diff options
Diffstat (limited to 'arch/blackfin/include/asm/mach-common/bits/bootrom.h')
| -rw-r--r-- | arch/blackfin/include/asm/mach-common/bits/bootrom.h | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/mach-common/bits/bootrom.h b/arch/blackfin/include/asm/mach-common/bits/bootrom.h new file mode 100644 index 000000000..f537e93f7 --- /dev/null +++ b/arch/blackfin/include/asm/mach-common/bits/bootrom.h @@ -0,0 +1,261 @@ +/* + * Boot ROM Entry Points and such + */ + +/* These Blackfins all have a Boot ROM that is not reusable (at all): + * BF531 / BF532 / BF533 + * BF538 / BF539 + * BF561 + * So there is nothing for us to export ;( + * + * These Blackfins started to roll with the idea that the Boot ROM can + * provide useful functions, but still only a few (and not really useful): + * BF534 / BF536 / BF537 + * + * Looking forward, Boot ROM's on newer Blackfins have quite a few + * nice entry points that are usable at runtime and beyond. We'll + * only define known legacy parts (listed above) and otherwise just + * assume it's a newer part. + * + * These entry points are accomplished by placing a small jump table at + * the start of the Boot ROM. This way the addresses are fixed forever. + */ + +#ifndef __BFIN_PERIPHERAL_BOOTROM__ +#define __BFIN_PERIPHERAL_BOOTROM__ + +/* All Blackfin's have the Boot ROM entry point at the same address */ +#define _BOOTROM_RESET 0xEF000000 + +#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \ + defined(__ADSPBF538__) || defined(__ADSPBF539__) || \ + defined(__ADSPBF561__) + + /* Nothing to export */ + +#elif defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__) + + /* The BF537 family */ + +#define _BOOTROM_FINAL_INIT 0xEF000002 +/* reserved 0xEF000004 */ +#define _BOOTROM_DO_MEMORY_DMA 0xEF000006 +#define _BOOTROM_BOOT_DXE_FLASH 0xEF000008 +#define _BOOTROM_BOOT_DXE_SPI 0xEF00000A +#define _BOOTROM_BOOT_DXE_TWI 0xEF00000C +/* reserved 0xEF00000E */ +#define _BOOTROM_GET_DXE_ADDRESS_FLASH 0xEF000010 +#define _BOOTROM_GET_DXE_ADDRESS_SPI 0xEF000012 +#define _BOOTROM_GET_DXE_ADDRESS_TWI 0xEF000014 +/* reserved 0xEF000016 */ +/* reserved 0xEF000018 */ + + /* Glue to newer Boot ROMs */ +#define _BOOTROM_MDMA _BOOTROM_DO_MEMORY_DMA +#define _BOOTROM_MEMBOOT _BOOTROM_BOOT_DXE_FLASH +#define _BOOTROM_SPIBOOT _BOOTROM_BOOT_DXE_FLASH +#define _BOOTROM_TWIBOOT _BOOTROM_BOOT_DXE_TWI + +#else + + /* All the newer Boot ROMs */ + +#define _BOOTROM_FINAL_INIT 0xEF000002 +#define _BOOTROM_PDMA 0xEF000004 +#define _BOOTROM_MDMA 0xEF000006 +#define _BOOTROM_MEMBOOT 0xEF000008 +#define _BOOTROM_SPIBOOT 0xEF00000A +#define _BOOTROM_TWIBOOT 0xEF00000C +/* reserved 0xEF00000E */ +/* reserved 0xEF000010 */ +/* reserved 0xEF000012 */ +/* reserved 0xEF000014 */ +/* reserved 0xEF000016 */ +#define _BOOTROM_OTP_COMMAND 0xEF000018 +#define _BOOTROM_OTP_READ 0xEF00001A +#define _BOOTROM_OTP_WRITE 0xEF00001C +#define _BOOTROM_ECC_TABLE 0xEF00001E +#define _BOOTROM_BOOTKERNEL 0xEF000020 +#define _BOOTROM_GETPORT 0xEF000022 +#define _BOOTROM_NMI 0xEF000024 +#define _BOOTROM_HWERROR 0xEF000026 +#define _BOOTROM_EXCEPTION 0xEF000028 +#define _BOOTROM_CRC32 0xEF000030 +#define _BOOTROM_CRC32POLY 0xEF000032 +#define _BOOTROM_CRC32CALLBACK 0xEF000034 +#define _BOOTROM_CRC32INITCODE 0xEF000036 +#define _BOOTROM_SYSCONTROL 0xEF000038 +#define _BOOTROM_REV 0xEF000040 +#define _BOOTROM_SESR 0xEF001000 + +#define BOOTROM_FOLLOWS_C_ABI 1 + +#define BOOTROM_CAPS_ADI_BOOT_STRUCTS 1 + +#endif + +#ifndef BOOTROM_FOLLOWS_C_ABI +#define BOOTROM_FOLLOWS_C_ABI 0 +#endif +#ifndef BOOTROM_CAPS_ADI_BOOT_STRUCTS +#define BOOTROM_CAPS_ADI_BOOT_STRUCTS 0 +#endif + +/* Possible syscontrol action flags */ +#define SYSCTRL_READ 0x00000000 /* read registers */ +#define SYSCTRL_WRITE 0x00000001 /* write registers */ +#define SYSCTRL_SYSRESET 0x00000002 /* perform system reset */ +#define SYSCTRL_CORERESET 0x00000004 /* perform core reset */ +#define SYSCTRL_SOFTRESET 0x00000006 /* perform core and system reset */ +#define SYSCTRL_VRCTL 0x00000010 /* read/write VR_CTL register */ +#define SYSCTRL_EXTVOLTAGE 0x00000020 /* VDDINT supplied externally */ +#define SYSCTRL_INTVOLTAGE 0x00000000 /* VDDINT generated by on-chip regulator */ +#define SYSCTRL_OTPVOLTAGE 0x00000040 /* For Factory Purposes Only */ +#define SYSCTRL_PLLCTL 0x00000100 /* read/write PLL_CTL register */ +#define SYSCTRL_PLLDIV 0x00000200 /* read/write PLL_DIV register */ +#define SYSCTRL_LOCKCNT 0x00000400 /* read/write PLL_LOCKCNT register */ +#define SYSCTRL_PLLSTAT 0x00000800 /* read/write PLL_STAT register */ + +#ifndef __ASSEMBLY__ + +#if BOOTROM_FOLLOWS_C_ABI +# define BOOTROM_CALLED_FUNC_ATTR +#else +# define BOOTROM_CALLED_FUNC_ATTR __attribute__((saveall)) +#endif + +/* Structures for the syscontrol() function */ +typedef struct ADI_SYSCTRL_VALUES { + uint16_t uwVrCtl; + uint16_t uwPllCtl; + uint16_t uwPllDiv; + uint16_t uwPllLockCnt; + uint16_t uwPllStat; +} ADI_SYSCTRL_VALUES; + +#ifndef _BOOTROM_SYSCONTROL +#define _BOOTROM_SYSCONTROL 0 +#endif +static uint32_t (* const bfrom_SysControl)(uint32_t action_flags, ADI_SYSCTRL_VALUES *power_settings, void *reserved) = (void *)_BOOTROM_SYSCONTROL; + +/* We need a dedicated function since we need to screw with the stack pointer + * when resetting. The on-chip ROM will save/restore registers on the stack + * when doing a system reset, so the stack cannot be outside of the chip. + */ +__attribute__((__noreturn__)) +static inline void bfrom_SoftReset(void *new_stack) +{ + while (1) + __asm__ __volatile__( + "sp = %[stack];" + "jump (%[bfrom_syscontrol]);" + : : [bfrom_syscontrol] "p"(bfrom_SysControl), + "q0"(SYSCTRL_SOFTRESET), + "q1"(0), + "q2"(NULL), + [stack] "p"(new_stack) + ); +} + +/* Structures for working with LDRs and boot rom callbacks */ +typedef struct ADI_BOOT_HEADER { + int32_t dBlockCode; + void *pTargetAddress; + int32_t dByteCount; + int32_t dArgument; +} ADI_BOOT_HEADER; + +typedef struct ADI_BOOT_BUFFER { + void *pSource; + int32_t dByteCount; +} ADI_BOOT_BUFFER; + +typedef struct ADI_BOOT_DATA { + void *pSource; + void *pDestination; + int16_t *pControlRegister; + int16_t *pDmaControlRegister; + int32_t dControlValue; + int32_t dByteCount; + int32_t dFlags; + int16_t uwDataWidth; + int16_t uwSrcModifyMult; + int16_t uwDstModifyMult; + int16_t uwHwait; + int16_t uwSsel; + int16_t uwUserShort; + int32_t dUserLong; + int32_t dReserved2; + void *pErrorFunction; + void *pLoadFunction; + void *pCallBackFunction; + ADI_BOOT_HEADER *pHeader; + void *pTempBuffer; + void *pTempCurrent; + int32_t dTempByteCount; + int32_t dBlockCount; + int32_t dClock; + void *pLogBuffer; + void *pLogCurrent; + int32_t dLogByteCount; +} ADI_BOOT_DATA; + +typedef void ADI_BOOT_HOOK_FUNC (ADI_BOOT_DATA *); + +#ifndef _BOOTROM_MEMBOOT +#define _BOOTROM_MEMBOOT 0 +#endif +static uint32_t (* const bfrom_MemBoot)(void *pBootStream, int32_t dFlags, int32_t dBlockCount, ADI_BOOT_HOOK_FUNC *pCallHook) = (void *)_BOOTROM_MEMBOOT; + +#ifndef _BOOTROM_TWIBOOT +#define _BOOTROM_TWIBOOT 0 +#endif +static uint32_t (* const bfrom_TwiBoot)(int32_t dTwiAddress, int32_t dFlags, int32_t dBlockCount, ADI_BOOT_HOOK_FUNC *pCallHook) = (void *)_BOOTROM_TWIBOOT; + +#ifndef _BOOTROM_SPIBOOT +#define _BOOTROM_SPIBOOT 0 +#endif +static uint32_t (* const bfrom_SpiBoot)(int32_t dSpiAddress, int32_t dFlags, int32_t dBlockCount, ADI_BOOT_HOOK_FUNC *pCallHook) = (void *)_BOOTROM_SPIBOOT; + +#ifndef _BOOTROM_OTPBOOT +#define _BOOTROM_OTPBOOT 0 +#endif +static uint32_t (* const bfrom_OtpBoot)(int32_t dOtpAddress, int32_t dFlags, int32_t dBlockCount, ADI_BOOT_HOOK_FUNC *pCallHook) = (void *)_BOOTROM_OTPBOOT; + +#ifndef _BOOTROM_NANDBOOT +#define _BOOTROM_NANDBOOT 0 +#endif +static uint32_t (* const bfrom_NandBoot)(int32_t dNandAddress, int32_t dFlags, int32_t dBlockCount, ADI_BOOT_HOOK_FUNC *pCallHook) = (void *)_BOOTROM_NANDBOOT; + +#endif /* __ASSEMBLY__ */ + +/* Bit defines for ADI_BOOT_DATA->dFlags */ +#define BFLAG_DMACODE_MASK 0x0000000F +#define BFLAG_SAFE 0x00000010 +#define BFLAG_AUX 0x00000020 +#define BFLAG_FILL 0x00000100 +#define BFLAG_QUICKBOOT 0x00000200 +#define BFLAG_CALLBACK 0x00000400 +#define BFLAG_INIT 0x00000800 +#define BFLAG_IGNORE 0x00001000 +#define BFLAG_INDIRECT 0x00002000 +#define BFLAG_FIRST 0x00004000 +#define BFLAG_FINAL 0x00008000 +#define BFLAG_HOOK 0x00400000 +#define BFLAG_HDRINDIRECT 0x00800000 +#define BFLAG_TYPE_MASK 0x00300000 +#define BFLAG_TYPE_1 0x00000000 +#define BFLAG_TYPE_2 0x00100000 +#define BFLAG_TYPE_3 0x00200000 +#define BFLAG_TYPE_4 0x00300000 +#define BFLAG_FASTREAD 0x00400000 +#define BFLAG_NOAUTO 0x01000000 +#define BFLAG_PERIPHERAL 0x02000000 +#define BFLAG_SLAVE 0x04000000 +#define BFLAG_WAKEUP 0x08000000 +#define BFLAG_NEXTDXE 0x10000000 +#define BFLAG_RETURN 0x20000000 +#define BFLAG_RESET 0x40000000 +#define BFLAG_NONRESTORE 0x80000000 + +#endif |