[U-Boot] [PATCH] ppc4xx: Flush dcache after DDR2 autocalibration with caches on

[U-Boot] [PATCH] ppc4xx: Flush dcache after DDR2 autocalibration with caches on

[Stefan Roese]

Flush the dcache before removing the TLB with caches enabled.
Otherwise this might lead to problems later on, e.g. while booting
Linux (as seen on ICON-440SPe).

Signed-off-by: Stefan Roese <sr@denx.de>
---
 arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
index 95df1d9..4a2f337 100644
--- a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
@@ -657,6 +657,13 @@ phys_size_t initdram(int board_type)
 #endif
 
 	/*
+	 * Flush the dcache before removing the TLB with caches
+	 * enabled. Otherwise this might lead to problems later on,
+	 * e.g. while booting Linux (as seen on ICON-440SPe).
+	 */
+	flush_dcache();
+
+	/*
 	 * Now after initialization (auto-calibration and ECC generation)
 	 * remove the TLB entries with caches enabled and program again with
 	 * desired cache functionality
-- 
1.7.6.1

[U-Boot] [PATCH] ppc4xx: Flush dcache after DDR2 autocalibration with caches on

[Stefan Roese]

On Friday 16 September 2011 12:54:58 Stefan Roese wrote:
> Flush the dcache before removing the TLB with caches enabled.
> Otherwise this might lead to problems later on, e.g. while booting
> Linux (as seen on ICON-440SPe).

Applied to u-boot-ppc4xx/master.

Best regards,
Stefan

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