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Commit 9851ca57 authored by Daniel Tang's avatar Daniel Tang Committed by Arnd Bergmann
Browse files

arm: Add Initial TI-Nspire support 



This patch adds support for the TI-Nspire platform.

Changes between v1 and v2:
* Added GENERIC_IRQ_CHIP to platform Kconfig

Signed-off-by: default avatarDaniel Tang <dt.tangr@gmail.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent d907849e

arch/arm/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -964,6 +964,8 @@ source "arch/arm/mach-netx/Kconfig" 


source "arch/arm/mach-nomadik/Kconfig"



source "arch/arm/mach-nspire/Kconfig"



source "arch/arm/plat-omap/Kconfig"



source "arch/arm/mach-omap1/Kconfig"

arch/arm/Kconfig.debug

+16 −0
Original line number Diff line number Diff line
@@ -309,6 +309,20 @@ choice 
		  Say Y here if you want kernel low-level debugging support

		  on MVEBU based platforms.



	config DEBUG_NSPIRE_CLASSIC_UART

		bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"

		depends on ARCH_NSPIRE

		help

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

		  on TI-NSPIRE classic models.



	config DEBUG_NSPIRE_CX_UART

		bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"

		depends on ARCH_NSPIRE

		help

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

		  on TI-NSPIRE CX models.



	config DEBUG_NOMADIK_UART

		bool "Kernel low-level debugging messages via NOMADIK UART"

		depends on ARCH_NOMADIK
@@ -633,6 +647,8 @@ config DEBUG_LL_INCLUDE 
				 DEBUG_IMX53_UART ||\

				 DEBUG_IMX6Q_UART

	default "debug/mvebu.S" if DEBUG_MVEBU_UART

	default "debug/nspire.S" if 	DEBUG_NSPIRE_CX_UART || \

					DEBUG_NSPIRE_CLASSIC_UART

	default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART

	default "debug/nomadik.S" if DEBUG_NOMADIK_UART

	default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART

arch/arm/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -164,6 +164,7 @@ machine-$(CONFIG_ARCH_MXS) += mxs 
machine-$(CONFIG_ARCH_MVEBU)		+= mvebu

machine-$(CONFIG_ARCH_NETX)		+= netx

machine-$(CONFIG_ARCH_NOMADIK)		+= nomadik

machine-$(CONFIG_ARCH_NSPIRE)		+= nspire

machine-$(CONFIG_ARCH_OMAP1)		+= omap1

machine-$(CONFIG_ARCH_OMAP2PLUS)	+= omap2

machine-$(CONFIG_ARCH_ORION5X)		+= orion5x

arch/arm/include/debug/nspire.S

0 → 100644
+28 −0
Original line number Diff line number Diff line 
/*

 *	linux/arch/arm/include/debug/nspire.S

 *

 *	Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>

 *

 * 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 NSPIRE_EARLY_UART_PHYS_BASE	   0x90020000

#define NSPIRE_EARLY_UART_VIRT_BASE	   0xfee20000



.macro	addruart, rp, rv, tmp

	ldr \rp, =(NSPIRE_EARLY_UART_PHYS_BASE)		@ physical base address

	ldr \rv, =(NSPIRE_EARLY_UART_VIRT_BASE)		@ virtual base address

.endm





#ifdef CONFIG_DEBUG_NSPIRE_CX_UART

#include <asm/hardware/debug-pl01x.S>

#endif



#ifdef CONFIG_DEBUG_NSPIRE_CLASSIC_UART

#define UART_SHIFT 2

#include <asm/hardware/debug-8250.S>

#endif

arch/arm/mach-nspire/Kconfig

0 → 100644
+16 −0
Original line number Diff line number Diff line 
config ARCH_NSPIRE

	bool "TI-NSPIRE based"

	depends on ARCH_MULTI_V4_V5

	depends on MMU

	select CPU_ARM926T

	select COMMON_CLK

	select GENERIC_CLOCKEVENTS

	select GENERIC_IRQ_CHIP

	select SPARSE_IRQ

	select ARM_AMBA

	select ARM_VIC

	select ARM_TIMER_SP804

	select USE_OF

	select CLKSRC_OF

	help

	  This enables support for systems using the TI-NSPIRE CPU