Implement sam9x60 USB clock driver. This clock has three parents: PLLA, UPLL and MAINXTAL. The driver is aware of the three possible parents with the help of the two mux tables provied to the driver during the registration of the clock.

Signed-off-by: Sergiu Moga sergiu.moga@microchip.com ---

v1 -> v3: - No change

drivers/clk/at91/Kconfig | 7 ++ drivers/clk/at91/Makefile | 1 + drivers/clk/at91/clk-sam9x60-usb.c | 156 +++++++++++++++++++++++++++++ drivers/clk/at91/pmc.h | 11 ++ 4 files changed, 175 insertions(+) create mode 100644 drivers/clk/at91/clk-sam9x60-usb.c

diff --git a/drivers/clk/at91/Kconfig b/drivers/clk/at91/Kconfig index 4abc8026b4..4563892647 100644 --- a/drivers/clk/at91/Kconfig +++ b/drivers/clk/at91/Kconfig @@ -61,3 +61,10 @@ config AT91_SAM9X60_PLL help This option is used to enable the AT91 SAM9X60's PLL clock driver. + +config AT91_SAM9X60_USB + bool "USB Clock support for SAM9X60 SoCs" + depends on CLK_AT91 + help + This option is used to enable the AT91 SAM9X60's USB clock + driver. diff --git a/drivers/clk/at91/Makefile b/drivers/clk/at91/Makefile index 580b406d7b..e53dcb4ca7 100644 --- a/drivers/clk/at91/Makefile +++ b/drivers/clk/at91/Makefile @@ -9,6 +9,7 @@ obj-y += clk-peripheral.o obj-$(CONFIG_AT91_GENERIC_CLK) += clk-generic.o obj-$(CONFIG_AT91_UTMI) += clk-utmi.o obj-$(CONFIG_AT91_SAM9X60_PLL) += clk-sam9x60-pll.o +obj-$(CONFIG_AT91_SAM9X60_USB) += clk-sam9x60-usb.o obj-$(CONFIG_SAMA7G5) += sama7g5.o obj-$(CONFIG_SAM9X60) += sam9x60.o else diff --git a/drivers/clk/at91/clk-sam9x60-usb.c b/drivers/clk/at91/clk-sam9x60-usb.c new file mode 100644 index 0000000000..0ccdc1494d --- /dev/null +++ b/drivers/clk/at91/clk-sam9x60-usb.c @@ -0,0 +1,156 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * SAM9X60's USB Clock support. + * + * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries + * + * Author: Sergiu Moga sergiu.moga@microchip.com + */ + +#include <clk-uclass.h> +#include <dm.h> +#include <linux/clk-provider.h> + +#include "pmc.h" + +#define UBOOT_DM_CLK_AT91_SAM9X60_USB "at91-sam9x60-usb-clk" + +struct sam9x60_usb { + const struct clk_usbck_layout *layout; + void __iomem *base; + struct clk clk; + const u32 *clk_mux_table; + const u32 *mux_table; + const char * const *parent_names; + u32 num_parents; + u8 id; +}; + +#define to_sam9x60_usb(_clk) container_of(_clk, struct sam9x60_usb, clk) +#define USB_MAX_DIV 15 + +static int sam9x60_usb_clk_set_parent(struct clk *clk, struct clk *parent) +{ + struct sam9x60_usb *usb = to_sam9x60_usb(clk); + u32 val, index; + + index = at91_clk_mux_val_to_index(usb->clk_mux_table, usb->num_parents, + parent->id); + if (index < 0) + return index; + + index = at91_clk_mux_index_to_val(usb->mux_table, usb->num_parents, + index); + if (index < 0) + return index; + + pmc_read(usb->base, usb->layout->offset, &val); + val &= ~usb->layout->usbs_mask; + val |= index << (ffs(usb->layout->usbs_mask - 1)); + pmc_write(usb->base, usb->layout->offset, val); + + return 0; +} + +static ulong sam9x60_usb_clk_get_rate(struct clk *clk) +{ + struct sam9x60_usb *usb = to_sam9x60_usb(clk); + ulong parent_rate = clk_get_parent_rate(clk); + u32 val, usbdiv; + + if (!parent_rate) + return 0; + + pmc_read(usb->base, usb->layout->offset, &val); + usbdiv = (val & usb->layout->usbdiv_mask) >> + (ffs(usb->layout->usbdiv_mask) - 1); + return parent_rate / (usbdiv + 1); +} + +static ulong sam9x60_usb_clk_set_rate(struct clk *clk, ulong rate) +{ + struct sam9x60_usb *usb = to_sam9x60_usb(clk); + ulong parent_rate = clk_get_parent_rate(clk); + u32 usbdiv, val; + + if (!parent_rate) + return 0; + + usbdiv = DIV_ROUND_CLOSEST(parent_rate, rate); + if (usbdiv > USB_MAX_DIV + 1 || !usbdiv) + return 0; + + pmc_read(usb->base, usb->layout->offset, &val); + val &= usb->layout->usbdiv_mask; + val |= (usbdiv - 1) << (ffs(usb->layout->usbdiv_mask) - 1); + pmc_write(usb->base, usb->layout->offset, val); + + return parent_rate / usbdiv; +} + +static const struct clk_ops sam9x60_usb_ops = { + .set_parent = sam9x60_usb_clk_set_parent, + .set_rate = sam9x60_usb_clk_set_rate, + .get_rate = sam9x60_usb_clk_get_rate, +}; + +struct clk * +sam9x60_clk_register_usb(void __iomem *base, const char *name, + const char * const *parent_names, u8 num_parents, + const struct clk_usbck_layout *usbck_layout, + const u32 *clk_mux_table, const u32 *mux_table, u8 id) +{ + struct sam9x60_usb *usb; + struct clk *clk; + int ret; + u32 val, index; + + if (!base || !name || !parent_names || !num_parents || + !clk_mux_table || !mux_table) + return ERR_PTR(-EINVAL); + + usb = kzalloc(sizeof(*usb), GFP_KERNEL); + if (!usb) + return ERR_PTR(-ENOMEM); + + usb->id = id; + usb->base = base; + usb->layout = usbck_layout; + usb->parent_names = parent_names; + usb->num_parents = num_parents; + usb->clk_mux_table = clk_mux_table; + usb->mux_table = mux_table; + + clk = &usb->clk; + clk->flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE | + CLK_SET_RATE_PARENT; + + pmc_read(usb->base, usb->layout->offset, &val); + + val = (val & usb->layout->usbs_mask) >> + (ffs(usb->layout->usbs_mask) - 1); + + index = at91_clk_mux_val_to_index(usb->mux_table, usb->num_parents, + val); + + if (index < 0) { + kfree(usb); + return ERR_PTR(index); + } + + ret = clk_register(clk, UBOOT_DM_CLK_AT91_SAM9X60_USB, name, + parent_names[index]); + if (ret) { + kfree(usb); + clk = ERR_PTR(ret); + } + + return clk; +} + +U_BOOT_DRIVER(at91_sam9x60_usb_clk) = { + .name = UBOOT_DM_CLK_AT91_SAM9X60_USB, + .id = UCLASS_CLK, + .ops = &sam9x60_usb_ops, + .flags = DM_FLAG_PRE_RELOC, +}; diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 2b4dd9a3d9..17793b8802 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -71,6 +71,12 @@ struct clk_pcr_layout { u32 pid_mask; };

+struct clk_usbck_layout { + u32 offset; + u32 usbs_mask; + u32 usbdiv_mask; +}; + extern const struct clk_programmable_layout at91rm9200_programmable_layout; extern const struct clk_programmable_layout at91sam9g45_programmable_layout; extern const struct clk_programmable_layout at91sam9x5_programmable_layout; @@ -87,6 +93,11 @@ struct clk *at91_clk_sam9x5_main(void __iomem *reg, const char *name, const char * const *parent_names, int num_parents, const u32 *mux_table, int type); struct clk * +sam9x60_clk_register_usb(void __iomem *base, const char *name, + const char * const *parent_names, u8 num_parents, + const struct clk_usbck_layout *usbck_layout, + const u32 *clk_mux_table, const u32 *mux_table, u8 id); +struct clk * sam9x60_clk_register_div_pll(void __iomem *base, const char *name, const char *parent_name, u8 id, const struct clk_pll_characteristics *characteristics,

From: Claudiu Beznea claudiu.beznea@microchip.com

Clock setup was intended for setting clocks at boot time on SAMA7G5, e.g. for root clocks like PLLs, that were used to feed IPs needed alive in u-boot (e.g. Ethernet clock feed by a PLL). Export this functionality to all at91 clocks as it may be necessary on other SoCs.

Signed-off-by: Claudiu Beznea claudiu.beznea@microchip.com Signed-off-by: Sergiu Moga sergiu.moga@microchip.com ---

v1 -> v2: - Additional patch, this was not here in v1

v2 -> v3: - Nothing

drivers/clk/at91/pmc.c | 42 +++++++++++++++++++++++++++++++++ drivers/clk/at91/pmc.h | 16 +++++++++++++ drivers/clk/at91/sama7g5.c | 48 +++++--------------------------------- 3 files changed, 64 insertions(+), 42 deletions(-)

diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c index 270892517a..87d2069d89 100644 --- a/drivers/clk/at91/pmc.c +++ b/drivers/clk/at91/pmc.c @@ -120,3 +120,45 @@ int at91_clk_mux_index_to_val(const u32 *table, u32 num_parents, u32 index)

return table[index]; } + +int at91_clk_setup(const struct pmc_clk_setup *setup, int size) +{ + struct clk *c, *parent; + int i, ret; + + if (!size) + return 0; + + if (!setup) + return -EINVAL; + + for (i = 0; i < size; i++) { + ret = clk_get_by_id(setup[i].cid, &c); + if (ret) + return ret; + + if (setup[i].pid) { + ret = clk_get_by_id(setup[i].pid, &parent); + if (ret) + return ret; + + ret = clk_set_parent(c, parent); + if (ret) + return ret; + + if (setup[i].prate) { + ret = clk_set_rate(parent, setup[i].prate); + if (ret < 0) + return ret; + } + } + + if (setup[i].rate) { + ret = clk_set_rate(c, setup[i].rate); + if (ret < 0) + return ret; + } + } + + return 0; +} diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 17793b8802..ff464522aa 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -77,6 +77,20 @@ struct clk_usbck_layout { u32 usbdiv_mask; };

+/** + * Clock setup description + * @cid: clock id corresponding to clock subsystem + * @pid: parent clock id corresponding to clock subsystem + * @rate: clock rate + * @prate: parent rate + */ +struct pmc_clk_setup { + unsigned int cid; + unsigned int pid; + unsigned long rate; + unsigned long prate; +}; + extern const struct clk_programmable_layout at91rm9200_programmable_layout; extern const struct clk_programmable_layout at91sam9g45_programmable_layout; extern const struct clk_programmable_layout at91sam9x5_programmable_layout; @@ -160,4 +174,6 @@ void pmc_write(void __iomem *base, unsigned int off, unsigned int val); void pmc_update_bits(void __iomem *base, unsigned int off, unsigned int mask, unsigned int bits);

+int at91_clk_setup(const struct pmc_clk_setup *setup, int size); + #endif diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c index d1ec3c82b5..8bd9c14156 100644 --- a/drivers/clk/at91/sama7g5.c +++ b/drivers/clk/at91/sama7g5.c @@ -1070,19 +1070,8 @@ static const struct { }, };

-/** - * Clock setup description - * @cid: clock id corresponding to clock subsystem - * @pid: parent clock id corresponding to clock subsystem - * @rate: clock rate - * @prate: parent rate - */ -static const struct pmc_clk_setup { - unsigned int cid; - unsigned int pid; - unsigned long rate; - unsigned long prate; -} sama7g5_clk_setup[] = { +/* Clock setup description */ +static const struct pmc_clk_setup sama7g5_clk_setup[] = { { .cid = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_ETH_FRAC), .rate = 625000000, @@ -1119,7 +1108,7 @@ static int sama7g5_clk_probe(struct udevice *dev) unsigned int *muxallocs[SAMA7G5_MAX_MUX_ALLOCS]; const char *p[10]; unsigned int cm[10], m[10], *tmpclkmux, *tmpmux; - struct clk clk, *c, *parent; + struct clk clk, *c; bool main_osc_bypass; int ret, muxallocindex = 0, clkmuxallocindex = 0, i, j;

@@ -1353,34 +1342,9 @@ static int sama7g5_clk_probe(struct udevice *dev) }

/* Setup clocks. */ - for (i = 0; i < ARRAY_SIZE(sama7g5_clk_setup); i++) { - ret = clk_get_by_id(sama7g5_clk_setup[i].cid, &c); - if (ret) - goto fail; - - if (sama7g5_clk_setup[i].pid) { - ret = clk_get_by_id(sama7g5_clk_setup[i].pid, &parent); - if (ret) - goto fail; - - ret = clk_set_parent(c, parent); - if (ret) - goto fail; - - if (sama7g5_clk_setup[i].prate) { - ret = clk_set_rate(parent, - sama7g5_clk_setup[i].prate); - if (ret < 0) - goto fail; - } - } - - if (sama7g5_clk_setup[i].rate) { - ret = clk_set_rate(c, sama7g5_clk_setup[i].rate); - if (ret < 0) - goto fail; - } - } + ret = at91_clk_setup(sama7g5_clk_setup, ARRAY_SIZE(sama7g5_clk_setup)); + if (ret) + goto fail;

return 0;

Register the OHCI driver into DM by properly initializing the required clocks and pins required by the DT node of OHCI. In order for the VBUS to stay enabled, a `child_pre_probe` method has been added to overcome the DM core disabling it in `usb_scan_device`: when the generic `device_probe` method is called, the pinctrl is processed once again, undoing whatever changes have been made in our driver's probe method.

Signed-off-by: Sergiu Moga sergiu.moga@microchip.com ---

v1 -> v2: - Move ` #include <asm/arch/clk.h>` below `#if !(CONFIG_IS_ENABLED(DM_USB))` to avoid implicit declarations warnings/errors

v2 -> v3: - No change

drivers/usb/host/ohci-at91.c | 183 +++++++++++++++++++++++++++++++++++ 1 file changed, 183 insertions(+)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 9b955c1bd6..8a10a29564 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -5,6 +5,9 @@ */

#include <common.h> + +#if !(CONFIG_IS_ENABLED(DM_USB)) + #include <asm/arch/clk.h>

int usb_cpu_init(void) @@ -62,3 +65,183 @@ int usb_cpu_init_fail(void) { return usb_cpu_stop(); } + +#elif CONFIG_IS_ENABLED(DM_GPIO) + +#include <clk.h> +#include <dm.h> +#include <asm/gpio.h> +#include <usb.h> +#include "ohci.h" + +#define AT91_MAX_USBH_PORTS 3 + +#define at91_for_each_port(index) \ + for ((index) = 0; (index) < AT91_MAX_USBH_PORTS; (index)++) + +struct at91_usbh_data { + enum usb_init_type init_type; + struct gpio_desc vbus_pin[AT91_MAX_USBH_PORTS]; + u8 ports; /* number of ports on root hub */ +}; + +struct ohci_at91_priv { + struct clk *iclk; + struct clk *fclk; + struct clk *hclk; + bool clocked; +}; + +static void at91_start_clock(struct ohci_at91_priv *ohci_at91) +{ + if (ohci_at91->clocked) + return; + + clk_set_rate(ohci_at91->fclk, 48000000); + clk_prepare_enable(ohci_at91->hclk); + clk_prepare_enable(ohci_at91->iclk); + clk_prepare_enable(ohci_at91->fclk); + ohci_at91->clocked = true; +} + +static void at91_stop_clock(struct ohci_at91_priv *ohci_at91) +{ + if (!ohci_at91->clocked) + return; + + clk_disable_unprepare(ohci_at91->fclk); + clk_disable_unprepare(ohci_at91->iclk); + clk_disable_unprepare(ohci_at91->hclk); + ohci_at91->clocked = false; +} + +static void ohci_at91_set_power(struct at91_usbh_data *pdata, int port, + bool enable) +{ + if (!dm_gpio_is_valid(&pdata->vbus_pin[port])) + return; + + if (enable) + dm_gpio_set_dir_flags(&pdata->vbus_pin[port], + GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE); + else + dm_gpio_set_dir_flags(&pdata->vbus_pin[port], 0); +} + +static void at91_start_hc(struct udevice *dev) +{ + struct ohci_at91_priv *ohci_at91 = dev_get_priv(dev); + + at91_start_clock(ohci_at91); +} + +static void at91_stop_hc(struct udevice *dev) +{ + struct ohci_at91_priv *ohci_at91 = dev_get_priv(dev); + + at91_stop_clock(ohci_at91); +} + +static int ohci_atmel_deregister(struct udevice *dev) +{ + struct at91_usbh_data *pdata = dev_get_plat(dev); + int i; + + at91_stop_hc(dev); + + at91_for_each_port(i) { + if (i >= pdata->ports) + break; + + ohci_at91_set_power(pdata, i, false); + } + + return ohci_deregister(dev); +} + +static int ohci_atmel_child_pre_probe(struct udevice *dev) +{ + struct udevice *ohci_controller = dev_get_parent(dev); + struct at91_usbh_data *pdata = dev_get_plat(ohci_controller); + int i; + + at91_for_each_port(i) { + if (i >= pdata->ports) + break; + + ohci_at91_set_power(pdata, i, true); + } + + return 0; +} + +static int ohci_atmel_probe(struct udevice *dev) +{ + struct at91_usbh_data *pdata = dev_get_plat(dev); + struct ohci_at91_priv *ohci_at91 = dev_get_priv(dev); + int i; + int ret; + u32 ports; + struct ohci_regs *regs = (struct ohci_regs *)dev_read_addr(dev); + + if (!dev_read_u32(dev, "num-ports", &ports)) + pdata->ports = ports; + + at91_for_each_port(i) { + if (i >= pdata->ports) + break; + + gpio_request_by_name(dev, "atmel,vbus-gpio", i, + &pdata->vbus_pin[i], GPIOD_IS_OUT | + GPIOD_IS_OUT_ACTIVE); + } + + ohci_at91->iclk = devm_clk_get(dev, "ohci_clk"); + if (IS_ERR(ohci_at91->iclk)) { + ret = PTR_ERR(ohci_at91->iclk); + goto fail; + } + + ohci_at91->fclk = devm_clk_get(dev, "uhpck"); + if (IS_ERR(ohci_at91->fclk)) { + ret = PTR_ERR(ohci_at91->fclk); + goto fail; + } + + ohci_at91->hclk = devm_clk_get(dev, "hclk"); + if (IS_ERR(ohci_at91->hclk)) { + ret = PTR_ERR(ohci_at91->hclk); + goto fail; + } + + at91_start_hc(dev); + + return ohci_register(dev, regs); + +fail: + at91_for_each_port(i) + if (&pdata->vbus_pin[i]) + gpio_free(pdata->vbus_pin[i].offset); + + return ret; +} + +static const struct udevice_id ohci_usb_ids[] = { + { .compatible = "atmel,at91rm9200-ohci", }, + { } +}; + +U_BOOT_DRIVER(ohci_atmel) = { + .name = "ohci_atmel", + .id = UCLASS_USB, + .of_match = ohci_usb_ids, + .probe = ohci_atmel_probe, + .remove = ohci_atmel_deregister, + .child_pre_probe = ohci_atmel_child_pre_probe, + .ops = &ohci_usb_ops, + .plat_auto = sizeof(struct at91_usbh_data), + .priv_auto = sizeof(struct ohci_at91_priv), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; + +#endif /* CONFIG_IS_ENABLED(DM_USB) && CONFIG_IS_ENABLED(DM_GPIO) */

Add definitions for an additional main UTMI clock as well as its respective subclocks.

Signed-off-by: Sergiu Moga sergiu.moga@microchip.com ---

v1 -> v3: - No change

include/dt-bindings/clk/at91.h | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/include/dt-bindings/clk/at91.h b/include/dt-bindings/clk/at91.h index e30756b280..386f01cf31 100644 --- a/include/dt-bindings/clk/at91.h +++ b/include/dt-bindings/clk/at91.h @@ -18,5 +18,10 @@ #define PMC_TYPE_PERIPHERAL 3 #define PMC_TYPE_GCK 4 #define PMC_TYPE_SLOW 5 +#define UTMI 6 + +#define UTMI1 0 +#define UTMI2 1 +#define UTMI3 2

#endif

From: Cristian Birsan cristian.birsan@microchip.com

Special Function Registers(SFR) definitions for SAMA7 product family.

Signed-off-by: Cristian Birsan cristian.birsan@microchip.com Signed-off-by: Sergiu Moga sergiu.moga@microchip.com ---

v1 -> v3: - No change

arch/arm/mach-at91/include/mach/sama7-sfr.h | 59 +++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 arch/arm/mach-at91/include/mach/sama7-sfr.h

diff --git a/arch/arm/mach-at91/include/mach/sama7-sfr.h b/arch/arm/mach-at91/include/mach/sama7-sfr.h new file mode 100644 index 0000000000..a987ff5465 --- /dev/null +++ b/arch/arm/mach-at91/include/mach/sama7-sfr.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Microchip SFR (Special Function Registers) registers for SAMA7 family. + * + * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries + * + * Author: Cristian Birsan cristian.birsan@microchip.com + */ + +#ifndef _LINUX_MFD_SYSCON_AT91_SAMA7_SFR_H +#define _LINUX_MFD_SYSCON_AT91_SAMA7_SFR_H + +#define SAMA7_SFR_OHCIICR 0x00 /* OHCI INT Configuration Register */ +#define SAMA7_SFR_OHCIISR 0x04 /* OHCI INT Status Register */ +/* 0x08 ~ 0xe3: Reserved */ +#define SAMA7_SFR_WPMR 0xe4 /* Write Protection Mode Register */ +#define SAMA7_SFR_WPSR 0xe4 /* Write Protection Status Register */ +/* 0xec ~ 0x200b: Reserved */ +#define SAMA7_SFR_DEBUG 0x200c /* Debug Register */ + +/* 0x2010 ~ 0x2027: Reserved */ +#define SAMA7_SFR_EHCIOHCI 0x2020 /* EHCI OHCI Clock Configuration Reg */ + +#define SAMA7_SFR_HSS_AXI_QOS 0x2028 /* HSS AXI QOS Register */ +#define SAMA7_SFR_UDDRC 0x202c /* UDDRC Register */ +#define SAMA7_SFR_CAN_SRAM_SEL 0x2030 /* CAN SRAM Select. Register */ +/* 0x2034 ~ 0x203f: Reserved */ + +#define SAMA7_SFR_UTMI0 0x2040 +#define SAMA7_SFR_UTMI0R(x) (SAMA7_SFR_UTMI0 + 4 * (x)) + +#define SAMA7_SFR_UTMI0R0 0x2040 /* UTMI0 Configuration Register */ +#define SAMA7_SFR_UTMI0R1 0x2044 /* UTMI1 Configuration Register */ +#define SAMA7_SFR_UTMI0R2 0x2048 /* UTMI2 Configuration Register */ + +/* Field definitions */ +#define SAMA7_SFR_OHCIICR_ARIE BIT(0) +#define SAMA7_SFR_OHCIICR_APPSTART BIT(1) +#define SAMA7_SFR_OHCIICR_USB_SUSP(x) BIT(8 + (x)) +#define SAMA7_SFR_OHCIICR_USB_SUSPEND GENMASK(10, 8) + +#define SAMA7_SFR_OHCIISR_RIS(x) BIT(x) + +#define SAMA7_SFR_WPMR_WPEN BIT(0) +#define SAMA7_SFR_WPMR_KEY 0x53465200 /* SFR in ASCII*/ +#define SAMA7_SFR_WPMR_WPKEY_MASK GENMASK(31, 8) + +#define SAMA7_SFR_WPSR_WPSRC_MASK GENMASK(23, 8) +#define SAMA7_SFR_WPSR_WPVS_MASK BIT(0) + +#define SAMA7_SFR_CAN_SRAM_UPPER(x) BIT(x) + +#define SAMA7_SFR_UTMI_RX_VBUS BIT(25) /* VBUS Valid bit */ +#define SAMA7_SFR_UTMI_RX_TX_PREEM_AMP_TUNE_1X BIT(23) /* TXPREEMPAMPTUNE 1x */ +#define SAMA7_SFR_UTMI_COMMONON BIT(3) /* PLL Common ON bit */ + +#define SAMA7_SFR_EHCIOHCI_PHYCLK BIT(1) /* Alternate PHY Clk */ + +#endif /* _LINUX_MFD_SYSCON_AT91_SAMA7_SFR_H */

In order to have USB functionality, drivers for SAMA7's USB 2.0 PHY's have been added. There is one driver for UTMI clock's SFR and RESET required functionalities and one for its three possible subclocks of the phy's themselves. In order for this layout to properly work in conjunction with CCF and DT, the former driver will also act as a clock provider for the three phy's with the help of a custom hook into the driver's of_xlate method.

Signed-off-by: Sergiu Moga sergiu.moga@microchip.com Tested-by: Mihai Sain mihai.sain@microchip.com ---

v1 -> v3: - No change

drivers/phy/Kconfig | 10 ++ drivers/phy/Makefile | 1 + drivers/phy/phy-sama7-usb.c | 92 ++++++++++++++ drivers/phy/phy-sama7-utmi-clk.c | 202 +++++++++++++++++++++++++++++++ 4 files changed, 305 insertions(+) create mode 100644 drivers/phy/phy-sama7-usb.c create mode 100644 drivers/phy/phy-sama7-utmi-clk.c

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index cf4d5908d7..9fbb956783 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -281,6 +281,16 @@ config PHY_XILINX_ZYNQMP Enable this to support ZynqMP High Speed Gigabit Transceiver that is part of ZynqMP SoC.

+config PHY_MICROCHIP_SAMA7_USB + tristate "Microchip SAMA7 USB 2.0 PHY" + depends on PHY && ARCH_AT91 + help + Enable this to support SAMA7 USB 2.0 PHY. + + The USB 2.0 PHY integrates high-speed, full-speed and low-speed + termination and signal switching. With a single resistor, it + requires minimal external components. + source "drivers/phy/rockchip/Kconfig" source "drivers/phy/cadence/Kconfig" source "drivers/phy/ti/Kconfig" diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index a3b9f3c5b1..9d50affd47 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -38,6 +38,7 @@ obj-$(CONFIG_PHY_MTK_TPHY) += phy-mtk-tphy.o obj-$(CONFIG_PHY_NPCM_USB) += phy-npcm-usb.o obj-$(CONFIG_PHY_IMX8MQ_USB) += phy-imx8mq-usb.o obj-$(CONFIG_PHY_XILINX_ZYNQMP) += phy-zynqmp.o +obj-$(CONFIG_PHY_MICROCHIP_SAMA7_USB) += phy-sama7-utmi-clk.o phy-sama7-usb.o obj-y += cadence/ obj-y += ti/ obj-y += qcom/ diff --git a/drivers/phy/phy-sama7-usb.c b/drivers/phy/phy-sama7-usb.c new file mode 100644 index 0000000000..b6fe40ecc1 --- /dev/null +++ b/drivers/phy/phy-sama7-usb.c @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Support for Atmel/Microchip USB PHY's. + * + * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries + * + * Author: Sergiu Moga sergiu.moga@microchip.com + */ + +#include <clk.h> +#include <dm.h> +#include <generic-phy.h> +#include <syscon.h> +#include <regmap.h> +#include <mach/sama7-sfr.h> + +struct sama7_usb_phy { + struct clk *uclk; + struct regmap *sfr; + int port; +}; + +int sama7_usb_phy_init(struct phy *phy) +{ + struct sama7_usb_phy *sama7_phy = dev_get_priv(phy->dev); + int port = sama7_phy->port; + + regmap_update_bits(sama7_phy->sfr, SAMA7_SFR_UTMI0R(port), + SAMA7_SFR_UTMI_RX_TX_PREEM_AMP_TUNE_1X, + SAMA7_SFR_UTMI_RX_TX_PREEM_AMP_TUNE_1X); + + regmap_update_bits(sama7_phy->sfr, SAMA7_SFR_UTMI0R(port), + SAMA7_SFR_UTMI_RX_VBUS, + SAMA7_SFR_UTMI_RX_VBUS); + + return 0; +} + +int sama7_phy_power_on(struct phy *phy) +{ + struct sama7_usb_phy *sama7_phy = dev_get_priv(phy->dev); + + clk_prepare_enable(sama7_phy->uclk); + + return 0; +} + +int sama7_phy_power_off(struct phy *phy) +{ + struct sama7_usb_phy *sama7_phy = dev_get_priv(phy->dev); + + clk_disable_unprepare(sama7_phy->uclk); + + return 0; +} + +int sama7_usb_phy_probe(struct udevice *dev) +{ + struct sama7_usb_phy *sama7_phy = dev_get_priv(dev); + + sama7_phy->uclk = devm_clk_get(dev, "utmi_clk"); + if (IS_ERR(sama7_phy->uclk)) + return PTR_ERR(sama7_phy->uclk); + + sama7_phy->sfr = syscon_regmap_lookup_by_phandle(dev, "sfr-phandle"); + if (IS_ERR(sama7_phy->sfr)) { + sama7_phy->sfr = NULL; + return PTR_ERR(sama7_phy->sfr); + } + + return dev_read_u32(dev, "reg", &sama7_phy->port); +} + +static const struct phy_ops sama7_usb_phy_ops = { + .init = sama7_usb_phy_init, + .power_on = sama7_phy_power_on, + .power_off = sama7_phy_power_off, +}; + +static const struct udevice_id sama7_usb_phy_of_match[] = { + { .compatible = "microchip,sama7g5-usb-phy", }, + { }, +}; + +U_BOOT_DRIVER(sama7_usb_phy_driver) = { + .name = "sama7-usb-phy", + .id = UCLASS_PHY, + .of_match = sama7_usb_phy_of_match, + .ops = &sama7_usb_phy_ops, + .probe = sama7_usb_phy_probe, + .priv_auto = sizeof(struct sama7_usb_phy), +}; diff --git a/drivers/phy/phy-sama7-utmi-clk.c b/drivers/phy/phy-sama7-utmi-clk.c new file mode 100644 index 0000000000..ab9fddccf6 --- /dev/null +++ b/drivers/phy/phy-sama7-utmi-clk.c @@ -0,0 +1,202 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Support for Atmel/Microchip USB PHY's. + * + * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries + * + * Author: Sergiu Moga sergiu.moga@microchip.com + */ + +#include <dm.h> +#include <linux/clk-provider.h> +#include <syscon.h> +#include <regmap.h> +#include <mach/sama7-sfr.h> +#include <reset.h> +#include <dt-bindings/clk/at91.h> + +struct sama7_utmi_clk { + struct clk uclk; + struct regmap *regmap_sfr; + struct reset_ctl *reset; + u8 id; +}; + +#define to_sama7_utmi_clk(_c) container_of(_c, struct sama7_utmi_clk, uclk) + +#define UBOOT_DM_CLK_MICROCHIP_SAMA7G5_UTMI "sama7-utmi-clk" +#define UBOOT_DM_MICROCHIP_SAMA7G5_UTMI "sama7-utmi" + +#define AT91_TO_CLK_ID(_t, _i) (((_t) << 8) | ((_i) & 0xff)) + +/* + * UTMI clock description + * @n: clock name + * @p: clock parent name + * @id: clock id in RSTC_GRSTR + */ +static struct { + const char *n; + const char *p; + u8 id; +} sama7_utmick[] = { + { .n = "utmi1", .p = "utmick", .id = 0, }, + { .n = "utmi2", .p = "utmi1", .id = 1, }, + { .n = "utmi3", .p = "utmi1", .id = 2, }, +}; + +static int sama7_utmi_clk_enable(struct clk *clk) +{ + int ret; + + struct sama7_utmi_clk *utmi = to_sama7_utmi_clk(clk); + u8 id = utmi->id; + + ret = reset_assert(utmi->reset); + if (ret) + return ret; + + ret = regmap_update_bits(utmi->regmap_sfr, SAMA7_SFR_UTMI0R(id), + SAMA7_SFR_UTMI_COMMONON, 0); + if (ret < 0) + return ret; + + ret = reset_deassert(utmi->reset); + if (ret) + return ret; + + /* Datasheet states a minimum of 45 us before any USB operation */ + udelay(50); + + return 0; +} + +static int sama7_utmi_clk_disable(struct clk *clk) +{ + int ret; + struct sama7_utmi_clk *utmi = to_sama7_utmi_clk(clk); + u8 id = utmi->id; + + ret = reset_assert(utmi->reset); + if (ret) + return ret; + + regmap_update_bits(utmi->regmap_sfr, SAMA7_SFR_UTMI0R(id), + SAMA7_SFR_UTMI_COMMONON, SAMA7_SFR_UTMI_COMMONON); + + return 0; +} + +static ulong sama7_utmi_clk_get_rate(struct clk *clk) +{ + /* Return utmick's rate: 480MHz */ + return clk_get_parent_rate(clk); +} + +static const struct clk_ops sama7_utmi_clk_ops = { + .enable = sama7_utmi_clk_enable, + .disable = sama7_utmi_clk_disable, + .get_rate = sama7_utmi_clk_get_rate, +}; + +static struct clk* +sama7_utmi_clk_register(struct regmap *regmap_sfr, struct reset_ctl *reset, + const char *name, const char *parent_name, u8 id) +{ + struct clk *clk; + struct sama7_utmi_clk *utmi_clk; + int ret; + + if (!regmap_sfr || !reset || !name || !parent_name) + return ERR_PTR(-EINVAL); + + utmi_clk = kzalloc(sizeof(*utmi_clk), GFP_KERNEL); + if (!utmi_clk) + return ERR_PTR(-ENOMEM); + + utmi_clk->reset = reset; + utmi_clk->regmap_sfr = regmap_sfr; + utmi_clk->id = id; + + clk = &utmi_clk->uclk; + ret = clk_register(clk, UBOOT_DM_CLK_MICROCHIP_SAMA7G5_UTMI, + name, parent_name); + if (ret) { + kfree(utmi_clk); + clk = ERR_PTR(ret); + } + + clk_dm(AT91_TO_CLK_ID(UTMI, utmi_clk->id), clk); + + return clk; +} + +static int sama7_utmi_probe(struct udevice *dev) +{ + struct clk *utmi_parent_clk, *utmi_clk; + struct regmap *regmap_sfr; + struct reset_ctl *phy_reset; + int i; + char name[16]; + + utmi_parent_clk = devm_clk_get(dev, "utmi_clk"); + if (IS_ERR(utmi_parent_clk)) + return PTR_ERR(utmi_parent_clk); + + regmap_sfr = syscon_regmap_lookup_by_phandle(dev, "sfr-phandle"); + if (IS_ERR(regmap_sfr)) + return PTR_ERR(regmap_sfr); + + for (i = 0; i < ARRAY_SIZE(sama7_utmick); i++) { + snprintf(name, sizeof(name), "usb%d_reset", i); + phy_reset = devm_reset_control_get(dev, name); + if (IS_ERR(phy_reset)) + return PTR_ERR(phy_reset); + + utmi_clk = sama7_utmi_clk_register(regmap_sfr, phy_reset, + sama7_utmick[i].n, + sama7_utmick[i].p, + sama7_utmick[i].id); + if (IS_ERR(utmi_clk)) + return PTR_ERR(utmi_clk); + } + + return 0; +}; + +static const struct udevice_id sama7_utmi_clk_dt_ids[] = { + { .compatible = "microchip,sama7g5-utmi-clk", }, + { /* sentinel */}, +}; + +static int utmi_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args) +{ + if (args->args_count != 1) { + debug("UTMI: clk: Invalid args_count: %d\n", args->args_count); + return -EINVAL; + } + + clk->id = AT91_TO_CLK_ID(UTMI, args->args[0]); + + return 0; +} + +static const struct clk_ops sama7_utmi_ops = { + .of_xlate = utmi_clk_of_xlate, + .enable = ccf_clk_enable, + .disable = ccf_clk_disable, +}; + +U_BOOT_DRIVER(microhip_sama7g5_utmi_clk) = { + .name = UBOOT_DM_CLK_MICROCHIP_SAMA7G5_UTMI, + .id = UCLASS_CLK, + .ops = &sama7_utmi_clk_ops, +}; + +U_BOOT_DRIVER(microhip_sama7g5_utmi) = { + .name = UBOOT_DM_MICROCHIP_SAMA7G5_UTMI, + .of_match = sama7_utmi_clk_dt_ids, + .id = UCLASS_CLK, + .ops = &sama7_utmi_ops, + .probe = sama7_utmi_probe, +};

Add the ability to enable/disable whatever USB PHY's are passed to the AT91 OHCI driver through DT.

Signed-off-by: Sergiu Moga sergiu.moga@microchip.com Tested-by: Mihai Sain mihai.sain@microchip.com ---

v1 -> v3: - No change

drivers/usb/host/ohci-at91.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 8a10a29564..4b1aff4127 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -74,6 +74,10 @@ int usb_cpu_init_fail(void) #include <usb.h> #include "ohci.h"

+#if CONFIG_IS_ENABLED(PHY_MICROCHIP_SAMA7_USB) +#include <generic-phy.h> +#endif + #define AT91_MAX_USBH_PORTS 3

#define at91_for_each_port(index) \ @@ -90,6 +94,10 @@ struct ohci_at91_priv { struct clk *fclk; struct clk *hclk; bool clocked; + +#if CONFIG_IS_ENABLED(PHY_MICROCHIP_SAMA7_USB) + struct phy phy[AT91_MAX_USBH_PORTS]; +#endif };

static void at91_start_clock(struct ohci_at91_priv *ohci_at91) @@ -97,6 +105,13 @@ static void at91_start_clock(struct ohci_at91_priv *ohci_at91) if (ohci_at91->clocked) return;

+#if CONFIG_IS_ENABLED(PHY_MICROCHIP_SAMA7_USB) + int i; + + at91_for_each_port(i) + generic_phy_power_on(&ohci_at91->phy[i]); +#endif + clk_set_rate(ohci_at91->fclk, 48000000); clk_prepare_enable(ohci_at91->hclk); clk_prepare_enable(ohci_at91->iclk); @@ -109,6 +124,13 @@ static void at91_stop_clock(struct ohci_at91_priv *ohci_at91) if (!ohci_at91->clocked) return;

+#if CONFIG_IS_ENABLED(PHY_MICROCHIP_SAMA7_USB) + int i; + + at91_for_each_port(i) + generic_phy_power_off(&ohci_at91->phy[i]); +#endif + clk_disable_unprepare(ohci_at91->fclk); clk_disable_unprepare(ohci_at91->iclk); clk_disable_unprepare(ohci_at91->hclk); @@ -214,6 +236,14 @@ static int ohci_atmel_probe(struct udevice *dev) goto fail; }

+#if CONFIG_IS_ENABLED(PHY_MICROCHIP_SAMA7_USB) + at91_for_each_port(i) { + generic_phy_get_by_index(dev, i, &ohci_at91->phy[i]); + generic_phy_init(&ohci_at91->phy[i]); + generic_phy_configure(&ohci_at91->phy[i], NULL); + } +#endif + at91_start_hc(dev);

return ohci_register(dev, regs); @@ -228,6 +258,7 @@ fail:

static const struct udevice_id ohci_usb_ids[] = { { .compatible = "atmel,at91rm9200-ohci", }, + { .compatible = "microchip,sama7g5-ohci", }, { } };

Add the pinctrl nodes required by the USB related DT nodes.

Signed-off-by: Sergiu Moga sergiu.moga@microchip.com ---

v1 -> v3: - No change

arch/arm/dts/at91-sama5d27_wlsom1_ek.dts | 25 ++++++++++++++++++++++++ 1 file changed, 25 insertions(+)

diff --git a/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts b/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts index eec183d5de..6d4b35ea96 100644 --- a/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts +++ b/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts @@ -143,7 +143,32 @@ pinmux = <PIN_PC9__GPIO>; bias-pull-up; }; + + pinctrl_usb_default: usb_default { + pinmux = <PIN_PA10__GPIO>; + bias-disable; + }; + + pinctrl_usba_vbus: usba_vbus { + pinmux = <PIN_PA16__GPIO>; + bias-disable; + }; }; }; }; }; + +&usb1 { + num-ports = <3>; + atmel,vbus-gpio = <0 + &pioA PIN_PA10 GPIO_ACTIVE_HIGH + 0 + >; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb_default>; + status = "okay"; +}; + +&usb2 { + status = "okay"; +};

Enable the OHCI and EHCI related configs required in order to be able to use the USB command properly.

Signed-off-by: Sergiu Moga sergiu.moga@microchip.com ---

v1 -> v2: - No change

v2 -> v3: - Also add CONFIG_RESET_AT91 to enable RSTC

configs/sama5d27_giantboard_defconfig | 4 ++++ configs/sama5d27_som1_ek_mmc1_defconfig | 4 ++++ configs/sama5d27_som1_ek_mmc_defconfig | 4 ++++ configs/sama5d27_som1_ek_qspiflash_defconfig | 4 ++++ configs/sama5d27_wlsom1_ek_mmc_defconfig | 5 +++++ configs/sama5d27_wlsom1_ek_qspiflash_defconfig | 4 ++++ configs/sama5d2_icp_mmc_defconfig | 8 ++++++++ configs/sama5d2_icp_qspiflash_defconfig | 4 ++++ configs/sama5d2_ptc_ek_mmc_defconfig | 4 ++++ configs/sama5d2_ptc_ek_nandflash_defconfig | 4 ++++ configs/sama5d2_xplained_emmc_defconfig | 4 ++++ configs/sama5d2_xplained_mmc_defconfig | 4 ++++ configs/sama5d2_xplained_qspiflash_defconfig | 4 ++++ configs/sama5d2_xplained_spiflash_defconfig | 4 ++++ 14 files changed, 61 insertions(+)

diff --git a/configs/sama5d27_giantboard_defconfig b/configs/sama5d27_giantboard_defconfig index d08a42d911..d33b886116 100644 --- a/configs/sama5d27_giantboard_defconfig +++ b/configs/sama5d27_giantboard_defconfig @@ -81,6 +81,8 @@ CONFIG_DM_SPI_FLASH=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -95,6 +97,8 @@ CONFIG_ATMEL_PIT_TIMER=y CONFIG_SPL_ATMEL_PIT_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d27_som1_ek_mmc1_defconfig b/configs/sama5d27_som1_ek_mmc1_defconfig index 93ae714b62..a1f17e0f16 100644 --- a/configs/sama5d27_som1_ek_mmc1_defconfig +++ b/configs/sama5d27_som1_ek_mmc1_defconfig @@ -93,6 +93,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -108,6 +110,8 @@ CONFIG_ATMEL_PIT_TIMER=y CONFIG_SPL_ATMEL_PIT_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d27_som1_ek_mmc_defconfig b/configs/sama5d27_som1_ek_mmc_defconfig index 5096366de7..67deb04af2 100644 --- a/configs/sama5d27_som1_ek_mmc_defconfig +++ b/configs/sama5d27_som1_ek_mmc_defconfig @@ -93,6 +93,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -108,6 +110,8 @@ CONFIG_ATMEL_PIT_TIMER=y CONFIG_SPL_ATMEL_PIT_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d27_som1_ek_qspiflash_defconfig b/configs/sama5d27_som1_ek_qspiflash_defconfig index d7c7f42c93..265c1df32c 100644 --- a/configs/sama5d27_som1_ek_qspiflash_defconfig +++ b/configs/sama5d27_som1_ek_qspiflash_defconfig @@ -92,6 +92,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -107,6 +109,8 @@ CONFIG_ATMEL_PIT_TIMER=y CONFIG_SPL_ATMEL_PIT_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d27_wlsom1_ek_mmc_defconfig b/configs/sama5d27_wlsom1_ek_mmc_defconfig index 7634a6c68f..3aa2dfda8f 100644 --- a/configs/sama5d27_wlsom1_ek_mmc_defconfig +++ b/configs/sama5d27_wlsom1_ek_mmc_defconfig @@ -56,6 +56,7 @@ CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y # CONFIG_CMD_LOADS is not set CONFIG_CMD_MMC=y +CONFIG_CMD_USB=y CONFIG_CMD_DHCP=y CONFIG_BOOTP_BOOTFILESIZE=y CONFIG_CMD_MII=y @@ -98,6 +99,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -113,6 +116,8 @@ CONFIG_ATMEL_PIT_TIMER=y CONFIG_SPL_ATMEL_PIT_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d27_wlsom1_ek_qspiflash_defconfig b/configs/sama5d27_wlsom1_ek_qspiflash_defconfig index bb018d4c69..9a5b98df92 100644 --- a/configs/sama5d27_wlsom1_ek_qspiflash_defconfig +++ b/configs/sama5d27_wlsom1_ek_qspiflash_defconfig @@ -102,6 +102,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -117,6 +119,8 @@ CONFIG_ATMEL_PIT_TIMER=y CONFIG_SPL_ATMEL_PIT_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d2_icp_mmc_defconfig b/configs/sama5d2_icp_mmc_defconfig index 51f7104b35..f7646cce50 100644 --- a/configs/sama5d2_icp_mmc_defconfig +++ b/configs/sama5d2_icp_mmc_defconfig @@ -58,6 +58,7 @@ CONFIG_CMD_I2C=y # CONFIG_CMD_LOADS is not set CONFIG_CMD_MMC=y CONFIG_CMD_SF_TEST=y +CONFIG_CMD_USB=y CONFIG_CMD_DHCP=y CONFIG_BOOTP_BOOTFILESIZE=y CONFIG_CMD_PING=y @@ -97,6 +98,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -110,5 +113,10 @@ CONFIG_TIMER=y CONFIG_SPL_TIMER=y CONFIG_ATMEL_TCB_TIMER=y CONFIG_SPL_ATMEL_TCB_TIMER=y +CONFIG_USB=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y +CONFIG_USB_STORAGE=y CONFIG_OF_LIBFDT_OVERLAY=y # CONFIG_EFI_LOADER_HII is not set diff --git a/configs/sama5d2_icp_qspiflash_defconfig b/configs/sama5d2_icp_qspiflash_defconfig index ab7308848f..b36dfb3bdb 100644 --- a/configs/sama5d2_icp_qspiflash_defconfig +++ b/configs/sama5d2_icp_qspiflash_defconfig @@ -83,6 +83,8 @@ CONFIG_SPI_FLASH_SST=y CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -95,6 +97,8 @@ CONFIG_TIMER=y CONFIG_ATMEL_PIT_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d2_ptc_ek_mmc_defconfig b/configs/sama5d2_ptc_ek_mmc_defconfig index 8ae20d5a76..c0cdd48dc0 100644 --- a/configs/sama5d2_ptc_ek_mmc_defconfig +++ b/configs/sama5d2_ptc_ek_mmc_defconfig @@ -68,6 +68,8 @@ CONFIG_SYS_NAND_ONFI_DETECTION=y CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -77,6 +79,8 @@ CONFIG_TIMER=y CONFIG_ATMEL_TCB_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_W1=y CONFIG_W1_GPIO=y diff --git a/configs/sama5d2_ptc_ek_nandflash_defconfig b/configs/sama5d2_ptc_ek_nandflash_defconfig index f987278101..28f8c676c0 100644 --- a/configs/sama5d2_ptc_ek_nandflash_defconfig +++ b/configs/sama5d2_ptc_ek_nandflash_defconfig @@ -68,6 +68,8 @@ CONFIG_SYS_NAND_ONFI_DETECTION=y CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -77,6 +79,8 @@ CONFIG_TIMER=y CONFIG_ATMEL_TCB_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_W1=y CONFIG_W1_GPIO=y diff --git a/configs/sama5d2_xplained_emmc_defconfig b/configs/sama5d2_xplained_emmc_defconfig index 9509091c4e..fd67f0d09b 100644 --- a/configs/sama5d2_xplained_emmc_defconfig +++ b/configs/sama5d2_xplained_emmc_defconfig @@ -92,6 +92,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -107,6 +109,8 @@ CONFIG_ATMEL_TCB_TIMER=y CONFIG_SPL_ATMEL_TCB_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d2_xplained_mmc_defconfig b/configs/sama5d2_xplained_mmc_defconfig index fe267f33e2..e7a79afc4c 100644 --- a/configs/sama5d2_xplained_mmc_defconfig +++ b/configs/sama5d2_xplained_mmc_defconfig @@ -94,6 +94,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -109,6 +111,8 @@ CONFIG_ATMEL_TCB_TIMER=y CONFIG_SPL_ATMEL_TCB_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d2_xplained_qspiflash_defconfig b/configs/sama5d2_xplained_qspiflash_defconfig index 7fc5dad631..17d05b44b0 100644 --- a/configs/sama5d2_xplained_qspiflash_defconfig +++ b/configs/sama5d2_xplained_qspiflash_defconfig @@ -94,6 +94,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -109,6 +111,8 @@ CONFIG_ATMEL_TCB_TIMER=y CONFIG_SPL_ATMEL_TCB_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y diff --git a/configs/sama5d2_xplained_spiflash_defconfig b/configs/sama5d2_xplained_spiflash_defconfig index 95e2b449f9..79b18604d4 100644 --- a/configs/sama5d2_xplained_spiflash_defconfig +++ b/configs/sama5d2_xplained_spiflash_defconfig @@ -98,6 +98,8 @@ CONFIG_MACB=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_AT91PIO4=y +CONFIG_DM_RESET=y +CONFIG_RESET_AT91=y CONFIG_DM_SERIAL=y CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y @@ -113,6 +115,8 @@ CONFIG_ATMEL_TCB_TIMER=y CONFIG_SPL_ATMEL_TCB_TIMER=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_ATMEL=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_ATMEL_USBA=y

From: Cristian Birsan cristian.birsan@microchip.com

The `ohci_register` function expects that the OHCI driver's priv is a struct whose first field is of type `ohci_t`. The original conversion to DM did not have it and this inconsistency revealed itself whenever U-Boot required multiple memory allocations resulting in a memory overwrite of where this field would supposedly be.

Thus, add this missing field and automatically increase the implicit size of the driver's priv to avoid whatever future memory allocations may take place from overwriting it.

Fixes: de1cf0a9c6 ("drivers: usb: ohci-at91: Enable OHCI functionality and register into DM") Signed-off-by: Cristian Birsan cristian.birsan@microchip.com Signed-off-by: Sergiu Moga sergiu.moga@microchip.com Tested-by: Mihai Sain mihai.sain@microchip.com ---

v1 -> v3: - No change

drivers/usb/host/ohci-at91.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 4b1aff4127..0791769026 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -90,6 +90,7 @@ struct at91_usbh_data { };

struct ohci_at91_priv { + ohci_t ohci; struct clk *iclk; struct clk *fclk; struct clk *hclk;