fsl/fman: A007273 only applies to PPC SoCs (1e330995) · Commits · 戴 / test

drivers/net/ethernet/freescale/fman/fman.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1890,6 +1890,7 @@ static int fman_reset(struct fman *fman)

		goto _return;
		} else {
		#ifdef CONFIG_PPC
		struct device_node *guts_node;
		struct ccsr_guts __iomem *guts_regs;
		u32 devdisr2, reg;
		@@ -1921,6 +1922,7 @@ static int fman_reset(struct fman *fman)

		/* Enable all MACs */
		iowrite32be(reg, &guts_regs->devdisr2);
		#endif

		/* Perform FMan reset */
		iowrite32be(FPM_RSTC_FM_RESET, &fman->fpm_regs->fm_rstc);
		@@ -1932,25 +1934,31 @@ static int fman_reset(struct fman *fman)
		} while (((ioread32be(&fman->fpm_regs->fm_rstc)) &
		FPM_RSTC_FM_RESET) && --count);
		if (count == 0) {
		#ifdef CONFIG_PPC
		iounmap(guts_regs);
		of_node_put(guts_node);
		#endif
		err = -EBUSY;
		goto _return;
		}
		#ifdef CONFIG_PPC

		/* Restore devdisr2 value */
		iowrite32be(devdisr2, &guts_regs->devdisr2);

		iounmap(guts_regs);
		of_node_put(guts_node);
		#endif

		goto _return;

		#ifdef CONFIG_PPC
		guts_regs:
		of_node_put(guts_node);
		guts_node:
		dev_dbg(fman->dev, "%s: Didn't perform FManV3 reset due to Errata A007273!\n",
		__func__);
		#endif
		}
		_return:
		return err;