From f9720205d1f847cb59e197e851b5276425363f6b Mon Sep 17 00:00:00 2001 From: Bernd Schmidt Date: Wed, 3 Oct 2007 23:41:43 +0800 Subject: Binfmt_flat: Add minimum support for the Blackfin relocations Add minimum support for the Blackfin relocations, since we don't have enough space in each reloc. The idea is to store a value with one relocation so that subsequent ones can access it. Actually, this patch is required for Blackfin. Currently if BINFMT_FLAT is enabled, git-tree kernel will fail to compile. Signed-off-by: Bernd Schmidt Signed-off-by: Bryan Wu Cc: David McCullough Cc: Greg Ungerer Cc: Miles Bader Signed-off-by: Andrew Morton --- include/asm-h8300/flat.h | 3 ++- include/asm-m32r/flat.h | 3 ++- include/asm-m68knommu/flat.h | 3 ++- include/asm-sh/flat.h | 3 ++- include/asm-v850/flat.h | 4 +++- 5 files changed, 11 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/asm-h8300/flat.h b/include/asm-h8300/flat.h index c20eee767d6..2a873508a9a 100644 --- a/include/asm-h8300/flat.h +++ b/include/asm-h8300/flat.h @@ -9,6 +9,7 @@ #define flat_argvp_envp_on_stack() 1 #define flat_old_ram_flag(flags) 1 #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) +#define flat_set_persistent(relval, p) 0 /* * on the H8 a couple of the relocations have an instruction in the @@ -18,7 +19,7 @@ */ #define flat_get_relocate_addr(rel) (rel) -#define flat_get_addr_from_rp(rp, relval, flags) \ +#define flat_get_addr_from_rp(rp, relval, flags, persistent) \ (get_unaligned(rp) & ((flags & FLAT_FLAG_GOTPIC) ? 0xffffffff: 0x00ffffff)) #define flat_put_addr_at_rp(rp, addr, rel) \ put_unaligned (((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), rp) diff --git a/include/asm-m32r/flat.h b/include/asm-m32r/flat.h index 1b285f65cab..d851cf0c4aa 100644 --- a/include/asm-m32r/flat.h +++ b/include/asm-m32r/flat.h @@ -15,9 +15,10 @@ #define flat_stack_align(sp) (*sp += (*sp & 3 ? (4 - (*sp & 3)): 0)) #define flat_argvp_envp_on_stack() 0 #define flat_old_ram_flag(flags) (flags) +#define flat_set_persistent(relval, p) 0 #define flat_reloc_valid(reloc, size) \ (((reloc) - textlen_for_m32r_lo16_data) <= (size)) -#define flat_get_addr_from_rp(rp, relval, flags) \ +#define flat_get_addr_from_rp(rp, relval, flags, persistent) \ m32r_flat_get_addr_from_rp(rp, relval, (text_len) ) #define flat_put_addr_at_rp(rp, addr, relval) \ diff --git a/include/asm-m68knommu/flat.h b/include/asm-m68knommu/flat.h index 2d836edc434..814b5174a8e 100644 --- a/include/asm-m68knommu/flat.h +++ b/include/asm-m68knommu/flat.h @@ -9,8 +9,9 @@ #define flat_argvp_envp_on_stack() 1 #define flat_old_ram_flag(flags) (flags) #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) -#define flat_get_addr_from_rp(rp, relval, flags) get_unaligned(rp) +#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp) #define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp) #define flat_get_relocate_addr(rel) (rel) +#define flat_set_persistent(relval, p) 0 #endif /* __M68KNOMMU_FLAT_H__ */ diff --git a/include/asm-sh/flat.h b/include/asm-sh/flat.h index 0d5cc04ab00..dc4f5950daf 100644 --- a/include/asm-sh/flat.h +++ b/include/asm-sh/flat.h @@ -16,8 +16,9 @@ #define flat_argvp_envp_on_stack() 0 #define flat_old_ram_flag(flags) (flags) #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) -#define flat_get_addr_from_rp(rp, relval, flags) get_unaligned(rp) +#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp) #define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp) #define flat_get_relocate_addr(rel) (rel) +#define flat_set_persistent(relval, p) 0 #endif /* __ASM_SH_FLAT_H */ diff --git a/include/asm-v850/flat.h b/include/asm-v850/flat.h index 3888f59d688..17f0ea56661 100644 --- a/include/asm-v850/flat.h +++ b/include/asm-v850/flat.h @@ -25,6 +25,7 @@ #define flat_stack_align(sp) /* nothing needed */ #define flat_argvp_envp_on_stack() 0 #define flat_old_ram_flag(flags) (flags) +#define flat_set_persistent(relval, p) 0 /* We store the type of relocation in the top 4 bits of the `relval.' */ @@ -46,7 +47,8 @@ flat_get_relocate_addr (unsigned long relval) For the v850, RP should always be half-word aligned. */ static inline unsigned long flat_get_addr_from_rp (unsigned long *rp, unsigned long relval, - unsigned long flags) + unsigned long flags, + unsigned long *persistent) { short *srp = (short *)rp; -- cgit v1.2.3-70-g09d2 From 0b95f22bd3b91c7114c6892bbfbb5a8576b27fbe Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Sun, 23 Sep 2007 00:51:32 +0800 Subject: Blackfin arch: add some missing syscall When compiling the Blackfin kernel, checksyscalls.pl will report lots of missing syscalls warnings. This patch will add some missing syscalls which make sense on Blackfin arch After appling this patch, toolchain should be rebuilt. Then recompiling the kernel with the new toolchain. Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/entry.S | 23 +++++++++++++--- include/asm-blackfin/unistd.h | 56 +++++++++++++++++++++++++++++++++++---- 2 files changed, 70 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index d61bba98fb5..96045880834 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -815,7 +815,7 @@ _extable: ALIGN ENTRY(_sys_call_table) - .long _sys_ni_syscall /* 0 - old "setup()" system call*/ + .long _sys_restart_syscall /* 0 */ .long _sys_exit .long _sys_fork .long _sys_read @@ -978,13 +978,13 @@ ENTRY(_sys_call_table) .long _sys_sched_get_priority_min /* 160 */ .long _sys_sched_rr_get_interval .long _sys_nanosleep - .long _sys_ni_syscall /* sys_mremap */ + .long _sys_mremap .long _sys_setresuid /* setresuid16 */ .long _sys_getresuid /* getresuid16 */ /* 165 */ .long _sys_ni_syscall /* for vm86 */ .long _sys_ni_syscall /* old "query_module" */ .long _sys_ni_syscall /* sys_poll */ - .long _sys_ni_syscall /* sys_nfsservctl */ + .long _sys_nfsservctl .long _sys_setresgid /* setresgid16 */ /* 170 */ .long _sys_getresgid /* getresgid16 */ .long _sys_prctl @@ -1040,7 +1040,7 @@ ENTRY(_sys_call_table) .long _sys_ni_syscall /* reserved for TUX */ .long _sys_ni_syscall .long _sys_gettid - .long _sys_ni_syscall /* 225 */ /* sys_readahead */ + .long _sys_readahead /* 225 */ .long _sys_setxattr .long _sys_lsetxattr .long _sys_fsetxattr @@ -1157,6 +1157,21 @@ ENTRY(_sys_call_table) .long _sys_shmctl .long _sys_shmdt /* 340 */ .long _sys_shmget + .long _sys_splice + .long _sys_sync_file_range + .long _sys_tee + .long _sys_vmsplice /* 345 */ + .long _sys_epoll_pwait + .long _sys_utimensat + .long _sys_signalfd + .long _sys_timerfd + .long _sys_eventfd /* 350 */ + .long _sys_pread64 + .long _sys_pwrite64 + .long _sys_fadvise64 + .long _sys_set_robust_list + .long _sys_get_robust_list /* 355 */ + .long _sys_fallocate .rept NR_syscalls-(.-_sys_call_table)/4 .long _sys_ni_syscall .endr diff --git a/include/asm-blackfin/unistd.h b/include/asm-blackfin/unistd.h index 0df9f2d322a..07ffe8b718c 100644 --- a/include/asm-blackfin/unistd.h +++ b/include/asm-blackfin/unistd.h @@ -3,6 +3,7 @@ /* * This file contains the system call numbers. */ +#define __NR_restart_syscall 0 #define __NR_exit 1 #define __NR_fork 2 #define __NR_read 3 @@ -165,13 +166,13 @@ #define __NR_sched_get_priority_min 160 #define __NR_sched_rr_get_interval 161 #define __NR_nanosleep 162 - /* 163 __NR_mremap */ +#define __NR_mremap 163 #define __NR_setresuid 164 #define __NR_getresuid 165 /* 166 __NR_vm86 */ /* 167 __NR_query_module */ /* 168 __NR_poll */ - /* 169 __NR_nfsservctl */ +#define __NR_nfsservctl 169 #define __NR_setresgid 170 #define __NR_getresgid 171 #define __NR_prctl 172 @@ -227,7 +228,7 @@ /* 222 reserved for TUX */ /* 223 reserved for TUX */ #define __NR_gettid 224 - /* 225 __NR_readahead */ +#define __NR_readahead 225 #define __NR_setxattr 226 #define __NR_lsetxattr 227 #define __NR_fsetxattr 228 @@ -287,7 +288,7 @@ #define __NR_mq_timedreceive (__NR_mq_open+3) #define __NR_mq_notify (__NR_mq_open+4) #define __NR_mq_getsetattr (__NR_mq_open+5) - /* 284 __NR_sys_kexec_load */ +#define __NR_kexec_load 284 #define __NR_waitid 285 #define __NR_add_key 286 #define __NR_request_key 287 @@ -352,9 +353,54 @@ #define __NR_shmdt 340 #define __NR_shmget 341 -#define __NR_syscall 342 +#define __NR_splice 342 +#define __NR_sync_file_range 343 +#define __NR_tee 344 +#define __NR_vmsplice 345 + +#define __NR_epoll_pwait 346 +#define __NR_utimensat 347 +#define __NR_signalfd 348 +#define __NR_timerfd 349 +#define __NR_eventfd 350 +#define __NR_pread64 351 +#define __NR_pwrite64 352 +#define __NR_fadvise64 353 +#define __NR_set_robust_list 354 +#define __NR_get_robust_list 355 +#define __NR_fallocate 356 + +#define __NR_syscall 357 #define NR_syscalls __NR_syscall +/* Old optional stuff no one actually uses */ +#define __IGNORE_sysfs +#define __IGNORE_uselib + +/* Implement the newer interfaces */ +#define __IGNORE_mmap +#define __IGNORE_poll +#define __IGNORE_select +#define __IGNORE_utime + +/* Not relevant on no-mmu */ +#define __IGNORE_swapon +#define __IGNORE_swapoff +#define __IGNORE_msync +#define __IGNORE_mlock +#define __IGNORE_munlock +#define __IGNORE_mlockall +#define __IGNORE_munlockall +#define __IGNORE_mincore +#define __IGNORE_madvise +#define __IGNORE_remap_file_pages +#define __IGNORE_mbind +#define __IGNORE_get_mempolicy +#define __IGNORE_set_mempolicy +#define __IGNORE_migrate_pages +#define __IGNORE_move_pages +#define __IGNORE_getcpu + #ifdef __KERNEL__ #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_STAT64 -- cgit v1.2.3-70-g09d2 From c58c2140f08de4ad0b0dbd48f6e78168dc321042 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Thu, 4 Oct 2007 00:35:05 +0800 Subject: Blackfin arch: gpio pinmux and resource allocation API required by BF537 on chip ethernet mac driver Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/kernel/bfin_gpio.c | 272 +++++++++++++++++++--- include/asm-blackfin/mach-bf533/bfin_serial_5xx.h | 11 +- include/asm-blackfin/mach-bf537/bfin_serial_5xx.h | 23 +- include/asm-blackfin/mach-bf537/portmux.h | 2 +- include/asm-blackfin/mach-bf561/bfin_serial_5xx.h | 11 +- include/asm-blackfin/portmux.h | 55 +++++ 6 files changed, 329 insertions(+), 45 deletions(-) (limited to 'include') diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index bafcfa52142..9f309480024 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -84,6 +84,7 @@ #include #include #include +#include #include #ifdef BF533_FAMILY @@ -115,7 +116,11 @@ static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = { }; #endif -static unsigned short reserved_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; +static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; +static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS + 16)]; +char *str_ident = NULL; + +#define RESOURCE_LABEL_SIZE 16 #ifdef CONFIG_PM static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; @@ -143,13 +148,39 @@ inline int check_gpio(unsigned short gpio) return 0; } +static void set_label(unsigned short ident, const char *label) +{ + + if (label && str_ident) { + strncpy(str_ident + ident * RESOURCE_LABEL_SIZE, label, + RESOURCE_LABEL_SIZE); + str_ident[ident * RESOURCE_LABEL_SIZE + + RESOURCE_LABEL_SIZE - 1] = 0; + } +} + +static char *get_label(unsigned short ident) +{ + if (!str_ident) + return "UNKNOWN"; + + return (str_ident[ident * RESOURCE_LABEL_SIZE] ? + (str_ident + ident * RESOURCE_LABEL_SIZE) : "UNKNOWN"); +} + +static int cmp_label(unsigned short ident, const char *label) +{ + if (label && str_ident) + return strncmp(str_ident + ident * RESOURCE_LABEL_SIZE, + label, strlen(label)); + else + return -EINVAL; +} + #ifdef BF537_FAMILY static void port_setup(unsigned short gpio, unsigned short usage) { if (usage == GPIO_USAGE) { - if (*port_fer[gpio_bank(gpio)] & gpio_bit(gpio)) - printk(KERN_WARNING "bfin-gpio: Possible Conflict with Peripheral " - "usage and GPIO %d detected!\n", gpio); *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio); } else *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio); @@ -159,6 +190,56 @@ static void port_setup(unsigned short gpio, unsigned short usage) # define port_setup(...) do { } while (0) #endif +#ifdef BF537_FAMILY + +#define PMUX_LUT_RES 0 +#define PMUX_LUT_OFFSET 1 +#define PMUX_LUT_ENTRIES 41 +#define PMUX_LUT_SIZE 2 + +static unsigned short port_mux_lut[PMUX_LUT_ENTRIES][PMUX_LUT_SIZE] = { + {P_PPI0_D13, 11}, {P_PPI0_D14, 11}, {P_PPI0_D15, 11}, + {P_SPORT1_TFS, 11}, {P_SPORT1_TSCLK, 11}, {P_SPORT1_DTPRI, 11}, + {P_PPI0_D10, 10}, {P_PPI0_D11, 10}, {P_PPI0_D12, 10}, + {P_SPORT1_RSCLK, 10}, {P_SPORT1_RFS, 10}, {P_SPORT1_DRPRI, 10}, + {P_PPI0_D8, 9}, {P_PPI0_D9, 9}, {P_SPORT1_DRSEC, 9}, + {P_SPORT1_DTSEC, 9}, {P_TMR2, 8}, {P_PPI0_FS3, 8}, {P_TMR3, 7}, + {P_SPI0_SSEL4, 7}, {P_TMR4, 6}, {P_SPI0_SSEL5, 6}, {P_TMR5, 5}, + {P_SPI0_SSEL6, 5}, {P_UART1_RX, 4}, {P_UART1_TX, 4}, {P_TMR6, 4}, + {P_TMR7, 4}, {P_UART0_RX, 3}, {P_UART0_TX, 3}, {P_DMAR0, 3}, + {P_DMAR1, 3}, {P_SPORT0_DTSEC, 1}, {P_SPORT0_DRSEC, 1}, + {P_CAN0_RX, 1}, {P_CAN0_TX, 1}, {P_SPI0_SSEL7, 1}, + {P_SPORT0_TFS, 0}, {P_SPORT0_DTPRI, 0}, {P_SPI0_SSEL2, 0}, + {P_SPI0_SSEL3, 0} +}; + +static void portmux_setup(unsigned short per, unsigned short function) +{ + u16 y, muxreg, offset; + + for (y = 0; y < PMUX_LUT_ENTRIES; y++) { + if (port_mux_lut[y][PMUX_LUT_RES] == per) { + + /* SET PORTMUX REG */ + + offset = port_mux_lut[y][PMUX_LUT_OFFSET]; + muxreg = bfin_read_PORT_MUX(); + + if (offset != 1) { + muxreg &= ~(1 << offset); + } else { + muxreg &= ~(3 << 1); + } + + muxreg |= (function << offset); + bfin_write_PORT_MUX(muxreg); + } + } +} + +#else +# define portmux_setup(...) do { } while (0) +#endif static void default_gpio(unsigned short gpio) { @@ -179,22 +260,15 @@ static void default_gpio(unsigned short gpio) static int __init bfin_gpio_init(void) { - int i; - - printk(KERN_INFO "Blackfin GPIO Controller\n"); - for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) - reserved_map[gpio_bank(i)] = 0; + str_ident = kzalloc(RESOURCE_LABEL_SIZE * 256, GFP_KERNEL); + if (!str_ident) + return -ENOMEM; -#if defined(BF537_FAMILY) && (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) -# if defined(CONFIG_BFIN_MAC_RMII) - reserved_map[gpio_bank(PORT_H)] = 0xC373; -# else - reserved_map[gpio_bank(PORT_H)] = 0xFFFF; -# endif -#endif + printk(KERN_INFO "Blackfin GPIO Controller\n"); return 0; + } arch_initcall(bfin_gpio_init); @@ -223,7 +297,7 @@ arch_initcall(bfin_gpio_init); void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ { \ unsigned long flags; \ - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ local_irq_save(flags); \ if (arg) \ gpio_bankb[gpio_bank(gpio)]->name |= gpio_bit(gpio); \ @@ -243,7 +317,7 @@ SET_GPIO(both) #define SET_GPIO_SC(name) \ void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ { \ - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ if (arg) \ gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \ else \ @@ -258,7 +332,7 @@ SET_GPIO_SC(maskb) void set_gpio_data(unsigned short gpio, unsigned short arg) { unsigned long flags; - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); local_irq_save(flags); if (arg) gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio); @@ -277,7 +351,7 @@ SET_GPIO_SC(data) void set_gpio_toggle(unsigned short gpio) { unsigned long flags; - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); local_irq_save(flags); gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio); bfin_read_CHIPID(); @@ -286,7 +360,7 @@ void set_gpio_toggle(unsigned short gpio) #else void set_gpio_toggle(unsigned short gpio) { - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio); } #endif @@ -350,7 +424,7 @@ unsigned short get_gpio_data(unsigned short gpio) { unsigned long flags; unsigned short ret; - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); local_irq_save(flags); ret = 0x01 & (gpio_bankb[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)); bfin_read_CHIPID(); @@ -494,13 +568,14 @@ u32 gpio_pm_setup(void) gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir; gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge; gpio_bank_saved[bank].both = gpio_bankb[bank]->both; - gpio_bank_saved[bank].reserved = reserved_map[bank]; + gpio_bank_saved[bank].reserved = + reserved_gpio_map[bank]; gpio = i; while (mask) { if (mask & 1) { - reserved_map[gpio_bank(gpio)] |= + reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio); bfin_gpio_wakeup_type(gpio, wakeup_flags_map[gpio]); @@ -540,7 +615,8 @@ void gpio_pm_restore(void) gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge; gpio_bankb[bank]->both = gpio_bank_saved[bank].both; - reserved_map[bank] = gpio_bank_saved[bank].reserved; + reserved_gpio_map[bank] = + gpio_bank_saved[bank].reserved; } @@ -550,6 +626,140 @@ void gpio_pm_restore(void) #endif + + + +int peripheral_request(unsigned short per, const char *label) +{ + unsigned long flags; + unsigned short ident = P_IDENT(per); + + /* + * Don't cares are pins with only one dedicated function + */ + + if (per & P_DONTCARE) + return 0; + + if (!(per & P_DEFINED)) + return -ENODEV; + + if (check_gpio(ident) < 0) + return -EINVAL; + + local_irq_save(flags); + + if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) { + printk(KERN_ERR + "%s: Peripheral %d is already reserved as GPIO by %s !\n", + __FUNCTION__, ident, get_label(ident)); + dump_stack(); + local_irq_restore(flags); + return -EBUSY; + } + + if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) { + + /* + * Pin functions like AMC address strobes my + * be requested and used by several drivers + */ + + if (!(per & P_MAYSHARE)) { + + /* + * Allow that the identical pin function can + * be requested from the same driver twice + */ + + if (cmp_label(ident, label) == 0) + goto anyway; + + printk(KERN_ERR + "%s: Peripheral %d function %d is already" + "reserved by %s !\n", + __FUNCTION__, ident, P_FUNCT2MUX(per), + get_label(ident)); + dump_stack(); + local_irq_restore(flags); + return -EBUSY; + } + + } + +anyway: + + + portmux_setup(per, P_FUNCT2MUX(per)); + + port_setup(ident, PERIPHERAL_USAGE); + + reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident); + local_irq_restore(flags); + set_label(ident, label); + + return 0; +} +EXPORT_SYMBOL(peripheral_request); + +int peripheral_request_list(unsigned short per[], const char *label) +{ + u16 cnt; + int ret; + + for (cnt = 0; per[cnt] != 0; cnt++) { + ret = peripheral_request(per[cnt], label); + if (ret < 0) + return ret; + } + + return 0; +} +EXPORT_SYMBOL(peripheral_request_list); + +void peripheral_free(unsigned short per) +{ + unsigned long flags; + unsigned short ident = P_IDENT(per); + + if (per & P_DONTCARE) + return; + + if (!(per & P_DEFINED)) + return; + + if (check_gpio(ident) < 0) + return; + + local_irq_save(flags); + + if (unlikely(!(reserved_peri_map[gpio_bank(ident)] + & gpio_bit(ident)))) { + local_irq_restore(flags); + return; + } + + if (!(per & P_MAYSHARE)) { + port_setup(ident, GPIO_USAGE); + } + + reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident); + + local_irq_restore(flags); +} +EXPORT_SYMBOL(peripheral_free); + +void peripheral_free_list(unsigned short per[]) +{ + u16 cnt; + + for (cnt = 0; per[cnt] != 0; cnt++) { + peripheral_free(per[cnt]); + } + +} +EXPORT_SYMBOL(peripheral_free_list); + /*********************************************************** * * FUNCTIONS: Blackfin GPIO Driver @@ -574,13 +784,13 @@ int gpio_request(unsigned short gpio, const char *label) local_irq_save(flags); - if (unlikely(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved!\n", gpio); dump_stack(); local_irq_restore(flags); return -EBUSY; } - reserved_map[gpio_bank(gpio)] |= gpio_bit(gpio); + reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio); local_irq_restore(flags); @@ -599,7 +809,7 @@ void gpio_free(unsigned short gpio) local_irq_save(flags); - if (unlikely(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { + if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio); dump_stack(); local_irq_restore(flags); @@ -608,7 +818,7 @@ void gpio_free(unsigned short gpio) default_gpio(gpio); - reserved_map[gpio_bank(gpio)] &= ~gpio_bit(gpio); + reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio); local_irq_restore(flags); } @@ -618,7 +828,7 @@ void gpio_direction_input(unsigned short gpio) { unsigned long flags; - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); local_irq_save(flags); gpio_bankb[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio); @@ -631,7 +841,7 @@ void gpio_direction_output(unsigned short gpio) { unsigned long flags; - BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); local_irq_save(flags); gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio); diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h index e043cafa3c4..69b9f8e120e 100644 --- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h @@ -1,5 +1,6 @@ #include #include +#include #define NR_PORTS 1 @@ -92,18 +93,24 @@ struct bfin_serial_res bfin_serial_resource[] = { } }; +#define DRIVER_NAME "bfin-uart" int nr_ports = NR_PORTS; static void bfin_serial_hw_init(struct bfin_serial_port *uart) { +#ifdef CONFIG_SERIAL_BFIN_UART0 + peripheral_request(P_UART0_TX, DRIVER_NAME); + peripheral_request(P_UART0_RX, DRIVER_NAME); +#endif + #ifdef CONFIG_SERIAL_BFIN_CTSRTS if (uart->cts_pin >= 0) { - gpio_request(uart->cts_pin, NULL); + gpio_request(uart->cts_pin, DRIVER_NAME); gpio_direction_input(uart->cts_pin); } if (uart->rts_pin >= 0) { - gpio_request(uart->rts_pin, NULL); + gpio_request(uart->rts_pin, DRIVER_NAME); gpio_direction_input(uart->rts_pin); } #endif diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h index 8f5d9c4d8d5..6fb328f5186 100644 --- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h @@ -1,5 +1,6 @@ #include #include +#include #define NR_PORTS 2 @@ -122,25 +123,29 @@ struct bfin_serial_res bfin_serial_resource[] = { int nr_ports = ARRAY_SIZE(bfin_serial_resource); +#define DRIVER_NAME "bfin-uart" + static void bfin_serial_hw_init(struct bfin_serial_port *uart) { - unsigned short val; - val = bfin_read16(BFIN_PORT_MUX); - val &= ~(PFDE | PFTE); - bfin_write16(BFIN_PORT_MUX, val); - val = bfin_read16(PORTF_FER); - val |= 0xF; - bfin_write16(PORTF_FER, val); +#ifdef CONFIG_SERIAL_BFIN_UART0 + peripheral_request(P_UART0_TX, DRIVER_NAME); + peripheral_request(P_UART0_RX, DRIVER_NAME); +#endif + +#ifdef CONFIG_SERIAL_BFIN_UART1 + peripheral_request(P_UART1_TX, DRIVER_NAME); + peripheral_request(P_UART1_RX, DRIVER_NAME); +#endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS if (uart->cts_pin >= 0) { - gpio_request(uart->cts_pin, NULL); + gpio_request(uart->cts_pin, DRIVER_NAME); gpio_direction_input(uart->cts_pin); } if (uart->rts_pin >= 0) { - gpio_request(uart->rts_pin, NULL); + gpio_request(uart->rts_pin, DRIVER_NAME); gpio_direction_output(uart->rts_pin); } #endif diff --git a/include/asm-blackfin/mach-bf537/portmux.h b/include/asm-blackfin/mach-bf537/portmux.h index 23e13c5abc4..7daa2479a73 100644 --- a/include/asm-blackfin/mach-bf537/portmux.h +++ b/include/asm-blackfin/mach-bf537/portmux.h @@ -106,4 +106,4 @@ #define P_SPI0_SSEL2 (P_DEFINED | P_IDENT(PORT_PJ11) | P_FUNCT(1)) #define P_SPI0_SSEL7 (P_DEFINED | P_IDENT(PORT_PJ5) | P_FUNCT(2)) -#endif /* _MACH_PORTMUX_H_ */ +#endif /* _MACH_PORTMUX_H_ */ diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h index e043cafa3c4..69b9f8e120e 100644 --- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h @@ -1,5 +1,6 @@ #include #include +#include #define NR_PORTS 1 @@ -92,18 +93,24 @@ struct bfin_serial_res bfin_serial_resource[] = { } }; +#define DRIVER_NAME "bfin-uart" int nr_ports = NR_PORTS; static void bfin_serial_hw_init(struct bfin_serial_port *uart) { +#ifdef CONFIG_SERIAL_BFIN_UART0 + peripheral_request(P_UART0_TX, DRIVER_NAME); + peripheral_request(P_UART0_RX, DRIVER_NAME); +#endif + #ifdef CONFIG_SERIAL_BFIN_CTSRTS if (uart->cts_pin >= 0) { - gpio_request(uart->cts_pin, NULL); + gpio_request(uart->cts_pin, DRIVER_NAME); gpio_direction_input(uart->cts_pin); } if (uart->rts_pin >= 0) { - gpio_request(uart->rts_pin, NULL); + gpio_request(uart->rts_pin, DRIVER_NAME); gpio_direction_input(uart->rts_pin); } #endif diff --git a/include/asm-blackfin/portmux.h b/include/asm-blackfin/portmux.h index 9d3681e4211..0d3f650d2d9 100644 --- a/include/asm-blackfin/portmux.h +++ b/include/asm-blackfin/portmux.h @@ -14,6 +14,12 @@ #define P_MAYSHARE 0x2000 #define P_DONTCARE 0x1000 + +int peripheral_request(unsigned short per, const char *label); +void peripheral_free(unsigned short per); +int peripheral_request_list(unsigned short per[], const char *label); +void peripheral_free_list(unsigned short per[]); + #include #include @@ -145,6 +151,22 @@ #define P_SPI2_SSEL3 P_UNDEF #endif +#ifndef P_SPI2_SSEL4 +#define P_SPI2_SSEL4 P_UNDEF +#endif + +#ifndef P_SPI2_SSEL5 +#define P_SPI2_SSEL5 P_UNDEF +#endif + +#ifndef P_SPI2_SSEL6 +#define P_SPI2_SSEL6 P_UNDEF +#endif + +#ifndef P_SPI2_SSEL7 +#define P_SPI2_SSEL7 P_UNDEF +#endif + #ifndef P_SPI2_SCK #define P_SPI2_SCK P_UNDEF #endif @@ -513,6 +535,22 @@ #define P_SPI0_SSEL3 P_UNDEF #endif +#ifndef P_SPI0_SSEL4 +#define P_SPI0_SSEL4 P_UNDEF +#endif + +#ifndef P_SPI0_SSEL5 +#define P_SPI0_SSEL5 P_UNDEF +#endif + +#ifndef P_SPI0_SSEL6 +#define P_SPI0_SSEL6 P_UNDEF +#endif + +#ifndef P_SPI0_SSEL7 +#define P_SPI0_SSEL7 P_UNDEF +#endif + #ifndef P_UART0_TX #define P_UART0_TX P_UNDEF #endif @@ -741,6 +779,23 @@ #define P_SPI1_SSEL3 P_UNDEF #endif + +#ifndef P_SPI1_SSEL4 +#define P_SPI1_SSEL4 P_UNDEF +#endif + +#ifndef P_SPI1_SSEL5 +#define P_SPI1_SSEL5 P_UNDEF +#endif + +#ifndef P_SPI1_SSEL6 +#define P_SPI1_SSEL6 P_UNDEF +#endif + +#ifndef P_SPI1_SSEL7 +#define P_SPI1_SSEL7 P_UNDEF +#endif + #ifndef P_SPI1_SCK #define P_SPI1_SCK P_UNDEF #endif -- cgit v1.2.3-70-g09d2 From cda6a20b68c1f21f4b4bc9cd3ee08494e7ebf0d5 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Thu, 4 Oct 2007 00:36:18 +0800 Subject: Blackfin arch: fix PORT_J BUG for BF537/6 EMAC driver reported by Kalle Pokki Cc: Kalle Pokki Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/kernel/bfin_gpio.c | 19 ++++++++++------- include/asm-blackfin/mach-bf537/portmux.h | 35 ++++++++++++++++++++++++++++++- 2 files changed, 45 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index 9f309480024..5d488ef965c 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -180,11 +180,13 @@ static int cmp_label(unsigned short ident, const char *label) #ifdef BF537_FAMILY static void port_setup(unsigned short gpio, unsigned short usage) { - if (usage == GPIO_USAGE) { - *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio); - } else - *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio); - SSYNC(); + if (!check_gpio(gpio)) { + if (usage == GPIO_USAGE) { + *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio); + } else + *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio); + SSYNC(); + } } #else # define port_setup(...) do { } while (0) @@ -644,11 +646,10 @@ int peripheral_request(unsigned short per, const char *label) if (!(per & P_DEFINED)) return -ENODEV; - if (check_gpio(ident) < 0) - return -EINVAL; - local_irq_save(flags); + if (!check_gpio(ident)) { + if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) { printk(KERN_ERR "%s: Peripheral %d is already reserved as GPIO by %s !\n", @@ -658,6 +659,8 @@ int peripheral_request(unsigned short per, const char *label) return -EBUSY; } + } + if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) { /* diff --git a/include/asm-blackfin/mach-bf537/portmux.h b/include/asm-blackfin/mach-bf537/portmux.h index 7daa2479a73..ae6c53b2845 100644 --- a/include/asm-blackfin/mach-bf537/portmux.h +++ b/include/asm-blackfin/mach-bf537/portmux.h @@ -106,4 +106,37 @@ #define P_SPI0_SSEL2 (P_DEFINED | P_IDENT(PORT_PJ11) | P_FUNCT(1)) #define P_SPI0_SSEL7 (P_DEFINED | P_IDENT(PORT_PJ5) | P_FUNCT(2)) -#endif /* _MACH_PORTMUX_H_ */ +#define P_MII0 {\ + P_MII0_ETxD0, \ + P_MII0_ETxD1, \ + P_MII0_ETxD2, \ + P_MII0_ETxD3, \ + P_MII0_ETxEN, \ + P_MII0_TxCLK, \ + P_MII0_PHYINT, \ + P_MII0_COL, \ + P_MII0_ERxD0, \ + P_MII0_ERxD1, \ + P_MII0_ERxD2, \ + P_MII0_ERxD3, \ + P_MII0_ERxDV, \ + P_MII0_ERxCLK, \ + P_MII0_ERxER, \ + P_MII0_CRS, \ + P_MDC, \ + P_MDIO, 0} + + +#define P_RMII0 {\ + P_MII0_ETxD0, \ + P_MII0_ETxD1, \ + P_MII0_ETxEN, \ + P_MII0_ERxD0, \ + P_MII0_ERxD1, \ + P_MII0_ERxER, \ + P_RMII0_REF_CLK, \ + P_RMII0_MDINT, \ + P_RMII0_CRS_DV, \ + P_MDC, \ + P_MDIO, 0} +#endif /* _MACH_PORTMUX_H_ */ -- cgit v1.2.3-70-g09d2