| Paul Beesley | f3653a6 | 2019-05-22 11:22:44 +0100 | [diff] [blame] | 1 | Amlogic Meson S905x (GXL) |
| 2 | ========================= |
| Remi Pommarel | 75e43e0 | 2019-04-01 11:34:09 +0200 | [diff] [blame] | 3 | |
| 4 | The Amlogic Meson S905x is a SoC with a quad core Arm Cortex-A53 running at |
| 5 | 1.5Ghz. It also contains a Cortex-M3 used as SCP. |
| 6 | |
| 7 | This port is a minimal implementation of BL31 capable of booting mainline U-Boot |
| 8 | and Linux: |
| 9 | |
| 10 | - SCPI support. |
| 11 | - Basic PSCI support (CPU_ON, CPU_OFF, SYSTEM_RESET, SYSTEM_OFF). Note that CPU0 |
| 12 | can't be turned off, so there is a workaround to hide this from the caller. |
| 13 | - GICv2 driver set up. |
| 14 | - Basic SIP services (read efuse data, enable/disable JTAG). |
| 15 | |
| 16 | In order to build it: |
| 17 | |
| Paul Beesley | 493e349 | 2019-03-13 15:11:04 +0000 | [diff] [blame] | 18 | .. code:: shell |
| Remi Pommarel | 75e43e0 | 2019-04-01 11:34:09 +0200 | [diff] [blame] | 19 | |
| Madhukar Pappireddy | 30b45e2 | 2020-01-02 17:11:22 -0600 | [diff] [blame^] | 20 | CROSS_COMPILE=aarch64-none-elf- make DEBUG=1 PLAT=gxl |
| Remi Pommarel | 75e43e0 | 2019-04-01 11:34:09 +0200 | [diff] [blame] | 21 | |
| 22 | This port has been tested on a Lepotato. After building it, follow the |
| 23 | instructions in the `gxlimg repository` or `U-Boot repository`_, replacing the |
| 24 | mentioned **bl31.img** by the one built from this port. |
| 25 | |
| 26 | .. _gxlimg repository: https://github.com/repk/gxlimg/blob/master/README |
| 27 | .. _U-Boot repository: https://github.com/u-boot/u-boot/blob/master/board/amlogic/p212/README.libretech-cc |