[PATCH 1/3] Revert "armv8: enable HAFDBS for other ELx when FEAT_HAFDBS is present"

[Chris Packham]

This reverts commit c1da6fdb5c239b432440721772d993e63cfdeb20. This is
part of a series trying to make use of the arm64 hardware features for
tracking dirty pages. Unfortunately this series causes problems for the
AC5/AC5X SoCs. Having exhausted other options the consensus seems to be
reverting this series is the best course of action.

Signed-off-by: Chris Packham <judge.packham at gmail.com>
---

 arch/arm/cpu/armv8/cache_v8.c    |  6 +-----
 arch/arm/include/asm/armv8/mmu.h | 10 ++--------
 2 files changed, 3 insertions(+), 13 deletions(-)

diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c
index cb1131a0480e..4c6a1b1d6c5e 100644
--- a/arch/arm/cpu/armv8/cache_v8.c
+++ b/arch/arm/cpu/armv8/cache_v8.c
@@ -94,15 +94,11 @@ u64 get_tcr(u64 *pips, u64 *pva_bits)
 	if (el == 1) {
 		tcr = TCR_EL1_RSVD | (ips << 32) | TCR_EPD1_DISABLE;
 		if (gd->arch.has_hafdbs)
-			tcr |= TCR_EL1_HA | TCR_EL1_HD;
+			tcr |= TCR_HA | TCR_HD;
 	} else if (el == 2) {
 		tcr = TCR_EL2_RSVD | (ips << 16);
-		if (gd->arch.has_hafdbs)
-			tcr |= TCR_EL2_HA | TCR_EL2_HD;
 	} else {
 		tcr = TCR_EL3_RSVD | (ips << 16);
-		if (gd->arch.has_hafdbs)
-			tcr |= TCR_EL3_HA | TCR_EL3_HD;
 	}
 
 	/* PTWs cacheable, inner/outer WBWA and inner shareable */
diff --git a/arch/arm/include/asm/armv8/mmu.h b/arch/arm/include/asm/armv8/mmu.h
index 19a9e112a434..98a27db3166b 100644
--- a/arch/arm/include/asm/armv8/mmu.h
+++ b/arch/arm/include/asm/armv8/mmu.h
@@ -102,14 +102,8 @@
 #define TCR_TG0_16K		(2 << 14)
 #define TCR_EPD1_DISABLE	(1 << 23)
 
-#define TCR_EL1_HA		BIT(39)
-#define TCR_EL1_HD		BIT(40)
-
-#define TCR_EL2_HA		BIT(21)
-#define TCR_EL2_HD		BIT(22)
-
-#define TCR_EL3_HA		BIT(21)
-#define TCR_EL3_HD		BIT(22)
+#define TCR_HA			BIT(39)
+#define TCR_HD			BIT(40)
 
 #define TCR_EL1_RSVD		(1U << 31)
 #define TCR_EL2_RSVD		(1U << 31 | 1 << 23)
-- 
2.42.0