sunxi: Move usb-controller init code out of ehci-sunxi.c for reuse for otg
Most of the usb-controller init code found in ehci-sunxi.c also is necessary
to init the otg usb controller, so move it to a common place.
While at it also update various #ifdefs / defines for sun8i support.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/drivers/usb/host/ehci-sunxi.c b/drivers/usb/host/ehci-sunxi.c
index cc9a8fa..eda9f69 100644
--- a/drivers/usb/host/ehci-sunxi.c
+++ b/drivers/usb/host/ehci-sunxi.c
@@ -9,199 +9,23 @@
* SPDX-License-Identifier: GPL-2.0+
*/
-#include <asm/arch/clock.h>
-#include <asm/arch/cpu.h>
-#include <asm/gpio.h>
-#include <asm/io.h>
+#include <asm/arch/usbc.h>
#include <common.h>
#include "ehci.h"
-#define SUNXI_USB_PMU_IRQ_ENABLE 0x800
-#define SUNXI_USB_CSR 0x404
-#define SUNXI_USB_PASSBY_EN 1
-
-#define SUNXI_EHCI_AHB_ICHR8_EN (1 << 10)
-#define SUNXI_EHCI_AHB_INCR4_BURST_EN (1 << 9)
-#define SUNXI_EHCI_AHB_INCRX_ALIGN_EN (1 << 8)
-#define SUNXI_EHCI_ULPI_BYPASS_EN (1 << 0)
-
-static struct sunxi_ehci_hcd {
- struct usb_hcd *hcd;
- int usb_rst_mask;
- int ahb_clk_mask;
- int gpio_vbus;
- int irq;
- int id;
-} sunxi_echi_hcd[] = {
- {
- .usb_rst_mask = CCM_USB_CTRL_PHY1_RST | CCM_USB_CTRL_PHY1_CLK,
- .ahb_clk_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0,
-#ifndef CONFIG_MACH_SUN6I
- .irq = 39,
-#else
- .irq = 72,
-#endif
- .id = 1,
- },
-#if (CONFIG_USB_MAX_CONTROLLER_COUNT > 1)
- {
- .usb_rst_mask = CCM_USB_CTRL_PHY2_RST | CCM_USB_CTRL_PHY2_CLK,
- .ahb_clk_mask = 1 << AHB_GATE_OFFSET_USB_EHCI1,
-#ifndef CONFIG_MACH_SUN6I
- .irq = 40,
-#else
- .irq = 74,
-#endif
- .id = 2,
- }
-#endif
-};
-
-static int enabled_hcd_count;
-
-static void *get_io_base(int hcd_id)
-{
- switch (hcd_id) {
- case 0:
- return (void *)SUNXI_USB0_BASE;
- case 1:
- return (void *)SUNXI_USB1_BASE;
- case 2:
- return (void *)SUNXI_USB2_BASE;
- default:
- return NULL;
- }
-}
-
-static int get_vbus_gpio(int hcd_id)
-{
- switch (hcd_id) {
- case 1: return sunxi_name_to_gpio(CONFIG_USB1_VBUS_PIN);
- case 2: return sunxi_name_to_gpio(CONFIG_USB2_VBUS_PIN);
- }
- return -1;
-}
-
-static void usb_phy_write(struct sunxi_ehci_hcd *sunxi_ehci, int addr,
- int data, int len)
-{
- int j = 0, usbc_bit = 0;
- void *dest = get_io_base(0) + SUNXI_USB_CSR;
-
- usbc_bit = 1 << (sunxi_ehci->id * 2);
- for (j = 0; j < len; j++) {
- /* set the bit address to be written */
- clrbits_le32(dest, 0xff << 8);
- setbits_le32(dest, (addr + j) << 8);
-
- clrbits_le32(dest, usbc_bit);
- /* set data bit */
- if (data & 0x1)
- setbits_le32(dest, 1 << 7);
- else
- clrbits_le32(dest, 1 << 7);
-
- setbits_le32(dest, usbc_bit);
-
- clrbits_le32(dest, usbc_bit);
-
- data >>= 1;
- }
-}
-
-static void sunxi_usb_phy_init(struct sunxi_ehci_hcd *sunxi_ehci)
-{
- /* The following comments are machine
- * translated from Chinese, you have been warned!
- */
-
- /* adjust PHY's magnitude and rate */
- usb_phy_write(sunxi_ehci, 0x20, 0x14, 5);
-
- /* threshold adjustment disconnect */
-#if defined CONFIG_MACH_SUN4I || defined CONFIG_MACH_SUN6I
- usb_phy_write(sunxi_ehci, 0x2a, 3, 2);
-#else
- usb_phy_write(sunxi_ehci, 0x2a, 2, 2);
-#endif
-
- return;
-}
-
-static void sunxi_usb_passby(struct sunxi_ehci_hcd *sunxi_ehci, int enable)
-{
- unsigned long bits = 0;
- void *addr = get_io_base(sunxi_ehci->id) + SUNXI_USB_PMU_IRQ_ENABLE;
-
- bits = SUNXI_EHCI_AHB_ICHR8_EN |
- SUNXI_EHCI_AHB_INCR4_BURST_EN |
- SUNXI_EHCI_AHB_INCRX_ALIGN_EN |
- SUNXI_EHCI_ULPI_BYPASS_EN;
-
- if (enable)
- setbits_le32(addr, bits);
- else
- clrbits_le32(addr, bits);
-
- return;
-}
-
-static void sunxi_ehci_enable(struct sunxi_ehci_hcd *sunxi_ehci)
-{
- struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
-
- setbits_le32(&ccm->usb_clk_cfg, sunxi_ehci->usb_rst_mask);
- setbits_le32(&ccm->ahb_gate0, sunxi_ehci->ahb_clk_mask);
-#ifdef CONFIG_MACH_SUN6I
- setbits_le32(&ccm->ahb_reset0_cfg, sunxi_ehci->ahb_clk_mask);
-#endif
-
- sunxi_usb_phy_init(sunxi_ehci);
-
- sunxi_usb_passby(sunxi_ehci, SUNXI_USB_PASSBY_EN);
-
- if (sunxi_ehci->gpio_vbus != -1)
- gpio_direction_output(sunxi_ehci->gpio_vbus, 1);
-}
-
-static void sunxi_ehci_disable(struct sunxi_ehci_hcd *sunxi_ehci)
-{
- struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
-
- if (sunxi_ehci->gpio_vbus != -1)
- gpio_direction_output(sunxi_ehci->gpio_vbus, 0);
-
- sunxi_usb_passby(sunxi_ehci, !SUNXI_USB_PASSBY_EN);
-
-#ifdef CONFIG_MACH_SUN6I
- clrbits_le32(&ccm->ahb_reset0_cfg, sunxi_ehci->ahb_clk_mask);
-#endif
- clrbits_le32(&ccm->ahb_gate0, sunxi_ehci->ahb_clk_mask);
- clrbits_le32(&ccm->usb_clk_cfg, sunxi_ehci->usb_rst_mask);
-}
-
int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr,
struct ehci_hcor **hcor)
{
- struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
- struct sunxi_ehci_hcd *sunxi_ehci = &sunxi_echi_hcd[index];
int err;
- sunxi_ehci->gpio_vbus = get_vbus_gpio(sunxi_ehci->id);
+ err = sunxi_usbc_request_resources(index + 1);
+ if (err)
+ return err;
- /* enable common PHY only once */
- if (index == 0)
- setbits_le32(&ccm->usb_clk_cfg, CCM_USB_CTRL_PHYGATE);
+ sunxi_usbc_enable(index + 1);
+ sunxi_usbc_vbus_enable(index + 1);
- if (sunxi_ehci->gpio_vbus != -1) {
- err = gpio_request(sunxi_ehci->gpio_vbus, "ehci_vbus");
- if (err)
- return err;
- }
-
- sunxi_ehci_enable(sunxi_ehci);
-
- *hccr = get_io_base(sunxi_ehci->id);
+ *hccr = sunxi_usbc_get_io_base(index + 1);
*hcor = (struct ehci_hcor *)((uint32_t) *hccr
+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
@@ -210,30 +34,13 @@
(uint32_t)*hccr, (uint32_t)*hcor,
(uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
- enabled_hcd_count++;
-
return 0;
}
int ehci_hcd_stop(int index)
{
- struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
- struct sunxi_ehci_hcd *sunxi_ehci = &sunxi_echi_hcd[index];
- int err;
+ sunxi_usbc_vbus_disable(index + 1);
+ sunxi_usbc_disable(index + 1);
- sunxi_ehci_disable(sunxi_ehci);
-
- if (sunxi_ehci->gpio_vbus != -1) {
- err = gpio_free(sunxi_ehci->gpio_vbus);
- if (err)
- return err;
- }
-
- /* disable common PHY only once, for the last enabled hcd */
- if (enabled_hcd_count == 1)
- clrbits_le32(&ccm->usb_clk_cfg, CCM_USB_CTRL_PHYGATE);
-
- enabled_hcd_count--;
-
- return 0;
+ return sunxi_usbc_free_resources(index + 1);
}