Kever Yang kever.yang@rock-chips.com 于2019年3月29日周五 下午10:54写道：
evb-rk3368 is using UART2 and PX5 evb is using UART4
Signed-off-by: Kever Yang kever.yang@rock-chips.com
arch/arm/mach-rockchip/rk3368/rk3368.c | 40 ++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)
Tested-by: Andy Yan andy.yan@rock-chips.com
diff --git a/arch/arm/mach-rockchip/rk3368/rk3368.c b/arch/arm/mach-rockchip/rk3368/rk3368.c index 1ed06c5352..f06d27717d 100644 --- a/arch/arm/mach-rockchip/rk3368/rk3368.c +++ b/arch/arm/mach-rockchip/rk3368/rk3368.c @@ -124,6 +124,46 @@ void board_debug_uart_init(void) GPIO2D0_MASK, GPIO2D0_UART0_SIN); rk_clrsetreg(&grf->gpio2d_iomux, GPIO2D1_MASK, GPIO2D1_UART0_SOUT); +#elif defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff1c0000)
struct rk3368_pmu_grf * const pmugrf __maybe_unused =(struct rk3368_pmu_grf * const)0xff738000;enum {/* UART4 */GPIO0D2_MASK = GENMASK(5, 4),GPIO0D2_GPIO = 0,GPIO0D2_UART4_SOUT = (3 << 4),GPIO0D3_MASK = GENMASK(7, 6),GPIO0D3_GPIO = 0,GPIO0D3_UART4_SIN = (3 << 6),};/* Enable early UART4 on the PX5 */rk_clrsetreg(&pmugrf->gpio0d_iomux,GPIO0D2_MASK | GPIO0D3_MASK,GPIO0D2_UART4_SOUT | GPIO0D3_UART4_SIN);+#elif defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff690000)
struct rk3368_grf * const grf =(struct rk3368_grf * const)0xff770000;enum {GPIO2A6_SHIFT = 12,GPIO2A6_MASK = GENMASK(13, 12),GPIO2A6_GPIO = 0,GPIO2A6_UART2_SIN = (2 << GPIO2A6_SHIFT),GPIO2A5_SHIFT = 10,GPIO2A5_MASK = GENMASK(11, 10),GPIO2A5_GPIO = 0,GPIO2A5_UART2_SOUT = (2 << GPIO2A5_SHIFT),};/* Enable early UART2 on the RK3368 */rk_clrsetreg(&grf->gpio2a_iomux,GPIO2A6_MASK, GPIO2A6_UART2_SIN);rk_clrsetreg(&grf->gpio2a_iomux,GPIO2A5_MASK, GPIO2A5_UART2_SOUT);#endif }
#endif
2.20.1
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