arm: mach-kirkwood: convert to use mvebu-mbus driver

This commit migrates the mach-kirkwood platforms to use the mvebu-mbus driver and therefore removes the Kirkwood-specific addr-map code. The kirkwood_init_early() function is now responsible for initializing the mvebu-mbus driver by calling mvebu_mbus_init(). The address decoding windows are now registered in the kirkwood_setup_wins() function. It is worth noting that the four PCIe address decoding windows will ultimately no longer have to be registered here: it will be done automatically by the PCIe driver once Kirkwood has been migrated to use the upcoming mvebu PCIe driver. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
git-mirror · Apr 15, 2013 · 5cc0673 · 5cc0673
1 parent 87e1bed
commit 5cc0673
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Showing 9 changed files with 45 additions and 100 deletions.
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
@@ -575,6 +575,7 @@ config ARCH_KIRKWOOD
 	select PINCTRL
 	select PINCTRL_KIRKWOOD
 	select PLAT_ORION_LEGACY
+	select MVEBU_MBUS
 	help
 	  Support for the following Marvell Kirkwood series SoCs:
 	  88F6180, 88F6192 and 88F6281.

diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
@@ -1,4 +1,4 @@
-obj-y				+= common.o addr-map.o irq.o pcie.o mpp.o
+obj-y				+= common.o irq.o pcie.o mpp.o
 
 obj-$(CONFIG_MACH_DB88F6281_BP)		+= db88f6281-bp-setup.o
 obj-$(CONFIG_MACH_RD88F6192_NAS)	+= rd88f6192-nas-setup.o

diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
@@ -93,7 +93,7 @@ static void __init kirkwood_dt_init(void)
 	 */
 	writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
 
-	kirkwood_setup_cpu_mbus();
+	kirkwood_setup_wins();
 
 	kirkwood_l2_init();
 

diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
@@ -33,7 +33,6 @@
 #include <linux/platform_data/usb-ehci-orion.h>
 #include <plat/common.h>
 #include <plat/time.h>
-#include <plat/addr-map.h>
 #include <linux/platform_data/dma-mv_xor.h>
 #include "common.h"
 
@@ -535,6 +534,9 @@ void __init kirkwood_init_early(void)
 	 * the allocations won't fail.
 	 */
 	init_dma_coherent_pool_size(SZ_1M);
+	mvebu_mbus_init("marvell,kirkwood-mbus",
+			BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
+			DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ);
 }
 
 int kirkwood_tclk;
@@ -650,6 +652,38 @@ char * __init kirkwood_id(void)
 	}
 }
 
+void __init kirkwood_setup_wins(void)
+{
+	/*
+	 * The PCIe windows will no longer be statically allocated
+	 * here once Kirkwood is migrated to the pci-mvebu driver.
+	 */
+	mvebu_mbus_add_window_remap_flags("pcie0.0",
+					  KIRKWOOD_PCIE_IO_PHYS_BASE,
+					  KIRKWOOD_PCIE_IO_SIZE,
+					  KIRKWOOD_PCIE_IO_BUS_BASE,
+					  MVEBU_MBUS_PCI_IO);
+	mvebu_mbus_add_window_remap_flags("pcie0.0",
+					  KIRKWOOD_PCIE_MEM_PHYS_BASE,
+					  KIRKWOOD_PCIE_MEM_SIZE,
+					  MVEBU_MBUS_NO_REMAP,
+					  MVEBU_MBUS_PCI_MEM);
+	mvebu_mbus_add_window_remap_flags("pcie1.0",
+					  KIRKWOOD_PCIE1_IO_PHYS_BASE,
+					  KIRKWOOD_PCIE1_IO_SIZE,
+					  KIRKWOOD_PCIE1_IO_BUS_BASE,
+					  MVEBU_MBUS_PCI_IO);
+	mvebu_mbus_add_window_remap_flags("pcie1.0",
+					  KIRKWOOD_PCIE1_MEM_PHYS_BASE,
+					  KIRKWOOD_PCIE1_MEM_SIZE,
+					  MVEBU_MBUS_NO_REMAP,
+					  MVEBU_MBUS_PCI_MEM);
+	mvebu_mbus_add_window("nand", KIRKWOOD_NAND_MEM_PHYS_BASE,
+			      KIRKWOOD_NAND_MEM_SIZE);
+	mvebu_mbus_add_window("sram", KIRKWOOD_SRAM_PHYS_BASE,
+			      KIRKWOOD_SRAM_SIZE);
+}
+
 void __init kirkwood_l2_init(void)
 {
 #ifdef CONFIG_CACHE_FEROCEON_L2
@@ -675,7 +709,7 @@ void __init kirkwood_init(void)
 	 */
 	writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
 
-	kirkwood_setup_cpu_mbus();
+	kirkwood_setup_wins();
 
 	kirkwood_l2_init();
 

diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
@@ -30,7 +30,7 @@ void kirkwood_init(void);
 void kirkwood_init_early(void);
 void kirkwood_init_irq(void);
 
-void kirkwood_setup_cpu_mbus(void);
+void kirkwood_setup_wins(void);
 
 void kirkwood_enable_pcie(void);
 void kirkwood_pcie_id(u32 *dev, u32 *rev);

diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -60,8 +60,9 @@
  * Register Map
  */
 #define DDR_VIRT_BASE		(KIRKWOOD_REGS_VIRT_BASE + 0x00000)
-#define DDR_PHYS_BASE		(KIRKWOOD_REGS_PHYS_BASE + 0x00000)
-#define  DDR_WINDOW_CPU_BASE	(DDR_VIRT_BASE + 0x1500)
+#define DDR_PHYS_BASE           (KIRKWOOD_REGS_PHYS_BASE + 0x00000)
+#define  DDR_WINDOW_CPU_BASE    (DDR_PHYS_BASE + 0x1500)
+#define  DDR_WINDOW_CPU_SZ      (0x20)
 #define DDR_OPERATION_BASE	(DDR_PHYS_BASE + 0x1418)
 
 #define DEV_BUS_PHYS_BASE	(KIRKWOOD_REGS_PHYS_BASE + 0x10000)
@@ -80,6 +81,8 @@
 
 #define BRIDGE_VIRT_BASE	(KIRKWOOD_REGS_VIRT_BASE + 0x20000)
 #define BRIDGE_PHYS_BASE	(KIRKWOOD_REGS_PHYS_BASE + 0x20000)
+#define  BRIDGE_WINS_BASE       (BRIDGE_PHYS_BASE)
+#define  BRIDGE_WINS_SZ         (0x80)
 
 #define CRYPTO_PHYS_BASE	(KIRKWOOD_REGS_PHYS_BASE + 0x30000)
 

diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
@@ -17,7 +17,6 @@
 #include <asm/mach/pci.h>
 #include <plat/pcie.h>
 #include <mach/bridge-regs.h>
-#include <plat/addr-map.h>
 #include "common.h"
 
 static void kirkwood_enable_pcie_clk(const char *port)

diff --git a/arch/arm/plat-orion/Makefile b/arch/arm/plat-orion/Makefile
@@ -3,7 +3,6 @@
 #
 ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
 
-obj-$(CONFIG_ARCH_KIRKWOOD)       += addr-map.o
 obj-$(CONFIG_ARCH_DOVE)           += addr-map.o
 obj-$(CONFIG_ARCH_ORION5X)        += addr-map.o
 obj-$(CONFIG_ARCH_MV78XX0)        += addr-map.o