misc/bt-host: Add facility for interrupt-driven BT messages

arch/arm/Kconfig

@@ -880,6 +880,8 @@ source "arch/arm/mach-meson/Kconfig"
 
 source "arch/arm/mach-moxart/Kconfig"
 
+source "arch/arm/mach-aspeed/Kconfig"
+
 source "arch/arm/mach-mv78xx0/Kconfig"
 
 source "arch/arm/mach-imx/Kconfig"

arch/arm/Kconfig.debug

@@ -1209,6 +1209,7 @@ choice
 
 	config DEBUG_LL_UART_8250
 		bool "Kernel low-level debugging via 8250 UART"
+		select DEBUG_UART_8250
 		help
 		  Say Y here if you wish the debug print routes to direct
 		  their output to an 8250 UART.  You can use this option

arch/arm/Makefile

@@ -184,6 +184,8 @@ machine-$(CONFIG_ARCH_LPC32XX)		+= lpc32xx
 machine-$(CONFIG_ARCH_MESON)		+= meson
 machine-$(CONFIG_ARCH_MMP)		+= mmp
 machine-$(CONFIG_ARCH_MOXART)		+= moxart
+machine-$(CONFIG_ARCH_ASPEED)		+= aspeed
+machine-$(CONFIG_ARCH_MSM)		+= msm
 machine-$(CONFIG_ARCH_MV78XX0)		+= mv78xx0
 machine-$(CONFIG_ARCH_MVEBU)		+= mvebu
 machine-$(CONFIG_ARCH_MXC)		+= imx
@@ -258,13 +260,11 @@ endif
 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
 platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))
 
-ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
 ifeq ($(KBUILD_SRC),)
 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
 else
 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
 endif
-endif
 
 export	TEXT_OFFSET GZFLAGS MMUEXT
 

arch/arm/boot/compressed/atags_to_fdt.c

@@ -1,6 +1,8 @@
 #include <asm/setup.h>
 #include <libfdt.h>
 
+#include CONFIG_UNCOMPRESS_INCLUDE
+
 #if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND)
 #define do_extend_cmdline 1
 #else
@@ -105,6 +107,34 @@ static void merge_fdt_bootargs(void *fdt, const char *fdt_cmdline)
  *    = 1 -> bad ATAG (may retry with another possible ATAG pointer)
  *    < 0 -> error from libfdt
  */
+void putstr(const char *ptr)
+{
+	char c;
+
+	while ((c = *ptr++) != '\0') {
+		if (c == '\n')
+			putc('\r');
+		putc(c);
+	}
+
+	flush();
+}
+
+static void puthex(unsigned long val)
+{
+	int i, nibbles = sizeof(val)*2;
+	char buf[sizeof(val)*2+1];
+
+	for (i = nibbles-1;  i >= 0;  i--) {
+		buf[i] = (val & 0xf) + '0';
+		if (buf[i] > '9')
+			buf[i] += ('a'-'0'-10);
+		val >>= 4;
+	}
+	buf[nibbles] = '\0';
+	putstr(buf);
+}
+
 int atags_to_fdt(void *atag_list, void *fdt, int total_space)
 {
 	struct tag *atag = atag_list;
@@ -114,6 +144,12 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
 	int memcount = 0;
 	int ret, memsize;
 
+	putstr("atags_to_fdt\natags=");
+	puthex((unsigned long)atag_list);
+	putstr("\nfdt=");
+	puthex((unsigned long)fdt);
+	putstr("\n");
+
 	/* make sure we've got an aligned pointer */
 	if ((u32)atag_list & 0x3)
 		return 1;
@@ -141,6 +177,9 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
 			 * the device tree and in the tags, the one from the
 			 * tags will be chosen.
 			 */
+			putstr("cmdline=");
+			putstr(atag->u.cmdline.cmdline);
+			putstr("\n");
 			if (do_extend_cmdline)
 				merge_fdt_bootargs(fdt,
 						   atag->u.cmdline.cmdline);
@@ -164,6 +203,11 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
 					cpu_to_fdt64(atag->u.mem.start);
 				mem_reg_prop64[memcount++] =
 					cpu_to_fdt64(atag->u.mem.size);
+				putstr("mem=");
+				puthex(atag->u.mem.start);
+				putstr("/");
+				puthex(atag->u.mem.size);
+				putstr("\n");
 			} else {
 				mem_reg_property[memcount++] =
 					cpu_to_fdt32(atag->u.mem.start);

arch/arm/boot/dts/Makefile

@@ -738,6 +738,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt8127-moose.dtb \
 	mt8135-evbp1.dtb
 dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb
+dtb-$(CONFIG_MACH_OPP_PALMETTO_BMC) += aspeed-bmc-opp-palmetto.dtb
 endif
 
 always		:= $(dtb-y)

arch/arm/boot/dts/aspeed-bmc-opp-barreleye.dts

@@ -0,0 +1,42 @@
+/dts-v1/;
+
+#include "ast2400.dtsi"
+
+/ {
+	model = "Barrelye BMC";
+	compatible = "rackspace,barreleye-bmc", "aspeed,ast2400";
+	ahb {
+		apb {
+			i2c: i2c@1e78a040 {
+				i2c0: i2c-bus@0x40 {
+					eeprom@50 {
+						compatible = "atmel,24c256";
+						reg = <0x50>;
+						pagesize = <64>;
+					};
+					rtc@68 {
+						compatible = "dallas,ds3231";
+						reg = <0x68>;
+						// interrupts = <GPIOF0>
+					};
+					lm75@4a {
+						compatible = "national,lm75";
+						reg = <0x4a>;
+					};
+				};
+
+				i2c6: i2c-bus@0x1C0 {
+					nct7904@2d {
+						compatible = "nuvoton,nct7904";
+						reg = <0x2d>;
+					};
+					nct7904@2e {
+						compatible = "nuvoton,nct7904";
+						reg = <0x2e>;
+					};
+				};
+			};
+		};
+	};
+};
+

arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts

@@ -0,0 +1,34 @@
+/dts-v1/;
+
+#include "ast2400.dtsi"
+
+/ {
+	model = "Palmetto BMC";
+	compatible = "tyan,palmetto-bmc", "aspeed,ast2400";
+
+	ahb {
+		apb {
+			i2c: i2c@1e78a040 {
+				i2c0: i2c-bus@0x40 {
+					eeprom@50 {
+						compatible = "atmel,24c256";
+						reg = <0x50>;
+						pagesize = <64>;
+					};
+					rtc@68 {
+						compatible = "dallas,ds3231";
+						reg = <0x68>;
+						// interrupts = <GPIOF0>
+					};
+				};
+
+				i2c2: i2c-bus@0xC0 {
+					tmp423@4c {
+						compatible = "ti,tmp423";
+						reg = <0x4c>;
+					};
+				};
+			};
+		};
+	};
+};