diff options
Diffstat (limited to 'arch/arm/mach-omap2/usb-musb.c')
| -rw-r--r-- | arch/arm/mach-omap2/usb-musb.c | 173 |
1 files changed, 50 insertions, 123 deletions
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index 34a56a136ef..bc897231bd1 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -23,105 +23,24 @@ #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/io.h> - #include <linux/usb/musb.h> -#include <mach/hardware.h> -#include <mach/irqs.h> -#include <mach/pm.h> -#include <mach/mux.h> -#include <mach/usb.h> - -static struct resource musb_resources[] = { - [0] = { /* start and end set dynamically */ - .flags = IORESOURCE_MEM, - }, - [1] = { /* general IRQ */ - .start = INT_243X_HS_USB_MC, - .flags = IORESOURCE_IRQ, - }, - [2] = { /* DMA IRQ */ - .start = INT_243X_HS_USB_DMA, - .flags = IORESOURCE_IRQ, - }, -}; - -static int clk_on; - -static int musb_set_clock(struct clk *clk, int state) -{ - if (state) { - if (clk_on > 0) - return -ENODEV; - - clk_enable(clk); - clk_on = 1; - } else { - if (clk_on == 0) - return -ENODEV; - - clk_disable(clk); - clk_on = 0; - } - - return 0; -} - -static struct musb_hdrc_eps_bits musb_eps[] = { - { "ep1_tx", 10, }, - { "ep1_rx", 10, }, - { "ep2_tx", 9, }, - { "ep2_rx", 9, }, - { "ep3_tx", 3, }, - { "ep3_rx", 3, }, - { "ep4_tx", 3, }, - { "ep4_rx", 3, }, - { "ep5_tx", 3, }, - { "ep5_rx", 3, }, - { "ep6_tx", 3, }, - { "ep6_rx", 3, }, - { "ep7_tx", 3, }, - { "ep7_rx", 3, }, - { "ep8_tx", 2, }, - { "ep8_rx", 2, }, - { "ep9_tx", 2, }, - { "ep9_rx", 2, }, - { "ep10_tx", 2, }, - { "ep10_rx", 2, }, - { "ep11_tx", 2, }, - { "ep11_rx", 2, }, - { "ep12_tx", 2, }, - { "ep12_rx", 2, }, - { "ep13_tx", 2, }, - { "ep13_rx", 2, }, - { "ep14_tx", 2, }, - { "ep14_rx", 2, }, - { "ep15_tx", 2, }, - { "ep15_rx", 2, }, -}; +#include "omap_device.h" +#include "soc.h" +#include "mux.h" +#include "usb.h" static struct musb_hdrc_config musb_config = { .multipoint = 1, .dyn_fifo = 1, - .soft_con = 1, - .dma = 1, .num_eps = 16, - .dma_channels = 7, - .dma_req_chan = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3), .ram_bits = 12, - .eps_bits = musb_eps, }; static struct musb_hdrc_platform_data musb_plat = { -#ifdef CONFIG_USB_MUSB_OTG .mode = MUSB_OTG, -#elif defined(CONFIG_USB_MUSB_HDRC_HCD) - .mode = MUSB_HOST, -#elif defined(CONFIG_USB_GADGET_MUSB_HDRC) - .mode = MUSB_PERIPHERAL, -#endif + /* .clock is set dynamically */ - .set_clock = musb_set_clock, .config = &musb_config, /* REVISIT charge pump on TWL4030 can supply up to @@ -133,55 +52,63 @@ static struct musb_hdrc_platform_data musb_plat = { static u64 musb_dmamask = DMA_BIT_MASK(32); -static struct platform_device musb_device = { - .name = "musb_hdrc", - .id = -1, - .dev = { - .dma_mask = &musb_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - .platform_data = &musb_plat, - }, - .num_resources = ARRAY_SIZE(musb_resources), - .resource = musb_resources, -}; - -#ifdef CONFIG_NOP_USB_XCEIV -static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32); - -static struct platform_device nop_xceiv_device = { - .name = "nop_usb_xceiv", - .id = -1, - .dev = { - .dma_mask = &nop_xceiv_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - .platform_data = NULL, - }, +static struct omap_musb_board_data musb_default_board_data = { + .interface_type = MUSB_INTERFACE_ULPI, + .mode = MUSB_OTG, + .power = 100, }; -#endif -void __init usb_musb_init(void) +void __init usb_musb_init(struct omap_musb_board_data *musb_board_data) { - if (cpu_is_omap243x()) - musb_resources[0].start = OMAP243X_HS_BASE; + struct omap_hwmod *oh; + struct platform_device *pdev; + struct device *dev; + int bus_id = -1; + const char *oh_name, *name; + struct omap_musb_board_data *board_data; + + if (musb_board_data) + board_data = musb_board_data; else - musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE; - musb_resources[0].end = musb_resources[0].start + SZ_8K - 1; + board_data = &musb_default_board_data; /* * REVISIT: This line can be removed once all the platforms using * musb_core.c have been converted to use use clkdev. */ musb_plat.clock = "ick"; - -#ifdef CONFIG_NOP_USB_XCEIV - if (platform_device_register(&nop_xceiv_device) < 0) { - printk(KERN_ERR "Unable to register NOP-XCEIV device\n"); - return; + musb_plat.board_data = board_data; + musb_plat.power = board_data->power >> 1; + musb_plat.mode = board_data->mode; + musb_plat.extvbus = board_data->extvbus; + + if (soc_is_am35xx()) { + oh_name = "am35x_otg_hs"; + name = "musb-am35x"; + } else if (cpu_is_ti81xx()) { + oh_name = "usb_otg_hs"; + name = "musb-ti81xx"; + } else { + oh_name = "usb_otg_hs"; + name = "musb-omap2430"; } -#endif - if (platform_device_register(&musb_device) < 0) { - printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n"); + oh = omap_hwmod_lookup(oh_name); + if (WARN(!oh, "%s: could not find omap_hwmod for %s\n", + __func__, oh_name)) + return; + + pdev = omap_device_build(name, bus_id, oh, &musb_plat, + sizeof(musb_plat)); + if (IS_ERR(pdev)) { + pr_err("Could not build omap_device for %s %s\n", + name, oh_name); return; } + + dev = &pdev->dev; + get_device(dev); + dev->dma_mask = &musb_dmamask; + dev->coherent_dma_mask = musb_dmamask; + put_device(dev); } |