diff options
Diffstat (limited to 'arch/mips/pci/pci-mt7620.c')
| -rw-r--r-- | arch/mips/pci/pci-mt7620.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/arch/mips/pci/pci-mt7620.c b/arch/mips/pci/pci-mt7620.c index f6b77788124a..5c4bdf6919e5 100644 --- a/arch/mips/pci/pci-mt7620.c +++ b/arch/mips/pci/pci-mt7620.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Ralink MT7620A SoC PCI support * * Copyright (C) 2007-2013 Bruce Chang (Mediatek) * Copyright (C) 2013-2016 John Crispin <john@phrozen.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. */ #include <linux/types.h> @@ -33,6 +30,7 @@ #define RALINK_GPIOMODE 0x60 #define PPLL_CFG1 0x9c +#define PPLL_LD BIT(23) #define PPLL_DRV 0xa0 #define PDRV_SW_SET BIT(31) @@ -242,8 +240,8 @@ static int mt7620_pci_hw_init(struct platform_device *pdev) rt_sysc_m32(0, RALINK_PCIE0_CLK_EN, RALINK_CLKCFG1); mdelay(100); - if (!(rt_sysc_r32(PPLL_CFG1) & PDRV_SW_SET)) { - dev_err(&pdev->dev, "MT7620 PPLL unlock\n"); + if (!(rt_sysc_r32(PPLL_CFG1) & PPLL_LD)) { + dev_err(&pdev->dev, "pcie PLL not locked, aborting init\n"); reset_control_assert(rstpcie0); rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1); return -1; @@ -276,29 +274,22 @@ static int mt7628_pci_hw_init(struct platform_device *pdev) val |= 0x50 << 8; pci_config_write(NULL, 0, 0x70c, 4, val); - pci_config_read(NULL, 0, 0x70c, 4, &val); - dev_err(&pdev->dev, "Port 0 N_FTS = %x\n", (unsigned int) val); - return 0; } static int mt7620_pci_probe(struct platform_device *pdev) { - struct resource *bridge_res = platform_get_resource(pdev, - IORESOURCE_MEM, 0); - struct resource *pcie_res = platform_get_resource(pdev, - IORESOURCE_MEM, 1); u32 val = 0; rstpcie0 = devm_reset_control_get_exclusive(&pdev->dev, "pcie0"); if (IS_ERR(rstpcie0)) return PTR_ERR(rstpcie0); - bridge_base = devm_ioremap_resource(&pdev->dev, bridge_res); + bridge_base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL); if (IS_ERR(bridge_base)) return PTR_ERR(bridge_base); - pcie_base = devm_ioremap_resource(&pdev->dev, pcie_res); + pcie_base = devm_platform_get_and_ioremap_resource(pdev, 1, NULL); if (IS_ERR(pcie_base)) return PTR_ERR(pcie_base); @@ -336,7 +327,7 @@ static int mt7620_pci_probe(struct platform_device *pdev) rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1); if (ralink_soc == MT762X_SOC_MT7620A) rt_sysc_m32(LC_CKDRVPD, PDRV_SW_SET, PPLL_DRV); - dev_err(&pdev->dev, "PCIE0 no card, disable it(RST&CLK)\n"); + dev_info(&pdev->dev, "PCIE0 no card, disable it(RST&CLK)\n"); return -1; } @@ -379,7 +370,7 @@ int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) dev->bus->number, slot); return 0; } - dev_err(&dev->dev, "card - bus=0x%x, slot = 0x%x irq=%d\n", + dev_info(&dev->dev, "card - bus=0x%x, slot = 0x%x irq=%d\n", dev->bus->number, slot, irq); /* configure the cache line size to 0x14 */ |