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ARM: 8603/1: V7M: Add addresses for mem-mapped V7M cache operations

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V7M implements cache operations similarly to V7A/R, however all operations
are performed via memory-mapped IO instead of co-processor operations.

This patch adds register definitions relevant to the V7M ARM architecture's
cache architecture.

Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: Andras Szemzo <sza@esh.hu>
Tested-by: Joachim Eastwood <manabian@gmail.com>
Tested-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Jonathan Austin 2016-08-30 17:25:59 +01:00 committed by Russell King
parent 26150aa96d
commit 296909ee6d
1 changed files with 22 additions and 0 deletions
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22
arch/arm/include/asm/v7m.h
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@ -24,6 +24,9 @@
#define V7M_SCB_CCR 0x14
#define V7M_SCB_CCR_STKALIGN (1 << 9)
#define V7M_SCB_CCR_DC (1 << 16)
#define V7M_SCB_CCR_IC (1 << 17)
#define V7M_SCB_CCR_BP (1 << 18)
#define V7M_SCB_SHPR2 0x1c
#define V7M_SCB_SHPR3 0x20
@ -47,6 +50,25 @@
#define EXC_RET_STACK_MASK 0x00000004
#define EXC_RET_THREADMODE_PROCESSSTACK 0xfffffffd
/* Cache related definitions */
#define V7M_SCB_CLIDR 0x78 /* Cache Level ID register */
#define V7M_SCB_CTR 0x7c /* Cache Type register */
#define V7M_SCB_CCSIDR 0x80 /* Cache size ID register */
#define V7M_SCB_CSSELR 0x84 /* Cache size selection register */
/* Cache opeartions */
#define V7M_SCB_ICIALLU 0x250 /* I-cache invalidate all to PoU */
#define V7M_SCB_ICIMVAU 0x258 /* I-cache invalidate by MVA to PoU */
#define V7M_SCB_DCIMVAC 0x25c /* D-cache invalidate by MVA to PoC */
#define V7M_SCB_DCISW 0x260 /* D-cache invalidate by set-way */
#define V7M_SCB_DCCMVAU 0x264 /* D-cache clean by MVA to PoU */
#define V7M_SCB_DCCMVAC 0x268 /* D-cache clean by MVA to PoC */
#define V7M_SCB_DCCSW 0x26c /* D-cache clean by set-way */
#define V7M_SCB_DCCIMVAC 0x270 /* D-cache clean and invalidate by MVA to PoC */
#define V7M_SCB_DCCISW 0x274 /* D-cache clean and invalidate by set-way */
#define V7M_SCB_BPIALL 0x278 /* D-cache clean and invalidate by set-way */
#ifndef __ASSEMBLY__
enum reboot_mode;