diff options
Diffstat (limited to 'target/linux/lantiq/patches-5.4/0051-MIPS-lantiq-improve-USB-initialization.patch')
| -rw-r--r-- | target/linux/lantiq/patches-5.4/0051-MIPS-lantiq-improve-USB-initialization.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-5.4/0051-MIPS-lantiq-improve-USB-initialization.patch b/target/linux/lantiq/patches-5.4/0051-MIPS-lantiq-improve-USB-initialization.patch new file mode 100644 index 0000000000..a7bdafd704 --- /dev/null +++ b/target/linux/lantiq/patches-5.4/0051-MIPS-lantiq-improve-USB-initialization.patch @@ -0,0 +1,49 @@ +From 14909c4e4e836925668e74fc6e0e85ba0283cbf9 Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens <hauke@hauke-m.de> +Date: Fri, 6 Jan 2017 17:40:12 +0100 +Subject: [PATCH 2/2] MIPS: lantiq: improve USB initialization + +This adds code to initialize the USB controller and PHY also on Danube, +Amazon SE and AR10. This code is based on the Vendor driver from +different UGW versions and compared to the hardware documentation. + +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +--- + arch/mips/lantiq/xway/sysctrl.c | 20 +++++++ + 2 files changed, 110 insertions(+), 30 deletions(-) + + +--- a/arch/mips/lantiq/xway/sysctrl.c ++++ b/arch/mips/lantiq/xway/sysctrl.c +@@ -246,6 +246,25 @@ static void pmu_disable(struct clk *clk) + pr_warn("deactivating PMU module failed!"); + } + ++static void usb_set_clock(void) ++{ ++ unsigned int val = ltq_cgu_r32(ifccr); ++ ++ if (of_machine_is_compatible("lantiq,ar10") || ++ of_machine_is_compatible("lantiq,grx390")) { ++ val &= ~0x03; /* XTAL divided by 3 */ ++ } else if (of_machine_is_compatible("lantiq,ar9") || ++ of_machine_is_compatible("lantiq,vr9")) { ++ /* TODO: this depends on the XTAL frequency */ ++ val |= 0x03; /* XTAL divided by 3 */ ++ } else if (of_machine_is_compatible("lantiq,ase")) { ++ val |= 0x20; /* from XTAL */ ++ } else if (of_machine_is_compatible("lantiq,danube")) { ++ val |= 0x30; /* 12 MHz, generated from 36 MHz */ ++ } ++ ltq_cgu_w32(val, ifccr); ++} ++ + /* the pci enable helper */ + static int pci_enable(struct clk *clk) + { +@@ -567,4 +586,5 @@ void __init ltq_soc_init(void) + clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE); + clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0); + } ++ usb_set_clock(); + } |