RE: [PATCH V7 2/3] qe_common: add qe_muram_ functions to manage muram
From: Zhao Qiang
Date: Tue Sep 01 2015 - 22:22:46 EST
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@xxxxxxxxxxxxxxx; linuxppc-dev@xxxxxxxxxxxxxxxx;
> lauraa@xxxxxxxxxxxxxx; Xie Xiaobo-R63061; benh@xxxxxxxxxxxxxxxxxxx; Li
> Yang-Leo-R58472; paulus@xxxxxxxxx
> 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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