[PATCH v3 4/4] arm: kirkwood: Pogoplug-V4 : Add board implementation files

Tony Dinh
2022-01-18T07:00:56Z

Note: currently the fdt_get_phy_addr function in this file is
duplicate in this board and many other Kirkwood boards
(eg. Sheevaplug, GoFlex Home, etc.). This function is being
factored out into common area by another patch. And because it
was written for flattree only, the patch is being rewritten to
use livetree calls.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
---

Changes in v3:
- Squash board file small patches into one patch

Changes in v2:
- Move constants to .c file and remove header file

board/cloudengines/pogo_v4/MAINTAINERS | 6 +
board/cloudengines/pogo_v4/Makefile | 10 ++
board/cloudengines/pogo_v4/kwbimage.cfg | 148 ++++++++++++++++
board/cloudengines/pogo_v4/pogo_v4.c | 220 ++++++++++++++++++++++++
4 files changed, 384 insertions(+)
create mode 100644 board/cloudengines/pogo_v4/MAINTAINERS
create mode 100644 board/cloudengines/pogo_v4/Makefile
create mode 100644 board/cloudengines/pogo_v4/kwbimage.cfg
create mode 100644 board/cloudengines/pogo_v4/pogo_v4.c

diff --git a/board/cloudengines/pogo_v4/MAINTAINERS b/board/cloudengines/pogo_v4/MAINTAINERS
new file mode 100644
index 0000000000..35fd7858b7
--- /dev/null
+++ b/board/cloudengines/pogo_v4/MAINTAINERS
@@ -0,0 +1,6 @@
+POGO_V4 BOARD
+M: Tony Dinh <mibodhi@gmail.com>
+S: Maintained
+F: board/cloudengines/pogo_v4/
+F: include/configs/pogo_v4.h
+F: configs/pogo_v4_defconfig
diff --git a/board/cloudengines/pogo_v4/Makefile b/board/cloudengines/pogo_v4/Makefile
new file mode 100644
index 0000000000..511bf5ff7e
--- /dev/null
+++ b/board/cloudengines/pogo_v4/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2014-2021 Tony Dinh <mibodhi@gmail.com>
+#
+# Based on
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+#
+
+obj-y := pogo_v4.o
diff --git a/board/cloudengines/pogo_v4/kwbimage.cfg b/board/cloudengines/pogo_v4/kwbimage.cfg
new file mode 100644
index 0000000000..f6294fe313
--- /dev/null
+++ b/board/cloudengines/pogo_v4/kwbimage.cfg
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2012
+# David Purdy <david.c.purdy@gmail.com>
+#
+# Based on Kirkwood support:
+# (C) Copyright 2009
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla <at> marvell.com>
+
+# Boot Media configurations (DONE)
+BOOT_FROM nand
+NAND_ECC_MODE default
+NAND_PAGE_SIZE 0x0800
+
+# SOC registers configuration using bootrom header extension
+# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
+
+# Configure RGMII-0 interface pad voltage to 1.8V (SHOULD BE SAME)
+DATA 0xffd100e0 0x1b1b1b9b
+
+#Dram initalization for SINGLE x16 CL=3 @ 200MHz (need CL=3 @ 200MHz?)
+DATA 0xffd01400 0x43000618 # DDR Configuration register
+# bit13-0: 0x200 (200 DDR2 clks refresh rate)
+# bit23-14: zero
+# bit24: 1= enable exit self refresh mode on DDR access
+# bit25: 1 required
+# bit29-26: zero
+# bit31-30: 01
+
+DATA 0xffd01404 0x34143000 # DDR Controller Control Low
+# bit 4: 0=addr/cmd in smame cycle
+# bit 5: 0=clk is driven during self refresh, we don't care for APX
+# bit 6: 0=use recommended falling edge of clk for addr/cmd
+# bit14: 0=input buffer always powered up
+# bit18: 1=cpu lock transaction enabled
+# bit23-20: 3=recommended value for CL=3 and STARTBURST_DEL disabled bit31=0
+# bit27-24: 6= CL+3, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
+# bit30-28: 3 required
+# bit31: 0=no additional STARTBURST delay
+
+DATA 0xffd01408 0x11012227 # DDR Timing (Low) (active cycles value +1)
+# bit3-0: TRAS lsbs
+# bit7-4: TRCD
+# bit11- 8: TRP
+# bit15-12: TWR
+# bit19-16: TWTR
+# bit20: TRAS msb
+# bit23-21: 0x0
+# bit27-24: TRRD
+# bit31-28: TRTP
+
+DATA 0xffd0140c 0x00000819 # DDR Timing (High)
+# bit6-0: TRFC
+# bit8-7: TR2R
+# bit10-9: TR2W
+# bit12-11: TW2W
+# bit31-13: zero required
+
+DATA 0xffd01410 0x00000001 # DDR Address Control (changed to Dockstar vals)
+# bit1-0: 00, Cs0width=x16
+# bit3-2: 10, Cs0size=512Mb
+# bit5-4: 00, Cs2width=nonexistent
+# bit7-6: 00, Cs1size =nonexistent
+# bit9-8: 00, Cs2width=nonexistent
+# bit11-10: 00, Cs2size =nonexistent
+# bit13-12: 00, Cs3width=nonexistent
+# bit15-14: 00, Cs3size =nonexistent
+# bit16: 0, Cs0AddrSel
+# bit17: 0, Cs1AddrSel
+# bit18: 0, Cs2AddrSel
+# bit19: 0, Cs3AddrSel
+# bit31-20: 0 required
+
+DATA 0xffd01414 0x00000000 # DDR Open Pages Control
+# bit0: 0, OpenPage enabled
+# bit31-1: 0 required
+
+DATA 0xffd01418 0x00000000 # DDR Operation
+# bit3-0: 0x0, DDR cmd
+# bit31-4: 0 required
+
+DATA 0xffd0141c 0x00000632 # DDR Mode
+# bit2-0: 2, BurstLen=2 required
+# bit3: 0, BurstType=0 required
+# bit6-4: 4, CL=5 (<===== change to CL=3 ?)
+# bit7: 0, TestMode=0 normal
+# bit8: 0, DLL reset=0 normal
+# bit11-9: 6, auto-precharge write recovery ????????????
+# bit12: 0, PD must be zero
+# bit31-13: 0 required
+
+DATA 0xffd01420 0x00000040 # DDR Extended Mode
+# bit0: 0, DDR DLL enabled
+# bit1: 0, DDR drive strenght normal
+# bit2: 0, DDR ODT control lsd (disabled)
+# bit5-3: 000, required
+# bit6: 1, DDR ODT control msb, (disabled)
+# bit9-7: 000, required
+# bit10: 0, differential DQS enabled
+# bit11: 0, required
+# bit12: 0, DDR output buffer enabled
+# bit31-13: 0 required
+
+DATA 0xffd01424 0x0000F07F # DDR Controller Control High
+# bit2-0: 111, required
+# bit3 : 1 , MBUS Burst Chop disabled
+# bit6-4: 111, required
+# bit7 : 0
+# bit8 : 0 , no sample stage
+# bit9 : 0 , no half clock cycle addition to dataout
+# bit10 : 0 , 1/4 clock cycle skew enabled for addr/ctl signals
+# bit11 : 0 , 1/4 clock cycle skew disabled for write mesh
+# bit15-12: 1111 required
+# bit31-16: 0 required
+
+DATA 0xffd01428 0x00085520 # DDR2 ODT Read Timing (default values)
+DATA 0xffd0147c 0x00008552 # DDR2 ODT Write Timing (default values)
+
+DATA 0xFFD01500 0x00000000 # CS[0]n Base address to 0x0
+DATA 0xFFD01504 0x07FFFFF1 # CS[0]n Size
+# bit0: 1, Window enabled
+# bit1: 0, Write Protect disabled
+# bit3-2: 00, CS0 hit selected
+# bit23-4: ones, required
+# bit31-24: 0x07, Size (i.e. 128MB)
+
+DATA 0xFFD0150C 0x00000000 # CS[1]n Size, window disabled
+DATA 0xFFD01514 0x00000000 # CS[2]n Size, window disabled
+DATA 0xFFD0151C 0x00000000 # CS[3]n Size, window disabled
+
+DATA 0xffd01494 0x00030000 # DDR ODT Control (Low) (DONE)
+# bit3-0: 2, ODT0Rd, MODT[0] asserted during read from DRAM CS1
+# bit7-4: 1, ODT0Rd, MODT[0] asserted during read from DRAM CS0
+# bit19-16:2, ODT0Wr, MODT[0] asserted during write to DRAM CS1
+# bit23-20:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
+
+DATA 0xffd01498 0x00000000 # DDR ODT Control (High) (DONE)
+# bit1-0: 00, ODT0 controlled by ODT Control (low) register above
+# bit3-2: 01, ODT1 active NEVER!
+# bit31-4: zero, required
+
+DATA 0xffd0149c 0x0000e803 # CPU ODT Control (DONE)
+DATA 0xffd01480 0x00000001 # DDR Initialization Control (DONE)
+#bit0=1, enable DDR init upon this register write
+
+# End of Header extension
+DATA 0x0 0x0
diff --git a/board/cloudengines/pogo_v4/pogo_v4.c b/board/cloudengines/pogo_v4/pogo_v4.c
new file mode 100644
index 0000000000..c85de0b22e
--- /dev/null
+++ b/board/cloudengines/pogo_v4/pogo_v4.c
@@ -0,0 +1,220 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2014-2021 Tony Dinh <mibodhi@gmail.com>
+ *
+ * Based on
+ * Copyright (C) 2012 David Purdy <david.c.purdy@gmail.com>
+ *
+ * Based on Kirkwood support:
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include <asm/arch/mpp.h>
+#include <asm/io.h>
+#include <asm/arch/gpio.h>
+#include <asm/mach-types.h>
+#include <bootstage.h>
+#include <command.h>
+#include <init.h>
+#include <linux/bitops.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* GPIO configuration */
+#define POGO_V4_OE_LOW (~(0))
+#define POGO_V4_OE_HIGH (~(0))
+#define POGO_V4_OE_VAL_LOW BIT(29)
+#define POGO_V4_OE_VAL_HIGH 0
+
+/* PHY related */
+#define MV88E1116_LED_FCTRL_REG 10
+#define MV88E1116_CPRSP_CR3_REG 21
+#define MV88E1116_MAC_CTRL_REG 21
+#define MV88E1116_PGADR_REG 22
+#define MV88E1116_RGMII_TXTM_CTRL BIT(4)
+#define MV88E1116_RGMII_RXTM_CTRL BIT(5)
+
+/* button */
+#define BTN_EJECT 29
+
+int board_early_init_f(void)
+{
+ /*
+ * default gpio configuration
+ * There are maximum 64 gpios controlled through 2 sets of registers
+ * the below configuration configures mainly initial LED status
+ */
+ mvebu_config_gpio(POGO_V4_OE_VAL_LOW,
+ POGO_V4_OE_VAL_HIGH,
+ POGO_V4_OE_LOW, POGO_V4_OE_HIGH);
+
+ /* Multi-Purpose Pins Functionality configuration */
+ u32 kwmpp_config[] = {
+ MPP0_NF_IO2,
+ MPP1_NF_IO3,
+ MPP2_NF_IO4,
+ MPP3_NF_IO5,
+ MPP4_NF_IO6,
+ MPP5_NF_IO7,
+ MPP6_SYSRST_OUTn,
+ MPP7_GPO,
+ MPP8_TW_SDA,
+ MPP9_TW_SCK,
+ MPP10_UART0_TXD,
+ MPP11_UART0_RXD,
+ MPP12_SD_CLK,
+ MPP13_SD_CMD,
+ MPP14_SD_D0,
+ MPP15_SD_D1,
+ MPP16_SD_D2,
+ MPP17_SD_D3,
+ MPP18_NF_IO0,
+ MPP19_NF_IO1,
+ MPP20_SATA1_ACTn,
+ MPP21_SATA0_ACTn,
+ MPP22_GPIO, /* Green LED */
+ MPP23_GPIO,
+ MPP24_GPIO, /* Red LED */
+ MPP25_GPIO,
+ MPP26_GPIO,
+ MPP27_GPIO,
+ MPP28_GPIO,
+ MPP29_GPIO, /* Eject button */
+ MPP30_GPIO,
+ MPP31_GPIO,
+ MPP32_GPIO,
+ MPP33_GPIO,
+ MPP34_GPIO,
+ MPP35_GPIO, /* FR6192 has only 36 GPIOs */
+ 0
+ };
+ kirkwood_mpp_conf(kwmpp_config, NULL);
+
+ return 0;
+}
+
+int board_late_init(void)
+{
+ /* Do late init to ensure successful enumeration of XHCI devices */
+ pci_init();
+ return 0;
+}
+
+int board_init(void)
+{
+ /* Boot parameters address */
+ gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+ return 0;
+}
+
+int fdt_get_phy_addr(const char *path)
+{
+ const void *fdt = gd->fdt_blob;
+ const u32 *reg;
+ const u32 *val;
+ int node, phandle, addr;
+
+ /* Find the node by its full path */
+ node = fdt_path_offset(fdt, path);
+ if (node >= 0) {
+ /* Look up phy-handle */
+ val = fdt_getprop(fdt, node, "phy-handle", NULL);
+ if (!val) {
+ /* Look up phy (deprecated property for phy handle) */
+ val = fdt_getprop(fdt, node, "phy", NULL);
+ }
+ if (val) {
+ phandle = fdt32_to_cpu(*val);
+ if (!phandle)
+ return -FDT_ERR_NOTFOUND;
+
+ /* Follow it to its node */
+ node = fdt_node_offset_by_phandle(fdt, phandle);
+ if (node) {
+ /* Look up reg */
+ reg = fdt_getprop(fdt, node, "reg", NULL);
+ if (reg) {
+ addr = fdt32_to_cpu(*reg);
+ return addr;
+ }
+ }
+ }
+ }
+ return -FDT_ERR_NOTFOUND;
+}
+
+#if defined(CONFIG_RESET_PHY_R)
+/* Configure and initialize PHY */
+void reset_phy(void)
+{
+ u16 reg;
+ int phyaddr;
+ char *name = "ethernet-controller@72000";
+ char *eth0_path = "/ocp@f1000000/ethernet-controller@72000";
+
+ if (miiphy_set_current_dev(name))
+ return;
+
+ phyaddr = fdt_get_phy_addr(eth0_path);
+ if (phyaddr < 0)
+ return;
+
+ /*
+ * Enable RGMII delay on Tx and Rx for CPU port
+ * Ref: sec 4.7.2 of chip datasheet
+ */
+ miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2);
+ miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, &reg);
+ reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
+ miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
+ miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0);
+
+ /* reset the phy */
+ miiphy_reset(name, phyaddr);
+
+ printf("88E1116 Initialized on %s\n", name);
+}
+#endif /* CONFIG_RESET_PHY_R */
+
+#if CONFIG_IS_ENABLED(BOOTSTAGE)
+#define GREEN_LED BIT(22)
+#define RED_LED BIT(24)
+#define BOTH_LEDS (GREEN_LED | RED_LED)
+#define NEITHER_LED 0
+
+static void set_leds(u32 leds, u32 blinking)
+{
+ struct kwgpio_registers *r;
+ u32 oe;
+ u32 bl;
+
+ r = (struct kwgpio_registers *)MVEBU_GPIO0_BASE;
+ oe = readl(&r->oe) | BOTH_LEDS;
+ writel(oe & ~leds, &r->oe); /* active low */
+ bl = readl(&r->blink_en) & ~BOTH_LEDS;
+ writel(bl | blinking, &r->blink_en);
+}
+
+void show_boot_progress(int val)
+{
+ switch (val) {
+ case BOOTSTAGE_ID_RUN_OS: /* booting Linux */
+ set_leds(BOTH_LEDS, NEITHER_LED);
+ break;
+ case BOOTSTAGE_ID_NET_ETH_START: /* Ethernet initialization */
+ set_leds(GREEN_LED, GREEN_LED);
+ break;
+ default:
+ if (val < 0) /* error */
+ set_leds(RED_LED, RED_LED);
+ break;
+ }
+}
+#endif
--
2.30.2