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| author | Pavel Machek <pavel@denx.de> | 2014-09-08 14:08:45 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-10-06 17:46:51 +0200 |
| commit | 13e81d45f80b58e57a78daf6850d4f3a6bc20d9e (patch) | |
| tree | 91f23ccc1d1afe12a6f872a76dfb428c827cb00a /arch/arm/cpu | |
| parent | 60d804c2f3ddd0071348c6e65999e19b4d07d16a (diff) | |
| download | u-boot-imx-13e81d45f80b58e57a78daf6850d4f3a6bc20d9e.zip u-boot-imx-13e81d45f80b58e57a78daf6850d4f3a6bc20d9e.tar.gz u-boot-imx-13e81d45f80b58e57a78daf6850d4f3a6bc20d9e.tar.bz2 | |
arm: socfpga: nic301: Add NIC-301 configuration code
Add code which configures the AMBA NIC-301 and the SCU on the SoCFPGA .
The code sets the access permissions for the CPU to the AMBA slaves such
that the CPU can access them in both secure and non-secure mode.
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>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/socfpga/misc.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/misc.c b/arch/arm/cpu/armv7/socfpga/misc.c index 0fc26c2..76186c5 100644 --- a/arch/arm/cpu/armv7/socfpga/misc.c +++ b/arch/arm/cpu/armv7/socfpga/misc.c @@ -13,6 +13,7 @@ #include <asm/arch/system_manager.h> #include <asm/arch/dwmmc.h> #include <asm/arch/nic301.h> +#include <asm/arch/scu.h> #include <asm/pl310.h> DECLARE_GLOBAL_DATA_PTR; @@ -23,6 +24,8 @@ static struct socfpga_system_manager *sysmgr_regs = (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS; static struct nic301_registers *nic301_regs = (struct nic301_registers *)SOCFPGA_L3REGS_ADDRESS; +static struct scu_registers *scu_regs = + (struct scu_registers *)SOCFPGA_MPUSCU_ADDRESS; int dram_init(void) { @@ -146,8 +149,31 @@ int arch_cpu_init(void) return 0; } +/* + * Convert all NIC-301 AMBA slaves from secure to non-secure + */ +static void socfpga_nic301_slave_ns(void) +{ + writel(0x1, &nic301_regs->lwhps2fpgaregs); + writel(0x1, &nic301_regs->hps2fpgaregs); + writel(0x1, &nic301_regs->acp); + writel(0x1, &nic301_regs->rom); + writel(0x1, &nic301_regs->ocram); + writel(0x1, &nic301_regs->sdrdata); +} + int misc_init_r(void) { + socfpga_bridges_reset(1); + socfpga_nic301_slave_ns(); + + /* + * Private components security: + * U-Boot : configure private timer, global timer and cpu component + * access as non secure for kernel stage (as required by Linux) + */ + setbits_le32(&scu_regs->sacr, 0xfff); + /* Configure the L2 controller to make SDRAM start at 0 */ #ifdef CONFIG_SOCFPGA_VIRTUAL_TARGET writel(0x2, &nic301_regs->remap); |