Merge tag 'at91-5.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/soc

AT91 SoC for 5.5

 - Document new SoC: sam9x60
 - rework sam9x60 Kconfig option

* tag 'at91-5.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: at91: Documentation: add sam9x60 product and datasheet
  ARM: at91: pm: use of_device_id array to find the proper shdwc node
  ARM: at91: pm: use SAM9X60 PMC's compatible
  ARM: debug-ll: select DEBUG_AT91_RM9200_DBGU for sam9x60
  drivers: soc: atmel: select POWER_RESET_AT91_SAMA5D2_SHDWC for sam9x60
  power: reset: Kconfig: select POWER_RESET_AT91_RESET for sam9x60
  drivers: soc: atmel: move sam9x60 under its own config flag
  ARM: at91: pm: move SAM9X60's PM under its own SoC config flag
  ARM: at91: Kconfig: add config flag for SAM9X60 SoC
  ARM: at91: Kconfig: add sam9x60 pll config flag

Link: https://lore.kernel.org/r/20200113161612.GA1358903@piout.netSigned-off-by: Olof Johansson <olof@lixom.net>

Documentation/arm/microchip.rst

@@ -92,6 +92,12 @@ the Microchip website: http://www.microchip.com.
 
           http://ww1.microchip.com/downloads/en/DeviceDoc/DS60001517A.pdf
 
+      - sam9x60
+
+          * Datasheet
+
+          http://ww1.microchip.com/downloads/en/DeviceDoc/SAM9X60-Data-Sheet-DS60001579A.pdf
+
     * ARM Cortex-A5 based SoCs
       - sama5d3 family
 

arch/arm/Kconfig.debug

@@ -147,14 +147,14 @@ choice
 		    0x80024000      | 0xf0024000     | UART9
 
 	config DEBUG_AT91_RM9200_DBGU
-		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
+		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
 		select DEBUG_AT91_UART
-		depends on SOC_AT91RM9200 || SOC_AT91SAM9
+		depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
 		help
 		  Say Y here if you want kernel low-level debugging support
 		  on the DBGU port of:
 		    at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
-		    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
+		    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
 
 	config DEBUG_AT91_SAM9263_DBGU
 		bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"

arch/arm/mach-at91/Kconfig

@@ -105,11 +105,28 @@ config SOC_AT91SAM9
 	    AT91SAM9X35
 	    AT91SAM9XE
 
+config SOC_SAM9X60
+	bool "SAM9X60"
+	depends on ARCH_MULTI_V5
+	select ATMEL_AIC5_IRQ
+	select ATMEL_PM if PM
+	select ATMEL_SDRAMC
+	select CPU_ARM926T
+	select HAVE_AT91_USB_CLK
+	select HAVE_AT91_GENERATED_CLK
+	select HAVE_AT91_SAM9X60_PLL
+	select MEMORY
+	select PINCTRL_AT91
+	select SOC_SAM_V4_V5
+	select SRAM if PM
+	help
+	  Select this if you are using Microchip's SAM9X60 SoC
+
 comment "Clocksource driver selection"
 
 config ATMEL_CLOCKSOURCE_PIT
 	bool "Periodic Interval Timer (PIT) support"
-	depends on SOC_AT91SAM9 || SOC_SAMA5
+	depends on SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5
 	default SOC_AT91SAM9 || SOC_SAMA5
 	select ATMEL_PIT
 	help
@@ -119,7 +136,7 @@ config ATMEL_CLOCKSOURCE_PIT
 
 config ATMEL_CLOCKSOURCE_TCB
 	bool "Timer Counter Blocks (TCB) support"
-	default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5
+	default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5
 	select ATMEL_TCB_CLKSRC
 	help
 	  Select this to get a high precision clocksource based on a
@@ -154,6 +171,9 @@ config HAVE_AT91_AUDIO_PLL
 config HAVE_AT91_I2S_MUX_CLK
 	bool
 
+config HAVE_AT91_SAM9X60_PLL
+	bool
+
 config SOC_SAM_V4_V5
 	bool
 

arch/arm/mach-at91/Makefile

@@ -6,6 +6,7 @@
 # CPU-specific support
 obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200.o
 obj-$(CONFIG_SOC_AT91SAM9)	+= at91sam9.o
+obj-$(CONFIG_SOC_SAM9X60)	+= sam9x60.o
 obj-$(CONFIG_SOC_SAMA5)		+= sama5.o
 obj-$(CONFIG_SOC_SAMV7)		+= samv7.o
 

arch/arm/mach-at91/at91sam9.c

@@ -31,21 +31,3 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM9")
 	.init_machine	= at91sam9_init,
 	.dt_compat	= at91_dt_board_compat,
 MACHINE_END
-
-static void __init sam9x60_init(void)
-{
-	of_platform_default_populate(NULL, NULL, NULL);
-
-	sam9x60_pm_init();
-}
-
-static const char *const sam9x60_dt_board_compat[] __initconst = {
-	"microchip,sam9x60",
-	NULL
-};
-
-DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60")
-	/* Maintainer: Microchip */
-	.init_machine	= sam9x60_init,
-	.dt_compat	= sam9x60_dt_board_compat,
-MACHINE_END

arch/arm/mach-at91/pm.c

@@ -691,6 +691,12 @@ static void __init at91_pm_use_default_mode(int pm_mode)
 		soc_pm.data.suspend_mode = AT91_PM_ULP0;
 }
 
+static const struct of_device_id atmel_shdwc_ids[] = {
+	{ .compatible = "atmel,sama5d2-shdwc" },
+	{ .compatible = "microchip,sam9x60-shdwc" },
+	{ /* sentinel. */ }
+};
+
 static void __init at91_pm_modes_init(void)
 {
 	struct device_node *np;
@@ -700,7 +706,7 @@ static void __init at91_pm_modes_init(void)
 	    !at91_is_pm_mode_active(AT91_PM_ULP1))
 		return;
 
-	np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-shdwc");
+	np = of_find_matching_node(NULL, atmel_shdwc_ids);
 	if (!np) {
 		pr_warn("%s: failed to find shdwc!\n", __func__);
 		goto ulp1_default;
@@ -751,6 +757,7 @@ static const struct of_device_id atmel_pmc_ids[] __initconst = {
 	{ .compatible = "atmel,sama5d3-pmc", .data = &pmc_infos[1] },
 	{ .compatible = "atmel,sama5d4-pmc", .data = &pmc_infos[1] },
 	{ .compatible = "atmel,sama5d2-pmc", .data = &pmc_infos[1] },
+	{ .compatible = "microchip,sam9x60-pmc", .data = &pmc_infos[1] },
 	{ /* sentinel */ },
 };
 
@@ -805,7 +812,7 @@ void __init at91rm9200_pm_init(void)
 
 void __init sam9x60_pm_init(void)
 {
-	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
+	if (!IS_ENABLED(CONFIG_SOC_SAM9X60))
 		return;
 
 	at91_pm_modes_init();

arch/arm/mach-at91/sam9x60.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Setup code for SAM9X60.
+ *
+ * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Claudiu Beznea <claudiu.beznea@microchip.com>
+ */
+
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/system_misc.h>
+
+#include "generic.h"
+
+static void __init sam9x60_init(void)
+{
+	of_platform_default_populate(NULL, NULL, NULL);
+
+	sam9x60_pm_init();
+}
+
+static const char *const sam9x60_dt_board_compat[] __initconst = {
+	"microchip,sam9x60",
+	NULL
+};
+
+DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60")
+	/* Maintainer: Microchip */
+	.init_machine	= sam9x60_init,
+	.dt_compat	= sam9x60_dt_board_compat,
+MACHINE_END

drivers/power/reset/Kconfig

@@ -26,7 +26,7 @@ config POWER_RESET_AT91_POWEROFF
 config POWER_RESET_AT91_RESET
 	tristate "Atmel AT91 reset driver"
 	depends on ARCH_AT91
-	default SOC_AT91SAM9 || SOC_SAMA5
+	default SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5
 	help
 	  This driver supports restart for Atmel AT91SAM9 and SAMA5
 	  SoCs
@@ -34,7 +34,7 @@ config POWER_RESET_AT91_RESET
 config POWER_RESET_AT91_SAMA5D2_SHDWC
 	tristate "Atmel AT91 SAMA5D2-Compatible shutdown controller driver"
 	depends on ARCH_AT91
-	default SOC_SAMA5
+	default SOC_SAM9X60 || SOC_SAMA5
 	help
 	  This driver supports the alternate shutdown controller for some Atmel
 	  SAMA5 SoCs. It is present for example on SAMA5D2 SoC.

drivers/soc/atmel/soc.c

@@ -66,8 +66,9 @@ static const struct at91_soc __initconst socs[] = {
 	AT91_SOC(AT91SAM9XE128_CIDR_MATCH, 0, "at91sam9xe128", "at91sam9xe128"),
 	AT91_SOC(AT91SAM9XE256_CIDR_MATCH, 0, "at91sam9xe256", "at91sam9xe256"),
 	AT91_SOC(AT91SAM9XE512_CIDR_MATCH, 0, "at91sam9xe512", "at91sam9xe512"),
-	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH,
-		 "sam9x60", "sam9x60"),
+#endif
+#ifdef CONFIG_SOC_SAM9X60
+	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH, "sam9x60", "sam9x60"),
 #endif
 #ifdef CONFIG_SOC_SAMA5
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D21CU_EXID_MATCH,