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rockchip: rk3368: support UART2/4 in board_debug_uart_init()

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evb-rk3368 is using UART2 and PX5 evb is using UART4

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
This commit is contained in:
Kever Yang 2019-03-29 22:48:24 +08:00
parent a5fd9a7e1e
commit 579a168466
1 changed files with 40 additions and 0 deletions
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40
arch/arm/mach-rockchip/rk3368/rk3368.c
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@ -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