Tony >-----Original Message----- >From: Tony Lindgren [mailto:[email protected]] >Sent: Tuesday, May 19, 2009 11:30 AM >To: Pandita, Vikram >Cc: Christensen, Mikkel; [email protected] >Subject: Re: [PATCH v3 1/3] OMAP3:zoom2: Add support for OMAP3 Zoom2 board > >* Pandita, Vikram <[email protected]> [090518 20:55]: >> Tony >> >> >* Pandita, Vikram <[email protected]> [090518 14:31]: >> >> Tony >> >> >> >> >> >> >> >> + >> >> >> + zoom2_init_smsc911x(); >> >> >> + zoom2_init_quaduart(); >> >> >> + return platform_add_devices(zoom2_devices, >> >> >> ARRAY_SIZE(zoom2_devices)); >> >> >> +} >> >> >> +arch_initcall(omap_zoom2_debugboard_init); >> >> > >> >> >Please just move all the related functions to board-zoom2.c. I don't see >> >> >any >> >> >reason to have a separate file for the debugboard features. The runtime >> >> >detection >> >> >should do the trick. >> >> >> >> Two reasons for keeping a separate debug board. >> >> a) debug board is detachable in h/w and hence we thought its better to >> >> keep the s/w also that >way >> >> The quart chip on debug bard is a quard-uart and can support 4 different >> >> console outputs. >> >> All those we thought of adding in future. >> > >> >Well those you can easily optimize out by not compiling in those devices. >> > >> >> >> >> b) we took reference from board-rx51-peripherals.c wherein some parts of >> >> the board file can be >> >moved out to a new file >> >> >> >> If you still think we need to merge, then let us know. >> >> We are open to suggestions/changes. >> > >> >Well the reason for separate board-*-peripheral-whatever.c files is that >> >they're intended to be shared with other board-*.c files. Currently n8x0 >> >and rx51 share devices. In general, we should try to do generic platform >> >init files, like gpmc-onenand.c and gpmc-smc91x.c. >> > >> >Then I see need for gpmc-sdp-flash.c that's shared between 2430 and 3430 sdp >> >at least. >> > >> >So yeah, for zoom2, I'd rather see just board-zoom2.c for now. But if you >> >create some other board that uses the same debug board functions, then >> >there could be a separate zoom-debugboard.c. >> >> >> Yes. There is next generation of zoom boards that will re-use the Debug >> board. >> That way the debug board file will get re-used. > >OK, how about rename it to something that makes sense as a name for >multiple zoom like boards and resubmit.
I am planning on renaming debug board zoom2 file to board-zoom-debugboard.c That way it can be used by different Zoom family of boards. > >Also the arch_initcall() issue below still needs fixing. I have cleaned the issue by making the debug_board_init call as late_initcall(). There is a dependency on serial.c file and hence the need for arch_init/late_init calls. platform_device_register() should happen for serial.c file (8250) for the omap uarts first and this should be followed by platform_device_register() for the quard uart on debug board. So there is a dependency on order of registration of platform device for the same 8250 driver. If you ack, then I can post the patches with the changes. > >Regards, > >Tony > >> >> > >> >Regards, >> > >> >Tony >> > >> > >> >> > >> >> >Also, the arch_initcall() above is wrong, it runs for all the boards and >> >> >platforms compiled in even if they are not zoom2 boards. >> >> > >> >> >Other than, looks OK to me, so we might be able to get this into mainline >> >> >this merge window. >> >> > >> >> >Regards, >> >> > >> >> >Tony >> >> >> >> >> >> >> >> > >> >> > >> >> >> diff --git a/arch/arm/mach-omap2/board-zoom2.c >> >> >> b/arch/arm/mach-omap2/board-zoom2.c >> >> >> new file mode 100644 >> >> >> index 0000000..5a656b3 >> >> >> --- /dev/null >> >> >> +++ b/arch/arm/mach-omap2/board-zoom2.c >> >> >> @@ -0,0 +1,107 @@ >> >> >> +/* >> >> >> + * Copyright (C) 2009 Texas Instruments Inc. >> >> >> + * Mikkel Christensen <[email protected]> >> >> >> + * >> >> >> + * Modified from mach-omap2/board-ldp.c >> >> >> + * >> >> >> + * This program is free software; you can redistribute it and/or >> >> >> modify >> >> >> + * it under the terms of the GNU General Public License version 2 as >> >> >> + * published by the Free Software Foundation. >> >> >> + */ >> >> >> + >> >> >> +#include <linux/kernel.h> >> >> >> +#include <linux/init.h> >> >> >> +#include <linux/platform_device.h> >> >> >> +#include <linux/i2c/twl4030.h> >> >> >> + >> >> >> +#include <asm/mach-types.h> >> >> >> +#include <asm/mach/arch.h> >> >> >> + >> >> >> +#include <mach/gpio.h> >> >> >> +#include <mach/common.h> >> >> >> +#include <mach/usb.h> >> >> >> + >> >> >> +#include "mmc-twl4030.h" >> >> >> + >> >> >> +static void __init omap_zoom2_init_irq(void) >> >> >> +{ >> >> >> + omap2_init_common_hw(NULL); >> >> >> + omap_init_irq(); >> >> >> + omap_gpio_init(); >> >> >> +} >> >> >> + >> >> >> +static struct omap_uart_config zoom2_uart_config __initdata = { >> >> >> + .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), >> >> >> +}; >> >> >> + >> >> >> +static struct omap_board_config_kernel zoom2_config[] __initdata = { >> >> >> + { OMAP_TAG_UART, &zoom2_uart_config }, >> >> >> +}; >> >> >> + >> >> >> +static struct twl4030_gpio_platform_data zoom2_gpio_data = { >> >> >> + .gpio_base = OMAP_MAX_GPIO_LINES, >> >> >> + .irq_base = TWL4030_GPIO_IRQ_BASE, >> >> >> + .irq_end = TWL4030_GPIO_IRQ_END, >> >> >> +}; >> >> >> + >> >> >> +static struct twl4030_platform_data zoom2_twldata = { >> >> >> + .irq_base = TWL4030_IRQ_BASE, >> >> >> + .irq_end = TWL4030_IRQ_END, >> >> >> + >> >> >> + /* platform_data for children goes here */ >> >> >> + .gpio = &zoom2_gpio_data, >> >> >> +}; >> >> >> + >> >> >> +static struct i2c_board_info __initdata zoom2_i2c_boardinfo[] = { >> >> >> + { >> >> >> + I2C_BOARD_INFO("twl4030", 0x48), >> >> >> + .flags = I2C_CLIENT_WAKE, >> >> >> + .irq = INT_34XX_SYS_NIRQ, >> >> >> + .platform_data = &zoom2_twldata, >> >> >> + }, >> >> >> +}; >> >> >> + >> >> >> +static int __init omap_i2c_init(void) >> >> >> +{ >> >> >> + omap_register_i2c_bus(1, 2600, zoom2_i2c_boardinfo, >> >> >> + ARRAY_SIZE(zoom2_i2c_boardinfo)); >> >> >> + omap_register_i2c_bus(2, 400, NULL, 0); >> >> >> + omap_register_i2c_bus(3, 400, NULL, 0); >> >> >> + return 0; >> >> >> +} >> >> >> + >> >> >> +static struct twl4030_hsmmc_info mmc[] __initdata = { >> >> >> + { >> >> >> + .mmc = 1, >> >> >> + .wires = 4, >> >> >> + .gpio_cd = -EINVAL, >> >> >> + .gpio_wp = -EINVAL, >> >> >> + }, >> >> >> + {} /* Terminator */ >> >> >> +}; >> >> >> + >> >> >> +static void __init omap_zoom2_init(void) >> >> >> +{ >> >> >> + omap_i2c_init(); >> >> >> + omap_board_config = zoom2_config; >> >> >> + omap_board_config_size = ARRAY_SIZE(zoom2_config); >> >> >> + omap_serial_init(); >> >> >> + twl4030_mmc_init(mmc); >> >> >> + usb_musb_init(); >> >> >> +} >> >> >> + >> >> >> +static void __init omap_zoom2_map_io(void) >> >> >> +{ >> >> >> + omap2_set_globals_343x(); >> >> >> + omap2_map_common_io(); >> >> >> +} >> >> >> + >> >> >> +MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board") >> >> >> + .phys_io = 0x48000000, >> >> >> + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, >> >> >> + .boot_params = 0x80000100, >> >> >> + .map_io = omap_zoom2_map_io, >> >> >> + .init_irq = omap_zoom2_init_irq, >> >> >> + .init_machine = omap_zoom2_init, >> >> >> + .timer = &omap_timer, >> >> >> +MACHINE_END >> >> >> -- >> >> >> 1.5.4.3 >> >> >> >> >> >> -- >> >> >> To unsubscribe from this list: send the line "unsubscribe linux-omap" >> >> >> in >> >> >> the body of a message to [email protected] >> >> >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> >> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
