From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from de01egw01.freescale.net (de01egw01.freescale.net [192.88.165.102]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "de01egw01.freescale.net", Issuer "Thawte Premium Server CA" (verified OK)) by ozlabs.org (Postfix) with ESMTP id 310A8DDFEF for ; Tue, 4 Mar 2008 19:30:50 +1100 (EST) Received: from de01smr01.freescale.net (de01smr01.freescale.net [10.208.0.31]) by de01egw01.freescale.net (8.12.11/de01egw01) with ESMTP id m248Uih2015963 for ; Tue, 4 Mar 2008 01:30:45 -0700 (MST) Received: from zch01exm26.fsl.freescale.net (zch01exm26.ap.freescale.net [10.192.129.221]) by de01smr01.freescale.net (8.13.1/8.13.0) with ESMTP id m248UYX4000251 for ; Tue, 4 Mar 2008 02:30:43 -0600 (CST) From: Zhang Wei To: mporter@kernel.crashing.org, galak@kernel.crashing.org Subject: [PATCH 09/17] Add serial RapidIO controller support, which includes MPC8548, MPC8641. Date: Wed, 5 Mar 2008 00:29:54 +0800 Message-Id: <1204648202-5495-9-git-send-email-wei.zhang@freescale.com> In-Reply-To: <1204648202-5495-8-git-send-email-wei.zhang@freescale.com> References: <1204648202-5495-1-git-send-email-wei.zhang@freescale.com> <1204648202-5495-2-git-send-email-wei.zhang@freescale.com> <1204648202-5495-3-git-send-email-wei.zhang@freescale.com> <1204648202-5495-4-git-send-email-wei.zhang@freescale.com> <1204648202-5495-5-git-send-email-wei.zhang@freescale.com> <1204648202-5495-6-git-send-email-wei.zhang@freescale.com> <1204648202-5495-7-git-send-email-wei.zhang@freescale.com> <1204648202-5495-8-git-send-email-wei.zhang@freescale.com> Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Signed-off-by: Zhang Wei --- arch/powerpc/sysdev/fsl_rio.c | 74 +++++++++++++++++++++++++++++++++++----- include/linux/rio.h | 6 +++ 2 files changed, 70 insertions(+), 10 deletions(-) diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c index 9dae418..1535d12 100644 --- a/arch/powerpc/sysdev/fsl_rio.c +++ b/arch/powerpc/sysdev/fsl_rio.c @@ -21,6 +21,7 @@ #include #include #include +#include #include @@ -30,7 +31,12 @@ #define IRQ_RIO_RX(m) (((struct rio_priv *)(m->priv))->rxirq) #define RIO_ATMU_REGS_OFFSET 0x10c00 -#define RIO_MSG_REGS_OFFSET 0x11000 +#define RIO_P_MSG_REGS_OFFSET 0x11000 +#define RIO_S_MSG_REGS_OFFSET 0x13000 +#define RIO_ESCSR 0x158 +#define RIO_CCSR 0x15c +#define RIO_ISR_AACR 0x10120 +#define RIO_ISR_AACR_AA 0x1 /* Accept All ID */ #define RIO_MAINT_WIN_SIZE 0x400000 #define RIO_DBELL_WIN_SIZE 0x1000 @@ -69,7 +75,7 @@ struct rio_atmu_regs { u32 rowtar; - u32 pad1; + u32 rowtear; u32 rowbar; u32 pad2; u32 rowar; @@ -95,7 +101,15 @@ struct rio_msg_regs { u32 ifqdpar; u32 pad6; u32 ifqepar; - u32 pad7[250]; + u32 pad7[226]; + u32 odmr; + u32 odsr; + u32 res0[4]; + u32 oddpr; + u32 oddatr; + u32 res1[3]; + u32 odretcr; + u32 res2[12]; u32 dmr; u32 dsr; u32 pad8; @@ -175,8 +189,22 @@ static int fsl_rio_doorbell_send(struct rio_mport *mport, struct rio_priv *priv = mport->priv; pr_debug("fsl_doorbell_send: index %d destid %4.4x data %4.4x\n", index, destid, data); - out_be32(&priv->dbell_atmu_regs->rowtar, destid << 22); - out_be16(priv->dbell_win, data); + switch (mport->phy_type) { + case RIO_PHY_PARALLEL: + out_be32(&priv->dbell_atmu_regs->rowtar, destid << 22); + out_be16(priv->dbell_win, data); + break; + case RIO_PHY_SERIAL: + /* In the serial version silicons, such as MPC8548, MPC8641, + * below operations is must be. + */ + out_be32(&priv->msg_regs->odmr, 0x00000000); + out_be32(&priv->msg_regs->odretcr, 0x00000004); + out_be32(&priv->msg_regs->oddpr, destid << 16); + out_be32(&priv->msg_regs->oddatr,data ); + out_be32(&priv->msg_regs->odmr, 0x00000001); + break; + } return 0; } @@ -342,11 +370,22 @@ rio_hw_add_outb_message(struct rio_mport *mport, struct rio_dev *rdev, int mbox, memset(priv->msg_tx_ring.virt_buffer[priv->msg_tx_ring.tx_slot] + len, 0, RIO_MAX_MSG_SIZE - len); - /* Set mbox field for message */ - desc->dport = mbox & 0x3; + switch(mport->phy_type) { + case RIO_PHY_PARALLEL: + /* Set mbox field for message */ + desc->dport = mbox & 0x3; - /* Enable EOMI interrupt, set priority, and set destid */ - desc->dattr = 0x28000000 | (rdev->destid << 2); + /* Enable EOMI interrupt, set priority, and set destid */ + desc->dattr = 0x28000000 | (rdev->destid << 2); + break; + case RIO_PHY_SERIAL: + /* Set mbox field for message, and set destid */ + desc->dport = (rdev->destid << 16) | ( mbox & 0x3); + + /* Enable EOMI interrupt and priority */ + desc->dattr = 0x28000000; + break; + } /* Set transfer size aligned to next power of 2 (in double words) */ desc->dwcnt = is_power_of_2(len) ? len : 1 << get_bitmask_order(len); @@ -923,6 +962,7 @@ int fsl_rio_setup(struct of_device *dev) const u32 *dt_range, *cell; struct resource regs; int rlen; + u32 ccsr; u64 law_start, law_size; int paw, aw, sw; @@ -1011,6 +1051,14 @@ int fsl_rio_setup(struct of_device *dev) priv->regs_win = (u32) ioremap(regs.start, regs.end - regs.start + 1); + /* Probe the master port phy type */ + ccsr = in_be32(priv->regs_win + RIO_CCSR); + port->phy_type = (ccsr & 1) ? RIO_PHY_SERIAL : RIO_PHY_PARALLEL; + dev_info(&dev->dev, "RapidIO PHY type: %s\n", + (port->phy_type == RIO_PHY_PARALLEL) ? "parallel" : + ((port->phy_type == RIO_PHY_SERIAL) ? "serial" : + "unknown")); + port->sys_size = (in_be32((priv->regs_win + RIO_PEF_CAR)) & RIO_PEF_CTLS) >> 4; dev_info(&dev->dev, "RapidIO Common Transport System size: %d\n", @@ -1020,7 +1068,13 @@ int fsl_rio_setup(struct of_device *dev) + RIO_ATMU_REGS_OFFSET); priv->maint_atmu_regs = priv->atmu_regs + 1; priv->dbell_atmu_regs = priv->atmu_regs + 2; - priv->msg_regs = (struct rio_msg_regs *)(priv->regs_win + RIO_MSG_REGS_OFFSET); + priv->msg_regs = (struct rio_msg_regs *)(priv->regs_win + + ((port->phy_type == RIO_PHY_SERIAL) ? + RIO_S_MSG_REGS_OFFSET : RIO_P_MSG_REGS_OFFSET)); + + /* Set to receive any dist ID for serial RapidIO controller. */ + if (port->phy_type == RIO_PHY_SERIAL) + out_be32((priv->regs_win + RIO_ISR_AACR), RIO_ISR_AACR_AA); /* Configure maintenance transaction window */ out_be32(&priv->maint_atmu_regs->rowbar, 0x000c0000); diff --git a/include/linux/rio.h b/include/linux/rio.h index 4b0156d..b96cdf4 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -145,6 +145,11 @@ struct rio_dbell { void *dev_id; }; +enum rio_phy_type { + RIO_PHY_PARALLEL, + RIO_PHY_SERIAL, +}; + /** * struct rio_mport - RIO master port info * @dbells: List of doorbell events @@ -178,6 +183,7 @@ struct rio_mport { * 0 - Small size. 256 devices. * 1 - Large size, 65536 devices. */ + enum rio_phy_type phy_type; /* RapidIO phy type */ unsigned char name[40]; void *priv; /* Master port private data */ }; -- 1.5.4