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-rw-r--r--arch/arm/mach-pnx4008/sleep.S195
1 files changed, 0 insertions, 195 deletions
diff --git a/arch/arm/mach-pnx4008/sleep.S b/arch/arm/mach-pnx4008/sleep.S
deleted file mode 100644
index f4eed49..0000000
--- a/arch/arm/mach-pnx4008/sleep.S
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * linux/arch/arm/mach-pnx4008/sleep.S
- *
- * PNX4008 support for STOP mode and SDRAM self-refresh
- *
- * Authors: Dmitry Chigirev, Vitaly Wool <source@mvista.com>
- *
- * 2005 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-#include <mach/hardware.h>
-
-#define PWRMAN_VA_BASE IO_ADDRESS(PNX4008_PWRMAN_BASE)
-#define PWR_CTRL_REG_OFFS 0x44
-
-#define SDRAM_CFG_VA_BASE IO_ADDRESS(PNX4008_SDRAM_CFG_BASE)
-#define MPMC_STATUS_REG_OFFS 0x4
-
- .text
-
-ENTRY(pnx4008_cpu_suspend)
- @this function should be entered in Direct run mode.
-
- @ save registers on stack
- stmfd sp!, {r0 - r6, lr}
-
- @ setup Power Manager base address in r4
- @ and put it's value in r5
- mov r4, #(PWRMAN_VA_BASE & 0xff000000)
- orr r4, r4, #(PWRMAN_VA_BASE & 0x00ff0000)
- orr r4, r4, #(PWRMAN_VA_BASE & 0x0000ff00)
- orr r4, r4, #(PWRMAN_VA_BASE & 0x000000ff)
- ldr r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ setup SDRAM controller base address in r2
- @ and put it's value in r3
- mov r2, #(SDRAM_CFG_VA_BASE & 0xff000000)
- orr r2, r2, #(SDRAM_CFG_VA_BASE & 0x00ff0000)
- orr r2, r2, #(SDRAM_CFG_VA_BASE & 0x0000ff00)
- orr r2, r2, #(SDRAM_CFG_VA_BASE & 0x000000ff)
- ldr r3, [r2, #MPMC_STATUS_REG_OFFS] @extra read - HW bug workaround
-
- @ clear SDRAM self-refresh bit latch
- and r5, r5, #(~(1 << 8))
- @ clear SDRAM self-refresh bit
- and r5, r5, #(~(1 << 9))
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ do save current bit settings in r1
- mov r1, r5
-
- @ set SDRAM self-refresh bit
- orr r5, r5, #(1 << 9)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ set SDRAM self-refresh bit latch
- orr r5, r5, #(1 << 8)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ clear SDRAM self-refresh bit latch
- and r5, r5, #(~(1 << 8))
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ clear SDRAM self-refresh bit
- and r5, r5, #(~(1 << 9))
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ wait for SDRAM to get into self-refresh mode
-2: ldr r3, [r2, #MPMC_STATUS_REG_OFFS]
- tst r3, #(1 << 2)
- beq 2b
-
- @ to prepare SDRAM to get out of self-refresh mode after wakeup
- orr r5, r5, #(1 << 7)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ do enter stop mode
- orr r5, r5, #(1 << 0)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
-
- @ sleeping now...
-
- @ coming out of STOP mode into Direct Run mode
- @ clear STOP mode and SDRAM self-refresh bits
- str r1, [r4, #PWR_CTRL_REG_OFFS]
-
- @ wait for SDRAM to get out self-refresh mode
-3: ldr r3, [r2, #MPMC_STATUS_REG_OFFS]
- tst r3, #5
- bne 3b
-
- @ restore regs and return
- ldmfd sp!, {r0 - r6, pc}
-
-ENTRY(pnx4008_cpu_suspend_sz)
- .word . - pnx4008_cpu_suspend
-
-ENTRY(pnx4008_cpu_standby)
- @ save registers on stack
- stmfd sp!, {r0 - r6, lr}
-
- @ setup Power Manager base address in r4
- @ and put it's value in r5
- mov r4, #(PWRMAN_VA_BASE & 0xff000000)
- orr r4, r4, #(PWRMAN_VA_BASE & 0x00ff0000)
- orr r4, r4, #(PWRMAN_VA_BASE & 0x0000ff00)
- orr r4, r4, #(PWRMAN_VA_BASE & 0x000000ff)
- ldr r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ setup SDRAM controller base address in r2
- @ and put it's value in r3
- mov r2, #(SDRAM_CFG_VA_BASE & 0xff000000)
- orr r2, r2, #(SDRAM_CFG_VA_BASE & 0x00ff0000)
- orr r2, r2, #(SDRAM_CFG_VA_BASE & 0x0000ff00)
- orr r2, r2, #(SDRAM_CFG_VA_BASE & 0x000000ff)
- ldr r3, [r2, #MPMC_STATUS_REG_OFFS] @extra read - HW bug workaround
-
- @ clear SDRAM self-refresh bit latch
- and r5, r5, #(~(1 << 8))
- @ clear SDRAM self-refresh bit
- and r5, r5, #(~(1 << 9))
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ do save current bit settings in r1
- mov r1, r5
-
- @ set SDRAM self-refresh bit
- orr r5, r5, #(1 << 9)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ set SDRAM self-refresh bit latch
- orr r5, r5, #(1 << 8)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ clear SDRAM self-refresh bit latch
- and r5, r5, #(~(1 << 8))
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ clear SDRAM self-refresh bit
- and r5, r5, #(~(1 << 9))
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ wait for SDRAM to get into self-refresh mode
-2: ldr r3, [r2, #MPMC_STATUS_REG_OFFS]
- tst r3, #(1 << 2)
- beq 2b
-
- @ set 'get out of self-refresh mode after wakeup' bit
- orr r5, r5, #(1 << 7)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- mcr p15, 0, r0, c7, c0, 4 @ kinda sleeping now...
-
- @ set SDRAM self-refresh bit latch
- orr r5, r5, #(1 << 8)
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ clear SDRAM self-refresh bit latch
- and r5, r5, #(~(1 << 8))
- str r5, [r4, #PWR_CTRL_REG_OFFS]
-
- @ wait for SDRAM to get out self-refresh mode
-3: ldr r3, [r2, #MPMC_STATUS_REG_OFFS]
- tst r3, #5
- bne 3b
-
- @ restore regs and return
- ldmfd sp!, {r0 - r6, pc}
-
-ENTRY(pnx4008_cpu_standby_sz)
- .word . - pnx4008_cpu_standby
-
-ENTRY(pnx4008_cache_clean_invalidate)
- stmfd sp!, {r0 - r6, lr}
-#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
- mcr p15, 0, ip, c7, c6, 0 @ invalidate D cache
-#else
-1: mrc p15, 0, r15, c7, c14, 3 @ test,clean,invalidate
- bne 1b
-#endif
- ldmfd sp!, {r0 - r6, pc}