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u-boot/arch/arm/mach-kirkwood/include/mach/kw88f6281.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
arm: Kirkwood: Basic SOCs support Kirkwood family controllers are highly integrated SOCs based on Feroceon-88FR131/Sheeva-88SV131/arm926ejs cpu core. SOC versions supported:- 1) 88F6281-A0 define CONFIG_KW88F6281_A0 2) 88F6192-A0 define CONFIG_KW88F6192_A0 Other supported features:- 1) get_random_hex() fucntion 2) PCI Express port initialization 3) NS16550 driver support Contributors: Yotam Admon <yotam@marvell.com> Michael Blostein <michaelbl@marvell.com Reviewed-by: Ronen Shitrit <rshitrit@marvell.com> Acked-by: Stefan Rose <sr@denx.de> Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
2009-06-20 09:01:53 +00:00
/*
* (C) Copyright 2009
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*
* Header file for Feroceon CPU core 88FR131 Based KW88F6281 SOC.
*/
#ifndef _ASM_ARCH_KW88F6281_H
#define _ASM_ARCH_KW88F6281_H
Kirkwood: allow to override CONFIG_SYS_TCLK This patch allow to override CONFIG_SYS_TCLK from board configuration files. This is needed for the Network Space v2 which use a non standard core clock frequency (166MHz instead of 200MHz for a 6281 SoC). As a possible enhancement for 6281 and 6282 devices, TCLK could be dynamically detected by checking the Sample at Reset register bit 21. Additionally this patch fix a typo. Signed-off-by: Simon Guinot <sguinot@lacie.com> Acked-by: Prafulla Wadaskar <Prafulla@marvell.com>
2011-05-03 15:47:34 +00:00
/* SOC specific definitions */
arm: Kirkwood: Basic SOCs support Kirkwood family controllers are highly integrated SOCs based on Feroceon-88FR131/Sheeva-88SV131/arm926ejs cpu core. SOC versions supported:- 1) 88F6281-A0 define CONFIG_KW88F6281_A0 2) 88F6192-A0 define CONFIG_KW88F6192_A0 Other supported features:- 1) get_random_hex() fucntion 2) PCI Express port initialization 3) NS16550 driver support Contributors: Yotam Admon <yotam@marvell.com> Michael Blostein <michaelbl@marvell.com Reviewed-by: Ronen Shitrit <rshitrit@marvell.com> Acked-by: Stefan Rose <sr@denx.de> Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
2009-06-20 09:01:53 +00:00
#define KW88F6281_REGS_PHYS_BASE 0xf1000000
#define KW_REGS_PHY_BASE KW88F6281_REGS_PHYS_BASE
Kirkwood: allow to override CONFIG_SYS_TCLK This patch allow to override CONFIG_SYS_TCLK from board configuration files. This is needed for the Network Space v2 which use a non standard core clock frequency (166MHz instead of 200MHz for a 6281 SoC). As a possible enhancement for 6281 and 6282 devices, TCLK could be dynamically detected by checking the Sample at Reset register bit 21. Additionally this patch fix a typo. Signed-off-by: Simon Guinot <sguinot@lacie.com> Acked-by: Prafulla Wadaskar <Prafulla@marvell.com>
2011-05-03 15:47:34 +00:00
/* TCLK Core Clock definition */
global: Migrate CONFIG_SAR_REG to CFG Perform a simple rename of CONFIG_SAR_REG to CFG_SAR_REG Signed-off-by: Tom Rini <trini@konsulko.com>
2022-12-04 15:13:42 +00:00
#define CFG_SYS_TCLK ((readl(CFG_SAR_REG) & BIT(21)) ? \
arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register Bit 21 in SAR register specifies if TCLK is running at 166 MHz or 200 MHz. This information is undocumented in public Marvell Kirkwood Functional Specifications [2], but is available in Linux v3.15 kirkwood code [1]. Commit 8ac303d49f89 ("arm: kirkwood: Do not overwrite CONFIG_SYS_TCLK") broke support for Marvell 88F6281 SoCs because it was expected that all those SoCs have TCLK running at 200 MHz as specified in Marvell 88F6281 Hardware Specifications [3]. Fix broken support for 88F6281 by detecting CONFIG_SYS_TCLK from SAR register, like it was doing Linux v3.15. [1] - https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/arch/arm/mach-kirkwood/common.c?h=v3.15#n542 [2] - https://web.archive.org/web/20130730091033/http://www.marvell.com/embedded-processors/kirkwood/assets/FS_88F6180_9x_6281_OpenSource.pdf [3] - https://web.archive.org/web/20120620073511/http://www.marvell.com/embedded-processors/kirkwood/assets/HW_88F6281_OpenSource.pdf Update by Stefan 2022-08-23: - Fix compilation error for ds109 Fixes: 8ac303d49f89 ("arm: kirkwood: Do not overwrite CONFIG_SYS_TCLK") Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
2022-08-17 19:37:49 +00:00
166666667 : 200000000)
arm: Kirkwood: Basic SOCs support Kirkwood family controllers are highly integrated SOCs based on Feroceon-88FR131/Sheeva-88SV131/arm926ejs cpu core. SOC versions supported:- 1) 88F6281-A0 define CONFIG_KW88F6281_A0 2) 88F6192-A0 define CONFIG_KW88F6192_A0 Other supported features:- 1) get_random_hex() fucntion 2) PCI Express port initialization 3) NS16550 driver support Contributors: Yotam Admon <yotam@marvell.com> Michael Blostein <michaelbl@marvell.com Reviewed-by: Ronen Shitrit <rshitrit@marvell.com> Acked-by: Stefan Rose <sr@denx.de> Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
2009-06-20 09:01:53 +00:00
#endif /* _ASM_ARCH_KW88F6281_H */
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