| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.17 03/66] MIPS: ath79: fix register address in ath79_ddr_wb_flush() | Date | Fri, 27 Jul 2018 11:44:56 +0200 |
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4.17-stable review patch. If anyone has any objections, please let me know.
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From: Felix Fietkau <nbd@nbd.name>
commit bc88ad2efd11f29e00a4fd60fcd1887abfe76833 upstream.
ath79_ddr_wb_flush_base has the type void __iomem *, so register offsets need to be a multiple of 4 in order to access the intended register.
Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Paul Burton <paul.burton@mips.com> Fixes: 24b0e3e84fbf ("MIPS: ath79: Improve the DDR controller interface") Patchwork: https://patchwork.linux-mips.org/patch/19912/ Cc: Alban Bedel <albeu@free.fr> Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # 4.2+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/mips/ath79/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/ath79/common.c +++ b/arch/mips/ath79/common.c @@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(ath79_ddr_ctrl_init); void ath79_ddr_wb_flush(u32 reg) { - void __iomem *flush_reg = ath79_ddr_wb_flush_base + reg; + void __iomem *flush_reg = ath79_ddr_wb_flush_base + (reg * 4); /* Flush the DDR write buffer. */ __raw_writel(0x1, flush_reg);
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