Tom Rini
10 years ago
commit
0d3f732fd2
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# This is an example file to generate boot.scr - a boot script for U-Boot |
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# Generate boot.scr: |
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# ./tools/mkimage -c none -A arm -T script -d autoboot.cmd boot.scr |
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# |
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# It requires a list of environment variables to be defined before load: |
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# platform dependent: boardname, fdtfile, console |
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# system dependent: mmcbootdev, mmcbootpart, mmcrootdev, mmcrootpart, rootfstype |
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# |
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setenv fdtaddr "40800000" |
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setenv initrdname "uInitrd" |
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setenv initrdaddr "42000000" |
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setenv loaddtb "load mmc ${mmcbootdev}:${mmcbootpart} ${fdtaddr} ${fdtfile}" |
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setenv loadinitrd "load mmc ${mmcbootdev}:${mmcbootpart} ${initrdaddr} ${initrdname}" |
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setenv loadkernel "load mmc ${mmcbootdev}:${mmcbootpart} '${kerneladdr}' '${kernelname}'" |
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setenv kernel_args "setenv bootargs ${console} root=/dev/mmcblk${mmcrootdev}p${mmcrootpart} rootfstype=${rootfstype} rootwait ${opts}" |
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|
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#### Routine: check_dtb - check that target.dtb exists on boot partition |
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setenv check_dtb " |
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if test -e mmc '${mmcbootdev}':'${mmcbootpart}' '${fdtfile}'; then |
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run loaddtb; |
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setenv fdt_addr ${fdtaddr}; |
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else |
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echo Warning! Booting without DTB: '${fdtfile}'!; |
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setenv fdt_addr; |
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fi;" |
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|
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#### Routine: check_ramdisk - check that uInitrd exists on boot partition |
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setenv check_ramdisk " |
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if test -e mmc '${mmcbootdev}':'${mmcbootpart}' '${initrdname}'; then |
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echo "Found ramdisk image."; |
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run loadinitrd; |
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setenv initrd_addr ${initrdaddr}; |
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else |
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echo Warning! Booting without RAMDISK: '${initrdname}'!; |
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setenv initrd_addr -; |
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fi;" |
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|
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#### Routine: boot_fit - check that env $boardname is set and boot proper config of ITB image |
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setenv setboot_fit " |
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if test -e '${boardname}'; then |
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setenv fdt_addr ; |
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setenv initrd_addr ; |
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setenv kerneladdr 0x42000000; |
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setenv kernelname Image.itb; |
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setenv itbcfg \#'${boardname}'; |
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setenv imgbootcmd bootm; |
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else |
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echo Warning! Variable: \$boardname is undefined!; |
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fi" |
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|
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#### Routine: setboot_uimg - prepare env to boot uImage |
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setenv setboot_uimg " |
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setenv kerneladdr 0x40007FC0; |
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setenv kernelname uImage; |
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setenv itbcfg ; |
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setenv imgbootcmd bootm; |
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run check_dtb; |
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run check_ramdisk;" |
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|
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#### Routine: setboot_zimg - prepare env to boot zImage |
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setenv setboot_zimg " |
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setenv kerneladdr 0x40007FC0; |
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setenv kernelname zImage; |
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setenv itbcfg ; |
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setenv imgbootcmd bootz; |
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run check_dtb; |
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run check_ramdisk;" |
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|
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#### Routine: boot_img - boot the kernel after env setup |
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setenv boot_img " |
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run loadkernel; |
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run kernel_args; |
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'${imgbootcmd}' '${kerneladdr}${itbcfg}' '${initrd_addr}' '${fdt_addr}';" |
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|
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#### Routine: autoboot - choose proper boot path |
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setenv autoboot " |
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if test -e mmc 0:${mmcbootpart} Image.itb; then |
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echo Found kernel image: Image.itb; |
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run setboot_fit; |
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run boot_img; |
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elif test -e mmc 0:${mmcbootpart} zImage; then |
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echo Found kernel image: zImage; |
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run setboot_zimg; |
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run boot_img; |
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elif test -e mmc 0:${mmcbootpart} uImage; then |
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echo Found kernel image: uImage; |
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run setboot_uimg; |
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run boot_img; |
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fi;" |
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|
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#### Execute the defined autoboot macro |
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run autoboot |
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@ -0,0 +1,10 @@ |
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setenv kernelname zImage; |
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setenv boot_kernel "setenv bootargs \"${console} root=/dev/mmcblk${mmcrootdev}p${mmcrootpart} rootfstype=${rootfstype} rootwait ${opts}\"; |
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load mmc ${mmcbootdev}:${mmcbootpart} 0x40007FC0 '${kernelname}'; |
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if load mmc ${mmcbootdev}:${mmcbootpart} 40800000 ${fdtfile}; then |
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bootz 0x40007FC0 - 40800000; |
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else |
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echo Warning! Booting without DTB: '${fdtfile}'!; |
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bootz 0x40007FC0 -; |
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fi;" |
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run boot_kernel; |
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@ -0,0 +1,78 @@ |
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/**
|
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* samsung_usb_phy.c - DesignWare USB3 (DWC3) PHY handling file |
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* |
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* Copyright (C) 2015 Samsung Electronics |
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* |
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* Author: Joonyoung Shim <jy0922.shim@samsung.com> |
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* |
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* SPDX-License-Identifier: GPL-2.0 |
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*/ |
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|
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#include <common.h> |
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#include <asm/arch/power.h> |
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#include <asm/arch/xhci-exynos.h> |
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|
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void exynos5_usb3_phy_init(struct exynos_usb3_phy *phy) |
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{ |
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u32 reg; |
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|
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/* Reset USB 3.0 PHY */ |
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writel(0x0, &phy->phy_reg0); |
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|
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clrbits_le32(&phy->phy_param0, |
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/* Select PHY CLK source */ |
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PHYPARAM0_REF_USE_PAD | |
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/* Set Loss-of-Signal Detector sensitivity */ |
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PHYPARAM0_REF_LOSLEVEL_MASK); |
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setbits_le32(&phy->phy_param0, PHYPARAM0_REF_LOSLEVEL); |
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|
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|
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writel(0x0, &phy->phy_resume); |
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|
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/*
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* Setting the Frame length Adj value[6:1] to default 0x20 |
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* See xHCI 1.0 spec, 5.2.4 |
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*/ |
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setbits_le32(&phy->link_system, |
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LINKSYSTEM_XHCI_VERSION_CONTROL | |
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LINKSYSTEM_FLADJ(0x20)); |
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|
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/* Set Tx De-Emphasis level */ |
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clrbits_le32(&phy->phy_param1, PHYPARAM1_PCS_TXDEEMPH_MASK); |
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setbits_le32(&phy->phy_param1, PHYPARAM1_PCS_TXDEEMPH); |
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setbits_le32(&phy->phy_batchg, PHYBATCHG_UTMI_CLKSEL); |
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|
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/* PHYTEST POWERDOWN Control */ |
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clrbits_le32(&phy->phy_test, |
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PHYTEST_POWERDOWN_SSP | |
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PHYTEST_POWERDOWN_HSP); |
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|
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/* UTMI Power Control */ |
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writel(PHYUTMI_OTGDISABLE, &phy->phy_utmi); |
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/* Use core clock from main PLL */ |
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reg = PHYCLKRST_REFCLKSEL_EXT_REFCLK | |
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/* Default 24Mhz crystal clock */ |
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PHYCLKRST_FSEL(FSEL_CLKSEL_24M) | |
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PHYCLKRST_MPLL_MULTIPLIER_24MHZ_REF | |
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PHYCLKRST_SSC_REFCLKSEL(0) | |
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/* Force PortReset of PHY */ |
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PHYCLKRST_PORTRESET | |
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/* Digital power supply in normal operating mode */ |
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PHYCLKRST_RETENABLEN | |
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/* Enable ref clock for SS function */ |
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PHYCLKRST_REF_SSP_EN | |
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/* Enable spread spectrum */ |
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PHYCLKRST_SSC_EN | |
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/* Power down HS Bias and PLL blocks in suspend mode */ |
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PHYCLKRST_COMMONONN; |
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writel(reg, &phy->phy_clk_rst); |
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/* giving time to Phy clock to settle before resetting */ |
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udelay(10); |
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reg &= ~PHYCLKRST_PORTRESET; |
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writel(reg, &phy->phy_clk_rst); |
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} |
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@ -0,0 +1,16 @@ |
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/* include/samsung-usb-phy-uboot.h
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* |
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* Copyright (c) 2015 Samsung Electronics |
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* |
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* USB3 (DWC3) PHY uboot init |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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|
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#ifndef __SAMSUNG_USB_PHY_UBOOT_H_ |
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#define __SAMSUNG_USB_PHY_UBOOT_H_ |
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|
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#include <asm/arch/xhci-exynos.h> |
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|
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void exynos5_usb3_phy_init(struct exynos_usb3_phy *phy); |
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#endif /* __SAMSUNG_USB_PHY_UBOOT_H_ */ |
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