Hi Boris,
Thank you very much for the review comments and your time...
On 20/4/2020 4:29 pm, Boris Brezillon wrote:
On Fri, 17 Apr 2020 16:21:47 +0800
"Ramuthevar,Vadivel MuruganX"
<vadivel.muruganx.ramuthevar@xxxxxxxxxxxxxxx> wrote:
+
+ res = devm_platform_ioremap_resource_byname(pdev, lgm_host->cs_name);
+ lgm_host->nandaddr_va = res;
+ nandaddr_pa = res->start;
+ if (IS_ERR(lgm_host->nandaddr_va))
+ return PTR_ERR(lgm_host->nandaddr_va);
Hm, I didn't realize you needed the physical address for DMA transfers.
Just use platform_get_resource_by_name()+devm_ioremap_resource() in
that case.
Yes, you are right, needed the physical address for DMA transfers.
+
+ writel(LGM_BUSCON_CMULT_V4 | LGM_BUSCON_RECOVC(1) |
+ LGM_BUSCON_HOLDC(1) | LGM_BUSCON_WAITRDC(2) |
+ LGM_BUSCON_WAITWRC(2) | LGM_BUSCON_BCGEN_CS | LGM_BUSCON_ALEC |
+ LGM_BUSCON_SETUP_EN, lgm_host->lgm_va + LGM_BUSCON(cs));
I'm sure some the timings you hardcode here can be extracted from the
NAND timings. Can you see if you can implement ->setup_data_interface()
instead.
Yes, I have seen few of the drivers implemented
->setup_data_interface(), Noted.
Regards
Vadivel
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