Commit 6febbf47 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge tag 'renesas-soc4-for-v3.19' of... 

Merge tag 'renesas-soc4-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

Pull "Fourth Round of Renesas ARM Based SoC Updates for v3.19" from Simon Horman:

* Add early debugging support using SCIF(A)

* tag 'renesas-soc4-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas

:
  ARM: shmobile: Add early debugging support using SCIF(A)

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parents 00f879be 7a2071c5

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -1387,6 +1387,7 @@ F: arch/arm/configs/lager_defconfig 
F:	arch/arm/configs/mackerel_defconfig

F:	arch/arm/configs/marzen_defconfig

F:	arch/arm/configs/shmobile_defconfig

F:	arch/arm/include/debug/renesas-scif.S

F:	arch/arm/mach-shmobile/

F:	drivers/sh/

arch/arm/Kconfig.debug

+79 −1
Original line number Diff line number Diff line
@@ -664,6 +664,64 @@ choice 
		  Say Y here if you want kernel low-level debugging support

		  on Rockchip RK32xx based platforms.



	config DEBUG_R7S72100_SCIF2

		bool "Kernel low-level debugging messages via SCIF2 on R7S72100"

		depends on ARCH_R7S72100

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIF2 on Renesas RZ/A1H (R7S72100).



	config DEBUG_RCAR_GEN1_SCIF0

		bool "Kernel low-level debugging messages via SCIF0 on R8A7778"

		depends on ARCH_R8A7778

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIF0 on Renesas R-Car M1A (R8A7778).



	config DEBUG_RCAR_GEN1_SCIF2

		bool "Kernel low-level debugging messages via SCIF2 on R8A7779"

		depends on ARCH_R8A7779

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIF2 on Renesas R-Car H1 (R8A7779).



	config DEBUG_RCAR_GEN2_SCIF0

		bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"

		depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or

		  M2-N (R8A7793).



	config DEBUG_RCAR_GEN2_SCIF2

		bool "Kernel low-level debugging messages via SCIF2 on R8A7794"

		depends on ARCH_R8A7794

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIF2 on Renesas R-Car E2 (R8A7794).



	config DEBUG_RMOBILE_SCIFA0

		bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"

		depends on ARCH_R8A73A4 || ARCH_SH7372

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile

		  AP4 (SH7372).



	config DEBUG_RMOBILE_SCIFA1

		bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"

		depends on ARCH_R8A7740

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIFA1 on Renesas R-Mobile A1 (R8A7740).



	config DEBUG_RMOBILE_SCIFA4

		bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"

		depends on ARCH_SH73A0

		help

		  Say Y here if you want kernel low-level debugging support

		  via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).



	config DEBUG_S3C_UART0

		depends on PLAT_SAMSUNG

		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
@@ -1105,6 +1163,14 @@ config DEBUG_LL_INCLUDE 
				 DEBUG_IMX6SX_UART

	default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM

	default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART

	default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2

	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0

	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2

	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0

	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2

	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0

	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1

	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4

	default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART

	default "debug/s5pv210.S" if DEBUG_S5PV210_UART

	default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
@@ -1199,6 +1265,12 @@ config DEBUG_UART_PHYS 
	default 0xd4018000 if DEBUG_MMP_UART3

	default 0xe0000000 if ARCH_SPEAR13XX

	default 0xe4007000 if DEBUG_HIP04_UART

	default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0

	default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1

	default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4

	default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2

	default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0

	default 0xe8008000 if DEBUG_R7S72100_SCIF2

	default 0xf0000be0 if ARCH_EBSA110

	default 0xf040ab00 if DEBUG_BRCMSTB_UART

	default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
@@ -1212,13 +1284,19 @@ config DEBUG_UART_PHYS 
	default 0xff690000 if DEBUG_RK32_UART2

	default 0xffc02000 if DEBUG_SOCFPGA_UART

	default 0xffd82340 if ARCH_IOP13XX

	default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0

	default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2

	default 0xfff36000 if DEBUG_HIGHBANK_UART

	default 0xfffe8600 if DEBUG_UART_BCM63XX

	default 0xfffff700 if ARCH_IOP33X

	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \

		DEBUG_LL_UART_EFM32 || \

		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \

		DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \

		DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \

		DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \

		DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \

		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \

		DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \

		DEBUG_UART_BCM63XX



config DEBUG_UART_VIRT

arch/arm/include/debug/renesas-scif.S

0 → 100644
+52 −0
Original line number Diff line number Diff line 
/*

 * Renesas SCIF(A) debugging macro include header

 *

 * Based on r8a7790.S

 *

 * Copyright (C) 2012-2013 Renesas Electronics Corporation

 * Copyright (C) 1994-1999 Russell King

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */



#define SCIF_PHYS	CONFIG_DEBUG_UART_PHYS

#define SCIF_VIRT	((SCIF_PHYS & 0x00ffffff) | 0xfd000000)



#if CONFIG_DEBUG_UART_PHYS < 0xe6e00000

/* SCIFA */

#define FTDR		0x20

#define FSR		0x14

#else

/* SCIF */

#define FTDR		0x0c

#define FSR		0x10

#endif



#define TDFE	(1 << 5)

#define TEND	(1 << 6)



	.macro	addruart, rp, rv, tmp

	ldr	\rp, =SCIF_PHYS

	ldr	\rv, =SCIF_VIRT

	.endm



	.macro	waituart, rd, rx

1001:	ldrh	\rd, [\rx, #FSR]

	tst	\rd, #TDFE

	beq	1001b

	.endm



	.macro	senduart, rd, rx

	strb	\rd, [\rx, #FTDR]

	ldrh	\rd, [\rx, #FSR]

	bic	\rd, \rd, #TEND

	strh	\rd, [\rx, #FSR]

	.endm



	.macro	busyuart, rd, rx

1001:	ldrh	\rd, [\rx, #FSR]

	tst	\rd, #TEND

	beq	1001b

	.endm

arch/arm/mach-shmobile/setup-r8a7740.c

+1 −0
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ static struct map_desc r8a7740_io_desc[] __initdata = { 


void __init r8a7740_map_io(void)

{

	debug_ll_io_init();

	iotable_init(r8a7740_io_desc, ARRAY_SIZE(r8a7740_io_desc));

}

arch/arm/mach-shmobile/setup-r8a7779.c

+1 −0
Original line number Diff line number Diff line
@@ -70,6 +70,7 @@ static struct map_desc r8a7779_io_desc[] __initdata = { 


void __init r8a7779_map_io(void)

{

	debug_ll_io_init();

	iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));

}

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