From 0b50c691f93a973136dc821ef11372ffdfae9646 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 22 Dec 2010 18:42:36 -0800 Subject: [PATCH] omap2+: Initialize serial port for dynamic remuxing for n8x0 Use omap_serial_init_port so we can let the serial code handle the remuxing of the RX pads. Note that this patch alone is not enough and additional GPIO related patches are needed. Only initialize uart3_rx_irrx pin, the other uart pins can be stay static. Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-n8x0.c | 40 ++++++++++++++++++++++++++++++-- 1 file changed, 38 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c index 43af70ec771e..147d9005f320 100644 --- a/arch/arm/mach-omap2/board-n8x0.c +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -645,6 +645,43 @@ static struct omap_board_mux board_mux[] __initdata = { OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT), { .reg_offset = OMAP_MUX_TERMINATOR }, }; + +static struct omap_device_pad serial2_pads[] __initdata = { + { + .name = "uart3_rx_irrx.uart3_rx_irrx", + .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, + .enable = OMAP_MUX_MODE0, + .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */ + }, +}; + +static inline void board_serial_init(void) +{ + struct omap_board_data bdata; + + bdata.flags = 0; + bdata.pads = NULL; + bdata.pads_cnt = 0; + + bdata.id = 0; + omap_serial_init_port(&bdata); + + bdata.id = 1; + omap_serial_init_port(&bdata); + + bdata.id = 2; + bdata.pads = serial2_pads; + bdata.pads_cnt = ARRAY_SIZE(serial2_pads); + omap_serial_init_port(&bdata); +} + +#else + +static inline void board_serial_init(void) +{ + omap_serial_init(); +} + #endif static void __init n8x0_init_machine(void) @@ -659,8 +696,7 @@ static void __init n8x0_init_machine(void) if (machine_is_nokia_n810()) i2c_register_board_info(2, n810_i2c_board_info_2, ARRAY_SIZE(n810_i2c_board_info_2)); - - omap_serial_init(); + board_serial_init(); gpmc_onenand_init(board_onenand_data); n8x0_mmc_init(); n8x0_usb_init();