[U-Boot] [PATCH v2 04/16] arm: socfpga: stratix10: Add pinmux support for Stratix10 SoC
Heinrich Schuchardt
xypron.glpk at gmx.de
Sun Jun 7 01:07:20 CEST 2020
On 5/18/18 4:05 PM, Ley Foon Tan wrote:
> Add pinmux driver support for Stratix SoC
>
> Signed-off-by: Chin Liang See <chin.liang.see at intel.com>
> Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
> ---
> arch/arm/mach-socfpga/Makefile | 2 +
> .../arm/mach-socfpga/include/mach/system_manager.h | 5 +-
> .../mach-socfpga/include/mach/system_manager_s10.h | 176 ++++++++++++++++++++
> arch/arm/mach-socfpga/system_manager_s10.c | 91 ++++++++++
> arch/arm/mach-socfpga/wrap_pinmux_config_s10.c | 56 ++++++
> 5 files changed, 329 insertions(+), 1 deletions(-)
> create mode 100644 arch/arm/mach-socfpga/include/mach/system_manager_s10.h
> create mode 100644 arch/arm/mach-socfpga/system_manager_s10.c
> create mode 100644 arch/arm/mach-socfpga/wrap_pinmux_config_s10.c
>
> diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
> index 69bdb84..61f5778 100644
> --- a/arch/arm/mach-socfpga/Makefile
> +++ b/arch/arm/mach-socfpga/Makefile
> @@ -31,6 +31,8 @@ endif
> ifdef CONFIG_TARGET_SOCFPGA_STRATIX10
> obj-y += clock_manager_s10.o
> obj-y += reset_manager_s10.o
> +obj-y += system_manager_s10.o
> +obj-y += wrap_pinmux_config_s10.o
> obj-y += wrap_pll_config_s10.o
> endif
> ifdef CONFIG_SPL_BUILD
> diff --git a/arch/arm/mach-socfpga/include/mach/system_manager.h b/arch/arm/mach-socfpga/include/mach/system_manager.h
> index fbe2a8b..7e76df7 100644
> --- a/arch/arm/mach-socfpga/include/mach/system_manager.h
> +++ b/arch/arm/mach-socfpga/include/mach/system_manager.h
> @@ -6,6 +6,9 @@
> #ifndef _SYSTEM_MANAGER_H_
> #define _SYSTEM_MANAGER_H_
>
> +#if defined(CONFIG_TARGET_SOCFPGA_STRATIX10)
> +#include <asm/arch/system_manager_s10.h>
> +#else
> #define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGPINMUX BIT(0)
> #define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO BIT(1)
> #define SYSMGR_ECC_OCRAM_EN BIT(0)
> @@ -88,5 +91,5 @@
>
> #define SYSMGR_GET_BOOTINFO_BSEL(bsel) \
> (((bsel) >> SYSMGR_BOOTINFO_BSEL_SHIFT) & 7)
> -
> +#endif
> #endif /* _SYSTEM_MANAGER_H_ */
> diff --git a/arch/arm/mach-socfpga/include/mach/system_manager_s10.h b/arch/arm/mach-socfpga/include/mach/system_manager_s10.h
> new file mode 100644
> index 0000000..813dff2
> --- /dev/null
> +++ b/arch/arm/mach-socfpga/include/mach/system_manager_s10.h
> @@ -0,0 +1,176 @@
> +/* SPDX-License-Identifier: GPL-2.0
> + *
> + * Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
> + *
> + */
> +
> +#ifndef _SYSTEM_MANAGER_S10_
> +#define _SYSTEM_MANAGER_S10_
> +
> +void sysmgr_pinmux_init(void);
> +void populate_sysmgr_fpgaintf_module(void);
> +void populate_sysmgr_pinmux(void);
> +void sysmgr_pinmux_table_sel(const u32 **table, unsigned int *table_len);
> +void sysmgr_pinmux_table_ctrl(const u32 **table, unsigned int *table_len);
> +void sysmgr_pinmux_table_fpga(const u32 **table, unsigned int *table_len);
> +void sysmgr_pinmux_table_delay(const u32 **table, unsigned int *table_len);
> +
> +struct socfpga_system_manager {
> + /* System Manager Module */
> + u32 siliconid1; /* 0x00 */
> + u32 siliconid2;
> + u32 wddbg;
> + u32 _pad_0xc;
> + u32 mpu_status; /* 0x10 */
> + u32 mpu_ace;
> + u32 _pad_0x18_0x1c[2];
> + u32 dma; /* 0x20 */
> + u32 dma_periph;
> + /* SDMMC Controller Group */
> + u32 sdmmcgrp_ctrl;
> + u32 sdmmcgrp_l3master;
> + /* NAND Flash Controller Register Group */
> + u32 nandgrp_bootstrap; /* 0x30 */
> + u32 nandgrp_l3master;
> + /* USB Controller Group */
> + u32 usb0_l3master;
> + u32 usb1_l3master;
> + /* EMAC Group */
> + u32 emac_gbl; /* 0x40 */
> + u32 emac0;
> + u32 emac1;
> + u32 emac2;
> + u32 emac0_ace; /* 0x50 */
> + u32 emac1_ace;
> + u32 emac2_ace;
> + u32 nand_axuser;
> + u32 _pad_0x60_0x64[2]; /* 0x60 */
> + /* FPGA interface Group */
> + u32 fpgaintf_en_1;
> + u32 fpgaintf_en_2;
> + u32 fpgaintf_en_3; /* 0x70 */
> + u32 dma_l3master;
> + u32 etr_l3master;
> + u32 _pad_0x7c;
> + u32 sec_ctrl_slt; /* 0x80 */
> + u32 osc_trim;
> + u32 _pad_0x88_0x8c[2];
> + /* ECC Group */
> + u32 ecc_intmask_value; /* 0x90 */
> + u32 ecc_intmask_set;
> + u32 ecc_intmask_clr;
> + u32 ecc_intstatus_serr;
> + u32 ecc_intstatus_derr; /* 0xa0 */
> + u32 _pad_0xa4_0xac[3];
> + u32 noc_addr_remap; /* 0xb0 */
> + u32 hmc_clk;
> + u32 io_pa_ctrl;
> + u32 _pad_0xbc;
> + /* NOC Group */
> + u32 noc_timeout; /* 0xc0 */
> + u32 noc_idlereq_set;
> + u32 noc_idlereq_clr;
> + u32 noc_idlereq_value;
> + u32 noc_idleack; /* 0xd0 */
> + u32 noc_idlestatus;
> + u32 fpga2soc_ctrl;
> + u32 fpga_config;
> + u32 iocsrclk_gate; /* 0xe0 */
> + u32 gpo;
> + u32 gpi;
> + u32 _pad_0xec;
> + u32 mpu; /* 0xf0 */
> + u32 sdm_hps_spare;
> + u32 hps_sdm_spare;
> + u32 _pad_0xfc_0x1fc[65];
> + /* Boot scratch register group */
> + u32 boot_scratch_cold0; /* 0x200 */
> + u32 boot_scratch_cold1;
> + u32 boot_scratch_cold2;
> + u32 boot_scratch_cold3;
> + u32 boot_scratch_cold4; /* 0x210 */
> + u32 boot_scratch_cold5;
> + u32 boot_scratch_cold6;
> + u32 boot_scratch_cold7;
> + u32 boot_scratch_cold8; /* 0x220 */
> + u32 boot_scratch_cold9;
> + u32 _pad_0x228_0xffc[886];
> + /* Pin select and pin control group */
> + u32 pinsel0[40]; /* 0x1000 */
> + u32 _pad_0x10a0_0x10fc[24];
> + u32 pinsel40[8];
> + u32 _pad_0x1120_0x112c[4];
> + u32 ioctrl0[28];
> + u32 _pad_0x11a0_0x11fc[24];
> + u32 ioctrl28[20];
> + u32 _pad_0x1250_0x12fc[44];
> + /* Use FPGA mux */
> + u32 rgmii0usefpga; /* 0x1300 */
> + u32 rgmii1usefpga;
> + u32 rgmii2usefpga;
> + u32 i2c0usefpga;
> + u32 i2c1usefpga;
> + u32 i2c_emac0_usefpga;
> + u32 i2c_emac1_usefpga;
> + u32 i2c_emac2_usefpga;
> + u32 nandusefpga;
> + u32 _pad_0x1324;
> + u32 spim0usefpga;
> + u32 spim1usefpga;
> + u32 spis0usefpga;
> + u32 spis1usefpga;
> + u32 uart0usefpga;
> + u32 uart1usefpga;
> + u32 mdio0usefpga;
> + u32 mdio1usefpga;
> + u32 mdio2usefpga;
> + u32 _pad_0x134c;
> + u32 jtagusefpga;
> + u32 sdmmcusefpga;
> + u32 hps_osc_clk;
> + u32 _pad_0x135c_0x13fc[41];
> + u32 iodelay0[40];
> + u32 _pad_0x14a0_0x14fc[24];
> + u32 iodelay40[8];
> +
> +};
> +
> +#define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGPINMUX BIT(0)
> +#define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO BIT(1)
> +#define SYSMGR_ECC_OCRAM_EN BIT(0)
> +#define SYSMGR_ECC_OCRAM_SERR BIT(3)
> +#define SYSMGR_ECC_OCRAM_DERR BIT(4)
> +#define SYSMGR_FPGAINTF_USEFPGA 0x1
> +
> +#define SYSMGR_FPGAINTF_NAND BIT(4)
> +#define SYSMGR_FPGAINTF_SDMMC BIT(8)
> +#define SYSMGR_FPGAINTF_SPIM0 BIT(16)
> +#define SYSMGR_FPGAINTF_SPIM1 BIT(24)
> +#define SYSMGR_FPGAINTF_EMAC0 (0x11 << 0)
> +#define SYSMGR_FPGAINTF_EMAC1 (0x11 << 8)
> +#define SYSMGR_FPGAINTF_EMAC2 (0x11 << 16)
> +
> +#define SYSMGR_SDMMC_SMPLSEL_SHIFT 4
> +#define SYSMGR_SDMMC_DRVSEL_SHIFT 0
> +
> +/* EMAC Group Bit definitions */
> +#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII 0x0
> +#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII 0x1
> +#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII 0x2
> +
> +#define SYSMGR_EMACGRP_CTRL_PHYSEL0_LSB 0
> +#define SYSMGR_EMACGRP_CTRL_PHYSEL1_LSB 2
> +#define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK 0x3
> +
> +#define SYSMGR_NOC_H2F_MSK 0x00000001
> +#define SYSMGR_NOC_LWH2F_MSK 0x00000010
> +#define SYSMGR_HMC_CLK_STATUS_MSK 0x00000001
> +
> +#define SYSMGR_DMA_IRQ_NS 0xFF000000
> +#define SYSMGR_DMA_MGR_NS 0x00010000
> +
> +#define SYSMGR_DMAPERIPH_ALL_NS 0xFFFFFFFF
> +
> +#define SYSMGR_WDDBG_PAUSE_ALL_CPU 0x0F0F0F0F
> +
> +#endif /* _SYSTEM_MANAGER_S10_ */
> diff --git a/arch/arm/mach-socfpga/system_manager_s10.c b/arch/arm/mach-socfpga/system_manager_s10.c
> new file mode 100644
> index 0000000..122828c
> --- /dev/null
> +++ b/arch/arm/mach-socfpga/system_manager_s10.c
> @@ -0,0 +1,91 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
> + *
> + */
> +
> +#include <common.h>
> +#include <asm/io.h>
> +#include <asm/arch/system_manager.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +static struct socfpga_system_manager *sysmgr_regs =
> + (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
> +
> +/*
> + * 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(&sysmgr_regs->nandusefpga) == SYSMGR_FPGAINTF_USEFPGA)
> + handoff_val |= SYSMGR_FPGAINTF_NAND;
> + if (readl(&sysmgr_regs->sdmmcusefpga) == SYSMGR_FPGAINTF_USEFPGA)
> + handoff_val |= SYSMGR_FPGAINTF_SDMMC;
> + 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;
> + writel(handoff_val, &sysmgr_regs->fpgaintf_en_2);
> +
> + handoff_val = 0;
> + if (readl(&sysmgr_regs->rgmii0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
> + handoff_val |= SYSMGR_FPGAINTF_EMAC0;
> + if (readl(&sysmgr_regs->rgmii1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
> + handoff_val |= SYSMGR_FPGAINTF_EMAC1;
> + if (readl(&sysmgr_regs->rgmii2usefpga) == SYSMGR_FPGAINTF_USEFPGA)
> + handoff_val |= SYSMGR_FPGAINTF_EMAC2;
> + writel(handoff_val, &sysmgr_regs->fpgaintf_en_3);
> +}
> +
> +/*
> + * Configure all the pin muxes
> + */
> +void populate_sysmgr_pinmux(void)
> +{
> + const u32 *sys_mgr_table_u32;
> + unsigned int len, i;
> +
> + /* setup the pin sel */
> + sysmgr_pinmux_table_sel(&sys_mgr_table_u32, &len);
> + for (i = 0; i < len; i = i + 2) {
> + writel(sys_mgr_table_u32[i + 1],
> + sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->pinsel0[0]);
> + }
> +
> + /* setup the pin ctrl */
> + sysmgr_pinmux_table_ctrl(&sys_mgr_table_u32, &len);
> + for (i = 0; i < len; i = i + 2) {
> + writel(sys_mgr_table_u32[i + 1],
> + sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->ioctrl0[0]);
> + }
> +
> + /* setup the fpga use */
> + sysmgr_pinmux_table_fpga(&sys_mgr_table_u32, &len);
> + for (i = 0; i < len; i = i + 2) {
> + writel(sys_mgr_table_u32[i + 1],
> + sys_mgr_table_u32[i] +
> + (u8 *)&sysmgr_regs->rgmii0usefpga);
> + }
> +
> + /* setup the IO delay */
> + sysmgr_pinmux_table_delay(&sys_mgr_table_u32, &len);
> + for (i = 0; i < len; i = i + 2) {
> + writel(sys_mgr_table_u32[i + 1],
> + sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->iodelay0[0]);
> + }
> +}
> diff --git a/arch/arm/mach-socfpga/wrap_pinmux_config_s10.c b/arch/arm/mach-socfpga/wrap_pinmux_config_s10.c
> new file mode 100644
> index 0000000..0b497ec
> --- /dev/null
> +++ b/arch/arm/mach-socfpga/wrap_pinmux_config_s10.c
> @@ -0,0 +1,56 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
> + *
> + */
> +
> +#include <common.h>
> +#include <errno.h>
> +#include <asm/io.h>
> +#include <asm/arch/handoff_s10.h>
> +
> +static void sysmgr_pinmux_handoff_read(void *handoff_address,
> + const u32 **table,
> + unsigned int *table_len)
> +{
> + unsigned int handoff_entry = (swab32(readl(handoff_address +
> + S10_HANDOFF_OFFSET_LENGTH)) -
> + S10_HANDOFF_OFFSET_DATA) /
> + sizeof(unsigned int);
> + unsigned int handoff_chunk[handoff_entry], temp, i;
> +
> + if (swab32(readl(S10_HANDOFF_MUX)) == S10_HANDOFF_MAGIC_MUX) {
> + /* using handoff from Quartus tools if exists */
> + for (i = 0; i < handoff_entry; i++) {
> + temp = readl(handoff_address +
> + S10_HANDOFF_OFFSET_DATA + (i * 4));
> + handoff_chunk[i] = swab32(temp);
> + }
> + *table = handoff_chunk;
Here you are passing a variable that only exists on the stack to the
caller. Shouldn't you either define handoff_chunk as static or malloc it?
Indicated by CppCheck as
[arch/arm/mach-socfpga/wrap_pinmux_config_s10.c:29]:
(error) Address of local auto-variable assigned to a function parameter.
Best regards
Heinrich
> + *table_len = ARRAY_SIZE(handoff_chunk);
> + }
> +}
> +
> +void sysmgr_pinmux_table_sel(const u32 **table, unsigned int *table_len)
> +{
> + sysmgr_pinmux_handoff_read((void *)S10_HANDOFF_MUX, table,
> + table_len);
> +}
> +
> +void sysmgr_pinmux_table_ctrl(const u32 **table, unsigned int *table_len)
> +{
> + sysmgr_pinmux_handoff_read((void *)S10_HANDOFF_IOCTL, table,
> + table_len);
> +}
> +
> +void sysmgr_pinmux_table_fpga(const u32 **table, unsigned int *table_len)
> +{
> + sysmgr_pinmux_handoff_read((void *)S10_HANDOFF_FPGA, table,
> + table_len);
> +}
> +
> +void sysmgr_pinmux_table_delay(const u32 **table, unsigned int *table_len)
> +{
> + sysmgr_pinmux_handoff_read((void *)S10_HANODFF_DELAY, table,
> + table_len);
> +}
>
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