1 // SPDX-License-Identifier: GPL-2.0+
8 #include <asm/arch/boot.h>
9 #include <asm/arch/eth.h>
10 #include <asm/arch/g12a.h>
11 #include <asm/arch/mem.h>
13 #include <asm/armv8/mmu.h>
14 #include <linux/sizes.h>
16 #include <linux/usb/otg.h>
17 #include <asm/arch/usb.h>
18 #include <usb/dwc2_udc.h>
22 DECLARE_GLOBAL_DATA_PTR;
24 int meson_get_boot_device(void)
26 return readl(G12A_AO_SEC_GP_CFG0) & G12A_AO_BOOT_DEVICE;
29 /* Configure the reserved memory zones exported by the secure registers
30 * into EFI and DTB reserved memory entries.
32 void meson_init_reserved_memory(void *fdt)
34 u64 bl31_size, bl31_start;
35 u64 bl32_size, bl32_start;
39 * Get ARM Trusted Firmware reserved memory zones in :
40 * - AO_SEC_GP_CFG3: bl32 & bl31 size in KiB, can be 0
41 * - AO_SEC_GP_CFG5: bl31 physical start address, can be NULL
42 * - AO_SEC_GP_CFG4: bl32 physical start address, can be NULL
44 reg = readl(G12A_AO_SEC_GP_CFG3);
46 bl31_size = ((reg & G12A_AO_BL31_RSVMEM_SIZE_MASK)
47 >> G12A_AO_BL31_RSVMEM_SIZE_SHIFT) * SZ_1K;
48 bl32_size = (reg & G12A_AO_BL32_RSVMEM_SIZE_MASK) * SZ_1K;
50 bl31_start = readl(G12A_AO_SEC_GP_CFG5);
51 bl32_start = readl(G12A_AO_SEC_GP_CFG4);
53 /* Add BL31 reserved zone */
54 if (bl31_start && bl31_size)
55 meson_board_add_reserved_memory(fdt, bl31_start, bl31_size);
57 /* Add BL32 reserved zone */
58 if (bl32_start && bl32_size)
59 meson_board_add_reserved_memory(fdt, bl32_start, bl32_size);
62 phys_size_t get_effective_memsize(void)
64 /* Size is reported in MiB, convert it in bytes */
65 return ((readl(G12A_AO_SEC_GP_CFG0) & G12A_AO_MEM_SIZE_MASK)
66 >> G12A_AO_MEM_SIZE_SHIFT) * SZ_1M;
69 static struct mm_region g12a_mem_map[] = {
74 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
80 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
82 PTE_BLOCK_PXN | PTE_BLOCK_UXN
89 struct mm_region *mem_map = g12a_mem_map;
91 static void g12a_enable_external_mdio(void)
93 writel(0x0, ETH_PHY_CNTL2);
96 static void g12a_enable_internal_mdio(void)
98 /* Fire up the PHY PLL */
99 writel(0x29c0040a, ETH_PLL_CNTL0);
100 writel(0x927e0000, ETH_PLL_CNTL1);
101 writel(0xac5f49e5, ETH_PLL_CNTL2);
102 writel(0x00000000, ETH_PLL_CNTL3);
103 writel(0x00000000, ETH_PLL_CNTL4);
104 writel(0x20200000, ETH_PLL_CNTL5);
105 writel(0x0000c002, ETH_PLL_CNTL6);
106 writel(0x00000023, ETH_PLL_CNTL7);
107 writel(0x39c0040a, ETH_PLL_CNTL0);
108 writel(0x19c0040a, ETH_PLL_CNTL0);
110 /* Select the internal MDIO */
111 writel(0x33000180, ETH_PHY_CNTL0);
112 writel(0x00074043, ETH_PHY_CNTL1);
113 writel(0x00000260, ETH_PHY_CNTL2);
116 /* Configure the Ethernet MAC with the requested interface mode
117 * with some optional flags.
119 void meson_eth_init(phy_interface_t mode, unsigned int flags)
122 case PHY_INTERFACE_MODE_RGMII:
123 case PHY_INTERFACE_MODE_RGMII_ID:
124 case PHY_INTERFACE_MODE_RGMII_RXID:
125 case PHY_INTERFACE_MODE_RGMII_TXID:
127 setbits_le32(G12A_ETH_REG_0, G12A_ETH_REG_0_PHY_INTF_RGMII |
128 G12A_ETH_REG_0_TX_PHASE(1) |
129 G12A_ETH_REG_0_TX_RATIO(4) |
130 G12A_ETH_REG_0_PHY_CLK_EN |
131 G12A_ETH_REG_0_CLK_EN);
134 case PHY_INTERFACE_MODE_RMII:
136 out_le32(G12A_ETH_REG_0, G12A_ETH_REG_0_PHY_INTF_RMII |
137 G12A_ETH_REG_0_INVERT_RMII_CLK |
138 G12A_ETH_REG_0_CLK_EN);
140 /* Use G12A RMII Internal PHY */
141 if (flags & MESON_USE_INTERNAL_RMII_PHY)
142 g12a_enable_internal_mdio();
144 g12a_enable_external_mdio();
149 printf("Invalid Ethernet interface mode\n");
153 /* Enable power gate */
154 clrbits_le32(G12A_MEM_PD_REG_0, G12A_MEM_PD_REG_0_ETH_MASK);
157 #if CONFIG_IS_ENABLED(USB_DWC3_MESON_G12A) && \
158 CONFIG_IS_ENABLED(USB_GADGET_DWC2_OTG)
159 static struct dwc2_plat_otg_data meson_g12a_dwc2_data;
161 int board_usb_init(int index, enum usb_init_type init)
163 struct fdtdec_phandle_args args;
164 const void *blob = gd->fdt_blob;
166 struct udevice *dev, *clk_dev;
170 /* find the usb glue node */
171 node = fdt_node_offset_by_compatible(blob, -1,
172 "amlogic,meson-g12a-usb-ctrl");
174 debug("Not found usb-control node\n");
178 if (!fdtdec_get_is_enabled(blob, node)) {
179 debug("usb is disabled in the device tree\n");
183 ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
185 debug("Not found usb-control device\n");
189 /* find the dwc2 node */
190 dwc2_node = fdt_node_offset_by_compatible(blob, node,
191 "amlogic,meson-g12a-usb");
193 debug("Not found dwc2 node\n");
197 if (!fdtdec_get_is_enabled(blob, dwc2_node)) {
198 debug("dwc2 is disabled in the device tree\n");
202 meson_g12a_dwc2_data.regs_otg = fdtdec_get_addr(blob, dwc2_node, "reg");
203 if (meson_g12a_dwc2_data.regs_otg == FDT_ADDR_T_NONE) {
204 debug("usbotg: can't get base address\n");
209 ret = fdtdec_parse_phandle_with_args(blob, dwc2_node, "clocks",
210 "#clock-cells", 0, 0, &args);
212 debug("usbotg has no clocks defined in the device tree\n");
216 ret = uclass_get_device_by_of_offset(UCLASS_CLK, args.node, &clk_dev);
220 if (args.args_count != 1) {
221 debug("Can't find clock ID in the device tree\n");
226 clk.id = args.args[0];
228 ret = clk_enable(&clk);
230 debug("Failed to enable usbotg clock\n");
234 meson_g12a_dwc2_data.rx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
235 "g-rx-fifo-size", 0);
236 meson_g12a_dwc2_data.np_tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
237 "g-np-tx-fifo-size", 0);
238 meson_g12a_dwc2_data.tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
239 "g-tx-fifo-size", 0);
241 /* Switch to peripheral mode */
242 ret = dwc3_meson_g12a_force_mode(dev, USB_DR_MODE_PERIPHERAL);
246 return dwc2_udc_probe(&meson_g12a_dwc2_data);
249 int board_usb_cleanup(int index, enum usb_init_type init)
251 const void *blob = gd->fdt_blob;
256 /* find the usb glue node */
257 node = fdt_node_offset_by_compatible(blob, -1,
258 "amlogic,meson-g12a-usb-ctrl");
262 if (!fdtdec_get_is_enabled(blob, node))
265 ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
269 /* Switch to OTG mode */
270 ret = dwc3_meson_g12a_force_mode(dev, USB_DR_MODE_HOST);