This patch series adds support for Microchip PIC32MZ[DA] MIPS microcontroller platform. All drivers required to boot from MMC uSD card and network are included in it; clock, pinctrl, gpio, DDR2, serial, SDHCI, ethernet. This series been tested on PIC32MZ[DA] Starter Kit.
This series is generated on u-boot/master branch. A tree with these changes is available at [1].
[1] https://github.com/purna-mandal/u-boot/tree/pic32-upstream-v4 [0] https://github.com/purna-mandal/u-boot/tree/pic32-upstream-v3
Changes in v4: - update kconfig dependency and default selection - drop ioremap failure check - gpio: return -EPERM if the pin is found in analog mode - gpio: drop desc->offset setting in _gpio_xlate() - serial: update comment for _pending_input(). - serial: rename UART_RX_OERR to UART_RX_OVER. - serial: DEBUG_UART_PIC32 now depends on PIC32_SERIAL - serial: extract clock-id from device-tree - drop forcing DM_SERIAL, PIC32_SERIAL, PIC32_PINCTRL in mach-pic32/Kconfig - drop extra includes - rename clock compatible to "pic32mzda-clk" from "pic32mzda_clk". - fix typo 'clock-cells' to '#clock-cells' - create defconfig by 'make savedefconfig' - drop explicit SYS_BAUDRATE_TABLE in favor of default one - add CD errata under SDHCI_QUIRK_NO_CD - eth: drop _dcache_flush/invalidate() helpers for flush/invalidate_dcache_range().
Changes in v3: - drop empty choice in mach-pic32/Kconfig - add pic32_get_syscfg_base() - rename clk-pic32.c to clk_pic32.c - update clock binding documentation - replace pic32_ioremap() with ioremap() - separate MPLL initialization constants - read register base from device-tree - add/update comments to explain how pinctrl'r works. - replace pic32_ioremap() with ioremap(). - add check on dev_get_addr() - remove ofdata_to_platdata, and replace platdata with priv - remove special handling of '\r' as being handled by serial-uclass - remove loop to wait for space in tx buffer before pumping char - annotating fixed table with const - fix camel-case in ddr2 timing parameters - fix cmd index parameter of host_load_cmd(). - fix compilation warning - drop forcing CONFIG_MIPS_BOOT_* selection in mach-pic32/Kconfig - indent assembly instructions in delay slot - made GPIO-nodes child of pinctrl-node in devicetree - replace pic32_ioremap() with ioremap() - drop SKIP_LOWLEVEL_INIT, GBL_DATA_OFFSET from config header - move CMD_MEMTEST, CMD_MEMINFO to defconfig - increase SYS_MALLOC_F_LEN to 0x600 - use auto-generated defconfig - no hand edit - remove ofdata_to_platdata, and replace platdata with priv - replace pic32_ioremap() with ioremap() - use distro boot commands from config_distro_bootcmd.h - separate old booting logic as legacy_bootcmd - merge wrappers with eth operation callbacks - read phy address from device-tree - rename functions (e.g. _eth_xyz() with pic32_eth_xyz())
Changes in v2: - move PIC32 specific headers to arch/mips/mach-pic32/include/mach/ - define register-base as physical address - drop CONFIG_PIC32_SUPPORTS_FDT_BOOT - add mpll get clock rate - add pinconf routine for configuring pin property - fix missing/corrupted chars during baud rate change - remove loop until any char is avaialbale in getc() - move ddr2 initialization from board/microchip/ to drivers/ddr/microchip - drop board_early_init_f - use macro LEAF(), END() for lowlevel_init - move initialization of board_init_f() argument to common start.S - move initdram() from board/microchip/ to mach-pic32/cpu.c - remove MIPS virtual address in favor physical one in dts file - move CONFIG_SYS_TEXT_BASE (from board/*/config.mk) to include/configs/<board>.h - drop sdhci shared bus configuration (for shared interrupt, clock pins) - drop shared bus (shared pin selection) configuration. - 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
Andrei Pistirica (1): drivers: mmc: add driver for Microchip PIC32 SDHCI controller.
Paul Thacker (1): drivers: serial: add driver for Microchip PIC32 UART controller.
Purna Chandra Mandal (11): MIPS: initial infrastructure for Microchip PIC32 architecture drivers: clk: Add clock driver for Microchip PIC32 Microcontroller. drivers: pinctrl: Add pinctrl driver for Microchip PIC32. drivers: gpio: add driver for Microchip PIC32 GPIO controller. drivers: ddr: Add DDR2 SDRAM controller driver for Microchip PIC32. MIPS: Add support for Microchip PIC32MZ[DA] SoC family. board: Add Microchip PIC32MZ[DA]-Starter-Kit board. board: add SDHCI support for PIC32MZDASK board. drivers: net: phy: add SMSC LAN8740 Phy support. drivers: net: Add ethernet driver for Microchip PIC32. board: Enable ethernet, tftpboot support to pic32mzdask board.
arch/mips/Kconfig | 6 + arch/mips/Makefile | 1 + arch/mips/dts/Makefile | 2 +- arch/mips/dts/pic32mzda.dtsi | 174 ++++++ arch/mips/dts/pic32mzda_sk.dts | 55 ++ arch/mips/mach-pic32/Kconfig | 35 ++ arch/mips/mach-pic32/Makefile | 7 + arch/mips/mach-pic32/cpu.c | 156 ++++++ arch/mips/mach-pic32/include/mach/ddr.h | 32 ++ arch/mips/mach-pic32/include/mach/pic32.h | 79 +++ arch/mips/mach-pic32/lowlevel_init.S | 27 + arch/mips/mach-pic32/reset.c | 36 ++ board/microchip/pic32mzda/Kconfig | 13 + board/microchip/pic32mzda/MAINTAINERS | 6 + board/microchip/pic32mzda/Makefile | 7 + board/microchip/pic32mzda/README | 22 + board/microchip/pic32mzda/pic32mzda.c | 31 ++ configs/pic32mzdask_defconfig | 34 ++ .../clock/microchip,pic32-clock.txt | 33 ++ .../serial/microchip,pic32-uart.txt | 5 + drivers/Makefile | 1 + drivers/clk/Makefile | 1 + drivers/clk/clk_pic32.c | 433 +++++++++++++++ drivers/ddr/microchip/Makefile | 6 + drivers/ddr/microchip/ddr2.c | 278 ++++++++++ drivers/ddr/microchip/ddr2_regs.h | 148 +++++ drivers/ddr/microchip/ddr2_timing.h | 65 +++ drivers/gpio/Kconfig | 7 + drivers/gpio/Makefile | 2 +- drivers/gpio/pic32_gpio.c | 174 ++++++ drivers/mmc/Kconfig | 6 + drivers/mmc/Makefile | 2 +- drivers/mmc/pic32_sdhci.c | 58 ++ drivers/mmc/sdhci.c | 7 + drivers/net/Kconfig | 8 + drivers/net/Makefile | 1 + drivers/net/phy/smsc.c | 10 + drivers/net/pic32_eth.c | 605 +++++++++++++++++++++ drivers/net/pic32_eth.h | 164 ++++++ drivers/net/pic32_mdio.c | 121 +++++ drivers/pinctrl/Kconfig | 10 + drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinctrl_pic32.c | 363 +++++++++++++ drivers/serial/Kconfig | 15 + drivers/serial/Makefile | 1 + drivers/serial/serial_pic32.c | 198 +++++++ include/configs/pic32mzdask.h | 168 ++++++ include/dt-bindings/clock/microchip,clock.h | 29 + 48 files changed, 3640 insertions(+), 3 deletions(-) create mode 100644 arch/mips/dts/pic32mzda.dtsi create mode 100644 arch/mips/dts/pic32mzda_sk.dts create mode 100644 arch/mips/mach-pic32/Kconfig create mode 100644 arch/mips/mach-pic32/Makefile create mode 100644 arch/mips/mach-pic32/cpu.c create mode 100644 arch/mips/mach-pic32/include/mach/ddr.h create mode 100644 arch/mips/mach-pic32/include/mach/pic32.h create mode 100644 arch/mips/mach-pic32/lowlevel_init.S create mode 100644 arch/mips/mach-pic32/reset.c create mode 100644 board/microchip/pic32mzda/Kconfig create mode 100644 board/microchip/pic32mzda/MAINTAINERS create mode 100644 board/microchip/pic32mzda/Makefile create mode 100644 board/microchip/pic32mzda/README create mode 100644 board/microchip/pic32mzda/pic32mzda.c create mode 100644 configs/pic32mzdask_defconfig create mode 100644 doc/device-tree-bindings/clock/microchip,pic32-clock.txt create mode 100644 doc/device-tree-bindings/serial/microchip,pic32-uart.txt create mode 100644 drivers/clk/clk_pic32.c create mode 100644 drivers/ddr/microchip/Makefile create mode 100644 drivers/ddr/microchip/ddr2.c create mode 100644 drivers/ddr/microchip/ddr2_regs.h create mode 100644 drivers/ddr/microchip/ddr2_timing.h create mode 100644 drivers/gpio/pic32_gpio.c create mode 100644 drivers/mmc/pic32_sdhci.c create mode 100644 drivers/net/pic32_eth.c create mode 100644 drivers/net/pic32_eth.h create mode 100644 drivers/net/pic32_mdio.c create mode 100644 drivers/pinctrl/pinctrl_pic32.c create mode 100644 drivers/serial/serial_pic32.c create mode 100644 include/configs/pic32mzdask.h create mode 100644 include/dt-bindings/clock/microchip,clock.h