mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 10:46:15 +09:00
83d290c56f
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>
122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* CPSW common - libs used across TI ethernet devices.
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*
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* Copyright (C) 2016, Texas Instruments, Incorporated
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*/
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#include <common.h>
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#include <dm.h>
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#include <environment.h>
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#include <fdt_support.h>
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#include <asm/io.h>
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#include <cpsw.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define CTRL_MAC_REG(offset, id) ((offset) + 0x8 * (id))
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static int davinci_emac_3517_get_macid(struct udevice *dev, u16 offset,
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int slave, u8 *mac_addr)
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{
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void *fdt = (void *)gd->fdt_blob;
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int node = dev_of_offset(dev);
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u32 macid_lsb;
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u32 macid_msb;
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fdt32_t gmii = 0;
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int syscon;
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u32 addr;
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syscon = fdtdec_lookup_phandle(fdt, node, "syscon");
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if (syscon < 0) {
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pr_err("Syscon offset not found\n");
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return -ENOENT;
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}
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addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii),
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sizeof(u32), MAP_NOCACHE);
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if (addr == FDT_ADDR_T_NONE) {
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pr_err("Not able to get syscon address to get mac efuse address\n");
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return -ENOENT;
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}
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addr += CTRL_MAC_REG(offset, slave);
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/* try reading mac address from efuse */
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macid_lsb = readl(addr);
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macid_msb = readl(addr + 4);
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mac_addr[0] = (macid_msb >> 16) & 0xff;
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mac_addr[1] = (macid_msb >> 8) & 0xff;
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mac_addr[2] = macid_msb & 0xff;
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mac_addr[3] = (macid_lsb >> 16) & 0xff;
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mac_addr[4] = (macid_lsb >> 8) & 0xff;
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mac_addr[5] = macid_lsb & 0xff;
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return 0;
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}
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static int cpsw_am33xx_cm_get_macid(struct udevice *dev, u16 offset, int slave,
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u8 *mac_addr)
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{
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void *fdt = (void *)gd->fdt_blob;
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int node = dev_of_offset(dev);
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u32 macid_lo;
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u32 macid_hi;
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fdt32_t gmii = 0;
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int syscon;
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u32 addr;
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syscon = fdtdec_lookup_phandle(fdt, node, "syscon");
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if (syscon < 0) {
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pr_err("Syscon offset not found\n");
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return -ENOENT;
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}
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addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii),
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sizeof(u32), MAP_NOCACHE);
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if (addr == FDT_ADDR_T_NONE) {
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pr_err("Not able to get syscon address to get mac efuse address\n");
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return -ENOENT;
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}
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addr += CTRL_MAC_REG(offset, slave);
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/* try reading mac address from efuse */
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macid_lo = readl(addr);
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macid_hi = readl(addr + 4);
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mac_addr[5] = (macid_lo >> 8) & 0xff;
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mac_addr[4] = macid_lo & 0xff;
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mac_addr[3] = (macid_hi >> 24) & 0xff;
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mac_addr[2] = (macid_hi >> 16) & 0xff;
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mac_addr[1] = (macid_hi >> 8) & 0xff;
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mac_addr[0] = macid_hi & 0xff;
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return 0;
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}
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int ti_cm_get_macid(struct udevice *dev, int slave, u8 *mac_addr)
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{
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if (of_machine_is_compatible("ti,dm8148"))
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return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
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if (of_machine_is_compatible("ti,am33xx"))
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return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
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if (device_is_compatible(dev, "ti,am3517-emac"))
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return davinci_emac_3517_get_macid(dev, 0x110, slave, mac_addr);
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if (device_is_compatible(dev, "ti,dm816-emac"))
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return cpsw_am33xx_cm_get_macid(dev, 0x30, slave, mac_addr);
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if (of_machine_is_compatible("ti,am43"))
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return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
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if (of_machine_is_compatible("ti,dra7"))
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return davinci_emac_3517_get_macid(dev, 0x514, slave, mac_addr);
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dev_err(dev, "incompatible machine/device type for reading mac address\n");
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return -ENOENT;
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}
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