This adds ethernet, TFTP support for PIC32MZ[DA] Starter Kit. Also custom environment variables/scripts are added to help boot from network.
Signed-off-by: Purna Chandra Mandal purna.mandal@microchip.com
---
Changes in v4: None Changes in v3: None Changes in v2: - replace unbounded loop with wait_for_bit() - replace register access as readl/writel(base + offset) - translate (dts provided) physical address to MIPS kseg1 address before use
arch/mips/dts/pic32mzda.dtsi | 10 ++++++++++ arch/mips/dts/pic32mzda_sk.dts | 10 ++++++++++ configs/pic32mzdask_defconfig | 9 ++++++--- include/configs/pic32mzdask.h | 22 +++++++++++++++++++++- 4 files changed, 47 insertions(+), 4 deletions(-)
diff --git a/arch/mips/dts/pic32mzda.dtsi b/arch/mips/dts/pic32mzda.dtsi index f1894ec..7d180d9 100644 --- a/arch/mips/dts/pic32mzda.dtsi +++ b/arch/mips/dts/pic32mzda.dtsi @@ -161,4 +161,14 @@ bus-width = <4>; status = "disabled"; }; + + ethernet: ethernet@1f882000 { + compatible = "microchip,pic32mzda-eth"; + reg = <0x1f882000 0x1000>; + interrupts = <153 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clock PB5CLK>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; + }; }; diff --git a/arch/mips/dts/pic32mzda_sk.dts b/arch/mips/dts/pic32mzda_sk.dts index f886a0f..e5ce0bd 100644 --- a/arch/mips/dts/pic32mzda_sk.dts +++ b/arch/mips/dts/pic32mzda_sk.dts @@ -42,4 +42,14 @@
&sdhci { status = "okay"; +}; + +ðernet { + reset-gpios = <&gpioJ 15 0>; + status = "okay"; + phy-mode = "rmii"; + phy-handle = <ðernet_phy>; + ethernet_phy: lan8740_phy@0 { + reg = <0>; + }; }; \ No newline at end of file diff --git a/configs/pic32mzdask_defconfig b/configs/pic32mzdask_defconfig index 55ba3f8..169a2ac 100644 --- a/configs/pic32mzdask_defconfig +++ b/configs/pic32mzdask_defconfig @@ -16,16 +16,19 @@ CONFIG_CMD_MEMINFO=y # CONFIG_CMD_FLASH is not set # CONFIG_CMD_FPGA is not set CONFIG_CMD_GPIO=y -# CONFIG_CMD_NET is not set -# CONFIG_CMD_NFS is not set +CONFIG_CMD_RARP=y +CONFIG_CMD_DHCP=y +CONFIG_CMD_PING=y CONFIG_CMD_TIME=y CONFIG_OF_EMBED=y +CONFIG_NET_RANDOM_ETHADDR=y CONFIG_CLK=y CONFIG_DM_MMC=y CONFIG_PIC32_SDHCI=y +CONFIG_DM_ETH=y +CONFIG_PIC32_ETH=y CONFIG_PINCTRL=y # CONFIG_PINCTRL_FULL is not set CONFIG_SYS_VSNPRINTF=y CONFIG_USE_TINY_PRINTF=y -CONFIG_REGEX=y CONFIG_CMD_DHRYSTONE=y diff --git a/include/configs/pic32mzdask.h b/include/configs/pic32mzdask.h index b258038..3ea1194 100644 --- a/include/configs/pic32mzdask.h +++ b/include/configs/pic32mzdask.h @@ -73,6 +73,25 @@ (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16) #define CONFIG_CMDLINE_EDITING 1
+/*----------------------------------------------------------------------- + * Networking Configuration + */ +#define CONFIG_MII +#define CONFIG_PHY_SMSC +#define CONFIG_SYS_RX_ETH_BUFFER 8 +#define CONFIG_NET_RETRY_COUNT 20 +#define CONFIG_ARP_TIMEOUT 500 /* millisec */ + +#define CONFIG_CMD_MII + +/* + * BOOTP options + */ +#define CONFIG_BOOTP_BOOTFILESIZE +#define CONFIG_BOOTP_BOOTPATH +#define CONFIG_BOOTP_GATEWAY +#define CONFIG_BOOTP_HOSTNAME + /* * Handover flattened device tree (dtb file) to Linux kernel */ @@ -133,7 +152,8 @@ "fi; \0"
#define BOOT_TARGET_DEVICES(func) \ - func(MMC, mmc, 0) + func(MMC, mmc, 0) \ + func(DHCP, dhcp, na)
#include <config_distro_bootcmd.h>