diff options
Diffstat (limited to 'drivers/clk/renesas/rcar-gen2-cpg.c')
| -rw-r--r-- | drivers/clk/renesas/rcar-gen2-cpg.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/clk/renesas/rcar-gen2-cpg.c b/drivers/clk/renesas/rcar-gen2-cpg.c index feb14579a71b..daf88bc2cdae 100644 --- a/drivers/clk/renesas/rcar-gen2-cpg.c +++ b/drivers/clk/renesas/rcar-gen2-cpg.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/sys_soc.h> #include "renesas-cpg-mssr.h" #include "rcar-gen2-cpg.h" @@ -260,6 +261,17 @@ static const struct clk_div_table cpg_sd01_div_table[] = { static const struct rcar_gen2_cpg_pll_config *cpg_pll_config __initdata; static unsigned int cpg_pll0_div __initdata; static u32 cpg_mode __initdata; +static u32 cpg_quirks __initdata; + +#define SD_SKIP_FIRST BIT(0) /* Skip first clock in SD table */ + +static const struct soc_device_attribute cpg_quirks_match[] __initconst = { + { + .soc_id = "r8a77470", + .data = (void *)SD_SKIP_FIRST, + }, + { /* sentinel */ } +}; struct clk * __init rcar_gen2_cpg_clk_register(struct device *dev, const struct cpg_core_clk *core, const struct cpg_mssr_info *info, @@ -327,11 +339,17 @@ struct clk * __init rcar_gen2_cpg_clk_register(struct device *dev, case CLK_TYPE_GEN2_SD0: table = cpg_sd01_div_table; + if (cpg_quirks & SD_SKIP_FIRST) + table++; + shift = 4; break; case CLK_TYPE_GEN2_SD1: table = cpg_sd01_div_table; + if (cpg_quirks & SD_SKIP_FIRST) + table++; + shift = 0; break; @@ -360,9 +378,15 @@ struct clk * __init rcar_gen2_cpg_clk_register(struct device *dev, int __init rcar_gen2_cpg_init(const struct rcar_gen2_cpg_pll_config *config, unsigned int pll0_div, u32 mode) { + const struct soc_device_attribute *attr; + cpg_pll_config = config; cpg_pll0_div = pll0_div; cpg_mode = mode; + attr = soc_device_match(cpg_quirks_match); + if (attr) + cpg_quirks = (uintptr_t)attr->data; + pr_debug("%s: mode = 0x%x quirks = 0x%x\n", __func__, mode, cpg_quirks); spin_lock_init(&cpg_lock); |