linux-kernel - [PATCH 13/18] DMAENGINE: ste_dma40: arch updates for LCLA and LCPA

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Date:	Tue, 1 Jun 2010 14:22:09 +0200
From:	Linus Walleij <linus.walleij@...ricsson.com>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	<linux-kernel@...r.kernel.org>,
	Jonas Aaberg <jonas.aberg@...ricsson.com>,
	Linus Walleij <linus.walleij@...ricsson.com>
Subject: [PATCH 13/18] DMAENGINE: ste_dma40: arch updates for LCLA and LCPA

From: Jonas Aaberg <jonas.aberg@...ricsson.com>

This follows on the patch to allocate LCLA dynamically: the
on-chip memory is needed for other things so now that that
we're using it dynamically we can remove the LCLA resource
altogether and free up some ESRAM memory.

Signed-off-by: Jonas Aaberg <jonas.aberg@...ricsson.com>
Signed-off-by: Linus Walleij <linus.walleij@...ricsson.com>
---
 arch/arm/mach-ux500/devices-db8500.c           |   19 +++++++------------
 arch/arm/mach-ux500/include/mach/db8500-regs.h |    5 ++---
 2 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index 8229034..638964e 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -113,26 +113,21 @@ struct platform_device u8500_i2c4_device = {
 static struct resource dma40_resources[] = {
 	[0] = {
 		.start = U8500_DMA_BASE,
-		.end = U8500_DMA_BASE + SZ_4K - 1,
+		.end   = U8500_DMA_BASE + SZ_4K - 1,
 		.flags = IORESOURCE_MEM,
-		.name = "base",
+		.name  = "base",
 	},
 	[1] = {
 		.start = U8500_DMA_LCPA_BASE,
-		.end = U8500_DMA_LCPA_BASE + SZ_4K - 1,
+		.end   = U8500_DMA_LCPA_BASE + 2 * SZ_1K - 1,
 		.flags = IORESOURCE_MEM,
-		.name = "lcpa",
+		.name  = "lcpa",
 	},
 	[2] = {
-		.start = U8500_DMA_LCLA_BASE,
-		.end = U8500_DMA_LCLA_BASE + 16 * 1024 - 1,
-		.flags = IORESOURCE_MEM,
-		.name = "lcla",
-	},
-	[3] = {
 		.start = IRQ_DMA,
-		.end = IRQ_DMA,
-		.flags = IORESOURCE_IRQ}
+		.end   = IRQ_DMA,
+		.flags = IORESOURCE_IRQ,
+	}
 };
 
 /* Default configuration for physcial memcpy */
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 85fc6a8..897fa35 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -15,9 +15,8 @@
 #define U8500_ESRAM_BANK2	(U8500_ESRAM_BANK1 + U8500_ESRAM_BANK_SIZE)
 #define U8500_ESRAM_BANK3	(U8500_ESRAM_BANK2 + U8500_ESRAM_BANK_SIZE)
 #define U8500_ESRAM_BANK4	(U8500_ESRAM_BANK3 + U8500_ESRAM_BANK_SIZE)
-/* Use bank 4 for DMA LCLA and LCPA */
-#define U8500_DMA_LCLA_BASE	U8500_ESRAM_BANK4
-#define U8500_DMA_LCPA_BASE	(U8500_ESRAM_BANK4 + 0x4000)
+/* Use bank 4 for DMA LCPA */
+#define U8500_DMA_LCPA_BASE	U8500_ESRAM_BANK4
 
 #define U8500_PER3_BASE		0x80000000
 #define U8500_STM_BASE		0x80100000
-- 
1.6.3.3

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