cpu/ti/am335x: Move from cpu to soc in tree

The AM335X is a SoC, so should be in the soc tree.

This moves all the existing am335x code to soc/ and updates any
references. It also adds a soc.c file as required for the ramstage.

Change-Id: Ic1ccb0e9b9c24a8b211b723b5f4cc26cdd0eaaab
Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44378
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

MAINTAINERS

@@ -550,7 +550,7 @@ F:	src/vendorcode/intel/fsp/fsp2_0/copperlake_sp
 ORPHANED ARM SOCS
 S:	Orphaned
 F:	src/cpu/armltd/
-F:	src/cpu/ti/
+F:	src/soc/ti/
 F:	src/soc/qualcomm/
 F:	src/soc/samsung/
 F:	util/exynos/

src/cpu/ti/Kconfig

@@ -1 +0,0 @@
-source "src/cpu/ti/am335x/Kconfig"

src/cpu/ti/Makefile.inc

@@ -1 +0,0 @@
-subdirs-$(CONFIG_CPU_TI_AM335X) += am335x

src/mainboard/ti/beaglebone/Kconfig

@@ -4,7 +4,7 @@ if BOARD_TI_BEAGLEBONE
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
-	select CPU_TI_AM335X
+	select SOC_TI_AM335X
 	select BOARD_ROMSIZE_KB_4096
 	select MISSING_BOARD_RESET
 

src/mainboard/ti/beaglebone/bootblock.c

@@ -3,9 +3,9 @@
 #include <device/mmio.h>
 #include <bootblock_common.h>
 #include <console/uart.h>
-#include <cpu/ti/am335x/clock.h>
+#include <soc/ti/am335x/clock.h>
-#include <cpu/ti/am335x/gpio.h>
+#include <soc/ti/am335x/gpio.h>
-#include <cpu/ti/am335x/pinmux.h>
+#include <soc/ti/am335x/pinmux.h>
 
 #include "leds.h"
 

src/mainboard/ti/beaglebone/devicetree.cb

@@ -1,5 +1,5 @@
 ## SPDX-License-Identifier: GPL-2.0-only
 
-chip cpu/ti/am335x
+chip soc/ti/am335x
 	device cpu_cluster 0 on end
 end

src/mainboard/ti/beaglebone/leds.c

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
-#include <cpu/ti/am335x/gpio.h>
+#include <soc/ti/am335x/gpio.h>
 
 #include "leds.h"
 

src/soc/ti/Kconfig

@@ -0,0 +1 @@
+source "src/soc/ti/am335x/Kconfig"

src/soc/ti/Makefile.inc

@@ -0,0 +1 @@
+subdirs-$(CONFIG_SOC_TI_AM335X) += am335x

src/soc/ti/am335x/Kconfig

@@ -1,4 +1,4 @@
-config CPU_TI_AM335X
+config SOC_TI_AM335X
 	select ARCH_BOOTBLOCK_ARMV7
 	select ARCH_VERSTAGE_ARMV7
 	select ARCH_ROMSTAGE_ARMV7
@@ -9,10 +9,10 @@ config CPU_TI_AM335X
 	bool
 	default n
 
-if CPU_TI_AM335X
+if SOC_TI_AM335X
 
 config MEMLAYOUT_LD_FILE
 	string
-	default "src/cpu/ti/am335x/memlayout.ld"
+	default "src/soc/ti/am335x/memlayout.ld"
 
 endif

src/soc/ti/am335x/Makefile.inc

@@ -1,3 +1,4 @@
+ifeq ($(CONFIG_SOC_TI_AM335X),y)
 bootblock-y	+= bootblock.c
 bootblock-y	+= bootblock_media.c
 bootblock-y	+= dmtimer.c
@@ -13,6 +14,7 @@ romstage-y	+= monotonic_timer.c
 ramstage-y	+= dmtimer.c
 ramstage-y	+= monotonic_timer.c
 ramstage-y	+= nand.c
+ramstage-y  += soc.c
 
 bootblock-y	+= uart.c
 romstage-y	+= uart.c
@@ -51,3 +53,4 @@ omap-header-y	+= header.c
 
 omap-header-srcs += $(CONFIG_MEMLAYOUT_LD_FILE)
 omap-header-y += header.ld
+endif

src/soc/ti/am335x/clock.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#ifndef __CPU_TI_AM335X_CLOCK_H__
+#ifndef __SOC_TI_AM335X_CLOCK_H__
-#define __CPU_TI_AM335X_CLOCK_H__
+#define __SOC_TI_AM335X_CLOCK_H__
 
 #include <stdint.h>
 
@@ -219,4 +219,4 @@ struct am335x_cm_cefuse_regs {
 static struct am335x_cm_cefuse_regs * const am335x_cm_cefuse =
 		(void *)0x44e00a00;
 
-#endif	/* __CPU_TI_AM335X_CLOCK_H__ */
+#endif	/* __SOC_TI_AM335X_CLOCK_H__ */

src/soc/ti/am335x/dmtimer.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-#ifndef __CPU_TI_AM335X_DMTIMER_H__
+#ifndef __SOC_TI_AM335X_DMTIMER_H__
-#define __CPU_TI_AM335X_DMTIMER_H__
+#define __SOC_TI_AM335X_DMTIMER_H__
 
 #include <stdint.h>
 

src/soc/ti/am335x/gpio.c

@@ -2,7 +2,7 @@
 
 #include <device/mmio.h>
 #include <console/console.h>
-#include <cpu/ti/am335x/gpio.h>
+#include <soc/ti/am335x/gpio.h>
 #include <stdint.h>
 
 static struct am335x_gpio_regs *gpio_regs_and_bit(unsigned int gpio,

src/soc/ti/am335x/gpio.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#ifndef __CPU_TI_AM335X_GPIO_H__
+#ifndef __SOC_TI_AM335X_GPIO_H__
-#define __CPU_TI_AM335X_GPIO_H__
+#define __SOC_TI_AM335X_GPIO_H__
 
 #include <stdint.h>
 
@@ -55,4 +55,4 @@ int gpio_direction_output(unsigned int gpio, int value);
 int gpio_get_value(unsigned int gpio);
 int gpio_set_value(unsigned int gpio, int value);
 
-#endif	/* __CPU_TI_AM335X_CLOCK_H__ */
+#endif	/* __SOC_TI_AM335X_CLOCK_H__ */

src/soc/ti/am335x/header.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#ifndef __CPU_TI_AM335X_HEADER_H
+#ifndef __SOC_TI_AM335X_HEADER_H
-#define __CPU_TI_AM335X_HEADER_H
+#define __SOC_TI_AM335X_HEADER_H
 
 #include <stdint.h>
 

src/soc/ti/am335x/pinmux.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#ifndef __CPU_TI_AM335X_PINMUX_H
+#ifndef __SOC_TI_AM335X_PINMUX_H
-#define __CPU_TI_AM335X_PINMUX_H
+#define __SOC_TI_AM335X_PINMUX_H
 
 #include <stdint.h>
 

src/soc/ti/am335x/soc.c

@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/device.h>
+
+struct chip_operations soc_ti_am335x_ops = {
+	CHIP_NAME("TI AM335X")
+};

src/soc/ti/am335x/uart.c

@@ -4,7 +4,7 @@
 #include <console/uart.h>
 #include <device/mmio.h>
 #include <boot/coreboot_tables.h>
-#include <cpu/ti/am335x/uart.h>
+#include <soc/ti/am335x/uart.h>
 
 #define EFR_ENHANCED_EN		(1 << 4)
 #define FCR_FIFO_EN		(1 << 0)