opensbi.git/firmware, branch v0.2

firmware: Improve low-level trap handler for M-mode to M-mode traps

2019-02-20T06:32:40Z

This patch extends our low-level trap handler in fw_base.S for handling M-mode to M-mode traps without overwritting stack. Signed-off-by: Anup Patel

firmware: Ensure the payloads are 4 bit alligned

2019-02-15T04:26:47Z

We expect the payloads to be 4 bit alligned as we later AND them with ~0xf. As most of the addresses are manually specified we don't really need this, but better to be over cautious. Signed-off-by: Alistair Francis

firmware: Use CSR_ instead of for csr*

2019-02-14T04:01:18Z

Some older toolchains may not have all the csr's defined. Update all the csr functions to use the CSR_ #define values instead of the toolchain defined values. Signed-off-by: Atish Patra

firmware: Use lw instead of lwu for 32-bit architectures

2019-02-08T03:48:46Z

Signed-off-by: Alistair Francis

firwmare: don't expand macros in FW_PAYLOAD_PATH

2019-02-06T05:09:17Z

Signed-off-by: Andreas Schwab

all: Update copyright header in all files

2019-01-24T08:37:47Z

This patch updates copyright header in all files as follows: 1. Makes "SPDX-License-Identifier: BSD-2-Clause" as first line 2. Change copyright year to 2019 for Western Digital Signed-off-by: Anup Patel

lib: Move software interrupt enablement from firmware to lib

2019-01-22T04:33:49Z

The secondary hart waits for an IPI signal from the boot hart to executing boot code (hot boot). As a result, software generated interrupts have to be enabled for secondary harts before waiting for the boot hart boot completion IPI signal. Enabling software generated interrupts (IPI) can be done independently of the firmware code and moved to libsbi code so that the different firmware do not have to implement this. Signed-off-by: Atish Patra

sbi: Add ecall helpers

2019-01-21T04:28:33Z

Define sbi_ecall_console_puts() using sbi_ecall_console_putchar() renamed as sbi_ecall_console_putc() and remove the hardcoded version of the same funtion in the test payload code. Signed-off-by: Damien Le Moal

payload: rename dummy payload to test payload

2019-01-21T04:28:33Z

Use a more neutral term more representative of this payload intent. Signed-off-by: Damien Le Moal

Makefile: Add support for device tree compilation

2019-01-21T04:28:33Z

Add rules to compile dts files into dtb files using the device tree compiler (dtc). A platform can specify the DTS file to compile using the platform-dtb-y variable. The flattened device tree binary file to be used for building the final polatform firmware can be specified using the new FW_PAYLOAD_FDT firmware configuration option to point to the automatically compiled FDT file. Using the existing FW_PAYLOAD_FDT_PATH configuration option is still possible and will take precedence over the FW_PAYLOAD_FDT definition. Signed-off-by: Damien Le Moal