diff options
author | Ishizaki Kou <kou.ishizaki@toshiba.co.jp> | 2008-04-24 19:26:28 +1000 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2008-04-24 21:08:13 +1000 |
commit | 11eef455c2834e192c6ffe9f3ffd09af70fafe81 (patch) | |
tree | 199940f8ca3f83c58f2cec2ffdef3ad9c8829921 /arch/powerpc/platforms/cell | |
parent | 116bdc425c7e01e97cff2f3e6d0134511e8f13e3 (diff) |
[POWERPC] celleb: Move the SCC related code for celleb
This moves the SCC (Super Companion Chip) related code for celleb
into platforms/cell/.
All files in this patch are used by celleb-beat and celleb-native
commonly.
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell')
-rw-r--r-- | arch/powerpc/platforms/cell/Makefile | 5 | ||||
-rw-r--r-- | arch/powerpc/platforms/cell/celleb_scc.h | 145 | ||||
-rw-r--r-- | arch/powerpc/platforms/cell/celleb_scc_epci.c | 438 | ||||
-rw-r--r-- | arch/powerpc/platforms/cell/celleb_scc_sio.c | 101 | ||||
-rw-r--r-- | arch/powerpc/platforms/cell/celleb_scc_uhc.c | 95 |
5 files changed, 783 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile index b644f5717fc..3b6ee08701f 100644 --- a/arch/powerpc/platforms/cell/Makefile +++ b/arch/powerpc/platforms/cell/Makefile @@ -32,6 +32,9 @@ obj-$(CONFIG_PCI_MSI) += axon_msi.o # celleb stuff ifeq ($(CONFIG_PPC_CELLEB),y) obj-y += celleb_setup.o \ - celleb_pci.o \ + celleb_pci.o celleb_scc_epci.o \ + celleb_scc_uhc.o \ io-workarounds.o spider-pci.o + +obj-$(CONFIG_SERIAL_TXX9) += celleb_scc_sio.o endif diff --git a/arch/powerpc/platforms/cell/celleb_scc.h b/arch/powerpc/platforms/cell/celleb_scc.h new file mode 100644 index 00000000000..6be1542a6e6 --- /dev/null +++ b/arch/powerpc/platforms/cell/celleb_scc.h @@ -0,0 +1,145 @@ +/* + * SCC (Super Companion Chip) definitions + * + * (C) Copyright 2004-2006 TOSHIBA CORPORATION + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef _CELLEB_SCC_H +#define _CELLEB_SCC_H + +#define PCI_VENDOR_ID_TOSHIBA_2 0x102f +#define PCI_DEVICE_ID_TOSHIBA_SCC_PCIEXC_BRIDGE 0x01b0 +#define PCI_DEVICE_ID_TOSHIBA_SCC_EPCI_BRIDGE 0x01b1 +#define PCI_DEVICE_ID_TOSHIBA_SCC_BRIDGE 0x01b2 +#define PCI_DEVICE_ID_TOSHIBA_SCC_GBE 0x01b3 +#define PCI_DEVICE_ID_TOSHIBA_SCC_ATA 0x01b4 +#define PCI_DEVICE_ID_TOSHIBA_SCC_USB2 0x01b5 +#define PCI_DEVICE_ID_TOSHIBA_SCC_USB 0x01b6 +#define PCI_DEVICE_ID_TOSHIBA_SCC_ENCDEC 0x01b7 + +#define SCC_EPCI_REG 0x0000d000 + +/* EPCI registers */ +#define SCC_EPCI_CNF10_REG 0x010 +#define SCC_EPCI_CNF14_REG 0x014 +#define SCC_EPCI_CNF18_REG 0x018 +#define SCC_EPCI_PVBAT 0x100 +#define SCC_EPCI_VPMBAT 0x104 +#define SCC_EPCI_VPIBAT 0x108 +#define SCC_EPCI_VCSR 0x110 +#define SCC_EPCI_VIENAB 0x114 +#define SCC_EPCI_VISTAT 0x118 +#define SCC_EPCI_VRDCOUNT 0x124 +#define SCC_EPCI_BAM0 0x12c +#define SCC_EPCI_BAM1 0x134 +#define SCC_EPCI_BAM2 0x13c +#define SCC_EPCI_IADR 0x164 +#define SCC_EPCI_CLKRST 0x800 +#define SCC_EPCI_INTSET 0x804 +#define SCC_EPCI_STATUS 0x808 +#define SCC_EPCI_ABTSET 0x80c +#define SCC_EPCI_WATRP 0x810 +#define SCC_EPCI_DUMYRADR 0x814 +#define SCC_EPCI_SWRESP 0x818 +#define SCC_EPCI_CNTOPT 0x81c +#define SCC_EPCI_ECMODE 0xf00 +#define SCC_EPCI_IOM_AC_NUM 5 +#define SCC_EPCI_IOM_ACTE(n) (0xf10 + (n) * 4) +#define SCC_EPCI_IOT_AC_NUM 4 +#define SCC_EPCI_IOT_ACTE(n) (0xf30 + (n) * 4) +#define SCC_EPCI_MAEA 0xf50 +#define SCC_EPCI_MAEC 0xf54 +#define SCC_EPCI_CKCTRL 0xff0 + +/* bits for SCC_EPCI_VCSR */ +#define SCC_EPCI_VCSR_FRE 0x00020000 +#define SCC_EPCI_VCSR_FWE 0x00010000 +#define SCC_EPCI_VCSR_DR 0x00000400 +#define SCC_EPCI_VCSR_SR 0x00000008 +#define SCC_EPCI_VCSR_AT 0x00000004 + +/* bits for SCC_EPCI_VIENAB/SCC_EPCI_VISTAT */ +#define SCC_EPCI_VISTAT_PMPE 0x00000008 +#define SCC_EPCI_VISTAT_PMFE 0x00000004 +#define SCC_EPCI_VISTAT_PRA 0x00000002 +#define SCC_EPCI_VISTAT_PRD 0x00000001 +#define SCC_EPCI_VISTAT_ALL 0x0000000f + +#define SCC_EPCI_VIENAB_PMPEE 0x00000008 +#define SCC_EPCI_VIENAB_PMFEE 0x00000004 +#define SCC_EPCI_VIENAB_PRA 0x00000002 +#define SCC_EPCI_VIENAB_PRD 0x00000001 +#define SCC_EPCI_VIENAB_ALL 0x0000000f + +/* bits for SCC_EPCI_CLKRST */ +#define SCC_EPCI_CLKRST_CKS_MASK 0x00030000 +#define SCC_EPCI_CLKRST_CKS_2 0x00000000 +#define SCC_EPCI_CLKRST_CKS_4 0x00010000 +#define SCC_EPCI_CLKRST_CKS_8 0x00020000 +#define SCC_EPCI_CLKRST_PCICRST 0x00000400 +#define SCC_EPCI_CLKRST_BC 0x00000200 +#define SCC_EPCI_CLKRST_PCIRST 0x00000100 +#define SCC_EPCI_CLKRST_PCKEN 0x00000001 + +/* bits for SCC_EPCI_INTSET/SCC_EPCI_STATUS */ +#define SCC_EPCI_INT_2M 0x01000000 +#define SCC_EPCI_INT_RERR 0x00200000 +#define SCC_EPCI_INT_SERR 0x00100000 +#define SCC_EPCI_INT_PRTER 0x00080000 +#define SCC_EPCI_INT_SER 0x00040000 +#define SCC_EPCI_INT_PER 0x00020000 +#define SCC_EPCI_INT_PAI 0x00010000 +#define SCC_EPCI_INT_1M 0x00000100 +#define SCC_EPCI_INT_PME 0x00000010 +#define SCC_EPCI_INT_INTD 0x00000008 +#define SCC_EPCI_INT_INTC 0x00000004 +#define SCC_EPCI_INT_INTB 0x00000002 +#define SCC_EPCI_INT_INTA 0x00000001 +#define SCC_EPCI_INT_DEVINT 0x0000000f +#define SCC_EPCI_INT_ALL 0x003f001f +#define SCC_EPCI_INT_ALLERR 0x003f0000 + +/* bits for SCC_EPCI_CKCTRL */ +#define SCC_EPCI_CKCTRL_CRST0 0x00010000 +#define SCC_EPCI_CKCTRL_CRST1 0x00020000 +#define SCC_EPCI_CKCTRL_OCLKEN 0x00000100 +#define SCC_EPCI_CKCTRL_LCLKEN 0x00000001 + +#define SCC_EPCI_IDSEL_AD_TO_SLOT(ad) ((ad) - 10) +#define SCC_EPCI_MAX_DEVNU SCC_EPCI_IDSEL_AD_TO_SLOT(32) + +/* bits for SCC_EPCI_CNTOPT */ +#define SCC_EPCI_CNTOPT_O2PMB 0x00000002 + +/* UHC registers */ +#define SCC_UHC_CKRCTRL 0xff0 +#define SCC_UHC_ECMODE 0xf00 + +/* bits for SCC_UHC_CKRCTRL */ +#define SCC_UHC_F48MCKLEN 0x00000001 +#define SCC_UHC_P_SUSPEND 0x00000002 +#define SCC_UHC_PHY_SUSPEND_SEL 0x00000004 +#define SCC_UHC_HCLKEN 0x00000100 +#define SCC_UHC_USBEN 0x00010000 +#define SCC_UHC_USBCEN 0x00020000 +#define SCC_UHC_PHYEN 0x00040000 + +/* bits for SCC_UHC_ECMODE */ +#define SCC_UHC_ECMODE_BY_BYTE 0x00000555 +#define SCC_UHC_ECMODE_BY_WORD 0x00000aaa + +#endif /* _CELLEB_SCC_H */ diff --git a/arch/powerpc/platforms/cell/celleb_scc_epci.c b/arch/powerpc/platforms/cell/celleb_scc_epci.c new file mode 100644 index 00000000000..08c285b10e3 --- /dev/null +++ b/arch/powerpc/platforms/cell/celleb_scc_epci.c @@ -0,0 +1,438 @@ +/* + * Support for SCC external PCI + * + * (C) Copyright 2004-2007 TOSHIBA CORPORATION + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/threads.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/pci_regs.h> +#include <linux/bootmem.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/prom.h> +#include <asm/pci-bridge.h> +#include <asm/ppc-pci.h> + +#include "celleb_scc.h" +#include "celleb_pci.h" + +#define MAX_PCI_DEVICES 32 +#define MAX_PCI_FUNCTIONS 8 + +#define iob() __asm__ __volatile__("eieio; sync":::"memory") + +static inline PCI_IO_ADDR celleb_epci_get_epci_base( + struct pci_controller *hose) +{ + /* + * Note: + * Celleb epci uses cfg_addr as a base address for + * epci control registers. + */ + + return hose->cfg_addr; +} + +static inline PCI_IO_ADDR celleb_epci_get_epci_cfg( + struct pci_controller *hose) +{ + /* + * Note: + * Celleb epci uses cfg_data as a base address for + * configuration area for epci devices. + */ + + return hose->cfg_data; +} + +static inline void clear_and_disable_master_abort_interrupt( + struct pci_controller *hose) +{ + PCI_IO_ADDR epci_base; + PCI_IO_ADDR reg; + epci_base = celleb_epci_get_epci_base(hose); + reg = epci_base + PCI_COMMAND; + out_be32(reg, in_be32(reg) | (PCI_STATUS_REC_MASTER_ABORT << 16)); +} + +static int celleb_epci_check_abort(struct pci_controller *hose, + PCI_IO_ADDR addr) +{ + PCI_IO_ADDR reg; + PCI_IO_ADDR epci_base; + u32 val; + + iob(); + epci_base = celleb_epci_get_epci_base(hose); + + reg = epci_base + PCI_COMMAND; + val = in_be32(reg); + + if (val & (PCI_STATUS_REC_MASTER_ABORT << 16)) { + out_be32(reg, + (val & 0xffff) | (PCI_STATUS_REC_MASTER_ABORT << 16)); + + /* clear PCI Controller error, FRE, PMFE */ + reg = epci_base + SCC_EPCI_STATUS; + out_be32(reg, SCC_EPCI_INT_PAI); + + reg = epci_base + SCC_EPCI_VCSR; + val = in_be32(reg) & 0xffff; + val |= SCC_EPCI_VCSR_FRE; + out_be32(reg, val); + + reg = epci_base + SCC_EPCI_VISTAT; + out_be32(reg, SCC_EPCI_VISTAT_PMFE); + return PCIBIOS_DEVICE_NOT_FOUND; + } + + return PCIBIOS_SUCCESSFUL; +} + +static PCI_IO_ADDR celleb_epci_make_config_addr(struct pci_bus *bus, + struct pci_controller *hose, unsigned int devfn, int where) +{ + PCI_IO_ADDR addr; + + if (bus != hose->bus) + addr = celleb_epci_get_epci_cfg(hose) + + (((bus->number & 0xff) << 16) + | ((devfn & 0xff) << 8) + | (where & 0xff) + | 0x01000000); + else + addr = celleb_epci_get_epci_cfg(hose) + + (((devfn & 0xff) << 8) | (where & 0xff)); + + pr_debug("EPCI: config_addr = 0x%p\n", addr); + + return addr; +} + +static int celleb_epci_read_config(struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 *val) +{ + PCI_IO_ADDR epci_base; + PCI_IO_ADDR addr; + struct device_node *node; + struct pci_controller *hose; + + /* allignment check */ + BUG_ON(where % size); + + node = (struct device_node *)bus->sysdata; + hose = pci_find_hose_for_OF_device(node); + + if (!celleb_epci_get_epci_cfg(hose)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (bus->number == hose->first_busno && devfn == 0) { + /* EPCI controller self */ + + epci_base = celleb_epci_get_epci_base(hose); + addr = epci_base + where; + + switch (size) { + case 1: + *val = in_8(addr); + break; + case 2: + *val = in_be16(addr); + break; + case 4: + *val = in_be32(addr); + break; + default: + return PCIBIOS_DEVICE_NOT_FOUND; + } + + } else { + + clear_and_disable_master_abort_interrupt(hose); + addr = celleb_epci_make_config_addr(bus, hose, devfn, where); + + switch (size) { + case 1: + *val = in_8(addr); + break; + case 2: + *val = in_le16(addr); + break; + case 4: + *val = in_le32(addr); + break; + default: + return PCIBIOS_DEVICE_NOT_FOUND; + } + } + + pr_debug("EPCI: " + "addr=0x%p, devfn=0x%x, where=0x%x, size=0x%x, val=0x%x\n", + addr, devfn, where, size, *val); + + return celleb_epci_check_abort(hose, NULL); +} + +static int celleb_epci_write_config(struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 val) +{ + PCI_IO_ADDR epci_base; + PCI_IO_ADDR addr; + struct device_node *node; + struct pci_controller *hose; + + /* allignment check */ + BUG_ON(where % size); + + node = (struct device_node *)bus->sysdata; + hose = pci_find_hose_for_OF_device(node); + + + if (!celleb_epci_get_epci_cfg(hose)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (bus->number == hose->first_busno && devfn == 0) { + /* EPCI controller self */ + + epci_base = celleb_epci_get_epci_base(hose); + addr = epci_base + where; + + switch (size) { + case 1: + out_8(addr, val); + break; + case 2: + out_be16(addr, val); + break; + case 4: + out_be32(addr, val); + break; + default: + return PCIBIOS_DEVICE_NOT_FOUND; + } + + } else { + + clear_and_disable_master_abort_interrupt(hose); + addr = celleb_epci_make_config_addr(bus, hose, devfn, where); + + switch (size) { + case 1: + out_8(addr, val); + break; + case 2: + out_le16(addr, val); + break; + case 4: + out_le32(addr, val); + break; + default: + return PCIBIOS_DEVICE_NOT_FOUND; + } + } + + return celleb_epci_check_abort(hose, addr); +} + +struct pci_ops celleb_epci_ops = { + .read = celleb_epci_read_config, + .write = celleb_epci_write_config, +}; + +/* to be moved in FW */ +static int __init celleb_epci_init(struct pci_controller *hose) +{ + u32 val; + PCI_IO_ADDR reg; + PCI_IO_ADDR epci_base; + int hwres = 0; + + epci_base = celleb_epci_get_epci_base(hose); + + /* PCI core reset(Internal bus and PCI clock) */ + reg = epci_base + SCC_EPCI_CKCTRL; + val = in_be32(reg); + if (val == 0x00030101) + hwres = 1; + else { + val &= ~(SCC_EPCI_CKCTRL_CRST0 | SCC_EPCI_CKCTRL_CRST1); + out_be32(reg, val); + + /* set PCI core clock */ + val = in_be32(reg); + val |= (SCC_EPCI_CKCTRL_OCLKEN | SCC_EPCI_CKCTRL_LCLKEN); + out_be32(reg, val); + + /* release PCI core reset (internal bus) */ + val = in_be32(reg); + val |= SCC_EPCI_CKCTRL_CRST0; + out_be32(reg, val); + + /* set PCI clock select */ + reg = epci_base + SCC_EPCI_CLKRST; + val = in_be32(reg); + val &= ~SCC_EPCI_CLKRST_CKS_MASK; + val |= SCC_EPCI_CLKRST_CKS_2; + out_be32(reg, val); + + /* set arbiter */ + reg = epci_base + SCC_EPCI_ABTSET; + out_be32(reg, 0x0f1f001f); /* temporary value */ + + /* buffer on */ + reg = epci_base + SCC_EPCI_CLKRST; + val = in_be32(reg); + val |= SCC_EPCI_CLKRST_BC; + out_be32(reg, val); + + /* PCI clock enable */ + val = in_be32(reg); + val |= SCC_EPCI_CLKRST_PCKEN; + out_be32(reg, val); + + /* release PCI core reset (all) */ + reg = epci_base + SCC_EPCI_CKCTRL; + val = in_be32(reg); + val |= (SCC_EPCI_CKCTRL_CRST0 | SCC_EPCI_CKCTRL_CRST1); + out_be32(reg, val); + + /* set base translation registers. (already set by Beat) */ + + /* set base address masks. (already set by Beat) */ + } + + /* release interrupt masks and clear all interrupts */ + reg = epci_base + SCC_EPCI_INTSET; + out_be32(reg, 0x013f011f); /* all interrupts enable */ + reg = epci_base + SCC_EPCI_VIENAB; + val = SCC_EPCI_VIENAB_PMPEE | SCC_EPCI_VIENAB_PMFEE; + out_be32(reg, val); + reg = epci_base + SCC_EPCI_STATUS; + out_be32(reg, 0xffffffff); + reg = epci_base + SCC_EPCI_VISTAT; + out_be32(reg, 0xffffffff); + + /* disable PCI->IB address translation */ + reg = epci_base + SCC_EPCI_VCSR; + val = in_be32(reg); + val &= ~(SCC_EPCI_VCSR_DR | SCC_EPCI_VCSR_AT); + out_be32(reg, val); + + /* set base addresses. (no need to set?) */ + + /* memory space, bus master enable */ + reg = epci_base + PCI_COMMAND; + val = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; + out_be32(reg, val); + + /* endian mode setup */ + reg = epci_base + SCC_EPCI_ECMODE; + val = 0x00550155; + out_be32(reg, val); + + /* set control option */ + reg = epci_base + SCC_EPCI_CNTOPT; + val = in_be32(reg); + val |= SCC_EPCI_CNTOPT_O2PMB; + out_be32(reg, val); + + /* XXX: temporay: set registers for address conversion setup */ + reg = epci_base + SCC_EPCI_CNF10_REG; + out_be32(reg, 0x80000008); + reg = epci_base + SCC_EPCI_CNF14_REG; + out_be32(reg, 0x40000008); + + reg = epci_base + SCC_EPCI_BAM0; + out_be32(reg, 0x80000000); + reg = epci_base + SCC_EPCI_BAM1; + out_be32(reg, 0xe0000000); + + reg = epci_base + SCC_EPCI_PVBAT; + out_be32(reg, 0x80000000); + + if (!hwres) { + /* release external PCI reset */ + reg = epci_base + SCC_EPCI_CLKRST; + val = in_be32(reg); + val |= SCC_EPCI_CLKRST_PCIRST; + out_be32(reg, val); + } + + return 0; +} + +static int __init celleb_setup_epci(struct device_node *node, + struct pci_controller *hose) +{ + struct resource r; + + pr_debug("PCI: celleb_setup_epci()\n"); + + /* + * Note: + * Celleb epci uses cfg_addr and cfg_data member of + * pci_controller structure in irregular way. + * + * cfg_addr is used to map for control registers of + * celleb epci. + * + * cfg_data is used for configuration area of devices + * on Celleb epci buses. + */ + + if (of_address_to_resource(node, 0, &r)) + goto error; + hose->cfg_addr = ioremap(r.start, (r.end - r.start + 1)); + if (!hose->cfg_addr) + goto error; + pr_debug("EPCI: cfg_addr map 0x%016lx->0x%016lx + 0x%016lx\n", + r.start, (unsigned long)hose->cfg_addr, (r.end - r.start + 1)); + + if (of_address_to_resource(node, 2, &r)) + goto error; + hose->cfg_data = ioremap(r.start, (r.end - r.start + 1)); + if (!hose->cfg_data) + goto error; + pr_debug("EPCI: cfg_data map 0x%016lx->0x%016lx + 0x%016lx\n", + r.start, (unsigned long)hose->cfg_data, (r.end - r.start + 1)); + + hose->ops = &celleb_epci_ops; + celleb_epci_init(hose); + + return 0; + +error: + if (hose->cfg_addr) + iounmap(hose->cfg_addr); + + if (hose->cfg_data) + iounmap(hose->cfg_data); + return 1; +} + +struct celleb_phb_spec celleb_epci_spec __initdata = { + .setup = celleb_setup_epci, + .ops = &spiderpci_ops, + .iowa_init = &spiderpci_iowa_init, + .iowa_data = (void *)0, +}; diff --git a/arch/powerpc/platforms/cell/celleb_scc_sio.c b/arch/powerpc/platforms/cell/celleb_scc_sio.c new file mode 100644 index 00000000000..3a16c5b3c46 --- /dev/null +++ b/arch/powerpc/platforms/cell/celleb_scc_sio.c @@ -0,0 +1,101 @@ +/* + * setup serial port in SCC + * + * (C) Copyright 2006-2007 TOSHIBA CORPORATION + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <linux/tty.h> +#include <linux/serial.h> +#include <linux/serial_core.h> +#include <linux/console.h> + +#include <asm/io.h> +#include <asm/prom.h> + +/* sio irq0=0xb00010022 irq0=0xb00010023 irq2=0xb00010024 + mmio=0xfff000-0x1000,0xff2000-0x1000 */ +static int txx9_serial_bitmap __initdata; + +static struct { + uint32_t offset; + uint32_t index; +} txx9_scc_tab[3] __initdata = { + { 0x300, 0 }, /* 0xFFF300 */ + { 0x400, 0 }, /* 0xFFF400 */ + { 0x800, 1 } /* 0xFF2800 */ +}; + +static int __init txx9_serial_init(void) +{ + extern int early_serial_txx9_setup(struct uart_port *port); + struct device_node *node = NULL; + int i; + struct uart_port req; + struct of_irq irq; + struct resource res; + + while ((node = of_find_compatible_node(node, + "serial", "toshiba,sio-scc")) != NULL) { + for (i = 0; i < ARRAY_SIZE(txx9_scc_tab); i++) { + if (!(txx9_serial_bitmap & (1<<i))) + continue; + + if (of_irq_map_one(node, i, &irq)) + continue; + if (of_address_to_resource(node, + txx9_scc_tab[i].index, &res)) + continue; + + memset(&req, 0, sizeof(req)); + req.line = i; + req.iotype = UPIO_MEM; + req.mapbase = res.start + txx9_scc_tab[i].offset; +#ifdef CONFIG_SERIAL_TXX9_CONSOLE + req.membase = ioremap(req.mapbase, 0x24); +#endif + req.irq = irq_create_of_mapping(irq.controller, + irq.specifier, irq.size); + req.flags |= UPF_IOREMAP | UPF_BUGGY_UART + /*HAVE_CTS_LINE*/; + req.uartclk = 83300000; + early_serial_txx9_setup(&req); + } + } + + return 0; +} + +static int __init txx9_serial_config(char *ptr) +{ + int i; + + for (;;) { + switch (get_option(&ptr, &i)) { + default: + return 0; + case 2: + txx9_serial_bitmap |= 1 << i; + break; + case 1: + txx9_serial_bitmap |= 1 << i; + return 0; + } + } +} +__setup("txx9_serial=", txx9_serial_config); + +console_initcall(txx9_serial_init); diff --git a/arch/powerpc/platforms/cell/celleb_scc_uhc.c b/arch/powerpc/platforms/cell/celleb_scc_uhc.c new file mode 100644 index 00000000000..d63b720bfe3 --- /dev/null +++ b/arch/powerpc/platforms/cell/celleb_scc_uhc.c @@ -0,0 +1,95 @@ +/* + * SCC (Super Companion Chip) UHC setup + * + * (C) Copyright 2006-2007 TOSHIBA CORPORATION + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <linux/kernel.h> +#include <linux/pci.h> + +#include <asm/delay.h> +#include <asm/io.h> +#include <asm/machdep.h> + +#include "celleb_scc.h" + +#define UHC_RESET_WAIT_MAX 10000 + +static inline int uhc_clkctrl_ready(u32 val) +{ + const u32 mask = SCC_UHC_USBCEN | SCC_UHC_USBCEN; + return((val & mask) == mask); +} + +/* + * UHC(usb host controller) enable function. + * affect to both of OHCI and EHCI core module. + */ +static void enable_scc_uhc(struct pci_dev *dev) +{ + void __iomem *uhc_base; + u32 __iomem *uhc_clkctrl; + u32 __iomem *uhc_ecmode; + u32 val = 0; + int i; + + if (!machine_is(celleb_beat) && + !machine_is(celleb_native)) + return; + + uhc_base = ioremap(pci_resource_start(dev, 0), + pci_resource_len(dev, 0)); + if (!uhc_base) { + printk(KERN_ERR "failed to map UHC register base.\n"); + return; + } + uhc_clkctrl = uhc_base + SCC_UHC_CKRCTRL; + uhc_ecmode = uhc_base + SCC_UHC_ECMODE; + + /* setup for normal mode */ + val |= SCC_UHC_F48MCKLEN; + out_be32(uhc_clkctrl, val); + val |= SCC_UHC_PHY_SUSPEND_SEL; + out_be32(uhc_clkctrl, val); + udelay(10); + val |= SCC_UHC_PHYEN; + out_be32(uhc_clkctrl, val); + udelay(50); + + /* disable reset */ + val |= SCC_UHC_HCLKEN; + out_be32(uhc_clkctrl, val); + val |= (SCC_UHC_USBCEN | SCC_UHC_USBEN); + out_be32(uhc_clkctrl, val); + i = 0; + while (!uhc_clkctrl_ready(in_be32(uhc_clkctrl))) { + udelay(10); + if (i++ > UHC_RESET_WAIT_MAX) { + printk(KERN_ERR "Failed to disable UHC reset %x\n", + in_be32(uhc_clkctrl)); + break; + } + } + + /* Endian Conversion Mode for Master ALL area */ + out_be32(uhc_ecmode, SCC_UHC_ECMODE_BY_BYTE); + + iounmap(uhc_base); +} + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2, + PCI_DEVICE_ID_TOSHIBA_SCC_USB, enable_scc_uhc); |