diff options
author | Tony Lindgren <tony@atomide.com> | 2010-12-23 03:42:35 +0100 |
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committer | Tony Lindgren <tony@atomide.com> | 2010-12-23 03:42:35 +0100 |
commit | 40e44399301b6dbd997408a184140b79b77f632d (patch) | |
tree | 0daf60d3c9f49fd1b5e7b34811a519ded2a89927 | |
parent | omap2+: Allow hwmod state changes to mux pads based on the state changes (diff) | |
download | linux-40e44399301b6dbd997408a184140b79b77f632d.tar.xz linux-40e44399301b6dbd997408a184140b79b77f632d.zip |
omap2+: Add struct omap_board_data and use it for platform level serial init
This is needed to pass board specific data such as pads used to the
platform level driver init code.
Signed-off-by: Tony Lindgren <tony@atomide.com>
-rw-r--r-- | arch/arm/mach-omap2/mux.h | 14 | ||||
-rw-r--r-- | arch/arm/mach-omap2/serial.c | 28 | ||||
-rw-r--r-- | arch/arm/plat-omap/include/plat/serial.h | 5 |
3 files changed, 38 insertions, 9 deletions
diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h index c9ec50de99c9..a4ab17a737a6 100644 --- a/arch/arm/mach-omap2/mux.h +++ b/arch/arm/mach-omap2/mux.h @@ -87,6 +87,20 @@ #define OMAP_MUX_GPIO_IN_MODE3 (1 << 1) /** + * struct omap_board_data - board specific device data + * @id: instance id + * @flags: additional flags for platform init code + * @pads: array of device specific pads + * @pads_cnt: ARRAY_SIZE() of pads + */ +struct omap_board_data { + int id; + u32 flags; + struct omap_device_pad *pads; + int pads_cnt; +}; + +/** * struct mux_partition - contain partition related information * @name: name of the current partition * @flags: flags specific to this partition diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index c8740ba4fba5..c64578853a8d 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -45,6 +45,7 @@ #include "cm2xxx_3xxx.h" #include "prm-regbits-34xx.h" #include "control.h" +#include "mux.h" #define UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV 0x52 #define UART_OMAP_WER 0x17 /* Wake-up enable register */ @@ -694,16 +695,16 @@ void __init omap_serial_early_init(void) /** * omap_serial_init_port() - initialize single serial port - * @port: serial port number (0-3) + * @bdata: port specific board data pointer * - * This function initialies serial driver for given @port only. + * This function initialies serial driver for given port only. * Platforms can call this function instead of omap_serial_init() * if they don't plan to use all available UARTs as serial ports. * * Don't mix calls to omap_serial_init_port() and omap_serial_init(), * use only one of the two. */ -void __init omap_serial_init_port(int port) +void __init omap_serial_init_port(struct omap_board_data *bdata) { struct omap_uart_state *uart; struct omap_hwmod *oh; @@ -721,13 +722,15 @@ void __init omap_serial_init_port(int port) struct omap_uart_port_info omap_up; #endif - if (WARN_ON(port < 0)) + if (WARN_ON(!bdata)) return; - if (WARN_ON(port >= num_uarts)) + if (WARN_ON(bdata->id < 0)) + return; + if (WARN_ON(bdata->id >= num_uarts)) return; list_for_each_entry(uart, &uart_list, node) - if (port == uart->num) + if (bdata->id == uart->num) break; oh = uart->oh; @@ -799,6 +802,8 @@ void __init omap_serial_init_port(int port) WARN(IS_ERR(od), "Could not build omap_device for %s: %s.\n", name, oh->name); + oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt); + uart->irq = oh->mpu_irqs[0].irq; uart->regshift = 2; uart->mapbase = oh->slaves[0]->addr->pa_start; @@ -856,7 +861,14 @@ void __init omap_serial_init_port(int port) void __init omap_serial_init(void) { struct omap_uart_state *uart; + struct omap_board_data bdata; - list_for_each_entry(uart, &uart_list, node) - omap_serial_init_port(uart->num); + list_for_each_entry(uart, &uart_list, node) { + bdata.id = uart->num; + bdata.flags = 0; + bdata.pads = NULL; + bdata.pads_cnt = 0; + omap_serial_init_port(&bdata); + + } } diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h index 19145f5c32ba..cec5d56db2eb 100644 --- a/arch/arm/plat-omap/include/plat/serial.h +++ b/arch/arm/plat-omap/include/plat/serial.h @@ -93,9 +93,12 @@ }) #ifndef __ASSEMBLER__ + +struct omap_board_data; + extern void __init omap_serial_early_init(void); extern void omap_serial_init(void); -extern void omap_serial_init_port(int port); +extern void omap_serial_init_port(struct omap_board_data *bdata); extern int omap_uart_can_sleep(void); extern void omap_uart_check_wakeup(void); extern void omap_uart_prepare_suspend(void); |