1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2016-2017 Intel Corporation
14 #include <asm/arch/misc.h>
15 #include <asm/arch/pinmux.h>
16 #include <asm/arch/reset_manager.h>
17 #include <asm/arch/reset_manager_arria10.h>
18 #include <asm/arch/sdram_arria10.h>
19 #include <asm/arch/system_manager.h>
20 #include <asm/arch/nic301.h>
22 #include <asm/pl310.h>
24 #define PINMUX_UART0_TX_SHARED_IO_OFFSET_Q1_3 0x08
25 #define PINMUX_UART0_TX_SHARED_IO_OFFSET_Q2_11 0x58
26 #define PINMUX_UART0_TX_SHARED_IO_OFFSET_Q3_3 0x68
27 #define PINMUX_UART1_TX_SHARED_IO_OFFSET_Q1_7 0x18
28 #define PINMUX_UART1_TX_SHARED_IO_OFFSET_Q3_7 0x78
29 #define PINMUX_UART1_TX_SHARED_IO_OFFSET_Q4_3 0x98
31 #if defined(CONFIG_SPL_BUILD)
32 static struct pl310_regs *const pl310 =
33 (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
34 static const struct socfpga_noc_fw_ocram *noc_fw_ocram_base =
35 (void *)SOCFPGA_SDR_FIREWALL_OCRAM_ADDRESS;
38 static struct socfpga_system_manager *sysmgr_regs =
39 (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
42 * DesignWare Ethernet initialization
44 #ifdef CONFIG_ETH_DESIGNWARE
45 static void arria10_dwmac_reset(const u8 of_reset_id, const u8 phymode)
49 if (of_reset_id == EMAC0_RESET) {
50 reset = SOCFPGA_RESET(EMAC0);
51 } else if (of_reset_id == EMAC1_RESET) {
52 reset = SOCFPGA_RESET(EMAC1);
53 } else if (of_reset_id == EMAC2_RESET) {
54 reset = SOCFPGA_RESET(EMAC2);
56 printf("GMAC: Invalid reset ID (%i)!\n", of_reset_id);
60 clrsetbits_le32(&sysmgr_regs->emac[of_reset_id - EMAC0_RESET],
61 SYSMGR_EMACGRP_CTRL_PHYSEL_MASK,
64 /* Release the EMAC controller from reset */
65 socfpga_per_reset(reset, 0);
68 static int socfpga_eth_reset(void)
70 /* Put all GMACs into RESET state. */
71 socfpga_per_reset(SOCFPGA_RESET(EMAC0), 1);
72 socfpga_per_reset(SOCFPGA_RESET(EMAC1), 1);
73 socfpga_per_reset(SOCFPGA_RESET(EMAC2), 1);
74 return socfpga_eth_reset_common(arria10_dwmac_reset);
77 static int socfpga_eth_reset(void)
83 #if defined(CONFIG_SPL_BUILD)
85 + * This function initializes security policies to be consistent across
86 + * all logic units in the Arria 10.
88 + * The idea is to set all security policies to be normal, nonsecure
91 static void initialize_security_policies(void)
93 /* Put OCRAM in non-secure */
94 writel(0x003f0000, &noc_fw_ocram_base->region0);
95 writel(0x1, &noc_fw_ocram_base->enable);
98 int arch_early_init_r(void)
100 initialize_security_policies();
102 /* Configure the L2 controller to make SDRAM start at 0 */
103 writel(0x1, &pl310->pl310_addr_filter_start);
105 /* assert reset to all except L4WD0 and L4TIMER0 */
106 socfpga_per_reset_all();
111 int arch_early_init_r(void)
118 * This function looking the 1st encounter UART peripheral,
119 * and then return its offset of the dedicated/shared IO pin
120 * mux. offset value (zero and above).
122 static int find_peripheral_uart(const void *blob,
123 int child, const char *node_name)
126 fdt_addr_t base_addr = 0;
129 u32 value, offset = 0;
131 base_addr = fdtdec_get_addr_size(blob, child, "reg", &size);
132 if (base_addr != FDT_ADDR_T_NONE) {
133 cell = fdt_getprop(blob, child, "pinctrl-single,pins",
136 for (; len > 0; len -= (2 * sizeof(u32))) {
137 offset = fdt32_to_cpu(*cell++);
138 value = fdt32_to_cpu(*cell++);
139 /* Found UART peripheral. */
140 if (value == PINMUX_UART)
149 * This function looks up the 1st encounter UART peripheral,
150 * and then return its offset of the dedicated/shared IO pin
151 * mux. UART peripheral is found if the offset is not in negative
154 static int is_peripheral_uart_true(const void *blob,
155 int node, const char *child_name)
158 const char *node_name;
160 child = fdt_first_subnode(blob, node);
165 node_name = fdt_get_name(blob, child, &len);
168 if (!strcmp(child_name, node_name))
169 return find_peripheral_uart(blob, child, node_name);
171 child = fdt_next_subnode(blob, child);
175 node_name = fdt_get_name(blob, child, &len);
182 * This function looking the 1st encounter UART dedicated IO peripheral,
183 * and then return based address of the 1st encounter UART dedicated
186 unsigned int dedicated_uart_com_port(const void *blob)
190 node = fdtdec_next_compatible(blob, 0,
191 COMPAT_ALTERA_SOCFPGA_PINCTRL_SINGLE);
195 if (is_peripheral_uart_true(blob, node, "dedicated") >= 0)
196 return SOCFPGA_UART1_ADDRESS;
202 * This function looking the 1st encounter UART shared IO peripheral, and then
203 * return based address of the 1st encounter UART shared IO peripheral.
205 unsigned int shared_uart_com_port(const void *blob)
209 node = fdtdec_next_compatible(blob, 0,
210 COMPAT_ALTERA_SOCFPGA_PINCTRL_SINGLE);
214 ret = is_peripheral_uart_true(blob, node, "shared");
216 if (ret == PINMUX_UART0_TX_SHARED_IO_OFFSET_Q1_3 ||
217 ret == PINMUX_UART0_TX_SHARED_IO_OFFSET_Q2_11 ||
218 ret == PINMUX_UART0_TX_SHARED_IO_OFFSET_Q3_3)
219 return SOCFPGA_UART0_ADDRESS;
220 else if (ret == PINMUX_UART1_TX_SHARED_IO_OFFSET_Q1_7 ||
221 ret == PINMUX_UART1_TX_SHARED_IO_OFFSET_Q3_7 ||
222 ret == PINMUX_UART1_TX_SHARED_IO_OFFSET_Q4_3)
223 return SOCFPGA_UART1_ADDRESS;
229 * This function looking the 1st encounter UART peripheral, and then return
230 * base address of the 1st encounter UART peripheral.
232 unsigned int uart_com_port(const void *blob)
236 ret = dedicated_uart_com_port(blob);
241 return shared_uart_com_port(blob);
245 * Print CPU information
247 #if defined(CONFIG_DISPLAY_CPUINFO)
248 int print_cpuinfo(void)
251 SYSMGR_GET_BOOTINFO_BSEL(readl(&sysmgr_regs->bootinfo));
253 puts("CPU: Altera SoCFPGA Arria 10\n");
255 printf("BOOT: %s\n", bsel_str[bsel].name);
260 #ifdef CONFIG_ARCH_MISC_INIT
261 int arch_misc_init(void)
263 return socfpga_eth_reset();
267 void do_bridge_reset(int enable)
270 socfpga_reset_deassert_bridges_handoff();
272 socfpga_bridges_reset();