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u-boot/drivers/clk/sunxi/clk_a64.c

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clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Amarula Solutions.
* Author: Jagan Teki <jagan@amarulasolutions.com>
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
clk: sunxi: Move header out of arch directory The CCU header is only used by the DM drivers, not any platform code. Its current location adds an artificial dependency on CONFIG_ARM and ARCH_SUNXI, which will be problematic when adding the CCU driver for a RISC-V sunxi platform. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-09-12 16:48:43 +00:00
#include <clk/sunxi.h>
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
#include <dt-bindings/clock/sun50i-a64-ccu.h>
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
#include <dt-bindings/reset/sun50i-a64-ccu.h>
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-10 17:40:13 +00:00
#include <linux/bitops.h>
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
static const struct ccu_clk_gate a64_gates[] = {
clk: sunxi: add PIO bus gate clocks The introduction of the DM pinctrl driver made its probe function enable all clocks enumerated in the DT. This includes the "CLK_BUS_PIO" (and variations) gate clock. Also CLK_PLL_PERIPH0 is used by the R_CCU device. So far we didn't describe those clocks in our clock driver. As we enable them already in the SPL, the devices happen to work, but the clock driver still complains about not finding those clocks: ========= sunxi_set_gate: (CLK#58) unhandled ========= Add the one-liners that are needed to announce the gate bit for those clocks, to silence that message on the console. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Samuel Holland <samuel@sholland.org>
2022-05-04 21:10:28 +00:00
[CLK_PLL_PERIPH0] = GATE(0x028, BIT(31)),
sunxi: clk: add MMC gates/resets Add the MMC clock gates and reset bits for all the Allwinner SoCs. This allows them to be used by the MMC driver. We don't advertise the mod clock yet, as this is still handled by the MMC driver. Signed-off-by: Andre Przywara <andre.przywara@arm.com> [jagan: add V3S, A80 gates/resets] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2019-01-29 15:54:09 +00:00
[CLK_BUS_MMC0] = GATE(0x060, BIT(8)),
[CLK_BUS_MMC1] = GATE(0x060, BIT(9)),
[CLK_BUS_MMC2] = GATE(0x060, BIT(10)),
clk: sunxi: Implement EMAC, GMAC clocks, resets - Implement EMAC, GMAC clocks via ccu_clk_gate for all supported Allwinner SoCs. - Implement EMAC, GMAC resets via ccu_reset for all supported Allwinner SoCs. Cc: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-02-27 18:56:57 +00:00
[CLK_BUS_EMAC] = GATE(0x060, BIT(17)),
clk: sunxi: Implement SPI clocks, resets - Implement SPI AHB, MOD clocks via ccu_clk_gate for all supported Allwinner SoCs - Implement SPI resets via ccu_reset for all supported Allwinner SoCs. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-02-27 14:32:06 +00:00
[CLK_BUS_SPI0] = GATE(0x060, BIT(20)),
[CLK_BUS_SPI1] = GATE(0x060, BIT(21)),
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
[CLK_BUS_OTG] = GATE(0x060, BIT(23)),
[CLK_BUS_EHCI0] = GATE(0x060, BIT(24)),
[CLK_BUS_EHCI1] = GATE(0x060, BIT(25)),
[CLK_BUS_OHCI0] = GATE(0x060, BIT(28)),
[CLK_BUS_OHCI1] = GATE(0x060, BIT(29)),
clk: sunxi: add PIO bus gate clocks The introduction of the DM pinctrl driver made its probe function enable all clocks enumerated in the DT. This includes the "CLK_BUS_PIO" (and variations) gate clock. Also CLK_PLL_PERIPH0 is used by the R_CCU device. So far we didn't describe those clocks in our clock driver. As we enable them already in the SPL, the devices happen to work, but the clock driver still complains about not finding those clocks: ========= sunxi_set_gate: (CLK#58) unhandled ========= Add the one-liners that are needed to announce the gate bit for those clocks, to silence that message on the console. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Samuel Holland <samuel@sholland.org>
2022-05-04 21:10:28 +00:00
[CLK_BUS_PIO] = GATE(0x068, BIT(5)),
clk: sunxi: Add support for I2C gates/resets Currently, the I2C clocks are configured in the sunxi board code. Add the I2C clocks to the DM clock driver so they can be enabled from the DM I2C driver using the normal uclass methods. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-09-12 14:47:24 +00:00
[CLK_BUS_I2C0] = GATE(0x06c, BIT(0)),
[CLK_BUS_I2C1] = GATE(0x06c, BIT(1)),
[CLK_BUS_I2C2] = GATE(0x06c, BIT(2)),
clk: sunxi: Implement UART clocks Implement UART clocks for all Allwinner SoC clock drivers via ccu clock gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2018-12-30 15:59:24 +00:00
[CLK_BUS_UART0] = GATE(0x06c, BIT(16)),
[CLK_BUS_UART1] = GATE(0x06c, BIT(17)),
[CLK_BUS_UART2] = GATE(0x06c, BIT(18)),
[CLK_BUS_UART3] = GATE(0x06c, BIT(19)),
[CLK_BUS_UART4] = GATE(0x06c, BIT(20)),
clk: sunxi: Implement SPI clocks, resets - Implement SPI AHB, MOD clocks via ccu_clk_gate for all supported Allwinner SoCs - Implement SPI resets via ccu_reset for all supported Allwinner SoCs. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-02-27 14:32:06 +00:00
[CLK_SPI0] = GATE(0x0a0, BIT(31)),
[CLK_SPI1] = GATE(0x0a4, BIT(31)),
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
[CLK_USB_PHY0] = GATE(0x0cc, BIT(8)),
[CLK_USB_PHY1] = GATE(0x0cc, BIT(9)),
[CLK_USB_HSIC] = GATE(0x0cc, BIT(10)),
[CLK_USB_HSIC_12M] = GATE(0x0cc, BIT(11)),
[CLK_USB_OHCI0] = GATE(0x0cc, BIT(16)),
[CLK_USB_OHCI1] = GATE(0x0cc, BIT(17)),
};
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
static const struct ccu_reset a64_resets[] = {
[RST_USB_PHY0] = RESET(0x0cc, BIT(0)),
[RST_USB_PHY1] = RESET(0x0cc, BIT(1)),
[RST_USB_HSIC] = RESET(0x0cc, BIT(2)),
sunxi: clk: add MMC gates/resets Add the MMC clock gates and reset bits for all the Allwinner SoCs. This allows them to be used by the MMC driver. We don't advertise the mod clock yet, as this is still handled by the MMC driver. Signed-off-by: Andre Przywara <andre.przywara@arm.com> [jagan: add V3S, A80 gates/resets] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2019-01-29 15:54:09 +00:00
[RST_BUS_MMC0] = RESET(0x2c0, BIT(8)),
[RST_BUS_MMC1] = RESET(0x2c0, BIT(9)),
[RST_BUS_MMC2] = RESET(0x2c0, BIT(10)),
clk: sunxi: Implement EMAC, GMAC clocks, resets - Implement EMAC, GMAC clocks via ccu_clk_gate for all supported Allwinner SoCs. - Implement EMAC, GMAC resets via ccu_reset for all supported Allwinner SoCs. Cc: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-02-27 18:56:57 +00:00
[RST_BUS_EMAC] = RESET(0x2c0, BIT(17)),
clk: sunxi: Implement SPI clocks, resets - Implement SPI AHB, MOD clocks via ccu_clk_gate for all supported Allwinner SoCs - Implement SPI resets via ccu_reset for all supported Allwinner SoCs. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-02-27 14:32:06 +00:00
[RST_BUS_SPI0] = RESET(0x2c0, BIT(20)),
[RST_BUS_SPI1] = RESET(0x2c0, BIT(21)),
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
[RST_BUS_OTG] = RESET(0x2c0, BIT(23)),
[RST_BUS_EHCI0] = RESET(0x2c0, BIT(24)),
[RST_BUS_EHCI1] = RESET(0x2c0, BIT(25)),
[RST_BUS_OHCI0] = RESET(0x2c0, BIT(28)),
[RST_BUS_OHCI1] = RESET(0x2c0, BIT(29)),
clk: sunxi: Implement UART resets Implement UART resets for all relevant Allwinner SoC clock drivers via ccu reset table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2018-12-30 16:07:31 +00:00
clk: sunxi: Add support for I2C gates/resets Currently, the I2C clocks are configured in the sunxi board code. Add the I2C clocks to the DM clock driver so they can be enabled from the DM I2C driver using the normal uclass methods. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-09-12 14:47:24 +00:00
[RST_BUS_I2C0] = RESET(0x2d8, BIT(0)),
[RST_BUS_I2C1] = RESET(0x2d8, BIT(1)),
[RST_BUS_I2C2] = RESET(0x2d8, BIT(2)),
clk: sunxi: Implement UART resets Implement UART resets for all relevant Allwinner SoC clock drivers via ccu reset table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2018-12-30 16:07:31 +00:00
[RST_BUS_UART0] = RESET(0x2d8, BIT(16)),
[RST_BUS_UART1] = RESET(0x2d8, BIT(17)),
[RST_BUS_UART2] = RESET(0x2d8, BIT(18)),
[RST_BUS_UART3] = RESET(0x2d8, BIT(19)),
[RST_BUS_UART4] = RESET(0x2d8, BIT(20)),
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
};
clk: sunxi: Use a single driver for all variants Now that all of the variants use the same bind/probe functions and ops, there is no need to have a separate driver for each variant. Since most SoCs contain two variants (the main CCU and PRCM CCU), this saves a bit of firmware size and RAM. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> [Andre: add F1C100s support] Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-05-09 05:29:34 +00:00
const struct ccu_desc a64_ccu_desc = {
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
.gates = a64_gates,
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
.resets = a64_resets,
clk: sunxi: Store the array sizes in the CCU descriptor The reset array size is currently used for bounds checking in the reset driver. The same bounds check should really be done in the clock driver. Currently, the array size is provided to the reset driver separately from the CCU descriptor, which is a bit strange. Let's do this the usual way, with the array sizes next to the arrays themselves. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> [Andre: add F1C100s support] Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-05-09 05:29:31 +00:00
.num_gates = ARRAY_SIZE(a64_gates),
.num_resets = ARRAY_SIZE(a64_resets),
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
};
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