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authorMichael Ellerman <mpe@ellerman.id.au>2016-03-14 12:05:14 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-03-14 12:05:14 +0300
commita1b5344620a3e6291afaf7542714ba9c391ef1c7 (patch)
treeb79b51bc4019ea50efbbac4a7f7717b6e6d749c0 /arch/powerpc/include/asm/reg_8xx.h
parentd8c0282f4da6d5335fee56141ca92284026f4818 (diff)
parentfba4e9f9898ab181703723b9890ba29345edfe08 (diff)
downloadlinux-a1b5344620a3e6291afaf7542714ba9c391ef1c7.tar.xz
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next
Freescale updates from Scott: "Highlights include 8xx optimizations, 32-bit checksum optimizations, 86xx consolidation, e5500/e6500 cpu hotplug, more fman and other dt bits, and minor fixes/cleanup."
Diffstat (limited to 'arch/powerpc/include/asm/reg_8xx.h')
-rw-r--r--arch/powerpc/include/asm/reg_8xx.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/reg_8xx.h b/arch/powerpc/include/asm/reg_8xx.h
index e8ea346b21d3..d41412c7748b 100644
--- a/arch/powerpc/include/asm/reg_8xx.h
+++ b/arch/powerpc/include/asm/reg_8xx.h
@@ -4,6 +4,8 @@
#ifndef _ASM_POWERPC_REG_8xx_H
#define _ASM_POWERPC_REG_8xx_H
+#include <asm/mmu-8xx.h>
+
/* Cache control on the MPC8xx is provided through some additional
* special purpose registers.
*/
@@ -14,6 +16,15 @@
#define SPRN_DC_ADR 569 /* Address needed for some commands */
#define SPRN_DC_DAT 570 /* Read-only data register */
+/* Misc Debug */
+#define SPRN_DPDR 630
+#define SPRN_MI_CAM 816
+#define SPRN_MI_RAM0 817
+#define SPRN_MI_RAM1 818
+#define SPRN_MD_CAM 824
+#define SPRN_MD_RAM0 825
+#define SPRN_MD_RAM1 826
+
/* Commands. Only the first few are available to the instruction cache.
*/
#define IDC_ENABLE 0x02000000 /* Cache enable */
@@ -39,4 +50,86 @@
#define DC_DFWT 0x40000000 /* Data cache is forced write through */
#define DC_LES 0x20000000 /* Caches are little endian mode */
+#ifdef CONFIG_8xx_CPU6
+#define do_mtspr_cpu6(rn, rn_addr, v) \
+ do { \
+ int _reg_cpu6 = rn_addr, _tmp_cpu6[1]; \
+ asm volatile("stw %0, %1;" \
+ "lwz %0, %1;" \
+ "mtspr " __stringify(rn) ",%2" : \
+ : "r" (_reg_cpu6), "m"(_tmp_cpu6), \
+ "r" ((unsigned long)(v)) \
+ : "memory"); \
+ } while (0)
+
+#define do_mtspr(rn, v) asm volatile("mtspr " __stringify(rn) ",%0" : \
+ : "r" ((unsigned long)(v)) \
+ : "memory")
+#define mtspr(rn, v) \
+ do { \
+ if (rn == SPRN_IMMR) \
+ do_mtspr_cpu6(rn, 0x3d30, v); \
+ else if (rn == SPRN_IC_CST) \
+ do_mtspr_cpu6(rn, 0x2110, v); \
+ else if (rn == SPRN_IC_ADR) \
+ do_mtspr_cpu6(rn, 0x2310, v); \
+ else if (rn == SPRN_IC_DAT) \
+ do_mtspr_cpu6(rn, 0x2510, v); \
+ else if (rn == SPRN_DC_CST) \
+ do_mtspr_cpu6(rn, 0x3110, v); \
+ else if (rn == SPRN_DC_ADR) \
+ do_mtspr_cpu6(rn, 0x3310, v); \
+ else if (rn == SPRN_DC_DAT) \
+ do_mtspr_cpu6(rn, 0x3510, v); \
+ else if (rn == SPRN_MI_CTR) \
+ do_mtspr_cpu6(rn, 0x2180, v); \
+ else if (rn == SPRN_MI_AP) \
+ do_mtspr_cpu6(rn, 0x2580, v); \
+ else if (rn == SPRN_MI_EPN) \
+ do_mtspr_cpu6(rn, 0x2780, v); \
+ else if (rn == SPRN_MI_TWC) \
+ do_mtspr_cpu6(rn, 0x2b80, v); \
+ else if (rn == SPRN_MI_RPN) \
+ do_mtspr_cpu6(rn, 0x2d80, v); \
+ else if (rn == SPRN_MI_CAM) \
+ do_mtspr_cpu6(rn, 0x2190, v); \
+ else if (rn == SPRN_MI_RAM0) \
+ do_mtspr_cpu6(rn, 0x2390, v); \
+ else if (rn == SPRN_MI_RAM1) \
+ do_mtspr_cpu6(rn, 0x2590, v); \
+ else if (rn == SPRN_MD_CTR) \
+ do_mtspr_cpu6(rn, 0x3180, v); \
+ else if (rn == SPRN_M_CASID) \
+ do_mtspr_cpu6(rn, 0x3380, v); \
+ else if (rn == SPRN_MD_AP) \
+ do_mtspr_cpu6(rn, 0x3580, v); \
+ else if (rn == SPRN_MD_EPN) \
+ do_mtspr_cpu6(rn, 0x3780, v); \
+ else if (rn == SPRN_M_TWB) \
+ do_mtspr_cpu6(rn, 0x3980, v); \
+ else if (rn == SPRN_MD_TWC) \
+ do_mtspr_cpu6(rn, 0x3b80, v); \
+ else if (rn == SPRN_MD_RPN) \
+ do_mtspr_cpu6(rn, 0x3d80, v); \
+ else if (rn == SPRN_M_TW) \
+ do_mtspr_cpu6(rn, 0x3f80, v); \
+ else if (rn == SPRN_MD_CAM) \
+ do_mtspr_cpu6(rn, 0x3190, v); \
+ else if (rn == SPRN_MD_RAM0) \
+ do_mtspr_cpu6(rn, 0x3390, v); \
+ else if (rn == SPRN_MD_RAM1) \
+ do_mtspr_cpu6(rn, 0x3590, v); \
+ else if (rn == SPRN_DEC) \
+ do_mtspr_cpu6(rn, 0x2c00, v); \
+ else if (rn == SPRN_TBWL) \
+ do_mtspr_cpu6(rn, 0x3880, v); \
+ else if (rn == SPRN_TBWU) \
+ do_mtspr_cpu6(rn, 0x3a80, v); \
+ else if (rn == SPRN_DPDR) \
+ do_mtspr_cpu6(rn, 0x2d30, v); \
+ else \
+ do_mtspr(rn, v); \
+ } while (0)
+#endif
+
#endif /* _ASM_POWERPC_REG_8xx_H */