, 0x35000000);
+ SDR_WRITE(PESDR2_HSSL3SET1, 0x35000000);
+
+ SDR_WRITE(PESDR2_RCSSET,
+ (SDR_READ(PESDR2_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ break;
+ }
+
+ mdelay(1000);
+
+ switch (port) {
+ case 0: val = SDR_READ(PESDR0_RCSSTS); break;
+ case 1: val = SDR_READ(PESDR1_RCSSTS); break;
+ case 2: val = SDR_READ(PESDR2_RCSSTS); break;
+ }
+
+ if (!(val & (1 << 20)))
+ printk(KERN_INFO "PCIE%d: PGRST inactive\n", port);
+ else
+ printk(KERN_WARNING "PGRST for PCIE%d failed %08x\n", port, val);
+
+ switch (port) {
+ case 0: printk(KERN_INFO "PCIE0: LOOP %08x\n", SDR_READ(PESDR0_LOOP)); break;
+ case 1: printk(KERN_INFO "PCIE1: LOOP %08x\n", SDR_READ(PESDR1_LOOP)); break;
+ case 2: printk(KERN_INFO "PCIE2: LOOP %08x\n", SDR_READ(PESDR2_LOOP)); break;
+ }
+
+ /*
+ * Map UTL registers at 0xc_1000_0n00
+ */
+ switch (port) {
+ case 0:
+ mtdcr(DCRN_PEGPL_REGBAH(PCIE0), 0x0000000c);
+ mtdcr(DCRN_PEGPL_REGBAL(PCIE0), 0x10000000);
+ mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001);
+ mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0x68782800);
+ break;
+
+ case 1:
+ mtdcr(DCRN_PEGPL_REGBAH(PCIE1), 0x0000000c);
+ mtdcr(DCRN_PEGPL_REGBAL(PCIE1), 0x10001000);
+ mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001);
+ mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0x68782800);
+ break;
+
+ case 2:
+ mtdcr(DCRN_PEGPL_REGBAH(PCIE2), 0x0000000c);
+ mtdcr(DCRN_PEGPL_REGBAL(PCIE2), 0x10002000);
+ mtdcr(DCRN_PEGPL_REGMSK(PCIE2), 0x00007001);
+ mtdcr(DCRN_PEGPL_SPECIAL(PCIE2), 0x68782800);
+ }
+
+ utl_base = ioremap64(0xc10000000ull + 0x1000 * port, 0x100);
+
+ /*
+ * Set buffer allocations and then assert VRB and TXE.
+ */
+ out_be32(utl_base + PEUTL_OUTTR, 0x08000000);
+ out_be32(utl_base + PEUTL_INTR, 0x02000000);
+ out_be32(utl_base + PEUTL_OPDBSZ, 0x10000000);
+ out_be32(utl_base + PEUTL_PBBSZ, 0x53000000);
+ out_be32(utl_base + PEUTL_IPHBSZ, 0x08000000);
+ out_be32(utl_base + PEUTL_IPDBSZ, 0x10000000);
+ out_be32(utl_base + PEUTL_RCIRQEN, 0x00f00000);
+ out_be32(utl_base + PEUTL_PCTL, 0x80800066);
+
+ iounmap(utl_base);
+
+ /*
+ * We map PCI Express configuration access into the 512MB regions
+ * PCIE0: 0xc_4000_0000
+ * PCIE1: 0xc_8000_0000
+ * PCIE2: 0xc_c000_0000
+ */
+ switch (port) {
+ case 0:
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE0), 0x0000000c);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE0), 0x40000000);
+ mtdcr(DCRN_PEGPL_CFGMSK(PCIE0), 0xe0000001); /* 512MB region, valid */
+ break;
+
+ case 1:
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE1), 0x0000000c);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE1), 0x80000000);
+ mtdcr(DCRN_PEGPL_CFGMSK(PCIE1), 0xe0000001); /* 512MB region, valid */
+ break;
+
+ case 2:
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE2), 0x0000000c);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE2), 0xc0000000);
+ mtdcr(DCRN_PEGPL_CFGMSK(PCIE2), 0xe0000001); /* 512MB region, valid */
+ break;
+ }
+
+ /*
+ * Check for VC0 active and assert RDY.
+ */
+ switch (port) {
+ case 0:
+ if (!(SDR_READ(PESDR0_RCSSTS) & (1 << 16)))
+ printk(KERN_WARNING "PCIE0: VC0 not active\n");
+ SDR_WRITE(PESDR0_RCSSET, SDR_READ(PESDR0_RCSSET) | 1 << 20);
+ break;
+ case 1:
+ if (!(SDR_READ(PESDR1_RCSSTS) & (1 << 16)))
+ printk(KERN_WARNING "PCIE0: VC0 not active\n");
+ SDR_WRITE(PESDR1_RCSSET, SDR_READ(PESDR1_RCSSET) | 1 << 20);
+ break;
+ case 2:
+ if (!(SDR_READ(PESDR2_RCSSTS) & (1 << 16)))
+ printk(KERN_WARNING "PCIE0: VC0 not active\n");
+ SDR_WRITE(PESDR2_RCSSET, SDR_READ(PESDR2_RCSSET) | 1 << 20);
+ break;
+ }
+
+#if 0
+ /* Dump all config regs */
+ for (i = 0x300; i <= 0x320; ++i)
+ printk("[%04x] 0x%08x\n", i, SDR_READ(i));
+ for (i = 0x340; i <= 0x353; ++i)
+ printk("[%04x] 0x%08x\n", i, SDR_READ(i));
+ for (i = 0x370; i <= 0x383; ++i)
+ printk("[%04x] 0x%08x\n", i, SDR_READ(i));
+ for (i = 0x3a0; i <= 0x3a2; ++i)
+ printk("[%04x] 0x%08x\n", i, SDR_READ(i));
+ for (i = 0x3c0; i <= 0x3c3; ++i)
+ printk("[%04x] 0x%08x\n", i, SDR_READ(i));
+#endif
+
+ mdelay(100);
+
+ return 0;
+}
+
+void ppc440spe_setup_pcie(struct pci_controller *hose, int port)
+{
+ void __iomem *mbase;
+
+ /*
+ * Map 16MB, which is enough for 4 bits of bus #
+ */
+ hose->cfg_data = ioremap64(0xc40000000ull + port * 0x40000000,
+ 1 << 24);
+ hose->ops = &pcie_pci_ops;
+
+ /*
+ * Set bus numbers on our root port
+ */
+ mbase = ioremap64(0xc50000000ull + port * 0x40000000, 4096);
+ out_8(mbase + PCI_PRIMARY_BUS, 0);
+ out_8(mbase + PCI_SECONDARY_BUS, 0);
+
+ /*
+ * Set up outbound translation to hose->mem_space from PLB
+ * addresses at an offset of 0xd_0000_0000. We set the low
+ * bits of the mask to 11 to turn off splitting into 8
+ * subregions and to enable the outbound translation.
+ */
+ out_le32(mbase + PECFG_POM0LAH, 0);
+ out_le32(mbase + PECFG_POM0LAL, hose->mem_space.start);
+
+ switch (port) {
+ case 0:
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), 0x0000000d);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), hose->mem_space.start);
+ mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
+ mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
+ ~(hose->mem_space.end - hose->mem_space.start) | 3);
+ break;
+ case 1:
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), 0x0000000d);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), hose->mem_space.start);
+ mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
+ mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
+ ~(hose->mem_space.end - hose->mem_space.start) | 3);
+
+ break;
+ case 2:
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), 0x0000000d);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), hose->mem_space.start);
+ mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
+ mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
+ ~(hose->mem_space.end - hose->mem_space.start) | 3);
+ break;
+ }
+
+ /* Set up 16GB inbound memory window at 0 */
+ out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
+ out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
+ out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffc);
+ out_le32(mbase + PECFG_BAR0LMPA, 0);
+ out_le32(mbase + PECFG_PIM0LAL, 0);
+ out_le32(mbase + PECFG_PIM0LAH, 0);
+ out_le32(mbase + PECFG_PIMEN, 0x1);
+
+ /* Enable I/O, Mem, and Busmaster cycles */
+ out_le16(mbase + PCI_COMMAND,
+ in_le16(mbase + PCI_COMMAND) |
+ PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+
+ iounmap(mbase);
+}
--- /dev/null
+/*
+ * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ * Roland Dreier <rolandd@cisco.com>
+ *
+ * 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.
+ */
+
+#ifndef __PPC_SYSLIB_PPC440SPE_PCIE_H
+#define __PPC_SYSLIB_PPC440SPE_PCIE_H
+
+#define DCRN_SDR0_CFGADDR 0x00e
+#define DCRN_SDR0_CFGDATA 0x00f
+
+#define DCRN_PCIE0_BASE 0x100
+#define DCRN_PCIE1_BASE 0x120
+#define DCRN_PCIE2_BASE 0x140
+#define PCIE0 DCRN_PCIE0_BASE
+#define PCIE1 DCRN_PCIE1_BASE
+#define PCIE2 DCRN_PCIE2_BASE
+
+#define DCRN_PEGPL_CFGBAH(base) (base + 0x00)
+#define DCRN_PEGPL_CFGBAL(base) (base + 0x01)
+#define DCRN_PEGPL_CFGMSK(base) (base + 0x02)
+#define DCRN_PEGPL_MSGBAH(base) (base + 0x03)
+#define DCRN_PEGPL_MSGBAL(base) (base + 0x04)
+#define DCRN_PEGPL_MSGMSK(base) (base + 0x05)
+#define DCRN_PEGPL_OMR1BAH(base) (base + 0x06)
+#define DCRN_PEGPL_OMR1BAL(base) (base + 0x07)
+#define DCRN_PEGPL_OMR1MSKH(base) (base + 0x08)
+#define DCRN_PEGPL_OMR1MSKL(base) (base + 0x09)
+#define DCRN_PEGPL_REGBAH(base) (base + 0x12)
+#define DCRN_PEGPL_REGBAL(base) (base + 0x13)
+#define DCRN_PEGPL_REGMSK(base) (base + 0x14)
+#define DCRN_PEGPL_SPECIAL(base) (base + 0x15)
+
+/*
+ * System DCRs (SDRs)
+ */
+#define PESDR0_PLLLCT1 0x03a0
+#define PESDR0_PLLLCT2 0x03a1
+#define PESDR0_PLLLCT3 0x03a2
+
+#define PESDR0_UTLSET1 0x0300
+#define PESDR0_UTLSET2 0x0301
+#define PESDR0_DLPSET 0x0302
+#define PESDR0_LOOP 0x0303
+#define PESDR0_RCSSET 0x0304
+#define PESDR0_RCSSTS 0x0305
+#define PESDR0_HSSL0SET1 0x0306
+#define PESDR0_HSSL0SET2 0x0307
+#define PESDR0_HSSL0STS 0x0308
+#define PESDR0_HSSL1SET1 0x0309
+#define PESDR0_HSSL1SET2 0x030a
+#define PESDR0_HSSL1STS 0x030b
+#define PESDR0_HSSL2SET1 0x030c
+#define PESDR0_HSSL2SET2 0x030d
+#define PESDR0_HSSL2STS 0x030e
+#define PESDR0_HSSL3SET1 0x030f
+#define PESDR0_HSSL3SET2 0x0310
+#define PESDR0_HSSL3STS 0x0311
+#define PESDR0_HSSL4SET1 0x0312
+#define PESDR0_HSSL4SET2 0x0313
+#define PESDR0_HSSL4STS 0x0314
+#define PESDR0_HSSL5SET1 0x0315
+#define PESDR0_HSSL5SET2 0x0316
+#define PESDR0_HSSL5STS 0x0317
+#define PESDR0_HSSL6SET1 0x0318
+#define PESDR0_HSSL6SET2 0x0319
+#define PESDR0_HSSL6STS 0x031a
+#define PESDR0_HSSL7SET1 0x031b
+#define PESDR0_HSSL7SET2 0x031c
+#define PESDR0_HSSL7STS 0x031d
+#define PESDR0_HSSCTLSET 0x031e
+#define PESDR0_LANE_ABCD 0x031f
+#define PESDR0_LANE_EFGH 0x0320
+
+#define PESDR1_UTLSET1 0x0340
+#define PESDR1_UTLSET2 0x0341
+#define PESDR1_DLPSET 0x0342
+#define PESDR1_LOOP 0x0343
+#define PESDR1_RCSSET 0x0344
+#define PESDR1_RCSSTS 0x0345
+#define PESDR1_HSSL0SET1 0x0346
+#define PESDR1_HSSL0SET2 0x0347
+#define PESDR1_HSSL0STS 0x0348
+#define PESDR1_HSSL1SET1 0x0349
+#define PESDR1_HSSL1SET2 0x034a
+#define PESDR1_HSSL1STS 0x034b
+#define PESDR1_HSSL2SET1 0x034c
+#define PESDR1_HSSL2SET2 0x034d
+#define PESDR1_HSSL2STS 0x034e
+#define PESDR1_HSSL3SET1 0x034f
+#define PESDR1_HSSL3SET2 0x0350
+#define PESDR1_HSSL3STS 0x0351
+#define PESDR1_HSSCTLSET 0x0352
+#define PESDR1_LANE_ABCD 0x0353
+
+#define PESDR2_UTLSET1 0x0370
+#define PESDR2_UTLSET2 0x0371
+#define PESDR2_DLPSET 0x0372
+#define PESDR2_LOOP 0x0373
+#define PESDR2_RCSSET 0x0374
+#define PESDR2_RCSSTS 0x0375
+#define PESDR2_HSSL0SET1 0x0376
+#define PESDR2_HSSL0SET2 0x0377
+#define PESDR2_HSSL0STS 0x0378
+#define PESDR2_HSSL1SET1 0x0379
+#define PESDR2_HSSL1SET2 0x037a
+#define PESDR2_HSSL1STS 0x037b
+#define PESDR2_HSSL2SET1 0x037c
+#define PESDR2_HSSL2SET2 0x037d
+#define PESDR2_HSSL2STS 0x037e
+#define PESDR2_HSSL3SET1 0x037f
+#define PESDR2_HSSL3SET2 0x0380
+#define PESDR2_HSSL3STS 0x0381
+#define PESDR2_HSSCTLSET 0x0382
+#define PESDR2_LANE_ABCD 0x0383
+
+/*
+ * UTL register offsets
+ */
+#define PEUTL_PBBSZ 0x20
+#define PEUTL_OPDBSZ 0x68
+#define PEUTL_IPHBSZ 0x70
+#define PEUTL_IPDBSZ 0x78
+#define PEUTL_OUTTR 0x90
+#define PEUTL_INTR 0x98
+#define PEUTL_PCTL 0xa0
+#define PEUTL_RCIRQEN 0xb8
+
+/*
+ * Config space register offsets
+ */
+#define PECFG_BAR0LMPA 0x210
+#define PECFG_BAR0HMPA 0x214
+#define PECFG_PIMEN 0x33c
+#define PECFG_PIM0LAL 0x340
+#define PECFG_PIM0LAH 0x344
+#define PECFG_POM0LAL 0x380
+#define PECFG_POM0LAH 0x384
+
+int ppc440spe_init_pcie(void);
+int ppc440spe_init_pcie_rootport(int port);
+void ppc440spe_setup_pcie(struct pci_controller *hose, int port);
+
+#endif /* __PPC_SYSLIB_PPC440SPE_PCIE_H */
#define IRQ_MASK_UICx(irq) (1 << (31 - ((irq) & 0x1f)))
#define IRQ_MASK_UIC1(irq) IRQ_MASK_UICx(irq)
#define IRQ_MASK_UIC2(irq) IRQ_MASK_UICx(irq)
+#define IRQ_MASK_UIC3(irq) IRQ_MASK_UICx(irq)
#define UIC_HANDLERS(n) \
static void ppc4xx_uic##n##_enable(unsigned int irq) \
.end = ppc4xx_uic##n##_end, \
} \
-#if NR_UICS == 3
+#if NR_UICS == 4
+#define ACK_UIC0_PARENT
+#define ACK_UIC1_PARENT mtdcr(DCRN_UIC_SR(UIC0), UIC0_UIC1NC);
+#define ACK_UIC2_PARENT mtdcr(DCRN_UIC_SR(UIC0), UIC0_UIC2NC);
+#define ACK_UIC3_PARENT mtdcr(DCRN_UIC_SR(UIC0), UIC0_UIC3NC);
+UIC_HANDLERS(0);
+UIC_HANDLERS(1);
+UIC_HANDLERS(2);
+UIC_HANDLERS(3);
+
+static int ppc4xx_pic_get_irq(struct pt_regs *regs)
+{
+ u32 uic0 = mfdcr(DCRN_UIC_MSR(UIC0));
+ if (uic0 & UIC0_UIC1NC)
+ return 64 - ffs(mfdcr(DCRN_UIC_MSR(UIC1)));
+ else if (uic0 & UIC0_UIC2NC)
+ return 96 - ffs(mfdcr(DCRN_UIC_MSR(UIC2)));
+ else if (uic0 & UIC0_UIC3NC)
+ return 128 - ffs(mfdcr(DCRN_UIC_MSR(UIC3)));
+ else
+ return uic0 ? 32 - ffs(uic0) : -1;
+}
+
+static void __init ppc4xx_pic_impl_init(void)
+{
+ /* Enable cascade interrupts in UIC0 */
+ ppc_cached_irq_mask[0] |= UIC0_UIC1NC | UIC0_UIC2NC | UIC0_UIC3NC;
+ mtdcr(DCRN_UIC_SR(UIC0), UIC0_UIC1NC | UIC0_UIC2NC | UIC0_UIC3NC);
+ mtdcr(DCRN_UIC_ER(UIC0), ppc_cached_irq_mask[0]);
+}
+
+#elif NR_UICS == 3
#define ACK_UIC0_PARENT mtdcr(DCRN_UIC_SR(UICB), UICB_UIC0NC);
#define ACK_UIC1_PARENT mtdcr(DCRN_UIC_SR(UICB), UICB_UIC1NC);
#define ACK_UIC2_PARENT mtdcr(DCRN_UIC_SR(UICB), UICB_UIC2NC);
{ .decl = DECLARE_UIC(1), .base = UIC1 },
#if NR_UICS > 2
{ .decl = DECLARE_UIC(2), .base = UIC2 },
+#if NR_UICS > 3
+ { .decl = DECLARE_UIC(3), .base = UIC3 },
+#endif
#endif
#endif
};
#if defined(CONFIG_440SP)
#define UART0_PHYS_ERPN 1
#define UART0_PHYS_IO_BASE 0xf0000200
+#elif defined(CONFIG_440SPE)
+#define UART0_PHYS_ERPN 4
+#define UART0_PHYS_IO_BASE 0xf0000200
#elif defined(CONFIG_440EP)
#define UART0_PHYS_IO_BASE 0xe0000000
#else
#define PPC44x_PCICFG_PAGE 0x0000000900000000ULL
#define PPC44x_PCIIO_PAGE PPC44x_PCICFG_PAGE
#define PPC44x_PCIMEM_PAGE 0x0000000a00000000ULL
+#elif defined(CONFIG_440SPE)
+#define PPC44x_IO_PAGE 0x0000000400000000ULL
+#define PPC44x_PCICFG_PAGE 0x0000000c00000000ULL
+#define PPC44x_PCIIO_PAGE PPC44x_PCICFG_PAGE
+#define PPC44x_PCIMEM_PAGE 0x0000000d00000000ULL
#elif defined(CONFIG_440EP)
#define PPC44x_IO_PAGE 0x0000000000000000ULL
#define PPC44x_PCICFG_PAGE 0x0000000000000000ULL
/*
* 36-bit trap ranges
*/
-#if defined(CONFIG_440SP)
+#if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
#define PPC44x_IO_LO 0xf0000000UL
#define PPC44x_IO_HI 0xf0000fffUL
#define PPC44x_PCI0CFG_LO 0x0ec00000UL
*/
-/* CPRs (440GX and 440SP) */
+/* CPRs (440GX and 440SP/440SPe) */
#define DCRN_CPR_CONFIG_ADDR 0xc
#define DCRN_CPR_CONFIG_DATA 0xd
mtdcr(DCRN_CPR_CONFIG_ADDR, offset); \
mtdcr(DCRN_CPR_CONFIG_DATA, data);})
-/* SDRs (440GX and 440SP) */
+/* SDRs (440GX and 440SP/440SPe) */
#define DCRN_SDR_CONFIG_ADDR 0xe
#define DCRN_SDR_CONFIG_DATA 0xf
#define DCRN_SDR_PFC0 0x4100
mtdcr(DCRN_SDR_CONFIG_ADDR, offset); \
mtdcr(DCRN_SDR_CONFIG_DATA,data);})
-/* DMA (excluding 440SP) */
+/* DMA (excluding 440SP/440SPe) */
#define DCRN_DMA0_BASE 0x100
#define DCRN_DMA1_BASE 0x108
#define DCRN_DMA2_BASE 0x110
/* UIC */
#define DCRN_UIC0_BASE 0xc0
#define DCRN_UIC1_BASE 0xd0
-#define DCRN_UIC2_BASE 0x210
-#define DCRN_UICB_BASE 0x200
#define UIC0 DCRN_UIC0_BASE
#define UIC1 DCRN_UIC1_BASE
+
+#ifdef CONFIG_440SPE
+#define DCRN_UIC2_BASE 0xe0
+#define DCRN_UIC3_BASE 0xf0
+#define UIC2 DCRN_UIC2_BASE
+#define UIC3 DCRN_UIC3_BASE
+#else
+#define DCRN_UIC2_BASE 0x210
+#define DCRN_UICB_BASE 0x200
#define UIC2 DCRN_UIC2_BASE
#define UICB DCRN_UICB_BASE
+#endif
#define DCRN_UIC_SR(base) (base + 0x0)
#define DCRN_UIC_ER(base) (base + 0x2)
#define UIC0_UIC1NC 0x00000002
+#ifdef CONFIG_440SPE
+#define UIC0_UIC1NC 0x00000002
+#define UIC0_UIC2NC 0x00200000
+#define UIC0_UIC3NC 0x00008000
+#endif
+
#define UICB_UIC0NC 0x40000000
#define UICB_UIC1NC 0x10000000
#define UICB_UIC2NC 0x04000000
#define MALOBISR_CH0 0x80000000 /* EOB channel 1 bit */
#define MALOBISR_CH2 0x40000000 /* EOB channel 2 bit */
-#if defined(CONFIG_440SP)
-/* 440SP PLB Arbiter DCRs */
+#if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
+/* 440SP/440SPe PLB Arbiter DCRs */
#define DCRN_PLB_REVID 0x080 /* PLB Revision ID */
#define DCRN_PLB_CCR 0x088 /* PLB Crossbar Control */
#define PPC44x_MEM_SIZE_1G 0x40000000
#define PPC44x_MEM_SIZE_2G 0x80000000
-/* 440SP memory controller DCRs */
+/* 440SP/440SPe memory controller DCRs */
#define DCRN_MQ0_BS0BAS 0x40
-#define DCRN_MQ0_BS1BAS 0x41
+#if defined(CONFIG_440SP)
+#define MQ0_NUM_BANKS 2
+#elif defined(CONFIG_440SPE)
+#define MQ0_NUM_BANKS 4
+#endif
#define MQ0_CONFIG_SIZE_MASK 0x0000fff0
#define MQ0_CONFIG_SIZE_8M 0x0000ffc0
#define MQ0_CONFIG_SIZE_512M 0x0000f000
#define MQ0_CONFIG_SIZE_1G 0x0000e000
#define MQ0_CONFIG_SIZE_2G 0x0000c000
+#define MQ0_CONFIG_SIZE_4G 0x00008000
-/* Internal SRAM Controller 440GX/440SP */
+/* Internal SRAM Controller 440GX/440SP/440SPe */
#define DCRN_SRAM0_BASE 0x000
#define DCRN_SRAM0_SB0CR (DCRN_SRAM0_BASE + 0x020)
#define DCRN_SRAM0_DPC (DCRN_SRAM0_BASE + 0x02a)
#define SRAM_DPC_ENABLE 0x80000000
-/* L2 Cache Controller 440GX/440SP */
+/* L2 Cache Controller 440GX/440SP/440SPe */
#define DCRN_L2C0_CFG 0x030
#define L2C_CFG_L2M 0x80000000
#define L2C_CFG_ICU 0x40000000
#define IIC_CLOCK 50
#undef NR_UICS
-#ifdef CONFIG_440GX
+#if defined(CONFIG_440GX)
#define NR_UICS 3
+#elif defined(CONFIG_440SPE)
+#define NR_UICS 4
#else
#define NR_UICS 2
#endif
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff