[PATCH V7 2/3] qe_common: add qe_muram_ functions to manage muram

Zhao Qiang qiang.zhao at freescale.com
Wed Sep 2 12:22:38 AEST 2015


On Wed, 2015-09-02 at 8:34AM +0800, Wood Scott-B07421 wrote:
> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Wednesday, September 02, 2015 8:34 AM
> To: Zhao Qiang-B45475
> Cc: linux-kernel at vger.kernel.org; linuxppc-dev at lists.ozlabs.org;
> lauraa at codeaurora.org; Xie Xiaobo-R63061; benh at kernel.crashing.org; Li
> Yang-Leo-R58472; paulus at samba.org
> Subject: Re: [PATCH V7 2/3] qe_common: add qe_muram_ functions to manage
> muram
> 
> On Mon, 2015-08-31 at 16:58 +0800, Zhao Qiang wrote:
> 
> > -int cpm_muram_init(void)
> > -{
> > -     struct device_node *np;
> > -     struct resource r;
> > -     u32 zero[OF_MAX_ADDR_CELLS] = {};
> > -     resource_size_t max = 0;
> > -     int i = 0;
> > -     int ret = 0;
> > -
> > -     if (muram_pbase)
> > -             return 0;
> > -
> > -     spin_lock_init(&cpm_muram_lock);
> > -     /* initialize the info header */
> > -     rh_init(&cpm_muram_info, 1,
> > -             sizeof(cpm_boot_muram_rh_block) /
> > -             sizeof(cpm_boot_muram_rh_block[0]),
> > -             cpm_boot_muram_rh_block);
> > -
> > -     np = of_find_compatible_node(NULL, NULL, "fsl,cpm-muram-data");
> > -     if (!np) {
> > -             /* try legacy bindings */
> > -             np = of_find_node_by_name(NULL, "data-only");
> > -             if (!np) {
> > -                     printk(KERN_ERR "Cannot find CPM muram data
> node");
> > -                     ret = -ENODEV;
> > -                     goto out;
> > -             }
> > -     }
> > -
> > -     muram_pbase = of_translate_address(np, zero);
> > -     if (muram_pbase == (phys_addr_t)OF_BAD_ADDR) {
> > -             printk(KERN_ERR "Cannot translate zero through CPM muram
> node");
> > -             ret = -ENODEV;
> > -             goto out;
> > -     }
> 
> Did you pass -M -C to git format-patch?


Yes!

> 
> -Scott
-Zhao


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