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yaml
---
r: 296052
b: refs/heads/master
c: 1aa0cf6
h: refs/heads/master
v: v3
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Richard Zhao authored and Shawn Guo committed Feb 27, 2012
1 parent 14c13c1 commit 7132586
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Showing 2 changed files with 74 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 89857353f9264785517393753ec9e77dba144734
refs/heads/master: 1aa0cf677949dafaaff8cd1a78f1f69a239138ac
74 changes: 73 additions & 1 deletion trunk/arch/arm/mach-imx/clock-imx6q.c
Original file line number Diff line number Diff line change
Expand Up @@ -329,6 +329,12 @@
#define BM_CLPCR_MASK_SCU_IDLE (0x1 << 26)
#define BM_CLPCR_MASK_L2CC_IDLE (0x1 << 27)

#define BP_CCOSR_CKO1_EN 7
#define BP_CCOSR_CKO1_PODF 4
#define BM_CCOSR_CKO1_PODF (0x7 << 4)
#define BP_CCOSR_CKO1_SEL 0
#define BM_CCOSR_CKO1_SEL (0xf << 0)

#define FREQ_480M 480000000
#define FREQ_528M 528000000
#define FREQ_594M 594000000
Expand Down Expand Up @@ -393,6 +399,7 @@ static struct clk ipu1_di1_clk;
static struct clk ipu2_di0_clk;
static struct clk ipu2_di1_clk;
static struct clk enfc_clk;
static struct clk cko1_clk;
static struct clk dummy_clk = {};

static unsigned long external_high_reference;
Expand Down Expand Up @@ -938,6 +945,24 @@ static void _clk_disable(struct clk *clk)
writel_relaxed(reg, clk->enable_reg);
}

static int _clk_enable_1b(struct clk *clk)
{
u32 reg;
reg = readl_relaxed(clk->enable_reg);
reg |= 0x1 << clk->enable_shift;
writel_relaxed(reg, clk->enable_reg);

return 0;
}

static void _clk_disable_1b(struct clk *clk)
{
u32 reg;
reg = readl_relaxed(clk->enable_reg);
reg &= ~(0x1 << clk->enable_shift);
writel_relaxed(reg, clk->enable_reg);
}

struct divider {
struct clk *clk;
void __iomem *reg;
Expand Down Expand Up @@ -983,6 +1008,7 @@ DEF_CLK_DIV1(ipu2_di0_pre_div, &ipu2_di0_pre_clk, CSCDR2, IPU2_DI0_PRE);
DEF_CLK_DIV1(ipu2_di1_pre_div, &ipu2_di1_pre_clk, CSCDR2, IPU2_DI1_PRE);
DEF_CLK_DIV1(ipu1_div, &ipu1_clk, CSCDR3, IPU1_HSP);
DEF_CLK_DIV1(ipu2_div, &ipu2_clk, CSCDR3, IPU2_HSP);
DEF_CLK_DIV1(cko1_div, &cko1_clk, CCOSR, CKO1);

#define DEF_CLK_DIV2(d, c, r, b) \
static struct divider d = { \
Expand Down Expand Up @@ -1038,6 +1064,7 @@ static struct divider *dividers[] = {
&enfc_div,
&spdif_div,
&asrc_serial_div,
&cko1_div,
};

static unsigned long ldb_di_clk_get_rate(struct clk *clk)
Expand Down Expand Up @@ -1625,6 +1652,32 @@ DEF_IPU_DI_MUX(CSCDR2, 2, 1);
DEF_IPU_MUX(1);
DEF_IPU_MUX(2);

static struct multiplexer cko1_mux = {
.clk = &cko1_clk,
.reg = CCOSR,
.bp = BP_CCOSR_CKO1_SEL,
.bm = BM_CCOSR_CKO1_SEL,
.parents = {
&pll3_usb_otg,
&pll2_bus,
&pll1_sys,
&pll5_video,
&dummy_clk,
&axi_clk,
&enfc_clk,
&ipu1_di0_clk,
&ipu1_di1_clk,
&ipu2_di0_clk,
&ipu2_di1_clk,
&ahb_clk,
&ipg_clk,
&ipg_perclk,
&ckil_clk,
&pll4_audio,
NULL
},
};

static struct multiplexer *multiplexers[] = {
&axi_mux,
&periph_mux,
Expand Down Expand Up @@ -1667,6 +1720,7 @@ static struct multiplexer *multiplexers[] = {
&ipu2_di1_mux,
&ipu1_mux,
&ipu2_mux,
&cko1_mux,
};

static int _clk_set_parent(struct clk *clk, struct clk *parent)
Expand All @@ -1690,7 +1744,7 @@ static int _clk_set_parent(struct clk *clk, struct clk *parent)
break;
i++;
}
if (!m->parents[i])
if (!m->parents[i] || m->parents[i] == &dummy_clk)
return -EINVAL;

val = readl_relaxed(m->reg);
Expand Down Expand Up @@ -1745,6 +1799,20 @@ DEF_NG_CLK(asrc_serial_clk, &pll3_usb_otg);
.secondary = s, \
}

#define DEF_CLK_1B(name, er, es, p, s) \
static struct clk name = { \
.enable_reg = er, \
.enable_shift = es, \
.enable = _clk_enable_1b, \
.disable = _clk_disable_1b, \
.get_rate = _clk_get_rate, \
.set_rate = _clk_set_rate, \
.round_rate = _clk_round_rate, \
.set_parent = _clk_set_parent, \
.parent = p, \
.secondary = s, \
}

DEF_CLK(aips_tz1_clk, CCGR0, CG0, &ahb_clk, NULL);
DEF_CLK(aips_tz2_clk, CCGR0, CG1, &ahb_clk, NULL);
DEF_CLK(apbh_dma_clk, CCGR0, CG2, &ahb_clk, NULL);
Expand Down Expand Up @@ -1811,6 +1879,7 @@ DEF_CLK(usdhc4_clk, CCGR6, CG4, &pll2_pfd_400m, NULL);
DEF_CLK(emi_slow_clk, CCGR6, CG5, &axi_clk, NULL);
DEF_CLK(vdo_axi_clk, CCGR6, CG6, &axi_clk, NULL);
DEF_CLK(vpu_clk, CCGR6, CG7, &axi_clk, NULL);
DEF_CLK_1B(cko1_clk, CCOSR, BP_CCOSR_CKO1_EN, &pll2_bus, NULL);

static int pcie_clk_enable(struct clk *clk)
{
Expand Down Expand Up @@ -1922,6 +1991,7 @@ static struct clk_lookup lookups[] = {
_REGISTER_CLOCK(NULL, "gpmi_io_clk", gpmi_io_clk),
_REGISTER_CLOCK(NULL, "usboh3_clk", usboh3_clk),
_REGISTER_CLOCK(NULL, "sata_clk", sata_clk),
_REGISTER_CLOCK(NULL, "cko1_clk", cko1_clk),
};

int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
Expand Down Expand Up @@ -2029,6 +2099,8 @@ int __init mx6q_clocks_init(void)
clk_set_rate(&usdhc3_clk, 49500000);
clk_set_rate(&usdhc4_clk, 49500000);

clk_set_parent(&cko1_clk, &ahb_clk);

np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
base = of_iomap(np, 0);
WARN_ON(!base);
Expand Down

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