MIPS: ath79: add SoC detection code for AR934X

Also add 'soc_is_ar934[124x]' helper functions and a Kconfig
symbol for the AR934X SoCs.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3506/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 25 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
index b7df67494795..4e3c55d4b078 100644
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
@@ -271,6 +271,8 @@
 
 #define AR724X_REV_ID_REVISION_MASK     0x3
 
+#define AR934X_REV_ID_REVISION_MASK     0xf
+
 /*
  * SPI block
  */
diff --git a/arch/mips/include/asm/mach-ath79/ath79.h b/arch/mips/include/asm/mach-ath79/ath79.h
index 6d0c6c9d5622..4f248c3d7b23 100644
--- a/arch/mips/include/asm/mach-ath79/ath79.h
+++ b/arch/mips/include/asm/mach-ath79/ath79.h
@@ -29,6 +29,9 @@ enum ath79_soc_type {
         ATH79_SOC_AR9132,
         ATH79_SOC_AR9330,
         ATH79_SOC_AR9331,
+        ATH79_SOC_AR9341,
+        ATH79_SOC_AR9342,
+        ATH79_SOC_AR9344,
 };
 
 extern enum ath79_soc_type ath79_soc;
@@ -75,6 +78,26 @@ static inline int soc_is_ar933x(void)
                 ath79_soc == ATH79_SOC_AR9331);
 }
 
+static inline int soc_is_ar9341(void)
+{
+        return (ath79_soc == ATH79_SOC_AR9341);
+}
+
+static inline int soc_is_ar9342(void)
+{
+        return (ath79_soc == ATH79_SOC_AR9342);
+}
+
+static inline int soc_is_ar9344(void)
+{
+        return (ath79_soc == ATH79_SOC_AR9344);
+}
+
+static inline int soc_is_ar934x(void)
+{
+        return soc_is_ar9341() || soc_is_ar9342() || soc_is_ar9344();
+}
+
 extern void __iomem *ath79_ddr_base;
 extern void __iomem *ath79_pll_base;
 extern void __iomem *ath79_reset_base;