From 64307f7db3690140a16c6748e65068f8a279877c Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 29 Oct 2007 16:55:18 +0800 Subject: Blackfin arch: add NFC driver support in BF527-EZKIT board Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf527/dma.h | 7 ++++++- include/asm-blackfin/mach-bf548/portmux.h | 14 ++++++++++++++ 2 files changed, 20 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-blackfin/mach-bf527/dma.h b/include/asm-blackfin/mach-bf527/dma.h index a41627ae9134..2dfee12864f6 100644 --- a/include/asm-blackfin/mach-bf527/dma.h +++ b/include/asm-blackfin/mach-bf527/dma.h @@ -35,7 +35,6 @@ #define MAX_BLACKFIN_DMA_CHANNEL 16 #define CH_PPI 0 /* PPI receive/transmit or NFC */ -#define CH_NFC 0 /* PPI receive/transmit or NFC */ #define CH_EMAC_RX 1 /* Ethernet MAC receive or HOSTDP */ #define CH_EMAC_HOSTDP 1 /* Ethernet MAC receive or HOSTDP */ #define CH_EMAC_TX 2 /* Ethernet MAC transmit or NFC */ @@ -54,6 +53,12 @@ #define CH_MEM_STREAM1_DEST 14 /* TX */ #define CH_MEM_STREAM1_SRC 15 /* RX */ +#if defined(CONFIG_BF527_NAND_D_PORTF) +#define CH_NFC CH_PPI /* PPI receive/transmit or NFC */ +#elif defined(CONFIG_BF527_NAND_D_PORTH) +#define CH_NFC CH_EMAC_TX /* PPI receive/transmit or NFC */ +#endif + extern int channel2irq(unsigned int channel); extern struct dma_register *base_addr[]; diff --git a/include/asm-blackfin/mach-bf548/portmux.h b/include/asm-blackfin/mach-bf548/portmux.h index b382deb501a7..6b485120015f 100644 --- a/include/asm-blackfin/mach-bf548/portmux.h +++ b/include/asm-blackfin/mach-bf548/portmux.h @@ -267,4 +267,18 @@ #define P_AMC_BG (P_DEFINED | P_IDENT(GPIO_PJ12) | P_FUNCT(0)) #define P_AMC_BGH (P_DEFINED | P_IDENT(GPIO_PJ13) | P_FUNCT(0)) + +#define P_NAND_D0 (P_DONTCARE) +#define P_NAND_D1 (P_DONTCARE) +#define P_NAND_D2 (P_DONTCARE) +#define P_NAND_D3 (P_DONTCARE) +#define P_NAND_D4 (P_DONTCARE) +#define P_NAND_D5 (P_DONTCARE) +#define P_NAND_D6 (P_DONTCARE) +#define P_NAND_D7 (P_DONTCARE) +#define P_NAND_WE (P_DONTCARE) +#define P_NAND_RE (P_DONTCARE) +#define P_NAND_CLE (P_DONTCARE) +#define P_NAND_ALE (P_DONTCARE) + #endif /* _MACH_PORTMUX_H_ */ -- cgit v1.2.3 From 4ad1ec7154d7e26c1bd82c03c44690ba2b566f2f Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 29 Oct 2007 18:02:09 +0800 Subject: Blackfin arch: add support for checking/clearing overruns in generic purpose Timer API Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/kernel/gptimers.c | 47 +++++++++++++++++++++++++++++++++++------ include/asm-blackfin/gptimers.h | 2 ++ 2 files changed, 42 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c index cb7ba9bfc79c..5cf4bdb1df3b 100644 --- a/arch/blackfin/kernel/gptimers.c +++ b/arch/blackfin/kernel/gptimers.c @@ -20,8 +20,7 @@ #else # define tassert(expr) \ if (!(expr)) \ - printk(KERN_DEBUG "%s:%s:%i: Assertion failed: " #expr "\n", \ - __FILE__, __func__, __LINE__); + printk(KERN_DEBUG "%s:%s:%i: Assertion failed: " #expr "\n", __FILE__, __func__, __LINE__); #endif #define BFIN_TIMER_NUM_GROUP (BFIN_TIMER_OCTET(MAX_BLACKFIN_GPTIMERS - 1) + 1) @@ -70,7 +69,7 @@ static volatile GPTIMER_group_regs *const group_regs[BFIN_TIMER_NUM_GROUP] = #endif }; -static uint32_t const dis_mask[MAX_BLACKFIN_GPTIMERS] = +static uint32_t const trun_mask[MAX_BLACKFIN_GPTIMERS] = { TIMER_STATUS_TRUN0, TIMER_STATUS_TRUN1, @@ -90,7 +89,27 @@ static uint32_t const dis_mask[MAX_BLACKFIN_GPTIMERS] = #endif }; -static uint32_t const irq_mask[MAX_BLACKFIN_GPTIMERS] = +static uint32_t const tovf_mask[MAX_BLACKFIN_GPTIMERS] = +{ + TIMER_STATUS_TOVF0, + TIMER_STATUS_TOVF1, + TIMER_STATUS_TOVF2, +#if (MAX_BLACKFIN_GPTIMERS > 3) + TIMER_STATUS_TOVF3, + TIMER_STATUS_TOVF4, + TIMER_STATUS_TOVF5, + TIMER_STATUS_TOVF6, + TIMER_STATUS_TOVF7, +#endif +#if (MAX_BLACKFIN_GPTIMERS > 8) + TIMER_STATUS_TOVF8, + TIMER_STATUS_TOVF9, + TIMER_STATUS_TOVF10, + TIMER_STATUS_TOVF11, +#endif +}; + +static uint32_t const timil_mask[MAX_BLACKFIN_GPTIMERS] = { TIMER_STATUS_TIMIL0, TIMER_STATUS_TIMIL1, @@ -165,17 +184,31 @@ EXPORT_SYMBOL(set_gptimer_status); uint16_t get_gptimer_intr(int timer_id) { tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return (group_regs[BFIN_TIMER_OCTET(timer_id)]->status & irq_mask[timer_id]) ? 1 : 0; + return (group_regs[BFIN_TIMER_OCTET(timer_id)]->status & timil_mask[timer_id]) ? 1 : 0; } EXPORT_SYMBOL(get_gptimer_intr); void clear_gptimer_intr(int timer_id) { tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - group_regs[BFIN_TIMER_OCTET(timer_id)]->status = irq_mask[timer_id]; + group_regs[BFIN_TIMER_OCTET(timer_id)]->status = timil_mask[timer_id]; } EXPORT_SYMBOL(clear_gptimer_intr); +uint16_t get_gptimer_over(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + return (group_regs[BFIN_TIMER_OCTET(timer_id)]->status & tovf_mask[timer_id]) ? 1 : 0; +} +EXPORT_SYMBOL(get_gptimer_over); + +void clear_gptimer_over(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + group_regs[BFIN_TIMER_OCTET(timer_id)]->status = tovf_mask[timer_id]; +} +EXPORT_SYMBOL(clear_gptimer_over); + void set_gptimer_config(int timer_id, uint16_t config) { tassert(timer_id < MAX_BLACKFIN_GPTIMERS); @@ -214,7 +247,7 @@ void disable_gptimers(uint16_t mask) } for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i) if (mask & (1 << i)) - group_regs[BFIN_TIMER_OCTET(i)]->status |= dis_mask[i]; + group_regs[BFIN_TIMER_OCTET(i)]->status |= trun_mask[i]; SSYNC(); } EXPORT_SYMBOL(disable_gptimers); diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h index c97ab03e43a6..8265ea473d5b 100644 --- a/include/asm-blackfin/gptimers.h +++ b/include/asm-blackfin/gptimers.h @@ -197,6 +197,8 @@ uint32_t get_gptimer_period (int timer_id); uint32_t get_gptimer_count (int timer_id); uint16_t get_gptimer_intr (int timer_id); void clear_gptimer_intr (int timer_id); +uint16_t get_gptimer_over (int timer_id); +void clear_gptimer_over (int timer_id); void set_gptimer_config (int timer_id, uint16_t config); uint16_t get_gptimer_config (int timer_id); void set_gptimer_pulse_hi (int timer_id); -- cgit v1.2.3 From 15b3ad6a4b348ea53ea1a45f9b166ac31c4b3f39 Mon Sep 17 00:00:00 2001 From: Robin Getz Date: Mon, 29 Oct 2007 18:17:07 +0800 Subject: Blackfin arch: Add missing definitions of BF54x Signed-off-by: Robin Getz Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf548/defBF54x_base.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/asm-blackfin/mach-bf548/defBF54x_base.h b/include/asm-blackfin/mach-bf548/defBF54x_base.h index 1d365c844ffe..da979cb62f7d 100644 --- a/include/asm-blackfin/mach-bf548/defBF54x_base.h +++ b/include/asm-blackfin/mach-bf548/defBF54x_base.h @@ -2252,6 +2252,13 @@ #define PLL_OFF 0x2 /* Disable PLL */ #define DF 0x1 /* Divide Frequency */ +/* SWRST Masks */ +#define SYSTEM_RESET 0x0007 /* Initiates A System Software Reset */ +#define DOUBLE_FAULT 0x0008 /* Core Double Fault Causes Reset */ +#define RESET_DOUBLE 0x2000 /* SW Reset Generated By Core Double-Fault */ +#define RESET_WDOG 0x4000 /* SW Reset Generated By Watchdog Timer */ +#define RESET_SOFTWARE 0x8000 /* SW Reset Occurred Since Last Read Of SWRST */ + /* Bit masks for PLL_STAT */ #define PLL_LOCKED 0x20 /* PLL Locked Status */ -- cgit v1.2.3 From 9f336a53266f43ae1002f4aaad5373944589c828 Mon Sep 17 00:00:00 2001 From: Robin Getz Date: Mon, 29 Oct 2007 18:23:28 +0800 Subject: Blackfin arch: ensure that speculative loads of bad pointers don't cause us to do bad things. Fix/change formatting of a few more things. Signed-off-by: Robin Getz Signed-off-by: Bryan Wu --- arch/blackfin/kernel/fixed_code.S | 14 ++++++++++++++ arch/blackfin/kernel/setup.c | 2 ++ arch/blackfin/mach-common/entry.S | 2 +- include/asm-blackfin/bfin-global.h | 1 + include/asm-blackfin/fixed_code.h | 4 +++- 5 files changed, 21 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/blackfin/kernel/fixed_code.S b/arch/blackfin/kernel/fixed_code.S index d8b1ebc70996..90262691b11a 100644 --- a/arch/blackfin/kernel/fixed_code.S +++ b/arch/blackfin/kernel/fixed_code.S @@ -129,4 +129,18 @@ ENTRY(_atomic_xor32) rts; ENDPROC (_atomic_ior32) +.align 16 + /* + * safe_user_instruction + * Four NOPS are enough to allow the pipeline to speculativily load + * execute anything it wants. After that, things have gone bad, and + * we are stuck - so panic. Since we might be in user space, we can't + * call panic, so just cause a unhandled exception, this should cause + * a dump of the trace buffer so we can tell were we are, and a reboot + */ +ENTRY(_safe_user_instruction) + NOP; NOP; NOP; NOP; + EXCPT 0x4; +ENDPROC(_safe_user_instruction) + ENTRY(_fixed_code_end) diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index fc22ec8c2f47..934234f43839 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -431,6 +431,8 @@ void __init setup_arch(char **cmdline_p) != ATOMIC_AND32 - FIXED_CODE_START); BUG_ON((char *)&atomic_xor32 - (char *)&fixed_code_start != ATOMIC_XOR32 - FIXED_CODE_START); + BUG_ON((char *)&safe_user_instruction - (char *)&fixed_code_start + != SAFE_USER_INSTRUCTION - FIXED_CODE_START); init_exception_vectors(); bf53x_cache_init(); diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index e3ad5802868a..1b13fa470977 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -917,7 +917,7 @@ ENTRY(_ex_table) .long _ex_soft_bp /* 0x01 - User Defined - Software breakpoint */ .long _ex_replaceable /* 0x02 - User Defined */ .long _ex_trap_c /* 0x03 - User Defined - userspace stack overflow */ - .long _ex_replaceable /* 0x04 - User Defined */ + .long _ex_trap_c /* 0x04 - User Defined - dump trace buffer */ .long _ex_replaceable /* 0x05 - User Defined */ .long _ex_replaceable /* 0x06 - User Defined */ .long _ex_replaceable /* 0x07 - User Defined */ diff --git a/include/asm-blackfin/bfin-global.h b/include/asm-blackfin/bfin-global.h index 14cb8d35924e..0212e180b90e 100644 --- a/include/asm-blackfin/bfin-global.h +++ b/include/asm-blackfin/bfin-global.h @@ -80,6 +80,7 @@ extern int atomic_sub32(void); extern int atomic_ior32(void); extern int atomic_and32(void); extern int atomic_xor32(void); +extern void safe_user_instruction(void); extern void sigreturn_stub(void); extern void *l1_data_A_sram_alloc(size_t); diff --git a/include/asm-blackfin/fixed_code.h b/include/asm-blackfin/fixed_code.h index e6df84ee1557..37db66c7030d 100644 --- a/include/asm-blackfin/fixed_code.h +++ b/include/asm-blackfin/fixed_code.h @@ -17,4 +17,6 @@ #define ATOMIC_SEQS_END 0x480 -#define FIXED_CODE_END 0x480 +#define SAFE_USER_INSTRUCTION 0x480 + +#define FIXED_CODE_END 0x490 -- cgit v1.2.3 From be0f3131a9cc7239d438b5016643e3eb9c8d8c21 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Tue, 30 Oct 2007 11:53:55 +0800 Subject: Blackfin arch: Do not pollute name space used in linux-2.6.x/sound Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf527/defBF52x_base.h | 86 ++++++++++++------------- 1 file changed, 43 insertions(+), 43 deletions(-) (limited to 'include') diff --git a/include/asm-blackfin/mach-bf527/defBF52x_base.h b/include/asm-blackfin/mach-bf527/defBF52x_base.h index d6c24c54699d..fc69cf93f149 100644 --- a/include/asm-blackfin/mach-bf527/defBF52x_base.h +++ b/include/asm-blackfin/mach-bf527/defBF52x_base.h @@ -1718,55 +1718,55 @@ /* Bit masks for HOST_CONTROL */ -#define HOST_EN 0x1 /* Host Enable */ -#define nHOST_EN 0x0 -#define HOST_END 0x2 /* Host Endianess */ -#define nHOST_END 0x0 -#define DATA_SIZE 0x4 /* Data Size */ -#define nDATA_SIZE 0x0 -#define HOST_RST 0x8 /* Host Reset */ -#define nHOST_RST 0x0 -#define HRDY_OVR 0x20 /* Host Ready Override */ -#define nHRDY_OVR 0x0 -#define INT_MODE 0x40 /* Interrupt Mode */ -#define nINT_MODE 0x0 -#define BT_EN 0x80 /* Bus Timeout Enable */ -#define nBT_EN 0x0 -#define EHW 0x100 /* Enable Host Write */ -#define nEHW 0x0 -#define EHR 0x200 /* Enable Host Read */ -#define nEHR 0x0 -#define BDR 0x400 /* Burst DMA Requests */ -#define nBDR 0x0 +#define HOST_CNTR_HOST_EN 0x1 /* Host Enable */ +#define HOST_CNTR_nHOST_EN 0x0 +#define HOST_CNTR_HOST_END 0x2 /* Host Endianess */ +#define HOST_CNTR_nHOST_END 0x0 +#define HOST_CNTR_DATA_SIZE 0x4 /* Data Size */ +#define HOST_CNTR_nDATA_SIZE 0x0 +#define HOST_CNTR_HOST_RST 0x8 /* Host Reset */ +#define HOST_CNTR_nHOST_RST 0x0 +#define HOST_CNTR_HRDY_OVR 0x20 /* Host Ready Override */ +#define HOST_CNTR_nHRDY_OVR 0x0 +#define HOST_CNTR_INT_MODE 0x40 /* Interrupt Mode */ +#define HOST_CNTR_nINT_MODE 0x0 +#define HOST_CNTR_BT_EN 0x80 /* Bus Timeout Enable */ +#define HOST_CNTR_ nBT_EN 0x0 +#define HOST_CNTR_EHW 0x100 /* Enable Host Write */ +#define HOST_CNTR_nEHW 0x0 +#define HOST_CNTR_EHR 0x200 /* Enable Host Read */ +#define HOST_CNTR_nEHR 0x0 +#define HOST_CNTR_BDR 0x400 /* Burst DMA Requests */ +#define HOST_CNTR_nBDR 0x0 /* Bit masks for HOST_STATUS */ -#define READY 0x1 /* DMA Ready */ -#define nREADY 0x0 -#define FIFOFULL 0x2 /* FIFO Full */ -#define nFIFOFULL 0x0 -#define FIFOEMPTY 0x4 /* FIFO Empty */ -#define nFIFOEMPTY 0x0 -#define COMPLETE 0x8 /* DMA Complete */ -#define nCOMPLETE 0x0 -#define HSHK 0x10 /* Host Handshake */ -#define nHSHK 0x0 -#define TIMEOUT 0x20 /* Host Timeout */ -#define nTIMEOUT 0x0 -#define HIRQ 0x40 /* Host Interrupt Request */ -#define nHIRQ 0x0 -#define ALLOW_CNFG 0x80 /* Allow New Configuration */ -#define nALLOW_CNFG 0x0 -#define DMA_DIR 0x100 /* DMA Direction */ -#define nDMA_DIR 0x0 -#define BTE 0x200 /* Bus Timeout Enabled */ -#define nBTE 0x0 -#define HOSTRD_DONE 0x8000 /* Host Read Completion Interrupt */ -#define nHOSTRD_DONE 0x0 +#define HOST_STAT_READY 0x1 /* DMA Ready */ +#define HOST_STAT_nREADY 0x0 +#define HOST_STAT_FIFOFULL 0x2 /* FIFO Full */ +#define HOST_STAT_nFIFOFULL 0x0 +#define HOST_STAT_FIFOEMPTY 0x4 /* FIFO Empty */ +#define HOST_STAT_nFIFOEMPTY 0x0 +#define HOST_STAT_COMPLETE 0x8 /* DMA Complete */ +#define HOST_STAT_nCOMPLETE 0x0 +#define HOST_STAT_HSHK 0x10 /* Host Handshake */ +#define HOST_STAT_nHSHK 0x0 +#define HOST_STAT_TIMEOUT 0x20 /* Host Timeout */ +#define HOST_STAT_nTIMEOUT 0x0 +#define HOST_STAT_HIRQ 0x40 /* Host Interrupt Request */ +#define HOST_STAT_nHIRQ 0x0 +#define HOST_STAT_ALLOW_CNFG 0x80 /* Allow New Configuration */ +#define HOST_STAT_nALLOW_CNFG 0x0 +#define HOST_STAT_DMA_DIR 0x100 /* DMA Direction */ +#define HOST_STAT_nDMA_DIR 0x0 +#define HOST_STAT_BTE 0x200 /* Bus Timeout Enabled */ +#define HOST_STAT_nBTE 0x0 +#define HOST_STAT_HOSTRD_DONE 0x8000 /* Host Read Completion Interrupt */ +#define HOST_STAT_nHOSTRD_DONE 0x0 /* Bit masks for HOST_TIMEOUT */ -#define COUNT_TIMEOUT 0x7ff /* Host Timeout count */ +#define HOST_COUNT_TIMEOUT 0x7ff /* Host Timeout count */ /* Bit masks for CNT_CONFIG */ -- cgit v1.2.3 From 41241c17eb11df08efa81727f9c01225cd0f56b3 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 30 Oct 2007 12:03:47 +0800 Subject: Blackfin arch: Add missing definitions for BF561 Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf561/defBF561.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-blackfin/mach-bf561/defBF561.h b/include/asm-blackfin/mach-bf561/defBF561.h index bf7dc4e00065..7945e8a3a841 100644 --- a/include/asm-blackfin/mach-bf561/defBF561.h +++ b/include/asm-blackfin/mach-bf561/defBF561.h @@ -55,6 +55,9 @@ /* For MMR's that are reserved on Core B, set up defines to better integrate with other ports */ #define SWRST SICA_SWRST #define SYSCR SICA_SYSCR +#define RESET_DOUBLE (SWRST_DBL_FAULT_B|SWRST_DBL_FAULT_A) +#define RESET_WDOG (SWRST_WDT_B|SWRST_WDT_A) +#define RESET_SOFTWARE (SWRST_OCCURRED) /* System Reset and Interrupt Controller registers for core A (0xFFC0 0100-0xFFC0 01FF) */ #define SICA_SWRST 0xFFC00100 /* Software Reset register */ -- cgit v1.2.3 From 2ea4649b3634b9dbd098d0d8be65304eb2ea3a9c Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 30 Oct 2007 12:04:53 +0800 Subject: Blackfin arch: use a less common define name in BF549 Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf548/defBF549.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-blackfin/mach-bf548/defBF549.h b/include/asm-blackfin/mach-bf548/defBF549.h index 4e46d657e50e..fcb72b41e007 100644 --- a/include/asm-blackfin/mach-bf548/defBF549.h +++ b/include/asm-blackfin/mach-bf548/defBF549.h @@ -1671,7 +1671,7 @@ /* Bit masks for MXVR_DMAx_CONFIG */ #define MDMAEN 0x1 /* DMA Channel Enable */ -#define DD 0x2 /* DMA Channel Direction */ +#define DMADD 0x2 /* DMA Channel Direction */ #define BY4SWAPEN 0x20 /* DMA Channel Four Byte Swap Enable */ #define LCHAN 0x3c0 /* DMA Channel Logical Channel */ #define BITSWAPEN 0x400 /* DMA Channel Bit Swap Enable */ -- cgit v1.2.3