[PATCH v3 3/6] ARM: mx25: Remove static memory mapping

Fabio Estevam
2015-03-13T13:31:55Z

We use dynamic memory mapping when using dt, so remove all the static mappings.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v2:
- Remove the static mappings in one single patch

arch/arm/mach-imx/Makefile | 2 +-
arch/arm/mach-imx/common.h | 4 --
arch/arm/mach-imx/mach-imx25.c | 20 +++++++++-
arch/arm/mach-imx/mm-imx25.c | 89 ------------------------------------------
4 files changed, 19 insertions(+), 96 deletions(-)
delete mode 100644 arch/arm/mach-imx/mm-imx25.c

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 86c6470..3244cf1 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -3,7 +3,7 @@ obj-y := time.o cpu.o system.o irq-common.o
obj-$(CONFIG_SOC_IMX1) += clk-imx1.o mm-imx1.o
obj-$(CONFIG_SOC_IMX21) += clk-imx21.o mm-imx21.o

-obj-$(CONFIG_SOC_IMX25) += clk-imx25.o mm-imx25.o cpu-imx25.o mach-imx25.o
+obj-$(CONFIG_SOC_IMX25) += clk-imx25.o cpu-imx25.o mach-imx25.o

obj-$(CONFIG_SOC_IMX27) += cpu-imx27.o pm-imx27.o
obj-$(CONFIG_SOC_IMX27) += clk-imx27.o mm-imx27.o ehci-imx27.o
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index a12b52d..771ecfe 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -23,13 +23,11 @@ struct of_device_id;

void mx1_map_io(void);
void mx21_map_io(void);
-void mx25_map_io(void);
void mx27_map_io(void);
void mx31_map_io(void);
void mx35_map_io(void);
void imx1_init_early(void);
void imx21_init_early(void);
-void imx25_init_early(void);
void imx27_init_early(void);
void imx31_init_early(void);
void imx35_init_early(void);
@@ -37,13 +35,11 @@ void mxc_init_irq(void __iomem *);
void tzic_init_irq(void);
void mx1_init_irq(void);
void mx21_init_irq(void);
-void mx25_init_irq(void);
void mx27_init_irq(void);
void mx31_init_irq(void);
void mx35_init_irq(void);
void imx1_soc_init(void);
void imx21_soc_init(void);
-void imx25_soc_init(void);
void imx27_soc_init(void);
void imx31_soc_init(void);
void imx35_soc_init(void);
diff --git a/arch/arm/mach-imx/mach-imx25.c b/arch/arm/mach-imx/mach-imx25.c
index 25defbd..91b36ec 100644
--- a/arch/arm/mach-imx/mach-imx25.c
+++ b/arch/arm/mach-imx/mach-imx25.c
@@ -10,12 +10,29 @@
*/

#include <linux/irq.h>
+#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include "common.h"
-#include "mx25.h"
+#include "hardware.h"
+
+void static __init imx25_init_early(void)
+{
+ mxc_set_cpu_type(MXC_CPU_MX25);
+}
+
+void static __init mx25_init_irq(void)
+{
+ struct device_node *np;
+ void __iomem *avic_base;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,avic");
+ avic_base = of_iomap(np, 0);
+ BUG_ON(!avic_base);
+ mxc_init_irq(avic_base);
+}

static const char * const imx25_dt_board_compat[] __initconst = {
"fsl,imx25",
@@ -23,7 +40,6 @@ static const char * const imx25_dt_board_compat[] __initconst = {
};

DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)")
- .map_io = mx25_map_io,
.init_early = imx25_init_early,
.init_irq = mx25_init_irq,
.dt_compat = imx25_dt_board_compat,
diff --git a/arch/arm/mach-imx/mm-imx25.c b/arch/arm/mach-imx/mm-imx25.c
deleted file mode 100644
index 5211f62..0000000
--- a/arch/arm/mach-imx/mm-imx25.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 1999,2000 Arm Limited
- * Copyright (C) 2000 Deep Blue Solutions Ltd
- * Copyright (C) 2002 Shane Nay (shane at minirl.com)
- * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
- * - add MX31 specific definitions
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/pinctrl/machine.h>
-
-#include <asm/pgtable.h>
-#include <asm/mach/map.h>
-
-#include "common.h"
-#include "devices/devices-common.h"
-#include "hardware.h"
-#include "iomux-v3.h"
-#include "mx25.h"
-
-/*
- * This table defines static virtual address mappings for I/O regions.
- * These are the mappings common across all MX25 boards.
- */
-static struct map_desc mx25_io_desc[] __initdata = {
- imx_map_entry(MX25, AVIC, MT_DEVICE_NONSHARED),
- imx_map_entry(MX25, AIPS1, MT_DEVICE_NONSHARED),
- imx_map_entry(MX25, AIPS2, MT_DEVICE_NONSHARED),
-};
-
-/*
- * This function initializes the memory map. It is called during the
- * system startup to create static physical to virtual memory mappings
- * for the IO modules.
- */
-void __init mx25_map_io(void)
-{
- iotable_init(mx25_io_desc, ARRAY_SIZE(mx25_io_desc));
-}
-
-void __init imx25_init_early(void)
-{
- mxc_set_cpu_type(MXC_CPU_MX25);
- mxc_iomux_v3_init(MX25_IO_ADDRESS(MX25_IOMUXC_BASE_ADDR));
-}
-
-void __init mx25_init_irq(void)
-{
- mxc_init_irq(MX25_IO_ADDRESS(MX25_AVIC_BASE_ADDR));
-}
-
-static struct sdma_platform_data imx25_sdma_pdata __initdata = {
- .fw_name = "sdma-imx25.bin",
-};
-
-static const struct resource imx25_audmux_res[] __initconst = {
- DEFINE_RES_MEM(MX25_AUDMUX_BASE_ADDR, SZ_16K),
-};
-
-void __init imx25_soc_init(void)
-{
- mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR));
- mxc_device_init();
-
- /* i.mx25 has the i.mx35 type gpio */
- mxc_register_gpio("imx35-gpio", 0, MX25_GPIO1_BASE_ADDR, SZ_16K, MX25_INT_GPIO1, 0);
- mxc_register_gpio("imx35-gpio", 1, MX25_GPIO2_BASE_ADDR, SZ_16K, MX25_INT_GPIO2, 0);
- mxc_register_gpio("imx35-gpio", 2, MX25_GPIO3_BASE_ADDR, SZ_16K, MX25_INT_GPIO3, 0);
- mxc_register_gpio("imx35-gpio", 3, MX25_GPIO4_BASE_ADDR, SZ_16K, MX25_INT_GPIO4, 0);
-
- pinctrl_provide_dummies();
- /* i.mx25 has the i.mx35 type sdma */
- imx_add_imx_sdma("imx35-sdma", MX25_SDMA_BASE_ADDR, MX25_INT_SDMA, &imx25_sdma_pdata);
- /* i.mx25 has the i.mx31 type audmux */
- platform_device_register_simple("imx31-audmux", 0, imx25_audmux_res,
- ARRAY_SIZE(imx25_audmux_res));
-}
--
1.9.1