From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 28/34] ARM mmu: pickup already enabled mmu
Date: Fri, 1 Feb 2013 08:59:41 +0100 [thread overview]
Message-ID: <1359705587-9762-29-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1359705587-9762-1-git-send-email-s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/cpu/mmu.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c
index 8f9a43e..73dd0d3 100644
--- a/arch/arm/cpu/mmu.c
+++ b/arch/arm/cpu/mmu.c
@@ -276,7 +276,14 @@ static int mmu_init(void)
pte_flags_uncached = PTE_FLAGS_UNCACHED_V4;
}
- ttb = memalign(0x10000, 0x4000);
+ if (get_cr() & CR_M) {
+ asm volatile ("mrc p15,0,%0,c2,c0,0" : "=r"(ttb));
+
+ if (!request_sdram_region("ttb", (unsigned long)ttb, SZ_16K))
+ pr_err("Error: Can't request SDRAM region for ttb\n");
+ } else {
+ ttb = memalign(0x10000, 0x4000);
+ }
pr_debug("ttb: 0x%p\n", ttb);
--
1.7.10.4
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next prev parent reply other threads:[~2013-02-01 8:00 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-01 7:59 [PATCH v2] Add new ARM entry point for barebox Sascha Hauer
2013-02-01 7:59 ` [PATCH 01/34] ARM: Add new " Sascha Hauer
2013-02-01 7:59 ` [PATCH 02/34] ARM: add __noreturn to board_init_lowlevel_return Sascha Hauer
2013-02-01 7:59 ` [PATCH 03/34] ARM i.MX: Use SRAM stack in lowlevel code Sascha Hauer
2013-02-01 7:59 ` [PATCH 04/34] ARM i.MX: Add i.MX specific entry point for barebox Sascha Hauer
2013-02-01 7:59 ` [PATCH 05/34] ARM i.MX: prepare external nand boot for SoC specific entry Sascha Hauer
2013-02-01 7:59 ` [PATCH 06/34] ARM i.MX boards: switch to barebox_arm_entry Sascha Hauer
2013-02-01 7:59 ` [PATCH 07/34] ARM MXS " Sascha Hauer
2013-02-01 7:59 ` [PATCH 08/34] ARM OMAP " Sascha Hauer
2013-02-01 7:59 ` [PATCH 09/34] ARM Samsung " Sascha Hauer
2013-02-01 7:59 ` [PATCH 10/34] ARM PXA " Sascha Hauer
2013-02-01 7:59 ` [PATCH 11/34] ARM ep93xx " Sascha Hauer
2013-02-01 7:59 ` [PATCH 12/34] ARM tegra " Sascha Hauer
2013-02-01 7:59 ` [PATCH 13/34] ARM nomadik " Sascha Hauer
2013-02-01 7:59 ` [PATCH 14/34] ARM versatile " Sascha Hauer
2013-02-01 7:59 ` [PATCH 15/34] ARM netx " Sascha Hauer
2013-02-01 7:59 ` [PATCH 16/34] ARM clep7212: " Sascha Hauer
2013-02-01 7:59 ` [PATCH 17/34] ARM raspberrypi: " Sascha Hauer
2013-02-01 7:59 ` [PATCH 18/34] ARM AT91: switch to barebox_arm_entry part1 Sascha Hauer
2013-02-01 8:11 ` Jean-Christophe PLAGNIOL-VILLARD
2013-02-03 10:13 ` Jean-Christophe PLAGNIOL-VILLARD
2013-02-01 7:59 ` [PATCH 19/34] ARM AT91: switch at91rm9200 board to barebox_arm_entry Sascha Hauer
2013-02-01 7:59 ` [PATCH 20/34] ARM AT91: switch sama5d3 " Sascha Hauer
2013-02-01 7:59 ` [PATCH 21/34] ARM AT91: switch remaining boards " Sascha Hauer
2013-02-01 8:12 ` Jean-Christophe PLAGNIOL-VILLARD
2013-02-02 21:23 ` Jean-Christophe PLAGNIOL-VILLARD
2013-02-01 7:59 ` [PATCH 22/34] ARM: remove now unused MACH_[HAS|DO]_LOWLEVEL_INIT Sascha Hauer
2013-02-01 7:59 ` [PATCH 23/34] ARM start-pbl: make board_init_lowlevel_return static Sascha Hauer
2013-02-01 7:59 ` [PATCH 24/34] ARM start-pbl: call uncompressed binary with arguments Sascha Hauer
2013-02-01 7:59 ` [PATCH 25/34] ARM start: pickup parameters from pbl Sascha Hauer
2013-02-01 7:59 ` [PATCH 26/34] ARM: Setup stack at end of SDRAM Sascha Hauer
2013-02-01 7:59 ` [PATCH 27/34] ARM pbl: Use dynamic parameters for early malloc space Sascha Hauer
2013-02-01 7:59 ` Sascha Hauer [this message]
2013-02-01 7:59 ` [PATCH 29/34] ARM: Factor out early mmu code Sascha Hauer
2013-02-01 7:59 ` [PATCH 30/34] ARM: Enable mmu early Sascha Hauer
2013-02-01 7:59 ` [PATCH 31/34] ARM: Automatically determine malloc size Sascha Hauer
2013-02-01 7:59 ` [PATCH 32/34] generic memory layout: fix deps for [MALLOC|STACK]_BASE Sascha Hauer
2013-02-01 7:59 ` [PATCH 33/34] ARM: disable HAVE_CONFIGURABLE_MEMORY_LAYOUT Sascha Hauer
2013-02-01 7:59 ` [PATCH 34/34] ARM pbl: inline decompress function Sascha Hauer
2013-02-01 8:15 ` [PATCH v2] Add new ARM entry point for barebox Jean-Christophe PLAGNIOL-VILLARD
-- strict thread matches above, loose matches on Subject: below --
2013-01-27 10:46 [PATCH] " Sascha Hauer
2013-01-27 10:46 ` [PATCH 28/34] ARM mmu: pickup already enabled mmu Sascha Hauer
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