arm/imx6q: add core definitions and low-level debug uart
It adds the core definitions and low-level debug uart support
for imx6q.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a94a09b..18400a7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1402,7 +1402,7 @@
depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
- ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
+ ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || SOC_IMX6Q
select USE_GENERIC_SMP_HELPERS
select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
help
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 13c0631..a1cb484 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -184,6 +184,13 @@
Say Y here if you want kernel low-level debugging support
on i.MX50 or i.MX53.
+ config DEBUG_IMX6Q_UART
+ bool "i.MX6Q Debug UART"
+ depends on SOC_IMX6Q
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX6Q.
+
config DEBUG_S3C_UART0
depends on PLAT_SAMSUNG
bool "Use S3C UART 0 for low-level debug"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 8904caa..193439e 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -160,6 +160,7 @@
machine-$(CONFIG_ARCH_IMX_V4_V5) := imx
machine-$(CONFIG_ARCH_MX3) := imx
machine-$(CONFIG_ARCH_MX5) := mx5
+machine-$(CONFIG_ARCH_MX6) := imx
machine-$(CONFIG_ARCH_MXS) := mxs
machine-$(CONFIG_ARCH_NETX) := netx
machine-$(CONFIG_ARCH_NOMADIK) := nomadik
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index b4e1bf8..cc4b6e4 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -592,3 +592,18 @@
configurations for the board and its peripherals.
endif
+
+if ARCH_MX6
+comment "i.MX6 family:"
+
+config SOC_IMX6Q
+ bool "i.MX6 Quad support"
+ select ARM_GIC
+ select CACHE_L2X0
+ select CPU_V7
+ select USE_OF
+
+ help
+ This enables support for Freescale i.MX6 Quad processor.
+
+endif
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 116d4b2..b9ed198 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -60,3 +60,5 @@
obj-$(CONFIG_MACH_EUKREA_CPUIMX35) += mach-cpuimx35.o
obj-$(CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD) += eukrea_mbimxsd35-baseboard.o
obj-$(CONFIG_MACH_VPR200) += mach-vpr200.o
+
+obj-$(CONFIG_DEBUG_LL) += lluart.o
diff --git a/arch/arm/mach-imx/Makefile.boot b/arch/arm/mach-imx/Makefile.boot
index ebee18b..136cfc6 100644
--- a/arch/arm/mach-imx/Makefile.boot
+++ b/arch/arm/mach-imx/Makefile.boot
@@ -17,3 +17,7 @@
zreladdr-$(CONFIG_ARCH_MX3) := 0x80008000
params_phys-$(CONFIG_ARCH_MX3) := 0x80000100
initrd_phys-$(CONFIG_ARCH_MX3) := 0x80800000
+
+zreladdr-$(CONFIG_SOC_IMX6Q) += 0x10008000
+params_phys-$(CONFIG_SOC_IMX6Q) := 0x10000100
+initrd_phys-$(CONFIG_SOC_IMX6Q) := 0x10800000
diff --git a/arch/arm/mach-imx/lluart.c b/arch/arm/mach-imx/lluart.c
new file mode 100644
index 0000000..d4ab6f2
--- /dev/null
+++ b/arch/arm/mach-imx/lluart.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/init.h>
+#include <asm/page.h>
+#include <asm/sizes.h>
+#include <asm/mach/map.h>
+#include <mach/hardware.h>
+
+static struct map_desc imx_lluart_desc = {
+#ifdef CONFIG_DEBUG_IMX6Q_UART
+ .virtual = MX6Q_IO_P2V(MX6Q_UART4_BASE_ADDR),
+ .pfn = __phys_to_pfn(MX6Q_UART4_BASE_ADDR),
+ .length = MX6Q_UART4_SIZE,
+ .type = MT_DEVICE,
+#endif
+};
+
+void __init imx_lluart_map_io(void)
+{
+ if (imx_lluart_desc.virtual)
+ iotable_init(&imx_lluart_desc, 1);
+}
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index 502e45f..058d1c5 100644
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -29,6 +29,13 @@
This enables support for machines using Freescale's i.MX50 and i.MX51
processors.
+config ARCH_MX6
+ bool "i.MX6"
+ select AUTO_ZRELADDR if !ZBOOT_ROM
+ select ARM_PATCH_PHYS_VIRT
+ help
+ This enables support for systems based on the Freescale i.MX6 family
+
endchoice
source "arch/arm/mach-imx/Kconfig"
diff --git a/arch/arm/plat-mxc/include/mach/debug-macro.S b/arch/arm/plat-mxc/include/mach/debug-macro.S
index 7298601..6e192c4 100644
--- a/arch/arm/plat-mxc/include/mach/debug-macro.S
+++ b/arch/arm/plat-mxc/include/mach/debug-macro.S
@@ -24,6 +24,8 @@
#define UART_PADDR MX51_UART1_BASE_ADDR
#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)
#define UART_PADDR MX53_UART1_BASE_ADDR
+#elif defined (CONFIG_DEBUG_IMX6Q_UART)
+#define UART_PADDR MX6Q_UART4_BASE_ADDR
#endif
#define UART_VADDR IMX_IO_ADDRESS(UART_PADDR)
diff --git a/arch/arm/plat-mxc/include/mach/hardware.h b/arch/arm/plat-mxc/include/mach/hardware.h
index eba3118..a599f01 100644
--- a/arch/arm/plat-mxc/include/mach/hardware.h
+++ b/arch/arm/plat-mxc/include/mach/hardware.h
@@ -91,6 +91,11 @@
* SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000
* AIPS1 0x53f00000+0x100000 -> 0xf5700000+0x100000
* AIPS2 0x63f00000+0x100000 -> 0xf5300000+0x100000
+ * mx6q:
+ * SCU 0x00a00000+0x001000 -> 0xf4000000+0x001000
+ * CCM 0x020c4000+0x004000 -> 0xf42c4000+0x004000
+ * ANATOP 0x020c8000+0x001000 -> 0xf42c8000+0x001000
+ * UART4 0x021f0000+0x004000 -> 0xf42f0000+0x004000
*/
#define IMX_IO_P2V(x) ( \
0xf4000000 + \
@@ -102,6 +107,7 @@
#include <mach/mxc.h>
+#include <mach/mx6q.h>
#include <mach/mx50.h>
#include <mach/mx51.h>
#include <mach/mx53.h>
diff --git a/arch/arm/plat-mxc/include/mach/irqs.h b/arch/arm/plat-mxc/include/mach/irqs.h
index 00e812b..fd9efb0 100644
--- a/arch/arm/plat-mxc/include/mach/irqs.h
+++ b/arch/arm/plat-mxc/include/mach/irqs.h
@@ -14,9 +14,15 @@
#include <asm-generic/gpio.h>
/*
- * SoCs with TZIC interrupt controller have 128 IRQs, those with AVIC have 64
+ * SoCs with GIC interrupt controller have 160 IRQs, those with TZIC
+ * have 128 IRQs, and those with AVIC have 64.
+ *
+ * To support single image, the biggest number should be defined on
+ * top of the list.
*/
-#ifdef CONFIG_MXC_TZIC
+#if defined CONFIG_ARM_GIC
+#define MXC_INTERNAL_IRQS 160
+#elif defined CONFIG_MXC_TZIC
#define MXC_INTERNAL_IRQS 128
#else
#define MXC_INTERNAL_IRQS 64
diff --git a/arch/arm/plat-mxc/include/mach/mx6q.h b/arch/arm/plat-mxc/include/mach/mx6q.h
new file mode 100644
index 0000000..254a561
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/mx6q.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __MACH_MX6Q_H__
+#define __MACH_MX6Q_H__
+
+#define MX6Q_IO_P2V(x) IMX_IO_P2V(x)
+#define MX6Q_IO_ADDRESS(x) IOMEM(MX6Q_IO_P2V(x))
+
+/*
+ * The following are the blocks that need to be statically mapped.
+ * For other blocks, the base address really should be retrieved from
+ * device tree.
+ */
+#define MX6Q_SCU_BASE_ADDR 0x00a00000
+#define MX6Q_SCU_SIZE 0x1000
+#define MX6Q_CCM_BASE_ADDR 0x020c4000
+#define MX6Q_CCM_SIZE 0x4000
+#define MX6Q_ANATOP_BASE_ADDR 0x020c8000
+#define MX6Q_ANATOP_SIZE 0x1000
+#define MX6Q_UART4_BASE_ADDR 0x021f0000
+#define MX6Q_UART4_SIZE 0x4000
+
+#endif /* __MACH_MX6Q_H__ */