diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2016-08-22 06:48:39 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2016-08-22 06:48:39 +0000 |
| commit | 5c9f46e8c40671a977c19a9fd9759c0aa6bb4227 (patch) | |
| tree | 2de9af4f9be678dd4ae69232a6040e6d031a1ce5 /sys/arch | |
| parent | 3dd4af92c020ad9cdcbddad2fcaa95c101e49407 (diff) | |
Add code to enable the pll6 clock.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/armv7/sunxi/sxiccmu.c | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/sys/arch/armv7/sunxi/sxiccmu.c b/sys/arch/armv7/sunxi/sxiccmu.c index 5656bd31820..1bd6f60af8b 100644 --- a/sys/arch/armv7/sunxi/sxiccmu.c +++ b/sys/arch/armv7/sunxi/sxiccmu.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sxiccmu.c,v 1.9 2016/08/21 23:01:57 kettenis Exp $ */ +/* $OpenBSD: sxiccmu.c,v 1.10 2016/08/22 06:48:38 kettenis Exp $ */ /* * Copyright (c) 2007,2009 Dale Rahn <drahn@openbsd.org> * Copyright (c) 2013 Artturi Alm @@ -194,8 +194,8 @@ struct sxiccmu_device { uint32_t sxiccmu_gen_get_frequency(void *, uint32_t *); uint32_t sxiccmu_osc_get_frequency(void *, uint32_t *); uint32_t sxiccmu_pll6_get_frequency(void *, uint32_t *); +void sxiccmu_pll6_enable(void *, uint32_t *, int); uint32_t sxiccmu_apb1_get_frequency(void *, uint32_t *); - void sxiccmu_gate_enable(void *, uint32_t *, int); struct sxiccmu_device sxiccmu_devices[] = { @@ -206,6 +206,7 @@ struct sxiccmu_device sxiccmu_devices[] = { { .compat = "allwinner,sun4i-a10-pll6-clk", .get_frequency = sxiccmu_pll6_get_frequency, + .enable = sxiccmu_pll6_enable }, { .compat = "allwinner,sun4i-a10-apb1-clk", @@ -327,9 +328,18 @@ sxiccmu_osc_get_frequency(void *cookie, uint32_t *cells) return OF_getpropint(sc->sc_node, "clock-frequency", 24000000); } +#define CCU_PLL6_ENABLE (1U << 31) +#define CCU_PLL6_BYPASS_EN (1U << 30) +#define CCU_PLL6_SATA_CLK_EN (1U << 14) #define CCU_PLL6_FACTOR_N(x) (((x) >> 8) & 0x1f) +#define CCU_PLL6_FACTOR_N_MASK (0x1f << 8) +#define CCU_PLL6_FACTOR_N_SHIFT 8 #define CCU_PLL6_FACTOR_K(x) (((x) >> 4) & 0x3) +#define CCU_PLL6_FACTOR_K_MASK (0x3 << 4) +#define CCU_PLL6_FACTOR_K_SHIFT 4 #define CCU_PLL6_FACTOR_M(x) (((x) >> 0) & 0x3) +#define CCU_PLL6_FACTOR_M_MASK (0x3 << 0) +#define CCU_PLL6_FACTOR_M_SHIFT 0 uint32_t sxiccmu_pll6_get_frequency(void *cookie, uint32_t *cells) @@ -359,6 +369,34 @@ sxiccmu_pll6_get_frequency(void *cookie, uint32_t *cells) return 0; } +void +sxiccmu_pll6_enable(void *cookie, uint32_t *cells, int on) +{ + struct sxiccmu_clock *sc = cookie; + uint32_t idx = cells[0]; + uint32_t reg; + + /* + * Since this clock has several outputs, we never turn it off. + */ + + reg = SXIREAD4(sc, 0); + switch (idx) { + case 0: /* pll6_sata */ + if (on) + reg |= CCU_PLL6_SATA_CLK_EN; + else + reg &= ~CCU_PLL6_SATA_CLK_EN; + /* FALLTHROUGH */ + case 1: /* pll6_other */ + case 2: /* pll6 */ + case 3: /* pll6_div_4 */ + if (on) + reg |= CCU_PLL6_ENABLE; + } + SXIWRITE4(sc, 0, reg); +} + #define CCU_APB1_CLK_RAT_N(x) (((x) >> 16) & 0x3) #define CCU_APB1_CLK_RAT_M(x) (((x) >> 0) & 0x1f) #define CCU_APB1_CLK_SRC_SEL(x) (((x) >> 24) & 0x3) |