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Groups > linux.kernel > #1642421
| From | Nikita Yushchenko <nikita.yoush@cogentembedded.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support |
| Date | 2017-05-16 13:20 +0200 |
| Message-ID | <tHIGf-4Ub-17@gated-at.bofh.it> (permalink) |
| References | <tHoo9-lZ-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
> static u32 lpuart32_read(void __iomem *addr)
> {
> - return ioread32be(addr);
> + return lpuart_is_be ? ioread32be(addr) : readl(addr);
> }
>
> static void lpuart32_write(u32 val, void __iomem *addr)
> {
> - iowrite32be(val, addr);
> + if (lpuart_is_be)
> + iowrite32be(val, addr);
> + else
> + writel(val, addr);
> }
What if this is ever executed on big endian system?
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Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Nikita Yushchenko <nikita.yoush@cogentembedded.com> - 2017-05-16 13:20 +0200
Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Dong Aisheng <dongas86@gmail.com> - 2017-05-17 05:40 +0200
Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Nikita Yushchenko <nikita.yoush@cogentembedded.com> - 2017-05-17 07:40 +0200
Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Dong Aisheng <dongas86@gmail.com> - 2017-05-17 07:50 +0200
Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Nikita Yushchenko <nikita.yoush@cogentembedded.com> - 2017-05-17 08:00 +0200
Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Dong Aisheng <dongas86@gmail.com> - 2017-05-17 08:20 +0200
Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-17 12:00 +0200
Re: [V2, 2/6] tty: serial: lpuart: add little endian 32 bit register support Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-17 12:00 +0200
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