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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
- * (C) Copyright 2018 Neil Armstrong <narmstrong@baylibre.com>
- */
- #include <common.h>
- #include <init.h>
- #include <net.h>
- #include <asm/arch/boot.h>
- #include <asm/arch/eth.h>
- #include <asm/arch/axg.h>
- #include <asm/arch/mem.h>
- #include <asm/io.h>
- #include <asm/armv8/mmu.h>
- #include <linux/sizes.h>
- #include <usb.h>
- #include <linux/usb/otg.h>
- #include <asm/arch/usb-gx.h>
- #include <usb/dwc2_udc.h>
- #include <clk.h>
- #include <phy.h>
- DECLARE_GLOBAL_DATA_PTR;
- int meson_get_boot_device(void)
- {
- return readl(AXG_AO_SEC_GP_CFG0) & AXG_AO_BOOT_DEVICE;
- }
- /* Configure the reserved memory zones exported by the secure registers
- * into EFI and DTB reserved memory entries.
- */
- void meson_init_reserved_memory(void *fdt)
- {
- u64 bl31_size, bl31_start;
- u64 bl32_size, bl32_start;
- u32 reg;
- /*
- * Get ARM Trusted Firmware reserved memory zones in :
- * - AO_SEC_GP_CFG3: bl32 & bl31 size in KiB, can be 0
- * - AO_SEC_GP_CFG5: bl31 physical start address, can be NULL
- * - AO_SEC_GP_CFG4: bl32 physical start address, can be NULL
- */
- reg = readl(AXG_AO_SEC_GP_CFG3);
- bl31_size = ((reg & AXG_AO_BL31_RSVMEM_SIZE_MASK)
- >> AXG_AO_BL31_RSVMEM_SIZE_SHIFT) * SZ_1K;
- bl32_size = (reg & AXG_AO_BL32_RSVMEM_SIZE_MASK) * SZ_1K;
- bl31_start = readl(AXG_AO_SEC_GP_CFG5);
- bl32_start = readl(AXG_AO_SEC_GP_CFG4);
- /* Add BL31 reserved zone */
- if (bl31_start && bl31_size)
- meson_board_add_reserved_memory(fdt, bl31_start, bl31_size);
- /* Add BL32 reserved zone */
- if (bl32_start && bl32_size)
- meson_board_add_reserved_memory(fdt, bl32_start, bl32_size);
- }
- phys_size_t get_effective_memsize(void)
- {
- /* Size is reported in MiB, convert it in bytes */
- return ((readl(AXG_AO_SEC_GP_CFG0) & AXG_AO_MEM_SIZE_MASK)
- >> AXG_AO_MEM_SIZE_SHIFT) * SZ_1M;
- }
- static struct mm_region axg_mem_map[] = {
- {
- .virt = 0x0UL,
- .phys = 0x0UL,
- .size = 0x80000000UL,
- .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
- PTE_BLOCK_INNER_SHARE
- }, {
- .virt = 0xf0000000UL,
- .phys = 0xf0000000UL,
- .size = 0x10000000UL,
- .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
- PTE_BLOCK_NON_SHARE |
- PTE_BLOCK_PXN | PTE_BLOCK_UXN
- }, {
- /* List terminator */
- 0,
- }
- };
- struct mm_region *mem_map = axg_mem_map;
- /* Configure the Ethernet MAC with the requested interface mode
- * with some optional flags.
- */
- void meson_eth_init(phy_interface_t mode, unsigned int flags)
- {
- switch (mode) {
- case PHY_INTERFACE_MODE_RGMII:
- case PHY_INTERFACE_MODE_RGMII_ID:
- case PHY_INTERFACE_MODE_RGMII_RXID:
- case PHY_INTERFACE_MODE_RGMII_TXID:
- /* Set RGMII mode */
- setbits_le32(AXG_ETH_REG_0, AXG_ETH_REG_0_PHY_INTF_RGMII |
- AXG_ETH_REG_0_TX_PHASE(1) |
- AXG_ETH_REG_0_TX_RATIO(4) |
- AXG_ETH_REG_0_PHY_CLK_EN |
- AXG_ETH_REG_0_CLK_EN);
- break;
- case PHY_INTERFACE_MODE_RMII:
- /* Set RMII mode */
- out_le32(AXG_ETH_REG_0, AXG_ETH_REG_0_PHY_INTF_RMII |
- AXG_ETH_REG_0_INVERT_RMII_CLK |
- AXG_ETH_REG_0_CLK_EN);
- break;
- default:
- printf("Invalid Ethernet interface mode\n");
- return;
- }
- /* Enable power gate */
- clrbits_le32(AXG_MEM_PD_REG_0, AXG_MEM_PD_REG_0_ETH_MASK);
- }
- #if CONFIG_IS_ENABLED(USB_DWC3_MESON_GXL) && \
- CONFIG_IS_ENABLED(USB_GADGET_DWC2_OTG)
- static struct dwc2_plat_otg_data meson_gx_dwc2_data;
- int board_usb_init(int index, enum usb_init_type init)
- {
- struct fdtdec_phandle_args args;
- const void *blob = gd->fdt_blob;
- int node, dwc2_node;
- struct udevice *dev, *clk_dev;
- struct clk clk;
- int ret;
- /* find the usb glue node */
- node = fdt_node_offset_by_compatible(blob, -1,
- "amlogic,meson-gxl-usb-ctrl");
- if (node < 0) {
- debug("Not found usb-control node\n");
- return -ENODEV;
- }
- if (!fdtdec_get_is_enabled(blob, node)) {
- debug("usb is disabled in the device tree\n");
- return -ENODEV;
- }
- ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
- if (ret) {
- debug("Not found usb-control device\n");
- return ret;
- }
- /* find the dwc2 node */
- dwc2_node = fdt_node_offset_by_compatible(blob, node,
- "amlogic,meson-g12a-usb");
- if (dwc2_node < 0) {
- debug("Not found dwc2 node\n");
- return -ENODEV;
- }
- if (!fdtdec_get_is_enabled(blob, dwc2_node)) {
- debug("dwc2 is disabled in the device tree\n");
- return -ENODEV;
- }
- meson_gx_dwc2_data.regs_otg = fdtdec_get_addr(blob, dwc2_node, "reg");
- if (meson_gx_dwc2_data.regs_otg == FDT_ADDR_T_NONE) {
- debug("usbotg: can't get base address\n");
- return -ENODATA;
- }
- /* Enable clock */
- ret = fdtdec_parse_phandle_with_args(blob, dwc2_node, "clocks",
- "#clock-cells", 0, 0, &args);
- if (ret) {
- debug("usbotg has no clocks defined in the device tree\n");
- return ret;
- }
- ret = uclass_get_device_by_of_offset(UCLASS_CLK, args.node, &clk_dev);
- if (ret)
- return ret;
- if (args.args_count != 1) {
- debug("Can't find clock ID in the device tree\n");
- return -ENODATA;
- }
- clk.dev = clk_dev;
- clk.id = args.args[0];
- ret = clk_enable(&clk);
- if (ret) {
- debug("Failed to enable usbotg clock\n");
- return ret;
- }
- meson_gx_dwc2_data.rx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
- "g-rx-fifo-size", 0);
- meson_gx_dwc2_data.np_tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
- "g-np-tx-fifo-size", 0);
- meson_gx_dwc2_data.tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
- "g-tx-fifo-size", 0);
- /* Switch to peripheral mode */
- ret = dwc3_meson_gxl_force_mode(dev, USB_DR_MODE_PERIPHERAL);
- if (ret)
- return ret;
- return dwc2_udc_probe(&meson_gx_dwc2_data);
- }
- int board_usb_cleanup(int index, enum usb_init_type init)
- {
- const void *blob = gd->fdt_blob;
- struct udevice *dev;
- int node;
- int ret;
- /* find the usb glue node */
- node = fdt_node_offset_by_compatible(blob, -1,
- "amlogic,meson-gxl-usb-ctrl");
- if (node < 0) {
- debug("Not found usb-control node\n");
- return -ENODEV;
- }
- if (!fdtdec_get_is_enabled(blob, node))
- return -ENODEV;
- ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
- if (ret)
- return ret;
- /* Switch to OTG mode */
- ret = dwc3_meson_gxl_force_mode(dev, USB_DR_MODE_HOST);
- if (ret)
- return ret;
- return 0;
- }
- #endif
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