diff options
| author | Gaggery Tsai <gaggery.tsai@intel.com> | 2017-09-29 11:15:23 +0800 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2017-11-01 17:36:38 +0000 |
| commit | 65623efda571bf7d426360b6ed1db7fe627d8561 (patch) | |
| tree | 680371f5282d1c73c60ea42377755a8c57e222ec /src/drivers/net/r8168.c | |
| parent | a26c94e85493a92dc1238a1c7bbd1f9c1d0f3352 (diff) | |
drivers/net/r8168: Add customized LED mode
This patch adds a function to program a customized LED setting
for Realtek 81xx family. It reads the settings from devicetree under
target board and programs the setting to offset 0x18 and 0x19.
BUG=b:65437780
TEST=Add customized_leds register in devicetree.cb under target board,
enable RT8168_SET_LED_MODE flag. Make sure the setting is
programmed correctly to offset 0x18 and 0x19. Observed the
LEDs were behaving as expected. Executed suspend/resume and
the LEDs were still working as expected.
Change-Id: Ib3d4f2cd98ac391e1661a891d604bdd1974d07f6
Signed-off-by: Gaggery Tsai <gaggery.tsai@intel.com>
Reviewed-on: https://review.coreboot.org/21862
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/drivers/net/r8168.c')
| -rw-r--r-- | src/drivers/net/r8168.c | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/src/drivers/net/r8168.c b/src/drivers/net/r8168.c index 3727ccdd0f..350dc37322 100644 --- a/src/drivers/net/r8168.c +++ b/src/drivers/net/r8168.c @@ -31,11 +31,13 @@ #include <device/pci_def.h> #include <delay.h> #include <fmap.h> +#include "chip.h" #define NIC_TIMEOUT 1000 #define CMD_REG 0x37 #define CMD_REG_RESET 0x10 +#define CMD_LED0_LED1 0x18 #define CFG_9346 0x50 #define CFG_9346_LOCK 0x00 @@ -211,22 +213,59 @@ static void program_mac_address(struct device *dev, u16 io_base) printk(BIOS_DEBUG, "done\n"); } +static void r8168_set_customized_led(struct device *dev, u16 io_base) +{ + struct drivers_net_config *config = dev->chip_info; + + if (!config) + return; + + /* Read the customized LED setting from devicetree */ + printk(BIOS_DEBUG, "r8168: Customized LED 0x%x\n", config->customized_leds); + + /* + * Refer to RTL8111H datasheet 7.2 Customizable LED Configuration + * Starting from offset 0x18 + * Bit[15:12] LED Feature Control(FC) + * Bit[11:08] LED Select for PINLED2 + * Bit[07:04] LED Select for PINLED1 + * Bit[03:00] LED Select for PINLED0 + * + * Speed Link10M Link100M Link1000M ACT/Full + * LED0 Bit0 Bit1 Bit2 Bit3 + * LED1 Bit4 Bit5 Bit6 Bit7 + * LED2 Bit8 Bit9 Bit10 Bit11 + * FC Bit12 Bit13 Bit14 Bit15 + */ + + /* Set customized LED registers */ + outw(config->customized_leds, io_base + CMD_LED0_LED1); + printk(BIOS_DEBUG, "r8168: read back LED setting as 0x%x\n", + inw(io_base + CMD_LED0_LED1)); +} + static void r8168_init(struct device *dev) { /* Get the resource of the NIC mmio */ struct resource *nic_res = find_resource(dev, PCI_BASE_ADDRESS_0); u16 io_base = (u16)nic_res->base; + /* Check if the base is invalid */ + if (!io_base) { + printk(BIOS_ERR, "r8168: Error cant find IO resource\n"); + return; + } /* Enable but do not set bus master */ pci_write_config16(dev, PCI_COMMAND, PCI_COMMAND_MEMORY | PCI_COMMAND_IO); /* Program MAC address based on CBFS "macaddress" containing * a string AA:BB:CC:DD:EE:FF */ - if (io_base) - program_mac_address(dev, io_base); - else - printk(BIOS_ERR, "r8168: Error cant find MMIO resource\n"); + program_mac_address(dev, io_base); + + /* Program customized LED mode */ + if (IS_ENABLED(CONFIG_RT8168_SET_LED_MODE)) + r8168_set_customized_led(dev, io_base); } static struct device_operations r8168_ops = { |