diff options
| author | Koji Matsuoka <koji.matsuoka.xm@renesas.com> | 2020-07-16 06:11:16 +0300 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@gmail.com> | 2021-06-24 21:22:18 +0300 |
| commit | cdaa69c46eee3c75cca2f72296044d2bd1405343 (patch) | |
| tree | c08ca8d2d90e5ef29ac75c918e172250c86db10e /board/renesas | |
| parent | b3494132f068906a73e86826ffb7b19f4ad5ec5f (diff) | |
| download | u-boot-cdaa69c46eee3c75cca2f72296044d2bd1405343.tar.xz | |
ARM: renesas: Add GICv3 initialization for V3U Falcon
Init GICv3 for V3U Falcon in early phase
Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Diffstat (limited to 'board/renesas')
| -rw-r--r-- | board/renesas/falcon/falcon.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/board/renesas/falcon/falcon.c b/board/renesas/falcon/falcon.c index c3241bc21d..3e74384716 100644 --- a/board/renesas/falcon/falcon.c +++ b/board/renesas/falcon/falcon.c @@ -40,6 +40,33 @@ static void init_generic_timer(void) setbits_le32(CNTCR_BASE, CNTCR_EN); } +/* Distributor Registers */ +#define GICD_BASE 0xF1000000 + +/* ReDistributor Registers for Control and Physical LPIs */ +#define GICR_LPI_BASE 0xF1060000 +#define GICR_WAKER 0x0014 +#define GICR_PWRR 0x0024 +#define GICR_LPI_WAKER (GICR_LPI_BASE + GICR_WAKER) +#define GICR_LPI_PWRR (GICR_LPI_BASE + GICR_PWRR) + +/* ReDistributor Registers for SGIs and PPIs */ +#define GICR_SGI_BASE 0xF1070000 +#define GICR_IGROUPR0 0x0080 + +static void init_gic_v3(void) +{ + /* GIC v3 power on */ + writel(0x00000002, (GICR_LPI_PWRR)); + + /* Wait till the WAKER_CA_BIT changes to 0 */ + writel(readl(GICR_LPI_WAKER) & ~0x00000002, (GICR_LPI_WAKER)); + while (readl(GICR_LPI_WAKER) & 0x00000004) + ; + + writel(0xffffffff, GICR_SGI_BASE + GICR_IGROUPR0); +} + void s_init(void) { init_generic_timer(); @@ -59,6 +86,8 @@ int board_init(void) /* address of boot parameters */ gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000; + init_gic_v3(); + return 0; } |