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e58cd453d5
Add kernel support for SAMA7G5 by back-porting mainline kernel patches. Among SAMA7G5 features could be remembered: - ARM Cortex-A7 - double data rate multi-port dynamic RAM controller supporting DDR2, DDR3, DDR3L, LPDDR2, LPDDR3 up to 533MHz - peripherals for audio, video processing - 1 gigabit + 1 megabit Ethernet controllers - 6 CAN controllers - trust zone support - DVFS for CPU - criptography IPs Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
66 lines
1.6 KiB
Diff
66 lines
1.6 KiB
Diff
From 8a7a4cf3860910e460e2c3ca467b1dabf7ce9827 Mon Sep 17 00:00:00 2001
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From: Claudiu Beznea <claudiu.beznea@microchip.com>
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Date: Thu, 15 Apr 2021 13:49:52 +0300
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Subject: [PATCH 202/247] ARM: at91: pm: use r7 instead of tmp1
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Use r7 instead of tmp1 in macros. This prepares the filed for
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next commits.
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Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
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Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
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Link: https://lore.kernel.org/r/20210415105010.569620-7-claudiu.beznea@microchip.com
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---
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arch/arm/mach-at91/pm_suspend.S | 18 ++++++++++++------
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1 file changed, 12 insertions(+), 6 deletions(-)
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diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S
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index b683c2caa40b..3d20c9880fee 100644
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--- a/arch/arm/mach-at91/pm_suspend.S
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+++ b/arch/arm/mach-at91/pm_suspend.S
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@@ -31,30 +31,36 @@ tmp3 .req r6
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/*
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* Wait until master oscillator has stabilized.
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+ *
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+ * Side effects: overwrites r7
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*/
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.macro wait_moscrdy
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-1: ldr tmp1, [pmc, #AT91_PMC_SR]
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- tst tmp1, #AT91_PMC_MOSCS
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+1: ldr r7, [pmc, #AT91_PMC_SR]
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+ tst r7, #AT91_PMC_MOSCS
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beq 1b
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.endm
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/*
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* Wait for main oscillator selection is done
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+ *
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+ * Side effects: overwrites r7
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*/
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.macro wait_moscsels
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-1: ldr tmp1, [pmc, #AT91_PMC_SR]
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- tst tmp1, #AT91_PMC_MOSCSELS
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+1: ldr r7, [pmc, #AT91_PMC_SR]
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+ tst r7, #AT91_PMC_MOSCSELS
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beq 1b
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.endm
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/*
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* Put the processor to enter the idle state
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+ *
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+ * Side effects: overwrites r7
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*/
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.macro at91_cpu_idle
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#if defined(CONFIG_CPU_V7)
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- mov tmp1, #AT91_PMC_PCK
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- str tmp1, [pmc, #AT91_PMC_SCDR]
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+ mov r7, #AT91_PMC_PCK
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+ str r7, [pmc, #AT91_PMC_SCDR]
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dsb
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--
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2.32.0
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