u-boot/arch/arm/mach-socfpga/system_manager_soc64.c
Siew Chin Lim e2ffb1da1d arm: socfpga: Restructure Stratix10 and Agilex handoff code
Restructure Stratix10 and Agilex handoff code to used by
all SOC64 devices, in preparation to support handoff for
Diamond Mesa.

Remove wrap_pinmux_config_s10.c. Add wrap_handoff_soc64.c
which contains the generic function to parse the handoff
data.

Update system_manager_soc64.c to use generic handoff
function in wrap_handoff_soc64.c.

Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>
2021-04-08 17:29:12 +08:00

119 lines
3.8 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
*
*/
#include <asm/arch/handoff_soc64.h>
#include <asm/arch/system_manager.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <common.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* Configure all the pin muxes
*/
void sysmgr_pinmux_init(void)
{
populate_sysmgr_pinmux();
populate_sysmgr_fpgaintf_module();
}
/*
* Populate the value for SYSMGR.FPGAINTF.MODULE based on pinmux setting.
* The value is not wrote to SYSMGR.FPGAINTF.MODULE but
* CONFIG_SYSMGR_ISWGRP_HANDOFF.
*/
void populate_sysmgr_fpgaintf_module(void)
{
u32 handoff_val = 0;
/* Enable the signal for those HPS peripherals that use FPGA. */
if (readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_NAND_USEFPGA) ==
SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_NAND;
if (readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_SDMMC_USEFPGA) ==
SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_SDMMC;
if (readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_SPIM0_USEFPGA) ==
SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_SPIM0;
if (readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_SPIM1_USEFPGA) ==
SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_SPIM1;
writel(handoff_val,
socfpga_get_sysmgr_addr() + SYSMGR_SOC64_FPGAINTF_EN2);
handoff_val = 0;
if (readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_EMAC0_USEFPGA) ==
SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_EMAC0;
if (readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_EMAC1_USEFPGA) ==
SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_EMAC1;
if (readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_EMAC2_USEFPGA) ==
SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_EMAC2;
writel(handoff_val,
socfpga_get_sysmgr_addr() + SYSMGR_SOC64_FPGAINTF_EN3);
}
/*
* Configure all the pin muxes
*/
void populate_sysmgr_pinmux(void)
{
u32 len, i;
u32 len_mux = socfpga_get_handoff_size((void *)SOC64_HANDOFF_MUX, BIG_ENDIAN);
u32 len_ioctl = socfpga_get_handoff_size((void *)SOC64_HANDOFF_IOCTL, BIG_ENDIAN);
u32 len_fpga = socfpga_get_handoff_size((void *)SOC64_HANDOFF_FPGA, BIG_ENDIAN);
u32 len_delay = socfpga_get_handoff_size((void *)SOC64_HANDOFF_DELAY, BIG_ENDIAN);
len = (len_mux > len_ioctl) ? len_mux : len_ioctl;
len = (len > len_fpga) ? len : len_fpga;
len = (len > len_delay) ? len : len_delay;
u32 handoff_table[len];
/* setup the pin sel */
len = (len_mux < SOC64_HANDOFF_MUX_LEN) ? len_mux : SOC64_HANDOFF_MUX_LEN;
socfpga_handoff_read((void *)SOC64_HANDOFF_MUX, handoff_table, len, BIG_ENDIAN);
for (i = 0; i < len; i = i + 2) {
writel(handoff_table[i + 1],
handoff_table[i] +
(u8 *)socfpga_get_sysmgr_addr() +
SYSMGR_SOC64_PINSEL0);
}
/* setup the pin ctrl */
len = (len_ioctl < SOC64_HANDOFF_IOCTL_LEN) ? len_ioctl : SOC64_HANDOFF_IOCTL_LEN;
socfpga_handoff_read((void *)SOC64_HANDOFF_IOCTL, handoff_table, len, BIG_ENDIAN);
for (i = 0; i < len; i = i + 2) {
writel(handoff_table[i + 1],
handoff_table[i] +
(u8 *)socfpga_get_sysmgr_addr() +
SYSMGR_SOC64_IOCTRL0);
}
/* setup the fpga use */
len = (len_fpga < SOC64_HANDOFF_FPGA_LEN) ? len_fpga : SOC64_HANDOFF_FPGA_LEN;
socfpga_handoff_read((void *)SOC64_HANDOFF_FPGA, handoff_table, len, BIG_ENDIAN);
for (i = 0; i < len; i = i + 2) {
writel(handoff_table[i + 1],
handoff_table[i] +
(u8 *)socfpga_get_sysmgr_addr() +
SYSMGR_SOC64_EMAC0_USEFPGA);
}
/* setup the IO delay */
len = (len_delay < SOC64_HANDOFF_DELAY_LEN) ? len_delay : SOC64_HANDOFF_DELAY_LEN;
socfpga_handoff_read((void *)SOC64_HANDOFF_DELAY, handoff_table, len, BIG_ENDIAN);
for (i = 0; i < len; i = i + 2) {
writel(handoff_table[i + 1],
handoff_table[i] +
(u8 *)socfpga_get_sysmgr_addr() +
SYSMGR_SOC64_IODELAY0);
}
}