Implements the dwc3 gadget driver support for LS1043 platform, and performs below operations: 1. Enables snooping support for DWC3 controller. 2. Enables cache coherency in LS1043 platform.
Signed-off-by: Rajat Srivastava rajat.srivastava@nxp.com Signed-off-by: Rajesh Bhagat rajesh.bhagat@nxp.com Reviewed-by: Lukasz Majewski l.majewski@samsung.com --- Changes in v3: - None
Changes in v2: - Moves DWC3 driver specific code to helper functions - Calls helper functions in SoC specific implementation
arch/arm/cpu/armv8/fsl-layerscape/soc.c | 93 ++++++++++++++++++++++ .../include/asm/arch-fsl-layerscape/immap_lsch2.h | 6 ++ 2 files changed, 99 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index 0fb5c7f..cc07524 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -17,6 +17,10 @@ #ifdef CONFIG_CHAIN_OF_TRUST #include <fsl_validate.h> #endif +#include <usb.h> +#include <dwc3-uboot.h> +#include <linux/usb/xhci-fsl.h> +
DECLARE_GLOBAL_DATA_PTR;
@@ -318,9 +322,18 @@ void fsl_lsch2_early_init_f(void) #if defined(CONFIG_FSL_QSPI) && !defined(CONFIG_QSPI_BOOT) out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL); #endif + /* Make SEC and USB reads and writes snoopable */ +#if defined(CONFIG_LS1043A) + setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP | + SCFG_SNPCNFGCR_SECWRSNP | SCFG_SNPCNFGCR_USB1RDSNP | + SCFG_SNPCNFGCR_USB1WRSNP | SCFG_SNPCNFGCR_USB2RDSNP | + SCFG_SNPCNFGCR_USB2WRSNP | SCFG_SNPCNFGCR_USB3RDSNP | + SCFG_SNPCNFGCR_USB3WRSNP); +#else /* Make SEC reads and writes snoopable */ setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP | SCFG_SNPCNFGCR_SECWRSNP); +#endif
/* * Enable snoop requests and DVM message requests for @@ -336,6 +349,86 @@ void fsl_lsch2_early_init_f(void) } #endif
+#ifdef CONFIG_USB_DWC3 + +#if defined(CONFIG_LS1043A) +static struct dwc3_device dwc3_device_data0 = { + .maximum_speed = USB_SPEED_HIGH, + .base = CONFIG_SYS_FSL_XHCI_USB1_ADDR, + .dr_mode = USB_DR_MODE_PERIPHERAL, + .index = 0, +}; + +static struct dwc3_device dwc3_device_data1 = { + .maximum_speed = USB_SPEED_HIGH, + .base = CONFIG_SYS_FSL_XHCI_USB2_ADDR, + .dr_mode = USB_DR_MODE_PERIPHERAL, + .index = 1, +}; + +static struct dwc3_device dwc3_device_data2 = { + .maximum_speed = USB_SPEED_HIGH, + .base = CONFIG_SYS_FSL_XHCI_USB3_ADDR, + .dr_mode = USB_DR_MODE_PERIPHERAL, + .index = 2, +}; + +int usb_gadget_handle_interrupts(int index) +{ + dwc3_uboot_handle_interrupt(index); + return 0; +} +#endif + +int board_usb_init(int index, enum usb_init_type init) +{ + switch (init) { + case USB_INIT_DEVICE: + switch (index) { +#if defined(CONFIG_LS1043A) + case 0: + dwc3_uboot_init(&dwc3_device_data0); + break; + case 1: + dwc3_uboot_init(&dwc3_device_data1); + break; + case 2: + dwc3_uboot_init(&dwc3_device_data2); + break; +#endif + default: + printf("Invalid Controller Index\n"); + return -1; + } +#if defined(CONFIG_LS1043A) + dwc3_core_incr_burst_enable(index, 0xf, 0xf); + dwc3_core_set_snooping(index, true); +#endif + break; + default: + break; + } + + return 0; +} + +int board_usb_cleanup(int index, enum usb_init_type init) +{ + switch (init) { + case USB_INIT_DEVICE: +#if defined(CONFIG_LS1043A) + dwc3_uboot_exit(index); +#endif + break; + default: + break; + } + return 0; +} +#endif + + + #ifdef CONFIG_BOARD_LATE_INIT int board_late_init(void) { diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h index 57b99d4..13ba1a6 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h @@ -328,6 +328,12 @@ struct ccsr_gur {
#define SCFG_SNPCNFGCR_SECRDSNP 0x80000000 #define SCFG_SNPCNFGCR_SECWRSNP 0x40000000 +#define SCFG_SNPCNFGCR_USB1RDSNP 0x00200000 +#define SCFG_SNPCNFGCR_USB1WRSNP 0x00100000 +#define SCFG_SNPCNFGCR_USB2RDSNP 0x00008000 +#define SCFG_SNPCNFGCR_USB2WRSNP 0x00010000 +#define SCFG_SNPCNFGCR_USB3RDSNP 0x00002000 +#define SCFG_SNPCNFGCR_USB3WRSNP 0x00004000
/* Supplemental Configuration Unit */ struct ccsr_scfg {