On Fri, 2014-11-21 at 12:27 +0100, Nicolas Ferre wrote:
> Remove legacy support for at91sam9261/at91sam9g10 boards.
> This include board files removal plus all legacy code for non DT boards
> support.
> Use the Device Tree for running this board with newer kernels.
>
> Signed-off-by: Nicolas Ferre <[email protected]>
> ---
There's some further cleanup possible after this patch. I noticed that
when it landed in today's linux-next (ie, next-20141201) as commit
2e591e7b3ac2 ("ARM: at91: remove at91sam9261/at91sam9g10 legacy board
support").
> arch/arm/configs/at91sam9261_9g10_defconfig | 147 ----
> arch/arm/mach-at91/Kconfig.non_dt | 34 -
> arch/arm/mach-at91/Makefile | 5 -
> arch/arm/mach-at91/at91sam9261.c | 375 ---------
> arch/arm/mach-at91/at91sam9261_devices.c | 1098
> ---------------------------
> arch/arm/mach-at91/board-sam9261ek.c | 623 ---------------
> 6 files changed, 2282 deletions(-)
> delete mode 100644 arch/arm/configs/at91sam9261_9g10_defconfig
> delete mode 100644 arch/arm/mach-at91/at91sam9261_devices.c
> delete mode 100644 arch/arm/mach-at91/board-sam9261ek.c
>
>[...]
> diff --git a/arch/arm/mach-at91/at91sam9261_devices.c
> b/arch/arm/mach-at91/at91sam9261_devices.c
> deleted file mode 100644
> index 29baacb5c359..000000000000
> --- a/arch/arm/mach-at91/at91sam9261_devices.c
> +++ /dev/null
>[...]
> -/* --------------------------------------------------------------------
> - * RTT
> - * -------------------------------------------------------------------- */
> -
> -static struct resource rtt_resources[] = {
> - {
> - .start = AT91SAM9261_BASE_RTT,
> - .end = AT91SAM9261_BASE_RTT + SZ_16 - 1,
> - .flags = IORESOURCE_MEM,
> - }, {
> - .flags = IORESOURCE_MEM,
> - }, {
> - .flags = IORESOURCE_IRQ,
> - }
> -};
> -
> -static struct platform_device at91sam9261_rtt_device = {
> - .name = "at91_rtt",
> - .id = 0,
> - .resource = rtt_resources,
> -};
> -
> -#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
> -static void __init at91_add_device_rtt_rtc(void)
> -{
> - at91sam9261_rtt_device.name = "rtc-at91sam9";
> - /*
> - * The second resource is needed:
> - * GPBR will serve as the storage for RTC time offset
> - */
> - at91sam9261_rtt_device.num_resources = 3;
> - rtt_resources[1].start = AT91SAM9261_BASE_GPBR +
> - 4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
This was the only place where the Kconfig symbol RTC_DRV_AT91SAM9_GPBR
was used. That again matches its help text:
This option is only relevant for legacy board support and
won't be used when booting a DT board.
> - rtt_resources[1].end = rtt_resources[1].start + 3;
> - rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
> - rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
> -}
> -#else
> -static void __init at91_add_device_rtt_rtc(void)
> -{
> - /* Only one resource is needed: RTT not used as RTC */
> - at91sam9261_rtt_device.num_resources = 1;
> -}
> -#endif
> -
> -static void __init at91_add_device_rtt(void)
> -{
> - at91_add_device_rtt_rtc();
> - platform_device_register(&at91sam9261_rtt_device);
> -}
Is a patch to also remove that symbol from drivers/rtc/Kconfig queued
somewhere?
Paul Bolle
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