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XMC7 full working example

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robert committed 2024-04-22 03:15:10 -04:00
1 parent 312ca8e978
commit 70abd1f98d
18 files changed
+1156
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src/drivers/phy.c
+18
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@@ -45,6 +45,20 @@ static const char *mg_phy_id_to_str(uint16_t id1, uint16_t id2) {
(void) id2;
}
static void mg_phy_set_clk_out(struct mg_phy *phy, uint8_t phy_addr) {
uint16_t id1, id2;
id1 = phy->read_reg(phy_addr, MG_PHY_REG_ID1);
id2 = phy->read_reg(phy_addr, MG_PHY_REG_ID2);
if (id1 == MG_PHY_DP83x && id2 == MG_PHY_DP83867) {
// write 0x10d to IO_MUX_CFG (0x0170)
phy->write_reg(phy_addr, 0x0d, 0x1f);
phy->write_reg(phy_addr, 0x0e, 0x170);
phy->write_reg(phy_addr, 0x0d, 0x401f);
phy->write_reg(phy_addr, 0x0e, 0x10d);
}
}
void mg_phy_init(struct mg_phy *phy, uint8_t phy_addr, uint8_t config) {
uint16_t id1, id2;
phy->write_reg(phy_addr, MG_PHY_REG_BCR, MG_BIT(15)); // Reset PHY
@@ -54,6 +68,10 @@ void mg_phy_init(struct mg_phy *phy, uint8_t phy_addr, uint8_t config) {
id2 = phy->read_reg(phy_addr, MG_PHY_REG_ID2);
MG_INFO(("PHY ID: %#04x %#04x (%s)", id1, id2, mg_phy_id_to_str(id1, id2)));
if (id1 == MG_PHY_DP83x && id2 == MG_PHY_DP83867) {
mg_phy_set_clk_out(phy, phy_addr);
}
if (config & MG_PHY_CLOCKS_MAC) {
// Use PHY crystal oscillator (preserve defaults)
// nothing to do