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-rw-r--r--arch/arm/dts/socfpga_cyclone5_de10_nano.dts1
-rw-r--r--arch/arm/mach-socfpga/include/mach/misc.h2
-rw-r--r--arch/arm/mach-socfpga/include/mach/reset_manager_gen5.h1
-rw-r--r--arch/arm/mach-socfpga/misc.c17
-rw-r--r--arch/arm/mach-socfpga/misc_arria10.c2
-rw-r--r--arch/arm/mach-socfpga/misc_gen5.c41
-rw-r--r--arch/arm/mach-socfpga/misc_s10.c2
-rw-r--r--arch/arm/mach-socfpga/reset_manager_gen5.c28
-rw-r--r--arch/arm/mach-socfpga/spl_gen5.c8
9 files changed, 54 insertions, 48 deletions
diff --git a/arch/arm/dts/socfpga_cyclone5_de10_nano.dts b/arch/arm/dts/socfpga_cyclone5_de10_nano.dts
index b620dd8dda..4be4083941 100644
--- a/arch/arm/dts/socfpga_cyclone5_de10_nano.dts
+++ b/arch/arm/dts/socfpga_cyclone5_de10_nano.dts
@@ -77,6 +77,7 @@
};
&uart0 {
+ clock-frequency = <100000000>;
u-boot,dm-pre-reloc;
};
diff --git a/arch/arm/mach-socfpga/include/mach/misc.h b/arch/arm/mach-socfpga/include/mach/misc.h
index 86d5d2b62b..c3ca8cdf3b 100644
--- a/arch/arm/mach-socfpga/include/mach/misc.h
+++ b/arch/arm/mach-socfpga/include/mach/misc.h
@@ -39,6 +39,6 @@ void socfpga_init_security_policies(void);
void socfpga_sdram_remap_zero(void);
#endif
-void do_bridge_reset(int enable);
+void do_bridge_reset(int enable, unsigned int mask);
#endif /* _MISC_H_ */
diff --git a/arch/arm/mach-socfpga/include/mach/reset_manager_gen5.h b/arch/arm/mach-socfpga/include/mach/reset_manager_gen5.h
index dd58922cec..5e490d182e 100644
--- a/arch/arm/mach-socfpga/include/mach/reset_manager_gen5.h
+++ b/arch/arm/mach-socfpga/include/mach/reset_manager_gen5.h
@@ -9,6 +9,7 @@
#include <dt-bindings/reset/altr,rst-mgr.h>
void reset_deassert_peripherals_handoff(void);
+void socfpga_bridges_set_handoff_regs(bool h2f, bool lwh2f, bool f2h);
void socfpga_bridges_reset(int enable);
struct socfpga_reset_manager {
diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c
index ec8339e045..e1ea8eb73e 100644
--- a/arch/arm/mach-socfpga/misc.c
+++ b/arch/arm/mach-socfpga/misc.c
@@ -126,17 +126,22 @@ int arch_cpu_init(void)
#ifndef CONFIG_SPL_BUILD
static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- if (argc != 2)
+ unsigned int mask = ~0;
+
+ if (argc < 2 || argc > 3)
return CMD_RET_USAGE;
argv++;
+ if (argc == 3)
+ mask = simple_strtoul(argv[1], NULL, 16);
+
switch (*argv[0]) {
case 'e': /* Enable */
- do_bridge_reset(1);
+ do_bridge_reset(1, mask);
break;
case 'd': /* Disable */
- do_bridge_reset(0);
+ do_bridge_reset(0, mask);
break;
default:
return CMD_RET_USAGE;
@@ -145,10 +150,10 @@ static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
-U_BOOT_CMD(bridge, 2, 1, do_bridge,
+U_BOOT_CMD(bridge, 3, 1, do_bridge,
"SoCFPGA HPS FPGA bridge control",
- "enable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
- "bridge disable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
+ "enable [mask] - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
+ "bridge disable [mask] - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
""
);
diff --git a/arch/arm/mach-socfpga/misc_arria10.c b/arch/arm/mach-socfpga/misc_arria10.c
index 63b8c75d31..2e2a40b65d 100644
--- a/arch/arm/mach-socfpga/misc_arria10.c
+++ b/arch/arm/mach-socfpga/misc_arria10.c
@@ -115,7 +115,7 @@ int print_cpuinfo(void)
}
#endif
-void do_bridge_reset(int enable)
+void do_bridge_reset(int enable, unsigned int mask)
{
if (enable)
socfpga_reset_deassert_bridges_handoff();
diff --git a/arch/arm/mach-socfpga/misc_gen5.c b/arch/arm/mach-socfpga/misc_gen5.c
index 9865f5b5b1..71547d81ab 100644
--- a/arch/arm/mach-socfpga/misc_gen5.c
+++ b/arch/arm/mach-socfpga/misc_gen5.c
@@ -210,47 +210,26 @@ static struct socfpga_reset_manager *reset_manager_base =
static struct socfpga_sdr_ctrl *sdr_ctrl =
(struct socfpga_sdr_ctrl *)SDR_CTRLGRP_ADDRESS;
-static void socfpga_sdram_apply_static_cfg(void)
+void do_bridge_reset(int enable, unsigned int mask)
{
- const u32 applymask = 0x8;
- u32 val = readl(&sdr_ctrl->static_cfg) | applymask;
-
- /*
- * SDRAM staticcfg register specific:
- * When applying the register setting, the CPU must not access
- * SDRAM. Luckily for us, we can abuse i-cache here to help us
- * circumvent the SDRAM access issue. The idea is to make sure
- * that the code is in one full i-cache line by branching past
- * it and back. Once it is in the i-cache, we execute the core
- * of the code and apply the register settings.
- *
- * The code below uses 7 instructions, while the Cortex-A9 has
- * 32-byte cachelines, thus the limit is 8 instructions total.
- */
- asm volatile(
- ".align 5 \n"
- " b 2f \n"
- "1: str %0, [%1] \n"
- " dsb \n"
- " isb \n"
- " b 3f \n"
- "2: b 1b \n"
- "3: nop \n"
- : : "r"(val), "r"(&sdr_ctrl->static_cfg) : "memory", "cc");
-}
+ int i;
-void do_bridge_reset(int enable)
-{
if (enable) {
+ socfpga_bridges_set_handoff_regs(!(mask & BIT(0)),
+ !(mask & BIT(1)),
+ !(mask & BIT(2)));
+ for (i = 0; i < 2; i++) { /* Reload SW setting cache */
+ iswgrp_handoff[i] =
+ readl(&sysmgr_regs->iswgrp_handoff[i]);
+ }
+
writel(iswgrp_handoff[2], &sysmgr_regs->fpgaintfgrp_module);
- socfpga_sdram_apply_static_cfg();
writel(iswgrp_handoff[3], &sdr_ctrl->fpgaport_rst);
writel(iswgrp_handoff[0], &reset_manager_base->brg_mod_reset);
writel(iswgrp_handoff[1], &nic301_regs->remap);
} else {
writel(0, &sysmgr_regs->fpgaintfgrp_module);
writel(0, &sdr_ctrl->fpgaport_rst);
- socfpga_sdram_apply_static_cfg();
writel(0, &reset_manager_base->brg_mod_reset);
writel(1, &nic301_regs->remap);
}
diff --git a/arch/arm/mach-socfpga/misc_s10.c b/arch/arm/mach-socfpga/misc_s10.c
index 113eace650..60c96090ce 100644
--- a/arch/arm/mach-socfpga/misc_s10.c
+++ b/arch/arm/mach-socfpga/misc_s10.c
@@ -150,7 +150,7 @@ int arch_early_init_r(void)
return 0;
}
-void do_bridge_reset(int enable)
+void do_bridge_reset(int enable, unsigned int mask)
{
socfpga_bridges_reset(enable);
}
diff --git a/arch/arm/mach-socfpga/reset_manager_gen5.c b/arch/arm/mach-socfpga/reset_manager_gen5.c
index 25baef79bc..89a384b59c 100644
--- a/arch/arm/mach-socfpga/reset_manager_gen5.c
+++ b/arch/arm/mach-socfpga/reset_manager_gen5.c
@@ -73,6 +73,28 @@ void reset_deassert_peripherals_handoff(void)
#define L3REGS_REMAP_HPS2FPGA_MASK 0x08
#define L3REGS_REMAP_OCRAM_MASK 0x01
+void socfpga_bridges_set_handoff_regs(bool h2f, bool lwh2f, bool f2h)
+{
+ u32 brgmask = 0x0;
+ u32 l3rmask = L3REGS_REMAP_OCRAM_MASK;
+
+ if (h2f)
+ brgmask |= BIT(0);
+ else
+ l3rmask |= L3REGS_REMAP_HPS2FPGA_MASK;
+
+ if (lwh2f)
+ brgmask |= BIT(1);
+ else
+ l3rmask |= L3REGS_REMAP_LWHPS2FPGA_MASK;
+
+ if (f2h)
+ brgmask |= BIT(2);
+
+ writel(brgmask, &sysmgr_regs->iswgrp_handoff[0]);
+ writel(l3rmask, &sysmgr_regs->iswgrp_handoff[1]);
+}
+
void socfpga_bridges_reset(int enable)
{
const u32 l3mask = L3REGS_REMAP_LWHPS2FPGA_MASK |
@@ -81,10 +103,10 @@ void socfpga_bridges_reset(int enable)
if (enable) {
/* brdmodrst */
- writel(0xffffffff, &reset_manager_base->brg_mod_reset);
+ writel(0x7, &reset_manager_base->brg_mod_reset);
+ writel(L3REGS_REMAP_OCRAM_MASK, SOCFPGA_L3REGS_ADDRESS);
} else {
- writel(0, &sysmgr_regs->iswgrp_handoff[0]);
- writel(l3mask, &sysmgr_regs->iswgrp_handoff[1]);
+ socfpga_bridges_set_handoff_regs(false, false, false);
/* Check signal from FPGA. */
if (!fpgamgr_test_fpga_ready()) {
diff --git a/arch/arm/mach-socfpga/spl_gen5.c b/arch/arm/mach-socfpga/spl_gen5.c
index 9dd0afb4bc..bd2a9fe5ae 100644
--- a/arch/arm/mach-socfpga/spl_gen5.c
+++ b/arch/arm/mach-socfpga/spl_gen5.c
@@ -175,8 +175,9 @@ void board_init_f(ulong dummy)
sysmgr_pinmux_init();
sysmgr_config_warmrstcfgio(0);
- /* De-assert reset for bridges based on handoff */
- socfpga_bridges_reset(0);
+ /* De-assert reset for peripherals and bridges based on handoff */
+ reset_deassert_peripherals_handoff();
+ socfpga_bridges_set_handoff_regs(true, true, true);
debug("Unfreezing/Thaw all I/O banks\n");
/* unfreeze / thaw all IO banks */
@@ -205,7 +206,4 @@ void board_init_f(ulong dummy)
debug("DRAM init failed: %d\n", ret);
hang();
}
-
- if (!socfpga_is_booting_from_fpga())
- socfpga_bridges_reset(1);
}
generated by cgit (git 2.34.1) at 2025-01-05 21:08:55 +0000