From 807abb18f1376bcd674540e374f2ab7503caea51 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Mon, 8 Sep 2014 14:08:45 +0200
Subject: [PATCH] arm: socfpga: sysmgr: Add FPGA bits into system manager
Add missing system manager bits from Altera U-Boot to make the code
comparable. These are the bits which depend on the FPGA manager.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Tom Rini <trini@ti.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Pavel Machek <pavel@denx.de>
Acked-by: Pavel Machek <pavel@denx.de>
---
arch/arm/cpu/armv7/socfpga/system_manager.c | 39 +++++++++++++++++++++
1 file changed, 39 insertions(+)
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
@@ -14,6 +14,43 @@ DECLARE_GLOBAL_DATA_PTR;
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
*/
@@ -26,4 +63,6 @@ void sysmgr_pinmux_init(void)
writel(sys_mgr_init_table[i], regs);
regs += sizeof(regs);
}
+
+ populate_sysmgr_fpgaintf_module();
}
--
2.39.5