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Commit 01ea63d9 authored by Guo Zeng's avatar Guo Zeng Committed by Barry Song
Browse files

ARM: sirf: add two debug ports for CSRatlas7 SoC 



this patch adds UART0 and UART1 as LLUART port, as the new Atlas7
registers layout are different, it also refines some names of old
hard-coded MARCOs and uses CONFIG_DEBUG_UART_PHYS/DEBUG_UART_VIRT
to define different base addresses for multiple ports.

Signed-off-by: default avatarGuo Zeng <Guo.Zeng@csr.com>
Signed-off-by: default avatarZhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: default avatarBarry Song <Baohua.Song@csr.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 07dde66c

arch/arm/Kconfig.debug

+33 −3
Original line number Diff line number Diff line
@@ -916,10 +916,29 @@ choice 
	config DEBUG_SIRFPRIMA2_UART1

		bool "Kernel low-level debugging messages via SiRFprimaII UART1"

		depends on ARCH_PRIMA2

		select DEBUG_SIRFSOC_UART

		help

		  Say Y here if you want the debug print routines to direct

		  their output to the uart1 port on SiRFprimaII devices.



	config DEBUG_SIRFATLAS7_UART0

		bool "Kernel low-level debugging messages via SiRFatlas7 UART0"

		depends on ARCH_ATLAS7

		select DEBUG_SIRFSOC_UART

		help

		  Say Y here if you want the debug print routines to direct

		  their output to the uart0 port on SiRFATLAS7 devices.The uart0

		  is used on SiRFATLAS7 as a extra debug port.sometimes an extra

		  debug port can be very useful.



	config DEBUG_SIRFATLAS7_UART1

		bool "Kernel low-level debugging messages via SiRFatlas7 UART1"

		depends on ARCH_ATLAS7

		select DEBUG_SIRFSOC_UART

		help

		  Say Y here if you want the debug print routines to direct

		  their output to the uart1 port on SiRFATLAS7 devices.



	config STIH41X_DEBUG_ASC2

		bool "Use StiH415/416 ASC2 UART for low-level debug"

		depends on ARCH_STI
@@ -1154,6 +1173,10 @@ config DEBUG_STI_UART 
	bool

	depends on ARCH_STI



config DEBUG_SIRFSOC_UART

	bool

	depends on ARCH_SIRF



config DEBUG_LL_INCLUDE

	string

	default "debug/sa1100.S" if DEBUG_SA1100
@@ -1188,7 +1211,7 @@ config DEBUG_LL_INCLUDE 
	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

	default "debug/sirf.S" if DEBUG_SIRFSOC_UART

	default "debug/sti.S" if DEBUG_STI_UART

	default "debug/tegra.S" if DEBUG_TEGRA_UART

	default "debug/ux500.S" if DEBUG_UX500_UART
@@ -1244,6 +1267,8 @@ config DEBUG_UART_PHYS 
	default 0x11009000 if DEBUG_MT8135_UART3

	default 0x16000000 if ARCH_INTEGRATOR

	default 0x18000300 if DEBUG_BCM_5301X

	default 0x18010000 if DEBUG_SIRFATLAS7_UART0

	default 0x18020000 if DEBUG_SIRFATLAS7_UART1

	default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1

	default 0x20060000 if DEBUG_RK29_UART0

	default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
@@ -1270,6 +1295,7 @@ config DEBUG_UART_PHYS 
	default 0x808c0000 if ARCH_EP93XX

	default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART

	default 0xa9a00000 if DEBUG_MSM_UART

	default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1

	default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX

	default 0xc0013000 if DEBUG_U300_UART

	default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
@@ -1313,7 +1339,8 @@ config DEBUG_UART_PHYS 
		DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \

		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \

		DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \

		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART

		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \

		DEBUG_SIRFSOC_UART



config DEBUG_UART_VIRT

	hex "Virtual base address of debug UART"
@@ -1370,8 +1397,11 @@ config DEBUG_UART_VIRT 
	default 0xfeb30c00 if DEBUG_KEYSTONE_UART0

	default 0xfeb31000 if DEBUG_KEYSTONE_UART1

	default 0xfec02000 if DEBUG_SOCFPGA_UART

	default 0xfec10000 if DEBUG_SIRFATLAS7_UART0

	default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE

	default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0

	default 0xfec20000 if DEBUG_SIRFATLAS7_UART1

	default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1

	default 0xfec90000 if DEBUG_RK32_UART2

	default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1

	default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
@@ -1391,7 +1421,7 @@ config DEBUG_UART_VIRT 
	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \

		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \

		DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \

		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART

		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || DEBUG_SIRFSOC_UART



config DEBUG_UART_8250_SHIFT

	int "Register offset shift for the 8250 debug UART"

arch/arm/include/debug/sirf.S

+13 −15
Original line number Diff line number Diff line
@@ -6,35 +6,33 @@ 
 * Licensed under GPLv2 or later.

 */



#if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1)

#define SIRFSOC_UART1_PA_BASE          0xb0060000

#else

#define SIRFSOC_UART1_PA_BASE          0

#endif

#define SIRF_LLUART_TXFIFO_STATUS	0x0114

#define SIRF_LLUART_TXFIFO_DATA	0x0118



#define SIRFSOC_UART1_VA_BASE		0xFEC60000

#define SIRF_LLUART_TXFIFO_FULL                       (1 << 5)



#define SIRFSOC_UART_TXFIFO_STATUS	0x0114

#define SIRFSOC_UART_TXFIFO_DATA	0x0118

#ifdef CONFIG_DEBUG_SIRFATLAS7_UART0

#define SIRF_LLUART_TXFIFO_EMPTY			(1 << 8)

#else

#define SIRF_LLUART_TXFIFO_EMPTY			(1 << 6)

#endif



#define SIRFSOC_UART1_TXFIFO_FULL                       (1 << 5)

#define SIRFSOC_UART1_TXFIFO_EMPTY			(1 << 6)



	.macro	addruart, rp, rv, tmp

	ldr	\rp, =SIRFSOC_UART1_PA_BASE		@ physical

	ldr	\rv, =SIRFSOC_UART1_VA_BASE		@ virtual

	ldr	\rp, =CONFIG_DEBUG_UART_PHYS		@ physical

	ldr	\rv, =CONFIG_DEBUG_UART_VIRT		@ virtual

	.endm



	.macro	senduart,rd,rx

	str	\rd, [\rx, #SIRFSOC_UART_TXFIFO_DATA]

	str	\rd, [\rx, #SIRF_LLUART_TXFIFO_DATA]

	.endm



	.macro	busyuart,rd,rx

	.endm



	.macro	waituart,rd,rx

1001:	ldr	\rd, [\rx, #SIRFSOC_UART_TXFIFO_STATUS]

	tst	\rd, #SIRFSOC_UART1_TXFIFO_EMPTY

1001:	ldr	\rd, [\rx, #SIRF_LLUART_TXFIFO_STATUS]

	tst	\rd, #SIRF_LLUART_TXFIFO_EMPTY

	beq	1001b

	.endm