From: Nathan Barrett-Morrison nathan.morrison@timesys.com

Add support for the SC5xx machine type from Analog Devices. This includes support for the SC57x, SC58x, SC59x, and SC59x-64 SoCs, which have many common features such as common ADI IP blocks, and SHARC DSP cores. This commit introduces core functionality required for all boards using an SC5xx SoC, such as:

- SPL configuration - Required CPU hooks such as reset - Boot ROM interaction to load the stage 2 bootloader in the reference configuration. Other options are possible but not officially supported at this time - SoC-common configuration expected to be reused by all boards - Early initialization for system clocks and DDR controller

Co-developed-by: Greg Malysa greg.malysa@timesys.com Signed-off-by: Greg Malysa greg.malysa@timesys.com Co-developed-by: Ian Roberts ian.roberts@timesys.com Signed-off-by: Ian Roberts ian.roberts@timesys.com Signed-off-by: Vasileios Bimpikas vasileios.bimpikas@analog.com Signed-off-by: Utsav Agarwal utsav.agarwal@analog.com Signed-off-by: Arturs Artamonovs arturs.artamonovs@analog.com Signed-off-by: Nathan Barrett-Morrison nathan.morrison@timesys.com

---

Changes in v2: - Removed MACH_TYPE constants and any references to setting the MACH_TYPE as it is not used by this platform - Removed additional compiler flags from config.mk - Converted to text env. Each board is expected to provide a text env and #include env/adi/adi_boot.env if it wants to use the reference ADI boot flow - Some further cleanup on use of Kconfigs--some per board settings affecting dmcinit and clkinit have been converted to Kconfigs instead of config header constants - Reviewed #include usage and pruned unnecessary files - Passes gitlab CI run locally

--- MAINTAINERS | 13 + arch/arm/Kconfig | 5 + arch/arm/Makefile | 1 + arch/arm/include/asm/arch-adi/sc5xx/sc5xx.h | 39 + arch/arm/include/asm/arch-adi/sc5xx/soc.h | 18 + arch/arm/include/asm/arch-adi/sc5xx/spl.h | 43 + arch/arm/mach-sc5xx/Kconfig | 475 +++++++++ arch/arm/mach-sc5xx/Makefile | 19 + arch/arm/mach-sc5xx/config.mk | 16 + arch/arm/mach-sc5xx/init/Makefile | 11 + arch/arm/mach-sc5xx/init/clkinit.c | 558 +++++++++++ arch/arm/mach-sc5xx/init/clkinit.h | 18 + arch/arm/mach-sc5xx/init/dmcinit.c | 954 +++++++++++++++++++ arch/arm/mach-sc5xx/init/dmcinit.h | 31 + arch/arm/mach-sc5xx/init/mem/is43tr16512bl.h | 62 ++ arch/arm/mach-sc5xx/init/mem/mt41k128m16jt.h | 50 + arch/arm/mach-sc5xx/init/mem/mt41k512m16ha.h | 50 + arch/arm/mach-sc5xx/init/mem/mt47h128m16rt.h | 49 + arch/arm/mach-sc5xx/rcu.c | 22 + arch/arm/mach-sc5xx/sc57x.c | 32 + arch/arm/mach-sc5xx/sc58x.c | 32 + arch/arm/mach-sc5xx/sc59x.c | 43 + arch/arm/mach-sc5xx/sc59x_64.c | 97 ++ arch/arm/mach-sc5xx/soc.c | 179 ++++ arch/arm/mach-sc5xx/spl.c | 102 ++ include/env/adi/adi_boot.env | 122 +++ 26 files changed, 3041 insertions(+) create mode 100644 arch/arm/include/asm/arch-adi/sc5xx/sc5xx.h create mode 100644 arch/arm/include/asm/arch-adi/sc5xx/soc.h create mode 100644 arch/arm/include/asm/arch-adi/sc5xx/spl.h create mode 100644 arch/arm/mach-sc5xx/Kconfig create mode 100644 arch/arm/mach-sc5xx/Makefile create mode 100644 arch/arm/mach-sc5xx/config.mk create mode 100644 arch/arm/mach-sc5xx/init/Makefile create mode 100644 arch/arm/mach-sc5xx/init/clkinit.c create mode 100644 arch/arm/mach-sc5xx/init/clkinit.h create mode 100644 arch/arm/mach-sc5xx/init/dmcinit.c create mode 100644 arch/arm/mach-sc5xx/init/dmcinit.h create mode 100644 arch/arm/mach-sc5xx/init/mem/is43tr16512bl.h create mode 100644 arch/arm/mach-sc5xx/init/mem/mt41k128m16jt.h create mode 100644 arch/arm/mach-sc5xx/init/mem/mt41k512m16ha.h create mode 100644 arch/arm/mach-sc5xx/init/mem/mt47h128m16rt.h create mode 100644 arch/arm/mach-sc5xx/rcu.c create mode 100644 arch/arm/mach-sc5xx/sc57x.c create mode 100644 arch/arm/mach-sc5xx/sc58x.c create mode 100644 arch/arm/mach-sc5xx/sc59x.c create mode 100644 arch/arm/mach-sc5xx/sc59x_64.c create mode 100644 arch/arm/mach-sc5xx/soc.c create mode 100644 arch/arm/mach-sc5xx/spl.c create mode 100644 include/env/adi/adi_boot.env

diff --git a/MAINTAINERS b/MAINTAINERS index 83fd68e3f3..f743ce9f9d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -598,6 +598,19 @@ R: Marc Murphy marc.murphy@sancloud.com S: Supported F: arch/arm/dts/am335x-sancloud*

+ARM SC5XX +M: Nathan Barrett-Morrison nathan.morrison@timesys.com +M: Greg Malysa greg.malysa@timesys.com +M: Ian Roberts ian.roberts@timesys.com +M: Vasileios Bimpikas vasileios.bimpikas@analog.com +M: Utsav Agarwal utsav.agarwal@analog.com +M: Arturs Artamonovs arturs.artamonovs@analog.com +S: Supported +T: git https://github.com/analogdevicesinc/lnxdsp-u-boot +F: arch/arm/include/asm/arch-adi/ +F: arch/arm/mach-sc5xx/ +F: include/env/adi/ + ARM SNAPDRAGON M: Caleb Connolly caleb.connolly@linaro.org M: Neil Armstrong neil.armstrong@linaro.org diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a0842e1933..ded35cb65c 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1843,6 +1843,9 @@ config TARGET_LS1046AFRWY development platform that supports the QorIQ LS1046A Layerscape Architecture processor.

+config ARCH_SC5XX + bool "Analog Devices SC5XX-processor family" + config TARGET_SL28 bool "Support sl28" select ARCH_LS1028A @@ -2276,6 +2279,8 @@ source "arch/arm/mach-rockchip/Kconfig"

source "arch/arm/mach-s5pc1xx/Kconfig"

+source "arch/arm/mach-sc5xx/Kconfig" + source "arch/arm/mach-snapdragon/Kconfig"

source "arch/arm/mach-socfpga/Kconfig" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index a4266a3e36..734c6d6992 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -78,6 +78,7 @@ machine-$(CONFIG_ARCH_OWL) += owl machine-$(CONFIG_ARCH_RENESAS) += renesas machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip machine-$(CONFIG_ARCH_S5PC1XX) += s5pc1xx +machine-$(CONFIG_ARCH_SC5XX) += sc5xx machine-$(CONFIG_ARCH_SNAPDRAGON) += snapdragon machine-$(CONFIG_ARCH_SOCFPGA) += socfpga machine-$(CONFIG_ARCH_STM32) += stm32 diff --git a/arch/arm/include/asm/arch-adi/sc5xx/sc5xx.h b/arch/arm/include/asm/arch-adi/sc5xx/sc5xx.h new file mode 100644 index 0000000000..683e3d412c --- /dev/null +++ b/arch/arm/include/asm/arch-adi/sc5xx/sc5xx.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ +#ifndef ARCH_ADI_SC5XX_SC5XX_H +#define ARCH_ADI_SC5XX_SC5XX_H + +#include <linux/types.h> + +#define TWI0_CLKDIV 0x31001400 // TWI0 SCL Clock Divider Register +#define TWI1_CLKDIV 0x31001500 // TWI1 SCL Clock Divider Register +#define TWI2_CLKDIV 0x31001600 // TWI2 SCL Clock Divider Register + +const char *sc5xx_get_boot_mode(u32 *bmode); +void sc5xx_enable_rgmii(void); + +void sc5xx_enable_ns_sharc_access(uintptr_t securec0_base); +void sc5xx_disable_spu0(uintptr_t spu0_start, uintptr_t spu0_end); +void sc5xx_enable_pmu(void); + +/** + * Per-SoC init function to be used to initialize hw-specific things. Examples: + * enable PMU on armv7, enable coresight timer on armv8, etc. + */ +void sc5xx_soc_init(void); + +/* + * Reconfigure SPI memory map region for OSPI use. The adi-spi3 driver + * does not use the memory map, while the OSPI driver requires it. Only + * available on sc59x and sc59x-64 + */ +void sc59x_remap_ospi(void); + +#endif diff --git a/arch/arm/include/asm/arch-adi/sc5xx/soc.h b/arch/arm/include/asm/arch-adi/sc5xx/soc.h new file mode 100644 index 0000000000..430dbe2dae --- /dev/null +++ b/arch/arm/include/asm/arch-adi/sc5xx/soc.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#ifndef BOARD_ADI_COMMON_SOC_H +#define BOARD_ADI_COMMON_SOC_H + +#include <phy.h> + +void fixup_dp83867_phy(struct phy_device *phydev); + +#endif diff --git a/arch/arm/include/asm/arch-adi/sc5xx/spl.h b/arch/arm/include/asm/arch-adi/sc5xx/spl.h new file mode 100644 index 0000000000..c215e6b892 --- /dev/null +++ b/arch/arm/include/asm/arch-adi/sc5xx/spl.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ +#ifndef ARCH_ADI_SC5XX_SPL_H +#define ARCH_ADI_SC5XX_SPL_H + +#include <linux/types.h> + +struct adi_boot_args { + phys_addr_t addr; + u32 flags; + u32 cmd; +}; + +extern u32 bmode; + +/** + * This table stores the arguments to the rom boot function per bootmode, + * and it is populated per SoC in the corresponding SoC support file (sc7x, sc58x, + * and so on). + */ +extern const struct adi_boot_args adi_rom_boot_args[8]; + +/** + * Struct layout for the boot config is also specific to an SoC, so you should + * only access it inside an SoC-specific boot hook function, which will be called + * from the boot rom while going from SPL to proper u-boot + */ +struct ADI_ROM_BOOT_CONFIG; +int32_t adi_rom_boot_hook(struct ADI_ROM_BOOT_CONFIG *cfg, int32_t cause); + +typedef void (*adi_rom_boot_fn)(void *address, uint32_t flags, int32_t count, + void *hook, uint32_t command); + +extern adi_rom_boot_fn adi_rom_boot; + +#endif diff --git a/arch/arm/mach-sc5xx/Kconfig b/arch/arm/mach-sc5xx/Kconfig new file mode 100644 index 0000000000..3846b4fd5b --- /dev/null +++ b/arch/arm/mach-sc5xx/Kconfig @@ -0,0 +1,475 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# (C) Copyright 2022 - Analog Devices, Inc. +# +# Written and/or maintained by Timesys Corporation +# +# Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com +# Contact: Greg Malysa greg.malysa@timesys.com +# + +# All 32-bit platforms require SYS_ARM_CACHE_WRITETHROUGH +# But it is ignored if selected here, so it must be in the defconfig + +if ARCH_SC5XX + +config SC57X + bool + select SUPPORT_SPL + select CPU_V7A + select PANIC_HANG + select COMMON_CLK_ADI_SC57X + select TIMER + select ADI_SC5XX_TIMER + +config SC58X + bool + select SUPPORT_SPL + select CPU_V7A + select PANIC_HANG + select COMMON_CLK_ADI_SC58X + select TIMER + select ADI_SC5XX_TIMER + +config SC59X + bool + select SUPPORT_SPL + select CPU_V7A + select PANIC_HANG + select COMMON_CLK_ADI_SC594 + select TIMER + select ADI_SC5XX_TIMER + select NOP_PHY + +config SC59X_64 + bool + select SUPPORT_SPL + select PANIC_HANG + select MMC_SDHCI_ADMA_FORCE_32BIT + select ARM64 + select DM + select DM_SERIAL + select COMMON_CLK_ADI_SC598 + select GICV3 + select GIC_600_CLEAR_RDPD + select NOP_PHY + +config SC_BOOT_MODE + int "SC5XX boot mode select" + default 1 + range 0 7 + help + Mode 0: do nothing, just idle + Mode 1: boot ldr out of serial flash + Mode 7: boot ldr over uart + +config SC_BOOT_SPI_BUS + int "sc5xx spi boot bus" + default 2 + range 0 4 + help + This is the SPI peripheral number to use for booting, X in the + expression `sf probe X:Y` + +config SC_BOOT_SPI_SSEL + int "sc5xx spi boot chipselect" + default 1 + range 0 6 + help + This is the SPI chip select number to use for booting, Y in the + expression `sf probe X:Y` + +config SC_BOOT_OSPI_BUS + int "sc5xx ospi boot bus" + default 0 + help + This is the OSPI peripheral number to use for booting, X in the + expression `sf probe X:Y` + +config SC_BOOT_OSPI_SSEL + int "sc5xx ospi boot chipselect" + default 0 + help + This is the OSPI chip select number to use for booting, Y in the + expression `sf probe X:Y` + +config SYS_FLASH_BASE + hex + default 0x60000000 + +config UART_CONSOLE + int + default 0 + +config UART4_SERIAL + bool + depends on DM_SERIAL + default y + +config WDT_ADI + bool + default y + +config WATCHDOG_TIMEOUT_MSECS + int + default 30000 + +config DW_PORTS + int + default 1 + +config ADI_BUG_EZKHW21 + bool "SC584 EZKIT phy bug workaround" + depends on SC58X + help + This workaround affects the SC584 EZKIT and addresses bug EZKHW21. + It disables gigabit ethernet mode and limits the board to 100 Mbps + +config ADI_CARRIER_SOMCRR_EZKIT + bool "Support the EV-SOMCRR-EZKIT" + depends on (SC59X || SC59X_64) + help + Say y to include support for the EV-SOMCRR-EZKIT carrier board, + which is compatible with the SC594 and SC598 SOMs. The EZKIT is + mutually incompatible with the EZLITE. + +config ADI_CARRIER_SOMCRR_EZLITE + bool "Support the EV-SOMCRR-EZLITE" + depends on (SC59X || SC59X_64) + help + Say y to include support for the EV-SOMCRR-EZLITE carrier board, + which is compatible with the SC594 and SC598 SOMs. The EZLITE is + mutually incompatible with the EZKIT. + +config ADI_SPL_FORCE_BMODE + int "Force the SPL to use this BMODE device during next boot stage" + default 0 + range 0 9 + depends on SPL + help + Force the SPL to use this BMODE device during next boot stage. + For example, if booting via QSPI, we can force the second stage + Of the boot process to use other peripherals via: + 1 = QSPI -> QSPI + 5 = QSPI -> OSPI + 6 = QSPI -> eMMC + +config ADI_USE_DMC0 + bool "Configure DMC0" + default y + help + During hardware initialization, channel 0 of the DMC will be + initialized. Select this if you have DMC0 connected to external + DDR memory. This is expected to be true for every board using + an SC5xx SoC. + +config ADI_USE_DMC1 + bool "Configure DMC1" + help + During hardware initialization, channel 1 of the DMC will be + initialized. Not all processors have a DMC1. Select this if your + SoC has DMC1 and you have it connected to external DDR memory. + +config ADI_USE_DDR2 + bool "Configure DMC for DDR2 mode" + help + Configure the DMC in DDR2 mode. The default is DDR3 and not all + parts may actually support DDR2. Please consult the manual for + the SoC that you are using to determine if DDR2 mode is supported. + This also requires that DDR2 memory is present on the board or it + will probably cause strange failure. + +menu "Clock configuration" + +config CGU0_DF_DIV + int "CGU0_DF_DIV" + range 0 1 + help + Select 0 to pass CLKIN to PLL + Select 1 to pass CLKIN/2 to PLL + +config CGU0_VCO_MULT + int "CGU0_VCO_MULT" + range 0 127 + help + VCO_MULT controls the MSEL (multiplier) bits in PLL_CTL + A value of 0 means 128 + +config CGU0_CCLK_DIV + int "CGU0_CCLK_DIV" + range 0 31 + help + CCLK_DIV controls the core clock divider + A value of 0 means 32 + CCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / CCLK_DIV + +config CGU0_SCLK_DIV + int "CGU0_SCLK_DIV" + range 0 31 + help + SCLK_DIV controls the system clock divider + A value of 0 means 32 + SCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / SYSCLK_DIV + +config CGU0_SCLK0_DIV + int "CGU0_SCLK0_DIV" + range 0 7 + help + A value of 0 means 8 + SCLK0 = SCLK / SCLK0_DIV + +config CGU0_SCLK1_DIV + int "CGU0_SCLK1_DIV" + depends on (SC57X || SC58X) + range 0 7 + help + A value of 0 means 8 + SCLK1 = SCLK / SCLK1_DIV + +config CGU0_DCLK_DIV + int "CGU0_DCLK_DIV" + range 0 31 + help + DCLK_DIV controls the DDR clock divider + A value of 0 means 32 + DCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / DCLK_DIV + +config CGU0_OCLK_DIV + int "CGU0_OCLK_DIV" + range 0 127 + help + OCLK_DIV controls the output clock divider + A value of 0 means 128 + OCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / OCLK_DIV + +config CGU0_DIV_S1SELEX + int "CGU0_DIV_S1SELEX" + depends on !SC57X && !SC58X + range 0 255 + help + CGU0 SCLK1 Extended divisor register. + A value of 0 means 256. + SCLK1 = ((CLKIN / (1 + DF)) * VCO_MULT) / DIV_S1SELEX + +config CGU0_CLKOUTSEL + int "CGU0_CLKOUTSEL" + default 0 + range 0 31 + help + Select signal driven through CLKOUT pin multiplexer. + This value varies on each SOC. Refer to + CGU_CLKOUTSEL.CLKOUTSEL in the Hardware Reference Manual + for values applicable to each SOC. + Commonly, values 0 and 1 select CLKIN0 or CLKIN1 respectively. + +config CGU1_PLL3_DDRCLK + bool "DDRCLK From 3rd PLL" + depends on SC59X_64 + help + 3rd PLL output is connected to DMC block when set. + When cleared, DDR clock is CLKO3 output of CDU. + +config CGU1_PLL3_VCO_MSEL + int "CGU0_PLL3_VCO_MSEL" + depends on CGU1_PLL3_DDRCLK + range 1 128 + help + PLL multiplier value for the 3rd PLL. + DCLK = (CLKIN * PLL3_VCO_MSEL) / PLL3_DCLK_DIV + +config CGU1_PLL3_DCLK_DIV + int "CGU0_PLL3_DCLK_DIV" + depends on CGU1_PLL3_DDRCLK + range 1 32 + help + PLL divider value for the 3rd PLL. + DCLK = (CLKIN * PLL3_VCO_MSEL) / PLL3_DCLK_DIV + +config CGU1_DF_DIV + int "CGU1_DF_DIV" + range 0 1 + help + Select 0 to pass CLKIN to PLL + Select 1 to pass CLKIN/2 to PLL + +config CGU1_VCO_MULT + int "CGU1_VCO_MULT" + range 0 127 + help + VCO_MULT controls the MSEL (multiplier) bits in PLL_CTL + A value of 0 means 128 + +config CGU1_CCLK_DIV + int "CGU1_CCLK_DIV" + range 0 31 + help + CCLK_DIV controls the core clock divider + A value of 0 means 32 + CCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / CCLK_DIV + +config CGU1_SCLK_DIV + int "CGU1_SCLK_DIV" + range 0 31 + help + SCLK_DIV controls the system clock divider + A value of 0 means 32 + SCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / SYSCLK_DIV + +config CGU1_SCLK0_DIV + int "CGU1_SCLK0_DIV" + depends on (SC57X || SC58X || SC59X) + range 0 7 + help + A value of 0 means 8 + SCLK0 = SCLK / SCLK0_DIV + +config CGU1_SCLK1_DIV + int "CGU1_SCLK1_DIV" + depends on (SC57X || SC58X) + range 0 7 + help + A value of 0 means 8 + SCLK1 = SCLK / SCLK1_DIV + +config CGU1_DCLK_DIV + int "CGU1_DCLK_DIV" + range 0 31 + help + DCLK_DIV controls the DDR clock divider + A value of 0 means 32 + DCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / DCLK_DIV + +config CGU1_OCLK_DIV + int "CGU1_OCLK_DIV" + range 0 127 + help + OCLK_DIV controls the output clock divider + A value of 0 means 128 + OCLK = ((CLKIN / (1 + DF)) * VCO_MULT) / OCLK_DIV + +config CGU1_DIV_S0SELEX + int "CGU1_DIV_S0SELEX" + depends on !SC57X && !SC58X && !SC59X + range 0 255 + help + CGU1 SCLK0 Extended divisor register. + A value of 0 means 256. + SCLK0 = ((CLKIN / (1 + DF)) * VCO_MULT) / DIV_S0SELEX + +config CGU1_DIV_S1SELEX + int "CGU1_DIV_S1SELEX" + depends on !SC57X && !SC58X + range 0 255 + help + CGU1 SCLK1 Extended divisor register. + A value of 0 means 256. + SCLK1 = ((CLKIN / (1 + DF)) * VCO_MULT) / DIV_S1SELEX + +config CDU0_CGU1_CLKIN + int "CDU0 CGU1 CLKINn Select" + default 0 + range 0 1 + help + Selects source clock for CGU1. + 0 for CLKIN0 + 1 for CLKIN1 + +config CDU0_CLKO0 + int "CDU0_CLKO0" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO1 + int "CDU0_CLKO1" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO2 + int "CDU0_CLKO2" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO3 + int "CDU0_CLKO3" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO4 + int "CDU0_CLKO4" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO5 + int "CDU0_CLKO5" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO6 + int "CDU0_CLKO6" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO7 + int "CDU0_CLKO7" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO8 + int "CDU0_CLKO8" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO9 + int "CDU0_CLKO9" + range 1 7 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO10 + int "CDU0_CLKO10" + range 1 7 + depends on (SC59X || SC59X_64) + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO12 + int "CDU0_CLKO12" + range 1 7 + depends on (SC59X || SC59X_64) + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO13 + int "CDU0_CLKO13" + range 1 7 + depends on SC59X_64 + help + Clock source select. Refer to SOC Hardware Reference Manual + +config CDU0_CLKO14 + int "CDU0_CLKO14" + range 1 7 + depends on SC59X_64 + help + Clock source select. Refer to SOC Hardware Reference Manual + +endmenu + +config ADI_GPIO + bool + default y + +config PINCTRL_ADI + bool + default y + +endif diff --git a/arch/arm/mach-sc5xx/Makefile b/arch/arm/mach-sc5xx/Makefile new file mode 100644 index 0000000000..eeb56c078b --- /dev/null +++ b/arch/arm/mach-sc5xx/Makefile @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# (C) Copyright 2022 - Analog Devices, Inc. +# +# Written and/or maintained by Timesys Corporation +# +# Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com +# Contact: Greg Malysa greg.malysa@timesys.com +# + +obj-y += soc.o init/ + +obj-$(CONFIG_SC57X) += sc57x.o +obj-$(CONFIG_SC58X) += sc58x.o +obj-$(CONFIG_SC59X) += sc59x.o +obj-$(CONFIG_SC59X_64) += sc59x_64.o + +obj-$(CONFIG_SPL_BUILD) += spl.o +obj-$(CONFIG_SYSCON) += rcu.o diff --git a/arch/arm/mach-sc5xx/config.mk b/arch/arm/mach-sc5xx/config.mk new file mode 100644 index 0000000000..580964e559 --- /dev/null +++ b/arch/arm/mach-sc5xx/config.mk @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# (C) Copyright 2022 - Analog Devices, Inc. +# +# Written and/or maintained by Timesys Corporation +# +# Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com +# Contact: Greg Malysa greg.malysa@timesys.com +# + +ifdef CONFIG_SPL_BUILD +INPUTS-y += $(obj)/u-boot-spl.ldr +endif + +LDR_FLAGS += --bcode=$(CONFIG_SC_BOOT_MODE) +LDR_FLAGS += --use-vmas diff --git a/arch/arm/mach-sc5xx/init/Makefile b/arch/arm/mach-sc5xx/init/Makefile new file mode 100644 index 0000000000..9d4920fe07 --- /dev/null +++ b/arch/arm/mach-sc5xx/init/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# (C) Copyright 2022 - Analog Devices, Inc. +# +# Written and/or maintained by Timesys Corporation +# +# Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com +# Contact: Greg Malysa greg.malysa@timesys.com +# + +obj-y += dmcinit.o clkinit.o diff --git a/arch/arm/mach-sc5xx/init/clkinit.c b/arch/arm/mach-sc5xx/init/clkinit.c new file mode 100644 index 0000000000..ae53cd61ef --- /dev/null +++ b/arch/arm/mach-sc5xx/init/clkinit.c @@ -0,0 +1,558 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/io.h> +#include <linux/types.h> +#include "clkinit.h" +#include "dmcinit.h" + +#ifdef CONFIG_CGU0_SCLK0_DIV + #define VAL_CGU0_SCLK0_DIV CONFIG_CGU0_SCLK0_DIV +#else + #define VAL_CGU0_SCLK0_DIV 1 +#endif +#ifdef CONFIG_CGU0_SCLK1_DIV + #define VAL_CGU0_SCLK1_DIV CONFIG_CGU0_SCLK1_DIV +#else + #define VAL_CGU0_SCLK1_DIV 1 +#endif +#ifdef CONFIG_CGU0_DIV_S0SELEX + #define VAL_CGU0_DIV_S0SELEX CONFIG_CGU0_DIV_S0SELEX +#else + #define VAL_CGU0_DIV_S0SELEX -1 +#endif +#ifdef CONFIG_CGU0_DIV_S1SELEX + #define VAL_CGU0_DIV_S1SELEX CONFIG_CGU0_DIV_S1SELEX +#else + #define VAL_CGU0_DIV_S1SELEX -1 +#endif +#ifdef CONFIG_CGU0_CLKOUTSEL + #define VAL_CGU0_CLKOUTSEL CONFIG_CGU0_CLKOUTSEL +#else + #define VAL_CGU0_CLKOUTSEL -1 +#endif +#ifdef CONFIG_CGU1_SCLK0_DIV + #define VAL_CGU1_SCLK0_DIV CONFIG_CGU1_SCLK0_DIV +#else + #define VAL_CGU1_SCLK0_DIV 1 +#endif +#ifdef CONFIG_CGU1_SCLK1_DIV + #define VAL_CGU1_SCLK1_DIV CONFIG_CGU1_SCLK1_DIV +#else + #define VAL_CGU1_SCLK1_DIV 1 +#endif +#ifdef CONFIG_CGU1_DIV_S0SELEX + #define VAL_CGU1_DIV_S0SELEX CONFIG_CGU1_DIV_S0SELEX +#else + #define VAL_CGU1_DIV_S0SELEX -1 +#endif +#ifdef CONFIG_CGU1_DIV_S1SELEX + #define VAL_CGU1_DIV_S1SELEX CONFIG_CGU1_DIV_S1SELEX +#else + #define VAL_CGU1_DIV_S1SELEX -1 +#endif +#ifdef CONFIG_CGU1_CLKOUTSEL + #define VAL_CGU1_CLKOUTSEL CONFIG_CGU1_CLKOUTSEL +#else + #define VAL_CGU1_CLKOUTSEL -1 +#endif + +#define REG_MISC_REG10_tst_addr 0x310A902C + +#define CGU0_REGBASE 0x3108D000 +#define CGU1_REGBASE 0x3108E000 + +#define CGU_CTL 0x00 // CGU0 Control Register +#define CGU_PLLCTL 0x04 // CGU0 PLL Control Register +#define CGU_STAT 0x08 // CGU0 Status Register +#define CGU_DIV 0x0C // CGU0 Clocks Divisor Register +#define CGU_CLKOUTSEL 0x10 // CGU0 CLKOUT Select Register +#define CGU_DIVEX 0x40 // CGU0 DIV Register Extension + +#define BITP_CGU_DIV_OSEL 22 // OUTCLK Divisor +#define BITP_CGU_DIV_DSEL 16 // DCLK Divisor +#define BITP_CGU_DIV_S1SEL 13 // SCLK 1 Divisor +#define BITP_CGU_DIV_SYSSEL 8 // SYSCLK Divisor +#define BITP_CGU_DIV_S0SEL 5 // SCLK 0 Divisor +#define BITP_CGU_DIV_CSEL 0 // CCLK Divisor + +#define BITP_CGU_CTL_MSEL 8 // Multiplier Select +#define BITP_CGU_CTL_DF 0 // Divide Frequency + +#define BITM_CGU_STAT_CLKSALGN 0x00000008 +#define BITM_CGU_STAT_PLOCK 0x00000004 +#define BITM_CGU_STAT_PLLBP 0x00000002 +#define BITM_CGU_STAT_PLLEN 0x00000001 + +/* PLL Multiplier and Divisor Selections (Required Value, Bit Position) */ +/* PLL Multiplier Select */ +#define MSEL(X) (((X) << BITP_CGU_CTL_MSEL) & \ + BITM_CGU_CTL_MSEL) +/* Divide frequency[true or false] */ +#define DF(X) (((X) << BITP_CGU_CTL_DF) & \ + BITM_CGU_CTL_DF) +/* Core Clock Divisor Select */ +#define CSEL(X) (((X) << BITP_CGU_DIV_CSEL) & \ + BITM_CGU_DIV_CSEL) +/* System Clock Divisor Select */ +#define SYSSEL(X) (((X) << BITP_CGU_DIV_SYSSEL) & \ + BITM_CGU_DIV_SYSSEL) +/* SCLK0 Divisor Select */ +#define S0SEL(X) (((X) << BITP_CGU_DIV_S0SEL) & \ + BITM_CGU_DIV_S0SEL) +/* SCLK1 Divisor Select */ +#define S1SEL(X) (((X) << BITP_CGU_DIV_S1SEL) & \ + BITM_CGU_DIV_S1SEL) +/* DDR Clock Divisor Select */ +#define DSEL(X) (((X) << BITP_CGU_DIV_DSEL) & \ + BITM_CGU_DIV_DSEL) +/* OUTCLK Divisor Select */ +#define OSEL(X) (((X) << BITP_CGU_DIV_OSEL) & \ + BITM_CGU_DIV_OSEL) +/* CLKOUT select */ +#define CLKOUTSEL(X) (((X) << BITP_CGU_CLKOUTSEL_CLKOUTSEL) & \ + BITM_CGU_CLKOUTSEL_CLKOUTSEL) +#define S0SELEX(X) (((X) << BITP_CGU_DIVEX_S0SELEX) & \ + BITM_CGU_DIVEX_S0SELEX) +#define S1SELEX(X) (((X) << BITP_CGU_DIVEX_S1SELEX) & \ + BITM_CGU_DIVEX_S1SELEX) + +struct CGU_Settings { + phys_addr_t rbase; + u32 ctl_MSEL:7; + u32 ctl_DF:1; + u32 div_CSEL:5; + u32 div_SYSSEL:5; + u32 div_S0SEL:3; + u32 div_S1SEL:3; + u32 div_DSEL:5; + u32 div_OSEL:7; + s16 divex_S0SELEX; + s16 divex_S1SELEX; + s8 clkoutsel; +}; + +/* CGU Registers */ +#define BITM_CGU_CTL_LOCK 0x80000000 /* Lock */ + +#define BITM_CGU_CTL_MSEL 0x00007F00 /* Multiplier Select */ +#define BITM_CGU_CTL_DF 0x00000001 /* Divide Frequency */ +#define BITM_CGU_CTL_S1SELEXEN 0x00020000 /* SCLK1 Extension Divider Enable */ +#define BITM_CGU_CTL_S0SELEXEN 0x00010000 /* SCLK0 Extension Divider Enable */ + +#define BITM_CGU_DIV_LOCK 0x80000000 /* Lock */ +#define BITM_CGU_DIV_UPDT 0x40000000 /* Update Clock Divisors */ +#define BITM_CGU_DIV_ALGN 0x20000000 /* Align */ +#define BITM_CGU_DIV_OSEL 0x1FC00000 /* OUTCLK Divisor */ +#define BITM_CGU_DIV_DSEL 0x001F0000 /* DCLK Divisor */ +#define BITM_CGU_DIV_S1SEL 0x0000E000 /* SCLK 1 Divisor */ +#define BITM_CGU_DIV_SYSSEL 0x00001F00 /* SYSCLK Divisor */ +#define BITM_CGU_DIV_S0SEL 0x000000E0 /* SCLK 0 Divisor */ +#define BITM_CGU_DIV_CSEL 0x0000001F /* CCLK Divisor */ + +#define BITP_CGU_DIVEX_S0SELEX 0 +#define BITM_CGU_DIVEX_S0SELEX 0x000000FF /* SCLK 0 Extension Divisor */ + +#define BITP_CGU_DIVEX_S1SELEX 16 +#define BITM_CGU_DIVEX_S1SELEX 0x00FF0000 /* SCLK 1 Extension Divisor */ + +#define BITM_CGU_PLLCTL_PLLEN 0x00000008 /* PLL Enable */ +#define BITM_CGU_PLLCTL_PLLBPCL 0x00000002 /* PLL Bypass Clear */ +#define BITM_CGU_PLLCTL_PLLBPST 0x00000001 /* PLL Bypass Set */ + +#define BITP_CGU_CLKOUTSEL_CLKOUTSEL 0 /* CLKOUT Select */ +#define BITM_CGU_CLKOUTSEL_CLKOUTSEL 0x0000001F /* CLKOUT Select */ + +#define CGU_STAT_MASK (BITM_CGU_STAT_PLLEN | BITM_CGU_STAT_PLOCK | \ + BITM_CGU_STAT_CLKSALGN) +#define CGU_STAT_ALGN_LOCK (BITM_CGU_STAT_PLLEN | BITM_CGU_STAT_PLOCK) + +/* Clock Distribution Unit Registers */ +#define REG_CDU0_CFG0 0x3108F000 +#define REG_CDU0_CFG1 0x3108F004 +#define REG_CDU0_CFG2 0x3108F008 +#define REG_CDU0_CFG3 0x3108F00C +#define REG_CDU0_CFG4 0x3108F010 +#define REG_CDU0_CFG5 0x3108F014 +#define REG_CDU0_CFG6 0x3108F018 +#define REG_CDU0_CFG7 0x3108F01C +#define REG_CDU0_CFG8 0x3108F020 +#define REG_CDU0_CFG9 0x3108F024 +#define REG_CDU0_CFG10 0x3108F028 +#define REG_CDU0_CFG11 0x3108F02C +#define REG_CDU0_CFG12 0x3108F030 +#define REG_CDU0_CFG13 0x3108F034 +#define REG_CDU0_CFG14 0x3108F038 +#define REG_CDU0_STAT 0x3108F040 +#define REG_CDU0_CLKINSEL 0x3108F044 +#define REG_CDU0_REVID 0x3108F048 + +#define BITM_REG10_MSEL3 0x000007F0 +#define BITP_REG10_MSEL3 4 + +#define BITM_REG10_DSEL3 0x0001F000 +#define BITP_REG10_DSEL3 12 + +/* Selected clock macros */ +#define CGUn_MULT(cgu) ((CONFIG_CGU##cgu##_VCO_MULT == 0) ? \ + 128 : CONFIG_CGU##cgu##_VCO_MULT) +#define CGUn_DIV(clkname, cgu) ((CONFIG_CGU##cgu##_##clkname##_DIV == 0) ? \ + 32 : CONFIG_CGU##cgu##_##clkname##_DIV) +#define CCLK1_n_RATIO(cgu) (((CGUn_MULT(cgu)) / \ + (1 + CONFIG_CGU##cgu##_DF_DIV)) / \ + CGUn_DIV(CCLK, cgu)) +#define CCLK2_n_RATIO(cgu) (((CGUn_MULT(cgu) * 2) / 3) / \ + (1 + CONFIG_CGU##cgu##_DF_DIV)) +#define DCLK_n_RATIO(cgu) (((CGUn_MULT(cgu)) / \ + (1 + CONFIG_CGU##cgu##_DF_DIV)) / \ + CGUn_DIV(DCLK, cgu)) +#define SYSCLK_n_RATIO(cgu) (((CGUn_MULT(cgu)) / \ + (1 + CONFIG_CGU##cgu##_DF_DIV)) / \ + CGUn_DIV(SCLK, cgu)) +#define PLL3_RATIO ((CONFIG_CGU1_PLL3_VCO_MSEL) / \ + (CONFIG_CGU1_PLL3_DCLK_DIV)) + +#if (1 == CONFIG_CDU0_CLKO2) + #define ARMCLK_IN 0 + #define ARMCLK_RATIO CCLK1_n_RATIO(0) +#elif (3 == CONFIG_CDU0_CLKO2) && \ + (defined(CONFIG_SC57X) || defined(CONFIG_SC58X)) + #define ARMCLK_IN 0 + #define ARMCLK_RATIO SYSCLK_n_RATIO(0) +#elif (5 == CONFIG_CDU0_CLKO2) && defined(CONFIG_SC59X_64) + #define ARMCLK_IN 0 + #define ARMCLK_RATIO CCLK2_n_RATIO(0) +#elif (7 == CONFIG_CDU0_CLKO2) && defined(CONFIG_SC59X_64) + #define ARMCLK_IN CDU0_CGU1_CLKIN + #define ARMCLK_RATIO CCLK2_n_RATIO(1) +#endif + +#ifdef CONFIG_CGU1_PLL3_DDRCLK + #define DDRCLK_IN CDU0_CGU1_CLKIN + #define DDRCLK_RATIO PLL3_RATIO +#elif (1 == CONFIG_CDU0_CLKO3) + #define DDRCLK_IN 0 + #define DDRCLK_RATIO DCLK_n_RATIO(0) +#elif (3 == CONFIG_CDU0_CLKO3) + #define DDRCLK_IN CDU0_CGU1_CLKIN + #define DDRCLK_RATIO DCLK_n_RATIO(1) +#endif + +#ifndef ARMCLK_RATIO + #error Invalid/unknown ARMCLK selection! +#endif +#ifndef DDRCLK_RATIO + #error Invalid/unknown DDRCLK selection! +#endif + +#define ARMDDR_CLK_RATIO_FPERCISION 1000 + +#if ARMCLK_IN != DDRCLK_IN + #ifndef CUSTOM_ARMDDR_CLK_RATIO + /** + * SYS_CLKINx are defined within the device tree, not configs. + * Thus, we can only determine cross-CGU clock ratios if they + * use the same SYS_CLKINx. + */ + #error Define CUSTOM_ARMDDR_CLK_RATIO for different SYS_CLKINs + #else + #define ARMDDR_CLK_RATIO CUSTOM_ARMDDR_CLK_RATIO + #endif +#else + #define ARMDDR_CLK_RATIO (ARMDDR_CLK_RATIO_FPERCISION *\ + ARMCLK_RATIO / DDRCLK_RATIO) +#endif + +void dmcdelay(uint32_t delay) +{ + /* There is no zero-overhead loop on ARM, so assume each iteration + * takes 4 processor cycles (based on examination of -O3 and -Ofast + * output). + */ + u32 i, remainder; + + /* Convert DDR cycles to core clock cycles */ + u32 f = delay * ARMDDR_CLK_RATIO; + + delay = f + 500; + delay /= ARMDDR_CLK_RATIO_FPERCISION; + + /* Round up to multiple of 4 */ + remainder = delay % 4; + if (remainder != 0u) + delay += (4u - remainder); + + for (i = 0; i < delay; i += 4) + asm("nop"); +} + +static void program_cgu(const struct CGU_Settings *cgu) +{ + const uintptr_t b = cgu->rbase; + const bool use_extension0 = cgu->divex_S0SELEX >= 0; + const bool use_extension1 = cgu->divex_S1SELEX >= 0; + u32 temp; + + temp = OSEL(cgu->div_OSEL); + temp |= SYSSEL(cgu->div_SYSSEL); + temp |= CSEL(cgu->div_CSEL); + temp |= DSEL(cgu->div_DSEL); + temp |= (S0SEL(cgu->div_S0SEL)); + temp |= (S1SEL(cgu->div_S1SEL)); + temp &= ~BITM_CGU_DIV_LOCK; + + //Put PLL in to Bypass Mode + writel(BITM_CGU_PLLCTL_PLLEN | BITM_CGU_PLLCTL_PLLBPST, + b + CGU_PLLCTL); + while (!(readl(b + CGU_STAT) & BITM_CGU_STAT_PLLBP)) + ; + + while (!((readl(b + CGU_STAT) & CGU_STAT_MASK) == CGU_STAT_ALGN_LOCK)) + ; + + dmcdelay(1000); + + writel(temp & (~BITM_CGU_DIV_ALGN) & (~BITM_CGU_DIV_UPDT), + b + CGU_DIV); + + dmcdelay(1000); + + temp = MSEL(cgu->ctl_MSEL) | DF(cgu->ctl_DF); + if (use_extension0) + temp |= BITM_CGU_CTL_S0SELEXEN; + if (use_extension1) + temp |= BITM_CGU_CTL_S1SELEXEN; + + writel(temp & (~BITM_CGU_CTL_LOCK), b + CGU_CTL); + + if (use_extension0 || use_extension1) { + u32 mask = BITM_CGU_CTL_S1SELEXEN | BITM_CGU_CTL_S0SELEXEN; + + while (!(readl(b + CGU_CTL) & mask)) + ; + + temp = readl(b + CGU_DIVEX); + + if (use_extension0) { + temp &= ~BITM_CGU_DIVEX_S0SELEX; + temp |= S0SELEX(cgu->divex_S0SELEX); + } + + if (use_extension1) { + temp &= ~BITM_CGU_DIVEX_S1SELEX; + temp |= S1SELEX(cgu->divex_S1SELEX); + } + + writel(temp, b + CGU_DIVEX); + } + + dmcdelay(1000); + + //Take PLL out of Bypass Mode + writel(BITM_CGU_PLLCTL_PLLEN | BITM_CGU_PLLCTL_PLLBPCL, + b + CGU_PLLCTL); + while ((readl(b + CGU_STAT) & + (BITM_CGU_STAT_PLLBP | BITM_CGU_STAT_CLKSALGN))) + ; + + dmcdelay(1000); + + if (cgu->clkoutsel >= 0) { + temp = readl(b + CGU_CLKOUTSEL); + temp &= ~BITM_CGU_CLKOUTSEL_CLKOUTSEL; + temp |= CLKOUTSEL(cgu->clkoutsel); + writel(temp, b + CGU_CLKOUTSEL); + } +} + +void adi_config_third_pll(void) +{ +#if defined(CONFIG_CGU1_PLL3_VCO_MSEL) && defined(CONFIG_CGU1_PLL3_DCLK_DIV) + u32 temp; + + u32 msel = CONFIG_CGU1_PLL3_VCO_MSEL - 1; + u32 dsel = CONFIG_CGU1_PLL3_DCLK_DIV - 1; + + temp = readl(REG_MISC_REG10_tst_addr); + temp &= 0xFFFE0000; + writel(temp, REG_MISC_REG10_tst_addr); + + dmcdelay(4000u); + + //update MSEL [10:4] + temp = readl(REG_MISC_REG10_tst_addr); + temp |= ((msel << BITP_REG10_MSEL3) & BITM_REG10_MSEL3); + writel(temp, REG_MISC_REG10_tst_addr); + + temp = readl(REG_MISC_REG10_tst_addr); + temp |= 0x2; + writel(temp, REG_MISC_REG10_tst_addr); + + dmcdelay(100000u); + + temp = readl(REG_MISC_REG10_tst_addr); + temp |= 0x1; + writel(temp, REG_MISC_REG10_tst_addr); + + temp = readl(REG_MISC_REG10_tst_addr); + temp |= 0x800; + writel(temp, REG_MISC_REG10_tst_addr); + + temp = readl(REG_MISC_REG10_tst_addr); + temp &= 0xFFFFF7F8; + writel(temp, REG_MISC_REG10_tst_addr); + + dmcdelay(4000u); + + temp = readl(REG_MISC_REG10_tst_addr); + temp |= ((dsel << BITP_REG10_DSEL3) & BITM_REG10_DSEL3); + writel(temp, REG_MISC_REG10_tst_addr); + + temp = readl(REG_MISC_REG10_tst_addr); + temp |= 0x4; + writel(temp, REG_MISC_REG10_tst_addr); + + dmcdelay(100000u); + + temp = readl(REG_MISC_REG10_tst_addr); + temp |= 0x1; + writel(temp, REG_MISC_REG10_tst_addr); + + temp = readl(REG_MISC_REG10_tst_addr); + temp |= 0x800; + writel(temp, REG_MISC_REG10_tst_addr); +#endif +} + +static void Active_To_Fullon(const struct CGU_Settings *pCGU) +{ + u32 tmp; + + while (1) { + tmp = readl(pCGU->rbase + CGU_STAT); + if ((tmp & BITM_CGU_STAT_PLLEN) && + (tmp & BITM_CGU_STAT_PLLBP)) + break; + } + + writel(BITM_CGU_PLLCTL_PLLBPCL, pCGU->rbase + CGU_PLLCTL); + + while (1) { + tmp = readl(pCGU->rbase + CGU_STAT); + if ((tmp & BITM_CGU_STAT_PLLEN) && + ~(tmp & BITM_CGU_STAT_PLLBP) && + ~(tmp & BITM_CGU_STAT_CLKSALGN)) + break; + } +} + +static void CGU_Init(const struct CGU_Settings *pCGU) +{ + const uintptr_t b = pCGU->rbase; + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + if (readl(b + CGU_STAT) & BITM_CGU_STAT_PLLEN) + writel(BITM_CGU_PLLCTL_PLLEN, b + CGU_PLLCTL); + + dmcdelay(1000); +#endif + + /* Check if processor is in Active mode */ + if (readl(b + CGU_STAT) & BITM_CGU_STAT_PLLBP) + Active_To_Fullon(pCGU); + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + dmcdelay(1000); +#endif + + program_cgu(pCGU); +} + +void cgu_init(void) +{ + const struct CGU_Settings dividers0 = { + .rbase = CGU0_REGBASE, + .ctl_MSEL = CONFIG_CGU0_VCO_MULT, + .ctl_DF = CONFIG_CGU0_DF_DIV, + .div_CSEL = CONFIG_CGU0_CCLK_DIV, + .div_SYSSEL = CONFIG_CGU0_SCLK_DIV, + .div_S0SEL = VAL_CGU0_SCLK0_DIV, + .div_S1SEL = VAL_CGU0_SCLK1_DIV, + .div_DSEL = CONFIG_CGU0_DCLK_DIV, + .div_OSEL = CONFIG_CGU0_OCLK_DIV, + .divex_S0SELEX = VAL_CGU0_DIV_S0SELEX, + .divex_S1SELEX = VAL_CGU0_DIV_S1SELEX, + .clkoutsel = VAL_CGU0_CLKOUTSEL, + }; + const struct CGU_Settings dividers1 = { + .rbase = CGU1_REGBASE, + .ctl_MSEL = CONFIG_CGU1_VCO_MULT, + .ctl_DF = CONFIG_CGU1_DF_DIV, + .div_CSEL = CONFIG_CGU1_CCLK_DIV, + .div_SYSSEL = CONFIG_CGU1_SCLK_DIV, + .div_S0SEL = VAL_CGU1_SCLK0_DIV, + .div_S1SEL = VAL_CGU1_SCLK1_DIV, + .div_DSEL = CONFIG_CGU1_DCLK_DIV, + .div_OSEL = CONFIG_CGU1_OCLK_DIV, + .divex_S0SELEX = VAL_CGU1_DIV_S0SELEX, + .divex_S1SELEX = VAL_CGU1_DIV_S1SELEX, + .clkoutsel = VAL_CGU1_CLKOUTSEL, + }; + + CGU_Init(&dividers0); + CGU_Init(&dividers1); +} + +#define CONFIGURE_CDU0(a, b, c) \ + writel(a, b); \ + while (readl(REG_CDU0_STAT) & (1 << (c))) + +void cdu_init(void) +{ + while (readl(REG_CDU0_STAT) & 0xffff) + ; + writel((CONFIG_CDU0_CGU1_CLKIN & 0x1), REG_CDU0_CLKINSEL); + + CONFIGURE_CDU0(CONFIG_CDU0_CLKO0, REG_CDU0_CFG0, 0); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO1, REG_CDU0_CFG1, 1); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO2, REG_CDU0_CFG2, 2); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO3, REG_CDU0_CFG3, 3); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO4, REG_CDU0_CFG4, 4); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO5, REG_CDU0_CFG5, 5); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO6, REG_CDU0_CFG6, 6); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO7, REG_CDU0_CFG7, 7); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO8, REG_CDU0_CFG8, 8); + CONFIGURE_CDU0(CONFIG_CDU0_CLKO9, REG_CDU0_CFG9, 9); +#ifdef CONFIG_CDU0_CLKO10 + CONFIGURE_CDU0(CONFIG_CDU0_CLKO10, REG_CDU0_CFG10, 10); +#endif +#ifdef CONFIG_CDU0_CLKO12 + CONFIGURE_CDU0(CONFIG_CDU0_CLKO12, REG_CDU0_CFG12, 12); +#endif +#ifdef CONFIG_CDU0_CLKO13 + CONFIGURE_CDU0(CONFIG_CDU0_CLKO13, REG_CDU0_CFG13, 13); +#endif +#ifdef CONFIG_CDU0_CLKO14 + CONFIGURE_CDU0(CONFIG_CDU0_CLKO14, REG_CDU0_CFG14, 14); +#endif +} + +void clks_init(void) +{ + adi_dmc_reset_lanes(true); + + cdu_init(); + cgu_init(); + + adi_config_third_pll(); + + adi_dmc_reset_lanes(false); +} diff --git a/arch/arm/mach-sc5xx/init/clkinit.h b/arch/arm/mach-sc5xx/init/clkinit.h new file mode 100644 index 0000000000..b05f4325bf --- /dev/null +++ b/arch/arm/mach-sc5xx/init/clkinit.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#ifndef CLKINIT_H_ +#define CLKINIT_H_ + +void clks_init(void); + +void dmcdelay(uint32_t delay); + +#endif diff --git a/arch/arm/mach-sc5xx/init/dmcinit.c b/arch/arm/mach-sc5xx/init/dmcinit.c new file mode 100644 index 0000000000..e375b5c9df --- /dev/null +++ b/arch/arm/mach-sc5xx/init/dmcinit.c @@ -0,0 +1,954 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <asm/io.h> +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <linux/types.h> +#include "clkinit.h" +#include "dmcinit.h" + +#define REG_DMC0_BASE 0x31070000 +#define REG_DMC1_BASE 0x31073000 + +#define REG_DMC_CTL 0x0004 // Control Register +#define REG_DMC_STAT 0x0008 // Status Register +#define REG_DMC_CFG 0x0040 // Configuration Register +#define REG_DMC_TR0 0x0044 // Timing 0 Register +#define REG_DMC_TR1 0x0048 // Timing 1 Register +#define REG_DMC_TR2 0x004C // Timing 2 Register +#define REG_DMC_MR 0x0060 // Shadow MR Register (DDR3) +#define REG_DMC_EMR1 0x0064 // Shadow EMR1 Register +#define REG_DMC_EMR2 0x0068 // Shadow EMR2 Register +#define REG_DMC_EMR3 0x006C +#define REG_DMC_DLLCTL 0x0080 // DLL Control Register +#define REG_DMC_DT_CALIB_ADDR 0x0090 // Data Calibration Address Register +#define REG_DMC_CPHY_CTL 0x01C0 // Controller to PHY Interface Register + +/* SC57x && SC58x DMC REGs */ +#define REG_DMC_PHY_CTL0 0x1000 // PHY Control 0 Register +#define REG_DMC_PHY_CTL1 0x1004 // PHY Control 1 Register +#define REG_DMC_PHY_CTL2 0x1008 // PHY Control 2 Register +#define REG_DMC_PHY_CTL3 0x100c // PHY Control 3 Register +#define REG_DMC_PHY_CTL4 0x1010 // PHY Control 4 Register +#define REG_DMC_CAL_PADCTL0 0x1034 // CALIBRATION PAD CTL 0 Register +#define REG_DMC_CAL_PADCTL2 0x103C // CALIBRATION PAD CTL2 Register +/* END */ + +/* SC59x DMC REGs */ +#define REG_DMC_DDR_LANE0_CTL0 0x1000 // Data Lane 0 Control Register 0 +#define REG_DMC_DDR_LANE0_CTL1 0x1004 // Data Lane 0 Control Register 1 +#define REG_DMC_DDR_LANE1_CTL0 0x100C // Data Lane 1 Control Register 0 +#define REG_DMC_DDR_LANE1_CTL1 0x1010 // Data Lane 1 Control Register 1 +#define REG_DMC_DDR_ROOT_CTL 0x1018 // DDR ROOT Module Control Register +#define REG_DMC_DDR_ZQ_CTL0 0x1034 // DDR Calibration Control Register 0 +#define REG_DMC_DDR_ZQ_CTL1 0x1038 // DDR Calibration Control Register 1 +#define REG_DMC_DDR_ZQ_CTL2 0x103C // DDR Calibration Control Register 2 +#define REG_DMC_DDR_CA_CTL 0x1068 // DDR CA Lane Control Register +/* END */ + +#define REG_DMC_DDR_SCRATCH_2 0x1074 +#define REG_DMC_DDR_SCRATCH_3 0x1078 +#define REG_DMC_DDR_SCRATCH_6 0x1084 +#define REG_DMC_DDR_SCRATCH_7 0x1088 + +#define REG_DMC_DDR_SCRATCH_STAT0 0x107C +#define REG_DMC_DDR_SCRATCH_STAT1 0x1080 + +#define DMC0_DATA_CALIB_ADD 0x80000000 +#define DMC1_DATA_CALIB_ADD 0xC0000000 + +#define BITM_DMC_CFG_EXTBANK 0x0000F000 /* External Banks */ +#define ENUM_DMC_CFG_EXTBANK1 0x00000000 /* EXTBANK: 1 External Bank */ +#define BITM_DMC_CFG_SDRSIZE 0x00000F00 /* SDRAM Size */ +#define ENUM_DMC_CFG_SDRSIZE64 0x00000000 /* SDRSIZE: 64M Bit SDRAM (LPDDR Only) */ +#define ENUM_DMC_CFG_SDRSIZE128 0x00000100 /* SDRSIZE: 128M Bit SDRAM (LPDDR Only) */ +#define ENUM_DMC_CFG_SDRSIZE256 0x00000200 /* SDRSIZE: 256M Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE512 0x00000300 /* SDRSIZE: 512M Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE1G 0x00000400 /* SDRSIZE: 1G Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE2G 0x00000500 /* SDRSIZE: 2G Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE4G 0x00000600 /* SDRSIZE: 4G Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE8G 0x00000700 /* SDRSIZE: 8G Bit SDRAM */ +#define BITM_DMC_CFG_SDRWID 0x000000F0 /* SDRAM Width */ +#define ENUM_DMC_CFG_SDRWID16 0x00000020 /* SDRWID: 16-Bit Wide SDRAM */ +#define BITM_DMC_CFG_IFWID 0x0000000F /* Interface Width */ +#define ENUM_DMC_CFG_IFWID16 0x00000002 /* IFWID: 16-Bit Wide Interface */ + +#define BITM_DMC_CTL_DDR3EN 0x00000001 +#define BITM_DMC_CTL_INIT 0x00000004 +#define BITP_DMC_STAT_INITDONE 2 /* Initialization Done */ +#define BITM_DMC_STAT_INITDONE 0x00000004 + +#define BITP_DMC_CTL_AL_EN 27 +#define BITP_DMC_CTL_ZQCL 25 /* ZQ Calibration Long */ +#define BITP_DMC_CTL_ZQCS 24 /* ZQ Calibration Short */ +#define BITP_DMC_CTL_DLLCAL 13 /* DLL Calibration Start */ +#define BITP_DMC_CTL_PPREF 12 /* Postpone Refresh */ +#define BITP_DMC_CTL_RDTOWR 9 /* Read-to-Write Cycle */ +#define BITP_DMC_CTL_ADDRMODE 8 /* Addressing (Page/Bank) Mode */ +#define BITP_DMC_CTL_RESET 7 /* Reset SDRAM */ +#define BITP_DMC_CTL_PREC 6 /* Precharge */ +#define BITP_DMC_CTL_DPDREQ 5 /* Deep Power Down Request */ +#define BITP_DMC_CTL_PDREQ 4 /* Power Down Request */ +#define BITP_DMC_CTL_SRREQ 3 /* Self Refresh Request */ +#define BITP_DMC_CTL_INIT 2 /* Initialize DRAM Start */ +#define BITP_DMC_CTL_LPDDR 1 /* Low Power DDR Mode */ +#define BITP_DMC_CTL_DDR3EN 0 /* DDR3 Mode */ + +#ifdef CONFIG_TARGET_SC584_EZKIT + #define DMC_PADCTL2_VALUE 0x0078283C +#elif CONFIG_TARGET_SC573_EZKIT + #define DMC_PADCTL2_VALUE 0x00782828 +#elif CONFIG_TARGET_SC589_MINI || CONFIG_TARGET_SC589_EZKIT + #define DMC_PADCTL2_VALUE 0x00783C3C +#elif defined(CONFIG_SC57X) || defined(CONFIG_SC58X) + #error "PADCTL2 not specified for custom board!" +#else + //Newer DMC. Legacy calibration obsolete + #define DMC_PADCTL2_VALUE 0x0 +#endif + +#define DMC_CPHYCTL_VALUE 0x0000001A + +#define BITP_DMC_MR1_QOFF 12 /* Output Buffer Enable */ +#define BITP_DMC_MR1_TDQS 11 /* Termination Data Strobe */ +#define BITP_DMC_MR1_RTT2 9 /* Rtt_nom */ +#define BITP_DMC_MR1_WL 7 /* Write Leveling Enable. */ +#define BITP_DMC_MR1_RTT1 6 /* Rtt_nom */ +#define BITP_DMC_MR1_DIC1 5 /* Output Driver Impedance Control */ +#define BITP_DMC_MR1_AL 3 /* Additive Latency */ +#define BITP_DMC_MR1_RTT0 2 /* Rtt_nom */ +#define BITP_DMC_MR1_DIC0 1 /* Output Driver Impedance control */ +#define BITP_DMC_MR1_DLLEN 0 /* DLL Enable */ + +#define BITP_DMC_MR2_CWL 3 /* CAS write Latency */ + +#define BITP_DMC_TR0_TMRD 28 /* Timing Mode Register Delay */ +#define BITP_DMC_TR0_TRC 20 /* Timing Row Cycle */ +#define BITP_DMC_TR0_TRAS 12 /* Timing Row Active Time */ +#define BITP_DMC_TR0_TRP 8 /* Timing RAS Precharge. */ +#define BITP_DMC_TR0_TWTR 4 /* Timing Write to Read */ +#define BITP_DMC_TR0_TRCD 0 /* Timing RAS to CAS Delay */ + +#define BITP_DMC_TR1_TRRD 28 /* Timing Read-Read Delay */ +#define BITP_DMC_TR1_TRFC 16 /* Timing Refresh-to-Command */ +#define BITP_DMC_TR1_TREF 0 /* Timing Refresh Interval */ + +#define BITP_DMC_TR2_TCKE 20 /* Timing Clock Enable */ +#define BITP_DMC_TR2_TXP 16 /* Timing Exit Powerdown */ +#define BITP_DMC_TR2_TWR 12 /* Timing Write Recovery */ +#define BITP_DMC_TR2_TRTP 8 /* Timing Read-to-Precharge */ +#define BITP_DMC_TR2_TFAW 0 /* Timing Four-Activated-Window */ + +#define BITP_DMC_MR_PD 12 /* Active Powerdown Mode */ +#define BITP_DMC_MR_WRRECOV 9 /* Write Recovery */ +#define BITP_DMC_MR_DLLRST 8 /* DLL Reset */ +#define BITP_DMC_MR_CL 4 /* CAS Latency */ +#define BITP_DMC_MR_CL0 2 /* CAS Latency */ +#define BITP_DMC_MR_BLEN 0 /* Burst Length */ + +#define BITP_DMC_DLLCTL_DATACYC 8 /* Data Cycles */ +#define BITP_DMC_DLLCTL_DLLCALRDCNT 0 /* DLL Calibration RD Count */ + +#define BITM_DMC_DLLCTL_DATACYC 0x00000F00 /* Data Cycles */ +#define BITM_DMC_DLLCTL_DLLCALRDCNT 0x000000FF /* DLL Calib RD Count */ + +#define BITP_DMC_STAT_PHYRDPHASE 20 /* PHY Read Phase */ + +#define BITM_DMC_DDR_LANE0_CTL0_CB_RSTDAT 0x08000000 /* Rst Data Pads */ +#define BITM_DMC_DDR_LANE1_CTL0_CB_RSTDAT 0x08000000 /* Rst Data Pads */ +#define BITM_DMC_DDR_LANE0_CTL1_COMP_DCYCLE 0x00000002 /* Compute Dcycle */ +#define BITM_DMC_DDR_LANE1_CTL1_COMP_DCYCLE 0x00000002 /* Compute Dcycle */ +#define BITM_DMC_DDR_LANE1_CTL0_CB_RSTDLL 0x00000100 /* Rst Lane DLL */ +#define BITM_DMC_DDR_LANE0_CTL0_CB_RSTDLL 0x00000100 /* Rst Lane DLL */ +#define BITP_DMC_DDR_ROOT_CTL_PIPE_OFSTDCYCLE 10 /* Pipeline offset for PHYC_DATACYCLE */ +#define BITM_DMC_DDR_ROOT_CTL_SW_REFRESH 0x00002000 /* Refresh Lane DLL Code */ +#define BITM_DMC_DDR_CA_CTL_SW_REFRESH 0x00004000 /* Refresh Lane DLL Code */ + +#define BITP_DMC_CTL_RL_DQS 26 /* RL_DQS */ +#define BITM_DMC_CTL_RL_DQS 0x04000000 /* RL_DQS */ +#define BITP_DMC_EMR3_MPR 2 /* Multi Purpose Read Enable (Read Leveling)*/ +#define BITM_DMC_EMR3_MPR 0x00000004 /* Multi Purpose Read Enable (Read Leveling)*/ +#define BITM_DMC_MR1_WL 0x00000080 /* Write Leveling Enable.*/ +#define BITM_DMC_STAT_PHYRDPHASE 0x00F00000 /* PHY Read Phase */ + +#define BITP_DMC_DDR_LANE0_CTL1_BYPCODE 10 +#define BITM_DMC_DDR_LANE0_CTL1_BYPCODE 0x00007C00 +#define BITP_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN 15 +#define BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN 0x00008000 + +#define DMC_ZQCTL0_VALUE 0x00785A64 +#define DMC_ZQCTL1_VALUE 0 +#define DMC_ZQCTL2_VALUE 0x70000000 + +#define DMC_TRIG_CALIB 0 +#define DMC_OFSTDCYCLE 2 + +#define BITP_DMC_CAL_PADCTL0_RTTCALEN 31 /* RTT Calibration Enable */ +#define BITP_DMC_CAL_PADCTL0_PDCALEN 30 /* PULLDOWN Calib Enable */ +#define BITP_DMC_CAL_PADCTL0_PUCALEN 29 /* PULLUP Calib Enable */ +#define BITP_DMC_CAL_PADCTL0_CALSTRT 28 /* Start New Calib ( Hardware Cleared) */ +#define BITM_DMC_CAL_PADCTL0_RTTCALEN 0x80000000 /* RTT Calibration Enable */ +#define BITM_DMC_CAL_PADCTL0_PDCALEN 0x40000000 /* PULLDOWN Calib Enable */ +#define BITM_DMC_CAL_PADCTL0_PUCALEN 0x20000000 /* PULLUP Calib Enable */ +#define BITM_DMC_CAL_PADCTL0_CALSTRT 0x10000000 /* Start New Calib ( Hardware Cleared) */ +#define ENUM_DMC_PHY_CTL4_DDR3 0x00000000 /* DDRMODE: DDR3 Mode */ +#define ENUM_DMC_PHY_CTL4_DDR2 0x00000001 /* DDRMODE: DDR2 Mode */ +#define ENUM_DMC_PHY_CTL4_LPDDR 0x00000003 /* DDRMODE: LPDDR Mode */ + +#define BITP_DMC_DDR_ZQ_CTL0_IMPRTT 16 /* Data/DQS ODT */ +#define BITP_DMC_DDR_ZQ_CTL0_IMPWRDQ 8 /* Data/DQS/DM/CLK Drive Strength */ +#define BITP_DMC_DDR_ZQ_CTL0_IMPWRADD 0 /* Address/Command Drive Strength */ +#define BITM_DMC_DDR_ZQ_CTL0_IMPRTT 0x00FF0000 /* Data/DQS ODT */ +#define BITM_DMC_DDR_ZQ_CTL0_IMPWRDQ 0x0000FF00 /* Data/DQS/DM/CLK Drive Strength */ +#define BITM_DMC_DDR_ZQ_CTL0_IMPWRADD 0x000000FF /* Address/Command Drive Strength */ + +#define BITM_DMC_DDR_ROOT_CTL_TRIG_RD_XFER_ALL 0x00200000 /* All Lane Read Status */ + +#if defined(CONFIG_ADI_USE_DDR2) + #define DMC_MR0_VALUE \ + ((DMC_BL / 4 + 1) << BITP_DMC_MR_BLEN) | \ + (DMC_CL << BITP_DMC_MR_CL) | \ + (DMC_WRRECOV << BITP_DMC_MR_WRRECOV) + + #define DMC_MR1_VALUE \ + (DMC_MR1_AL << BITP_DMC_MR1_AL | 0x04) \ + + #define DMC_MR2_VALUE 0 + #define DMC_MR3_VALUE 0 + + #define DMC_CTL_VALUE \ + (DMC_RDTOWR << BITP_DMC_CTL_RDTOWR) | \ + (1 << BITP_DMC_CTL_DLLCAL) | \ + (BITM_DMC_CTL_INIT) +#else + #define DMC_MR0_VALUE \ + (0 << BITP_DMC_MR_BLEN) | \ + (DMC_CL0 << BITP_DMC_MR_CL0) | \ + (DMC_CL123 << BITP_DMC_MR_CL) | \ + (DMC_WRRECOV << BITP_DMC_MR_WRRECOV) | \ + (1 << BITP_DMC_MR_DLLRST) + + #define DMC_MR1_VALUE \ + (DMC_MR1_DLLEN << BITP_DMC_MR1_DLLEN) | \ + (DMC_MR1_DIC0 << BITP_DMC_MR1_DIC0) | \ + (DMC_MR1_RTT0 << BITP_DMC_MR1_RTT0) | \ + (DMC_MR1_AL << BITP_DMC_MR1_AL) | \ + (DMC_MR1_DIC1 << BITP_DMC_MR1_DIC1) | \ + (DMC_MR1_RTT1 << BITP_DMC_MR1_RTT1) | \ + (DMC_MR1_RTT2 << BITP_DMC_MR1_RTT2) | \ + (DMC_MR1_WL << BITP_DMC_MR1_WL) | \ + (DMC_MR1_TDQS << BITP_DMC_MR1_TDQS) | \ + (DMC_MR1_QOFF << BITP_DMC_MR1_QOFF) + + #define DMC_MR2_VALUE \ + ((DMC_WL) << BITP_DMC_MR2_CWL) + + #define DMC_MR3_VALUE \ + ((DMC_WL) << BITP_DMC_MR2_CWL) + + #define DMC_CTL_VALUE \ + (DMC_RDTOWR << BITP_DMC_CTL_RDTOWR) | \ + (BITM_DMC_CTL_INIT) | \ + (BITM_DMC_CTL_DDR3EN) | \ + (DMC_CTL_AL_EN << BITP_DMC_CTL_AL_EN) +#endif + +#define DMC_DLLCTL_VALUE \ + (DMC_DATACYC << BITP_DMC_DLLCTL_DATACYC) | \ + (DMC_DLLCALRDCNT << BITP_DMC_DLLCTL_DLLCALRDCNT) + +#define DMC_CFG_VALUE \ + ENUM_DMC_CFG_IFWID16 | \ + ENUM_DMC_CFG_SDRWID16 | \ + SDR_CHIP_SIZE | \ + ENUM_DMC_CFG_EXTBANK1 + +#define DMC_TR0_VALUE \ + (DMC_TRCD << BITP_DMC_TR0_TRCD) | \ + (DMC_TWTR << BITP_DMC_TR0_TWTR) | \ + (DMC_TRP << BITP_DMC_TR0_TRP) | \ + (DMC_TRAS << BITP_DMC_TR0_TRAS) | \ + (DMC_TRC << BITP_DMC_TR0_TRC) | \ + (DMC_TMRD << BITP_DMC_TR0_TMRD) + +#define DMC_TR1_VALUE \ + (DMC_TREF << BITP_DMC_TR1_TREF) | \ + (DMC_TRFC << BITP_DMC_TR1_TRFC) | \ + (DMC_TRRD << BITP_DMC_TR1_TRRD) + +#define DMC_TR2_VALUE \ + (DMC_TFAW << BITP_DMC_TR2_TFAW) | \ + (DMC_TRTP << BITP_DMC_TR2_TRTP) | \ + (DMC_TWR << BITP_DMC_TR2_TWR) | \ + (DMC_TXP << BITP_DMC_TR2_TXP) | \ + (DMC_TCKE << BITP_DMC_TR2_TCKE) + +enum DDR_MODE { + DDR3_MODE, + DDR2_MODE, + LPDDR_MODE, +}; + +enum CALIBRATION_MODE { + CALIBRATION_LEGACY, + CALIBRATION_METHOD1, + CALIBRATION_METHOD2, +}; + +static struct dmc_param { + phys_addr_t reg; + u32 ddr_mode; + u32 padctl2_value; + u32 dmc_cphyctl_value; + u32 dmc_cfg_value; + u32 dmc_dllctl_value; + u32 dmc_ctl_value; + u32 dmc_tr0_value; + u32 dmc_tr1_value; + u32 dmc_tr2_value; + u32 dmc_mr0_value; + u32 dmc_mr1_value; + u32 dmc_mr2_value; + u32 dmc_mr3_value; + u32 dmc_zqctl0_value; + u32 dmc_zqctl1_value; + u32 dmc_zqctl2_value; + u32 dmc_data_calib_add_value; + bool phy_init_required; + bool anomaly_20000037_applicable; + enum CALIBRATION_MODE calib_mode; +} dmc; + +#ifdef CONFIG_SC59X_64 +#define DQS_DEFAULT_DELAY 3ul + +#define DELAYTRIM 1 +#define LANE0_DQS_DELAY 1 +#define LANE1_DQS_DELAY 1 + +#define CLKDIR 0ul + +#define DQSTRIM 0 +#define DQSCODE 0ul + +#define CLKTRIM 0 +#define CLKCODE 0ul +#endif + +static inline void calibration_legacy(void) +{ + u32 temp; + + /* 1. Set DDR mode to DDR3/DDR2/LPDDR in DMCx_PHY_CTL4 register */ + if (dmc.ddr_mode == DDR3_MODE) + writel(ENUM_DMC_PHY_CTL4_DDR3, dmc.reg + REG_DMC_PHY_CTL4); + else if (dmc.ddr_mode == DDR2_MODE) + writel(ENUM_DMC_PHY_CTL4_DDR2, dmc.reg + REG_DMC_PHY_CTL4); + else if (dmc.ddr_mode == LPDDR_MODE) + writel(ENUM_DMC_PHY_CTL4_LPDDR, dmc.reg + REG_DMC_PHY_CTL4); + + /* + * 2. Make sure that the bits 6, 7, 25, and 27 of the DMC_PHY_ + * CTL3 register are set + */ + writel(0x0A0000C0, dmc.reg + REG_DMC_PHY_CTL3); + + /* + * 3. For DDR2/DDR3 mode, make sure that the bits 0, 1, 2, 3 of + * the DMC_PHY_CTL0 register and the bits 26, 27, 28, 29, 30, 31 + * of the DMC_PHY_CTL2 are set. + */ + if (dmc.ddr_mode == DDR3_MODE || + dmc.ddr_mode == DDR2_MODE) { + writel(0XFC000000, dmc.reg + REG_DMC_PHY_CTL2); + writel(0x0000000f, dmc.reg + REG_DMC_PHY_CTL0); + } + + writel(0x00000000, dmc.reg + REG_DMC_PHY_CTL1); + + /* 4. For DDR3 mode, set bit 1 and configure bits [5:2] of the + * DMC_CPHY_CTL register with WL=CWL+AL in DCLK cycles. + */ + if (dmc.ddr_mode == DDR3_MODE) + writel(dmc.dmc_cphyctl_value, dmc.reg + REG_DMC_CPHY_CTL); + /* 5. Perform On Die Termination(ODT) & Driver Impedance Calibration */ + if (dmc.ddr_mode == LPDDR_MODE) { + /* Bypass processor ODT */ + writel(0x80000, dmc.reg + REG_DMC_PHY_CTL1); + } else { + /* Set bits RTTCALEN, PDCALEN, PUCALEN of register */ + temp = BITM_DMC_CAL_PADCTL0_RTTCALEN | + BITM_DMC_CAL_PADCTL0_PDCALEN | + BITM_DMC_CAL_PADCTL0_PUCALEN; + writel(temp, dmc.reg + REG_DMC_CAL_PADCTL0); + /* Configure ODT and drive impedance values in the + * DMCx_CAL_PADCTL2 register + */ + writel(dmc.padctl2_value, dmc.reg + REG_DMC_CAL_PADCTL2); + /* start calibration */ + temp |= BITM_DMC_CAL_PADCTL0_CALSTRT; + writel(temp, dmc.reg + REG_DMC_CAL_PADCTL0); + /* Wait for PAD calibration to complete - 300 DCLK cycle. + * Worst case: CCLK=450 MHz, DCLK=125 MHz + */ + dmcdelay(300); + } +} + +static inline void calibration_method1(void) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + writel(dmc.dmc_zqctl0_value, dmc.reg + REG_DMC_DDR_ZQ_CTL0); + writel(dmc.dmc_zqctl1_value, dmc.reg + REG_DMC_DDR_ZQ_CTL1); + writel(dmc.dmc_zqctl2_value, dmc.reg + REG_DMC_DDR_ZQ_CTL2); + + /* Generate the trigger */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x00010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(8000u); + + /* The [31:26] bits may change if pad ring changes */ + writel(0x0C000001ul | DMC_TRIG_CALIB, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(8000u); + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); +#endif +} + +static inline void calibration_method2(void) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + u32 stat_value = 0x0u; + u32 drv_pu, drv_pd, odt_pu, odt_pd; + u32 ro_dt, clk_dqs_drv_impedance; + u32 temp; + + /* Reset trigger */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + + /* Writing internal registers in calib pad to zero. Calib mode set + * to 1 [26], trig M1 S1 write [16], this enables usage of scratch + * registers instead of ZQCTL registers + */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + /* TRIGGER FOR M2-S2 WRITE -> slave id 31:26 trig m2,s2 write + * bit 1->1 slave1 address is 4 + */ + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + /* reset Trigger */ + writel(0x0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + + /* write to slave 1, make the power down bit high */ + writel(0x1ul << 12, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + dmcdelay(2500u); + + /* Calib mode set to 1 [26], trig M1 S1 write [16] */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0, dmc.reg + REG_DMC_DDR_SCRATCH_3); + + /* for slave 0 */ + writel(dmc.dmc_zqctl0_value, dmc.reg + REG_DMC_DDR_SCRATCH_2); + + /* Calib mode set to 1 [26], trig M1 S1 write [16] */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + writel(0x0C000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + + /* writing to slave 1 + * calstrt is 0, but other programming is done + * + * make power down LOW again, to kickstart BIAS circuit + */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x30000000ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + + /* write to ca_ctl lane, calib mode set to 1 [26], + * trig M1 S1 write [16] + */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + /* copies data to lane controller slave + * TRIGGER FOR M2-S2 WRITE -> slave id 31:26 + * trig m2,s2 write bit 1->1 + * slave1 address is 4 + */ + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + /* reset Trigger */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x50000000ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0C000004u, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(BITM_DMC_DDR_ROOT_CTL_TRIG_RD_XFER_ALL, + dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + // calculate ODT PU and PD values + stat_value = ((readl(dmc.reg + REG_DMC_DDR_SCRATCH_7) & 0x0000FFFFu) << + 16); + stat_value |= ((readl(dmc.reg + REG_DMC_DDR_SCRATCH_6) & 0xFFFF0000u) >> + 16); + clk_dqs_drv_impedance = ((dmc.dmc_zqctl0_value) & + BITM_DMC_DDR_ZQ_CTL0_IMPWRDQ) >> BITP_DMC_DDR_ZQ_CTL0_IMPWRDQ; + ro_dt = ((dmc.dmc_zqctl0_value) & BITM_DMC_DDR_ZQ_CTL0_IMPRTT) >> + BITP_DMC_DDR_ZQ_CTL0_IMPRTT; + drv_pu = stat_value & 0x0000003Fu; + drv_pd = (stat_value >> 12) & 0x0000003Fu; + odt_pu = (drv_pu * clk_dqs_drv_impedance) / ro_dt; + odt_pd = (drv_pd * clk_dqs_drv_impedance) / ro_dt; + temp = ((1uL << 24) | + ((drv_pd & 0x0000003Fu)) | + ((odt_pd & 0x0000003Fu) << 6) | + ((drv_pu & 0x0000003Fu) << 12) | + ((odt_pu & 0x0000003Fu) << 18)); + temp |= readl(dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(temp, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x0C010000u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x08000002u, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x04010000u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x80000002u, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); +#endif +} + +static inline void adi_dmc_lane_reset(bool reset, uint32_t dmc_no) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + u32 temp; + phys_addr_t base = (dmc_no == 0) ? REG_DMC0_BASE : REG_DMC1_BASE; + phys_addr_t ln0 = base + REG_DMC_DDR_LANE0_CTL0; + phys_addr_t ln1 = base + REG_DMC_DDR_LANE1_CTL0; + + if (reset) { + temp = readl(ln0); + temp |= BITM_DMC_DDR_LANE0_CTL0_CB_RSTDLL; + writel(temp, ln0); + + temp = readl(ln1); + temp |= BITM_DMC_DDR_LANE1_CTL0_CB_RSTDLL; + writel(temp, ln1); + } else { + temp = readl(ln0); + temp &= ~BITM_DMC_DDR_LANE0_CTL0_CB_RSTDLL; + writel(temp, ln0); + + temp = readl(ln1); + temp &= ~BITM_DMC_DDR_LANE1_CTL0_CB_RSTDLL; + writel(temp, ln1); + } + dmcdelay(9000u); +#endif +} + +void adi_dmc_reset_lanes(bool reset) +{ + if (!IS_ENABLED(CONFIG_ADI_USE_DDR2)) { + if (IS_ENABLED(CONFIG_SC59X) || IS_ENABLED(CONFIG_SC59X_64)) { + if (IS_ENABLED(CONFIG_ADI_USE_DMC0)) + adi_dmc_lane_reset(reset, 0); + if (IS_ENABLED(CONFIG_ADI_USE_DMC1)) + adi_dmc_lane_reset(reset, 1); + } + else { + u32 temp = reset ? 0x800 : 0x0; + + if (IS_ENABLED(CONFIG_ADI_USE_DMC0)) + writel(temp, REG_DMC0_BASE + REG_DMC_PHY_CTL0); + if (IS_ENABLED(CONFIG_ADI_USE_DMC1)) + writel(temp, REG_DMC1_BASE + REG_DMC_PHY_CTL0); + } + } +} + +static inline void dmc_controller_init(void) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + u32 phyphase, rd_cnt, t_EMR1, t_EMR3, t_CTL, data_cyc, temp; +#endif + + /* 1. Program the DMC controller registers: DMCx_CFG, DMCx_TR0, + * DMCx_TR1, DMCx_TR2, DMCx_MR(DDR2/LPDDR)/DMCx_MR0(DDR3), + * DMCx_EMR1(DDR2)/DMCx_MR1(DDR3), + * DMCx_EMR2(DDR2)/DMCx_EMR(LPDDR)/DMCx_MR2(DDR3) + */ + writel(dmc.dmc_cfg_value, dmc.reg + REG_DMC_CFG); + writel(dmc.dmc_tr0_value, dmc.reg + REG_DMC_TR0); + writel(dmc.dmc_tr1_value, dmc.reg + REG_DMC_TR1); + writel(dmc.dmc_tr2_value, dmc.reg + REG_DMC_TR2); + writel(dmc.dmc_mr0_value, dmc.reg + REG_DMC_MR); + writel(dmc.dmc_mr1_value, dmc.reg + REG_DMC_EMR1); + writel(dmc.dmc_mr2_value, dmc.reg + REG_DMC_EMR2); + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + writel(dmc.dmc_mr3_value, dmc.reg + REG_DMC_EMR3); + writel(dmc.dmc_dllctl_value, dmc.reg + REG_DMC_DLLCTL); + dmcdelay(2000u); + + temp = readl(dmc.reg + REG_DMC_DDR_CA_CTL); + temp |= BITM_DMC_DDR_CA_CTL_SW_REFRESH; + writel(temp, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(5u); + + temp = readl(dmc.reg + REG_DMC_DDR_ROOT_CTL); + temp |= BITM_DMC_DDR_ROOT_CTL_SW_REFRESH | + (DMC_OFSTDCYCLE << BITP_DMC_DDR_ROOT_CTL_PIPE_OFSTDCYCLE); + writel(temp, dmc.reg + REG_DMC_DDR_ROOT_CTL); +#endif + + /* 2. Make sure that the REG_DMC_DT_CALIB_ADDR register is programmed + * to an unused DMC location corresponding to a burst of 16 bytes + * (by default it is the starting address of the DMC address range). + */ +#ifndef CONFIG_SC59X + writel(dmc.dmc_data_calib_add_value, dmc.reg + REG_DMC_DT_CALIB_ADDR); +#endif + /* 3. Program the DMCx_CTL register with INIT bit set to start + * the DMC initialization sequence + */ + writel(dmc.dmc_ctl_value, dmc.reg + REG_DMC_CTL); + /* 4. Wait for the DMC initialization to complete by polling + * DMCx_STAT.INITDONE bit. + */ + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + dmcdelay(722000u); + + /* Add necessary delay depending on the configuration */ + t_EMR1 = (dmc.dmc_mr1_value & BITM_DMC_MR1_WL) >> BITP_DMC_MR1_WL; + + dmcdelay(600u); + if (t_EMR1 != 0u) + while ((readl(dmc.reg + REG_DMC_EMR1) & BITM_DMC_MR1_WL) != 0) + ; + + t_EMR3 = (dmc.dmc_mr3_value & BITM_DMC_EMR3_MPR) >> + BITP_DMC_EMR3_MPR; + dmcdelay(2000u); + if (t_EMR3 != 0u) + while ((readl(dmc.reg + REG_DMC_EMR3) & BITM_DMC_EMR3_MPR) != 0) + ; + + t_CTL = (dmc.dmc_ctl_value & BITM_DMC_CTL_RL_DQS) >> BITP_DMC_CTL_RL_DQS; + dmcdelay(600u); + if (t_CTL != 0u) + while ((readl(dmc.reg + REG_DMC_CTL) & BITM_DMC_CTL_RL_DQS) != 0) + ; +#endif + + /* check if DMC initialization finished*/ + while ((readl(dmc.reg + REG_DMC_STAT) & BITM_DMC_STAT_INITDONE) == 0) + ; + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + /* toggle DCYCLE */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp |= BITM_DMC_DDR_LANE0_CTL1_COMP_DCYCLE; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp |= BITM_DMC_DDR_LANE1_CTL1_COMP_DCYCLE; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + + dmcdelay(10u); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp &= (~BITM_DMC_DDR_LANE0_CTL1_COMP_DCYCLE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp &= (~BITM_DMC_DDR_LANE1_CTL1_COMP_DCYCLE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + + /* toggle RSTDAT */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL0); + temp |= BITM_DMC_DDR_LANE0_CTL0_CB_RSTDAT; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL0); + temp &= (~BITM_DMC_DDR_LANE0_CTL0_CB_RSTDAT); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL0); + temp |= BITM_DMC_DDR_LANE1_CTL0_CB_RSTDAT; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL0); + temp &= (~BITM_DMC_DDR_LANE1_CTL0_CB_RSTDAT); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL0); + + dmcdelay(2500u); + + /* Program phyphase*/ + phyphase = (readl(dmc.reg + REG_DMC_STAT) & + BITM_DMC_STAT_PHYRDPHASE) >> BITP_DMC_STAT_PHYRDPHASE; + data_cyc = (phyphase << BITP_DMC_DLLCTL_DATACYC) & + BITM_DMC_DLLCTL_DATACYC; + rd_cnt = dmc.dmc_dllctl_value; + rd_cnt <<= BITP_DMC_DLLCTL_DLLCALRDCNT; + rd_cnt &= BITM_DMC_DLLCTL_DLLCALRDCNT; + writel(rd_cnt | data_cyc, dmc.reg + REG_DMC_DLLCTL); + writel((dmc.dmc_ctl_value & (~BITM_DMC_CTL_INIT) & + (~BITM_DMC_CTL_RL_DQS)), dmc.reg + REG_DMC_CTL); + +#if DELAYTRIM + /* DQS delay trim*/ + u32 stat_value, WL_code_LDQS, WL_code_UDQS; + + /* For LDQS */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1) | (0x000000D0); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + dmcdelay(2500u); + writel(0x00400000, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x0, dmc.reg + REG_DMC_DDR_ROOT_CTL); + stat_value = (readl(dmc.reg + REG_DMC_DDR_SCRATCH_STAT0) & + (0xFFFF0000)) >> 16; + WL_code_LDQS = (stat_value) & (0x0000001F); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp &= ~(BITM_DMC_DDR_LANE0_CTL1_BYPCODE | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + + /* If write leveling is enabled */ + if ((dmc.dmc_mr1_value & BITM_DMC_MR1_WL) >> BITP_DMC_MR1_WL) { + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp |= (((WL_code_LDQS + LANE0_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + } else { + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp |= (((DQS_DEFAULT_DELAY + LANE0_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + } + dmcdelay(2500u); + + /* For UDQS */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1) | (0x000000D0); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + dmcdelay(2500u); + writel(0x00800000, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x0, dmc.reg + REG_DMC_DDR_ROOT_CTL); + stat_value = (readl(dmc.reg + REG_DMC_DDR_SCRATCH_STAT1) & + (0xFFFF0000)) >> 16; + WL_code_UDQS = (stat_value) & (0x0000001F); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp &= ~(BITM_DMC_DDR_LANE0_CTL1_BYPCODE | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + + /* If write leveling is enabled */ + if ((dmc.dmc_mr1_value & BITM_DMC_MR1_WL) >> BITP_DMC_MR1_WL) { + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp |= (((WL_code_UDQS + LANE1_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + } else { + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp |= (((DQS_DEFAULT_DELAY + LANE1_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + } + dmcdelay(2500u); +#endif + +#else + /* 5. Program the DMCx_CTL.DLLCTL register with 0x948 value + * (DATACYC=9, DLLCALRDCNT=72). + */ + writel(0x00000948, dmc.reg + REG_DMC_DLLCTL); +#endif + + /* 6. Workaround for anomaly#20000037 */ + if (dmc.anomaly_20000037_applicable) { + /* Perform dummy read to any DMC location */ + readl(0x80000000); + + writel(readl(dmc.reg + REG_DMC_PHY_CTL0) | 0x1000, + dmc.reg + REG_DMC_PHY_CTL0); + /* Clear DMCx_PHY_CTL0.RESETDAT bit */ + writel(readl(dmc.reg + REG_DMC_PHY_CTL0) & (~0x1000), + dmc.reg + REG_DMC_PHY_CTL0); + } +} + +static inline void dmc_init(void) +{ + /* PHY Calibration+Initialization */ + if (!dmc.phy_init_required) + goto out; + + switch (dmc.calib_mode) { + case CALIBRATION_LEGACY: + calibration_legacy(); + break; + case CALIBRATION_METHOD1: + calibration_method1(); + break; + case CALIBRATION_METHOD2: + calibration_method2(); + break; + } + +#if DQSTRIM + /* DQS duty trim */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL0); + temp |= ((DQSCODE) << BITP_DMC_DDR_LANE0_CTL0_BYPENB) & + (BITM_DMC_DDR_LANE1_CTL0_BYPENB | + BITM_DMC_DDR_LANE0_CTL0_BYPSELP | + BITM_DMC_DDR_LANE0_CTL0_BYPCODE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL0); + temp |= ((DQSCODE) << BITP_DMC_DDR_LANE1_CTL0_BYPENB) & + (BITM_DMC_DDR_LANE1_CTL1_BYPCODE | + BITM_DMC_DDR_LANE1_CTL0_BYPSELP | + BITM_DMC_DDR_LANE1_CTL0_BYPCODE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL0); +#endif + +#if CLKTRIM + /* Clock duty trim */ + temp = readl(dmc.reg + REG_DMC_DDR_CA_CTL); + temp |= (((CLKCODE << BITP_DMC_DDR_CA_CTL_BYPCODE1) & + BITM_DMC_DDR_CA_CTL_BYPCODE1) | + BITM_DMC_DDR_CA_CTL_BYPENB | + ((CLKDIR << BITP_DMC_DDR_CA_CTL_BYPSELP) & + BITM_DMC_DDR_CA_CTL_BYPSELP)); + writel(temp, dmc.reg + REG_DMC_DDR_CA_CTL); +#endif + +out: + /* Controller Initialization */ + dmc_controller_init(); +} + +static inline void __dmc_config(uint32_t dmc_no) +{ + if (dmc_no == 0) { + dmc.reg = REG_DMC0_BASE; + dmc.dmc_data_calib_add_value = DMC0_DATA_CALIB_ADD; + } else if (dmc_no == 1) { + dmc.reg = REG_DMC1_BASE; + dmc.dmc_data_calib_add_value = DMC1_DATA_CALIB_ADD; + } else { + return; + } + + if (IS_ENABLED(CONFIG_ADI_USE_DDR2)) + dmc.ddr_mode = DDR2_MODE; + else + dmc.ddr_mode = DDR3_MODE; + + dmc.phy_init_required = true; + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + dmc.anomaly_20000037_applicable = false; + dmc.dmc_dllctl_value = DMC_DLLCTL_VALUE; + dmc.calib_mode = CALIBRATION_METHOD2; +#else + dmc.anomaly_20000037_applicable = true; + dmc.calib_mode = CALIBRATION_LEGACY; +#endif + + dmc.dmc_ctl_value = DMC_CTL_VALUE; + dmc.dmc_cfg_value = DMC_CFG_VALUE; + dmc.dmc_tr0_value = DMC_TR0_VALUE; + dmc.dmc_tr1_value = DMC_TR1_VALUE; + dmc.dmc_tr2_value = DMC_TR2_VALUE; + dmc.dmc_mr0_value = DMC_MR0_VALUE; + dmc.dmc_mr1_value = DMC_MR1_VALUE; + dmc.dmc_mr2_value = DMC_MR2_VALUE; + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + dmc.dmc_mr3_value = DMC_MR3_VALUE; + dmc.dmc_zqctl0_value = DMC_ZQCTL0_VALUE; + dmc.dmc_zqctl1_value = DMC_ZQCTL1_VALUE; + dmc.dmc_zqctl2_value = DMC_ZQCTL2_VALUE; +#endif + + dmc.padctl2_value = DMC_PADCTL2_VALUE; + dmc.dmc_cphyctl_value = DMC_CPHYCTL_VALUE; + + /* Initialize DMC now */ + dmc_init(); +} + +void DMC_Config(void) +{ + if (IS_ENABLED(CONFIG_ADI_USE_DMC0)) + __dmc_config(0); + + if (IS_ENABLED(CONFIG_ADI_USE_DMC1)) + __dmc_config(1); +} diff --git a/arch/arm/mach-sc5xx/init/dmcinit.h b/arch/arm/mach-sc5xx/init/dmcinit.h new file mode 100644 index 0000000000..46ff729282 --- /dev/null +++ b/arch/arm/mach-sc5xx/init/dmcinit.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#ifndef DMCINIT_H_ +#define DMCINIT_H_ + +#include <config.h> + +#ifdef MEM_MT41K512M16HA + #include "mem/mt41k512m16ha.h" +#elif defined(MEM_MT41K128M16JT) + #include "mem/mt41k128m16jt.h" +#elif defined(MEM_MT47H128M16RT) + #include "mem/mt47h128m16rt.h" +#elif defined(MEM_IS43TR16512BL) + #include "mem/is43tr16512bl.h" +#else + #error "No DDR part name is defined for this board." +#endif + +void DMC_Config(void); +void adi_dmc_reset_lanes(bool reset); + +#endif diff --git a/arch/arm/mach-sc5xx/init/mem/is43tr16512bl.h b/arch/arm/mach-sc5xx/init/mem/is43tr16512bl.h new file mode 100644 index 0000000000..a583837055 --- /dev/null +++ b/arch/arm/mach-sc5xx/init/mem/is43tr16512bl.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#ifndef IS43TR16512BL_H +#define IS43TR16512BL_H + +/* DMC0 setup for the EV-21593-SOM and EV-SC594-SOM : + * - uses a single 8GB IS43TR16512BL-125KBL DDR3 chip configured for + * 800 MHz DCLK. + * DMC0 setup for the EV-SC594-SOMS : + * - uses a single 4GB IS43TR16256BL-093NBL DDR3 chip configured for + * 800 MHz DCLK. + */ +#define DMC_DLLCALRDCNT 240 +#define DMC_DATACYC 12 +#define DMC_TRCD 11 +#define DMC_TWTR 6 +#define DMC_TRP 11 +#define DMC_TRAS 28 +#define DMC_TRC 39 +#define DMC_TMRD 4 +#define DMC_TREF 6240 +#define DMC_TRRD 6 +#define DMC_TFAW 32 +#define DMC_TRTP 6 +#define DMC_TWR 12 +#define DMC_TXP 5 +#define DMC_TCKE 4 +#define DMC_CL0 0 +#define DMC_CL123 7 +#define DMC_WRRECOV 6 +#define DMC_MR1_DLLEN 0 +#define DMC_MR1_DIC0 0 +#define DMC_MR1_RTT0 0 +#define DMC_MR1_AL 0 +#define DMC_MR1_DIC1 0 +#define DMC_MR1_RTT1 1 +#define DMC_MR1_WL 0 +#define DMC_MR1_RTT2 0 +#define DMC_MR1_TDQS 0 +#define DMC_MR1_QOFF 0 +#define DMC_WL 3 +#define DMC_RDTOWR 5 +#define DMC_CTL_AL_EN 1 +#if defined(MEM_ISSI_4Gb_DDR3_800MHZ) + #define SDR_CHIP_SIZE (ENUM_DMC_CFG_SDRSIZE4G) + #define DMC_TRFC 208ul +#elif defined(MEM_ISSI_8Gb_DDR3_800MHZ) + #define SDR_CHIP_SIZE (ENUM_DMC_CFG_SDRSIZE8G) + #define DMC_TRFC 280ul +#else + #error "Need to select MEM_ISSI_4Gb_DDR3_800MHZ or MEM_ISSI_8Gb_DDR3_800MHZ" +#endif + +#endif diff --git a/arch/arm/mach-sc5xx/init/mem/mt41k128m16jt.h b/arch/arm/mach-sc5xx/init/mem/mt41k128m16jt.h new file mode 100644 index 0000000000..882777521b --- /dev/null +++ b/arch/arm/mach-sc5xx/init/mem/mt41k128m16jt.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#ifndef MT41K128M16JT_H +#define MT41K128M16JT_H + +/* Default DDR3 part assumed: MT41K128M16JT-125, 2Gb part */ +/* For DCLK= 450 MHz */ +#define DMC_DLLCALRDCNT 72 +#define DMC_DATACYC 9 +#define DMC_TRCD 6 +#define DMC_TWTR 4 +#define DMC_TRP 6 +#define DMC_TRAS 17 +#define DMC_TRC 23 +#define DMC_TMRD 4 +#define DMC_TREF 3510 +#define DMC_TRFC 72 +#define DMC_TRRD 4 +#define DMC_TFAW 17 +#define DMC_TRTP 4 +#define DMC_TWR 7 +#define DMC_TXP 4 +#define DMC_TCKE 3 +#define DMC_CL0 0 +#define DMC_CL123 3 +#define DMC_WRRECOV (DMC_TWR - 1) +#define DMC_MR1_DLLEN 0 +#define DMC_MR1_DIC0 1 +#define DMC_MR1_RTT0 1 +#define DMC_MR1_AL 0 +#define DMC_MR1_DIC1 0 +#define DMC_MR1_RTT1 0 +#define DMC_MR1_WL 0 +#define DMC_MR1_RTT2 0 +#define DMC_MR1_TDQS 0 +#define DMC_MR1_QOFF 0 +#define DMC_WL 1 +#define DMC_RDTOWR 2 +#define DMC_CTL_AL_EN 0 +#define SDR_CHIP_SIZE ENUM_DMC_CFG_SDRSIZE2G + +#endif diff --git a/arch/arm/mach-sc5xx/init/mem/mt41k512m16ha.h b/arch/arm/mach-sc5xx/init/mem/mt41k512m16ha.h new file mode 100644 index 0000000000..5735b87871 --- /dev/null +++ b/arch/arm/mach-sc5xx/init/mem/mt41k512m16ha.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#ifndef MT41K512M16HA_H +#define MT41K512M16HA_H + +/* Default DDR3 part assumed: MT41K512M16HA-107, 8Gb part */ +/* For DCLK= 450 MHz */ +#define DMC_DLLCALRDCNT 72 +#define DMC_DATACYC 9 +#define DMC_TRCD 7 +#define DMC_TWTR 4 +#define DMC_TRP 7 +#define DMC_TRAS 10 +#define DMC_TRC 16 +#define DMC_TMRD 4 +#define DMC_TREF 3510 +#define DMC_TRFC 158 +#define DMC_TRRD 6 +#define DMC_TFAW 16 +#define DMC_TRTP 4 +#define DMC_TWR 7 +#define DMC_TXP 3 +#define DMC_TCKE 3 +#define DMC_CL0 0 +#define DMC_CL123 3 +#define DMC_WRRECOV (DMC_TWR - 1) +#define DMC_MR1_DLLEN 0 +#define DMC_MR1_DIC0 1 +#define DMC_MR1_RTT0 1 +#define DMC_MR1_AL 0 +#define DMC_MR1_DIC1 0 +#define DMC_MR1_RTT1 0 +#define DMC_MR1_WL 0 +#define DMC_MR1_RTT2 0 +#define DMC_MR1_TDQS 0 +#define DMC_MR1_QOFF 0 +#define DMC_WL 1 +#define DMC_RDTOWR 2 +#define DMC_CTL_AL_EN 0 +#define SDR_CHIP_SIZE ENUM_DMC_CFG_SDRSIZE8G + +#endif diff --git a/arch/arm/mach-sc5xx/init/mem/mt47h128m16rt.h b/arch/arm/mach-sc5xx/init/mem/mt47h128m16rt.h new file mode 100644 index 0000000000..5ada7f2985 --- /dev/null +++ b/arch/arm/mach-sc5xx/init/mem/mt47h128m16rt.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#ifndef MT47H128M16RT_H +#define MT47H128M16RT_H + +/* Default DDR2 part: MT47H128M16RT-25E XIT:C, 2 Gb part */ +/* For DCLK= 400 MHz */ +#define DMC_DLLCALRDCNT 72 +#define DMC_DATACYC 9 +#define DMC_TRCD 5 +#define DMC_TWTR 3 +#define DMC_TRP 5 +#define DMC_TRAS 16 +#define DMC_TRC 22 +#define DMC_TMRD 2 +#define DMC_TREF 3120 +#define DMC_TRFC 78 +#define DMC_TRRD 4 +#define DMC_TFAW 18 +#define DMC_TRTP 3 +#define DMC_TWR 6 +#define DMC_TXP 2 +#define DMC_TCKE 3 +#define DMC_CL 5 +#define DMC_WRRECOV (DMC_TWR - 1) +#define DMC_MR1_DLLEN 0 +#define DMC_MR1_DIC0 1 +#define DMC_MR1_RTT0 1 +#define DMC_MR1_AL 4 +#define DMC_MR1_DIC1 0 +#define DMC_MR1_RTT1 0 +#define DMC_MR1_WL 0 +#define DMC_MR1_RTT2 0 +#define DMC_MR1_TDQS 0 +#define DMC_MR1_QOFF 0 +#define DMC_BL 4 +#define DMC_RDTOWR 2 +#define DMC_CTL_AL_EN 0 +#define SDR_CHIP_SIZE ENUM_DMC_CFG_SDRSIZE2G + +#endif diff --git a/arch/arm/mach-sc5xx/rcu.c b/arch/arm/mach-sc5xx/rcu.c new file mode 100644 index 0000000000..49357501a9 --- /dev/null +++ b/arch/arm/mach-sc5xx/rcu.c @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2024 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Ian Roberts ian.roberts@timesys.com + */ + +#include <dm.h> +#include <syscon.h> + +static const struct udevice_id adi_syscon_ids[] = { + { .compatible = "adi,reset-controller" }, + { } +}; + +U_BOOT_DRIVER(syscon_sc5xx_rcu) = { + .name = "sc5xx_rcu", + .id = UCLASS_SYSCON, + .of_match = adi_syscon_ids, +}; diff --git a/arch/arm/mach-sc5xx/sc57x.c b/arch/arm/mach-sc5xx/sc57x.c new file mode 100644 index 0000000000..b0587686d7 --- /dev/null +++ b/arch/arm/mach-sc5xx/sc57x.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2024 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <asm/io.h> +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/arch-adi/sc5xx/spl.h> + +#define REG_SPU0_SECUREC0 0x3108B980 +#define REG_PADS0_PCFG0 0x31004404 +#define REG_SPU0_SECUREP_START 0x3108BA00 +#define REG_SPU0_SECUREP_END 0x3108BD24 + +adi_rom_boot_fn adi_rom_boot = (adi_rom_boot_fn)0x000000e1; + +void sc5xx_enable_rgmii(void) +{ + writel((readl(REG_PADS0_PCFG0) | 0xc), REG_PADS0_PCFG0); +} + +void sc5xx_soc_init(void) +{ + sc5xx_enable_ns_sharc_access(REG_SPU0_SECUREC0); + sc5xx_disable_spu0(REG_SPU0_SECUREP_START, REG_SPU0_SECUREP_END); + sc5xx_enable_pmu(); +} diff --git a/arch/arm/mach-sc5xx/sc58x.c b/arch/arm/mach-sc5xx/sc58x.c new file mode 100644 index 0000000000..0f89277430 --- /dev/null +++ b/arch/arm/mach-sc5xx/sc58x.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2024 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <asm/io.h> +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/arch-adi/sc5xx/spl.h> + +#define REG_SPU0_SECUREC0 0x3108C980 +#define REG_PADS0_PCFG0 0x31004404 +#define REG_SPU0_SECUREP_START 0x3108CA00 +#define REG_SPU0_SECUREP_END 0x3108CCF0 + +adi_rom_boot_fn adi_rom_boot = (adi_rom_boot_fn)0x000000e1; + +void sc5xx_enable_rgmii(void) +{ + writel((readl(REG_PADS0_PCFG0) | 0xc), REG_PADS0_PCFG0); +} + +void sc5xx_soc_init(void) +{ + sc5xx_enable_ns_sharc_access(REG_SPU0_SECUREC0); + sc5xx_disable_spu0(REG_SPU0_SECUREP_START, REG_SPU0_SECUREP_END); + sc5xx_enable_pmu(); +} diff --git a/arch/arm/mach-sc5xx/sc59x.c b/arch/arm/mach-sc5xx/sc59x.c new file mode 100644 index 0000000000..174c6f5c44 --- /dev/null +++ b/arch/arm/mach-sc5xx/sc59x.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2024 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <asm/io.h> +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/arch-adi/sc5xx/spl.h> + +#define REG_SPU0_SECUREC0 0x3108B980 +#define REG_PADS0_PCFG0 0x31004604 +#define REG_SPU0_SECUREP_START 0x3108BA00 +#define REG_SPU0_SECUREP_END 0x3108BD24 + +#define REG_SCB5_SPI2_OSPI_REMAP 0x30400000 +#define BITM_SCB5_SPI2_OSPI_REMAP_REMAP 0x00000003 +#define ENUM_SCB5_SPI2_OSPI_REMAP_OSPI0 0x00000001 + +adi_rom_boot_fn adi_rom_boot = (adi_rom_boot_fn)0x000000e9; + +void sc5xx_enable_rgmii(void) +{ + writel((readl(REG_PADS0_PCFG0) | 0xc), REG_PADS0_PCFG0); +} + +void sc59x_remap_ospi(void) +{ + clrsetbits_le32(REG_SCB5_SPI2_OSPI_REMAP, + BITM_SCB5_SPI2_OSPI_REMAP_REMAP, + ENUM_SCB5_SPI2_OSPI_REMAP_OSPI0); +} + +void sc5xx_soc_init(void) +{ + sc5xx_enable_ns_sharc_access(REG_SPU0_SECUREC0); + sc5xx_disable_spu0(REG_SPU0_SECUREP_START, REG_SPU0_SECUREP_END); + sc5xx_enable_pmu(); +} diff --git a/arch/arm/mach-sc5xx/sc59x_64.c b/arch/arm/mach-sc5xx/sc59x_64.c new file mode 100644 index 0000000000..82537bf196 --- /dev/null +++ b/arch/arm/mach-sc5xx/sc59x_64.c @@ -0,0 +1,97 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2024 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <asm/io.h> +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/arch-adi/sc5xx/spl.h> + +#define REG_TSGENWR0_CNTCR 0x310AE000 +#define REG_PADS0_PCFG0 0x31004604 +#define REG_RCU0_BCODE 0x3108C028 + +#define REG_SPU0_SECUREP_START 0x3108BA00 +#define REG_SPU0_WP_START 0x3108B400 +#define REG_SPU0_SECUREC0 0x3108B980 + +#define REG_SCB5_SPI2_OSPI_REMAP 0x30400000 +#define BITM_SCB5_SPI2_OSPI_REMAP_REMAP 0x00000003 +#define ENUM_SCB5_SPI2_OSPI_REMAP_OSPI0 0x00000001 + +adi_rom_boot_fn adi_rom_boot = (adi_rom_boot_fn)0x000000e4; + +void sc5xx_enable_rgmii(void) +{ + writel((readl(REG_PADS0_PCFG0) | 0xc), REG_PADS0_PCFG0); + + // Set dw for little endian operation as well + writel(readl(REG_PADS0_PCFG0) & ~(1 << 19), REG_PADS0_PCFG0); + writel(readl(REG_PADS0_PCFG0) & ~(1 << 20), REG_PADS0_PCFG0); +} + +void sc59x_remap_ospi(void) +{ + clrsetbits_le32(REG_SCB5_SPI2_OSPI_REMAP, + BITM_SCB5_SPI2_OSPI_REMAP_REMAP, + ENUM_SCB5_SPI2_OSPI_REMAP_OSPI0); +} + +/** + * SPU/SMPU configuration is the default for permissive access from non-secure + * EL1. If TFA and OPTEE are configured, they run *after* this code, as the + * current boot flow is SPL -> TFA -> OPTEE -> Proper -> Linux, and will + * be expected to configure peripheral security correctly. If they are not + * configured, then this permissive setting will allow Linux (which always + * runs in NS EL1) to control all access to these peripherals. Without it, + * the peripherals would simply be unavailable in a non-security build, + * which is not OK. + */ +void sc5xx_soc_init(void) +{ + phys_addr_t smpus[] = { + 0x31007800, //SMPU0 + 0x31083800, //SMPU2 + 0x31084800, //SMPU3 + 0x31085800, //SMPU4 + 0x31086800, //SMPU5 + 0x31087800, //SMPU6 + 0x310A0800, //SMPU9 + 0x310A1800, //SMPU11 + 0x31012800, //SMPU12 + }; + size_t i; + + // Enable coresight timer + writel(1, REG_TSGENWR0_CNTCR); + + //Do not rerun preboot routine -- + // Without this, hardware resets triggered by RCU0_CTL:SYSRST + // lead to a deadlock somewhere in the boot ROM + writel(0x200, REG_RCU0_BCODE); + + /* Alter outstanding transactions property of A55*/ + writel(0x1, 0x30643108); /* SCB6 A55 M0 Ib.fn Mod */ + isb(); + + /* configure DDR prefetch behavior, per ADI */ + writel(0x1, 0x31076000); + + /* configure smart mode, per ADI */ + writel(0x1307, 0x31076004); + + // Disable SPU and SPU WP registers + sc5xx_disable_spu0(REG_SPU0_SECUREP_START, REG_SPU0_SECUREP_START + 4*213); + sc5xx_disable_spu0(REG_SPU0_WP_START, REG_SPU0_WP_START + 4*213); + + /* configure smpus permissively */ + for (i = 0; i < ARRAY_SIZE(smpus); ++i) + writel(0x500, smpus[i]); + + sc5xx_enable_ns_sharc_access(REG_SPU0_SECUREC0); +} diff --git a/arch/arm/mach-sc5xx/soc.c b/arch/arm/mach-sc5xx/soc.c new file mode 100644 index 0000000000..8f13127a66 --- /dev/null +++ b/arch/arm/mach-sc5xx/soc.c @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/arch-adi/sc5xx/soc.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <cpu_func.h> + +#ifdef CONFIG_SC58X + #define RCU0_CTL 0x3108B000 + #define RCU0_STAT 0x3108B004 + #define RCU0_CRCTL 0x3108B008 + #define RCU0_CRSTAT 0x3108B00C + #define RCU0_SIDIS 0x3108B010 + #define RCU0_MSG_SET 0x3108B064 +#elif defined(CONFIG_SC57X) || defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + #define RCU0_CTL 0x3108C000 + #define RCU0_STAT 0x3108C004 + #define RCU0_CRCTL 0x3108C008 + #define RCU0_CRSTAT 0x3108C00C + #define RCU0_SIDIS 0x3108C01C + #define RCU0_MSG_SET 0x3108C070 +#else + #error "No SC5xx SoC CONFIG_ enabled" +#endif + +#define BITP_RCU_STAT_BMODE 8 +#define BITM_RCU_STAT_BMODE 0x00000F00 + +#define REG_ARMPMU0_PMCR 0x31121E04 +#define REG_ARMPMU0_PMUSERENR 0x31121E08 +#define REG_ARMPMU0_PMLAR 0x31121FB0 + +DECLARE_GLOBAL_DATA_PTR; + +void reset_cpu(void) +{ + u32 val = readl(RCU0_CTL); + writel(val | 1, RCU0_CTL); +} + +void enable_caches(void) +{ + if (!IS_ENABLED(CONFIG_SYS_DCACHE_OFF)) + dcache_enable(); +} + +void sc5xx_enable_ns_sharc_access(uintptr_t securec0_base) +{ + writel(0, securec0_base); + writel(0, securec0_base + 0x4); + writel(0, securec0_base + 0x8); +} + +void sc5xx_disable_spu0(uintptr_t spu0_start, uintptr_t spu0_end) +{ + for (uintptr_t i = spu0_start; i <= spu0_end; i += 4) + writel(0, i); +} + +/** + * PMU is only available on armv7 platforms and all share the same location + */ +void sc5xx_enable_pmu(void) +{ + if (!IS_ENABLED(CONFIG_SC59X_64)) { + writel(readl(REG_ARMPMU0_PMUSERENR) | 0x01, REG_ARMPMU0_PMUSERENR); + writel(0xc5acce55, REG_ARMPMU0_PMLAR); + writel(readl(REG_ARMPMU0_PMCR) | (1 << 1), REG_ARMPMU0_PMCR); + } +} + +const char *sc5xx_get_boot_mode(u32 *bmode) +{ + static const char * const bmodes[] = { + "JTAG/BOOTROM", + "QSPI Master", + "QSPI Slave", + "UART", + "LP0 Slave", + "OSPI", +#ifdef CONFIG_SC59X_64 + "eMMC" +#endif + }; + u32 local_mode; + + local_mode = (readl(RCU0_STAT) & BITM_RCU_STAT_BMODE) >> BITP_RCU_STAT_BMODE; + +#if CONFIG_ADI_SPL_FORCE_BMODE != 0 + /* + * In case we want to force boot sequences such as: + * QSPI -> OSPI + * QSPI -> eMMC + * If this is not set, then we will always try to use the BMODE setting + * for both stages... i.e. + * QSPI -> QSPI + */ + + // (Don't allow skipping JTAG/UART BMODE settings) + if (local_mode != 0 && local_mode != 3) + local_mode = CONFIG_ADI_SPL_FORCE_BMODE; +#endif + + *bmode = local_mode; + + if (local_mode >= 0 && local_mode <= ARRAY_SIZE(bmodes)) + return bmodes[local_mode]; + return "unknown"; +} + +void print_cpu_id(void) +{ + if (!IS_ENABLED(CONFIG_ARM64)) { + u32 cpuid = 0; + + __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0" : "=r"(cpuid)); + + printf("Detected Revision: %d.%d\n", cpuid & 0xf00000 >> 20, cpuid & 0xf); + } +} + +int print_cpuinfo(void) +{ + u32 bmode; + + printf("CPU: ADSP %s (%s boot)\n", CONFIG_LDR_CPU, sc5xx_get_boot_mode(&bmode)); + print_cpu_id(); + + return 0; +} + +void fixup_dp83867_phy(struct phy_device *phydev) +{ + int phy_data = 0; + + phy_data = phy_read(phydev, MDIO_DEVAD_NONE, 0x32); + phy_write(phydev, MDIO_DEVAD_NONE, 0x32, (1 << 7) | phy_data); + int cfg3 = 0; + #define MII_DP83867_CFG3 (0x1e) + /* + * Pin INT/PWDN on DP83867 should be configured as an Interrupt Output + * instead of a Power-Down Input on ADI SC5XX boards in order to + * prevent the signal interference from other peripherals during they + * are running at the same time. + */ + cfg3 = phy_read(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3); + cfg3 |= (1 << 7); + phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3, cfg3); + + // Mystery second port fixup on ezkits with two PHYs + if (CONFIG_DW_PORTS & 2) + phy_write(phydev, MDIO_DEVAD_NONE, 0x11, 3); + + if (IS_ENABLED(CONFIG_ADI_BUG_EZKHW21)) { + phydev->advertising &= PHY_BASIC_FEATURES; + phydev->speed = SPEED_100; + } + + if (phydev->drv->config) + phydev->drv->config(phydev); + + if (IS_ENABLED(CONFIG_ADI_BUG_EZKHW21)) + phy_write(phydev, MDIO_DEVAD_NONE, 0, 0x3100); +} + +int dram_init(void) +{ + gd->ram_size = CFG_SYS_SDRAM_SIZE; + return 0; +} diff --git a/arch/arm/mach-sc5xx/spl.c b/arch/arm/mach-sc5xx/spl.c new file mode 100644 index 0000000000..68e0310f5a --- /dev/null +++ b/arch/arm/mach-sc5xx/spl.c @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + */ + +#include <spl.h> +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/arch-adi/sc5xx/spl.h> +#include "init/clkinit.h" +#include "init/dmcinit.h" + +static bool adi_start_uboot_proper; + +static int adi_sf_default_bus = CONFIG_SF_DEFAULT_BUS; +static int adi_sf_default_cs = CONFIG_SF_DEFAULT_CS; +static int adi_sf_default_speed = CONFIG_SF_DEFAULT_SPEED; + +u32 bmode; + +int spl_start_uboot(void) +{ + return adi_start_uboot_proper; +} + +unsigned int spl_spi_get_default_speed(void) +{ + return adi_sf_default_speed; +} + +unsigned int spl_spi_get_default_bus(void) +{ + return adi_sf_default_bus; +} + +unsigned int spl_spi_get_default_cs(void) +{ + return adi_sf_default_cs; +} + +void board_boot_order(u32 *spl_boot_list) +{ + const char *bmodestring = sc5xx_get_boot_mode(&bmode); + + printf("ADI Boot Mode: 0x%x (%s)\n", bmode, bmodestring); + + /* + * By default everything goes back to the bootrom, where we'll read table + * parameters and ask for another image to be loaded + */ + spl_boot_list[0] = BOOT_DEVICE_BOOTROM; + + if (bmode == 0) { + printf("SPL execution has completed. Please load U-Boot Proper via JTAG"); + while (1) + ; + } +} + +int32_t __weak adi_rom_boot_hook(struct ADI_ROM_BOOT_CONFIG *config, int32_t cause) +{ + return 0; +} + +int board_return_to_bootrom(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev) +{ +#if CONFIG_ADI_SPL_FORCE_BMODE != 0 + // see above + if (bmode != 0 && bmode != 3) + bmode = CONFIG_ADI_SPL_FORCE_BMODE; +#endif + + if (bmode >= (ARRAY_SIZE(adi_rom_boot_args))) + bmode = 0; + + adi_rom_boot((void *)adi_rom_boot_args[bmode].addr, + adi_rom_boot_args[bmode].flags, + 0, &adi_rom_boot_hook, + adi_rom_boot_args[bmode].cmd); + return 0; +}; + +void board_init_f(ulong dummy) +{ + int ret; + + clks_init(); + DMC_Config(); + sc5xx_soc_init(); + + ret = spl_early_init(); + if (ret) + panic("spl_early_init() failed\n"); + + preloader_console_init(); +} + diff --git a/include/env/adi/adi_boot.env b/include/env/adi/adi_boot.env new file mode 100644 index 0000000000..d56b14f517 --- /dev/null +++ b/include/env/adi/adi_boot.env @@ -0,0 +1,122 @@ +/* + * A target board needs to set these variables for the commands below to work: + * + * - adi_stage2_offset, the location of stage2-boot.ldr on the SPI flash + * - adi_image_offset, location of the fitImage on the SPI flash + * - adi_rfs_offset, location of the RFS on the SPI flash + * - loadaddr, where you want to load things + * - jffs2file, name of the jffs2 file for update, ex adsp-sc5xx-tiny-adsp-sc573.jffs2 + */ + +#ifdef CONFIG_SC59X_64 +#define EARLY_PRINTK earlycon=adi_uart,0x31003000 +#else +#define EARLY_PRINTK earlyprintk=serial,uart0,CONFIG_BAUDRATE +#endif + +/* Config options */ +imagefile=fitImage +ethaddr=02:80:ad:20:31:e8 +eth1addr=02:80:ad:20:31:e9 +uart_console=CONFIG_UART_CONSOLE +#ifdef CONFIG_SC59X_64 +fdt_high=0xffffffffffffffff +initrd_high=0xffffffffffffffff +#else +fdt_high=0xffffffff +initrd_high=0xffffffff +#endif + +/* Helper routines */ +init_ethernet=mii info; + dhcp; + setenv serverip ${tftpserverip} + +/* Args for each boot mode */ +adi_bootargs=EARLY_PRINTK console=ttySC0,CONFIG_BAUDRATE vmalloc=512M +ramargs=setenv bootargs ${adi_bootargs} + +addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:eth0:off + +/* Boot modes are selectable and should be defined in the board env before including */ +#if defined(USE_NFS) +// rootpath is set by CONFIG_ROOTPATH +nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}${rootpath},tcp,nfsvers=3 ${adi_bootargs} +nfsboot=run init_ethernet; + tftp ${loadaddr} ${tftp_dir_prefix}${imagefile}; + run nfsargs; + run addip; + bootm ${loadaddr} +#endif + +#if defined(USE_MMC) +mmcargs=setenv bootargs root=/dev/mmcblk0p1 rw rootfstype=ext4 rootwait ${adi_bootargs} +mmcboot=mmc rescan; + ext4load mmc 0:1 ${loadaddr} /boot/${imagefile}; + run mmcargs; + bootm ${loadaddr} +#endif + +#if defined(USE_SPI) || defined(USE_OSPI) +spiargs=setenv bootargs root=/dev/mtdblock4 rw rootfstype=jffs2 ${adi_bootargs} +spiboot=run spiargs; + sf probe ${sfdev}; + sf read ${loadaddr} ${adi_image_offset} ${imagesize}; + bootm ${loadaddr} +#endif + +#if defined(USE_OSPI) +ospiboot=run spiboot +#endif + +#if defined(USE_RAM) +ramboot=run init_ethernet; + tftp ${loadaddr} ${tfpt_dir_prefix}${imagefile}; + run ramargs; + bootm ${loadaddr} +#endif + +/* Update commands */ +stage1file=stage1-boot.ldr +stage2file=stage2-boot.ldr + +#if defined(USE_SPI) || defined(USE_OSPI) +update_spi_uboot_stage1=tftp ${loadaddr} ${tftp_dir_prefix}${stage1file}; + sf probe ${sfdev}; + sf update ${loadaddr} 0x0 ${filesize} +update_spi_uboot_stage2=tftp ${loadaddr} ${tftp_dir_prefix}${stage2file}; + sf probe ${sfdev}; + sf update ${loadaddr} ${adi_stage2_offset} ${filesize} +update_spi_uboot=run update_spi_uboot_stage1; + run update_spi_uboot_stage2; +update_spi_fit=tftp ${loadaddr} ${tftp_dir_prefix}${imagefile}; + sf probe ${sfdev}; + sf update ${loadaddr} ${adi_image_offset} ${filesize}; + setenv imagesize ${filesize} +update_spi_rfs=tftp ${loadaddr} ${tftp_dir_prefix}${jffs2file}; + sf probe ${sfdev}; + sf update ${loadaddr} ${adi_rfs_offset} ${filesize} + +start_update_spi=run init_ethernet; + run update_spi_uboot; + run update_spi_fit; + run update_spi_rfs; +start_update_spi_uboot_only=run init_ethernet; + run update_spi_uboot; +#endif + +#if defined(USE_SPI) +update_spi=setenv sfdev CONFIG_SC_BOOT_SPI_BUS:CONFIG_SC_BOOT_SPI_SSEL; + setenv bootcmd run spiboot; + setenv argscmd spiargs; + run start_update_spi; + saveenv +#endif + +#if defined(USE_OSPI) +update_ospi=setenv sfdev CONFIG_SC_BOOT_OSPI_BUS:CONFIG_SC_BOOT_OSPI_SSEL; + setenv bootcmd run ospiboot; + setenv argscmd spiargs; + run start_update_spi; + saveenv +#endif

From: Nathan Barrett-Morrison nathan.morrison@timesys.com

Co-developed-by: Greg Malysa greg.malysa@timesys.com Signed-off-by: Greg Malysa greg.malysa@timesys.com Co-developed-by: Ian Roberts ian.roberts@timesys.com Signed-off-by: Ian Roberts ian.roberts@timesys.com Signed-off-by: Vasileios Bimpikas vasileios.bimpikas@analog.com Signed-off-by: Utsav Agarwal utsav.agarwal@analog.com Signed-off-by: Arturs Artamonovs arturs.artamonovs@analog.com Signed-off-by: Nathan Barrett-Morrison nathan.morrison@timesys.com ---

(no changes since v1)

MAINTAINERS | 1 + drivers/serial/Makefile | 1 + drivers/serial/serial_adi_uart4.c | 225 ++++++++++++++++++++++++++++++ 3 files changed, 227 insertions(+) create mode 100644 drivers/serial/serial_adi_uart4.c

diff --git a/MAINTAINERS b/MAINTAINERS index 78e3d59f96..74310c8f9d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -610,6 +610,7 @@ T: git https://github.com/analogdevicesinc/lnxdsp-u-boot F: arch/arm/include/asm/arch-adi/ F: arch/arm/mach-sc5xx/ F: drivers/clk/adi/ +F: drivers/serial/serial_adi_uart4.c F: include/env/adi/

ARM SNAPDRAGON diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 403ab1ded6..dbe598b740 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -65,3 +65,4 @@ obj-$(CONFIG_S5P4418_PL011_SERIAL) += serial_s5p4418_pl011.o ifndef CONFIG_SPL_BUILD obj-$(CONFIG_USB_TTY) += usbtty.o endif +obj-$(CONFIG_UART4_SERIAL) += serial_adi_uart4.o diff --git a/drivers/serial/serial_adi_uart4.c b/drivers/serial/serial_adi_uart4.c new file mode 100644 index 0000000000..45f8315d0a --- /dev/null +++ b/drivers/serial/serial_adi_uart4.c @@ -0,0 +1,225 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Converted to driver model by Nathan Barrett-Morrison + * + * Contact: Nathan Barrett-Morrison nathan.morrison@timesys.com + * Contact: Greg Malysa greg.malysa@timesys.com + * + */ + +#include <clk.h> +#include <dm.h> +#include <serial.h> +#include <asm/io.h> +#include <dm/device_compat.h> +#include <linux/bitops.h> + +/* + * UART4 Masks + */ + +/* UART_CONTROL */ +#define UEN BIT(0) +#define LOOP_ENA BIT(1) +#define UMOD (3 << 4) +#define UMOD_UART (0 << 4) +#define UMOD_MDB BIT(4) +#define UMOD_IRDA BIT(4) +#define WLS (3 << 8) +#define WLS_5 (0 << 8) +#define WLS_6 BIT(8) +#define WLS_7 (2 << 8) +#define WLS_8 (3 << 8) +#define STB BIT(12) +#define STBH BIT(13) +#define PEN BIT(14) +#define EPS BIT(15) +#define STP BIT(16) +#define FPE BIT(17) +#define FFE BIT(18) +#define SB BIT(19) +#define FCPOL BIT(22) +#define RPOLC BIT(23) +#define TPOLC BIT(24) +#define MRTS BIT(25) +#define XOFF BIT(26) +#define ARTS BIT(27) +#define ACTS BIT(28) +#define RFIT BIT(29) +#define RFRT BIT(30) + +/* UART_STATUS */ +#define DR BIT(0) +#define OE BIT(1) +#define PE BIT(2) +#define FE BIT(3) +#define BI BIT(4) +#define THRE BIT(5) +#define TEMT BIT(7) +#define TFI BIT(8) +#define ASTKY BIT(9) +#define ADDR BIT(10) +#define RO BIT(11) +#define SCTS BIT(12) +#define CTS BIT(16) +#define RFCS BIT(17) + +/* UART_EMASK */ +#define ERBFI BIT(0) +#define ETBEI BIT(1) +#define ELSI BIT(2) +#define EDSSI BIT(3) +#define EDTPTI BIT(4) +#define ETFI BIT(5) +#define ERFCI BIT(6) +#define EAWI BIT(7) +#define ERXS BIT(8) +#define ETXS BIT(9) + +DECLARE_GLOBAL_DATA_PTR; + +struct uart4_reg { + u32 revid; + u32 control; + u32 status; + u32 scr; + u32 clock; + u32 emask; + u32 emaskst; + u32 emaskcl; + u32 rbr; + u32 thr; + u32 taip; + u32 tsr; + u32 rsr; + u32 txdiv_cnt; + u32 rxdiv_cnt; +}; + +struct adi_uart4_platdata { + // Hardware registers + struct uart4_reg *regs; + + // Enable divide-by-one baud rate setting + bool edbo; +}; + +static int adi_uart4_set_brg(struct udevice *dev, int baudrate) +{ + struct adi_uart4_platdata *plat = dev_get_plat(dev); + struct uart4_reg *regs = plat->regs; + u32 divisor, uart_base_clk_rate; + struct clk uart_base_clk; + + if (clk_get_by_index(dev, 0, &uart_base_clk)) { + dev_err(dev, "Could not get UART base clock\n"); + return -1; + } + + uart_base_clk_rate = clk_get_rate(&uart_base_clk); + + if (plat->edbo) { + u16 divisor16 = (uart_base_clk_rate + (baudrate / 2)) / baudrate; + + divisor = divisor16 | BIT(31); + } else { + // Divisor is only 16 bits + divisor = 0x0000ffff & ((uart_base_clk_rate + (baudrate * 8)) / (baudrate * 16)); + } + + writel(divisor, &regs->clock); + return 0; +} + +static int adi_uart4_pending(struct udevice *dev, bool input) +{ + struct adi_uart4_platdata *plat = dev_get_plat(dev); + struct uart4_reg *regs = plat->regs; + + if (input) + return (readl(&regs->status) & DR) ? 1 : 0; + else + return (readl(&regs->status) & THRE) ? 0 : 1; +} + +static int adi_uart4_getc(struct udevice *dev) +{ + struct adi_uart4_platdata *plat = dev_get_plat(dev); + struct uart4_reg *regs = plat->regs; + int uart_rbr_val; + + if (!adi_uart4_pending(dev, true)) + return -EAGAIN; + + uart_rbr_val = readl(&regs->rbr); + writel(-1, &regs->status); + + return uart_rbr_val; +} + +static int adi_uart4_putc(struct udevice *dev, const char ch) +{ + struct adi_uart4_platdata *plat = dev_get_plat(dev); + struct uart4_reg *regs = plat->regs; + + if (adi_uart4_pending(dev, false)) + return -EAGAIN; + + writel(ch, &regs->thr); + return 0; +} + +static const struct dm_serial_ops adi_uart4_serial_ops = { + .setbrg = adi_uart4_set_brg, + .getc = adi_uart4_getc, + .putc = adi_uart4_putc, + .pending = adi_uart4_pending, +}; + +static int adi_uart4_of_to_plat(struct udevice *dev) +{ + struct adi_uart4_platdata *plat = dev_get_plat(dev); + fdt_addr_t addr; + + addr = dev_read_addr(dev); + if (addr == FDT_ADDR_T_NONE) + return -EINVAL; + + plat->regs = (struct uart4_reg *)addr; + plat->edbo = dev_read_bool(dev, "adi,enable-edbo"); + + return 0; +} + +static int adi_uart4_probe(struct udevice *dev) +{ + struct adi_uart4_platdata *plat = dev_get_plat(dev); + struct uart4_reg *regs = plat->regs; + + /* always enable UART to 8-bit mode */ + writel(UEN | UMOD_UART | WLS_8, &regs->control); + + writel(-1, &regs->status); + + return 0; +} + +static const struct udevice_id adi_uart4_serial_ids[] = { + { .compatible = "adi,uart4" }, + { } +}; + +U_BOOT_DRIVER(serial_adi_uart4) = { + .name = "serial_adi_uart4", + .id = UCLASS_SERIAL, + .of_match = adi_uart4_serial_ids, + .of_to_plat = adi_uart4_of_to_plat, + .plat_auto = sizeof(struct adi_uart4_platdata), + .probe = adi_uart4_probe, + .ops = &adi_uart4_serial_ops, + .flags = DM_FLAG_PRE_RELOC, +};