ARM: ux500: delete U5500 support

This platform has been obsoleted and was only available inside of
ST-Ericsson, no users of this code are left in the world. This
deletes the core U5500 support entirely in the same manner as the
obsoleted U8500 silicon was previously deleted.

The cpu_is_u5500() macros that can read out the CPU ID is left
until the next kernel cycle, this makes it possible to merge
deletion of dependent drivers without breakage.

This also has the upside of removing the mailbox driver which was
our only driver that was outside the drivers/* hiearchy, now the
machine directory only handles machines and nothing else.

Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Jonas Aberg <jonas.aberg@stericsson.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/Kconfig

@@ -10,10 +10,6 @@ config UX500_SOC_COMMON
 	select ARM_ERRATA_764369
 	select CACHE_L2X0
 
-config UX500_SOC_DB5500
-	bool
-	select MFD_DB5500_PRCMU
-
 config UX500_SOC_DB8500
 	bool
 	select MFD_DB8500_PRCMU
@@ -45,15 +41,8 @@ config MACH_SNOWBALL
 	help
 	  Include support for the snowball development platform.
 
-config MACH_U5500
-	bool "U5500 Development platform"
-	select UX500_SOC_DB5500
-	help
-	  Include support for the U5500 development platform.
-
 config UX500_AUTO_PLATFORM
 	def_bool y
-	depends on !MACH_U5500
 	select MACH_MOP500
 	help
 	  At least one platform needs to be selected in order to build
@@ -74,18 +63,4 @@ config UX500_DEBUG_UART
 	  Choose the UART on which kernel low-level debug messages should be
 	  output.
 
-config U5500_MODEM_IRQ
-	bool "Modem IRQ support"
-	depends on UX500_SOC_DB5500
-	default y
-	help
-	  Add support for handling IRQ:s from modem side
-
-config U5500_MBOX
-	bool "Mailbox support"
-	depends on U5500_MODEM_IRQ
-	default y
-	help
-	  Add support for U5500 mailbox communication with modem side
-
 endif

arch/arm/mach-ux500/Makefile

@@ -5,16 +5,11 @@
 obj-y				:= clock.o cpu.o devices.o devices-common.o \
 				   id.o usb.o timer.o
 obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
-obj-$(CONFIG_UX500_SOC_DB5500)	+= cpu-db5500.o dma-db5500.o
 obj-$(CONFIG_UX500_SOC_DB8500)	+= cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)	+= board-mop500.o board-mop500-sdi.o \
 				board-mop500-regulators.o \
 				board-mop500-uib.o board-mop500-stuib.o \
 				board-mop500-u8500uib.o \
 				board-mop500-pins.o
-obj-$(CONFIG_MACH_U5500)	+= board-u5500.o board-u5500-sdi.o
 obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
 obj-$(CONFIG_HOTPLUG_CPU)	+= hotplug.o
-obj-$(CONFIG_U5500_MODEM_IRQ)	+= modem-irq-db5500.o
-obj-$(CONFIG_U5500_MBOX)	+= mbox-db5500.o
-

arch/arm/mach-ux500/cache-l2x0.c

@@ -36,9 +36,7 @@ static int __init ux500_l2x0_unlock(void)
 
 static int __init ux500_l2x0_init(void)
 {
-	if (cpu_is_u5500())
-		l2x0_base = __io_address(U5500_L2CC_BASE);
-	else if (cpu_is_u8500())
+	if (cpu_is_u8500())
 		l2x0_base = __io_address(U8500_L2CC_BASE);
 	else
 		ux500_unknown_soc();

arch/arm/mach-ux500/clock.c

@@ -149,9 +149,7 @@ static unsigned long clk_mtu_get_rate(struct clk *clk)
 	unsigned long mturate;
 	unsigned long retclk;
 
-	if (cpu_is_u5500())
-		addr = __io_address(U5500_PRCMU_BASE);
-	else if (cpu_is_u8500())
+	if (cpu_is_u8500())
 		addr = __io_address(U8500_PRCMU_BASE);
 	else
 		ux500_unknown_soc();
@@ -705,14 +703,6 @@ late_initcall(clk_init_smp_twd_cpufreq);
 
 int __init clk_init(void)
 {
-	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;
-		clk_uartclk.rate = 36360000;
-		clk_sdmmcclk.rate = 99900000;
-	}
-
 	clkdev_add_table(u8500_clks, ARRAY_SIZE(u8500_clks));
 	clkdev_add(&clk_smp_twd_lookup);