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ARM: SAMSUNG: Add lookup of sdhci-s3c clocks using generic names
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Add support for lookup of sdhci-s3c controller clocks using generic names
for s3c2416, s3c64xx, s5pc100, s5pv210 and exynos4 SoC's.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
[kgene.kim@samsung.com: fixed trailing whitespace]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Rajeshwari Shinde authored and Kukjin Kim committed Dec 23, 2011
1 parent a60879e commit a361d10
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Showing 6 changed files with 359 additions and 236 deletions.
88 changes: 52 additions & 36 deletions arch/arm/mach-exynos/clock.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1154,42 +1154,6 @@ static struct clksrc_clk clksrcs[] = {
.sources = &clkset_mout_mfc,
.reg_src = { .reg = S5P_CLKSRC_MFC, .shift = 8, .size = 1 },
.reg_div = { .reg = S5P_CLKDIV_MFC, .shift = 0, .size = 4 },
}, {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.0",
.parent = &clk_dout_mmc0.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 0),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 8, .size = 8 },
}, {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.1",
.parent = &clk_dout_mmc1.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 4),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 24, .size = 8 },
}, {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.2",
.parent = &clk_dout_mmc2.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 8),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 8, .size = 8 },
}, {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.3",
.parent = &clk_dout_mmc3.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 12),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 24, .size = 8 },
}, {
.clk = {
.name = "sclk_dwmmc",
Expand Down Expand Up @@ -1249,6 +1213,50 @@ static struct clksrc_clk clk_sclk_uart3 = {
.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 12, .size = 4 },
};

static struct clksrc_clk clk_sclk_mmc0 = {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.0",
.parent = &clk_dout_mmc0.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 0),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 8, .size = 8 },
};

static struct clksrc_clk clk_sclk_mmc1 = {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.1",
.parent = &clk_dout_mmc1.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 4),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 24, .size = 8 },
};

static struct clksrc_clk clk_sclk_mmc2 = {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.2",
.parent = &clk_dout_mmc2.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 8),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 8, .size = 8 },
};

static struct clksrc_clk clk_sclk_mmc3 = {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.3",
.parent = &clk_dout_mmc3.clk,
.enable = exynos4_clksrc_mask_fsys_ctrl,
.ctrlbit = (1 << 12),
},
.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 24, .size = 8 },
};

/* Clock initialization code */
static struct clksrc_clk *sysclks[] = {
&clk_mout_apll,
Expand Down Expand Up @@ -1293,13 +1301,21 @@ static struct clksrc_clk *clksrc_cdev[] = {
&clk_sclk_uart1,
&clk_sclk_uart2,
&clk_sclk_uart3,
&clk_sclk_mmc0,
&clk_sclk_mmc1,
&clk_sclk_mmc2,
&clk_sclk_mmc3,
};

static struct clk_lookup exynos4_clk_lookup[] = {
CLKDEV_INIT("exynos4210-uart.0", "clk_uart_baud0", &clk_sclk_uart0.clk),
CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &clk_sclk_uart1.clk),
CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &clk_sclk_uart2.clk),
CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &clk_sclk_uart3.clk),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &clk_sclk_mmc3.clk),
CLKDEV_INIT("dma-pl330.0", "apb_pclk", &clk_pdma0),
CLKDEV_INIT("dma-pl330.1", "apb_pclk", &clk_pdma1),
};
Expand Down
68 changes: 37 additions & 31 deletions arch/arm/mach-s3c2416/clock.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -90,39 +90,38 @@ static struct clksrc_clk hsmmc_div[] = {
},
};

static struct clksrc_clk hsmmc_mux[] = {
[0] = {
.clk = {
.name = "hsmmc-if",
.devname = "s3c-sdhci.0",
.ctrlbit = (1 << 6),
.enable = s3c2443_clkcon_enable_s,
},
.sources = &(struct clksrc_sources) {
.nr_sources = 2,
.sources = (struct clk *[]) {
[0] = &hsmmc_div[0].clk,
[1] = NULL, /* to fix */
},
},
.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 16 },
static struct clksrc_clk hsmmc_mux0 = {
.clk = {
.name = "hsmmc-if",
.devname = "s3c-sdhci.0",
.ctrlbit = (1 << 6),
.enable = s3c2443_clkcon_enable_s,
},
[1] = {
.clk = {
.name = "hsmmc-if",
.devname = "s3c-sdhci.1",
.ctrlbit = (1 << 12),
.enable = s3c2443_clkcon_enable_s,
.sources = &(struct clksrc_sources) {
.nr_sources = 2,
.sources = (struct clk * []) {
[0] = &hsmmc_div[0].clk,
[1] = NULL, /* to fix */
},
.sources = &(struct clksrc_sources) {
.nr_sources = 2,
.sources = (struct clk *[]) {
[0] = &hsmmc_div[1].clk,
[1] = NULL, /* to fix */
},
},
.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 16 },
};

static struct clksrc_clk hsmmc_mux1 = {
.clk = {
.name = "hsmmc-if",
.devname = "s3c-sdhci.1",
.ctrlbit = (1 << 12),
.enable = s3c2443_clkcon_enable_s,
},
.sources = &(struct clksrc_sources) {
.nr_sources = 2,
.sources = (struct clk * []) {
[0] = &hsmmc_div[1].clk,
[1] = NULL, /* to fix */
},
.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 17 },
},
.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 17 },
};

static struct clk hsmmc0_clk = {
Expand All @@ -144,8 +143,14 @@ static struct clksrc_clk *clksrcs[] __initdata = {
&hsspi_mux,
&hsmmc_div[0],
&hsmmc_div[1],
&hsmmc_mux[0],
&hsmmc_mux[1],
&hsmmc_mux0,
&hsmmc_mux1,
};

static struct clk_lookup s3c2416_clk_lookup[] = {
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &hsmmc0_clk),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &hsmmc_mux0.clk),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &hsmmc_mux1.clk),
};

void __init s3c2416_init_clocks(int xtal)
Expand All @@ -167,6 +172,7 @@ void __init s3c2416_init_clocks(int xtal)
s3c_register_clksrc(clksrcs[ptr], 1);

s3c24xx_register_clock(&hsmmc0_clk);
clkdev_add_table(s3c2416_clk_lookup, ARRAY_SIZE(s3c2416_clk_lookup));

s3c_pwmclk_init();

Expand Down
126 changes: 78 additions & 48 deletions arch/arm/mach-s3c64xx/clock.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -242,24 +242,6 @@ static struct clk init_clocks[] = {
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_UHOST,
}, {
.name = "hsmmc",
.devname = "s3c-sdhci.0",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
}, {
.name = "hsmmc",
.devname = "s3c-sdhci.1",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
}, {
.name = "hsmmc",
.devname = "s3c-sdhci.2",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
}, {
.name = "otg",
.parent = &clk_h,
Expand Down Expand Up @@ -310,6 +292,29 @@ static struct clk init_clocks[] = {
}
};

static struct clk clk_hsmmc0 = {
.name = "hsmmc",
.devname = "s3c-sdhci.0",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
};

static struct clk clk_hsmmc1 = {
.name = "hsmmc",
.devname = "s3c-sdhci.1",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
};

static struct clk clk_hsmmc2 = {
.name = "hsmmc",
.devname = "s3c-sdhci.2",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
};

static struct clk clk_fout_apll = {
.name = "fout_apll",
Expand Down Expand Up @@ -577,36 +582,6 @@ static struct clksrc_sources clkset_camif = {

static struct clksrc_clk clksrcs[] = {
{
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.0",
.ctrlbit = S3C_CLKCON_SCLK_MMC0,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 },
.sources = &clkset_spi_mmc,
}, {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.1",
.ctrlbit = S3C_CLKCON_SCLK_MMC1,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 },
.sources = &clkset_spi_mmc,
}, {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.2",
.ctrlbit = S3C_CLKCON_SCLK_MMC2,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 },
.sources = &clkset_spi_mmc,
}, {
.clk = {
.name = "usb-bus-host",
.ctrlbit = S3C_CLKCON_SCLK_UHOST,
Expand Down Expand Up @@ -697,6 +672,42 @@ static struct clksrc_clk clk_sclk_uclk = {
.sources = &clkset_uart,
};

static struct clksrc_clk clk_sclk_mmc0 = {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.0",
.ctrlbit = S3C_CLKCON_SCLK_MMC0,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 },
.sources = &clkset_spi_mmc,
};

static struct clksrc_clk clk_sclk_mmc1 = {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.1",
.ctrlbit = S3C_CLKCON_SCLK_MMC1,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 },
.sources = &clkset_spi_mmc,
};

static struct clksrc_clk clk_sclk_mmc2 = {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.2",
.ctrlbit = S3C_CLKCON_SCLK_MMC2,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 },
.sources = &clkset_spi_mmc,
};

/* Clock initialisation code */

static struct clksrc_clk *init_parents[] = {
Expand All @@ -707,11 +718,26 @@ static struct clksrc_clk *init_parents[] = {

static struct clksrc_clk *clksrc_cdev[] = {
&clk_sclk_uclk,
&clk_sclk_mmc0,
&clk_sclk_mmc1,
&clk_sclk_mmc2,
};

static struct clk *clk_cdev[] = {
&clk_hsmmc0,
&clk_hsmmc1,
&clk_hsmmc2,
};

static struct clk_lookup s3c64xx_clk_lookup[] = {
CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
};

#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
Expand Down Expand Up @@ -834,6 +860,10 @@ void __init s3c64xx_register_clocks(unsigned long xtal,
s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));

s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++)
s3c_disable_clocks(clk_cdev[cnt], 1);

s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1));
s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++)
Expand Down
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