mips: octeon: Add minimal Octeon 3 EBB7304 EVK support

This patch adds very basic minimal support for the Marvell Octeon 3
CN73xx based EBB7304 EVK. Please note that the basic Octeon port does
not support DDR3/4 initialization yet. To still use U-Boot on with this
port, the L2 cache (4MiB) is used as RAM. This way, U-Boot can boot
to the prompt on this board.

Supported devices:
- UART
- reset
- CFI parallel NOR flash

Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index f711e9fb59c14d57b8ee591126245e30b226369c..dc85901dcaaed8fedd0dc950f1784b769d2583f0 100644 (file)
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -18,6 +18,7 @@ dtb-$(CONFIG_BOARD_COMTREND_VR3032U) += comtrend,vr-3032u.dtb
 dtb-$(CONFIG_BOARD_COMTREND_WAP5813N) += comtrend,wap-5813n.dtb
 dtb-$(CONFIG_BOARD_HUAWEI_HG556A) += huawei,hg556a.dtb
 dtb-$(CONFIG_BOARD_MT7628_RFB) += mediatek,mt7628-rfb.dtb
+dtb-$(CONFIG_TARGET_OCTEON_EBB7304) += mrvl,octeon-ebb7304.dtb
 dtb-$(CONFIG_BOARD_NETGEAR_CG3100D) += netgear,cg3100d.dtb
 dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
 dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,f@st1704.dtb

diff --git a/arch/mips/dts/mrvl,octeon-ebb7304.dts b/arch/mips/dts/mrvl,octeon-ebb7304.dts
new file mode 100644 (file)
index 0000000..4e9c2de
--- /dev/null
+++ b/arch/mips/dts/mrvl,octeon-ebb7304.dts
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Marvell / Cavium Inc. EVB CN7300
+ */
+
+/dts-v1/;
+
+/include/ "mrvl,cn73xx.dtsi"
+
+/ {
+       model = "cavium,ebb7304";
+       compatible = "cavium,ebb7304";
+
+       aliases {
+               serial0 = &uart0;
+       };
+
+       chosen {
+               stdout-path = &uart0;
+       };
+};
+
+&bootbus {
+       /*
+        * bootbus CS0 for CFI flash is remapped (0x1fc0.0000 -> 1f40.0000)
+        * as the initial size is too small for the 8MiB flash device
+        */
+       ranges = <0 0  0       0x1f400000  0xc00000>,
+                <1 0  0x10000 0x10000000  0>,
+                <2 0  0x10000 0x20000000  0>,
+                <3 0  0x10000 0x30000000  0>,
+                <4 0  0       0x1d020000  0x10000>,
+                <5 0  0x10000 0x50000000  0>,
+                <6 0  0x10000 0x60000000  0>,
+                <7 0  0x10000 0x70000000  0>;
+
+       cavium,cs-config@0 {
+               compatible = "cavium,octeon-3860-bootbus-config";
+               cavium,cs-index = <0>;
+               cavium,t-adr  = <10>;
+               cavium,t-ce   = <50>;
+               cavium,t-oe   = <50>;
+               cavium,t-we   = <35>;
+               cavium,t-rd-hld = <25>;
+               cavium,t-wr-hld = <35>;
+               cavium,t-pause  = <0>;
+               cavium,t-wait   = <50>;
+               cavium,t-page   = <30>;
+               cavium,t-rd-dly = <0>;
+               cavium,page-mode = <1>;
+               cavium,pages     = <8>;
+               cavium,bus-width = <8>;
+       };
+
+       cavium,cs-config@4 {
+               compatible = "cavium,octeon-3860-bootbus-config";
+               cavium,cs-index = <4>;
+               cavium,t-adr  = <10>;
+               cavium,t-ce   = <10>;
+               cavium,t-oe   = <160>;
+               cavium,t-we   = <100>;
+               cavium,t-rd-hld = <10>;
+               cavium,t-wr-hld = <0>;
+               cavium,t-pause  = <50>;
+               cavium,t-wait   = <50>;
+               cavium,t-page   = <10>;
+               cavium,t-rd-dly = <10>;
+               cavium,pages     = <0>;
+               cavium,bus-width = <8>;
+       };
+
+       flash0: nor@0,0 {
+               compatible = "cfi-flash";
+               reg = <0 0 0x800000>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+               partition@0 {
+                       label = "bootloader";
+                       reg = <0 0x340000>;
+                       read-only;
+               };
+               partition@300000 {
+                       label = "storage";
+                       reg = <0x340000 0x4be000>;
+               };
+               partition@7fe000 {
+                       label = "environment";
+                       reg = <0x7fe000 0x2000>;
+                       read-only;
+               };
+       };
+};
+
+&uart0 {
+       clock-frequency = <1200000000>;
+};

diff --git a/arch/mips/mach-octeon/Kconfig b/arch/mips/mach-octeon/Kconfig
index 3c8ca8dd3675fd4b0300d5d8e6ac3717de0d90e5..e8596ed99aa91ec2e7aca6ef52a9b74bd0902311 100644 (file)
--- a/arch/mips/mach-octeon/Kconfig
+++ b/arch/mips/mach-octeon/Kconfig
@@ -31,6 +31,18 @@ config SOC_OCTEON3
 
 endchoice
 
+choice
+       prompt "Octeon 3 board select"
+       default TARGET_OCTEON_EBB7304
+
+config TARGET_OCTEON_EBB7304
+       bool "Marvell Octeon EBB7304"
+       select OCTEON_CN73XX
+       help
+        Choose this for the Octeon EBB7304 board
+
+endchoice
+
 config SYS_DCACHE_SIZE
        default 32768
 
@@ -43,4 +55,6 @@ config SYS_ICACHE_SIZE
 config SYS_ICACHE_LINE_SIZE
        default 128
 
+source "board/Marvell/octeon_ebb7304/Kconfig"
+
 endmenu

diff --git a/board/Marvell/octeon_ebb7304/Kconfig b/board/Marvell/octeon_ebb7304/Kconfig
new file mode 100644 (file)
index 0000000..ab54e6d
--- /dev/null
+++ b/board/Marvell/octeon_ebb7304/Kconfig
@@ -0,0 +1,19 @@
+if TARGET_OCTEON_EBB7304
+
+config SYS_BOARD
+       string
+       default "octeon_ebb7304"
+
+config SYS_VENDOR
+       string
+       default "Marvell"
+
+config SYS_CONFIG_NAME
+       string
+       default "octeon_ebb7304"
+
+config DEFAULT_DEVICE_TREE
+       string
+       default "mrvl,octeon-ebb7304"
+
+endif

diff --git a/board/Marvell/octeon_ebb7304/MAINTAINERS b/board/Marvell/octeon_ebb7304/MAINTAINERS
new file mode 100644 (file)
index 0000000..7256f83
--- /dev/null
+++ b/board/Marvell/octeon_ebb7304/MAINTAINERS
@@ -0,0 +1,7 @@
+OCTEON_EBB7304 BOARD
+M:     Aaron Williams <awilliams@marvell.com>
+S:     Maintained
+F:     board/Marvell/octeon_ebb7304/*
+F:     configs/octeon_ebb7304_defconfig
+F:     include/configs/octeon_ebb7304.h
+F:     arch/mips/dts/mrvl,octeon-ebb7304.dts

diff --git a/board/Marvell/octeon_ebb7304/Makefile b/board/Marvell/octeon_ebb7304/Makefile
new file mode 100644 (file)
index 0000000..a3ed0c8
--- /dev/null
+++ b/board/Marvell/octeon_ebb7304/Makefile
@@ -0,0 +1,8 @@
+#
+# Copyright (C) 2020 Stefan Roese <sr@denx.de>
+# Copyright (C) 2019-2020 Marvell International Ltd.
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y  := board.o

diff --git a/board/Marvell/octeon_ebb7304/board.c b/board/Marvell/octeon_ebb7304/board.c
new file mode 100644 (file)
index 0000000..56e50a9
--- /dev/null
+++ b/board/Marvell/octeon_ebb7304/board.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Stefan Roese <sr@denx.de>
+ */
+
+/*
+ * Nothing included right now. Code will be added in follow-up
+ * patches.
+ */

diff --git a/configs/octeon_ebb7304_defconfig b/configs/octeon_ebb7304_defconfig
new file mode 100644 (file)
index 0000000..d810b1e
--- /dev/null
+++ b/configs/octeon_ebb7304_defconfig
@@ -0,0 +1,38 @@
+CONFIG_MIPS=y
+CONFIG_SYS_TEXT_BASE=0xffffffff80000000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_ENV_SIZE=0x2000
+CONFIG_ENV_SECT_SIZE=0x10000
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_DEBUG_UART_BASE=0x8001180000000800
+CONFIG_DEBUG_UART_CLOCK=1200000000
+CONFIG_ARCH_OCTEON=y
+# CONFIG_MIPS_CACHE_SETUP is not set
+# CONFIG_MIPS_CACHE_DISABLE is not set
+CONFIG_DEBUG_UART=y
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_TIME=y
+CONFIG_ENV_IS_IN_FLASH=y
+CONFIG_ENV_ADDR=0x1FBFE000
+CONFIG_CLK=y
+# CONFIG_INPUT is not set
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_NOR_FLASH=y
+CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_CFI_FLASH=y
+CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_FLASH_CFI_MTD=y
+CONFIG_SYS_FLASH_CFI=y
+# CONFIG_NETDEVICES is not set
+CONFIG_DEBUG_UART_SHIFT=3
+CONFIG_DEBUG_UART_ANNOUNCE=y
+CONFIG_SYS_NS16550=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_OCTEON=y
+CONFIG_HEXDUMP=y

diff --git a/include/configs/octeon_common.h b/include/configs/octeon_common.h
new file mode 100644 (file)
index 0000000..530f02a
--- /dev/null
+++ b/include/configs/octeon_common.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019-2020
+ * Marvell <www.marvell.com>
+ */
+
+#ifndef __OCTEON_COMMON_H__
+#define __OCTEON_COMMON_H__
+
+/* No DDR init yet -> run in L2 cache with limited resources */
+#define CONFIG_SYS_MALLOC_LEN          (256 << 10)
+#define CONFIG_SYS_SDRAM_BASE          0xffffffff80000000
+#define CONFIG_SYS_MONITOR_BASE                CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SYS_LOAD_ADDR           (CONFIG_SYS_SDRAM_BASE + (1 << 20))
+
+#define CONFIG_SYS_INIT_SP_OFFSET      0x180000
+
+#endif /* __OCTEON_COMMON_H__ */

diff --git a/include/configs/octeon_ebb7304.h b/include/configs/octeon_ebb7304.h
new file mode 100644 (file)
index 0000000..04fe4df
--- /dev/null
+++ b/include/configs/octeon_ebb7304.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019-2020
+ * Marvell <www.marvell.com>
+ */
+
+#ifndef __CONFIG_H__
+#define __CONFIG_H__
+
+#include "octeon_common.h"
+
+/*
+ * CFI flash
+ */
+#define CONFIG_SYS_MAX_FLASH_BANKS     1
+#define CONFIG_SYS_MAX_FLASH_SECT      256
+#define CONFIG_SYS_FLASH_CFI_WIDTH     FLASH_CFI_8BIT
+#define CONFIG_SYS_FLASH_EMPTY_INFO    /* flinfo indicates empty blocks */
+
+#endif /* __CONFIG_H__ */