ramips: switch to linux 4.14
[openwrt/openwrt.git] / target / linux / ramips / patches-4.9 / 999-fix-pci-init-mt7620.patch
1 --- a/arch/mips/pci/pci-mt7620.c
2 +++ b/arch/mips/pci/pci-mt7620.c
3 @@ -35,6 +35,7 @@
4 #define PPLL_CFG1 0x9c
5
6 #define PPLL_DRV 0xa0
7 +#define PPLL_LD (1<<23)
8 #define PDRV_SW_SET (1<<31)
9 #define LC_CKDRVPD (1<<19)
10 #define LC_CKDRVOHZ (1<<18)
11 @@ -242,8 +243,8 @@ static int mt7620_pci_hw_init(struct pla
12 rt_sysc_m32(0, RALINK_PCIE0_CLK_EN, RALINK_CLKCFG1);
13 mdelay(100);
14
15 - if (!(rt_sysc_r32(PPLL_CFG1) & PDRV_SW_SET)) {
16 - dev_err(&pdev->dev, "MT7620 PPLL unlock\n");
17 + if (!(rt_sysc_r32(PPLL_CFG1) & PPLL_LD)) {
18 + dev_err(&pdev->dev, "MT7620 PPLL is unlocked, aborting init\n");
19 reset_control_assert(rstpcie0);
20 rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1);
21 return -1;