From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/board/spear/x600/Kconfig | 18 +++
roms/u-boot/board/spear/x600/MAINTAINERS | 6 +
roms/u-boot/board/spear/x600/Makefile | 11 ++
roms/u-boot/board/spear/x600/fpga.c | 265 +++++++++++++++++++++++++++++++
roms/u-boot/board/spear/x600/fpga.h | 6 +
roms/u-boot/board/spear/x600/x600.c | 150 +++++++++++++++++
6 files changed, 456 insertions(+)
create mode 100644 roms/u-boot/board/spear/x600/Kconfig
create mode 100644 roms/u-boot/board/spear/x600/MAINTAINERS
create mode 100644 roms/u-boot/board/spear/x600/Makefile
create mode 100644 roms/u-boot/board/spear/x600/fpga.c
create mode 100644 roms/u-boot/board/spear/x600/fpga.h
create mode 100644 roms/u-boot/board/spear/x600/x600.c
(limited to 'roms/u-boot/board/spear/x600')
diff --git a/roms/u-boot/board/spear/x600/Kconfig b/roms/u-boot/board/spear/x600/Kconfig
new file mode 100644
index 000000000..59f2b1ef5
--- /dev/null
+++ b/roms/u-boot/board/spear/x600/Kconfig
@@ -0,0 +1,18 @@
+if TARGET_X600
+
+config SPL_LDSCRIPT
+ default "arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds"
+
+config SYS_BOARD
+ default "x600"
+
+config SYS_VENDOR
+ default "spear"
+
+config SYS_SOC
+ default "spear"
+
+config SYS_CONFIG_NAME
+ default "x600"
+
+endif
diff --git a/roms/u-boot/board/spear/x600/MAINTAINERS b/roms/u-boot/board/spear/x600/MAINTAINERS
new file mode 100644
index 000000000..bff682494
--- /dev/null
+++ b/roms/u-boot/board/spear/x600/MAINTAINERS
@@ -0,0 +1,6 @@
+X600 BOARD
+M: Stefan Roese <sr@denx.de>
+S: Maintained
+F: board/spear/x600/
+F: include/configs/x600.h
+F: configs/x600_defconfig
diff --git a/roms/u-boot/board/spear/x600/Makefile b/roms/u-boot/board/spear/x600/Makefile
new file mode 100644
index 000000000..3ed841577
--- /dev/null
+++ b/roms/u-boot/board/spear/x600/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+
+ifdef CONFIG_SPL_BUILD
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
+obj-y := fpga.o x600.o
+endif
diff --git a/roms/u-boot/board/spear/x600/fpga.c b/roms/u-boot/board/spear/x600/fpga.c
new file mode 100644
index 000000000..5140694b9
--- /dev/null
+++ b/roms/u-boot/board/spear/x600/fpga.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2012 Stefan Roese <sr@denx.de>
+ */
+
+#include <common.h>
+#include <log.h>
+#include <spartan3.h>
+#include <command.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spr_misc.h>
+#include <asm/arch/spr_ssp.h>
+#include <linux/delay.h>
+
+/*
+ * FPGA program pin configuration on X600:
+ *
+ * Only PROG and DONE are connected to GPIOs. INIT is not connected to the
+ * SoC at all. And CLOCK and DATA are connected to the SSP2 port. We use
+ * 16bit serial writes via this SSP port to write the data bits into the
+ * FPGA.
+ */
+#define CONFIG_SYS_FPGA_PROG 2
+#define CONFIG_SYS_FPGA_DONE 3
+
+/*
+ * Set the active-low FPGA reset signal.
+ */
+static void fpga_reset(int assert)
+{
+ /*
+ * On x600 we have no means to toggle the FPGA reset signal
+ */
+ debug("%s:%d: RESET (%d)\n", __func__, __LINE__, assert);
+}
+
+/*
+ * Set the FPGA's active-low SelectMap program line to the specified level
+ */
+static int fpga_pgm_fn(int assert, int flush, int cookie)
+{
+ debug("%s:%d: FPGA PROG (%d)\n", __func__, __LINE__, assert);
+
+ gpio_set_value(CONFIG_SYS_FPGA_PROG, assert);
+
+ return assert;
+}
+
+/*
+ * Test the state of the active-low FPGA INIT line. Return 1 on INIT
+ * asserted (low).
+ */
+static int fpga_init_fn(int cookie)
+{
+ static int state;
+
+ debug("%s:%d: init (state=%d)\n", __func__, __LINE__, state);
+
+ /*
+ * On x600, the FPGA INIT signal is not connected to the SoC.
+ * We can't read the INIT status. Let's return the "correct"
+ * INIT signal state generated via a local state-machine.
+ */
+ if (++state == 1) {
+ return 1;
+ } else {
+ state = 0;
+ return 0;
+ }
+}
+
+/*
+ * Test the state of the active-high FPGA DONE pin
+ */
+static int fpga_done_fn(int cookie)
+{
+ struct ssp_regs *ssp = (struct ssp_regs *)CONFIG_SSP2_BASE;
+
+ /*
+ * Wait for Tx-FIFO to become empty before looking for DONE
+ */
+ while (!(readl(&ssp->sspsr) & SSPSR_TFE))
+ ;
+
+ if (gpio_get_value(CONFIG_SYS_FPGA_DONE))
+ return 1;
+ else
+ return 0;
+}
+
+/*
+ * FPGA pre-configuration function. Just make sure that
+ * FPGA reset is asserted to keep the FPGA from starting up after
+ * configuration.
+ */
+static int fpga_pre_config_fn(int cookie)
+{
+ debug("%s:%d: FPGA pre-configuration\n", __func__, __LINE__);
+ fpga_reset(true);
+
+ return 0;
+}
+
+/*
+ * FPGA post configuration function. Blip the FPGA reset line and then see if
+ * the FPGA appears to be running.
+ */
+static int fpga_post_config_fn(int cookie)
+{
+ int rc = 0;
+
+ debug("%s:%d: FPGA post configuration\n", __func__, __LINE__);
+
+ fpga_reset(true);
+ udelay(100);
+ fpga_reset(false);
+ udelay(100);
+
+ return rc;
+}
+
+static int fpga_clk_fn(int assert_clk, int flush, int cookie)
+{
+ /*
+ * No dedicated clock signal on x600 (data & clock generated)
+ * in SSP interface. So we don't have to do anything here.
+ */
+ return assert_clk;
+}
+
+static int fpga_wr_fn(int assert_write, int flush, int cookie)
+{
+ struct ssp_regs *ssp = (struct ssp_regs *)CONFIG_SSP2_BASE;
+ static int count;
+ static u16 data;
+
+ /*
+ * First collect 16 bits of data
+ */
+ data = data << 1;
+ if (assert_write)
+ data |= 1;
+
+ /*
+ * If 16 bits are not available, return for more bits
+ */
+ count++;
+ if (count != 16)
+ return assert_write;
+
+ count = 0;
+
+ /*
+ * Wait for Tx-FIFO to become ready
+ */
+ while (!(readl(&ssp->sspsr) & SSPSR_TNF))
+ ;
+
+ /* Send 16 bits to FPGA via SSP bus */
+ writel(data, &ssp->sspdr);
+
+ return assert_write;
+}
+
+static xilinx_spartan3_slave_serial_fns x600_fpga_fns = {
+ fpga_pre_config_fn,
+ fpga_pgm_fn,
+ fpga_clk_fn,
+ fpga_init_fn,
+ fpga_done_fn,
+ fpga_wr_fn,
+ fpga_post_config_fn,
+};
+
+static xilinx_desc fpga[CONFIG_FPGA_COUNT] = {
+ XILINX_XC3S1200E_DESC(slave_serial, &x600_fpga_fns, 0)
+};
+
+/*
+ * Initialize the SelectMap interface. We assume that the mode and the
+ * initial state of all of the port pins have already been set!
+ */
+static void fpga_serialslave_init(void)
+{
+ debug("%s:%d: Initialize serial slave interface\n", __func__, __LINE__);
+ fpga_pgm_fn(false, false, 0); /* make sure program pin is inactive */
+}
+
+static int expi_setup(int freq)
+{
+ struct misc_regs *misc = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+ int pll2_m, pll2_n, pll2_p, expi_x, expi_y;
+
+ pll2_m = (freq * 2) / 1000;
+ pll2_n = 15;
+ pll2_p = 1;
+ expi_x = 1;
+ expi_y = 2;
+
+ /*
+ * Disable reset, Low compression, Disable retiming, Enable Expi,
+ * Enable soft reset, DMA, PLL2, Internal
+ */
+ writel(EXPI_CLK_CFG_LOW_COMPR | EXPI_CLK_CFG_CLK_EN | EXPI_CLK_CFG_RST |
+ EXPI_CLK_SYNT_EN | EXPI_CLK_CFG_SEL_PLL2 |
+ EXPI_CLK_CFG_INT_CLK_EN | (expi_y << 16) | (expi_x << 24),
+ &misc->expi_clk_cfg);
+
+ /*
+ * 6 uA, Internal feedback, 1st order, Non-dithered, Sample Parameters,
+ * Enable PLL2, Disable reset
+ */
+ writel((pll2_m << 24) | (pll2_p << 8) | (pll2_n), &misc->pll2_frq);
+ writel(PLL2_CNTL_6UA | PLL2_CNTL_SAMPLE | PLL2_CNTL_ENABLE |
+ PLL2_CNTL_RESETN | PLL2_CNTL_LOCK, &misc->pll2_cntl);
+
+ /*
+ * Disable soft reset
+ */
+ clrbits_le32(&misc->expi_clk_cfg, EXPI_CLK_CFG_RST);
+
+ return 0;
+}
+
+/*
+ * Initialize the fpga
+ */
+int x600_init_fpga(void)
+{
+ struct ssp_regs *ssp = (struct ssp_regs *)CONFIG_SSP2_BASE;
+ struct misc_regs *misc = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+
+ /* Enable SSP2 clock */
+ writel(readl(&misc->periph1_clken) | MISC_SSP2ENB | MISC_GPIO4ENB,
+ &misc->periph1_clken);
+
+ /* Set EXPI clock to 45 MHz */
+ expi_setup(45000);
+
+ /* Configure GPIO directions */
+ gpio_direction_output(CONFIG_SYS_FPGA_PROG, 0);
+ gpio_direction_input(CONFIG_SYS_FPGA_DONE);
+
+ writel(SSPCR0_DSS_16BITS, &ssp->sspcr0);
+ writel(SSPCR1_SSE, &ssp->sspcr1);
+
+ /*
+ * Set lowest prescale divisor value (CPSDVSR) of 2 for max download
+ * speed.
+ *
+ * Actual data clock rate is: 80MHz / (CPSDVSR * (SCR + 1))
+ * With CPSDVSR at 2 and SCR at 0, the maximume clock rate is 40MHz.
+ */
+ writel(2, &ssp->sspcpsr);
+
+ fpga_init();
+ fpga_serialslave_init();
+
+ debug("%s:%d: Adding fpga 0\n", __func__, __LINE__);
+ fpga_add(fpga_xilinx, &fpga[0]);
+
+ return 0;
+}
diff --git a/roms/u-boot/board/spear/x600/fpga.h b/roms/u-boot/board/spear/x600/fpga.h
new file mode 100644
index 000000000..f5e6f31a4
--- /dev/null
+++ b/roms/u-boot/board/spear/x600/fpga.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2012 Stefan Roese <sr@denx.de>
+ */
+
+int x600_init_fpga(void);
diff --git a/roms/u-boot/board/spear/x600/x600.c b/roms/u-boot/board/spear/x600/x600.c
new file mode 100644
index 000000000..9c30581ec
--- /dev/null
+++ b/roms/u-boot/board/spear/x600/x600.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * Copyright (C) 2012 Stefan Roese <sr@denx.de>
+ */
+
+#include <common.h>
+#include <flash.h>
+#include <init.h>
+#include <micrel.h>
+#include <nand.h>
+#include <net.h>
+#include <netdev.h>
+#include <phy.h>
+#include <rtc.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spr_defs.h>
+#include <asm/arch/spr_misc.h>
+#include <linux/mtd/fsmc_nand.h>
+#include "fpga.h"
+
+static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
+
+int board_init(void)
+{
+ /*
+ * X600 is equipped with an M41T82 RTC. This RTC has the
+ * HT bit (Halt Update), which needs to be cleared upon
+ * power-up. Otherwise the RTC is halted.
+ */
+ rtc_reset();
+
+ return spear_board_init(MACH_TYPE_SPEAR600);
+}
+
+int board_late_init(void)
+{
+ /*
+ * Monitor and env protection on by default
+ */
+ flash_protect(FLAG_PROTECT_SET,
+ CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE +
+ CONFIG_SYS_SPL_LEN + CONFIG_SYS_MONITOR_LEN +
+ 2 * CONFIG_ENV_SECT_SIZE - 1,
+ &flash_info[0]);
+
+ /* Init FPGA subsystem */
+ x600_init_fpga();
+
+ return 0;
+}
+
+/*
+ * board_nand_init - Board specific NAND initialization
+ * @nand: mtd private chip structure
+ *
+ * Called by nand_init_chip to initialize the board specific functions
+ */
+
+void board_nand_init(void)
+{
+ struct misc_regs *const misc_regs_p =
+ (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+ struct nand_chip *nand = &nand_chip[0];
+
+ if (!(readl(&misc_regs_p->auto_cfg_reg) & MISC_NANDDIS))
+ fsmc_nand_init(nand);
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+ unsigned short id1, id2;
+
+ /* check whether KSZ9031 or AR8035 has to be configured */
+ id1 = phy_read(phydev, MDIO_DEVAD_NONE, 2);
+ id2 = phy_read(phydev, MDIO_DEVAD_NONE, 3);
+
+ if ((id1 == 0x22) && ((id2 & 0xFFF0) == 0x1620)) {
+ /* PHY configuration for Micrel KSZ9031 */
+ printf("PHY KSZ9031 detected - ");
+
+ phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, 0x1c00);
+
+ /* control data pad skew - devaddr = 0x02, register = 0x04 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC,
+ 0x0000);
+ /* rx data pad skew - devaddr = 0x02, register = 0x05 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC,
+ 0x0000);
+ /* tx data pad skew - devaddr = 0x02, register = 0x05 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC,
+ 0x0000);
+ /* gtx and rx clock pad skew - devaddr = 0x02, reg = 0x08 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC,
+ 0x03FF);
+ } else {
+ /* PHY configuration for Vitesse VSC8641 */
+ printf("PHY VSC8641 detected - ");
+
+ /* Extended PHY control 1, select GMII */
+ phy_write(phydev, MDIO_DEVAD_NONE, 23, 0x0020);
+
+ /* Software reset necessary after GMII mode selction */
+ phy_reset(phydev);
+
+ /* Enable extended page register access */
+ phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0001);
+
+ /* 17e: Enhanced LED behavior, needs to be written twice */
+ phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x09ff);
+ phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x09ff);
+
+ /* 16e: Enhanced LED method select */
+ phy_write(phydev, MDIO_DEVAD_NONE, 16, 0xe0ea);
+
+ /* Disable extended page register access */
+ phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0000);
+
+ /* Enable clock output pin */
+ phy_write(phydev, MDIO_DEVAD_NONE, 18, 0x0049);
+ }
+
+ if (phydev->drv->config)
+ phydev->drv->config(phydev);
+
+ return 0;
+}
+
+int board_eth_init(struct bd_info *bis)
+{
+ int ret = 0;
+
+ if (designware_initialize(CONFIG_SPEAR_ETHBASE,
+ PHY_INTERFACE_MODE_GMII) >= 0)
+ ret++;
+
+ return ret;
+}
--
cgit