ar71xx: add definitions for RouterBOARD hardware option bits

Add bit definitions for the 'hardware options' tag which is used in
the MikroTik devices' hardware configurations. These values can be
used in board setup codes, to do different initialization sequences.
The values were obtained from the RouterOS 6.41-rc38 patches.

Additionally, introduce two helper functions what make the processing
of the hardware options easy.

Signed-off-by: Gabor Juhos <juhosg@freemail.hu>

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
index c1d7fb9ee08120d681ac66055ff913c5bfd5056a..cf189362d6ef8b1fd2bf8ef755d5543d608c9790 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
@@ -21,6 +21,32 @@ struct rb_info {
        u32 hw_options;
 };
 
+/* Bit definitions for hardware options */
+#define RB_HW_OPT_UART_ABSENT          BIT(0)
+#define RB_HW_OPT_HAS_VOLTAGE          BIT(1)
+#define RB_HW_OPT_HAS_USB              BIT(2)
+#define RB_HW_OPT_HAS_ATTINY           BIT(3)
+#define RB_HW_OPT_NO_NAND              BIT(14)
+#define RB_HW_OPT_HAS_LCD              BIT(15)
+#define RB_HW_OPT_HAS_POE_OUT          BIT(16)
+#define RB_HW_OPT_HAS_uSD              BIT(17)
+#define RB_HW_OPT_HAS_SFP              BIT(20)
+#define RB_HW_OPT_HAS_WIFI             BIT(21)
+#define RB_HW_OPT_HAS_TS_FOR_ADC       BIT(22)
+#define RB_HW_OPT_HAS_PLC              BIT(29)
+
+static inline bool
+rb_hw_option_match(const struct rb_info *info, u32 mask, u32 val)
+{
+       return (info->hw_options & (val | mask)) == val;
+}
+
+static inline bool
+rb_has_hw_option(const struct rb_info *info, u32 mask)
+{
+       return rb_hw_option_match(info, mask, mask);
+}
+
 #ifdef CONFIG_ATH79_ROUTERBOOT
 const struct rb_info *rb_init_info(void *data, unsigned int size);
 void *rb_get_wlan_data(void);