linux-kernel - Re: [PATCH v2 1/3] ARM: DRA7: hwmod: Add reset data for PCIe

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Message-ID: <20160113171328.GG12777@atomide.com>
Date:	Wed, 13 Jan 2016 09:13:28 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Kishon Vijay Abraham I <kishon@...com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>, richardcochran@...il.com,
	Russell King <linux@....linux.org.uk>,
	Suman Anna <s-anna@...com>, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	nsekhar@...com, Paul Walmsley <paul@...an.com>,
	Tero Kristo <t-kristo@...com>
Subject: Re: [PATCH v2 1/3] ARM: DRA7: hwmod: Add reset data for PCIe

* Kishon Vijay Abraham I <kishon@...com> [160112 22:48]:
> Add PCIe reset data to PCIe hwmods on DRA7x.

Adding Paul and Tero to Cc. I don't see other solution to get
the PCI driver working until the reset driver is available.

Regards,

Tony



> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> Signed-off-by: Sekhar Nori <nsekhar@...com>
> ---
>  arch/arm/mach-omap2/omap_hwmod_7xx_data.c |   15 +++++++++++++++
>  arch/arm/mach-omap2/prm7xx.h              |    1 +
>  2 files changed, 16 insertions(+)
> 
> diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> index ee4e044..1281deb 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> @@ -1532,14 +1532,21 @@ static struct omap_hwmod_class dra7xx_pciess_hwmod_class = {
>  };
>  
>  /* pcie1 */
> +static struct omap_hwmod_rst_info dra7xx_pciess1_resets[] = {
> +	{ .name = "pcie", .rst_shift = 0 },
> +};
> +
>  static struct omap_hwmod dra7xx_pciess1_hwmod = {
>  	.name		= "pcie1",
>  	.class		= &dra7xx_pciess_hwmod_class,
>  	.clkdm_name	= "pcie_clkdm",
> +	.rst_lines	= dra7xx_pciess1_resets,
> +	.rst_lines_cnt	= ARRAY_SIZE(dra7xx_pciess1_resets),
>  	.main_clk	= "l4_root_clk_div",
>  	.prcm = {
>  		.omap4 = {
>  			.clkctrl_offs = DRA7XX_CM_L3INIT_PCIESS1_CLKCTRL_OFFSET,
> +			.rstctrl_offs = DRA7XX_RM_L3INIT_PCIESS_RSTCTRL_OFFSET,
>  			.context_offs = DRA7XX_RM_L3INIT_PCIESS1_CONTEXT_OFFSET,
>  			.modulemode   = MODULEMODE_SWCTRL,
>  		},
> @@ -1547,14 +1554,22 @@ static struct omap_hwmod dra7xx_pciess1_hwmod = {
>  };
>  
>  /* pcie2 */
> +static struct omap_hwmod_rst_info dra7xx_pciess2_resets[] = {
> +	{ .name = "pcie", .rst_shift = 1 },
> +};
> +
> +/* pcie2 */
>  static struct omap_hwmod dra7xx_pciess2_hwmod = {
>  	.name		= "pcie2",
>  	.class		= &dra7xx_pciess_hwmod_class,
>  	.clkdm_name	= "pcie_clkdm",
> +	.rst_lines	= dra7xx_pciess2_resets,
> +	.rst_lines_cnt	= ARRAY_SIZE(dra7xx_pciess2_resets),
>  	.main_clk	= "l4_root_clk_div",
>  	.prcm = {
>  		.omap4 = {
>  			.clkctrl_offs = DRA7XX_CM_L3INIT_PCIESS2_CLKCTRL_OFFSET,
> +			.rstctrl_offs = DRA7XX_RM_L3INIT_PCIESS_RSTCTRL_OFFSET,
>  			.context_offs = DRA7XX_RM_L3INIT_PCIESS2_CONTEXT_OFFSET,
>  			.modulemode   = MODULEMODE_SWCTRL,
>  		},
> diff --git a/arch/arm/mach-omap2/prm7xx.h b/arch/arm/mach-omap2/prm7xx.h
> index cc1e6a2..294deed 100644
> --- a/arch/arm/mach-omap2/prm7xx.h
> +++ b/arch/arm/mach-omap2/prm7xx.h
> @@ -360,6 +360,7 @@
>  /* PRM.L3INIT_PRM register offsets */
>  #define DRA7XX_PM_L3INIT_PWRSTCTRL_OFFSET			0x0000
>  #define DRA7XX_PM_L3INIT_PWRSTST_OFFSET				0x0004
> +#define DRA7XX_RM_L3INIT_PCIESS_RSTCTRL_OFFSET			0x0010
>  #define DRA7XX_PM_L3INIT_MMC1_WKDEP_OFFSET			0x0028
>  #define DRA7XX_RM_L3INIT_MMC1_CONTEXT_OFFSET			0x002c
>  #define DRA7XX_PM_L3INIT_MMC2_WKDEP_OFFSET			0x0030
> -- 
> 1.7.9.5
>