summaryrefslogtreecommitdiff
path: root/arch/arm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/armv7/socfpga/system_manager.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/system_manager.c b/arch/arm/cpu/armv7/socfpga/system_manager.c
index 07c72e49e0..11f7badbf2 100644
--- a/arch/arm/cpu/armv7/socfpga/system_manager.c
+++ b/arch/arm/cpu/armv7/socfpga/system_manager.c
@@ -15,6 +15,43 @@ static struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
/*
+ * Populate the value for SYSMGR.FPGAINTF.MODULE based on pinmux setting.
+ * The value is not wrote to SYSMGR.FPGAINTF.MODULE but
+ * CONFIG_SYSMGR_ISWGRP_HANDOFF.
+ */
+static void populate_sysmgr_fpgaintf_module(void)
+{
+ uint32_t handoff_val = 0;
+
+ /* ISWGRP_HANDOFF_FPGAINTF */
+ writel(0, &sysmgr_regs->iswgrp_handoff[2]);
+
+ /* Enable the signal for those HPS peripherals that use FPGA. */
+ if (readl(&sysmgr_regs->nandusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_NAND;
+ if (readl(&sysmgr_regs->rgmii1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_EMAC1;
+ if (readl(&sysmgr_regs->sdmmcusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_SDMMC;
+ if (readl(&sysmgr_regs->rgmii0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_EMAC0;
+ if (readl(&sysmgr_regs->spim0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_SPIM0;
+ if (readl(&sysmgr_regs->spim1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_SPIM1;
+
+ /* populate (not writing) the value for SYSMGR.FPGAINTF.MODULE
+ based on pinmux setting */
+ setbits_le32(&sysmgr_regs->iswgrp_handoff[2], handoff_val);
+
+ handoff_val = readl(&sysmgr_regs->iswgrp_handoff[2]);
+ if (fpgamgr_test_fpga_ready()) {
+ /* Enable the required signals only */
+ writel(handoff_val, &sysmgr_regs->fpgaintfgrp_module);
+ }
+}
+
+/*
* Configure all the pin muxes
*/
void sysmgr_pinmux_init(void)
@@ -26,4 +63,6 @@ void sysmgr_pinmux_init(void)
writel(sys_mgr_init_table[i], regs);
regs += sizeof(regs);
}
+
+ populate_sysmgr_fpgaintf_module();
}