7fcd4d58ec
This renames bus to upstream and link_list to downstream. Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Change-Id: I80a81b6b8606e450ff180add9439481ec28c2420 Reviewed-on: https://review.coreboot.org/c/coreboot/+/78330 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <console/console.h>
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#include <device/device.h>
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#include <device/mdio.h>
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#include <device/pci.h>
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#include "chip.h"
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#include "m88e1512.h"
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static void switch_page(struct device *dev, uint8_t page)
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{
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mdio_write(dev, PAGE_REG, page);
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}
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static void m88e1512_init(struct device *dev)
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{
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struct drivers_net_phy_m88e1512_config *config = dev->chip_info;
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uint16_t reg;
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/* Enable downshift. */
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if (config->downshift_cnt) {
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if (config->downshift_cnt > DOWNSHIFT_CNT_MAX) {
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printk(BIOS_INFO, "%s: Downshift counter for %s is too large.\n",
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dev_path(dev->upstream->dev), dev->chip_ops->name);
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} else {
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printk(BIOS_DEBUG, "%s: Enable downshift after %d attempts for %s.\n",
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dev_path(dev->upstream->dev), config->downshift_cnt,
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dev->chip_ops->name);
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reg = mdio_read(dev, COPPER_SPEC_CTRL_REG_1);
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clrsetbits16(®, DOWNSHIFT_CNT_MASK,
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DOWNSHIFT_CNT(config->downshift_cnt) | DOWNSHIFT_EN);
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mdio_write(dev, COPPER_SPEC_CTRL_REG_1, reg);
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/* Downshift enable requires a software reset to take effect. */
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reg = mdio_read(dev, COPPER_CTRL_REG);
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setbits16(®, SOFTWARE_RESET);
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mdio_write(dev, COPPER_CTRL_REG, reg);
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}
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}
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/* Configure LEDs if requested. */
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if (config->configure_leds) {
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printk(BIOS_DEBUG, "%s: Set a customized LED mode for %s.\n",
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dev_path(dev->upstream->dev), dev->chip_ops->name);
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/* Select page 3 to access LED function control register. */
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switch_page(dev, 3);
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/* Modify PHY LED mode. */
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reg = mdio_read(dev, LED_FUNC_CTRL_REG);
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clrsetbits16(®, LED_FUNC_CTRL_MASK, config->led_0_ctrl |
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(config->led_1_ctrl << 4) | (config->led_2_ctrl << 8));
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mdio_write(dev, LED_FUNC_CTRL_REG, reg);
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}
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/* INTn can be routed to LED[2] pin. */
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if (config->enable_int) {
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printk(BIOS_DEBUG, "%s: INTn is routed to LED[2] pin %s.\n",
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dev_path(dev->upstream->dev), dev->chip_ops->name);
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/* Select page 3 to access LED function control register. */
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switch_page(dev, 3);
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reg = mdio_read(dev, LED_TIMER_CTRL_REG);
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setbits16(®, LED_IRQ_ENABLE);
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mdio_write(dev, LED_TIMER_CTRL_REG, reg);
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}
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/* Set RGMII output impedance manually. */
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if (config->force_mos) {
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printk(BIOS_DEBUG, "%s: Set RGMII driver strength manually for %s.\n",
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dev_path(dev->upstream->dev), dev->chip_ops->name);
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/* Select page 2 to access RGMII output impedance calibration override
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register. */
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switch_page(dev, 2);
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reg = mdio_read(dev, OUT_IMP_CAL_OVERRIDE_REG);
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/* Set first only NMOS/PMOS values. */
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clrsetbits16(®, MOS_VALUE_MASK, PMOS_VALUE(config->pmos_val) |
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NMOS_VALUE(config->nmos_val));
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mdio_write(dev, OUT_IMP_CAL_OVERRIDE_REG, reg);
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/* Activate the new setting. */
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setbits16(®, FORCE_MOS);
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mdio_write(dev, OUT_IMP_CAL_OVERRIDE_REG, reg);
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}
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/* Switch back to page 0. */
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switch_page(dev, 0);
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}
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struct device_operations m88e1512_ops = {
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.read_resources = noop_read_resources,
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.set_resources = noop_set_resources,
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.init = m88e1512_init,
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};
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struct chip_operations drivers_net_phy_m88e1512_ops = {
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.name = "88E1512",
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};
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