u-boot/board/freescale/ls1012aqds/ls1012aqds.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2016 Freescale Semiconductor, Inc.
* Copyright 2021 NXP
*/
#include <common.h>
#include <i2c.h>
#include <fdt_support.h>
#include <asm/cache.h>
#include <init.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/fsl_serdes.h>
#ifdef CONFIG_FSL_LS_PPA
#include <asm/arch/ppa.h>
#endif
#include <asm/arch/fdt.h>
#include <asm/arch/mmu.h>
#include <asm/arch/soc.h>
#include <ahci.h>
#include <hwconfig.h>
#include <mmc.h>
#include <env_internal.h>
#include <scsi.h>
#include <fm_eth.h>
#include <fsl_esdhc.h>
#include <fsl_mmdc.h>
#include <spl.h>
#include <netdev.h>
#include "../common/qixis.h"
#include "ls1012aqds_qixis.h"
#include "ls1012aqds_pfe.h"
#include <net/pfe_eth/pfe/pfe_hw.h>
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
char buf[64];
u8 sw;
sw = QIXIS_READ(arch);
printf("Board Arch: V%d, ", sw >> 4);
printf("Board version: %c, boot from ", (sw & 0xf) + 'A' - 1);
sw = QIXIS_READ(brdcfg[QIXIS_LBMAP_BRDCFG_REG]);
if (sw & QIXIS_LBMAP_ALTBANK)
printf("flash: 2\n");
else
printf("flash: 1\n");
printf("FPGA: v%d (%s), build %d",
(int)QIXIS_READ(scver), qixis_read_tag(buf),
(int)qixis_read_minor());
/* the timestamp string contains "\n" at the end */
printf(" on %s", qixis_read_time(buf));
return 0;
}
#ifdef CONFIG_TFABOOT
int dram_init(void)
{
gd->ram_size = tfa_get_dram_size();
if (!gd->ram_size)
gd->ram_size = CFG_SYS_SDRAM_SIZE;
return 0;
}
#else
int dram_init(void)
{
static const struct fsl_mmdc_info mparam = {
0x05180000, /* mdctl */
0x00030035, /* mdpdc */
0x12554000, /* mdotc */
0xbabf7954, /* mdcfg0 */
0xdb328f64, /* mdcfg1 */
0x01ff00db, /* mdcfg2 */
0x00001680, /* mdmisc */
0x0f3c8000, /* mdref */
0x00002000, /* mdrwd */
0x00bf1023, /* mdor */
0x0000003f, /* mdasp */
0x0000022a, /* mpodtctrl */
0xa1390003, /* mpzqhwctrl */
};
mmdc_init(&mparam);
gd->ram_size = CFG_SYS_SDRAM_SIZE;
#if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
/* This will break-before-make MMU for DDR */
update_early_mmu_table();
#endif
return 0;
}
#endif
int board_early_init_f(void)
{
fsl_lsch2_early_init_f();
return 0;
}
#ifdef CONFIG_MISC_INIT_R
int misc_init_r(void)
{
u8 mux_sdhc_cd = 0x80;
int bus_num = 0;
#if CONFIG_IS_ENABLED(DM_I2C)
struct udevice *dev;
int ret;
ret = i2c_get_chip_for_busnum(bus_num, CFG_SYS_I2C_FPGA_ADDR,
1, &dev);
if (ret) {
printf("%s: Cannot find udev for a bus %d\n", __func__,
bus_num);
return ret;
}
dm_i2c_write(dev, 0x5a, &mux_sdhc_cd, 1);
#else
i2c_set_bus_num(bus_num);
i2c_write(CFG_SYS_I2C_FPGA_ADDR, 0x5a, 1, &mux_sdhc_cd, 1);
#endif
return 0;
}
#endif
int board_init(void)
{
struct ccsr_cci400 *cci = (struct ccsr_cci400 *)(CONFIG_SYS_IMMR +
CONFIG_SYS_CCI400_OFFSET);
/* Set CCI-400 control override register to enable barrier
* transaction */
if (current_el() == 3)
out_le32(&cci->ctrl_ord,
CCI400_CTRLORD_EN_BARRIER);
#ifdef CONFIG_SYS_FSL_ERRATUM_A010315
erratum_a010315();
#endif
#ifdef CONFIG_FSL_LS_PPA
ppa_init();
#endif
return 0;
}
#ifdef CONFIG_FSL_PFE
void board_quiesce_devices(void)
{
pfe_command_stop(0, NULL);
}
#endif
int esdhc_status_fixup(void *blob, const char *compat)
{
char esdhc0_path[] = "/soc/esdhc@1560000";
char esdhc1_path[] = "/soc/esdhc@1580000";
u8 card_id;
do_fixup_by_path(blob, esdhc0_path, "status", "okay",
sizeof("okay"), 1);
/*
* The Presence Detect 2 register detects the installation
* of cards in various PCI Express or SGMII slots.
*
* STAT_PRS2[7:5]: Specifies the type of card installed in the
* SDHC2 Adapter slot. 0b111 indicates no adapter is installed.
*/
card_id = (QIXIS_READ(present2) & 0xe0) >> 5;
/* If no adapter is installed in SDHC2, disable SDHC2 */
if (card_id == 0x7)
do_fixup_by_path(blob, esdhc1_path, "status", "disabled",
sizeof("disabled"), 1);
else
do_fixup_by_path(blob, esdhc1_path, "status", "okay",
sizeof("okay"), 1);
return 0;
}
static int pfe_set_properties(void *set_blob, struct pfe_prop_val prop_val,
char *enet_path, char *mdio_path)
{
do_fixup_by_path(set_blob, enet_path, "fsl,gemac-bus-id",
&prop_val.busid, PFE_PROP_LEN, 1);
do_fixup_by_path(set_blob, enet_path, "fsl,gemac-phy-id",
&prop_val.phyid, PFE_PROP_LEN, 1);
do_fixup_by_path(set_blob, enet_path, "fsl,mdio-mux-val",
&prop_val.mux_val, PFE_PROP_LEN, 1);
do_fixup_by_path(set_blob, enet_path, "phy-mode",
prop_val.phy_mode, strlen(prop_val.phy_mode) + 1, 1);
do_fixup_by_path(set_blob, mdio_path, "fsl,mdio-phy-mask",
&prop_val.phy_mask, PFE_PROP_LEN, 1);
return 0;
}
static void fdt_fsl_fixup_of_pfe(void *blob)
{
int i = 0;
struct pfe_prop_val prop_val;
void *l_blob = blob;
struct ccsr_gur __iomem *gur = (void *)CFG_SYS_FSL_GUTS_ADDR;
unsigned int srds_s1 = in_be32(&gur->rcwsr[4]) &
FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK;
srds_s1 >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT;
for (i = 0; i < NUM_ETH_NODE; i++) {
switch (srds_s1) {
case SERDES_1_G_PROTOCOL:
if (i == 0) {
prop_val.busid = cpu_to_fdt32(
ETH_1_1G_BUS_ID);
prop_val.phyid = cpu_to_fdt32(
ETH_1_1G_PHY_ID);
prop_val.mux_val = cpu_to_fdt32(
ETH_1_1G_MDIO_MUX);
prop_val.phy_mask = cpu_to_fdt32(
ETH_1G_MDIO_PHY_MASK);
prop_val.phy_mode = "sgmii";
pfe_set_properties(l_blob, prop_val, ETH_1_PATH,
ETH_1_MDIO);
} else {
prop_val.busid = cpu_to_fdt32(
ETH_2_1G_BUS_ID);
prop_val.phyid = cpu_to_fdt32(
ETH_2_1G_PHY_ID);
prop_val.mux_val = cpu_to_fdt32(
ETH_2_1G_MDIO_MUX);
prop_val.phy_mask = cpu_to_fdt32(
ETH_1G_MDIO_PHY_MASK);
prop_val.phy_mode = "rgmii";
pfe_set_properties(l_blob, prop_val, ETH_2_PATH,
ETH_2_MDIO);
}
break;
case SERDES_2_5_G_PROTOCOL:
if (i == 0) {
prop_val.busid = cpu_to_fdt32(
ETH_1_2_5G_BUS_ID);
prop_val.phyid = cpu_to_fdt32(
ETH_1_2_5G_PHY_ID);
prop_val.mux_val = cpu_to_fdt32(
ETH_1_2_5G_MDIO_MUX);
prop_val.phy_mask = cpu_to_fdt32(
ETH_2_5G_MDIO_PHY_MASK);
net: freescale: replace usage of phy-mode = "sgmii-2500" with "2500base-x" After the discussion here: https://lore.kernel.org/netdev/20210603143453.if7hgifupx5k433b@pali/ which resulted in this patch: https://patchwork.kernel.org/project/netdevbpf/patch/20210704134325.24842-1-pali@kernel.org/ and many other discussions before it, notably: https://patchwork.kernel.org/project/linux-arm-kernel/patch/1512016235-15909-1-git-send-email-Bhaskar.Upadhaya@nxp.com/ it became apparent that nobody really knows what "SGMII 2500" is. Certainly, Freescale/NXP hardware engineers name this protocol "SGMII 2500" in the reference manuals, but the PCS devices do not support any "SGMII" specific features when operating at the speed of 2500 Mbps, no in-band autoneg and no speed change via symbol replication . So that leaves a fixed speed of 2500 Mbps using a coding of 8b/10b with a SERDES lane frequency of 3.125 GHz. In fact, "SGMII 2500 without in-band autoneg and at a fixed speed" is indistinguishable from "2500base-x without in-band autoneg", which is precisely what these NXP devices support. So it just appears that "SGMII 2500" is an unclear name with no clear definition that stuck. As such, in the Linux kernel, the drivers which use this SERDES protocol use the 2500base-x phy-mode. This patch converts U-Boot to use 2500base-x too, or at least, as much as it can. Note that I would have really liked to delete PHY_INTERFACE_MODE_SGMII_2500 completely, but the mvpp2 driver seems to even distinguish between SGMII 2500 and 2500base-X. Namely, it enables in-band autoneg for one but not the other, and forces flow control for one but not the other. This goes back to the idea that maybe 2500base-X is a fiber protocol and SGMII-2500 is an MII protocol (connects a MAC to a PHY such as Aquantia), but the two are practically indistinguishable through everything except use case. NXP devices can support both use cases through an identical configuration, for example RX flow control can be unconditionally enabled in order to support rate adaptation performed by an Aquantia PHY. At least I can find no indication in online documents published by Cisco which would point towards "SGMII-2500" being an actual standard with an actual definition, so I cannot say "yes, NXP devices support it". Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-18 12:32:35 +00:00
prop_val.phy_mode = "2500base-x";
pfe_set_properties(l_blob, prop_val, ETH_1_PATH,
ETH_1_MDIO);
} else {
prop_val.busid = cpu_to_fdt32(
ETH_2_2_5G_BUS_ID);
prop_val.phyid = cpu_to_fdt32(
ETH_2_2_5G_PHY_ID);
prop_val.mux_val = cpu_to_fdt32(
ETH_2_2_5G_MDIO_MUX);
prop_val.phy_mask = cpu_to_fdt32(
ETH_2_5G_MDIO_PHY_MASK);
net: freescale: replace usage of phy-mode = "sgmii-2500" with "2500base-x" After the discussion here: https://lore.kernel.org/netdev/20210603143453.if7hgifupx5k433b@pali/ which resulted in this patch: https://patchwork.kernel.org/project/netdevbpf/patch/20210704134325.24842-1-pali@kernel.org/ and many other discussions before it, notably: https://patchwork.kernel.org/project/linux-arm-kernel/patch/1512016235-15909-1-git-send-email-Bhaskar.Upadhaya@nxp.com/ it became apparent that nobody really knows what "SGMII 2500" is. Certainly, Freescale/NXP hardware engineers name this protocol "SGMII 2500" in the reference manuals, but the PCS devices do not support any "SGMII" specific features when operating at the speed of 2500 Mbps, no in-band autoneg and no speed change via symbol replication . So that leaves a fixed speed of 2500 Mbps using a coding of 8b/10b with a SERDES lane frequency of 3.125 GHz. In fact, "SGMII 2500 without in-band autoneg and at a fixed speed" is indistinguishable from "2500base-x without in-band autoneg", which is precisely what these NXP devices support. So it just appears that "SGMII 2500" is an unclear name with no clear definition that stuck. As such, in the Linux kernel, the drivers which use this SERDES protocol use the 2500base-x phy-mode. This patch converts U-Boot to use 2500base-x too, or at least, as much as it can. Note that I would have really liked to delete PHY_INTERFACE_MODE_SGMII_2500 completely, but the mvpp2 driver seems to even distinguish between SGMII 2500 and 2500base-X. Namely, it enables in-band autoneg for one but not the other, and forces flow control for one but not the other. This goes back to the idea that maybe 2500base-X is a fiber protocol and SGMII-2500 is an MII protocol (connects a MAC to a PHY such as Aquantia), but the two are practically indistinguishable through everything except use case. NXP devices can support both use cases through an identical configuration, for example RX flow control can be unconditionally enabled in order to support rate adaptation performed by an Aquantia PHY. At least I can find no indication in online documents published by Cisco which would point towards "SGMII-2500" being an actual standard with an actual definition, so I cannot say "yes, NXP devices support it". Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-18 12:32:35 +00:00
prop_val.phy_mode = "2500base-x";
pfe_set_properties(l_blob, prop_val, ETH_2_PATH,
ETH_2_MDIO);
}
break;
default:
printf("serdes:[%d]\n", srds_s1);
}
}
}
#ifdef CONFIG_OF_BOARD_SETUP
int ft_board_setup(void *blob, struct bd_info *bd)
{
arch_fixup_fdt(blob);
ft_cpu_setup(blob, bd);
fdt_fsl_fixup_of_pfe(blob);
return 0;
}
#endif