u-boot/arch/arm/mach-socfpga/system_manager_gen5.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

82 lines
2.3 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013-2017 Altera Corporation <www.altera.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/system_manager.h>
#include <asm/arch/fpga_manager.h>
static struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
/*
* 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.
*/
static void populate_sysmgr_fpgaintf_module(void)
{
u32 handoff_val = 0;
/* ISWGRP_HANDOFF_FPGAINTF */
writel(0, &sysmgr_regs->iswgrp_handoff[2]);
/* Enable the signal for those HPS peripherals that use FPGA. */
if (readl(&sysmgr_regs->nandusefpga) == SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_NAND;
if (readl(&sysmgr_regs->rgmii1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_EMAC1;
if (readl(&sysmgr_regs->sdmmcusefpga) == SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_SDMMC;
if (readl(&sysmgr_regs->rgmii0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_EMAC0;
if (readl(&sysmgr_regs->spim0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_SPIM0;
if (readl(&sysmgr_regs->spim1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
handoff_val |= SYSMGR_FPGAINTF_SPIM1;
/* populate (not writing) the value for SYSMGR.FPGAINTF.MODULE
based on pinmux setting */
setbits_le32(&sysmgr_regs->iswgrp_handoff[2], handoff_val);
handoff_val = readl(&sysmgr_regs->iswgrp_handoff[2]);
if (fpgamgr_test_fpga_ready()) {
/* Enable the required signals only */
writel(handoff_val, &sysmgr_regs->fpgaintfgrp_module);
}
}
/*
* Configure all the pin muxes
*/
void sysmgr_pinmux_init(void)
{
u32 regs = (u32)&sysmgr_regs->emacio[0];
const u8 *sys_mgr_init_table;
unsigned int len;
int i;
sysmgr_get_pinmux_table(&sys_mgr_init_table, &len);
for (i = 0; i < len; i++) {
writel(sys_mgr_init_table[i], regs);
regs += sizeof(regs);
}
populate_sysmgr_fpgaintf_module();
}
/*
* This bit allows the bootrom to configure the IOs after a warm reset.
*/
void sysmgr_config_warmrstcfgio(int enable)
{
if (enable)
setbits_le32(&sysmgr_regs->romcodegrp_ctrl,
SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO);
else
clrbits_le32(&sysmgr_regs->romcodegrp_ctrl,
SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO);
}