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ARM: EXYNOS: Add spi clock support for EXYNOS5
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Add support for clock instances for each spi controller.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
[kgene.kim@samsung.com: changed the name of clk for consensus]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored and Kukjin Kim committed Jul 14, 2012
1 parent 4980c39 commit ea5a9ce
Showing 1 changed file with 95 additions and 0 deletions.
95 changes: 95 additions & 0 deletions arch/arm/mach-exynos/clock-exynos5.c
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Original file line number Diff line number Diff line change
Expand Up @@ -131,6 +131,11 @@ static int exynos5_clksrc_mask_peric0_ctrl(struct clk *clk, int enable)
return s5p_gatectrl(EXYNOS5_CLKSRC_MASK_PERIC0, clk, enable);
}

static int exynos5_clksrc_mask_peric1_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(EXYNOS5_CLKSRC_MASK_PERIC1, clk, enable);
}

static int exynos5_clk_ip_acp_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(EXYNOS5_CLKGATE_IP_ACP, clk, enable);
Expand Down Expand Up @@ -740,6 +745,24 @@ static struct clk exynos5_init_clocks_off[] = {
.parent = &exynos5_clk_aclk_66.clk,
.enable = exynos5_clk_ip_peric_ctrl,
.ctrlbit = (1 << 14),
}, {
.name = "spi",
.devname = "exynos4210-spi.0",
.parent = &exynos5_clk_aclk_66.clk,
.enable = exynos5_clk_ip_peric_ctrl,
.ctrlbit = (1 << 16),
}, {
.name = "spi",
.devname = "exynos4210-spi.1",
.parent = &exynos5_clk_aclk_66.clk,
.enable = exynos5_clk_ip_peric_ctrl,
.ctrlbit = (1 << 17),
}, {
.name = "spi",
.devname = "exynos4210-spi.2",
.parent = &exynos5_clk_aclk_66.clk,
.enable = exynos5_clk_ip_peric_ctrl,
.ctrlbit = (1 << 18),
}, {
.name = SYSMMU_CLOCK_NAME,
.devname = SYSMMU_CLOCK_DEVNAME(mfc_l, 0),
Expand Down Expand Up @@ -1034,6 +1057,69 @@ static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS2, .shift = 24, .size = 8 },
};

static struct clksrc_clk exynos5_clk_mdout_spi0 = {
.clk = {
.name = "mdout_spi",
.devname = "exynos4210-spi.0",
},
.sources = &exynos5_clkset_group,
.reg_src = { .reg = EXYNOS5_CLKSRC_PERIC1, .shift = 16, .size = 4 },
.reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 0, .size = 4 },
};

static struct clksrc_clk exynos5_clk_mdout_spi1 = {
.clk = {
.name = "mdout_spi",
.devname = "exynos4210-spi.1",
},
.sources = &exynos5_clkset_group,
.reg_src = { .reg = EXYNOS5_CLKSRC_PERIC1, .shift = 20, .size = 4 },
.reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 16, .size = 4 },
};

static struct clksrc_clk exynos5_clk_mdout_spi2 = {
.clk = {
.name = "mdout_spi",
.devname = "exynos4210-spi.2",
},
.sources = &exynos5_clkset_group,
.reg_src = { .reg = EXYNOS5_CLKSRC_PERIC1, .shift = 24, .size = 4 },
.reg_div = { .reg = EXYNOS5_CLKDIV_PERIC2, .shift = 0, .size = 4 },
};

static struct clksrc_clk exynos5_clk_sclk_spi0 = {
.clk = {
.name = "sclk_spi",
.devname = "exynos4210-spi.0",
.parent = &exynos5_clk_mdout_spi0.clk,
.enable = exynos5_clksrc_mask_peric1_ctrl,
.ctrlbit = (1 << 16),
},
.reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 8, .size = 8 },
};

static struct clksrc_clk exynos5_clk_sclk_spi1 = {
.clk = {
.name = "sclk_spi",
.devname = "exynos4210-spi.1",
.parent = &exynos5_clk_mdout_spi1.clk,
.enable = exynos5_clksrc_mask_peric1_ctrl,
.ctrlbit = (1 << 20),
},
.reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 24, .size = 8 },
};

static struct clksrc_clk exynos5_clk_sclk_spi2 = {
.clk = {
.name = "sclk_spi",
.devname = "exynos4210-spi.2",
.parent = &exynos5_clk_mdout_spi2.clk,
.enable = exynos5_clksrc_mask_peric1_ctrl,
.ctrlbit = (1 << 24),
},
.reg_div = { .reg = EXYNOS5_CLKDIV_PERIC2, .shift = 8, .size = 8 },
};

static struct clksrc_clk exynos5_clksrcs[] = {
{
.clk = {
Expand Down Expand Up @@ -1148,6 +1234,12 @@ static struct clksrc_clk *exynos5_sysclks[] = {
&exynos5_clk_dout_mmc4,
&exynos5_clk_aclk_acp,
&exynos5_clk_pclk_acp,
&exynos5_clk_sclk_spi0,
&exynos5_clk_sclk_spi1,
&exynos5_clk_sclk_spi2,
&exynos5_clk_mdout_spi0,
&exynos5_clk_mdout_spi1,
&exynos5_clk_mdout_spi2,
};

static struct clk *exynos5_clk_cdev[] = {
Expand Down Expand Up @@ -1176,6 +1268,9 @@ static struct clk_lookup exynos5_clk_lookup[] = {
CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk),
CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk),
CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk),
CLKDEV_INIT("exynos4210-spi.0", "spi_busclk0", &exynos5_clk_sclk_spi0.clk),
CLKDEV_INIT("exynos4210-spi.1", "spi_busclk0", &exynos5_clk_sclk_spi1.clk),
CLKDEV_INIT("exynos4210-spi.2", "spi_busclk0", &exynos5_clk_sclk_spi2.clk),
CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos5_clk_pdma0),
CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos5_clk_pdma1),
CLKDEV_INIT("dma-pl330.2", "apb_pclk", &exynos5_clk_mdma1),
Expand Down

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