diff options
| author | Kever Yang <kever.yang@rock-chips.com> | 2019-01-29 11:51:40 +0800 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2019-03-26 11:54:12 +0800 |
| commit | 33baa40f0f5304845e01ec5f69ba2293a5e15d4d (patch) | |
| tree | 4b08896a0e171480ba2e8c39943ec59640462de4 | |
| parent | 903381d2b2db2b884dacd54e52c6002a275f1e13 (diff) | |
rockchip: rk3368: support UART4 in board_debug_uart_init()
PX5 evb is using UART4
Change-Id: I16ae5c7037123ef1c9d1c793e11d48081214b433
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
| -rw-r--r-- | arch/arm/mach-rockchip/rk3368/rk3368.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3368/rk3368.c b/arch/arm/mach-rockchip/rk3368/rk3368.c index 0bfe39d5f3..5fe2f3f19f 100644 --- a/arch/arm/mach-rockchip/rk3368/rk3368.c +++ b/arch/arm/mach-rockchip/rk3368/rk3368.c @@ -254,6 +254,25 @@ 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) /* Enable early UART2 on the RK3368 */ rk_clrsetreg(&grf->gpio2a_iomux, |