sunxi: Introduce a hidden SUNXI_GEN_SUNxI Kconfig bool

sun6i and newer (derived) SoCs such as the sun8i-a23, sun8i-a33 and sun9i
have a various things in common, like having separate ahb reset control
registers, the SID living inside the pmic, custom pmic busses, new style
watchdog, etc.

This commit introduces a new hidden SUNXI_GEN_SUN6I Kconfig bool which can be
used to check for these features avoiding the need for an ever growing list
of "#if defined CONFIG_MACH_SUN?I" conditionals as we add support for more
"new style" sunxi SoCs.

Note that this commit changes the behavior of the gmac and hdmi code for
sun8i and the upcoming sun9i devices. This does not matter as sun8i does
not have gmac nor hdmi, and sun9i has new hardware-blocks for these so
the old code will not work there.

Also this is intentional as if a sun8i / sun9i variant which does use the
old hwblocks shows up then the GEN_SUN6I code paths will be the right ones
to use.

For completeness this also adds a SUNXI_GEN_SUN4I bool for A10/A13/A20.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

2 files changed, 5 insertions, 4 deletions

diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c
index 6471c6b..260b42d 100644
--- a/arch/arm/cpu/armv7/sunxi/board.c
+++ b/arch/arm/cpu/armv7/sunxi/board.c
@@ -173,7 +173,7 @@ void board_init_f(ulong dummy)
 
 void reset_cpu(ulong addr)
 {
-#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN5I) || defined(CONFIG_MACH_SUN7I)
+#ifdef CONFIG_SUNXI_GEN_SUN4I
 	static const struct sunxi_wdog *wdog =
 		 &((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog;
 
@@ -185,7 +185,8 @@ void reset_cpu(ulong addr)
 		/* sun5i sometimes gets stuck without this */
 		writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode);
 	}
-#else /* CONFIG_MACH_SUN6I || CONFIG_MACH_SUN8I || .. */
+#endif
+#ifdef CONFIG_SUNXI_GEN_SUN6I
 	static const struct sunxi_wdog *wdog =
 		 ((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog;
 
diff --git a/arch/arm/cpu/armv7/sunxi/usbc.c b/arch/arm/cpu/armv7/sunxi/usbc.c
index 80e4fc9..7d55e41 100644
--- a/arch/arm/cpu/armv7/sunxi/usbc.c
+++ b/arch/arm/cpu/armv7/sunxi/usbc.c
@@ -218,7 +218,7 @@ void sunxi_usbc_enable(int index)
 
 	setbits_le32(&ccm->usb_clk_cfg, sunxi_usbc->usb_rst_mask);
 	setbits_le32(&ccm->ahb_gate0, sunxi_usbc->ahb_clk_mask);
-#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I
+#ifdef CONFIG_SUNXI_GEN_SUN6I
 	setbits_le32(&ccm->ahb_reset0_cfg, sunxi_usbc->ahb_clk_mask);
 #endif
 
@@ -238,7 +238,7 @@ void sunxi_usbc_disable(int index)
 	if (sunxi_usbc->id != 0)
 		sunxi_usb_passby(sunxi_usbc, !SUNXI_USB_PASSBY_EN);
 
-#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I
+#ifdef CONFIG_SUNXI_GEN_SUN6I
 	clrbits_le32(&ccm->ahb_reset0_cfg, sunxi_usbc->ahb_clk_mask);
 #endif
 	clrbits_le32(&ccm->ahb_gate0, sunxi_usbc->ahb_clk_mask);