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gerrit.cesnet.cz / github / trini / u-boot / 9a3b4ceb37989263e9280644912d269386b99bb7 / . / arch / arm / mach-meson / board-axg.c
blob: 173905e762d2635eef46a7ab89b01889b1a25b57 [file] [log] [blame]
Neil Armstrong485bba32018-09-05 15:56:12 +0200[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
4 * (C) Copyright 2018 Neil Armstrong <narmstrong@baylibre.com>
5 */
6
7#include <common.h>
Neil Armstrongd96a7822018-07-27 14:10:00 +0200[diff] [blame]8#include <asm/arch/boot.h>
Neil Armstrong485bba32018-09-05 15:56:12 +0200[diff] [blame]9#include <asm/arch/eth.h>
10#include <asm/arch/axg.h>
11#include <asm/arch/mem.h>
12#include <asm/io.h>
13#include <asm/armv8/mmu.h>
14#include <linux/sizes.h>
15#include <phy.h>
16
17DECLARE_GLOBAL_DATA_PTR;
18
Neil Armstrongd96a7822018-07-27 14:10:00 +0200[diff] [blame]19int meson_get_boot_device(void)
20{
21 return readl(AXG_AO_SEC_GP_CFG0) & AXG_AO_BOOT_DEVICE;
22}
23
Neil Armstrong485bba32018-09-05 15:56:12 +0200[diff] [blame]24/* Configure the reserved memory zones exported by the secure registers
25 * into EFI and DTB reserved memory entries.
26 */
27void meson_init_reserved_memory(void *fdt)
28{
29 u64 bl31_size, bl31_start;
30 u64 bl32_size, bl32_start;
31 u32 reg;
32
33 /*
34 * Get ARM Trusted Firmware reserved memory zones in :
35 * - AO_SEC_GP_CFG3: bl32 & bl31 size in KiB, can be 0
36 * - AO_SEC_GP_CFG5: bl31 physical start address, can be NULL
37 * - AO_SEC_GP_CFG4: bl32 physical start address, can be NULL
38 */
39 reg = readl(AXG_AO_SEC_GP_CFG3);
40
41 bl31_size = ((reg & AXG_AO_BL31_RSVMEM_SIZE_MASK)
42 >> AXG_AO_BL31_RSVMEM_SIZE_SHIFT) * SZ_1K;
43 bl32_size = (reg & AXG_AO_BL32_RSVMEM_SIZE_MASK) * SZ_1K;
44
45 bl31_start = readl(AXG_AO_SEC_GP_CFG5);
46 bl32_start = readl(AXG_AO_SEC_GP_CFG4);
47
48 /* Add BL31 reserved zone */
49 if (bl31_start && bl31_size)
50 meson_board_add_reserved_memory(fdt, bl31_start, bl31_size);
51
52 /* Add BL32 reserved zone */
53 if (bl32_start && bl32_size)
54 meson_board_add_reserved_memory(fdt, bl32_start, bl32_size);
55}
56
57phys_size_t get_effective_memsize(void)
58{
59 /* Size is reported in MiB, convert it in bytes */
60 return ((readl(AXG_AO_SEC_GP_CFG0) & AXG_AO_MEM_SIZE_MASK)
61 >> AXG_AO_MEM_SIZE_SHIFT) * SZ_1M;
62}
63
64static struct mm_region axg_mem_map[] = {
65 {
66 .virt = 0x0UL,
67 .phys = 0x0UL,
68 .size = 0x80000000UL,
69 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
70 PTE_BLOCK_INNER_SHARE
71 }, {
72 .virt = 0xf0000000UL,
73 .phys = 0xf0000000UL,
74 .size = 0x10000000UL,
75 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
76 PTE_BLOCK_NON_SHARE |
77 PTE_BLOCK_PXN | PTE_BLOCK_UXN
78 }, {
79 /* List terminator */
80 0,
81 }
82};
83
84struct mm_region *mem_map = axg_mem_map;
85
86/* Configure the Ethernet MAC with the requested interface mode
87 * with some optional flags.
88 */
89void meson_eth_init(phy_interface_t mode, unsigned int flags)
90{
91 switch (mode) {
92 case PHY_INTERFACE_MODE_RGMII:
93 case PHY_INTERFACE_MODE_RGMII_ID:
94 case PHY_INTERFACE_MODE_RGMII_RXID:
95 case PHY_INTERFACE_MODE_RGMII_TXID:
96 /* Set RGMII mode */
97 setbits_le32(AXG_ETH_REG_0, AXG_ETH_REG_0_PHY_INTF_RGMII |
98 AXG_ETH_REG_0_TX_PHASE(1) |
99 AXG_ETH_REG_0_TX_RATIO(4) |
100 AXG_ETH_REG_0_PHY_CLK_EN |
101 AXG_ETH_REG_0_CLK_EN);
102 break;
103
104 case PHY_INTERFACE_MODE_RMII:
105 /* Set RMII mode */
106 out_le32(AXG_ETH_REG_0, AXG_ETH_REG_0_PHY_INTF_RMII |
107 AXG_ETH_REG_0_INVERT_RMII_CLK |
108 AXG_ETH_REG_0_CLK_EN);
109 break;
110
111 default:
112 printf("Invalid Ethernet interface mode\n");
113 return;
114 }
115
116 /* Enable power gate */
117 clrbits_le32(AXG_MEM_PD_REG_0, AXG_MEM_PD_REG_0_ETH_MASK);
118}