From: Matthew Leach <matthew@mattleach.net>
To: Krzysztof Kozlowski <k.kozlowski@samsung.com>,
Ben Dooks <ben.dooks@codethink.co.uk>
Cc: linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [RFC PATCH 07/15] ARM: exynos: fixup debug macros for big-endian
Date: Wed, 8 Jun 2016 19:31:02 +0100 [thread overview]
Message-ID: <20160608183110.13851-8-matthew@mattleach.net> (raw)
In-Reply-To: <20160608183110.13851-1-matthew@mattleach.net>
From: Ben Dooks <ben.dooks@codethink.co.uk>
The exynos low-level debug macros need to be fixed if the system is being
built big endian. Add the necessary endian swaps for accessing the registers
to get output working again
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
arch/arm/include/debug/samsung.S | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/include/debug/samsung.S b/arch/arm/include/debug/samsung.S
index 8d8d922..f4eeed2 100644
--- a/arch/arm/include/debug/samsung.S
+++ b/arch/arm/include/debug/samsung.S
@@ -15,11 +15,13 @@
.macro fifo_level_s5pv210 rd, rx
ldr \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
and \rd, \rd, #S5PV210_UFSTAT_TXMASK
.endm
.macro fifo_full_s5pv210 rd, rx
ldr \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
tst \rd, #S5PV210_UFSTAT_TXFULL
.endm
@@ -28,6 +30,7 @@
.macro fifo_level_s3c2440 rd, rx
ldr \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
and \rd, \rd, #S3C2440_UFSTAT_TXMASK
.endm
@@ -37,6 +40,7 @@
.macro fifo_full_s3c2440 rd, rx
ldr \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
tst \rd, #S3C2440_UFSTAT_TXFULL
.endm
@@ -50,6 +54,7 @@
.macro busyuart, rd, rx
ldr \rd, [\rx, # S3C2410_UFCON]
+ARM_BE8(rev \rd, \rd)
tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
beq 1001f @
@ FIFO enabled...
@@ -61,6 +66,7 @@
1001:
@ busy waiting for non fifo
ldr \rd, [\rx, # S3C2410_UTRSTAT]
+ARM_BE8(rev \rd, \rd)
tst \rd, #S3C2410_UTRSTAT_TXFE
beq 1001b
@@ -69,6 +75,7 @@
.macro waituart,rd,rx
ldr \rd, [\rx, # S3C2410_UFCON]
+ARM_BE8(rev \rd, \rd)
tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
beq 1001f @
@ FIFO enabled...
@@ -80,6 +87,7 @@
1001:
@ idle waiting for non fifo
ldr \rd, [\rx, # S3C2410_UTRSTAT]
+ARM_BE8(rev \rd, \rd)
tst \rd, #S3C2410_UTRSTAT_TXFE
beq 1001b
--
2.8.3
next prev parent reply other threads:[~2016-06-08 18:32 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-08 18:30 [RFC PATCH 00/15] Exynos big-endian fixes Matthew Leach
2016-06-08 18:30 ` [RFC PATCH 01/15] clock: exynos: fixup endian in pll clk Matthew Leach
2016-06-10 9:51 ` Sylwester Nawrocki
2016-06-08 18:30 ` [RFC PATCH 02/15] clocksource: samsung_pwm_timer: fix endian accessors Matthew Leach
2016-06-10 11:43 ` Krzysztof Kozlowski
2016-06-16 13:23 ` Daniel Lezcano
2016-06-08 18:30 ` [RFC PATCH 03/15] clk: samsung: exynos4: fixup reg access on be Matthew Leach
2016-06-10 9:51 ` Sylwester Nawrocki
2016-06-08 18:30 ` [RFC PATCH 04/15] irqchip: exynos_combiner: " Matthew Leach
2016-06-10 11:44 ` Krzysztof Kozlowski
2016-06-08 18:31 ` [RFC PATCH 05/15] tty: serial: samsung: fixup accessors for endian Matthew Leach
2016-06-09 8:12 ` Ben Dooks
2016-06-10 10:13 ` Ben Dooks
2016-06-10 11:47 ` Krzysztof Kozlowski
2016-06-08 18:31 ` [RFC PATCH 06/15] tty: serial: samsung: add byte-order aware bit functions Matthew Leach
2016-06-10 12:17 ` Krzysztof Kozlowski
2016-06-08 18:31 ` Matthew Leach [this message]
2016-06-10 11:12 ` [RFC PATCH 07/15] ARM: exynos: fixup debug macros for big-endian Ben Dooks
2016-06-10 11:16 ` Krzysztof Kozlowski
2016-06-10 12:44 ` Ben Dooks
2016-06-10 13:02 ` Ben Dooks
2016-06-10 13:04 ` Krzysztof Kozlowski
2016-06-08 18:31 ` [RFC PATCH 08/15] ARM: samsung: fixup endian issues in cpu detection Matthew Leach
2016-06-08 18:31 ` [RFC PATCH 09/15] ARM: EXYNOS: fixups for big-endian operation Matthew Leach
2016-06-08 18:31 ` [RFC PATCH 10/15] ARM: EXYNOS: fixup endian in pm/pmu Matthew Leach
2016-06-08 18:31 ` [RFC PATCH 11/15] ARM: EXYNOS: Enable ARCH_SUPPORTS_BIG_ENDIAN explicitly Matthew Leach
2016-06-08 18:31 ` [RFC PATCH 12/15] irqchip/s3c24xx: fixup IO accessors for big endian Matthew Leach
2016-06-17 8:56 ` Krzysztof Kozlowski
2016-06-08 18:31 ` [RFC PATCH 13/15] memory: samsung: endian fixes for IO Matthew Leach
2016-06-17 8:59 ` Krzysztof Kozlowski
2016-06-08 18:31 ` [RFC PATCH 14/15] hwrng: exynos - fixup IO accesors Matthew Leach
2016-06-08 18:31 ` [RFC PATCH 15/15] iommu/exynos: update to use iommu big-endian Matthew Leach
2016-06-09 6:51 ` Marek Szyprowski
2016-06-09 8:14 ` Ben Dooks
2016-06-21 9:59 ` Joerg Roedel
2016-06-09 8:09 ` [RFC PATCH 00/15] Exynos big-endian fixes Ben Dooks
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