diff options
Diffstat (limited to 'arch/arm/mach-bcmring/csp/chipc/chipcHw_reset.c')
| -rw-r--r-- | arch/arm/mach-bcmring/csp/chipc/chipcHw_reset.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/arch/arm/mach-bcmring/csp/chipc/chipcHw_reset.c b/arch/arm/mach-bcmring/csp/chipc/chipcHw_reset.c deleted file mode 100644 index f95ce913fa1..00000000000 --- a/arch/arm/mach-bcmring/csp/chipc/chipcHw_reset.c +++ /dev/null @@ -1,125 +0,0 @@ -/***************************************************************************** -* Copyright 2003 - 2008 Broadcom Corporation. All rights reserved. -* -* Unless you and Broadcom execute a separate written software license -* agreement governing use of this software, this software is licensed to you -* under the terms of the GNU General Public License version 2, available at -* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). -* -* Notwithstanding the above, under no circumstances may you combine this -* software in any way with any other Broadcom software provided under a -* license other than the GPL, without Broadcom's express prior written -* consent. -*****************************************************************************/ - -/* ---- Include Files ---------------------------------------------------- */ -#include <linux/types.h> -#include <mach/csp/chipcHw_def.h> -#include <mach/csp/chipcHw_inline.h> -#include <mach/csp/intcHw_reg.h> -#include <asm/cacheflush.h> - -/* ---- Private Constants and Types --------------------------------------- */ -/* ---- Private Variables ------------------------------------------------- */ -void chipcHw_reset_run_from_aram(void); - -typedef void (*RUNFUNC) (void); - -/****************************************************************************/ -/** -* @brief warmReset -* -* @note warmReset configures the clocks which are not reset back to the state -* required to execute on reset. To do so we need to copy the code into internal -* memory to change the ARM clock while we are not executing from DDR. -*/ -/****************************************************************************/ -void chipcHw_reset(uint32_t mask) -{ - int i = 0; - RUNFUNC runFunc = (RUNFUNC) (unsigned long)MM_ADDR_IO_ARAM; - - /* Disable all interrupts */ - intcHw_irq_disable(INTCHW_INTC0, 0xffffffff); - intcHw_irq_disable(INTCHW_INTC1, 0xffffffff); - intcHw_irq_disable(INTCHW_SINTC, 0xffffffff); - - { - REG_LOCAL_IRQ_SAVE; - if (mask & chipcHw_REG_SOFT_RESET_CHIP_SOFT) { - chipcHw_softReset(chipcHw_REG_SOFT_RESET_CHIP_SOFT); - } - /* Bypass the PLL clocks before reboot */ - writel(readl(&pChipcHw->UARTClock) | chipcHw_REG_PLL_CLOCK_BYPASS_SELECT, - &pChipcHw->UARTClock); - writel(readl(&pChipcHw->SPIClock) | chipcHw_REG_PLL_CLOCK_BYPASS_SELECT, - &pChipcHw->SPIClock); - - /* Copy the chipcHw_warmReset_run_from_aram function into ARAM */ - do { - writel(((uint32_t *) &chipcHw_reset_run_from_aram)[i], ((uint32_t __iomem *) MM_IO_BASE_ARAM) + i); - i++; - } while (readl(((uint32_t __iomem*) MM_IO_BASE_ARAM) + i - 1) != 0xe1a0f00f); /* 0xe1a0f00f == asm ("mov r15, r15"); */ - - flush_cache_all(); - - /* run the function from ARAM */ - runFunc(); - - /* Code will never get here, but include it to balance REG_LOCAL_IRQ_SAVE above */ - REG_LOCAL_IRQ_RESTORE; - } -} - -/* This function must run from internal memory */ -void chipcHw_reset_run_from_aram(void) -{ -/* Make sure, pipeline is filled with instructions coming from ARAM */ -__asm (" nop \n\t" - " nop \n\t" -#if defined(__KERNEL__) && !defined(STANDALONE) - " MRC p15,#0x0,r0,c1,c0,#0 \n\t" - " BIC r0,r0,#0xd \n\t" - " MCR p15,#0x0,r0,c1,c0,#0 \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" -#endif - " nop \n\t" - " nop \n\t" -/* Bypass the ARM clock and switch to XTAL clock */ - " MOV r2,#0x80000000 \n\t" - " LDR r3,[r2,#8] \n\t" - " ORR r3,r3,#0x20000 \n\t" - " STR r3,[r2,#8] \n\t" - - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" - " nop \n\t" -/* Issue reset */ - " MOV r3,#0x2 \n\t" - " STR r3,[r2,#0x80] \n\t" -/* End here */ - " MOV pc,pc \n\t"); -/* 0xe1a0f00f == asm ("mov r15, r15"); */ -} |