diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/ifxmips/files/arch/mips/ifxmips/Makefile | 1 | ||||
| -rw-r--r-- | target/linux/ifxmips/files/arch/mips/pci/ops-ifxmips.c | 119 | ||||
| -rw-r--r-- | target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c (renamed from target/linux/ifxmips/files/arch/mips/ifxmips/pci.c) | 169 | ||||
| -rw-r--r-- | target/linux/ifxmips/patches/100-board.patch | 45 |
4 files changed, 160 insertions, 174 deletions
diff --git a/target/linux/ifxmips/files/arch/mips/ifxmips/Makefile b/target/linux/ifxmips/files/arch/mips/ifxmips/Makefile index ef317b5bb..d9c8e6ad7 100644 --- a/target/linux/ifxmips/files/arch/mips/ifxmips/Makefile +++ b/target/linux/ifxmips/files/arch/mips/ifxmips/Makefile @@ -1,2 +1 @@ obj-y := reset.o prom.o setup.o interrupt.o dma-core.o pmu.o board.o cgu.o gptu.o -obj-$(CONFIG_PCI) += pci.o diff --git a/target/linux/ifxmips/files/arch/mips/pci/ops-ifxmips.c b/target/linux/ifxmips/files/arch/mips/pci/ops-ifxmips.c new file mode 100644 index 000000000..3eb25821d --- /dev/null +++ b/target/linux/ifxmips/files/arch/mips/pci/ops-ifxmips.c @@ -0,0 +1,119 @@ +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/mm.h> +#include <asm/ifxmips/ifxmips.h> +#include <asm/ifxmips/ifxmips_irq.h> +#include <asm/addrspace.h> +#include <linux/vmalloc.h> + +#define IFXMIPS_PCI_CFG_BUSNUM_SHF 16 +#define IFXMIPS_PCI_CFG_DEVNUM_SHF 11 +#define IFXMIPS_PCI_CFG_FUNNUM_SHF 8 + +#define PCI_ACCESS_READ 0 +#define PCI_ACCESS_WRITE 1 + +extern u32 ifxmips_pci_mapped_cfg; + +static int +ifxmips_pci_config_access(unsigned char access_type, + struct pci_bus *bus, unsigned int devfn, unsigned int where, u32 *data) +{ + unsigned long cfg_base; + unsigned long flags; + + u32 temp; + + /* IFXMips support slot from 0 to 15 */ + /* dev_fn 0&0x68 (AD29) is ifxmips itself */ + if ((bus->number != 0) || ((devfn & 0xf8) > 0x78) + || ((devfn & 0xf8) == 0) || ((devfn & 0xf8) == 0x68)) + return 1; + + local_irq_save(flags); + + cfg_base = ifxmips_pci_mapped_cfg; + cfg_base |= (bus->number << IFXMIPS_PCI_CFG_BUSNUM_SHF) | (devfn << + IFXMIPS_PCI_CFG_FUNNUM_SHF) | (where & ~0x3); + + /* Perform access */ + if (access_type == PCI_ACCESS_WRITE) + { +#ifdef CONFIG_SWAP_IO_SPACE + ifxmips_w32(swab32(*data), ((u32*)cfg_base)); +#else + ifxmips_w32(*data, ((u32*)cfg_base)); +#endif + } else { + *data = ifxmips_r32(((u32*)(cfg_base))); +#ifdef CONFIG_SWAP_IO_SPACE + *data = swab32(*data); +#endif + } + wmb(); + + /* clean possible Master abort */ + cfg_base = (ifxmips_pci_mapped_cfg | (0x0 << IFXMIPS_PCI_CFG_FUNNUM_SHF)) + 4; + temp = ifxmips_r32(((u32*)(cfg_base))); +#ifdef CONFIG_SWAP_IO_SPACE + temp = swab32 (temp); +#endif + cfg_base = (ifxmips_pci_mapped_cfg | (0x68 << IFXMIPS_PCI_CFG_FUNNUM_SHF)) + 4; + ifxmips_w32(temp, ((u32*)cfg_base)); + + local_irq_restore(flags); + + if (((*data) == 0xffffffff) && (access_type == PCI_ACCESS_READ)) + return 1; + + return 0; +} + +int +ifxmips_pci_read_config_dword(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 * val) +{ + u32 data = 0; + + if (ifxmips_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (size == 1) + *val = (data >> ((where & 3) << 3)) & 0xff; + else if (size == 2) + *val = (data >> ((where & 3) << 3)) & 0xffff; + else + *val = data; + + return PCIBIOS_SUCCESSFUL; +} + +int +ifxmips_pci_write_config_dword(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + u32 data = 0; + + if (size == 4) + { + data = val; + } else { + if (ifxmips_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (size == 1) + data = (data & ~(0xff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + else if (size == 2) + data = (data & ~(0xffff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + } + + if (ifxmips_pci_config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + return PCIBIOS_SUCCESSFUL; +} diff --git a/target/linux/ifxmips/files/arch/mips/ifxmips/pci.c b/target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c index ae5807677..092a80ec4 100644 --- a/target/linux/ifxmips/files/arch/mips/ifxmips/pci.c +++ b/target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c @@ -14,17 +14,8 @@ #define IFXMIPS_PCI_IO_BASE 0x1AE00000 #define IFXMIPS_PCI_IO_SIZE 0x00200000 -#define IFXMIPS_PCI_CFG_BUSNUM_SHF 16 -#define IFXMIPS_PCI_CFG_DEVNUM_SHF 11 -#define IFXMIPS_PCI_CFG_FUNNUM_SHF 8 - -#define PCI_ACCESS_READ 0 -#define PCI_ACCESS_WRITE 1 - -#define CONFIG_IFXMIPS_PCI_HW_SWAP 1 - -static int ifxmips_pci_read_config_dword(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val); -static int ifxmips_pci_write_config_dword(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val); +extern int ifxmips_pci_read_config_dword(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val); +extern int ifxmips_pci_write_config_dword(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val); struct pci_ops ifxmips_pci_ops = { .read = ifxmips_pci_read_config_dword, @@ -53,112 +44,12 @@ static struct pci_controller ifxmips_pci_controller = { .io_offset = 0x00000000UL, }; -static u32 ifxmips_pci_mapped_cfg; - -static int -ifxmips_pci_config_access(unsigned char access_type, - struct pci_bus *bus, unsigned int devfn, unsigned int where, u32 *data) -{ - unsigned long cfg_base; - unsigned long flags; - - u32 temp; - - /* IFXMips support slot from 0 to 15 */ - /* dev_fn 0&0x68 (AD29) is ifxmips itself */ - if ((bus->number != 0) || ((devfn & 0xf8) > 0x78) - || ((devfn & 0xf8) == 0) || ((devfn & 0xf8) == 0x68)) - return 1; - - local_irq_save(flags); - - cfg_base = ifxmips_pci_mapped_cfg; - cfg_base |= (bus->number << IFXMIPS_PCI_CFG_BUSNUM_SHF) | (devfn << - IFXMIPS_PCI_CFG_FUNNUM_SHF) | (where & ~0x3); - - /* Perform access */ - if (access_type == PCI_ACCESS_WRITE) - { -#ifdef CONFIG_IFXMIPS_PCI_HW_SWAP - ifxmips_w32(swab32(*data), ((u32*)cfg_base)); -#else - ifxmips_w32(*data, ((u32*)cfg_base)); -#endif - } else { - *data = ifxmips_r32(((u32*)(cfg_base))); -#ifdef CONFIG_IFXMIPS_PCI_HW_SWAP - *data = swab32(*data); -#endif - } - wmb(); - - /* clean possible Master abort */ - cfg_base = (ifxmips_pci_mapped_cfg | (0x0 << IFXMIPS_PCI_CFG_FUNNUM_SHF)) + 4; - temp = ifxmips_r32(((u32*)(cfg_base))); -#ifdef CONFIG_IFXMIPS_PCI_HW_SWAP - temp = swab32 (temp); -#endif - cfg_base = (ifxmips_pci_mapped_cfg | (0x68 << IFXMIPS_PCI_CFG_FUNNUM_SHF)) + 4; - ifxmips_w32(temp, ((u32*)cfg_base)); - - local_irq_restore(flags); - - if (((*data) == 0xffffffff) && (access_type == PCI_ACCESS_READ)) - return 1; - - return 0; -} - -static int ifxmips_pci_read_config_dword(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 * val) -{ - u32 data = 0; - - if (ifxmips_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - if (size == 1) - *val = (data >> ((where & 3) << 3)) & 0xff; - else if (size == 2) - *val = (data >> ((where & 3) << 3)) & 0xffff; - else - *val = data; - - return PCIBIOS_SUCCESSFUL; -} - -static int ifxmips_pci_write_config_dword(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - u32 data = 0; - - if (size == 4) - { - data = val; - } else { - if (ifxmips_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - if (size == 1) - data = (data & ~(0xff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - else if (size == 2) - data = (data & ~(0xffff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - } - - if (ifxmips_pci_config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - return PCIBIOS_SUCCESSFUL; -} - +u32 ifxmips_pci_mapped_cfg; int pcibios_plat_dev_init(struct pci_dev *dev){ u8 pin; pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); - switch(pin) { case 0: break; @@ -175,43 +66,24 @@ int pcibios_plat_dev_init(struct pci_dev *dev){ printk ("WARNING: invalid interrupt pin %d\n", pin); return 1; } - return 0; } static void __init ifxmips_pci_startup (void){ - /*initialize the first PCI device--ifxmips itself */ u32 temp_buffer; - /*TODO: trigger reset */ ifxmips_w32(ifxmips_r32(IFXMIPS_CGU_IFCCR) & ~0xf00000, IFXMIPS_CGU_IFCCR); ifxmips_w32(ifxmips_r32(IFXMIPS_CGU_IFCCR) | 0x800000, IFXMIPS_CGU_IFCCR); - /* PCIS of IF_CLK of CGU : 1 =>PCI Clock output - 0 =>clock input - PADsel of PCI_CR of CGU : 1 =>From CGU - : 0 =>From pad - */ ifxmips_w32(ifxmips_r32(IFXMIPS_CGU_IFCCR) | (1 << 16), IFXMIPS_CGU_IFCCR); ifxmips_w32((1 << 31) | (1 << 30), IFXMIPS_CGU_PCICR); - - /* prepare GPIO */ - /* PCI_RST: P1.5 ALT 01 */ - //pliu20060613: start ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_OUT) | (1 << 5), IFXMIPS_GPIO_P1_OUT); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_OD) | (1 << 5), IFXMIPS_GPIO_P1_OD); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_DIR) | (1 << 5), IFXMIPS_GPIO_P1_DIR); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_ALTSEL1) & ~(1 << 5), IFXMIPS_GPIO_P1_ALTSEL1); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_ALTSEL0) & ~(1 << 5), IFXMIPS_GPIO_P1_ALTSEL0); - //pliu20060613: end - /* PCI_REQ1: P1.13 ALT 01 */ - /* PCI_GNT1: P1.14 ALT 01 */ ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_DIR) & ~0x2000, IFXMIPS_GPIO_P1_DIR); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_DIR) | 0x4000, IFXMIPS_GPIO_P1_DIR); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_ALTSEL1) & ~0x6000, IFXMIPS_GPIO_P1_ALTSEL1); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_ALTSEL0) | 0x6000, IFXMIPS_GPIO_P1_ALTSEL0); - /* PCI_REQ2: P1.15 ALT 10 */ - /* PCI_GNT2: P1.7 ALT 10 */ - - /* enable auto-switching between PCI and EBU */ ifxmips_w32(0xa, PCI_CR_CLK_CTRL); /* busy, i.e. configuration is not done, PCI access has to be retried */ @@ -220,8 +92,8 @@ static void __init ifxmips_pci_startup (void){ /* BUS Master/IO/MEM access */ ifxmips_w32(ifxmips_r32(PCI_CS_STS_CMD) | 7, PCI_CS_STS_CMD); - temp_buffer = ifxmips_r32(PCI_CR_PC_ARB); /* enable external 2 PCI masters */ + temp_buffer = ifxmips_r32(PCI_CR_PC_ARB); temp_buffer &= (~(0xf << 16)); /* enable internal arbiter */ temp_buffer |= (1 << INTERNAL_ARB_ENABLE_BIT); @@ -234,12 +106,8 @@ static void __init ifxmips_pci_startup (void){ /* enable all external masters request */ temp_buffer &= (~(3 << PCI_MASTER2_REQ_MASK_2BITS)); ifxmips_w32(temp_buffer, PCI_CR_PC_ARB); - wmb (); - /* FPI ==> PCI MEM address mapping */ - /* base: 0xb8000000 == > 0x18000000 */ - /* size: 8x4M = 32M */ ifxmips_w32(0x18000000, PCI_CR_FCI_ADDR_MAP0); ifxmips_w32(0x18400000, PCI_CR_FCI_ADDR_MAP1); ifxmips_w32(0x18800000, PCI_CR_FCI_ADDR_MAP2); @@ -248,20 +116,11 @@ static void __init ifxmips_pci_startup (void){ ifxmips_w32(0x19400000, PCI_CR_FCI_ADDR_MAP5); ifxmips_w32(0x19800000, PCI_CR_FCI_ADDR_MAP6); ifxmips_w32(0x19c00000, PCI_CR_FCI_ADDR_MAP7); - - /* FPI ==> PCI IO address mapping */ - /* base: 0xbAE00000 == > 0xbAE00000 */ - /* size: 2M */ ifxmips_w32(0x1ae00000, PCI_CR_FCI_ADDR_MAP11hg); - - /* PCI ==> FPI address mapping */ - /* base: 0x0 ==> 0x0 */ - /* size: 32M */ - /* BAR1 32M map to SDR address */ ifxmips_w32(0x0e000008, PCI_CR_BAR11MASK); ifxmips_w32(0, PCI_CR_PCI_ADDR_MAP11); ifxmips_w32(0, PCI_CS_BASE_ADDR1); -#ifdef CONFIG_IFXMIPS_PCI_HW_SWAP +#ifdef CONFIG_SWAP_IO_SPACE /* both TX and RX endian swap are enabled */ ifxmips_w32(ifxmips_r32(PCI_CR_PCI_EOI) | 3, PCI_CR_PCI_EOI); wmb (); @@ -269,14 +128,13 @@ static void __init ifxmips_pci_startup (void){ /*TODO: disable BAR2 & BAR3 - why was this in the origianl infineon code */ ifxmips_w32(ifxmips_r32(PCI_CR_BAR12MASK) | 0x80000000, PCI_CR_BAR12MASK); ifxmips_w32(ifxmips_r32(PCI_CR_BAR13MASK) | 0x80000000, PCI_CR_BAR13MASK); - /*use 8 dw burse length */ + /*use 8 dw burst length */ ifxmips_w32(0x303, PCI_CR_FCI_BURST_LENGTH); - ifxmips_w32(ifxmips_r32(PCI_CR_PCI_MOD) | (1 << 24), PCI_CR_PCI_MOD); wmb(); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_OUT) & ~(1 << 5), IFXMIPS_GPIO_P1_OUT); wmb(); - mdelay (1); + mdelay(1); ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P1_OUT) | (1 << 5), IFXMIPS_GPIO_P1_OUT); } @@ -287,7 +145,6 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin){ return (INT_NUM_IM1_IRL0 + 17); case 14: /* IDSEL = AD30 --> mini PCI connector */ - //return (INT_NUM_IM1_IRL0 + 14); return (INT_NUM_IM0_IRL0 + 22); default: printk("Warning: no IRQ found for PCI device in slot %d, pin %d\n", slot, pin); @@ -300,19 +157,13 @@ int pcibios_init(void){ pci_probe_only = 0; printk ("PCI: Probing PCI hardware on host bus 0.\n"); - ifxmips_pci_startup (); - // IFXMIPS_PCI_REG32(PCI_CR_CLK_CTRL_REG) &= (~8); - ifxmips_pci_mapped_cfg = ioremap_nocache(0x17000000, 0x800 * 16); - printk("IFXMips PCI mapped to 0x%08X\n", (unsigned long)ifxmips_pci_mapped_cfg); - + ifxmips_pci_mapped_cfg = (u32)ioremap_nocache(0x17000000, 0x800 * 16); + printk("IFXMips PCI mapped to 0x%08lX\n", (unsigned long)ifxmips_pci_mapped_cfg); ifxmips_pci_controller.io_map_base = (unsigned long)ioremap(IFXMIPS_PCI_IO_BASE, IFXMIPS_PCI_IO_SIZE - 1); - - printk("IFXMips PCI I/O mapped to 0x%08X\n", (unsigned long)ifxmips_pci_controller.io_map_base); - + printk("IFXMips PCI I/O mapped to 0x%08lX\n", (unsigned long)ifxmips_pci_controller.io_map_base); register_pci_controller(&ifxmips_pci_controller); - return 0; } diff --git a/target/linux/ifxmips/patches/100-board.patch b/target/linux/ifxmips/patches/100-board.patch index eea8c159d..79d18cadc 100644 --- a/target/linux/ifxmips/patches/100-board.patch +++ b/target/linux/ifxmips/patches/100-board.patch @@ -1,5 +1,7 @@ ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig +Index: linux-2.6.25.7/arch/mips/Kconfig +=================================================================== +--- linux-2.6.25.7.orig/arch/mips/Kconfig 2008-06-18 00:28:54.000000000 +0200 ++++ linux-2.6.25.7/arch/mips/Kconfig 2008-06-18 00:35:50.000000000 +0200 @@ -78,6 +78,21 @@ select SYS_SUPPORTS_LITTLE_ENDIAN select GENERIC_HARDIRQS_NO__DO_IRQ @@ -16,7 +18,7 @@ + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_HAS_EARLY_PRINTK + select HW_HAS_PCI -+ select GENERIC_GPIO ++ select GENERIC_GPIO + select SWAP_IO_SPACE + config MACH_DECSTATION @@ -30,24 +32,28 @@ endmenu ---- a/arch/mips/Makefile -+++ b/arch/mips/Makefile -@@ -282,6 +282,13 @@ - cflags-$(CONFIG_MIPS_COBALT) += -Iinclude/asm-mips/mach-cobalt +Index: linux-2.6.25.7/arch/mips/Makefile +=================================================================== +--- linux-2.6.25.7.orig/arch/mips/Makefile 2008-06-18 00:29:07.000000000 +0200 ++++ linux-2.6.25.7/arch/mips/Makefile 2008-06-18 00:35:42.000000000 +0200 +@@ -283,6 +283,13 @@ load-$(CONFIG_MIPS_COBALT) += 0xffffffff80080000 -+# + # +# Infineon IFXMIPS -+# ++# +core-$(CONFIG_IFXMIPS) += arch/mips/ifxmips/ +cflags-$(CONFIG_IFXMIPS) += -Iinclude/asm-mips/mach-ifxmips +load-$(CONFIG_IFXMIPS) += 0xffffffff80002000 + - # ++# # DECstation family # ---- a/include/asm-mips/bootinfo.h -+++ b/include/asm-mips/bootinfo.h + core-$(CONFIG_MACH_DECSTATION) += arch/mips/dec/ +Index: linux-2.6.25.7/include/asm-mips/bootinfo.h +=================================================================== +--- linux-2.6.25.7.orig/include/asm-mips/bootinfo.h 2008-06-18 00:28:54.000000000 +0200 ++++ linux-2.6.25.7/include/asm-mips/bootinfo.h 2008-06-18 00:29:08.000000000 +0200 @@ -94,6 +94,12 @@ #define MACH_MSP7120_FPGA 5 /* PMC-Sierra MSP7120 Emulation */ #define MACH_MSP_OTHER 255 /* PMC-Sierra unknown board type */ @@ -61,8 +67,10 @@ #define CL_SIZE COMMAND_LINE_SIZE extern char *system_type; ---- a/arch/mips/kernel/traps.c -+++ b/arch/mips/kernel/traps.c +Index: linux-2.6.25.7/arch/mips/kernel/traps.c +=================================================================== +--- linux-2.6.25.7.orig/arch/mips/kernel/traps.c 2008-06-18 00:28:54.000000000 +0200 ++++ linux-2.6.25.7/arch/mips/kernel/traps.c 2008-06-18 00:29:08.000000000 +0200 @@ -1379,6 +1379,7 @@ */ if (cpu_has_mips_r2) { @@ -71,3 +79,12 @@ cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7; if (cp0_perfcount_irq == cp0_compare_irq) cp0_perfcount_irq = -1; +Index: linux-2.6.25.7/arch/mips/pci/Makefile +=================================================================== +--- linux-2.6.25.7.orig/arch/mips/pci/Makefile 2008-06-18 00:34:49.000000000 +0200 ++++ linux-2.6.25.7/arch/mips/pci/Makefile 2008-06-18 00:35:03.000000000 +0200 +@@ -48,3 +48,4 @@ + obj-$(CONFIG_VICTOR_MPC30X) += fixup-mpc30x.o + obj-$(CONFIG_ZAO_CAPCELLA) += fixup-capcella.o + obj-$(CONFIG_WR_PPMC) += fixup-wrppmc.o ++obj-$(CONFIG_IFXMIPS) += pci-ifxmips.o ops-ifxmips.o |