[U-Boot] [RESEND PATCH v7 1/2] socfpga: Adding System Manager driver

[Chin Liang See <clsee@altera.com>]

Hi Albert,

Would need your help to apply this patch to u-boot-arm/master as this
patch has been a while ago. Thanks and have a nice day!

Chin Liang


On Wed, 2013-09-11 at 11:24 -0500, Chin Liang See wrote:
> Adding System Manager driver which will configure the
> pin mux for real hardware Cyclone V development kit
> (not Virtual Platform)
> 
> Signed-off-by: Chin Liang See <clsee@altera.com>
> Reviewed-by: Pavel Machek <pavel@denx.de>
> Acked-by: Dinh Nguyen <dinguyen@altera.com>
> Cc: Wolfgang Denk <wd@denx.de>
> CC: Pavel Machek <pavel@denx.de>
> Cc: Dinh Nguyen <dinguyen@altera.com>
> Cc: Tom Rini <trini@ti.com>
> Cc: Albert Aribaud <albert.u.boot@aribaud.net>
> ---
> Changes for v7:
> - Re-shuffle the change list
> Changes for v6:
> - Updated the license header for system_manager.c and .h to SPDX
> Changes for v5:
> - Updated the license header for system_manager.c
> - Cc: Tom Rini
> Changes for v4:
> - Added change log for each revision change
> Changes for v3:
> - Fixed the long subject of the patch
> - Fixed the comment within the code
> Changes for v2:
> - Fixed the word wrap issue within patch
> ---
>  arch/arm/cpu/armv7/socfpga/Makefile                |    2 +-
>  arch/arm/cpu/armv7/socfpga/spl.c                   |    6 ++++
>  arch/arm/cpu/armv7/socfpga/system_manager.c        |   29 ++++++++++++++++++++
>  .../include/asm/arch-socfpga/socfpga_base_addrs.h  |    1 +
>  arch/arm/include/asm/arch-socfpga/system_manager.h |   22 +++++++++++++++
>  board/altera/socfpga/Makefile                      |    4 ++-
>  include/configs/socfpga_cyclone5.h                 |    1 +
>  7 files changed, 63 insertions(+), 2 deletions(-)
>  create mode 100644 arch/arm/cpu/armv7/socfpga/system_manager.c
>  create mode 100644 arch/arm/include/asm/arch-socfpga/system_manager.h
> 
> diff --git a/arch/arm/cpu/armv7/socfpga/Makefile b/arch/arm/cpu/armv7/socfpga/Makefile
> index 5024fc5..0859e44 100644
> --- a/arch/arm/cpu/armv7/socfpga/Makefile
> +++ b/arch/arm/cpu/armv7/socfpga/Makefile
> @@ -13,7 +13,7 @@ include $(TOPDIR)/config.mk
>  LIB	=  $(obj)lib$(SOC).o
>  
>  SOBJS	:= lowlevel_init.o
> -COBJS-y	:= misc.o timer.o reset_manager.o
> +COBJS-y	:= misc.o timer.o reset_manager.o system_manager.o
>  COBJS-$(CONFIG_SPL_BUILD) += spl.o
>  
>  COBJS	:= $(COBJS-y)
> diff --git a/arch/arm/cpu/armv7/socfpga/spl.c b/arch/arm/cpu/armv7/socfpga/spl.c
> index 2b9be28..74bceab 100644
> --- a/arch/arm/cpu/armv7/socfpga/spl.c
> +++ b/arch/arm/cpu/armv7/socfpga/spl.c
> @@ -12,6 +12,7 @@
>  #include <image.h>
>  #include <asm/arch/reset_manager.h>
>  #include <spl.h>
> +#include <asm/arch/system_manager.h>
>  
>  DECLARE_GLOBAL_DATA_PTR;
>  
> @@ -25,6 +26,11 @@ u32 spl_boot_device(void)
>   */
>  void spl_board_init(void)
>  {
> +#ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET
> +	/* configure the pin muxing through system manager */
> +	sysmgr_pinmux_init();
> +#endif /* CONFIG_SOCFPGA_VIRTUAL_TARGET */
> +
>  	/* de-assert reset for peripherals and bridges based on handoff */
>  	reset_deassert_peripherals_handoff();
>  
> diff --git a/arch/arm/cpu/armv7/socfpga/system_manager.c b/arch/arm/cpu/armv7/socfpga/system_manager.c
> new file mode 100644
> index 0000000..b992221
> --- /dev/null
> +++ b/arch/arm/cpu/armv7/socfpga/system_manager.c
> @@ -0,0 +1,29 @@
> +/*
> + *  Copyright (C) 2013 Altera Corporation <www.altera.com>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <asm/io.h>
> +#include <asm/arch/system_manager.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +/*
> + * Configure all the pin muxes
> + */
> +void sysmgr_pinmux_init(void)
> +{
> +	unsigned long offset = CONFIG_SYSMGR_PINMUXGRP_OFFSET;
> +
> +	const unsigned long *pval = sys_mgr_init_table;
> +	unsigned long i;
> +
> +	for (i = 0; i < ARRAY_SIZE(sys_mgr_init_table);
> +		i++, offset += sizeof(unsigned long)) {
> +		writel(*pval++, (SOCFPGA_SYSMGR_ADDRESS + offset));
> +	}
> +}
> +
> +
> diff --git a/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h b/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h
> index 1182a13..50c4ebd 100644
> --- a/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h
> +++ b/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h
> @@ -12,5 +12,6 @@
>  #define SOCFPGA_UART1_ADDRESS 0xffc03000
>  #define SOCFPGA_OSC1TIMER0_ADDRESS 0xffd00000
>  #define SOCFPGA_RSTMGR_ADDRESS 0xffd05000
> +#define SOCFPGA_SYSMGR_ADDRESS 0xffd08000
>  
>  #endif /* _SOCFPGA_BASE_ADDRS_H_ */
> diff --git a/arch/arm/include/asm/arch-socfpga/system_manager.h b/arch/arm/include/asm/arch-socfpga/system_manager.h
> new file mode 100644
> index 0000000..d965d25
> --- /dev/null
> +++ b/arch/arm/include/asm/arch-socfpga/system_manager.h
> @@ -0,0 +1,22 @@
> +/*
> + *  Copyright (C) 2013 Altera Corporation <www.altera.com>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#ifndef	_SYSTEM_MANAGER_H_
> +#define	_SYSTEM_MANAGER_H_
> +
> +#ifndef __ASSEMBLY__
> +
> +void sysmgr_pinmux_init(void);
> +
> +/* declaration for handoff table type */
> +extern unsigned long sys_mgr_init_table[CONFIG_HPS_PINMUX_NUM];
> +
> +#endif
> +
> +
> +#define CONFIG_SYSMGR_PINMUXGRP_OFFSET	(0x400)
> +
> +#endif /* _SYSTEM_MANAGER_H_ */
> diff --git a/board/altera/socfpga/Makefile b/board/altera/socfpga/Makefile
> index 43bbc37..3092387 100644
> --- a/board/altera/socfpga/Makefile
> +++ b/board/altera/socfpga/Makefile
> @@ -26,8 +26,10 @@ include $(TOPDIR)/config.mk
>  
>  LIB	= $(obj)lib$(BOARD).o
>  
> -COBJS	:= socfpga_cyclone5.o
> +COBJS-y	:= socfpga_cyclone5.o
> +COBJS-$(CONFIG_SPL_BUILD) += pinmux_config.o
>  
> +COBJS	:= $(COBJS-y)
>  SRCS	:= $(COBJS:.o=.c)
>  OBJS	:= $(addprefix $(obj),$(COBJS))
>  
> diff --git a/include/configs/socfpga_cyclone5.h b/include/configs/socfpga_cyclone5.h
> index 06aeba6..346ca72 100644
> --- a/include/configs/socfpga_cyclone5.h
> +++ b/include/configs/socfpga_cyclone5.h
> @@ -7,6 +7,7 @@
>  #define __CONFIG_H
>  
>  #include <asm/arch/socfpga_base_addrs.h>
> +#include "../../board/altera/socfpga/pinmux_config.h"
>  
>  /*
>   * High level configuration