diff options
Diffstat (limited to 'target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c')
| -rw-r--r-- | target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c | 523 |
1 files changed, 523 insertions, 0 deletions
diff --git a/target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c b/target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c new file mode 100644 index 0000000000..4a4fdadba5 --- /dev/null +++ b/target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c @@ -0,0 +1,523 @@ +/* +<:copyright-gpl + Copyright 2002 Broadcom Corp. All Rights Reserved. + + This program is free software; you can distribute it and/or modify it + under the terms of the GNU General Public License (Version 2) as + published by the Free Software Foundation. + + This program is distributed in the hope 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., + 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. +:> +*/ +/* + * Generic setup routines for Broadcom 963xx MIPS boards + */ + +#include <linux/autoconf.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/kdev_t.h> +#include <linux/types.h> +#include <linux/console.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/pm.h> + +#include <asm/addrspace.h> +#include <asm/bcache.h> +#include <asm/irq.h> +#include <asm/time.h> +#include <asm/reboot.h> +#include <asm/gdb-stub.h> + +extern void brcm_time_init(void); +extern unsigned long getMemorySize(void); + +#if defined(CONFIG_BCM96348) && defined(CONFIG_PCI) +#include <linux/pci.h> +#include <linux/delay.h> +#include <bcm_map_part.h> +#include <bcmpci.h> + +static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE); +#endif + +/* This function should be in a board specific directory. For now, + * assume that all boards that include this file use a Broadcom chip + * with a soft reset bit in the PLL control register. + */ +static void brcm_machine_restart(char *command) +{ + const unsigned long ulSoftReset = 0x00000001; + unsigned long *pulPllCtrl = (unsigned long *) 0xfffe0008; + *pulPllCtrl |= ulSoftReset; +} + +static void brcm_machine_halt(void) +{ + printk("System halted\n"); + while (1); +} + +#if defined(CONFIG_BCM96348) && defined(CONFIG_PCI) + +static void mpi_SetLocalPciConfigReg(uint32 reg, uint32 value) +{ + /* write index then value */ + mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;; + mpi->pcicfgdata = value; +} + +static uint32 mpi_GetLocalPciConfigReg(uint32 reg) +{ + /* write index then get value */ + mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;; + return mpi->pcicfgdata; +} + +/* + * mpi_ResetPcCard: Set/Reset the PcCard + */ +static void mpi_ResetPcCard(int cardtype, BOOL bReset) +{ + if (cardtype == MPI_CARDTYPE_NONE) { + return; + } + + if (cardtype == MPI_CARDTYPE_CARDBUS) { + bReset = ! bReset; + } + + if (bReset) { + mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET); + } else { + mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 | PCCARD_CARD_RESET); + } +} + +/* + * mpi_ConfigCs: Configure an MPI/EBI chip select + */ +static void mpi_ConfigCs(uint32 cs, uint32 base, uint32 size, uint32 flags) +{ + mpi->cs[cs].base = ((base & 0x1FFFFFFF) | size); + mpi->cs[cs].config = flags; +} + +/* + * mpi_InitPcmciaSpace + */ +static void mpi_InitPcmciaSpace(void) +{ + // ChipSelect 4 controls PCMCIA Memory accesses + mpi_ConfigCs(PCMCIA_COMMON_BASE, pcmciaMem, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE)); + // ChipSelect 5 controls PCMCIA Attribute accesses + mpi_ConfigCs(PCMCIA_ATTRIBUTE_BASE, pcmciaAttr, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE)); + // ChipSelect 6 controls PCMCIA I/O accesses + mpi_ConfigCs(PCMCIA_IO_BASE, pcmciaIo, EBI_SIZE_64K, (EBI_WORD_WIDE|EBI_ENABLE)); + + mpi->pcmcia_cntl2 = ((PCMCIA_ATTR_ACTIVE << RW_ACTIVE_CNT_BIT) | + (PCMCIA_ATTR_INACTIVE << INACTIVE_CNT_BIT) | + (PCMCIA_ATTR_CE_SETUP << CE_SETUP_CNT_BIT) | + (PCMCIA_ATTR_CE_HOLD << CE_HOLD_CNT_BIT)); + + mpi->pcmcia_cntl2 |= (PCMCIA_HALFWORD_EN | PCMCIA_BYTESWAP_DIS); +} + +/* + * cardtype_vcc_detect: PC Card's card detect and voltage sense connection + * + * CD1#/ CD2#/ VS1#/ VS2#/ Card Initial Vcc + * CCD1# CCD2# CVS1 CVS2 Type + * + * GND GND open open 16-bit 5 vdc + * + * GND GND GND open 16-bit 3.3 vdc + * + * GND GND open GND 16-bit x.x vdc + * + * GND GND GND GND 16-bit 3.3 & x.x vdc + * + *==================================================================== + * + * CVS1 GND CCD1# open CardBus 3.3 vdc + * + * GND CVS2 open CCD2# CardBus x.x vdc + * + * GND CVS1 CCD2# open CardBus y.y vdc + * + * GND CVS2 GND CCD2# CardBus 3.3 & x.x vdc + * + * CVS2 GND open CCD1# CardBus x.x & y.y vdc + * + * GND CVS1 CCD2# open CardBus 3.3, x.x & y.y vdc + * + */ +static int cardtype_vcc_detect(void) +{ + uint32 data32; + int cardtype; + + cardtype = MPI_CARDTYPE_NONE; + mpi->pcmcia_cntl1 = 0x0000A000; // Turn on the output enables and drive + // the CVS pins to 0. + data32 = mpi->pcmcia_cntl1; + switch (data32 & 0x00000003) // Test CD1# and CD2#, see if card is plugged in. + { + case 0x00000003: // No Card is in the slot. + printk("mpi: No Card is in the PCMCIA slot\n"); + break; + + case 0x00000002: // Partial insertion, No CD2#. + printk("mpi: Card in the PCMCIA slot partial insertion, no CD2 signal\n"); + break; + + case 0x00000001: // Partial insertion, No CD1#. + printk("mpi: Card in the PCMCIA slot partial insertion, no CD1 signal\n"); + break; + + case 0x00000000: + mpi->pcmcia_cntl1 = 0x0000A0C0; // Turn off the CVS output enables and + // float the CVS pins. + mdelay(1); + data32 = mpi->pcmcia_cntl1; + // Read the Register. + switch (data32 & 0x0000000C) // See what is on the CVS pins. + { + case 0x00000000: // CVS1 and CVS2 are tied to ground, only 1 option. + printk("mpi: Detected 3.3 & x.x 16-bit PCMCIA card\n"); + cardtype = MPI_CARDTYPE_PCMCIA; + break; + + case 0x00000004: // CVS1 is open or tied to CCD1/CCD2 and CVS2 is tied to ground. + // 2 valid voltage options. + switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. + { + case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. + // This is not a valid combination. + printk("mpi: Unknown card plugged into slot\n"); + break; + + case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. + mpi->pcmcia_cntl1 = 0x0000A080; // Drive CVS1 to a 0. + mdelay(1); + data32 = mpi->pcmcia_cntl1; + if (data32 & 0x00000002) { // CCD2 is tied to CVS2, not valid. + printk("mpi: Unknown card plugged into slot\n"); + } else { // CCD2 is tied to CVS1. + printk("mpi: Detected 3.3, x.x and y.y Cardbus card\n"); + cardtype = MPI_CARDTYPE_CARDBUS; + } + break; + + case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. + // This is not a valid combination. + printk("mpi: Unknown card plugged into slot\n"); + break; + + case 0x00000000: // CCD1 and CCD2 are tied to ground. + printk("mpi: Detected x.x vdc 16-bit PCMCIA card\n"); + cardtype = MPI_CARDTYPE_PCMCIA; + break; + } + break; + + case 0x00000008: // CVS2 is open or tied to CCD1/CCD2 and CVS1 is tied to ground. + // 2 valid voltage options. + switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. + { + case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. + // This is not a valid combination. + printk("mpi: Unknown card plugged into slot\n"); + break; + + case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. + mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. + mdelay(1); + data32 = mpi->pcmcia_cntl1; + if (data32 & 0x00000002) { // CCD2 is tied to CVS1, not valid. + printk("mpi: Unknown card plugged into slot\n"); + } else {// CCD2 is tied to CVS2. + printk("mpi: Detected 3.3 and x.x Cardbus card\n"); + cardtype = MPI_CARDTYPE_CARDBUS; + } + break; + + case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. + // This is not a valid combination. + printk("mpi: Unknown card plugged into slot\n"); + break; + + case 0x00000000: // CCD1 and CCD2 are tied to ground. + cardtype = MPI_CARDTYPE_PCMCIA; + printk("mpi: Detected 3.3 vdc 16-bit PCMCIA card\n"); + break; + } + break; + + case 0x0000000C: // CVS1 and CVS2 are open or tied to CCD1/CCD2. + // 5 valid voltage options. + + switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. + { + case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. + // This is not a valid combination. + printk("mpi: Unknown card plugged into slot\n"); + break; + + case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. + // CCD1 is tied to ground. + mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. + mdelay(1); + data32 = mpi->pcmcia_cntl1; + if (data32 & 0x00000002) { // CCD2 is tied to CVS1. + printk("mpi: Detected y.y vdc Cardbus card\n"); + } else { // CCD2 is tied to CVS2. + printk("mpi: Detected x.x vdc Cardbus card\n"); + } + cardtype = MPI_CARDTYPE_CARDBUS; + break; + + case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. + // CCD2 is tied to ground. + + mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. + mdelay(1); + data32 = mpi->pcmcia_cntl1; + if (data32 & 0x00000001) {// CCD1 is tied to CVS1. + printk("mpi: Detected 3.3 vdc Cardbus card\n"); + } else { // CCD1 is tied to CVS2. + printk("mpi: Detected x.x and y.y Cardbus card\n"); + } + cardtype = MPI_CARDTYPE_CARDBUS; + break; + + case 0x00000000: // CCD1 and CCD2 are tied to ground. + cardtype = MPI_CARDTYPE_PCMCIA; + printk("mpi: Detected 5 vdc 16-bit PCMCIA card\n"); + break; + } + break; + + default: + printk("mpi: Unknown card plugged into slot\n"); + break; + + } + } + return cardtype; +} + +/* + * mpi_DetectPcCard: Detect the plugged in PC-Card + * Return: < 0 => Unknown card detected + * 0 => No card detected + * 1 => 16-bit card detected + * 2 => 32-bit CardBus card detected + */ +static int mpi_DetectPcCard(void) +{ + int cardtype; + + cardtype = cardtype_vcc_detect(); + switch(cardtype) { + case MPI_CARDTYPE_PCMCIA: + mpi->pcmcia_cntl1 &= ~0x0000e000; // disable enable bits + //mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET); + mpi->pcmcia_cntl1 |= (PCMCIA_ENABLE | PCMCIA_GPIO_ENABLE); + mpi_InitPcmciaSpace(); + mpi_ResetPcCard(cardtype, FALSE); + // Hold card in reset for 10ms + mdelay(10); + mpi_ResetPcCard(cardtype, TRUE); + // Let card come out of reset + mdelay(100); + break; + case MPI_CARDTYPE_CARDBUS: + // 8 => CardBus Enable + // 1 => PCI Slot Number + // C => Float VS1 & VS2 + mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & 0xFFFF0000) | + CARDBUS_ENABLE | + (CARDBUS_SLOT << 8)| + VS2_OEN | + VS1_OEN; + /* access to this memory window will be to/from CardBus */ + mpi->l2pmremap1 |= CARDBUS_MEM; + + // Need to reset the Cardbus Card. There's no CardManager to do this, + // and we need to be ready for PCI configuration. + mpi_ResetPcCard(cardtype, FALSE); + // Hold card in reset for 10ms + mdelay(10); + mpi_ResetPcCard(cardtype, TRUE); + // Let card come out of reset + mdelay(100); + break; + default: + break; + } + return cardtype; +} + +static int mpi_init(void) +{ + unsigned long data; + unsigned int chipid; + unsigned int chiprev; + unsigned int sdramsize; + + chipid = (PERF->RevID & 0xFFFF0000) >> 16; + chiprev = (PERF->RevID & 0xFF); + sdramsize = getMemorySize(); + /* + * Init the pci interface + */ + data = GPIO->GPIOMode; // GPIO mode register + data |= GROUP2_PCI | GROUP1_MII_PCCARD; // PCI internal arbiter + Cardbus + GPIO->GPIOMode = data; // PCI internal arbiter + + /* + * In the BCM6348 CardBus support is defaulted to Slot 0 + * because there is no external IDSEL for CardBus. To disable + * the CardBus and allow a standard PCI card in Slot 0 + * set the cbus_idsel field to 0x1f. + */ + /* + uData = mpi->pcmcia_cntl1; + uData |= CARDBUS_IDSEL; + mpi->pcmcia_cntl1 = uData; + */ + // Setup PCI I/O Window range. Give 64K to PCI I/O + mpi->l2piorange = ~(BCM_PCI_IO_SIZE_64KB-1); + // UBUS to PCI I/O base address + mpi->l2piobase = BCM_PCI_IO_BASE & BCM_PCI_ADDR_MASK; + // UBUS to PCI I/O Window remap + mpi->l2pioremap = (BCM_PCI_IO_BASE | MEM_WINDOW_EN); + + // enable PCI related GPIO pins and data swap between system and PCI bus + mpi->locbuscntrl = (EN_PCI_GPIO | DIR_U2P_NOSWAP); + + /* Enable 6348 BusMaster and Memory access mode */ + data = mpi_GetLocalPciConfigReg(PCI_COMMAND); + data |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + mpi_SetLocalPciConfigReg(PCI_COMMAND, data); + + /* Configure two 16 MByte PCI to System memory regions. */ + /* These memory regions are used when PCI device is a bus master */ + /* Accesses to the SDRAM from PCI bus will be "byte swapped" for this region */ + mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_3, BCM_HOST_MEM_SPACE1); + mpi->sp0remap = 0x0; + + /* Accesses to the SDRAM from PCI bus will not be "byte swapped" for this region */ + mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_4, BCM_HOST_MEM_SPACE2); + mpi->sp1remap = 0x0; + mpi->pcimodesel |= (PCI_BAR2_NOSWAP | 0x40); + + if ((chipid == 0x6348) && (chiprev == 0xb0)) { + mpi->sp0range = ~(sdramsize-1); + mpi->sp1range = ~(sdramsize-1); + } + /* + * Change 6348 PCI Cfg Reg. offset 0x40 to PCI memory read retry count infinity + * by set 0 in bit 8~15. This resolve read Bcm4306 srom return 0xffff in + * first read. + */ + data = mpi_GetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER); + data &= ~BRCM_PCI_CONFIG_TIMER_RETRY_MASK; + data |= 0x00000080; + mpi_SetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER, data); + + /* enable pci interrupt */ + mpi->locintstat |= (EXT_PCI_INT << 16); + + mpi_DetectPcCard(); + + ioport_resource.start = BCM_PCI_IO_BASE; + ioport_resource.end = BCM_PCI_IO_BASE + BCM_PCI_IO_SIZE_64KB; + +#if defined(CONFIG_USB) + PERF->blkEnables |= USBH_CLK_EN; + mdelay(100); + *USBH_NON_OHCI = NON_OHCI_BYTE_SWAP; +#endif + + return 0; +} +#endif + +static int __init brcm63xx_setup(void) +{ + extern int panic_timeout; + + _machine_restart = brcm_machine_restart; + _machine_halt = brcm_machine_halt; + pm_power_off = brcm_machine_halt; + + board_time_init = brcm_time_init; + + panic_timeout = 5; + +#if defined(CONFIG_BCM96348) && defined(CONFIG_PCI) + /* mpi initialization */ + mpi_init(); +#endif + return 0; +} + +void __init plat_mem_setup(void) +{ + brcm63xx_setup(); +} + +/*************************************************************************** + * C++ New and delete operator functions + ***************************************************************************/ + +/* void *operator new(unsigned int sz) */ +void *_Znwj(unsigned int sz) +{ + return( kmalloc(sz, GFP_KERNEL) ); +} + +/* void *operator new[](unsigned int sz)*/ +void *_Znaj(unsigned int sz) +{ + return( kmalloc(sz, GFP_KERNEL) ); +} + +/* placement new operator */ +/* void *operator new (unsigned int size, void *ptr) */ +void *ZnwjPv(unsigned int size, void *ptr) +{ + return ptr; +} + +/* void operator delete(void *m) */ +void _ZdlPv(void *m) +{ + kfree(m); +} + +/* void operator delete[](void *m) */ +void _ZdaPv(void *m) +{ + kfree(m); +} + +EXPORT_SYMBOL(_Znwj); +EXPORT_SYMBOL(_Znaj); +EXPORT_SYMBOL(ZnwjPv); +EXPORT_SYMBOL(_ZdlPv); +EXPORT_SYMBOL(_ZdaPv); + |