Bartlomiej Zolnierkiewicz wrote:
>
> From: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
> Subject: [PATCH v2] ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of
> Exynos4210 SOC
>
> Commit 8214513 ("ARM: EXYNOS: fix address for EXYNOS4 MDMA1")
> changed EXYNOS specific setup of PL330 DMA engine to use 'non-secure'
> mdma1 address instead of 'secure' one (from 0x12840000 to 0x12850000)
> to fix issue with some Exynos4212 SOCs. Unfortunately it brakes
> PL330 setup for revision 0 of Exynos4210 SOC (mdma1 device cannot
> be found at 'non-secure' address):
>
> [ 0.566245] dma-pl330 dma-pl330.2: PERIPH_ID 0x0, PCELL_ID 0x0 !
> [ 0.566278] dma-pl330: probe of dma-pl330.2 failed with error -22
>
> Fix it by using 'secure' mdma1 address on Exynos4210 revision 0 SOC.
>
> Reviewed-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
> Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
> arch/arm/mach-exynos/dma.c | 3 +++
> arch/arm/mach-exynos/include/mach/map.h | 1 +
> 2 files changed, 4 insertions(+)
>
> Index: b/arch/arm/mach-exynos/dma.c
> ===================================================================
> --- a/arch/arm/mach-exynos/dma.c 2012-11-07 18:20:36.561743865 +0100
> +++ b/arch/arm/mach-exynos/dma.c 2012-11-08 10:48:23.445067606 +0100
> @@ -275,6 +275,9 @@ static int __init exynos_dma_init(void)
> exynos_pdma1_pdata.nr_valid_peri =
> ARRAY_SIZE(exynos4210_pdma1_peri);
> exynos_pdma1_pdata.peri_id = exynos4210_pdma1_peri;
> +
> + if (samsung_rev() == EXYNOS4210_REV_0)
> + exynos_mdma1_device.res.start = EXYNOS4_PA_S_MDMA1;
> } else if (soc_is_exynos4212() || soc_is_exynos4412()) {
> exynos_pdma0_pdata.nr_valid_peri =
> ARRAY_SIZE(exynos4212_pdma0_peri);
> Index: b/arch/arm/mach-exynos/include/mach/map.h
> ===================================================================
> --- a/arch/arm/mach-exynos/include/mach/map.h 2012-11-07
> 18:20:44.801743862 +0100
> +++ b/arch/arm/mach-exynos/include/mach/map.h 2012-11-08
> 10:48:40.597067605 +0100
> @@ -92,6 +92,7 @@
>
> #define EXYNOS4_PA_MDMA0 0x10810000
> #define EXYNOS4_PA_MDMA1 0x12850000
> +#define EXYNOS4_PA_S_MDMA1 0x12840000
> #define EXYNOS4_PA_PDMA0 0x12680000
> #define EXYNOS4_PA_PDMA1 0x12690000
> #define EXYNOS5_PA_MDMA0 0x10800000
Applied, thanks.
Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.
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