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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
174 lines
3.8 KiB
C
174 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2017 Linaro
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* Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
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*/
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#include <dm.h>
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#include <common.h>
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#include <asm/io.h>
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#include <dm/platform_data/serial_pl01x.h>
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#include <asm/arch/hi3798cv200.h>
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#include <asm/arch/dwmmc.h>
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#include <asm/armv8/mmu.h>
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DECLARE_GLOBAL_DATA_PTR;
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static struct mm_region poplar_mem_map[] = {
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{
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.virt = 0x0UL,
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.phys = 0x0UL,
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.size = 0x80000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
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PTE_BLOCK_INNER_SHARE
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}, {
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.virt = 0x80000000UL,
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.phys = 0x80000000UL,
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.size = 0x80000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
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PTE_BLOCK_NON_SHARE |
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PTE_BLOCK_PXN | PTE_BLOCK_UXN
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}, {
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0,
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}
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};
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struct mm_region *mem_map = poplar_mem_map;
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static const struct pl01x_serial_platdata serial_platdata = {
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.base = REG_BASE_UART0,
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.type = TYPE_PL010,
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.clock = 75000000,
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};
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U_BOOT_DEVICE(poplar_serial) = {
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.name = "serial_pl01x",
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.platdata = &serial_platdata,
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};
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int checkboard(void)
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{
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puts("BOARD: Hisilicon HI3798cv200 Poplar\n");
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return 0;
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}
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void reset_cpu(ulong addr)
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{
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psci_system_reset();
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}
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int dram_init(void)
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{
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gd->ram_size = get_ram_size(NULL, 0x80000000);
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return 0;
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}
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/*
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* Some linux kernel versions don't use memory before its load address, so to
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* be generic we just pretend it isn't there. In previous uboot versions we
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* carved the space used by BL31 (runs in DDR on this platfomr) so the PSCI code
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* could persist in memory and be left alone by the kernel.
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*
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* That led to a problem when mapping memory in older kernels. That PSCI code
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* now lies in memory below the kernel load offset; it therefore won't be
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* touched by the kernel, and by not specially reserving it we avoid the mapping
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* problem as well.
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*
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*/
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#define KERNEL_TEXT_OFFSET 0x00080000
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int dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = KERNEL_TEXT_OFFSET;
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gd->bd->bi_dram[0].size = gd->ram_size - gd->bd->bi_dram[0].start;
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return 0;
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}
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static void usb2_phy_config(void)
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{
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const u32 config[] = {
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/* close EOP pre-emphasis. open data pre-emphasis */
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0xa1001c,
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/* Rcomp = 150mW, increase DC level */
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0xa00607,
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/* keep Rcomp working */
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0xa10700,
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/* Icomp = 212mW, increase current drive */
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0xa00aab,
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/* EMI fix: rx_active not stay 1 when error packets received */
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0xa11140,
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/* Comp mode select */
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0xa11041,
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/* adjust eye diagram */
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0xa0098c,
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/* adjust eye diagram */
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0xa10a0a,
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};
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int i;
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for (i = 0; i < ARRAY_SIZE(config); i++) {
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writel(config[i], PERI_CTRL_USB0);
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clrsetbits_le32(PERI_CTRL_USB0, BIT(21), BIT(20) | BIT(22));
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udelay(20);
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}
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}
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static void usb2_phy_init(void)
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{
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/* reset usb2 controller bus/utmi/roothub */
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setbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ |
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USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ);
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udelay(200);
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/* reset usb2 phy por/utmi */
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setbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ | USB2_PHY01_SRST_TREQ1);
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udelay(200);
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/* open usb2 ref clk */
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setbits_le32(PERI_CRG47, USB2_PHY01_REF_CKEN);
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udelay(300);
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/* cancel usb2 power on reset */
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clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ);
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udelay(500);
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usb2_phy_config();
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/* cancel usb2 port reset, wait comp circuit stable */
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clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_TREQ1);
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mdelay(10);
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/* open usb2 controller clk */
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setbits_le32(PERI_CRG46, USB2_BUS_CKEN | USB2_OHCI48M_CKEN |
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USB2_OHCI12M_CKEN | USB2_OTG_UTMI_CKEN |
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USB2_HST_PHY_CKEN | USB2_UTMI0_CKEN);
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udelay(200);
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/* cancel usb2 control reset */
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clrbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ |
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USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ);
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udelay(200);
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}
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int board_mmc_init(bd_t *bis)
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{
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int ret;
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ret = hi6220_dwmci_add_port(0, REG_BASE_MCI, 8);
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if (ret)
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printf("mmc init error (%d)\n", ret);
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return ret;
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}
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int board_init(void)
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{
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usb2_phy_init();
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return 0;
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}
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