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| author | Aaron Sierra <asierra@xes-inc.com> | 2014-08-26 18:18:33 -0500 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2014-11-05 14:45:53 -0800 |
| commit | 096916610f415e07cfe71d71a391011c617be5ed (patch) | |
| tree | 0e2c9596200462aff4a267607a134ba16f308d95 /drivers/memory | |
| parent | abb1cd00e6b7434e866f1f817b4994e1c7f1f16d (diff) | |
| download | linux-096916610f415e07cfe71d71a391011c617be5ed.tar.gz linux-096916610f415e07cfe71d71a391011c617be5ed.tar.bz2 linux-096916610f415e07cfe71d71a391011c617be5ed.zip | |
fsl_ifc: Support all 8 IFC chip selects
Freescale's QorIQ T Series processors support 8 IFC chip selects
within a memory map backward compatible with previous P Series
processors which supported only 4 chip selects.
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/fsl_ifc.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/memory/fsl_ifc.c b/drivers/memory/fsl_ifc.c index 3d5d792d5cb2..410c39749872 100644 --- a/drivers/memory/fsl_ifc.c +++ b/drivers/memory/fsl_ifc.c @@ -61,7 +61,7 @@ int fsl_ifc_find(phys_addr_t addr_base) if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->regs) return -ENODEV; - for (i = 0; i < ARRAY_SIZE(fsl_ifc_ctrl_dev->regs->cspr_cs); i++) { + for (i = 0; i < fsl_ifc_ctrl_dev->banks; i++) { u32 cspr = in_be32(&fsl_ifc_ctrl_dev->regs->cspr_cs[i].cspr); if (cspr & CSPR_V && (cspr & CSPR_BA) == convert_ifc_address(addr_base)) @@ -213,7 +213,7 @@ static irqreturn_t fsl_ifc_ctrl_irq(int irqno, void *data) static int fsl_ifc_ctrl_probe(struct platform_device *dev) { int ret = 0; - + int version, banks; dev_info(&dev->dev, "Freescale Integrated Flash Controller\n"); @@ -231,6 +231,15 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev) goto err; } + version = ioread32be(&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; + /* get the Controller level irq */ fsl_ifc_ctrl_dev->irq = irq_of_parse_and_map(dev->dev.of_node, 0); if (fsl_ifc_ctrl_dev->irq == NO_IRQ) { |