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fsl/fman: don't touch liodn base regs reserved on non-PAMU SoCs 

The liodn base registers are specific to PAMU based NXP systems and are
reserved on SMMU based ones. Don't access them unless PAMU is compiled in.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Laurentiu Tudor 2019-10-23 12:08:40 +03:00 committed by David S. Miller
parent fb8d1d7e3d
commit 9b56beed1e
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/freescale/fman/fman.c
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@ -634,6 +634,9 @@ static void set_port_liodn(struct fman *fman, u8 port_id,
{
u32 tmp;
iowrite32be(liodn_ofst, &fman->bmi_regs->fmbm_spliodn[port_id - 1]);
if (!IS_ENABLED(CONFIG_FSL_PAMU))
return;
/* set LIODN base for this port */
tmp = ioread32be(&fman->dma_regs->fmdmplr[port_id / 2]);
if (port_id % 2) {
@ -644,7 +647,6 @@ static void set_port_liodn(struct fman *fman, u8 port_id,
tmp |= liodn_base << DMA_LIODN_SHIFT;
}
iowrite32be(tmp, &fman->dma_regs->fmdmplr[port_id / 2]);
iowrite32be(liodn_ofst, &fman->bmi_regs->fmbm_spliodn[port_id - 1]);
}
static void enable_rams_ecc(struct fman_fpm_regs __iomem *fpm_rg)
@ -1942,6 +1944,8 @@ static int fman_init(struct fman *fman)
fman->liodn_offset[i] =
ioread32be(&fman->bmi_regs->fmbm_spliodn[i - 1]);
if (!IS_ENABLED(CONFIG_FSL_PAMU))
continue;
liodn_base = ioread32be(&fman->dma_regs->fmdmplr[i / 2]);
if (i % 2) {
/* FMDM_PLR LSB holds LIODN base for odd ports */