[PATCH v3 27/30] ARM: kirkwood: use fixed PCI i/o mapping
From: Rob Herring <hidden>
Date: 2012-03-02 03:13:39
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
From: Rob Herring <redacted> Signed-off-by: Rob Herring <redacted> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Nicolas Pitre <nico@fluxnic.net> --- arch/arm/Kconfig | 1 - arch/arm/mach-kirkwood/common.c | 21 +++++++++------------ arch/arm/mach-kirkwood/include/mach/io.h | 24 ------------------------ arch/arm/mach-kirkwood/include/mach/kirkwood.h | 8 +++----- arch/arm/mach-kirkwood/pcie.c | 8 ++++---- 5 files changed, 16 insertions(+), 46 deletions(-) delete mode 100644 arch/arm/mach-kirkwood/include/mach/io.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 24fe29e..50e68b6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig@@ -563,7 +563,6 @@ config ARCH_KIRKWOOD select PCI select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H select PLAT_ORION help Support for the following Marvell Kirkwood series SoCs:
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index cc15426..db4caa3 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c@@ -20,6 +20,7 @@ #include <asm/timex.h> #include <asm/kexec.h> #include <asm/mach/map.h> +#include <asm/mach/pci.h> #include <asm/mach/time.h> #include <mach/kirkwood.h> #include <mach/bridge-regs.h>
@@ -37,16 +38,6 @@ ****************************************************************************/ static struct map_desc kirkwood_io_desc[] __initdata = { { - .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE), - .length = KIRKWOOD_PCIE_IO_SIZE, - .type = MT_DEVICE, - }, { - .virtual = KIRKWOOD_PCIE1_IO_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE), - .length = KIRKWOOD_PCIE1_IO_SIZE, - .type = MT_DEVICE, - }, { .virtual = KIRKWOOD_REGS_VIRT_BASE, .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE), .length = KIRKWOOD_REGS_SIZE,
@@ -56,6 +47,12 @@ static struct map_desc kirkwood_io_desc[] __initdata = { void __init kirkwood_map_io(void) { + unsigned long pci_io_pfn[] = { + __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE), + __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE), + }; + pci_map_io_pfn(pci_io_pfn, ARRAY_SIZE(pci_io_pfn)); + iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc)); }
@@ -472,7 +469,7 @@ void __init kirkwood_init(void) kirkwood_xor1_init(); kirkwood_crypto_init(); -#ifdef CONFIG_KEXEC +#ifdef CONFIG_KEXEC kexec_reinit = kirkwood_enable_pcie; #endif }
@@ -502,7 +499,7 @@ static int __init kirkwood_clock_gate(void) /* Disable PHY */ writel(readl(SATA1_IF_CTRL) | 0x200, SATA1_IF_CTRL); } - + /* For PCIe: first shutdown the phy */ if (!(kirkwood_clk_ctrl & CGC_PEX0)) { writel(readl(PCIE_LINK_CTRL) | 0x10, PCIE_LINK_CTRL);
diff --git a/arch/arm/mach-kirkwood/include/mach/io.h b/arch/arm/mach-kirkwood/include/mach/io.h
deleted file mode 100644
index 5d0ab61..0000000
--- a/arch/arm/mach-kirkwood/include/mach/io.h
+++ /dev/null@@ -1,24 +0,0 @@ -/* - * arch/arm/mach-kirkwood/include/mach/io.h - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __ASM_ARCH_IO_H -#define __ASM_ARCH_IO_H - -#include "kirkwood.h" - -#define IO_SPACE_LIMIT 0xffffffff - -static inline void __iomem *__io(unsigned long addr) -{ - return (void __iomem *)((addr - KIRKWOOD_PCIE_IO_BUS_BASE) - + KIRKWOOD_PCIE_IO_VIRT_BASE); -} - -#define __io(a) __io(a) - -#endif
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index fede3d5..63565fb 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h@@ -37,14 +37,12 @@ #define KIRKWOOD_NAND_MEM_SIZE SZ_1K #define KIRKWOOD_PCIE1_IO_PHYS_BASE 0xf3000000 -#define KIRKWOOD_PCIE1_IO_VIRT_BASE 0xfef00000 -#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00100000 -#define KIRKWOOD_PCIE1_IO_SIZE SZ_1M +#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00010000 +#define KIRKWOOD_PCIE1_IO_SIZE SZ_64K #define KIRKWOOD_PCIE_IO_PHYS_BASE 0xf2000000 -#define KIRKWOOD_PCIE_IO_VIRT_BASE 0xfee00000 #define KIRKWOOD_PCIE_IO_BUS_BASE 0x00000000 -#define KIRKWOOD_PCIE_IO_SIZE SZ_1M +#define KIRKWOOD_PCIE_IO_SIZE SZ_64K #define KIRKWOOD_REGS_PHYS_BASE 0xf1000000 #define KIRKWOOD_REGS_VIRT_BASE 0xfed00000
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index a066a6d..11f557e 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c@@ -126,8 +126,8 @@ static void __init pcie0_ioresources_init(struct pcie_port *pp) * IORESOURCE_IO */ pp->res[0].name = "PCIe 0 I/O Space"; - pp->res[0].start = KIRKWOOD_PCIE_IO_BUS_BASE; - pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1; + pp->res[0].start = 0; + pp->res[0].end = pp->res[0].start + SZ_64K - 1; pp->res[0].flags = IORESOURCE_IO; /*
@@ -148,8 +148,8 @@ static void __init pcie1_ioresources_init(struct pcie_port *pp) * IORESOURCE_IO */ pp->res[0].name = "PCIe 1 I/O Space"; - pp->res[0].start = KIRKWOOD_PCIE1_IO_BUS_BASE; - pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE1_IO_SIZE - 1; + pp->res[0].start = SZ_64K; + pp->res[0].end = pp->res[0].start + SZ_64K - 1; pp->res[0].flags = IORESOURCE_IO; /*
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1.7.5.4