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210c534ce2
This commit moves the patches for the r8152.c driver to the generic directory. Previously they were only available on the bcm27xx target. With these patches the Realtek RTL8153C, RTL8153D, RTL8156A and RTL8156B chips are supported on all targets by the kmod-usb-net-rtl8152 module. The RTL8156A and RTL8156B are the 2.5Gb/s Ethernet adapters. The patches have been tested on TP-Link UE300 (RTL8153A) and UNITEK 1313B (RTL8156B). Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
199 lines
6.0 KiB
Diff
199 lines
6.0 KiB
Diff
From 86b98abf4f8c691c260c5113d6a2d32f5377caca Mon Sep 17 00:00:00 2001
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From: Hayes Wang <hayeswang@realtek.com>
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Date: Wed, 3 Feb 2021 17:14:28 +0800
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Subject: [PATCH] r8152: replace several functions about phy patch
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request
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commit a08c0d309d8c078d22717d815cf9853f6f2c07bd upstream.
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Replace r8153_patch_request() with rtl_phy_patch_request().
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Replace r8153_pre_ram_code() with rtl_pre_ram_code().
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Replace r8153_post_ram_code() with rtl_post_ram_code().
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Add rtl_patch_key_set().
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The new functions have an additional parameter. It is used to wait
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the patch request command finished. When the PHY is resumed from
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the state of power cut, the PHY is at a safe mode and the
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OCP_PHY_PATCH_STAT wouldn't be updated. For this situation, it is
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safe to set patch request command without waiting OCP_PHY_PATCH_STAT.
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Signed-off-by: Hayes Wang <hayeswang@realtek.com>
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/usb/r8152.c | 84 ++++++++++++++++++++++++-----------------
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1 file changed, 50 insertions(+), 34 deletions(-)
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--- a/drivers/net/usb/r8152.c
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+++ b/drivers/net/usb/r8152.c
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@@ -3444,59 +3444,76 @@ static void rtl_clear_bp(struct r8152 *t
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ocp_write_word(tp, type, PLA_BP_BA, 0);
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}
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-static int r8153_patch_request(struct r8152 *tp, bool request)
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+static int rtl_phy_patch_request(struct r8152 *tp, bool request, bool wait)
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{
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- u16 data;
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+ u16 data, check;
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int i;
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data = ocp_reg_read(tp, OCP_PHY_PATCH_CMD);
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- if (request)
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+ if (request) {
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data |= PATCH_REQUEST;
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- else
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+ check = 0;
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+ } else {
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data &= ~PATCH_REQUEST;
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+ check = PATCH_READY;
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+ }
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ocp_reg_write(tp, OCP_PHY_PATCH_CMD, data);
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- for (i = 0; request && i < 5000; i++) {
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+ for (i = 0; wait && i < 5000; i++) {
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+ u32 ocp_data;
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+
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usleep_range(1000, 2000);
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- if (ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)
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+ ocp_data = ocp_reg_read(tp, OCP_PHY_PATCH_STAT);
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+ if ((ocp_data & PATCH_READY) ^ check)
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break;
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}
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- if (request && !(ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)) {
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- netif_err(tp, drv, tp->netdev, "patch request fail\n");
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- r8153_patch_request(tp, false);
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+ if (request && wait &&
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+ !(ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)) {
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+ dev_err(&tp->intf->dev, "PHY patch request fail\n");
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+ rtl_phy_patch_request(tp, false, false);
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return -ETIME;
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} else {
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return 0;
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}
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}
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-static int r8153_pre_ram_code(struct r8152 *tp, u16 key_addr, u16 patch_key)
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+static void rtl_patch_key_set(struct r8152 *tp, u16 key_addr, u16 patch_key)
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{
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- if (r8153_patch_request(tp, true)) {
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- dev_err(&tp->intf->dev, "patch request fail\n");
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- return -ETIME;
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- }
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+ if (patch_key && key_addr) {
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+ sram_write(tp, key_addr, patch_key);
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+ sram_write(tp, SRAM_PHY_LOCK, PHY_PATCH_LOCK);
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+ } else if (key_addr) {
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+ u16 data;
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- sram_write(tp, key_addr, patch_key);
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- sram_write(tp, SRAM_PHY_LOCK, PHY_PATCH_LOCK);
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+ sram_write(tp, 0x0000, 0x0000);
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- return 0;
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+ data = ocp_reg_read(tp, OCP_PHY_LOCK);
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+ data &= ~PATCH_LOCK;
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+ ocp_reg_write(tp, OCP_PHY_LOCK, data);
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+
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+ sram_write(tp, key_addr, 0x0000);
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+ } else {
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+ WARN_ON_ONCE(1);
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+ }
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}
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-static int r8153_post_ram_code(struct r8152 *tp, u16 key_addr)
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+static int
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+rtl_pre_ram_code(struct r8152 *tp, u16 key_addr, u16 patch_key, bool wait)
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{
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- u16 data;
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+ if (rtl_phy_patch_request(tp, true, wait))
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+ return -ETIME;
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- sram_write(tp, 0x0000, 0x0000);
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+ rtl_patch_key_set(tp, key_addr, patch_key);
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- data = ocp_reg_read(tp, OCP_PHY_LOCK);
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- data &= ~PATCH_LOCK;
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- ocp_reg_write(tp, OCP_PHY_LOCK, data);
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+ return 0;
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+}
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- sram_write(tp, key_addr, 0x0000);
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+static int rtl_post_ram_code(struct r8152 *tp, u16 key_addr, bool wait)
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+{
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+ rtl_patch_key_set(tp, key_addr, 0);
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- r8153_patch_request(tp, false);
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+ rtl_phy_patch_request(tp, false, wait);
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ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, tp->ocp_base);
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@@ -3981,7 +3998,7 @@ static void rtl8152_fw_mac_apply(struct
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dev_dbg(&tp->intf->dev, "successfully applied %s\n", mac->info);
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}
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-static void rtl8152_apply_firmware(struct r8152 *tp)
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+static void rtl8152_apply_firmware(struct r8152 *tp, bool power_cut)
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{
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struct rtl_fw *rtl_fw = &tp->rtl_fw;
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const struct firmware *fw;
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@@ -4012,12 +4029,11 @@ static void rtl8152_apply_firmware(struc
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case RTL_FW_PHY_START:
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key = (struct fw_phy_patch_key *)block;
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key_addr = __le16_to_cpu(key->key_reg);
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- r8153_pre_ram_code(tp, key_addr,
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- __le16_to_cpu(key->key_data));
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+ rtl_pre_ram_code(tp, key_addr, __le16_to_cpu(key->key_data), !power_cut);
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break;
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case RTL_FW_PHY_STOP:
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WARN_ON(!key_addr);
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- r8153_post_ram_code(tp, key_addr);
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+ rtl_post_ram_code(tp, key_addr, !power_cut);
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break;
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case RTL_FW_PHY_NC:
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rtl8152_fw_phy_nc_apply(tp, (struct fw_phy_nc *)block);
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@@ -4222,7 +4238,7 @@ static void rtl8152_disable(struct r8152
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static void r8152b_hw_phy_cfg(struct r8152 *tp)
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{
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- rtl8152_apply_firmware(tp);
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+ rtl8152_apply_firmware(tp, false);
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rtl_eee_enable(tp, tp->eee_en);
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r8152_aldps_en(tp, true);
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r8152b_enable_fc(tp);
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@@ -4504,7 +4520,7 @@ static void r8153_hw_phy_cfg(struct r815
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/* disable EEE before updating the PHY parameters */
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rtl_eee_enable(tp, false);
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- rtl8152_apply_firmware(tp);
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+ rtl8152_apply_firmware(tp, false);
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if (tp->version == RTL_VER_03) {
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data = ocp_reg_read(tp, OCP_EEE_CFG);
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@@ -4578,7 +4594,7 @@ static void r8153b_hw_phy_cfg(struct r81
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/* disable EEE before updating the PHY parameters */
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rtl_eee_enable(tp, false);
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- rtl8152_apply_firmware(tp);
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+ rtl8152_apply_firmware(tp, false);
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r8153b_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags));
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@@ -4619,7 +4635,7 @@ static void r8153b_hw_phy_cfg(struct r81
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ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
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/* Advnace EEE */
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- if (!r8153_patch_request(tp, true)) {
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+ if (!rtl_phy_patch_request(tp, true, true)) {
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data = ocp_reg_read(tp, OCP_POWER_CFG);
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data |= EEE_CLKDIV_EN;
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ocp_reg_write(tp, OCP_POWER_CFG, data);
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@@ -4636,7 +4652,7 @@ static void r8153b_hw_phy_cfg(struct r81
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ocp_reg_write(tp, OCP_SYSCLK_CFG, clk_div_expo(5));
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tp->ups_info._250m_ckdiv = true;
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- r8153_patch_request(tp, false);
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+ rtl_phy_patch_request(tp, false, true);
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}
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if (tp->eee_en)
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