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/* Blackfin on-chip ROM API
 *
 * Copyright 2008 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __BFROM_H__
#define __BFROM_H__

#include <linux/types.h>

/* 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 */

typedef struct ADI_SYSCTRL_VALUES {
	uint16_t uwVrCtl;
	uint16_t uwPllCtl;
	uint16_t uwPllDiv;
	uint16_t uwPllLockCnt;
	uint16_t uwPllStat;
} ADI_SYSCTRL_VALUES;

static uint32_t (* const bfrom_SysControl)(uint32_t action_flags, ADI_SYSCTRL_VALUES *power_settings, void *reserved) = (void *)0xEF000038;

/* 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)
		/*
		 * We don't declare the SP as clobbered on purpose, since
		 * it confuses the heck out of the compiler, and this function
		 * never returns
		 */
		__asm__ __volatile__(
			"sp = %[stack];"
			"jump (%[bfrom_syscontrol]);"
			: : [bfrom_syscontrol] "p"(bfrom_SysControl),
				"q0"(SYSCTRL_SOFTRESET),
				"q1"(0),
				"q2"(NULL),
				[stack] "p"(new_stack)
		);
}

/* OTP Functions */
static uint32_t (* const bfrom_OtpCommand)(uint32_t command, uint32_t value) = (void *)0xEF000018;
static uint32_t (* const bfrom_OtpRead)(uint32_t page, uint32_t flags, uint64_t *page_content) = (void *)0xEF00001A;
static uint32_t (* const bfrom_OtpWrite)(uint32_t page, uint32_t flags, uint64_t *page_content) = (void *)0xEF00001C;

/* otp command: defines for "command" */
#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_CHECK_FOR_PREV_WRITE 0x00000080

/* Return values for all functions */
#define OTP_SUCCESS          0x00000000
#define OTP_MASTER_ERROR     0x001
#define OTP_WRITE_ERROR      0x003
#define OTP_READ_ERROR       0x005
#define OTP_ACC_VIO_ERROR    0x009
#define OTP_DATA_MULT_ERROR  0x011
#define OTP_ECC_MULT_ERROR   0x021
#define OTP_PREV_WR_ERROR    0x041
#define OTP_DATA_SB_WARN     0x100
#define OTP_ECC_SB_WARN      0x200

#endif

Filemanager

Name Type Size Permission Actions
Kbuild File 658 B 0644
asm-offsets.h File 35 B 0644
atomic.h File 1.55 KB 0644
barrier.h File 2.55 KB 0644
bfin-global.h File 2.8 KB 0644
bfin-lq035q1.h File 868 B 0644
bfin5xx_spi.h File 2.07 KB 0644
bfin_can.h File 36.04 KB 0644
bfin_dma.h File 5.46 KB 0644
bfin_pfmon.h File 1.11 KB 0644
bfin_ppi.h File 9.01 KB 0644
bfin_sdh.h File 7.2 KB 0644
bfin_serial.h File 17.02 KB 0644
bfin_simple_timer.h File 949 B 0644
bfin_sport.h File 1.21 KB 0644
bfin_sport3.h File 5.47 KB 0644
bfin_twi.h File 6.25 KB 0644
bfin_watchdog.h File 696 B 0644
bfrom.h File 3.36 KB 0644
bitops.h File 3.45 KB 0644
blackfin.h File 1.55 KB 0644
bug.h File 1.49 KB 0644
cache.h File 1.47 KB 0644
cacheflush.h File 3.79 KB 0644
cdef_LPBlackfin.h File 18.93 KB 0644
checksum.h File 899 B 0644
clkdev.h File 318 B 0644
clocks.h File 1.66 KB 0644
cmpxchg.h File 3.2 KB 0644
context.S File 5.92 KB 0644
cplb.h File 4.86 KB 0644
cplbinit.h File 1.6 KB 0644
cpu.h File 443 B 0644
def_LPBlackfin.h File 28.6 KB 0644
delay.h File 917 B 0644
dma-mapping.h File 1.09 KB 0644
dma.h File 9.28 KB 0644
dpmc.h File 18.24 KB 0644
early_printk.h File 1.09 KB 0644
elf.h File 4.88 KB 0644
entry.h File 5.27 KB 0644
exec.h File 37 B 0644
fixed_code.h File 806 B 0644
flat.h File 1.41 KB 0644
ftrace.h File 1.37 KB 0644
gpio.h File 5.91 KB 0644
gptimers.h File 8.95 KB 0644
hardirq.h File 301 B 0644
io.h File 1.52 KB 0644
ipipe.h File 5.81 KB 0644
ipipe_base.h File 2.38 KB 0644
irq.h File 879 B 0644
irq_handler.h File 1.93 KB 0644
irqflags.h File 7.13 KB 0644
kgdb.h File 3.23 KB 0644
l1layout.h File 879 B 0644
linkage.h File 205 B 0644
mem_init.h File 13.1 KB 0644
mem_map.h File 1.73 KB 0644
mmu.h File 713 B 0644
mmu_context.h File 5.35 KB 0644
module.h File 410 B 0644
nand.h File 895 B 0644
nmi.h File 195 B 0644
page.h File 546 B 0644
page_offset.h File 192 B 0644
pci.h File 310 B 0644
pda.h File 1.86 KB 0644
perf_event.h File 23 B 0644
pgtable.h File 3 KB 0644
pm.h File 590 B 0644
portmux.h File 16.38 KB 0644
processor.h File 3.21 KB 0644
pseudo_instructions.h File 391 B 0644
ptrace.h File 1.19 KB 0644
reboot.h File 446 B 0644
rwlock.h File 142 B 0644
scb.h File 445 B 0644
sections.h File 2 KB 0644
segment.h File 226 B 0644
smp.h File 1.34 KB 0644
spinlock.h File 1.87 KB 0644
spinlock_types.h File 495 B 0644
string.h File 1.04 KB 0644
switch_to.h File 997 B 0644
syscall.h File 2.15 KB 0644
thread_info.h File 2.66 KB 0644
time.h File 1.33 KB 0644
timex.h File 477 B 0644
tlb.h File 481 B 0644
tlbflush.h File 88 B 0644
trace.h File 2.67 KB 0644
traps.h File 4.87 KB 0644
uaccess.h File 5.79 KB 0644
unistd.h File 523 B 0644
vga.h File 29 B 0644