[PATCH v3 03/12] OMAP2+: Serial: Add default mux for all uarts.
From: Govindraj.R <hidden>
Date: 2011-06-08 11:23:05
Also in:
linux-omap, linux-serial
Subsystem:
arm port, omap2+ support, the rest · Maintainers:
Russell King, Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Linus Torvalds
Add default mux data for all uarts if mux info is not passed from board file to avoid breaking any board support. Signed-off-by: Govindraj.R <redacted> --- arch/arm/mach-omap2/serial.c | 127 +++++++++++++++++++++++++++++++++++++++++- 1 files changed, 126 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index b16768a..8c1a4c7 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c@@ -66,6 +66,129 @@ static struct omap_device_pm_latency omap_uart_latency[] = { }, }; +#ifdef CONFIG_OMAP_MUX +static struct omap_device_pad default_uart1_pads[] __initdata = { + { + .name = "uart1_cts.uart1_cts", + .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, + }, + { + .name = "uart1_rts.uart1_rts", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "uart1_tx.uart1_tx", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "uart1_rx.uart1_rx", + .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, + .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, + }, +}; + +static struct omap_device_pad default_uart2_pads[] __initdata = { + { + .name = "uart2_cts.uart2_cts", + .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, + }, + { + .name = "uart2_rts.uart2_rts", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "uart2_tx.uart2_tx", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "uart2_rx.uart2_rx", + .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, + .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, + }, +}; + +static struct omap_device_pad default_uart3_pads[] __initdata = { + { + .name = "uart3_cts_rctx.uart3_cts_rctx", + .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, + }, + { + .name = "uart3_rts_sd.uart3_rts_sd", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "uart3_tx_irtx.uart3_tx_irtx", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "uart3_rx_irrx.uart3_rx_irrx", + .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, + .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0, + }, +}; + +static struct omap_device_pad default_omap36xx_uart4_pads[] __initdata = { + { + .name = "gpmc_wait2.uart4_tx", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "gpmc_wait3.uart4_rx", + .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, + .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE2, + }, +}; + +static struct omap_device_pad default_omap4_uart4_pads[] __initdata = { + { + .name = "uart4_tx.uart4_tx", + .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, + }, + { + .name = "uart4_rx.uart4_rx", + .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, + .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0, + }, +}; +#else +static struct omap_device_pad default_uart1_pads[] __initdata = {}; +static struct omap_device_pad default_uart2_pads[] __initdata = {}; +static struct omap_device_pad default_uart3_pads[] __initdata = {}; +static struct omap_device_pad default_omap36xx_uart4_pads[] __initdata = {}; +static struct omap_device_pad default_omap4_uart4_pads[] __initdata = {}; +#endif + +static void omap_serial_fill_default_pads(struct omap_board_data *bdata) +{ + switch (bdata->id) { + case 0: + bdata->pads = default_uart1_pads; + bdata->pads_cnt = ARRAY_SIZE(default_uart1_pads); + break; + case 1: + bdata->pads = default_uart2_pads; + bdata->pads_cnt = ARRAY_SIZE(default_uart2_pads); + break; + case 2: + bdata->pads = default_uart3_pads; + bdata->pads_cnt = ARRAY_SIZE(default_uart3_pads); + break; + case 3: + if (cpu_is_omap44xx()) { + bdata->pads = default_omap4_uart4_pads; + bdata->pads_cnt = + ARRAY_SIZE(default_omap4_uart4_pads); + } else { + bdata->pads = default_omap36xx_uart4_pads; + bdata->pads_cnt = + ARRAY_SIZE(default_omap36xx_uart4_pads); + } + break; + default: + break; + } +} + static void omap_uart_idle_init(struct omap_uart_port_info *uart, unsigned short num) {
@@ -242,6 +365,8 @@ void __init omap_serial_init(void) bdata.flags = 0; bdata.pads = NULL; bdata.pads_cnt = 0; - omap_serial_init_port(&bdata); + + if (cpu_is_omap44xx() || cpu_is_omap34xx()) + omap_serial_fill_default_pads(&bdata); } }
--
1.7.0.4