diff options
Diffstat (limited to 'arch/powerpc/sysdev/fsl_rio.c')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_rio.c | 75 |
1 files changed, 64 insertions, 11 deletions
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c index 14c106cf4aa..935822a2503 100644 --- a/arch/powerpc/sysdev/fsl_rio.c +++ b/arch/powerpc/sysdev/fsl_rio.c @@ -21,6 +21,7 @@ #include <linux/rio.h> #include <linux/rio_drv.h> #include <linux/of_platform.h> +#include <linux/delay.h> #include <asm/io.h> @@ -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); @@ -920,6 +959,7 @@ 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; @@ -1008,6 +1048,14 @@ int fsl_rio_setup(struct of_device *dev) priv->regs_win = 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", @@ -1017,8 +1065,13 @@ 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); |