2 * Copyright (C) 2013 Altera Corporation <www.altera.com>
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/system_manager.h>
10 #include <asm/arch/fpga_manager.h>
12 DECLARE_GLOBAL_DATA_PTR
;
14 static struct socfpga_system_manager
*sysmgr_regs
=
15 (struct socfpga_system_manager
*)SOCFPGA_SYSMGR_ADDRESS
;
18 * Populate the value for SYSMGR.FPGAINTF.MODULE based on pinmux setting.
19 * The value is not wrote to SYSMGR.FPGAINTF.MODULE but
20 * CONFIG_SYSMGR_ISWGRP_HANDOFF.
22 static void populate_sysmgr_fpgaintf_module(void)
24 uint32_t handoff_val
= 0;
26 /* ISWGRP_HANDOFF_FPGAINTF */
27 writel(0, &sysmgr_regs
->iswgrp_handoff
[2]);
29 /* Enable the signal for those HPS peripherals that use FPGA. */
30 if (readl(&sysmgr_regs
->nandusefpga
) == SYSMGR_FPGAINTF_USEFPGA
)
31 handoff_val
|= SYSMGR_FPGAINTF_NAND
;
32 if (readl(&sysmgr_regs
->rgmii1usefpga
) == SYSMGR_FPGAINTF_USEFPGA
)
33 handoff_val
|= SYSMGR_FPGAINTF_EMAC1
;
34 if (readl(&sysmgr_regs
->sdmmcusefpga
) == SYSMGR_FPGAINTF_USEFPGA
)
35 handoff_val
|= SYSMGR_FPGAINTF_SDMMC
;
36 if (readl(&sysmgr_regs
->rgmii0usefpga
) == SYSMGR_FPGAINTF_USEFPGA
)
37 handoff_val
|= SYSMGR_FPGAINTF_EMAC0
;
38 if (readl(&sysmgr_regs
->spim0usefpga
) == SYSMGR_FPGAINTF_USEFPGA
)
39 handoff_val
|= SYSMGR_FPGAINTF_SPIM0
;
40 if (readl(&sysmgr_regs
->spim1usefpga
) == SYSMGR_FPGAINTF_USEFPGA
)
41 handoff_val
|= SYSMGR_FPGAINTF_SPIM1
;
43 /* populate (not writing) the value for SYSMGR.FPGAINTF.MODULE
44 based on pinmux setting */
45 setbits_le32(&sysmgr_regs
->iswgrp_handoff
[2], handoff_val
);
47 handoff_val
= readl(&sysmgr_regs
->iswgrp_handoff
[2]);
48 if (fpgamgr_test_fpga_ready()) {
49 /* Enable the required signals only */
50 writel(handoff_val
, &sysmgr_regs
->fpgaintfgrp_module
);
55 * Configure all the pin muxes
57 void sysmgr_pinmux_init(void)
59 uint32_t regs
= (uint32_t)&sysmgr_regs
->emacio
[0];
60 const u8
*sys_mgr_init_table
;
64 sysmgr_get_pinmux_table(&sys_mgr_init_table
, &len
);
66 for (i
= 0; i
< len
; i
++) {
67 writel(sys_mgr_init_table
[i
], regs
);
71 populate_sysmgr_fpgaintf_module();
75 * This bit allows the bootrom to configure the IOs after a warm reset.
77 void sysmgr_config_warmrstcfgio(int enable
)
80 setbits_le32(&sysmgr_regs
->romcodegrp_ctrl
,
81 SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO
);
83 clrbits_le32(&sysmgr_regs
->romcodegrp_ctrl
,
84 SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO
);