Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi Alexey. On 2 March 2018 at 14:51, Alexey Brodkin wrote: > > Hi Simon, > > On Thu, 2018-02-22 at 10:29 -0700, Simon Glass wrote: > > Hi Alexey, > > > > On 22 February 2018 at 09:23, Alexey Brodkin > > wrote: > > > Hi Simon, > > > > > >

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi Simon, On Thu, 2018-02-22 at 10:29 -0700, Simon Glass wrote: > Hi Alexey, > > On 22 February 2018 at 09:23, Alexey Brodkin > wrote: > > Hi Simon, > > > > On Thu, 2018-02-22 at 09:17 -0700, Simon Glass wrote: [snip] > > > I think a separate driver might be

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi Alexey, On 23 February 2018 at 11:08, Alexey Brodkin wrote: > Hi Simon, > > On Thu, 2018-02-22 at 10:29 -0700, Simon Glass wrote: >> Hi Alexey, >> >> On 22 February 2018 at 09:23, Alexey Brodkin >> wrote: >> > Hi Simon, >> > >> > On

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi Simon, On Thu, 2018-02-22 at 10:29 -0700, Simon Glass wrote: > Hi Alexey, > > On 22 February 2018 at 09:23, Alexey Brodkin > wrote: > > Hi Simon, > > > > On Thu, 2018-02-22 at 09:17 -0700, Simon Glass wrote: > > > Hi, > > > > > > On 21 February 2018 at 05:26,

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi Alexey, On 22 February 2018 at 09:23, Alexey Brodkin wrote: > Hi Simon, > > On Thu, 2018-02-22 at 09:17 -0700, Simon Glass wrote: >> Hi, >> >> On 21 February 2018 at 05:26, Alexey Brodkin >> wrote: >> > Synopsys Data Fusion subsystem

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi Simon, On Thu, 2018-02-22 at 09:17 -0700, Simon Glass wrote: > Hi, > > On 21 February 2018 at 05:26, Alexey Brodkin > wrote: > > Synopsys Data Fusion subsystem (DFSS) is targeted to deeply built-in > > use-cases and so to save some silicon area decision was made

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

On Thu, Feb 22, 2018 at 04:07:39PM +, Alexey Brodkin wrote: > Hi Tom, > > On Thu, 2018-02-22 at 10:43 -0500, Tom Rini wrote: > > On Wed, Feb 21, 2018 at 03:26:05PM +0300, Alexey Brodkin wrote: > > [snip] > > > > static inline void serial_out_shift(void *addr, int shift, int value) > > > {

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi, On 21 February 2018 at 05:26, Alexey Brodkin wrote: > Synopsys Data Fusion subsystem (DFSS) is targeted to deeply built-in > use-cases and so to save some silicon area decision was made to > escape usage of any busses and use instead directly wired to CPU >

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Hi Tom, On Thu, 2018-02-22 at 10:43 -0500, Tom Rini wrote: > On Wed, Feb 21, 2018 at 03:26:05PM +0300, Alexey Brodkin wrote: [snip] > > static inline void serial_out_shift(void *addr, int shift, int value) > > { > > -#ifdef CONFIG_SYS_NS16550_PORT_MAPPED > > +#ifdef CONFIG_ARCH_DFSS > > +

Re: [U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

On Wed, Feb 21, 2018 at 03:26:05PM +0300, Alexey Brodkin wrote: > Synopsys Data Fusion subsystem (DFSS) is targeted to deeply built-in > use-cases and so to save some silicon area decision was made to > escape usage of any busses and use instead directly wired to CPU > peripherals. And one of

[U-Boot] [RFC] ns16550: Add support for AUX regs usage on some ARC SoCs

Synopsys Data Fusion subsystem (DFSS) is targeted to deeply built-in use-cases and so to save some silicon area decision was made to escape usage of any busses and use instead directly wired to CPU peripherals. And one of those is DW APB UART. Later DFSS became a part of larger and more