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drivers: net: pfe_eth: LS1012A PFE driver introduction

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This patch adds PFE driver to U-Boot

Following are the main driver files:-
pfe_hw.c: provides low level helper functions to initialize PFE
internal processor engines and other hardware blocks
pfe_driver.c: provides initialization functions
and packet send and receive functions
pfe_eth.c: provides high level gemac initialization functions
pfe_firmware.c: provides functions to load firmware into PFE
internal processor engines.
pfe_mdio.c: provides functions to initialize phy and mdio.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Calvin Johnson 2018-03-08 15:30:25 +05:30 committed by Joe Hershberger
parent 6b1373f245
commit a4a4043749
5 changed files with 2460 additions and 0 deletions
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643
drivers/net/pfe_eth/pfe_driver.c Normal file
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/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <net/pfe_eth/pfe_eth.h>
#include <net/pfe_eth/pfe_firmware.h>
static struct tx_desc_s *g_tx_desc;
static struct rx_desc_s *g_rx_desc;
/*
* HIF Rx interface function
* Reads the rx descriptor from the current location (rx_to_read).
* - If the descriptor has a valid data/pkt, then get the data pointer
* - check for the input rx phy number
* - increment the rx data pointer by pkt_head_room_size
* - decrement the data length by pkt_head_room_size
* - handover the packet to caller.
*
* @param[out] pkt_ptr - Pointer to store rx packet
* @param[out] phy_port - Pointer to store recv phy port
*
* @return -1 if no packet, else return length of packet.
*/
int pfe_recv(uchar **pkt_ptr, int *phy_port)
{
struct rx_desc_s *rx_desc = g_rx_desc;
struct buf_desc *bd;
int len = 0;
struct hif_header_s *hif_header;
bd = rx_desc->rx_base + rx_desc->rx_to_read;
if (readl(&bd->ctrl) & BD_CTRL_DESC_EN)
return len; /* No pending Rx packet */
/* this len include hif_header(8 bytes) */
len = readl(&bd->ctrl) & 0xFFFF;
hif_header = (struct hif_header_s *)DDR_PFE_TO_VIRT(readl(&bd->data));
/* Get the receive port info from the packet */
debug("Pkt received:");
debug(" Pkt ptr(%p), len(%d), gemac_port(%d) status(%08x)\n",
hif_header, len, hif_header->port_no, readl(&bd->status));
#ifdef DEBUG
{
int i;
unsigned char *p = (unsigned char *)hif_header;
for (i = 0; i < len; i++) {
if (!(i % 16))
printf("\n");
printf(" %02x", p[i]);
}
printf("\n");
}
#endif
*pkt_ptr = (uchar *)(hif_header + 1);
*phy_port = hif_header->port_no;
len -= sizeof(struct hif_header_s);
return len;
}
/*
* HIF function to check the Rx done
* This function will check the rx done indication of the current rx_to_read
* locations
* if success, moves the rx_to_read to next location.
*/
int pfe_eth_free_pkt(struct udevice *dev, uchar *packet, int length)
{
struct rx_desc_s *rx_desc = g_rx_desc;
struct buf_desc *bd;
debug("%s:rx_base: %p, rx_to_read: %d\n", __func__, rx_desc->rx_base,
rx_desc->rx_to_read);
bd = rx_desc->rx_base + rx_desc->rx_to_read;
/* reset the control field */
writel((MAX_FRAME_SIZE | BD_CTRL_LIFM | BD_CTRL_DESC_EN
| BD_CTRL_DIR), &bd->ctrl);
writel(0, &bd->status);
debug("Rx Done : status: %08x, ctrl: %08x\n", readl(&bd->status),
readl(&bd->ctrl));
/* Give START_STROBE to BDP to fetch the descriptor __NOW__,
* BDP need not wait for rx_poll_cycle time to fetch the descriptor,
* In idle state (ie., no rx pkt), BDP will not fetch
* the descriptor even if strobe is given.
*/
writel((readl(HIF_RX_CTRL) | HIF_CTRL_BDP_CH_START_WSTB), HIF_RX_CTRL);
/* increment the rx_to_read index to next location */
rx_desc->rx_to_read = (rx_desc->rx_to_read + 1)
& (rx_desc->rx_ring_size - 1);
debug("Rx next pkt location: %d\n", rx_desc->rx_to_read);
return 0;
}
/*
* HIF Tx interface function
* This function sends a single packet to PFE from HIF interface.
* - No interrupt indication on tx completion.
* - Data is copied to tx buffers before tx descriptor is updated
* and TX DMA is enabled.
*
* @param[in] phy_port Phy port number to send out this packet
* @param[in] data Pointer to the data
* @param[in] length Length of the ethernet packet to be transferred.
*
* @return -1 if tx Q is full, else returns the tx location where the pkt is
* placed.
*/
int pfe_send(int phy_port, void *data, int length)
{
struct tx_desc_s *tx_desc = g_tx_desc;
struct buf_desc *bd;
struct hif_header_s hif_header;
u8 *tx_buf_va;
debug("%s:pkt: %p, len: %d, tx_base: %p, tx_to_send: %d\n", __func__,
data, length, tx_desc->tx_base, tx_desc->tx_to_send);
bd = tx_desc->tx_base + tx_desc->tx_to_send;
/* check queue-full condition */
if (readl(&bd->ctrl) & BD_CTRL_DESC_EN)
return -1;
/* PFE checks for min pkt size */
if (length < MIN_PKT_SIZE)
length = MIN_PKT_SIZE;
tx_buf_va = (void *)DDR_PFE_TO_VIRT(readl(&bd->data));
debug("%s: tx_buf_va: %p, tx_buf_pa: %08x\n", __func__, tx_buf_va,
readl(&bd->data));
/* Fill the gemac/phy port number to send this packet out */
memset(&hif_header, 0, sizeof(struct hif_header_s));
hif_header.port_no = phy_port;
memcpy(tx_buf_va, (u8 *)&hif_header, sizeof(struct hif_header_s));
memcpy(tx_buf_va + sizeof(struct hif_header_s), data, length);
length += sizeof(struct hif_header_s);
#ifdef DEBUG
{
int i;
unsigned char *p = (unsigned char *)tx_buf_va;
for (i = 0; i < length; i++) {
if (!(i % 16))
printf("\n");
printf("%02x ", p[i]);
}
}
#endif
debug("Tx Done: status: %08x, ctrl: %08x\n", readl(&bd->status),
readl(&bd->ctrl));
/* fill the tx desc */
writel((u32)(BD_CTRL_DESC_EN | BD_CTRL_LIFM | (length & 0xFFFF)),
&bd->ctrl);
writel(0, &bd->status);
writel((HIF_CTRL_DMA_EN | HIF_CTRL_BDP_CH_START_WSTB), HIF_TX_CTRL);
udelay(100);
return tx_desc->tx_to_send;
}
/*
* HIF function to check the Tx done
* This function will check the tx done indication of the current tx_to_send
* locations
* if success, moves the tx_to_send to next location.
*
* @return -1 if TX ownership bit is not cleared by hw.
* else on success (tx done completion) return zero.
*/
int pfe_tx_done(void)
{
struct tx_desc_s *tx_desc = g_tx_desc;
struct buf_desc *bd;
debug("%s:tx_base: %p, tx_to_send: %d\n", __func__, tx_desc->tx_base,
tx_desc->tx_to_send);
bd = tx_desc->tx_base + tx_desc->tx_to_send;
/* check queue-full condition */
if (readl(&bd->ctrl) & BD_CTRL_DESC_EN)
return -1;
/* reset the control field */
writel(0, &bd->ctrl);
writel(0, &bd->status);
debug("Tx Done : status: %08x, ctrl: %08x\n", readl(&bd->status),
readl(&bd->ctrl));
/* increment the txtosend index to next location */
tx_desc->tx_to_send = (tx_desc->tx_to_send + 1)
& (tx_desc->tx_ring_size - 1);
debug("Tx next pkt location: %d\n", tx_desc->tx_to_send);
return 0;
}
/*
* Helper function to dump Rx descriptors.
*/
static inline void hif_rx_desc_dump(void)
{
struct buf_desc *bd_va;
int i;
struct rx_desc_s *rx_desc;
if (!g_rx_desc) {
printf("%s: HIF Rx desc no init\n", __func__);
return;
}
rx_desc = g_rx_desc;
bd_va = rx_desc->rx_base;
debug("HIF rx desc: base_va: %p, base_pa: %08x\n", rx_desc->rx_base,
rx_desc->rx_base_pa);
for (i = 0; i < rx_desc->rx_ring_size; i++) {
debug("status: %08x, ctrl: %08x, data: %08x, next: 0x%08x\n",
readl(&bd_va->status),
readl(&bd_va->ctrl),
readl(&bd_va->data),
readl(&bd_va->next));
bd_va++;
}
}
/*
* This function mark all Rx descriptors as LAST_BD.
*/
void hif_rx_desc_disable(void)
{
int i;
struct rx_desc_s *rx_desc;
struct buf_desc *bd_va;
if (!g_rx_desc) {
printf("%s: HIF Rx desc not initialized\n", __func__);
return;
}
rx_desc = g_rx_desc;
bd_va = rx_desc->rx_base;
for (i = 0; i < rx_desc->rx_ring_size; i++) {
writel(readl(&bd_va->ctrl) | BD_CTRL_LAST_BD, &bd_va->ctrl);
bd_va++;
}
}
/*
* HIF Rx Desc initialization function.
*/
static int hif_rx_desc_init(struct pfe_ddr_address *pfe_addr)
{
u32 ctrl;
struct buf_desc *bd_va;
struct buf_desc *bd_pa;
struct rx_desc_s *rx_desc;
u32 rx_buf_pa;
int i;
/* sanity check */
if (g_rx_desc) {
printf("%s: HIF Rx desc re-init request\n", __func__);
return 0;
}
rx_desc = (struct rx_desc_s *)malloc(sizeof(struct rx_desc_s));
if (!rx_desc) {
printf("%s: Memory allocation failure\n", __func__);
return -ENOMEM;
}
memset(rx_desc, 0, sizeof(struct rx_desc_s));
/* init: Rx ring buffer */
rx_desc->rx_ring_size = HIF_RX_DESC_NT;
/* NOTE: must be 64bit aligned */
bd_va = (struct buf_desc *)(pfe_addr->ddr_pfe_baseaddr
+ RX_BD_BASEADDR);
bd_pa = (struct buf_desc *)(pfe_addr->ddr_pfe_phys_baseaddr
+ RX_BD_BASEADDR);
rx_desc->rx_base = bd_va;
rx_desc->rx_base_pa = (unsigned long)bd_pa;
rx_buf_pa = pfe_addr->ddr_pfe_phys_baseaddr + HIF_RX_PKT_DDR_BASEADDR;
debug("%s: Rx desc base: %p, base_pa: %08x, desc_count: %d\n",
__func__, rx_desc->rx_base, rx_desc->rx_base_pa,
rx_desc->rx_ring_size);
memset(bd_va, 0, sizeof(struct buf_desc) * rx_desc->rx_ring_size);
ctrl = (MAX_FRAME_SIZE | BD_CTRL_DESC_EN | BD_CTRL_DIR | BD_CTRL_LIFM);
for (i = 0; i < rx_desc->rx_ring_size; i++) {
writel((unsigned long)(bd_pa + 1), &bd_va->next);
writel(ctrl, &bd_va->ctrl);
writel(rx_buf_pa + (i * MAX_FRAME_SIZE), &bd_va->data);
bd_va++;
bd_pa++;
}
--bd_va;
writel((u32)rx_desc->rx_base_pa, &bd_va->next);
writel(rx_desc->rx_base_pa, HIF_RX_BDP_ADDR);
writel((readl(HIF_RX_CTRL) | HIF_CTRL_BDP_CH_START_WSTB), HIF_RX_CTRL);
g_rx_desc = rx_desc;
return 0;
}
/*
* Helper function to dump Tx Descriptors.
*/
static inline void hif_tx_desc_dump(void)
{
struct tx_desc_s *tx_desc;
int i;
struct buf_desc *bd_va;
if (!g_tx_desc) {
printf("%s: HIF Tx desc no init\n", __func__);
return;
}
tx_desc = g_tx_desc;
bd_va = tx_desc->tx_base;
debug("HIF tx desc: base_va: %p, base_pa: %08x\n", tx_desc->tx_base,
tx_desc->tx_base_pa);
for (i = 0; i < tx_desc->tx_ring_size; i++)
bd_va++;
}
/*
* HIF Tx descriptor initialization function.
*/
static int hif_tx_desc_init(struct pfe_ddr_address *pfe_addr)
{
struct buf_desc *bd_va;
struct buf_desc *bd_pa;
int i;
struct tx_desc_s *tx_desc;
u32 tx_buf_pa;
/* sanity check */
if (g_tx_desc) {
printf("%s: HIF Tx desc re-init request\n", __func__);
return 0;
}
tx_desc = (struct tx_desc_s *)malloc(sizeof(struct tx_desc_s));
if (!tx_desc) {
printf("%s:%d:Memory allocation failure\n", __func__,
__LINE__);
return -ENOMEM;
}
memset(tx_desc, 0, sizeof(struct tx_desc_s));
/* init: Tx ring buffer */
tx_desc->tx_ring_size = HIF_TX_DESC_NT;
/* NOTE: must be 64bit aligned */
bd_va = (struct buf_desc *)(pfe_addr->ddr_pfe_baseaddr
+ TX_BD_BASEADDR);
bd_pa = (struct buf_desc *)(pfe_addr->ddr_pfe_phys_baseaddr
+ TX_BD_BASEADDR);
tx_desc->tx_base_pa = (unsigned long)bd_pa;
tx_desc->tx_base = bd_va;
debug("%s: Tx desc_base: %p, base_pa: %08x, desc_count: %d\n",
__func__, tx_desc->tx_base, tx_desc->tx_base_pa,
tx_desc->tx_ring_size);
memset(bd_va, 0, sizeof(struct buf_desc) * tx_desc->tx_ring_size);
tx_buf_pa = pfe_addr->ddr_pfe_phys_baseaddr + HIF_TX_PKT_DDR_BASEADDR;
for (i = 0; i < tx_desc->tx_ring_size; i++) {
writel((unsigned long)(bd_pa + 1), &bd_va->next);
writel(tx_buf_pa + (i * MAX_FRAME_SIZE), &bd_va->data);
bd_va++;
bd_pa++;
}
--bd_va;
writel((u32)tx_desc->tx_base_pa, &bd_va->next);
writel(tx_desc->tx_base_pa, HIF_TX_BDP_ADDR);
g_tx_desc = tx_desc;
return 0;
}
/*
* PFE/Class initialization.
*/
static void pfe_class_init(struct pfe_ddr_address *pfe_addr)
{
struct class_cfg class_cfg = {
.route_table_baseaddr = pfe_addr->ddr_pfe_phys_baseaddr +
ROUTE_TABLE_BASEADDR,
.route_table_hash_bits = ROUTE_TABLE_HASH_BITS,
};
class_init(&class_cfg);
debug("class init complete\n");
}
/*
* PFE/TMU initialization.
*/
static void pfe_tmu_init(struct pfe_ddr_address *pfe_addr)
{
struct tmu_cfg tmu_cfg = {
.llm_base_addr = pfe_addr->ddr_pfe_phys_baseaddr
+ TMU_LLM_BASEADDR,
.llm_queue_len = TMU_LLM_QUEUE_LEN,
};
tmu_init(&tmu_cfg);
debug("tmu init complete\n");
}
/*
* PFE/BMU (both BMU1 & BMU2) initialization.
*/
static void pfe_bmu_init(struct pfe_ddr_address *pfe_addr)
{
struct bmu_cfg bmu1_cfg = {
.baseaddr = CBUS_VIRT_TO_PFE(LMEM_BASE_ADDR +
BMU1_LMEM_BASEADDR),
.count = BMU1_BUF_COUNT,
.size = BMU1_BUF_SIZE,
};
struct bmu_cfg bmu2_cfg = {
.baseaddr = pfe_addr->ddr_pfe_phys_baseaddr + BMU2_DDR_BASEADDR,
.count = BMU2_BUF_COUNT,
.size = BMU2_BUF_SIZE,
};
bmu_init(BMU1_BASE_ADDR, &bmu1_cfg);
debug("bmu1 init: done\n");
bmu_init(BMU2_BASE_ADDR, &bmu2_cfg);
debug("bmu2 init: done\n");
}
/*
* PFE/GPI initialization function.
* - egpi1, egpi2, egpi3, hgpi
*/
static void pfe_gpi_init(struct pfe_ddr_address *pfe_addr)
{
struct gpi_cfg egpi1_cfg = {
.lmem_rtry_cnt = EGPI1_LMEM_RTRY_CNT,
.tmlf_txthres = EGPI1_TMLF_TXTHRES,
.aseq_len = EGPI1_ASEQ_LEN,
};
struct gpi_cfg egpi2_cfg = {
.lmem_rtry_cnt = EGPI2_LMEM_RTRY_CNT,
.tmlf_txthres = EGPI2_TMLF_TXTHRES,
.aseq_len = EGPI2_ASEQ_LEN,
};
struct gpi_cfg hgpi_cfg = {
.lmem_rtry_cnt = HGPI_LMEM_RTRY_CNT,
.tmlf_txthres = HGPI_TMLF_TXTHRES,
.aseq_len = HGPI_ASEQ_LEN,
};
gpi_init(EGPI1_BASE_ADDR, &egpi1_cfg);
debug("GPI1 init complete\n");
gpi_init(EGPI2_BASE_ADDR, &egpi2_cfg);
debug("GPI2 init complete\n");
gpi_init(HGPI_BASE_ADDR, &hgpi_cfg);
debug("HGPI init complete\n");
}
/*
* PFE/HIF initialization function.
*/
static int pfe_hif_init(struct pfe_ddr_address *pfe_addr)
{
int ret = 0;
hif_tx_disable();
hif_rx_disable();
ret = hif_tx_desc_init(pfe_addr);
if (ret)
return ret;
ret = hif_rx_desc_init(pfe_addr);
if (ret)
return ret;
hif_init();
hif_tx_enable();
hif_rx_enable();
hif_rx_desc_dump();
hif_tx_desc_dump();
debug("HIF init complete\n");
return ret;
}
/*
* PFE initialization
* - Firmware loading (CLASS-PE and TMU-PE)
* - BMU1 and BMU2 init
* - GEMAC init
* - GPI init
* - CLASS-PE init
* - TMU-PE init
* - HIF tx and rx descriptors init
*
* @param[in] edev Pointer to eth device structure.
*
* @return 0, on success.
*/
static int pfe_hw_init(struct pfe_ddr_address *pfe_addr)
{
int ret = 0;
debug("%s: start\n", __func__);
writel(0x3, CLASS_PE_SYS_CLK_RATIO);
writel(0x3, TMU_PE_SYS_CLK_RATIO);
writel(0x3, UTIL_PE_SYS_CLK_RATIO);
udelay(10);
pfe_class_init(pfe_addr);
pfe_tmu_init(pfe_addr);
pfe_bmu_init(pfe_addr);
pfe_gpi_init(pfe_addr);
ret = pfe_hif_init(pfe_addr);
if (ret)
return ret;
bmu_enable(BMU1_BASE_ADDR);
debug("bmu1 enabled\n");
bmu_enable(BMU2_BASE_ADDR);
debug("bmu2 enabled\n");
debug("%s: done\n", __func__);
return ret;
}
/*
* PFE driver init function.
* - Initializes pfe_lib
* - pfe hw init
* - fw loading and enables PEs
* - should be executed once.
*
* @param[in] pfe Pointer the pfe control block
*/
int pfe_drv_init(struct pfe_ddr_address *pfe_addr)
{
int ret = 0;
pfe_lib_init();
ret = pfe_hw_init(pfe_addr);
if (ret)
return ret;
/* Load the class,TM, Util fw.
* By now pfe is:
* - out of reset + disabled + configured.
* Fw loading should be done after pfe_hw_init()
*/
/* It loads default inbuilt sbl firmware */
pfe_firmware_init();
return ret;
}
/*
* PFE remove function
* - stops PEs
* - frees tx/rx descriptor resources
* - should be called once.
*
* @param[in] pfe Pointer to pfe control block.
*/
int pfe_eth_remove(struct udevice *dev)
{
if (g_tx_desc)
free(g_tx_desc);
if (g_rx_desc)
free(g_rx_desc);
pfe_firmware_exit();
return 0;
}

297
drivers/net/pfe_eth/pfe_eth.c Normal file
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/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <dm/platform_data/pfe_dm_eth.h>
#include <net.h>
#include <net/pfe_eth/pfe_eth.h>
#include <net/pfe_eth/pfe_mdio.h>
struct gemac_s gem_info[] = {
/* PORT_0 configuration */
{
/* GEMAC config */
.gemac_speed = PFE_MAC_SPEED_1000M,
.gemac_duplex = DUPLEX_FULL,
/* phy iface */
.phy_address = CONFIG_PFE_EMAC1_PHY_ADDR,
.phy_mode = PHY_INTERFACE_MODE_SGMII,
},
/* PORT_1 configuration */
{
/* GEMAC config */
.gemac_speed = PFE_MAC_SPEED_1000M,
.gemac_duplex = DUPLEX_FULL,
/* phy iface */
.phy_address = CONFIG_PFE_EMAC2_PHY_ADDR,
.phy_mode = PHY_INTERFACE_MODE_RGMII_TXID,
},
};
static inline void pfe_gemac_enable(void *gemac_base)
{
writel(readl(gemac_base + EMAC_ECNTRL_REG) |
EMAC_ECNTRL_ETHER_EN, gemac_base + EMAC_ECNTRL_REG);
}
static inline void pfe_gemac_disable(void *gemac_base)
{
writel(readl(gemac_base + EMAC_ECNTRL_REG) &
~EMAC_ECNTRL_ETHER_EN, gemac_base + EMAC_ECNTRL_REG);
}
static inline void pfe_gemac_set_speed(void *gemac_base, u32 speed)
{
struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
u32 ecr = readl(gemac_base + EMAC_ECNTRL_REG) & ~EMAC_ECNTRL_SPEED;
u32 rcr = readl(gemac_base + EMAC_RCNTRL_REG) & ~EMAC_RCNTRL_RMII_10T;
u32 rgmii_pcr = in_be32(&scfg->rgmiipcr) &
~(SCFG_RGMIIPCR_SETSP_1000M | SCFG_RGMIIPCR_SETSP_10M);
if (speed == _1000BASET) {
ecr |= EMAC_ECNTRL_SPEED;
rgmii_pcr |= SCFG_RGMIIPCR_SETSP_1000M;
} else if (speed != _100BASET) {
rcr |= EMAC_RCNTRL_RMII_10T;
rgmii_pcr |= SCFG_RGMIIPCR_SETSP_10M;
}
writel(ecr, gemac_base + EMAC_ECNTRL_REG);
out_be32(&scfg->rgmiipcr, rgmii_pcr | SCFG_RGMIIPCR_SETFD);
/* remove loop back */
rcr &= ~EMAC_RCNTRL_LOOP;
/* enable flow control */
rcr |= EMAC_RCNTRL_FCE;
/* Enable MII mode */
rcr |= EMAC_RCNTRL_MII_MODE;
writel(rcr, gemac_base + EMAC_RCNTRL_REG);
/* Enable Tx full duplex */
writel(readl(gemac_base + EMAC_TCNTRL_REG) | EMAC_TCNTRL_FDEN,
gemac_base + EMAC_TCNTRL_REG);
}
static int pfe_eth_write_hwaddr(struct udevice *dev)
{
struct pfe_eth_dev *priv = dev_get_priv(dev);
struct gemac_s *gem = priv->gem;
struct eth_pdata *pdata = dev_get_platdata(dev);
uchar *mac = pdata->enetaddr;
writel((mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3],
gem->gemac_base + EMAC_PHY_ADDR_LOW);
writel((mac[4] << 24) + (mac[5] << 16) + 0x8808, gem->gemac_base +
EMAC_PHY_ADDR_HIGH);
return 0;
}
/** Stops or Disables GEMAC pointing to this eth iface.
*
* @param[in] edev Pointer to eth device structure.
*
* @return none
*/
static inline void pfe_eth_stop(struct udevice *dev)
{
struct pfe_eth_dev *priv = dev_get_priv(dev);
pfe_gemac_disable(priv->gem->gemac_base);
gpi_disable(priv->gem->egpi_base);
}
static int pfe_eth_start(struct udevice *dev)
{
struct pfe_eth_dev *priv = dev_get_priv(dev);
struct gemac_s *gem = priv->gem;
int speed;
/* set ethernet mac address */
pfe_eth_write_hwaddr(dev);
writel(EMAC_TFWR, gem->gemac_base + EMAC_TFWR_STR_FWD);
writel(EMAC_RX_SECTION_FULL_32, gem->gemac_base + EMAC_RX_SECTIOM_FULL);
writel(EMAC_TRUNC_FL_16K, gem->gemac_base + EMAC_TRUNC_FL);
writel(EMAC_TX_SECTION_EMPTY_30, gem->gemac_base
+ EMAC_TX_SECTION_EMPTY);
writel(EMAC_MIBC_NO_CLR_NO_DIS, gem->gemac_base
+ EMAC_MIB_CTRL_STS_REG);
#ifdef CONFIG_PHYLIB
/* Start up the PHY */
if (phy_startup(priv->phydev)) {
printf("Could not initialize PHY %s\n",
priv->phydev->dev->name);
return -1;
}
speed = priv->phydev->speed;
printf("Speed detected %x\n", speed);
if (priv->phydev->duplex == DUPLEX_HALF) {
printf("Half duplex not supported\n");
return -1;
}
#endif
pfe_gemac_set_speed(gem->gemac_base, speed);
/* Enable GPI */
gpi_enable(gem->egpi_base);
/* Enable GEMAC */
pfe_gemac_enable(gem->gemac_base);
return 0;
}
static int pfe_eth_send(struct udevice *dev, void *packet, int length)
{
struct pfe_eth_dev *priv = (struct pfe_eth_dev *)dev->priv;
int rc;
int i = 0;
rc = pfe_send(priv->gemac_port, packet, length);
if (rc < 0) {
printf("Tx Queue full\n");
return rc;
}
while (1) {
rc = pfe_tx_done();
if (rc == 0)
break;
udelay(100);
i++;
if (i == 30000)
printf("Tx timeout, send failed\n");
break;
}
return 0;
}
static int pfe_eth_recv(struct udevice *dev, int flags, uchar **packetp)
{
struct pfe_eth_dev *priv = dev_get_priv(dev);
uchar *pkt_buf;
int len;
int phy_port;
len = pfe_recv(&pkt_buf, &phy_port);
if (len == 0)
return -EAGAIN; /* no packet in rx */
else if (len < 0)
return -EAGAIN;
debug("Rx pkt: pkt_buf(0x%p), phy_port(%d), len(%d)\n", pkt_buf,
phy_port, len);
if (phy_port != priv->gemac_port) {
printf("Rx pkt not on expected port\n");
return -EAGAIN;
}
*packetp = pkt_buf;
return len;
}
static int pfe_eth_probe(struct udevice *dev)
{
struct pfe_eth_dev *priv = dev_get_priv(dev);
struct pfe_ddr_address *pfe_addr;
struct pfe_eth_pdata *pdata = dev_get_platdata(dev);
int ret = 0;
static int init_done;
if (!init_done) {
pfe_addr = (struct pfe_ddr_address *)malloc(sizeof
(struct pfe_ddr_address));
if (!pfe_addr)
return -ENOMEM;
pfe_addr->ddr_pfe_baseaddr =
(void *)pdata->pfe_ddr_addr.ddr_pfe_baseaddr;
pfe_addr->ddr_pfe_phys_baseaddr =
(unsigned long)pdata->pfe_ddr_addr.ddr_pfe_phys_baseaddr;
debug("ddr_pfe_baseaddr: %p, ddr_pfe_phys_baseaddr: %08x\n",
pfe_addr->ddr_pfe_baseaddr,
(u32)pfe_addr->ddr_pfe_phys_baseaddr);
ret = pfe_drv_init(pfe_addr);
if (ret)
return ret;
init_pfe_scfg_dcfg_regs();
init_done = 1;
}
priv->gemac_port = pdata->pfe_eth_pdata_mac.phy_interface;
priv->gem = &gem_info[priv->gemac_port];
priv->dev = dev;
switch (priv->gemac_port) {
case EMAC_PORT_0:
default:
priv->gem->gemac_base = EMAC1_BASE_ADDR;
priv->gem->egpi_base = EGPI1_BASE_ADDR;
break;
case EMAC_PORT_1:
priv->gem->gemac_base = EMAC2_BASE_ADDR;
priv->gem->egpi_base = EGPI2_BASE_ADDR;
break;
}
ret = pfe_eth_board_init(dev);
if (ret)
return ret;
#if defined(CONFIG_PHYLIB)
ret = pfe_phy_configure(priv, pdata->pfe_eth_pdata_mac.phy_interface,
gem_info[priv->gemac_port].phy_address);
#endif
return ret;
}
static int pfe_eth_bind(struct udevice *dev)
{
struct pfe_eth_pdata *pdata = dev_get_platdata(dev);
char name[20];
sprintf(name, "pfe_eth%u", pdata->pfe_eth_pdata_mac.phy_interface);
return device_set_name(dev, name);
}
static const struct eth_ops pfe_eth_ops = {
.start = pfe_eth_start,
.send = pfe_eth_send,
.recv = pfe_eth_recv,
.free_pkt = pfe_eth_free_pkt,
.stop = pfe_eth_stop,
.write_hwaddr = pfe_eth_write_hwaddr,
};
U_BOOT_DRIVER(pfe_eth) = {
.name = "pfe_eth",
.id = UCLASS_ETH,
.bind = pfe_eth_bind,
.probe = pfe_eth_probe,
.remove = pfe_eth_remove,
.ops = &pfe_eth_ops,
.priv_auto_alloc_size = sizeof(struct pfe_eth_dev),
.platdata_auto_alloc_size = sizeof(struct pfe_eth_pdata)
};

230
drivers/net/pfe_eth/pfe_firmware.c Normal file
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/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* @file
* Contains all the functions to handle parsing and loading of PE firmware
* files.
*/
#include <net/pfe_eth/pfe_eth.h>
#include <net/pfe_eth/pfe_firmware.h>
#define PFE_FIRMEWARE_FIT_CNF_NAME "config@1"
static const void *pfe_fit_addr = (void *)CONFIG_SYS_LS_PFE_FW_ADDR;
/*
* PFE elf firmware loader.
* Loads an elf firmware image into a list of PE's (specified using a bitmask)
*
* @param pe_mask Mask of PE id's to load firmware to
* @param pfe_firmware Pointer to the firmware image
*
* @return 0 on success, a negative value on error
*/
static int pfe_load_elf(int pe_mask, uint8_t *pfe_firmware)
{
Elf32_Ehdr *elf_hdr = (Elf32_Ehdr *)pfe_firmware;
Elf32_Half sections = be16_to_cpu(elf_hdr->e_shnum);
Elf32_Shdr *shdr = (Elf32_Shdr *)(pfe_firmware +
be32_to_cpu(elf_hdr->e_shoff));
int id, section;
int ret;
debug("%s: no of sections: %d\n", __func__, sections);
/* Some sanity checks */
if (strncmp((char *)&elf_hdr->e_ident[EI_MAG0], ELFMAG, SELFMAG)) {
printf("%s: incorrect elf magic number\n", __func__);
return -1;
}
if (elf_hdr->e_ident[EI_CLASS] != ELFCLASS32) {
printf("%s: incorrect elf class(%x)\n", __func__,
elf_hdr->e_ident[EI_CLASS]);
return -1;
}
if (elf_hdr->e_ident[EI_DATA] != ELFDATA2MSB) {
printf("%s: incorrect elf data(%x)\n", __func__,
elf_hdr->e_ident[EI_DATA]);
return -1;
}
if (be16_to_cpu(elf_hdr->e_type) != ET_EXEC) {
printf("%s: incorrect elf file type(%x)\n", __func__,
be16_to_cpu(elf_hdr->e_type));
return -1;
}
for (section = 0; section < sections; section++, shdr++) {
if (!(be32_to_cpu(shdr->sh_flags) & (SHF_WRITE | SHF_ALLOC |
SHF_EXECINSTR)))
continue;
for (id = 0; id < MAX_PE; id++)
if (pe_mask & BIT(id)) {
ret = pe_load_elf_section(id,
pfe_firmware, shdr);
if (ret < 0)
goto err;
}
}
return 0;
err:
return ret;
}
/*
* Get PFE firmware from FIT image
*
* @param data pointer to PFE firmware
* @param size pointer to size of the firmware
* @param fw_name pfe firmware name, either class or tmu
*
* @return 0 on success, a negative value on error
*/
static int pfe_get_fw(const void **data,
size_t *size, char *fw_name)
{
int conf_node_off, fw_node_off;
char *conf_node_name = NULL;
char *desc;
int ret = 0;
conf_node_name = PFE_FIRMEWARE_FIT_CNF_NAME;
conf_node_off = fit_conf_get_node(pfe_fit_addr, conf_node_name);
if (conf_node_off < 0) {
printf("PFE Firmware: %s: no such config\n", conf_node_name);
return -ENOENT;
}
fw_node_off = fit_conf_get_prop_node(pfe_fit_addr, conf_node_off,
fw_name);
if (fw_node_off < 0) {
printf("PFE Firmware: No '%s' in config\n",
fw_name);
return -ENOLINK;
}
if (!(fit_image_verify(pfe_fit_addr, fw_node_off))) {
printf("PFE Firmware: Bad firmware image (bad CRC)\n");
return -EINVAL;
}
if (fit_image_get_data(pfe_fit_addr, fw_node_off, data, size)) {
printf("PFE Firmware: Can't get %s subimage data/size",
fw_name);
return -ENOENT;
}
ret = fit_get_desc(pfe_fit_addr, fw_node_off, &desc);
if (ret)
printf("PFE Firmware: Can't get description\n");
else
printf("%s\n", desc);
return ret;
}
/*
* Check PFE FIT image
*
* @return 0 on success, a negative value on error
*/
static int pfe_fit_check(void)
{
int ret = 0;
ret = fdt_check_header(pfe_fit_addr);
if (ret) {
printf("PFE Firmware: Bad firmware image (not a FIT image)\n");
return ret;
}
if (!fit_check_format(pfe_fit_addr)) {
printf("PFE Firmware: Bad firmware image (bad FIT header)\n");
ret = -1;
return ret;
}
return ret;
}
/*
* PFE firmware initialization.
* Loads different firmware files from FIT image.
* Initializes PE IMEM/DMEM and UTIL-PE DDR
* Initializes control path symbol addresses (by looking them up in the elf
* firmware files
* Takes PE's out of reset
*
* @return 0 on success, a negative value on error
*/
int pfe_firmware_init(void)
{
char *pfe_firmware_name;
const void *raw_image_addr;
size_t raw_image_size = 0;
u8 *pfe_firmware;
int ret = 0;
int fw_count;
ret = pfe_fit_check();
if (ret)
goto err;
for (fw_count = 0; fw_count < 2; fw_count++) {
if (fw_count == 0)
pfe_firmware_name = "class";
else if (fw_count == 1)
pfe_firmware_name = "tmu";
pfe_get_fw(&raw_image_addr, &raw_image_size, pfe_firmware_name);
pfe_firmware = malloc(raw_image_size);
if (!pfe_firmware)
return -ENOMEM;
memcpy((void *)pfe_firmware, (void *)raw_image_addr,
raw_image_size);
if (fw_count == 0)
ret = pfe_load_elf(CLASS_MASK, pfe_firmware);
else if (fw_count == 1)
ret = pfe_load_elf(TMU_MASK, pfe_firmware);
if (ret < 0) {
printf("%s: %s firmware load failed\n", __func__,
pfe_firmware_name);
goto err;
}
debug("%s: %s firmware loaded\n", __func__, pfe_firmware_name);
free(pfe_firmware);
}
tmu_enable(0xb);
class_enable();
gpi_enable(HGPI_BASE_ADDR);
err:
return ret;
}
/*
* PFE firmware cleanup
* Puts PE's in reset
*/
void pfe_firmware_exit(void)
{
debug("%s\n", __func__);
class_disable();
tmu_disable(0xf);
hif_tx_disable();
hif_rx_disable();
}

999
drivers/net/pfe_eth/pfe_hw.c Normal file
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/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*
* SPDX-License-Identifier:GPL-2.0+
*/
#include <net/pfe_eth/pfe_eth.h>
#include <net/pfe_eth/pfe/pfe_hw.h>
static struct pe_info pe[MAX_PE];
/*
* Initializes the PFE library.
* Must be called before using any of the library functions.
*/
void pfe_lib_init(void)
{
int pfe_pe_id;
for (pfe_pe_id = CLASS0_ID; pfe_pe_id <= CLASS_MAX_ID; pfe_pe_id++) {
pe[pfe_pe_id].dmem_base_addr =
(u32)CLASS_DMEM_BASE_ADDR(pfe_pe_id);
pe[pfe_pe_id].pmem_base_addr =
(u32)CLASS_IMEM_BASE_ADDR(pfe_pe_id);
pe[pfe_pe_id].pmem_size = (u32)CLASS_IMEM_SIZE;
pe[pfe_pe_id].mem_access_wdata =
(void *)CLASS_MEM_ACCESS_WDATA;
pe[pfe_pe_id].mem_access_addr = (void *)CLASS_MEM_ACCESS_ADDR;
pe[pfe_pe_id].mem_access_rdata = (void *)CLASS_MEM_ACCESS_RDATA;
}
for (pfe_pe_id = TMU0_ID; pfe_pe_id <= TMU_MAX_ID; pfe_pe_id++) {
if (pfe_pe_id == TMU2_ID)
continue;
pe[pfe_pe_id].dmem_base_addr =
(u32)TMU_DMEM_BASE_ADDR(pfe_pe_id - TMU0_ID);
pe[pfe_pe_id].pmem_base_addr =
(u32)TMU_IMEM_BASE_ADDR(pfe_pe_id - TMU0_ID);
pe[pfe_pe_id].pmem_size = (u32)TMU_IMEM_SIZE;
pe[pfe_pe_id].mem_access_wdata = (void *)TMU_MEM_ACCESS_WDATA;
pe[pfe_pe_id].mem_access_addr = (void *)TMU_MEM_ACCESS_ADDR;
pe[pfe_pe_id].mem_access_rdata = (void *)TMU_MEM_ACCESS_RDATA;
}
}
/*
* Writes a buffer to PE internal memory from the host
* through indirect access registers.
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] mem_access_addr DMEM destination address (must be 32bit
* aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void pe_mem_memcpy_to32(int id, u32 mem_access_addr, const void *src,
unsigned int len)
{
u32 offset = 0, val, addr;
unsigned int len32 = len >> 2;
int i;
addr = mem_access_addr | PE_MEM_ACCESS_WRITE |
PE_MEM_ACCESS_BYTE_ENABLE(0, 4);
for (i = 0; i < len32; i++, offset += 4, src += 4) {
val = *(u32 *)src;
writel(cpu_to_be32(val), pe[id].mem_access_wdata);
writel(addr + offset, pe[id].mem_access_addr);
}
len = (len & 0x3);
if (len) {
val = 0;
addr = (mem_access_addr | PE_MEM_ACCESS_WRITE |
PE_MEM_ACCESS_BYTE_ENABLE(0, len)) + offset;
for (i = 0; i < len; i++, src++)
val |= (*(u8 *)src) << (8 * i);
writel(cpu_to_be32(val), pe[id].mem_access_wdata);
writel(addr, pe[id].mem_access_addr);
}
}
/*
* Writes a buffer to PE internal data memory (DMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] dst DMEM destination address (must be 32bit
* aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void pe_dmem_memcpy_to32(int id, u32 dst, const void *src,
unsigned int len)
{
pe_mem_memcpy_to32(id, pe[id].dmem_base_addr | dst | PE_MEM_ACCESS_DMEM,
src, len);
}
/*
* Writes a buffer to PE internal program memory (PMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., TMU3_ID)
* @param[in] dst PMEM destination address (must be 32bit
* aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void pe_pmem_memcpy_to32(int id, u32 dst, const void *src,
unsigned int len)
{
pe_mem_memcpy_to32(id, pe[id].pmem_base_addr | (dst & (pe[id].pmem_size
- 1)) | PE_MEM_ACCESS_IMEM, src, len);
}
/*
* Reads PE internal program memory (IMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., TMU3_ID)
* @param[in] addr PMEM read address (must be aligned on size)
* @param[in] size Number of bytes to read (maximum 4, must not
* cross 32bit boundaries)
* @return the data read (in PE endianness, i.e BE).
*/
u32 pe_pmem_read(int id, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
u32 mask = 0xffffffff >> ((4 - size) << 3);
u32 val;
addr = pe[id].pmem_base_addr | ((addr & ~0x3) & (pe[id].pmem_size - 1))
| PE_MEM_ACCESS_READ | PE_MEM_ACCESS_IMEM |
PE_MEM_ACCESS_BYTE_ENABLE(offset, size);
writel(addr, pe[id].mem_access_addr);
val = be32_to_cpu(readl(pe[id].mem_access_rdata));
return (val >> (offset << 3)) & mask;
}
/*
* Writes PE internal data memory (DMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] val Value to write (in PE endianness, i.e BE)
* @param[in] addr DMEM write address (must be aligned on size)
* @param[in] size Number of bytes to write (maximum 4, must not
* cross 32bit boundaries)
*/
void pe_dmem_write(int id, u32 val, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
addr = pe[id].dmem_base_addr | (addr & ~0x3) | PE_MEM_ACCESS_WRITE |
PE_MEM_ACCESS_DMEM | PE_MEM_ACCESS_BYTE_ENABLE(offset, size);
/* Indirect access interface is byte swapping data being written */
writel(cpu_to_be32(val << (offset << 3)), pe[id].mem_access_wdata);
writel(addr, pe[id].mem_access_addr);
}
/*
* Reads PE internal data memory (DMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] addr DMEM read address (must be aligned on size)
* @param[in] size Number of bytes to read (maximum 4, must not
* cross 32bit boundaries)
* @return the data read (in PE endianness, i.e BE).
*/
u32 pe_dmem_read(int id, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
u32 mask = 0xffffffff >> ((4 - size) << 3);
u32 val;
addr = pe[id].dmem_base_addr | (addr & ~0x3) | PE_MEM_ACCESS_READ |
PE_MEM_ACCESS_DMEM | PE_MEM_ACCESS_BYTE_ENABLE(offset, size);
writel(addr, pe[id].mem_access_addr);
/* Indirect access interface is byte swapping data being read */
val = be32_to_cpu(readl(pe[id].mem_access_rdata));
return (val >> (offset << 3)) & mask;
}
/*
* This function is used to write to CLASS internal bus peripherals (ccu,
* pe-lem) from the host
* through indirect access registers.
* @param[in] val value to write
* @param[in] addr Address to write to (must be aligned on size)
* @param[in] size Number of bytes to write (1, 2 or 4)
*
*/
static void class_bus_write(u32 val, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
writel((addr & CLASS_BUS_ACCESS_BASE_MASK), CLASS_BUS_ACCESS_BASE);
addr = (addr & ~CLASS_BUS_ACCESS_BASE_MASK) | PE_MEM_ACCESS_WRITE |
(size << 24);
writel(cpu_to_be32(val << (offset << 3)), CLASS_BUS_ACCESS_WDATA);
writel(addr, CLASS_BUS_ACCESS_ADDR);
}
/*
* Reads from CLASS internal bus peripherals (ccu, pe-lem) from the host
* through indirect access registers.
* @param[in] addr Address to read from (must be aligned on size)
* @param[in] size Number of bytes to read (1, 2 or 4)
* @return the read data
*/
static u32 class_bus_read(u32 addr, u8 size)
{
u32 offset = addr & 0x3;
u32 mask = 0xffffffff >> ((4 - size) << 3);
u32 val;
writel((addr & CLASS_BUS_ACCESS_BASE_MASK), CLASS_BUS_ACCESS_BASE);
addr = (addr & ~CLASS_BUS_ACCESS_BASE_MASK) | (size << 24);
writel(addr, CLASS_BUS_ACCESS_ADDR);
val = be32_to_cpu(readl(CLASS_BUS_ACCESS_RDATA));
return (val >> (offset << 3)) & mask;
}
/*
* Writes data to the cluster memory (PE_LMEM)
* @param[in] dst PE LMEM destination address (must be 32bit aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void class_pe_lmem_memcpy_to32(u32 dst, const void *src,
unsigned int len)
{
u32 len32 = len >> 2;
int i;
for (i = 0; i < len32; i++, src += 4, dst += 4)
class_bus_write(*(u32 *)src, dst, 4);
if (len & 0x2) {
class_bus_write(*(u16 *)src, dst, 2);
src += 2;
dst += 2;
}
if (len & 0x1) {
class_bus_write(*(u8 *)src, dst, 1);
src++;
dst++;
}
}
/*
* Writes value to the cluster memory (PE_LMEM)
* @param[in] dst PE LMEM destination address (must be 32bit aligned)
* @param[in] val Value to write
* @param[in] len Number of bytes to write
*/
static void class_pe_lmem_memset(u32 dst, int val, unsigned int len)
{
u32 len32 = len >> 2;
int i;
val = val | (val << 8) | (val << 16) | (val << 24);
for (i = 0; i < len32; i++, dst += 4)
class_bus_write(val, dst, 4);
if (len & 0x2) {
class_bus_write(val, dst, 2);
dst += 2;
}
if (len & 0x1) {
class_bus_write(val, dst, 1);
dst++;
}
}
/*
* Reads data from the cluster memory (PE_LMEM)
* @param[out] dst pointer to the source buffer data are copied to
* @param[in] len length in bytes of the amount of data to read
* from cluster memory
* @param[in] offset offset in bytes in the cluster memory where data are
* read from
*/
void pe_lmem_read(u32 *dst, u32 len, u32 offset)
{
u32 len32 = len >> 2;
int i = 0;
for (i = 0; i < len32; dst++, i++, offset += 4)
*dst = class_bus_read(PE_LMEM_BASE_ADDR + offset, 4);
if (len & 0x03)
*dst = class_bus_read(PE_LMEM_BASE_ADDR + offset, (len & 0x03));
}
/*
* Writes data to the cluster memory (PE_LMEM)
* @param[in] src pointer to the source buffer data are copied from
* @param[in] len length in bytes of the amount of data to write to the
* cluster memory
* @param[in] offset offset in bytes in the cluster memory where data are
* written to
*/
void pe_lmem_write(u32 *src, u32 len, u32 offset)
{
u32 len32 = len >> 2;
int i = 0;
for (i = 0; i < len32; src++, i++, offset += 4)
class_bus_write(*src, PE_LMEM_BASE_ADDR + offset, 4);
if (len & 0x03)
class_bus_write(*src, PE_LMEM_BASE_ADDR + offset, (len &
0x03));
}
/*
* Loads an elf section into pmem
* Code needs to be at least 16bit aligned and only PROGBITS sections are
* supported
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID, ...,
* TMU3_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_pmem_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
if (((unsigned long)(data + offset) & 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr, (unsigned long)data + offset);
return -1;
}
if (addr & 0x1) {
printf("%s: load address(%x) is not 16bit aligned\n",
__func__, addr);
return -1;
}
if (size & 0x1) {
printf("%s: load size(%x) is not 16bit aligned\n", __func__,
size);
return -1;
}
debug("pmem pe%d @%x len %d\n", id, addr, size);
switch (type) {
case SHT_PROGBITS:
pe_pmem_memcpy_to32(id, addr, data + offset, size);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into dmem
* Data needs to be at least 32bit aligned, NOBITS sections are correctly
* initialized to 0
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_dmem_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
u32 size32 = size >> 2;
int i;
if (((unsigned long)(data + offset) & 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr, (unsigned long)data + offset);
return -1;
}
if (addr & 0x3) {
printf("%s: load address(%x) is not 32bit aligned\n",
__func__, addr);
return -1;
}
switch (type) {
case SHT_PROGBITS:
debug("dmem pe%d @%x len %d\n", id, addr, size);
pe_dmem_memcpy_to32(id, addr, data + offset, size);
break;
case SHT_NOBITS:
debug("dmem zero pe%d @%x len %d\n", id, addr, size);
for (i = 0; i < size32; i++, addr += 4)
pe_dmem_write(id, 0, addr, 4);
if (size & 0x3)
pe_dmem_write(id, 0, addr, size & 0x3);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into DDR
* Data needs to be at least 32bit aligned, NOBITS sections are correctly
* initialized to 0
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_ddr_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
u32 flags = be32_to_cpu(shdr->sh_flags);
switch (type) {
case SHT_PROGBITS:
debug("ddr pe%d @%x len %d\n", id, addr, size);
if (flags & SHF_EXECINSTR) {
if (id <= CLASS_MAX_ID) {
/* DO the loading only once in DDR */
if (id == CLASS0_ID) {
debug(
"%s: load address(%x) and elf file address(%lx) rcvd\n"
, __func__, addr,
(unsigned long)data + offset);
if (((unsigned long)(data + offset)
& 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr,
(unsigned long)data +
offset);
return -1;
}
if (addr & 0x1) {
printf(
"%s: load address(%x) is not 16bit aligned\n"
, __func__, addr);
return -1;
}
if (size & 0x1) {
printf(
"%s: load length(%x) is not 16bit aligned\n"
, __func__, size);
return -1;
}
memcpy((void *)DDR_PFE_TO_VIRT(addr),
data + offset, size);
}
} else {
printf(
"%s: unsupported ddr section type(%x) for PE(%d)\n"
, __func__, type, id);
return -1;
}
} else {
memcpy((void *)DDR_PFE_TO_VIRT(addr), data + offset,
size);
}
break;
case SHT_NOBITS:
debug("ddr zero pe%d @%x len %d\n", id, addr, size);
memset((void *)DDR_PFE_TO_VIRT(addr), 0, size);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into pe lmem
* Data needs to be at least 32bit aligned, NOBITS sections are correctly
* initialized to 0
*
* @param[in] id PE identification (CLASS0_ID,..., CLASS5_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_pe_lmem_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
if (id > CLASS_MAX_ID) {
printf("%s: unsupported pe-lmem section type(%x) for PE(%d)\n",
__func__, type, id);
return -1;
}
if (((unsigned long)(data + offset) & 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr, (unsigned long)data + offset);
return -1;
}
if (addr & 0x3) {
printf("%s: load address(%x) is not 32bit aligned\n",
__func__, addr);
return -1;
}
debug("lmem pe%d @%x len %d\n", id, addr, size);
switch (type) {
case SHT_PROGBITS:
class_pe_lmem_memcpy_to32(addr, data + offset, size);
break;
case SHT_NOBITS:
class_pe_lmem_memset(addr, 0, size);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into a PE
* For now only supports loading a section to dmem (all PE's), pmem (class and
* tmu PE's), DDDR (util PE code)
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
int pe_load_elf_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
if (IS_DMEM(addr, size))
return pe_load_dmem_section(id, data, shdr);
else if (IS_PMEM(addr, size))
return pe_load_pmem_section(id, data, shdr);
else if (IS_PFE_LMEM(addr, size))
return 0;
else if (IS_PHYS_DDR(addr, size))
return pe_load_ddr_section(id, data, shdr);
else if (IS_PE_LMEM(addr, size))
return pe_load_pe_lmem_section(id, data, shdr);
printf("%s: unsupported memory range(%x)\n", __func__, addr);
return 0;
}
/**************************** BMU ***************************/
/*
* Resets a BMU block.
* @param[in] base BMU block base address
*/
static inline void bmu_reset(void *base)
{
writel(CORE_SW_RESET, base + BMU_CTRL);
/* Wait for self clear */
while (readl(base + BMU_CTRL) & CORE_SW_RESET)
;
}
/*
* Enabled a BMU block.
* @param[in] base BMU block base address
*/
void bmu_enable(void *base)
{
writel(CORE_ENABLE, base + BMU_CTRL);
}
/*
* Disables a BMU block.
* @param[in] base BMU block base address
*/
static inline void bmu_disable(void *base)
{
writel(CORE_DISABLE, base + BMU_CTRL);
}
/*
* Sets the configuration of a BMU block.
* @param[in] base BMU block base address
* @param[in] cfg BMU configuration
*/
static inline void bmu_set_config(void *base, struct bmu_cfg *cfg)
{
writel(cfg->baseaddr, base + BMU_UCAST_BASE_ADDR);
writel(cfg->count & 0xffff, base + BMU_UCAST_CONFIG);
writel(cfg->size & 0xffff, base + BMU_BUF_SIZE);
/* Interrupts are never used */
writel(0x0, base + BMU_INT_ENABLE);
}
/*
* Initializes a BMU block.
* @param[in] base BMU block base address
* @param[in] cfg BMU configuration
*/
void bmu_init(void *base, struct bmu_cfg *cfg)
{
bmu_disable(base);
bmu_set_config(base, cfg);
bmu_reset(base);
}
/**************************** GPI ***************************/
/*
* Resets a GPI block.
* @param[in] base GPI base address
*/
static inline void gpi_reset(void *base)
{
writel(CORE_SW_RESET, base + GPI_CTRL);
}
/*
* Enables a GPI block.
* @param[in] base GPI base address
*/
void gpi_enable(void *base)
{
writel(CORE_ENABLE, base + GPI_CTRL);
}
/*
* Disables a GPI block.
* @param[in] base GPI base address
*/
void gpi_disable(void *base)
{
writel(CORE_DISABLE, base + GPI_CTRL);
}
/*
* Sets the configuration of a GPI block.
* @param[in] base GPI base address
* @param[in] cfg GPI configuration
*/
static inline void gpi_set_config(void *base, struct gpi_cfg *cfg)
{
writel(CBUS_VIRT_TO_PFE(BMU1_BASE_ADDR + BMU_ALLOC_CTRL), base
+ GPI_LMEM_ALLOC_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU1_BASE_ADDR + BMU_FREE_CTRL), base
+ GPI_LMEM_FREE_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU2_BASE_ADDR + BMU_ALLOC_CTRL), base
+ GPI_DDR_ALLOC_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU2_BASE_ADDR + BMU_FREE_CTRL), base
+ GPI_DDR_FREE_ADDR);
writel(CBUS_VIRT_TO_PFE(CLASS_INQ_PKTPTR), base + GPI_CLASS_ADDR);
writel(DDR_HDR_SIZE, base + GPI_DDR_DATA_OFFSET);
writel(LMEM_HDR_SIZE, base + GPI_LMEM_DATA_OFFSET);
writel(0, base + GPI_LMEM_SEC_BUF_DATA_OFFSET);
writel(0, base + GPI_DDR_SEC_BUF_DATA_OFFSET);
writel((DDR_HDR_SIZE << 16) | LMEM_HDR_SIZE, base + GPI_HDR_SIZE);
writel((DDR_BUF_SIZE << 16) | LMEM_BUF_SIZE, base + GPI_BUF_SIZE);
writel(((cfg->lmem_rtry_cnt << 16) | (GPI_DDR_BUF_EN << 1) |
GPI_LMEM_BUF_EN), base + GPI_RX_CONFIG);
writel(cfg->tmlf_txthres, base + GPI_TMLF_TX);
writel(cfg->aseq_len, base + GPI_DTX_ASEQ);
/*Make GPI AXI transactions non-bufferable */
writel(0x1, base + GPI_AXI_CTRL);
}
/*
* Initializes a GPI block.
* @param[in] base GPI base address
* @param[in] cfg GPI configuration
*/
void gpi_init(void *base, struct gpi_cfg *cfg)
{
gpi_reset(base);
gpi_disable(base);
gpi_set_config(base, cfg);
}
/**************************** CLASSIFIER ***************************/
/*
* Resets CLASSIFIER block.
*/
static inline void class_reset(void)
{
writel(CORE_SW_RESET, CLASS_TX_CTRL);
}
/*
* Enables all CLASS-PE's cores.
*/
void class_enable(void)
{
writel(CORE_ENABLE, CLASS_TX_CTRL);
}
/*
* Disables all CLASS-PE's cores.
*/
void class_disable(void)
{
writel(CORE_DISABLE, CLASS_TX_CTRL);
}
/*
* Sets the configuration of the CLASSIFIER block.
* @param[in] cfg CLASSIFIER configuration
*/
static inline void class_set_config(struct class_cfg *cfg)
{
if (PLL_CLK_EN == 0) {
/* Clock ratio: for 1:1 the value is 0 */
writel(0x0, CLASS_PE_SYS_CLK_RATIO);
} else {
/* Clock ratio: for 1:2 the value is 1 */
writel(0x1, CLASS_PE_SYS_CLK_RATIO);
}
writel((DDR_HDR_SIZE << 16) | LMEM_HDR_SIZE, CLASS_HDR_SIZE);
writel(LMEM_BUF_SIZE, CLASS_LMEM_BUF_SIZE);
writel(CLASS_ROUTE_ENTRY_SIZE(CLASS_ROUTE_SIZE) |
CLASS_ROUTE_HASH_SIZE(cfg->route_table_hash_bits),
CLASS_ROUTE_HASH_ENTRY_SIZE);
writel(HASH_CRC_PORT_IP | QB2BUS_LE, CLASS_ROUTE_MULTI);
writel(cfg->route_table_baseaddr, CLASS_ROUTE_TABLE_BASE);
memset((void *)DDR_PFE_TO_VIRT(cfg->route_table_baseaddr), 0,
ROUTE_TABLE_SIZE);
writel(CLASS_PE0_RO_DM_ADDR0_VAL, CLASS_PE0_RO_DM_ADDR0);
writel(CLASS_PE0_RO_DM_ADDR1_VAL, CLASS_PE0_RO_DM_ADDR1);
writel(CLASS_PE0_QB_DM_ADDR0_VAL, CLASS_PE0_QB_DM_ADDR0);
writel(CLASS_PE0_QB_DM_ADDR1_VAL, CLASS_PE0_QB_DM_ADDR1);
writel(CBUS_VIRT_TO_PFE(TMU_PHY_INQ_PKTPTR), CLASS_TM_INQ_ADDR);
writel(23, CLASS_AFULL_THRES);
writel(23, CLASS_TSQ_FIFO_THRES);
writel(24, CLASS_MAX_BUF_CNT);
writel(24, CLASS_TSQ_MAX_CNT);
/*Make Class AXI transactions non-bufferable */
writel(0x1, CLASS_AXI_CTRL);
/*Make Util AXI transactions non-bufferable */
/*Util is disabled in U-boot, do it from here */
writel(0x1, UTIL_AXI_CTRL);
}
/*
* Initializes CLASSIFIER block.
* @param[in] cfg CLASSIFIER configuration
*/
void class_init(struct class_cfg *cfg)
{
class_reset();
class_disable();
class_set_config(cfg);
}
/**************************** TMU ***************************/
/*
* Enables TMU-PE cores.
* @param[in] pe_mask TMU PE mask
*/
void tmu_enable(u32 pe_mask)
{
writel(readl(TMU_TX_CTRL) | (pe_mask & 0xF), TMU_TX_CTRL);
}
/*
* Disables TMU cores.
* @param[in] pe_mask TMU PE mask
*/
void tmu_disable(u32 pe_mask)
{
writel(readl(TMU_TX_CTRL) & ~(pe_mask & 0xF), TMU_TX_CTRL);
}
/*
* Initializes TMU block.
* @param[in] cfg TMU configuration
*/
void tmu_init(struct tmu_cfg *cfg)
{
int q, phyno;
/* keep in soft reset */
writel(SW_RESET, TMU_CTRL);
/*Make Class AXI transactions non-bufferable */
writel(0x1, TMU_AXI_CTRL);
/* enable EMAC PHY ports */
writel(0x3, TMU_SYS_GENERIC_CONTROL);
writel(750, TMU_INQ_WATERMARK);
writel(CBUS_VIRT_TO_PFE(EGPI1_BASE_ADDR + GPI_INQ_PKTPTR),
TMU_PHY0_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(EGPI2_BASE_ADDR + GPI_INQ_PKTPTR),
TMU_PHY1_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(HGPI_BASE_ADDR + GPI_INQ_PKTPTR),
TMU_PHY3_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(HIF_NOCPY_RX_INQ0_PKTPTR), TMU_PHY4_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(UTIL_INQ_PKTPTR), TMU_PHY5_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU2_BASE_ADDR + BMU_FREE_CTRL),
TMU_BMU_INQ_ADDR);
/* enabling all 10 schedulers [9:0] of each TDQ */
writel(0x3FF, TMU_TDQ0_SCH_CTRL);
writel(0x3FF, TMU_TDQ1_SCH_CTRL);
writel(0x3FF, TMU_TDQ3_SCH_CTRL);
if (PLL_CLK_EN == 0) {
/* Clock ratio: for 1:1 the value is 0 */
writel(0x0, TMU_PE_SYS_CLK_RATIO);
} else {
/* Clock ratio: for 1:2 the value is 1 */
writel(0x1, TMU_PE_SYS_CLK_RATIO);
}
/* Extra packet pointers will be stored from this address onwards */
debug("TMU_LLM_BASE_ADDR %x\n", cfg->llm_base_addr);
writel(cfg->llm_base_addr, TMU_LLM_BASE_ADDR);
debug("TMU_LLM_QUE_LEN %x\n", cfg->llm_queue_len);
writel(cfg->llm_queue_len, TMU_LLM_QUE_LEN);
writel(5, TMU_TDQ_IIFG_CFG);
writel(DDR_BUF_SIZE, TMU_BMU_BUF_SIZE);
writel(0x0, TMU_CTRL);
/* MEM init */
writel(MEM_INIT, TMU_CTRL);
while (!(readl(TMU_CTRL) & MEM_INIT_DONE))
;
/* LLM init */
writel(LLM_INIT, TMU_CTRL);
while (!(readl(TMU_CTRL) & LLM_INIT_DONE))
;
/* set up each queue for tail drop */
for (phyno = 0; phyno < 4; phyno++) {
if (phyno == 2)
continue;
for (q = 0; q < 16; q++) {
u32 qmax;
writel((phyno << 8) | q, TMU_TEQ_CTRL);
writel(BIT(22), TMU_TEQ_QCFG);
if (phyno == 3)
qmax = DEFAULT_TMU3_QDEPTH;
else
qmax = (q == 0) ? DEFAULT_Q0_QDEPTH :
DEFAULT_MAX_QDEPTH;
writel(qmax << 18, TMU_TEQ_HW_PROB_CFG2);
writel(qmax >> 14, TMU_TEQ_HW_PROB_CFG3);
}
}
writel(0x05, TMU_TEQ_DISABLE_DROPCHK);
writel(0, TMU_CTRL);
}
/**************************** HIF ***************************/
/*
* Enable hif tx DMA and interrupt
*/
void hif_tx_enable(void)
{
writel(HIF_CTRL_DMA_EN, HIF_TX_CTRL);
}
/*
* Disable hif tx DMA and interrupt
*/
void hif_tx_disable(void)
{
u32 hif_int;
writel(0, HIF_TX_CTRL);
hif_int = readl(HIF_INT_ENABLE);
hif_int &= HIF_TXPKT_INT_EN;
writel(hif_int, HIF_INT_ENABLE);
}
/*
* Enable hif rx DMA and interrupt
*/
void hif_rx_enable(void)
{
writel((HIF_CTRL_DMA_EN | HIF_CTRL_BDP_CH_START_WSTB), HIF_RX_CTRL);
}
/*
* Disable hif rx DMA and interrupt
*/
void hif_rx_disable(void)
{
u32 hif_int;
writel(0, HIF_RX_CTRL);
hif_int = readl(HIF_INT_ENABLE);
hif_int &= HIF_RXPKT_INT_EN;
writel(hif_int, HIF_INT_ENABLE);
}
/*
* Initializes HIF copy block.
*/
void hif_init(void)
{
/* Initialize HIF registers */
writel(HIF_RX_POLL_CTRL_CYCLE << 16 | HIF_TX_POLL_CTRL_CYCLE,
HIF_POLL_CTRL);
/* Make HIF AXI transactions non-bufferable */
writel(0x1, HIF_AXI_CTRL);
}

291
drivers/net/pfe_eth/pfe_mdio.c Normal file
View file

@ -0,0 +1,291 @@
/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <dm/platform_data/pfe_dm_eth.h>
#include <net.h>
#include <net/pfe_eth/pfe_eth.h>
extern struct gemac_s gem_info[];
#if defined(CONFIG_PHYLIB)
#define MDIO_TIMEOUT 5000
static int pfe_write_addr(struct mii_dev *bus, int phy_addr, int dev_addr,
int reg_addr)
{
void *reg_base = bus->priv;
u32 devadr;
u32 phy;
u32 reg_data;
int timeout = MDIO_TIMEOUT;
devadr = ((dev_addr & EMAC_MII_DATA_RA_MASK) << EMAC_MII_DATA_RA_SHIFT);
phy = ((phy_addr & EMAC_MII_DATA_PA_MASK) << EMAC_MII_DATA_PA_SHIFT);
reg_data = (EMAC_MII_DATA_TA | phy | devadr | reg_addr);
writel(reg_data, reg_base + EMAC_MII_DATA_REG);
/*
* wait for the MII interrupt
*/
while (!(readl(reg_base + EMAC_IEVENT_REG) & EMAC_IEVENT_MII)) {
if (timeout-- <= 0) {
printf("Phy MDIO read/write timeout\n");
return -1;
}
}
/*
* clear MII interrupt
*/
writel(EMAC_IEVENT_MII, reg_base + EMAC_IEVENT_REG);
return 0;
}
static int pfe_phy_read(struct mii_dev *bus, int phy_addr, int dev_addr,
int reg_addr)
{
void *reg_base = bus->priv;
u32 reg;
u32 phy;
u32 reg_data;
u16 val;
int timeout = MDIO_TIMEOUT;
if (dev_addr == MDIO_DEVAD_NONE) {
reg = ((reg_addr & EMAC_MII_DATA_RA_MASK) <<
EMAC_MII_DATA_RA_SHIFT);
} else {
pfe_write_addr(bus, phy_addr, dev_addr, reg_addr);
reg = ((dev_addr & EMAC_MII_DATA_RA_MASK) <<
EMAC_MII_DATA_RA_SHIFT);
}
phy = ((phy_addr & EMAC_MII_DATA_PA_MASK) << EMAC_MII_DATA_PA_SHIFT);
if (dev_addr == MDIO_DEVAD_NONE)
reg_data = (EMAC_MII_DATA_ST | EMAC_MII_DATA_OP_RD |
EMAC_MII_DATA_TA | phy | reg);
else
reg_data = (EMAC_MII_DATA_OP_CL45_RD | EMAC_MII_DATA_TA |
phy | reg);
writel(reg_data, reg_base + EMAC_MII_DATA_REG);
/*
* wait for the MII interrupt
*/
while (!(readl(reg_base + EMAC_IEVENT_REG) & EMAC_IEVENT_MII)) {
if (timeout-- <= 0) {
printf("Phy MDIO read/write timeout\n");
return -1;
}
}
/*
* clear MII interrupt
*/
writel(EMAC_IEVENT_MII, reg_base + EMAC_IEVENT_REG);
/*
* it's now safe to read the PHY's register
*/
val = (u16)readl(reg_base + EMAC_MII_DATA_REG);
debug("%s: %p phy: 0x%x reg:0x%08x val:%#x\n", __func__, reg_base,
phy_addr, reg_addr, val);
return val;
}
static int pfe_phy_write(struct mii_dev *bus, int phy_addr, int dev_addr,
int reg_addr, u16 data)
{
void *reg_base = bus->priv;
u32 reg;
u32 phy;
u32 reg_data;
int timeout = MDIO_TIMEOUT;
int val;
if (dev_addr == MDIO_DEVAD_NONE) {
reg = ((reg_addr & EMAC_MII_DATA_RA_MASK) <<
EMAC_MII_DATA_RA_SHIFT);
} else {
pfe_write_addr(bus, phy_addr, dev_addr, reg_addr);
reg = ((dev_addr & EMAC_MII_DATA_RA_MASK) <<
EMAC_MII_DATA_RA_SHIFT);
}
phy = ((phy_addr & EMAC_MII_DATA_PA_MASK) << EMAC_MII_DATA_PA_SHIFT);
if (dev_addr == MDIO_DEVAD_NONE)
reg_data = (EMAC_MII_DATA_ST | EMAC_MII_DATA_OP_WR |
EMAC_MII_DATA_TA | phy | reg | data);
else
reg_data = (EMAC_MII_DATA_OP_CL45_WR | EMAC_MII_DATA_TA |
phy | reg | data);
writel(reg_data, reg_base + EMAC_MII_DATA_REG);
/*
* wait for the MII interrupt
*/
while (!(readl(reg_base + EMAC_IEVENT_REG) & EMAC_IEVENT_MII)) {
if (timeout-- <= 0) {
printf("Phy MDIO read/write timeout\n");
return -1;
}
}
/*
* clear MII interrupt
*/
writel(EMAC_IEVENT_MII, reg_base + EMAC_IEVENT_REG);
debug("%s: phy: %02x reg:%02x val:%#x\n", __func__, phy_addr,
reg_addr, data);
return val;
}
static void pfe_configure_serdes(struct pfe_eth_dev *priv)
{
struct mii_dev bus;
int value, sgmii_2500 = 0;
struct gemac_s *gem = priv->gem;
if (gem->phy_mode == PHY_INTERFACE_MODE_SGMII_2500)
sgmii_2500 = 1;
printf("%s %d\n", __func__, priv->gemac_port);
/* PCS configuration done with corresponding GEMAC */
bus.priv = gem_info[priv->gemac_port].gemac_base;
pfe_phy_read(&bus, 0, MDIO_DEVAD_NONE, 0x0);
pfe_phy_read(&bus, 0, MDIO_DEVAD_NONE, 0x1);
pfe_phy_read(&bus, 0, MDIO_DEVAD_NONE, 0x2);
pfe_phy_read(&bus, 0, MDIO_DEVAD_NONE, 0x3);
/* Reset serdes */
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0x0, 0x8000);
/* SGMII IF mode + AN enable only for 1G SGMII, not for 2.5G */
value = PHY_SGMII_IF_MODE_SGMII;
if (!sgmii_2500)
value |= PHY_SGMII_IF_MODE_AN;
else
value |= PHY_SGMII_IF_MODE_SGMII_GBT;
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0x14, value);
/* Dev ability according to SGMII specification */
value = PHY_SGMII_DEV_ABILITY_SGMII;
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0x4, value);
/* These values taken from validation team */
if (!sgmii_2500) {
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0x13, 0x0);
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0x12, 0x400);
} else {
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0x13, 0x7);
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0x12, 0xa120);
}
/* Restart AN */
value = PHY_SGMII_CR_DEF_VAL;
if (!sgmii_2500)
value |= PHY_SGMII_CR_RESET_AN;
/* Disable Auto neg for 2.5G SGMII as it doesn't support auto neg*/
if (sgmii_2500)
value &= ~PHY_SGMII_ENABLE_AN;
pfe_phy_write(&bus, 0, MDIO_DEVAD_NONE, 0, value);
}
int pfe_phy_configure(struct pfe_eth_dev *priv, int dev_id, int phy_id)
{
struct phy_device *phydev = NULL;
struct udevice *dev = priv->dev;
struct gemac_s *gem = priv->gem;
struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
if (!gem->bus)
return -1;
/* Configure SGMII PCS */
if (gem->phy_mode == PHY_INTERFACE_MODE_SGMII ||
gem->phy_mode == PHY_INTERFACE_MODE_SGMII_2500) {
out_be32(&scfg->mdioselcr, 0x00000000);
pfe_configure_serdes(priv);
}
mdelay(100);
/* By this time on-chip SGMII initialization is done
* we can switch mdio interface to external PHYs
*/
out_be32(&scfg->mdioselcr, 0x80000000);
phydev = phy_connect(gem->bus, phy_id, dev, gem->phy_mode);
if (!phydev) {
printf("phy_connect failed\n");
return -ENODEV;
}
phy_config(phydev);
priv->phydev = phydev;
return 0;
}
#endif
struct mii_dev *pfe_mdio_init(struct pfe_mdio_info *mdio_info)
{
struct mii_dev *bus;
int ret;
u32 mdio_speed;
u32 pclk = 250000000;
bus = mdio_alloc();
if (!bus) {
printf("mdio_alloc failed\n");
return NULL;
}
bus->read = pfe_phy_read;
bus->write = pfe_phy_write;
/* MAC1 MDIO used to communicate with external PHYS */
bus->priv = mdio_info->reg_base;
sprintf(bus->name, mdio_info->name);
/* configure mdio speed */
mdio_speed = (DIV_ROUND_UP(pclk, 4000000) << EMAC_MII_SPEED_SHIFT);
mdio_speed |= EMAC_HOLDTIME(0x5);
writel(mdio_speed, mdio_info->reg_base + EMAC_MII_CTRL_REG);
ret = mdio_register(bus);
if (ret) {
printf("mdio_register failed\n");
free(bus);
return NULL;
}
return bus;
}
void pfe_set_mdio(int dev_id, struct mii_dev *bus)
{
gem_info[dev_id].bus = bus;
}
void pfe_set_phy_address_mode(int dev_id, int phy_id, int phy_mode)
{
gem_info[dev_id].phy_address = phy_id;
gem_info[dev_id].phy_mode = phy_mode;
}