1 // SPDX-License-Identifier: GPL-2.0+
10 #include <asm/arch/boot.h>
11 #include <asm/arch/eth.h>
12 #include <asm/arch/g12a.h>
13 #include <asm/arch/mem.h>
14 #include <asm/arch/meson-vpu.h>
16 #include <asm/armv8/mmu.h>
17 #include <linux/sizes.h>
19 #include <linux/usb/otg.h>
20 #include <asm/arch/usb.h>
21 #include <usb/dwc2_udc.h>
25 DECLARE_GLOBAL_DATA_PTR;
27 int meson_get_boot_device(void)
29 return readl(G12A_AO_SEC_GP_CFG0) & G12A_AO_BOOT_DEVICE;
32 /* Configure the reserved memory zones exported by the secure registers
33 * into EFI and DTB reserved memory entries.
35 void meson_init_reserved_memory(void *fdt)
37 u64 bl31_size, bl31_start;
38 u64 bl32_size, bl32_start;
42 * Get ARM Trusted Firmware reserved memory zones in :
43 * - AO_SEC_GP_CFG3: bl32 & bl31 size in KiB, can be 0
44 * - AO_SEC_GP_CFG5: bl31 physical start address, can be NULL
45 * - AO_SEC_GP_CFG4: bl32 physical start address, can be NULL
47 reg = readl(G12A_AO_SEC_GP_CFG3);
49 bl31_size = ((reg & G12A_AO_BL31_RSVMEM_SIZE_MASK)
50 >> G12A_AO_BL31_RSVMEM_SIZE_SHIFT) * SZ_1K;
51 bl32_size = (reg & G12A_AO_BL32_RSVMEM_SIZE_MASK) * SZ_1K;
53 bl31_start = readl(G12A_AO_SEC_GP_CFG5);
54 bl32_start = readl(G12A_AO_SEC_GP_CFG4);
56 /* Add BL31 reserved zone */
57 if (bl31_start && bl31_size)
58 meson_board_add_reserved_memory(fdt, bl31_start, bl31_size);
60 /* Add BL32 reserved zone */
61 if (bl32_start && bl32_size)
62 meson_board_add_reserved_memory(fdt, bl32_start, bl32_size);
64 #if defined(CONFIG_VIDEO_MESON)
65 meson_vpu_rsv_fb(fdt);
69 phys_size_t get_effective_memsize(void)
71 /* Size is reported in MiB, convert it in bytes */
72 return min(((readl(G12A_AO_SEC_GP_CFG0) & G12A_AO_MEM_SIZE_MASK)
73 >> G12A_AO_MEM_SIZE_SHIFT) * SZ_1M, 0xf5000000);
76 static struct mm_region g12a_mem_map[] = {
81 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
87 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
89 PTE_BLOCK_PXN | PTE_BLOCK_UXN
96 struct mm_region *mem_map = g12a_mem_map;
98 static void g12a_enable_external_mdio(void)
100 writel(0x0, ETH_PHY_CNTL2);
103 static void g12a_enable_internal_mdio(void)
105 /* Fire up the PHY PLL */
106 writel(0x29c0040a, ETH_PLL_CNTL0);
107 writel(0x927e0000, ETH_PLL_CNTL1);
108 writel(0xac5f49e5, ETH_PLL_CNTL2);
109 writel(0x00000000, ETH_PLL_CNTL3);
110 writel(0x00000000, ETH_PLL_CNTL4);
111 writel(0x20200000, ETH_PLL_CNTL5);
112 writel(0x0000c002, ETH_PLL_CNTL6);
113 writel(0x00000023, ETH_PLL_CNTL7);
114 writel(0x39c0040a, ETH_PLL_CNTL0);
115 writel(0x19c0040a, ETH_PLL_CNTL0);
117 /* Select the internal MDIO */
118 writel(0x33000180, ETH_PHY_CNTL0);
119 writel(0x00074043, ETH_PHY_CNTL1);
120 writel(0x00000260, ETH_PHY_CNTL2);
123 /* Configure the Ethernet MAC with the requested interface mode
124 * with some optional flags.
126 void meson_eth_init(phy_interface_t mode, unsigned int flags)
129 case PHY_INTERFACE_MODE_RGMII:
130 case PHY_INTERFACE_MODE_RGMII_ID:
131 case PHY_INTERFACE_MODE_RGMII_RXID:
132 case PHY_INTERFACE_MODE_RGMII_TXID:
134 setbits_le32(G12A_ETH_REG_0, G12A_ETH_REG_0_PHY_INTF_RGMII |
135 G12A_ETH_REG_0_TX_PHASE(1) |
136 G12A_ETH_REG_0_TX_RATIO(4) |
137 G12A_ETH_REG_0_PHY_CLK_EN |
138 G12A_ETH_REG_0_CLK_EN);
139 g12a_enable_external_mdio();
142 case PHY_INTERFACE_MODE_RMII:
144 out_le32(G12A_ETH_REG_0, G12A_ETH_REG_0_PHY_INTF_RMII |
145 G12A_ETH_REG_0_INVERT_RMII_CLK |
146 G12A_ETH_REG_0_CLK_EN);
148 /* Use G12A RMII Internal PHY */
149 if (flags & MESON_USE_INTERNAL_RMII_PHY)
150 g12a_enable_internal_mdio();
152 g12a_enable_external_mdio();
157 printf("Invalid Ethernet interface mode\n");
161 /* Enable power gate */
162 clrbits_le32(G12A_MEM_PD_REG_0, G12A_MEM_PD_REG_0_ETH_MASK);
165 #if CONFIG_IS_ENABLED(USB_DWC3_MESON_G12A) && \
166 CONFIG_IS_ENABLED(USB_GADGET_DWC2_OTG)
167 static struct dwc2_plat_otg_data meson_g12a_dwc2_data;
169 int board_usb_init(int index, enum usb_init_type init)
171 struct fdtdec_phandle_args args;
172 const void *blob = gd->fdt_blob;
174 struct udevice *dev, *clk_dev;
178 /* find the usb glue node */
179 node = fdt_node_offset_by_compatible(blob, -1,
180 "amlogic,meson-g12a-usb-ctrl");
182 debug("Not found usb-control node\n");
186 if (!fdtdec_get_is_enabled(blob, node)) {
187 debug("usb is disabled in the device tree\n");
191 ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
193 debug("Not found usb-control device\n");
197 /* find the dwc2 node */
198 dwc2_node = fdt_node_offset_by_compatible(blob, node,
199 "amlogic,meson-g12a-usb");
201 debug("Not found dwc2 node\n");
205 if (!fdtdec_get_is_enabled(blob, dwc2_node)) {
206 debug("dwc2 is disabled in the device tree\n");
210 meson_g12a_dwc2_data.regs_otg = fdtdec_get_addr(blob, dwc2_node, "reg");
211 if (meson_g12a_dwc2_data.regs_otg == FDT_ADDR_T_NONE) {
212 debug("usbotg: can't get base address\n");
217 ret = fdtdec_parse_phandle_with_args(blob, dwc2_node, "clocks",
218 "#clock-cells", 0, 0, &args);
220 debug("usbotg has no clocks defined in the device tree\n");
224 ret = uclass_get_device_by_of_offset(UCLASS_CLK, args.node, &clk_dev);
228 if (args.args_count != 1) {
229 debug("Can't find clock ID in the device tree\n");
234 clk.id = args.args[0];
236 ret = clk_enable(&clk);
238 debug("Failed to enable usbotg clock\n");
242 meson_g12a_dwc2_data.rx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
243 "g-rx-fifo-size", 0);
244 meson_g12a_dwc2_data.np_tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
245 "g-np-tx-fifo-size", 0);
246 meson_g12a_dwc2_data.tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
247 "g-tx-fifo-size", 0);
249 /* Switch to peripheral mode */
250 ret = dwc3_meson_g12a_force_mode(dev, USB_DR_MODE_PERIPHERAL);
254 return dwc2_udc_probe(&meson_g12a_dwc2_data);
257 int board_usb_cleanup(int index, enum usb_init_type init)
259 const void *blob = gd->fdt_blob;
264 /* find the usb glue node */
265 node = fdt_node_offset_by_compatible(blob, -1,
266 "amlogic,meson-g12a-usb-ctrl");
270 if (!fdtdec_get_is_enabled(blob, node))
273 ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
277 /* Switch to OTG mode */
278 ret = dwc3_meson_g12a_force_mode(dev, USB_DR_MODE_HOST);