ARM: 6090/1: ux500: add U5500 support

Add basic support for the U5500 platform.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

9 files changed, 166 insertions, 6 deletions

diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 8ad5ee8107ae..6625e5bbf4d6 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -13,19 +13,24 @@ config UX500_SOC_DB8500
 config UX500_SOC_DB5500
         bool
 
-menu "ST-Ericsson platform type"
-
-comment "ST-Ericsson Multicore Mobile Platforms"
+choice
+        prompt "Ux500 target platform"
+        default MACH_U8500_MOP
 
 config MACH_U8500_MOP
-        bool "U8500 Early Development platform"
-        default y
+        bool "U8500 Development platform"
         select UX500_SOC_DB8500
         help
           Include support for mop500 development platform
           based on U8500 architecture. The platform is based
           on early drop silicon version of 8500.
-endmenu
+
+config MACH_U5500
+        bool "U5500 Development platform"
+        select UX500_SOC_DB5500
+        help
+          Include support for the U5500 development platform.
+endchoice
 
 config UX500_DEBUG_UART
         int "Ux500 UART to use for low-level debug"
diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index 2eb768583e21..c7bc4199e3a8 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -3,6 +3,8 @@
 #
 
 obj-y                           := clock.o cpu.o devices.o
+obj-$(CONFIG_UX500_SOC_DB5500)  += cpu-db5500.o devices-db5500.o
 obj-$(CONFIG_UX500_SOC_DB8500)  += cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_U8500_MOP)    += board-mop500.o
+obj-$(CONFIG_MACH_U5500)        += board-u5500.o
 obj-$(CONFIG_SMP)               += platsmp.o headsmp.o localtimer.o
diff --git a/arch/arm/mach-ux500/board-u5500.c b/arch/arm/mach-ux500/board-u5500.c
new file mode 100644
index 000000000000..4430e69cf538
--- /dev/null
+++ b/arch/arm/mach-ux500/board-u5500.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
+#include <linux/gpio.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+
+#include <mach/hardware.h>
+#include <mach/devices.h>
+#include <mach/setup.h>
+
+static struct amba_device *amba_board_devs[] __initdata = {
+        &ux500_uart0_device,
+        &ux500_uart1_device,
+        &ux500_uart2_device,
+};
+
+static void __init u5500_init_machine(void)
+{
+        u5500_init_devices();
+
+        amba_add_devices(amba_board_devs, ARRAY_SIZE(amba_board_devs));
+}
+
+MACHINE_START(U8500, "ST-Ericsson U5500 Platform")
+        .phys_io        = UX500_UART0_BASE,
+        .io_pg_offst    = (IO_ADDRESS(UX500_UART0_BASE) >> 18) & 0xfffc,
+        .boot_params    = 0x00000100,
+        .map_io         = u5500_map_io,
+        .init_irq       = ux500_init_irq,
+        .timer          = &ux500_timer,
+        .init_machine   = u5500_init_machine,
+MACHINE_END
diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c
index d16b8b5ca8c7..c325dad1679c 100644
--- a/arch/arm/mach-ux500/clock.c
+++ b/arch/arm/mach-ux500/clock.c
@@ -502,6 +502,10 @@ static int __init clk_init(void)
         if (cpu_is_u8500ed()) {
                 clk_prcmu_ops.enable = clk_prcmu_ed_enable;
                 clk_prcmu_ops.disable = clk_prcmu_ed_disable;
+        } else if (cpu_is_u5500()) {
+                /* Clock tree for U5500 not implemented yet */
+                clk_prcc_ops.enable = clk_prcc_ops.disable = NULL;
+                clk_prcmu_ops.enable = clk_prcmu_ops.disable = NULL;
         }
 
         clkdev_add_table(u8500_common_clks, ARRAY_SIZE(u8500_common_clks));
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
new file mode 100644
index 000000000000..6a3ac4539f16
--- /dev/null
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
+#include <linux/io.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/devices.h>
+#include <mach/setup.h>
+
+static struct map_desc u5500_io_desc[] __initdata = {
+        __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
+        __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
+        __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
+        __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
+        __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
+};
+
+static struct platform_device *u5500_platform_devs[] __initdata = {
+        &u5500_gpio_devs[0],
+        &u5500_gpio_devs[1],
+        &u5500_gpio_devs[2],
+        &u5500_gpio_devs[3],
+        &u5500_gpio_devs[4],
+        &u5500_gpio_devs[5],
+        &u5500_gpio_devs[6],
+        &u5500_gpio_devs[7],
+};
+
+void __init u5500_map_io(void)
+{
+        ux500_map_io();
+
+        iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
+}
+
+void __init u5500_init_devices(void)
+{
+        ux500_init_devices();
+
+        platform_add_devices(u5500_platform_devs,
+                             ARRAY_SIZE(u5500_platform_devs));
+}
diff --git a/arch/arm/mach-ux500/devices-db5500.c b/arch/arm/mach-ux500/devices-db5500.c
new file mode 100644
index 000000000000..33e5b56bebb6
--- /dev/null
+++ b/arch/arm/mach-ux500/devices-db5500.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+#include <mach/devices.h>
+
+static struct nmk_gpio_platform_data u5500_gpio_data[] = {
+        GPIO_DATA("GPIO-0-31", 0),
+        GPIO_DATA("GPIO-32-63", 32), /* 36..63 not routed to pin */
+        GPIO_DATA("GPIO-64-95", 64), /* 83..95 not routed to pin */
+        GPIO_DATA("GPIO-96-127", 96), /* 102..127 not routed to pin */
+        GPIO_DATA("GPIO-128-159", 128), /* 149..159 not routed to pin */
+        GPIO_DATA("GPIO-160-191", 160),
+        GPIO_DATA("GPIO-192-223", 192),
+        GPIO_DATA("GPIO-224-255", 224), /* 228..255 not routed to pin */
+};
+
+static struct resource u5500_gpio_resources[] = {
+        GPIO_RESOURCE(0),
+        GPIO_RESOURCE(1),
+        GPIO_RESOURCE(2),
+        GPIO_RESOURCE(3),
+        GPIO_RESOURCE(4),
+        GPIO_RESOURCE(5),
+        GPIO_RESOURCE(6),
+        GPIO_RESOURCE(7),
+};
+
+struct platform_device u5500_gpio_devs[] = {
+        GPIO_DEVICE(0),
+        GPIO_DEVICE(1),
+        GPIO_DEVICE(2),
+        GPIO_DEVICE(3),
+        GPIO_DEVICE(4),
+        GPIO_DEVICE(5),
+        GPIO_DEVICE(6),
+        GPIO_DEVICE(7),
+};
diff --git a/arch/arm/mach-ux500/include/mach/devices.h b/arch/arm/mach-ux500/include/mach/devices.h
index 76b3569f055e..0422af00a56e 100644
--- a/arch/arm/mach-ux500/include/mach/devices.h
+++ b/arch/arm/mach-ux500/include/mach/devices.h
@@ -10,6 +10,7 @@
 struct platform_device;
 struct amba_device;
 
+extern struct platform_device u5500_gpio_devs[];
 extern struct platform_device u8500_gpio_devs[];
 
 extern struct amba_device ux500_pl031_device;
diff --git a/arch/arm/mach-ux500/include/mach/hardware.h b/arch/arm/mach-ux500/include/mach/hardware.h
index 1353f1757057..8656379a8309 100644
--- a/arch/arm/mach-ux500/include/mach/hardware.h
+++ b/arch/arm/mach-ux500/include/mach/hardware.h
@@ -114,6 +114,15 @@ static inline bool cpu_is_u8500v1(void)
         return cpu_is_u8500() && (read_cpuid_id() & 15) == 1;
 }
 
+static inline bool cpu_is_u5500(void)
+{
+#ifdef CONFIG_UX500_SOC_DB5500
+        return 1;
+#else
+        return 0;
+#endif
+}
+
 #endif
 
 #endif                          /* __MACH_HARDWARE_H */
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index c730d078f9ab..e978dbd9e210 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -15,9 +15,11 @@
 #include <linux/init.h>
 
 extern void __init ux500_map_io(void);
+extern void __init u5500_map_io(void);
 extern void __init u8500_map_io(void);
 
 extern void __init ux500_init_devices(void);
+extern void __init u5500_init_devices(void);
 extern void __init u8500_init_devices(void);
 
 extern void __init ux500_init_irq(void);