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| author | Marek Vasut <marex@denx.de> | 2014-09-08 14:08:45 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-10-06 17:46:50 +0200 |
| commit | 807abb18f1376bcd674540e374f2ab7503caea51 (patch) | |
| tree | 047f7ca287df73aa723e1963e0fe330d7be926fb /arch | |
| parent | abb25f4e9529c1b91d651c74af9bd3f1c955437b (diff) | |
| download | u-boot-imx-807abb18f1376bcd674540e374f2ab7503caea51.zip u-boot-imx-807abb18f1376bcd674540e374f2ab7503caea51.tar.gz u-boot-imx-807abb18f1376bcd674540e374f2ab7503caea51.tar.bz2 | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/socfpga/system_manager.c | 39 |
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 07c72e4..11f7bad 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(); } |