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path: root/kernel/drivers/memory/fsl_ifc.c
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Diffstat (limited to 'kernel/drivers/memory/fsl_ifc.c')
-rw-r--r--kernel/drivers/memory/fsl_ifc.c44
1 files changed, 31 insertions, 13 deletions
diff --git a/kernel/drivers/memory/fsl_ifc.c b/kernel/drivers/memory/fsl_ifc.c
index 410c39749..acd1460cf 100644
--- a/kernel/drivers/memory/fsl_ifc.c
+++ b/kernel/drivers/memory/fsl_ifc.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/compiler.h>
+#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/slab.h>
@@ -62,7 +63,7 @@ int fsl_ifc_find(phys_addr_t addr_base)
return -ENODEV;
for (i = 0; i < fsl_ifc_ctrl_dev->banks; i++) {
- u32 cspr = in_be32(&fsl_ifc_ctrl_dev->regs->cspr_cs[i].cspr);
+ u32 cspr = ifc_in32(&fsl_ifc_ctrl_dev->regs->cspr_cs[i].cspr);
if (cspr & CSPR_V && (cspr & CSPR_BA) ==
convert_ifc_address(addr_base))
return i;
@@ -79,16 +80,16 @@ static int fsl_ifc_ctrl_init(struct fsl_ifc_ctrl *ctrl)
/*
* Clear all the common status and event registers
*/
- if (in_be32(&ifc->cm_evter_stat) & IFC_CM_EVTER_STAT_CSER)
- out_be32(&ifc->cm_evter_stat, IFC_CM_EVTER_STAT_CSER);
+ if (ifc_in32(&ifc->cm_evter_stat) & IFC_CM_EVTER_STAT_CSER)
+ ifc_out32(IFC_CM_EVTER_STAT_CSER, &ifc->cm_evter_stat);
/* enable all error and events */
- out_be32(&ifc->cm_evter_en, IFC_CM_EVTER_EN_CSEREN);
+ ifc_out32(IFC_CM_EVTER_EN_CSEREN, &ifc->cm_evter_en);
/* enable all error and event interrupts */
- out_be32(&ifc->cm_evter_intr_en, IFC_CM_EVTER_INTR_EN_CSERIREN);
- out_be32(&ifc->cm_erattr0, 0x0);
- out_be32(&ifc->cm_erattr1, 0x0);
+ ifc_out32(IFC_CM_EVTER_INTR_EN_CSERIREN, &ifc->cm_evter_intr_en);
+ ifc_out32(0x0, &ifc->cm_erattr0);
+ ifc_out32(0x0, &ifc->cm_erattr1);
return 0;
}
@@ -127,9 +128,9 @@ static u32 check_nand_stat(struct fsl_ifc_ctrl *ctrl)
spin_lock_irqsave(&nand_irq_lock, flags);
- stat = in_be32(&ifc->ifc_nand.nand_evter_stat);
+ stat = ifc_in32(&ifc->ifc_nand.nand_evter_stat);
if (stat) {
- out_be32(&ifc->ifc_nand.nand_evter_stat, stat);
+ ifc_out32(stat, &ifc->ifc_nand.nand_evter_stat);
ctrl->nand_stat = stat;
wake_up(&ctrl->nand_wait);
}
@@ -161,16 +162,16 @@ static irqreturn_t fsl_ifc_ctrl_irq(int irqno, void *data)
irqreturn_t ret = IRQ_NONE;
/* read for chip select error */
- cs_err = in_be32(&ifc->cm_evter_stat);
+ cs_err = ifc_in32(&ifc->cm_evter_stat);
if (cs_err) {
dev_err(ctrl->dev, "transaction sent to IFC is not mapped to"
"any memory bank 0x%08X\n", cs_err);
/* clear the chip select error */
- out_be32(&ifc->cm_evter_stat, IFC_CM_EVTER_STAT_CSER);
+ ifc_out32(IFC_CM_EVTER_STAT_CSER, &ifc->cm_evter_stat);
/* read error attribute registers print the error information */
- status = in_be32(&ifc->cm_erattr0);
- err_addr = in_be32(&ifc->cm_erattr1);
+ status = ifc_in32(&ifc->cm_erattr0);
+ err_addr = ifc_in32(&ifc->cm_erattr1);
if (status & IFC_CM_ERATTR0_ERTYP_READ)
dev_err(ctrl->dev, "Read transaction error"
@@ -231,6 +232,23 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
goto err;
}
+ version = ifc_in32(&fsl_ifc_ctrl_dev->regs->ifc_rev) &
+ FSL_IFC_VERSION_MASK;
+ banks = (version == FSL_IFC_VERSION_1_0_0) ? 4 : 8;
+ dev_info(&dev->dev, "IFC version %d.%d, %d banks\n",
+ version >> 24, (version >> 16) & 0xf, banks);
+
+ fsl_ifc_ctrl_dev->version = version;
+ fsl_ifc_ctrl_dev->banks = banks;
+
+ if (of_property_read_bool(dev->dev.of_node, "little-endian")) {
+ fsl_ifc_ctrl_dev->little_endian = true;
+ dev_dbg(&dev->dev, "IFC REGISTERS are LITTLE endian\n");
+ } else {
+ fsl_ifc_ctrl_dev->little_endian = false;
+ dev_dbg(&dev->dev, "IFC REGISTERS are BIG endian\n");
+ }
+
version = ioread32be(&fsl_ifc_ctrl_dev->regs->ifc_rev) &
FSL_IFC_VERSION_MASK;
banks = (version == FSL_IFC_VERSION_1_0_0) ? 4 : 8;