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From devnull@lkml.org Thu Apr 18 17:11:50 2024 Delivery-date: Tue, 27 Apr 2010 13:02:28 +0200 Received: from sm-d311v.smileserver.ne.jp ([203.211.202.206]:14594 "EHLO sm-d311v.smileserver.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754276Ab0D0LCM (ORCPT ); Tue, 27 Apr 2010 07:02:12 -0400 X-Virus-Status: clean(F-Secure/virusgw_smtp/303/viruscheck1-01.private.hosting-pf.net) Received: from tsmail03 (unknown [122.210.32.228]) by sm-d311v.smileserver.ne.jp (mail) with SMTP id 6A21D96D85; Tue, 27 Apr 2010 20:02:10 +0900 (JST) Message-Id: <001f01cae5f9$157be920$66f8800a@maildom.okisemi.com> From: "Masayuki Ohtake" To: "LKML" Cc: "Wang, Yong Y" , "Wang, Qi" , "Intel OTC" , "Andrew" Subject: [PATCH] Topcliff UART: Add the UART driver [2/2] Mime-Version: 1.0 Date: Tue, 27 Apr 2010 20:01:30 +0900 Content-Type: message/partial; total=2; id="01CAE5F9.14B84B00@tsmail03"; number=2 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1983 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1983 X-Hosting-Pf: 0 X-NAI-Spam-Score: 1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-Id: X-Mailing-List: linux-kernel@vger.kernel.org + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_pch_init, + .setup = pci_pch_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_PCH_UART3, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_pch_init, + .setup = pci_pch_setup, + }, +#endif + /* * Default "match everything" terminator entry */ { @@ -1571,6 +1691,10 @@ pbn_ADDIDATA_PCIe_2_3906250, pbn_ADDIDATA_PCIe_4_3906250, pbn_ADDIDATA_PCIe_8_3906250, +#if defined(ENABLE_SERIAL_8250_PCH) + pbn_pch_uart_8L_256FIFO, /* pch 8 Line UART with 256 byte FIFO */ + pbn_pch_uart_2L_64FIFO /* pch 2 Line UART with 64 byte FIFO */ +#endif }; /* @@ -2228,6 +2352,27 @@ .uart_offset = 0x200, .first_offset = 0x1000, }, + +#if defined(ENABLE_SERIAL_8250_PCH) + + /* + * PCH UART + */ + [pbn_pch_uart_8L_256FIFO] = { + .flags = FL_BASE0, + .num_ports = 1, + .base_baud = 115200, /* OKISEMI For LSI */ + .reg_shift = 0, + }, + + [pbn_pch_uart_2L_64FIFO] = { + .flags = FL_BASE0, + .num_ports = 1, + .base_baud = 115200, /* OKISEMI For LSI*/ + .reg_shift = 0, + }, +#endif + }; static const struct pci_device_id softmodem_blacklist[] = { @@ -2473,8 +2618,20 @@ return -EINVAL; } +#ifdef DEBUG + printk(KERN_DEBUG "PCH UART LOG:function pciserial_init_one ent->vendor" + " = %x\n, ent->device = %x, ent->driver_data = %ld\n ", + ent->vendor, ent->device, ent->driver_data); +#endif + board = &pci_boards[ent->driver_data]; +#ifdef DEBUG + printk(KERN_DEBUG "PCH UART LOG:function pciserial_init_one board->" + "base_baud = %u\n, board->flags = %d, board->num_ports = %d\n " + , board->base_baud, board->flags, board->num_ports); +#endif + rc = pci_enable_device(dev); if (rc) return rc; @@ -2540,6 +2697,17 @@ if (priv) pciserial_suspend_ports(priv); +#if defined(ENABLE_SERIAL_8250_PCH) + +#ifdef DEBUG + printk(KERN_DEBUG "PCH UART LOG:pciserial_suspend_one->pci_enable_wake" + "invoked \n"); +#endif + + + pci_enable_wake(dev, PCI_D3hot, 1); +#endif + pci_save_state(dev); pci_set_power_state(dev, pci_choose_state(dev, state)); return 0; @@ -2561,6 +2729,17 @@ /* FIXME: We cannot simply error out here */ if (err) printk(KERN_ERR "pciserial: Unable to re-enable ports, trying to continue.\n"); + +#if defined(ENABLE_SERIAL_8250_PCH) + +#ifdef DEBUG + printk(KERN_DEBUG "PCH UART LOG:pciserial_resume_one->pci_enable_wake" + "invoked \n"); +#endif + + pci_enable_wake(dev, PCI_D3hot, 0); +#endif + pciserial_resume_ports(priv); } return 0; @@ -3649,6 +3828,48 @@ 0, 0, pbn_b0_1_115200 }, /* + * PCH UART + */ +#if defined(ENABLE_SERIAL_8250_PCH) + + { PCI_VENDOR_ID_INTEL, + /*device id for pch uart with 8 i/o lines and 256 byte fifo. */ + PCI_DEVICE_ID_PCH_UART0, + PCI_ANY_ID, + PCI_ANY_ID, + 0, + 0, + pbn_pch_uart_8L_256FIFO }, + + { PCI_VENDOR_ID_INTEL, + /*device id for pch uart with 2 i/o lines and 256 byte fifo. */ + PCI_DEVICE_ID_PCH_UART1, + PCI_ANY_ID, + PCI_ANY_ID, + 0, + 0, + pbn_pch_uart_2L_64FIFO }, + + { PCI_VENDOR_ID_INTEL, + /*device id for pch uart with 8 i/o lines and 64 byte fifo. */ + PCI_DEVICE_ID_PCH_UART2, + PCI_ANY_ID, + PCI_ANY_ID, + 0, + 0, + pbn_pch_uart_2L_64FIFO }, + + { PCI_VENDOR_ID_INTEL, + /*device id for pch uart with 2 i/o lines and 64 byte fifo. */ + PCI_DEVICE_ID_PCH_UART3, + PCI_ANY_ID, + PCI_ANY_ID, + 0, + 0, + pbn_pch_uart_2L_64FIFO }, +#endif + + /* * These entries match devices with class COMMUNICATION_SERIAL, * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL */ diff -urN linux-2.6.33.1/drivers/serial/Kconfig topcliff-2.6.33.1/drivers/serial/Kconfig --- linux-2.6.33.1/drivers/serial/Kconfig 2010-03-16 01:09:39.000000000 +0900 +++ topcliff-2.6.33.1/drivers/serial/Kconfig 2010-03-23 10:34:44.000000000 +0900 @@ -89,6 +89,21 @@ disable this feature if you only need legacy serial support. Saves about 9K. +config SERIAL_8250_PCH + tristate "PCH PCI serial device support" + depends on SERIAL_8250 && PCI && SERIAL_8250_PCI + default SERIAL_8250_PCI + help + This makes the PCH PCI serial driver to support high speed PCH serial ports. + +config SERIAL_8250_PCH_DMA + bool "Enable DMA mode of PCH PCI serial device" + depends on SERIAL_8250_PCH + select PCH_UART_DMA + default y + help + This makes the PCH PCI serial driver with DMA mode. + config SERIAL_8250_PNP tristate "8250/16550 PNP device support" if EMBEDDED depends on SERIAL_8250 && PNP diff -urN linux-2.6.33.1/drivers/serial/Makefile topcliff-2.6.33.1/drivers/serial/Makefile --- linux-2.6.33.1/drivers/serial/Makefile 2010-03-16 01:09:39.000000000 +0900 +++ topcliff-2.6.33.1/drivers/serial/Makefile 2010-04-27 11:29:58.000000000 +0900 @@ -1,6 +1,17 @@ # # Makefile for the kernel serial device drivers. # +# +#This is needed to enable pch dma# +#EXTRA_CFLAGS +=-DENABLE_PCH_DMA_FEATURE +ifdef CONFIG_SERIAL_8250_PCH +EXTRA_CFLAGS +=-DENABLE_SERIAL_8250_PCH +endif + +ifdef CONFIG_PCH_UART_DMA +EXTRA_CFLAGS +=-DENABLE_PCH_DMA_FEATURE +EXTRA_CFLAGS +=-Idrivers/dma/pch_dma/ +endif obj-$(CONFIG_SERIAL_CORE) += serial_core.o obj-$(CONFIG_SERIAL_21285) += 21285.o -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/