diff options
Diffstat (limited to 'include/asm-blackfin/mach-common/bits')
| -rw-r--r-- | include/asm-blackfin/mach-common/bits/bootrom.h | 63 | ||||
| -rw-r--r-- | include/asm-blackfin/mach-common/bits/otp.h | 21 |
2 files changed, 44 insertions, 40 deletions
diff --git a/include/asm-blackfin/mach-common/bits/bootrom.h b/include/asm-blackfin/mach-common/bits/bootrom.h index bf661f0..fb97ff8 100644 --- a/include/asm-blackfin/mach-common/bits/bootrom.h +++ b/include/asm-blackfin/mach-common/bits/bootrom.h @@ -92,14 +92,6 @@ #define BOOTROM_CAPS_ADI_BOOT_STRUCTS 1 -/* Not available on initial BF54x or BF52x */ -#if (defined(__ADSPBF54x__) && __SILICON_REVISION__ < 1) || \ - (defined(__ADSPBF52x__) && __SILICON_REVISION__ < 2) -#define BOOTROM_CAPS_SYSCONTROL 0 -#else -#define BOOTROM_CAPS_SYSCONTROL 1 -#endif - #endif #ifndef BOOTROM_FOLLOWS_C_ABI @@ -108,9 +100,21 @@ #ifndef BOOTROM_CAPS_ADI_BOOT_STRUCTS #define BOOTROM_CAPS_ADI_BOOT_STRUCTS 0 #endif -#ifndef BOOTROM_CAPS_SYSCONTROL -#define BOOTROM_CAPS_SYSCONTROL 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__ @@ -132,25 +136,26 @@ typedef struct ADI_SYSCTRL_VALUES { #ifndef _BOOTROM_SYSCONTROL #define _BOOTROM_SYSCONTROL 0 #endif -static uint32_t (* const syscontrol)(uint32_t action_flags, ADI_SYSCTRL_VALUES *power_settings, void *reserved) = (void *)_BOOTROM_SYSCONTROL; +static uint32_t (* const bfrom_SysControl)(uint32_t action_flags, ADI_SYSCTRL_VALUES *power_settings, void *reserved) = (void *)_BOOTROM_SYSCONTROL; -#endif /* __ASSEMBLY__ */ - -/* 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_SOFTRESET 0x00000004 /* 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__ +/* 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 { diff --git a/include/asm-blackfin/mach-common/bits/otp.h b/include/asm-blackfin/mach-common/bits/otp.h index d529a0a..4e3f1af 100644 --- a/include/asm-blackfin/mach-common/bits/otp.h +++ b/include/asm-blackfin/mach-common/bits/otp.h @@ -9,23 +9,22 @@ #include "bootrom.h" -static uint32_t (* const otp_command)(uint32_t command, uint32_t value) = (void *)_BOOTROM_OTP_COMMAND; -static uint32_t (* const otp_read)(uint32_t page, uint32_t flags, uint64_t *page_content) = (void *)_BOOTROM_OTP_READ; -static uint32_t (* const otp_write)(uint32_t page, uint32_t flags, uint64_t *page_content) = (void *)_BOOTROM_OTP_WRITE; +static uint32_t (* const bfrom_OtpCommand)(uint32_t command, uint32_t value) = (void *)_BOOTROM_OTP_COMMAND; +static uint32_t (* const bfrom_OtpRead)(uint32_t page, uint32_t flags, uint64_t *page_content) = (void *)_BOOTROM_OTP_READ; +static uint32_t (* const bfrom_OtpWrite)(uint32_t page, uint32_t flags, uint64_t *page_content) = (void *)_BOOTROM_OTP_WRITE; #endif /* otp_command(): defines for "command" */ -#define OTP_INIT 0x00000001 -#define OTP_CLOSE 0x00000002 +#define OTP_INIT 0x00000001 +#define OTP_CLOSE 0x00000002 /* otp_{read,write}(): defines for "flags" */ -#define OTP_LOWER_HALF 0x00000000 /* select upper/lower 64-bit half (bit 0) */ -#define OTP_UPPER_HALF 0x00000001 -#define OTP_NO_ECC 0x00000010 /* do not use ECC */ -#define OTP_LOCK 0x00000020 /* sets page protection bit for page */ -#define OTP_ACCESS_READ 0x00001000 -#define OTP_ACCESS_READWRITE 0x00002000 +#define OTP_LOWER_HALF 0x00000000 /* select upper/lower 64-bit half (bit 0) */ +#define OTP_UPPER_HALF 0x00000001 +#define OTP_NO_ECC 0x00000010 /* do not use ECC */ +#define OTP_LOCK 0x00000020 /* sets page protection bit for page */ +#define OTP_CHECK_FOR_PREV_WRITE 0x00000080 /* Return values for all functions */ #define OTP_SUCCESS 0x00000000 |