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Diffstat (limited to 'arch/arm/mach-shmobile/clock-sh7372.c')
-rw-r--r--arch/arm/mach-shmobile/clock-sh7372.c130
1 files changed, 108 insertions, 22 deletions
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index 8565aefa21f..9aa8d68d1a9 100644
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -20,8 +20,8 @@
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/sh_clk.h>
+#include <linux/clkdev.h>
#include <mach/common.h>
-#include <asm/clkdev.h>
/* SH7372 registers */
#define FRQCRA 0xe6150000
@@ -50,6 +50,9 @@
#define SMSTPCR3 0xe615013c
#define SMSTPCR4 0xe6150140
+#define FSIDIVA 0xFE1F8000
+#define FSIDIVB 0xFE1F8008
+
/* Platforms must set frequency on their DV_CLKI pin */
struct clk sh7372_dv_clki_clk = {
};
@@ -217,8 +220,7 @@ static void pllc2_disable(struct clk *clk)
__raw_writel(__raw_readl(PLLC2CR) & ~0x80000000, PLLC2CR);
}
-static int pllc2_set_rate(struct clk *clk,
- unsigned long rate, int algo_id)
+static int pllc2_set_rate(struct clk *clk, unsigned long rate)
{
unsigned long value;
int idx;
@@ -227,21 +229,13 @@ static int pllc2_set_rate(struct clk *clk,
if (idx < 0)
return idx;
- if (rate == clk->parent->rate) {
- pllc2_disable(clk);
- return 0;
- }
+ if (rate == clk->parent->rate)
+ return -EINVAL;
value = __raw_readl(PLLC2CR) & ~(0x3f << 24);
- if (value & 0x80000000)
- pllc2_disable(clk);
-
__raw_writel((value & ~0x80000000) | ((idx + 19) << 24), PLLC2CR);
- if (value & 0x80000000)
- return pllc2_enable(clk);
-
return 0;
}
@@ -288,6 +282,7 @@ struct clk sh7372_pllc2_clk = {
.ops = &pllc2_clk_ops,
.parent = &extal1_div2_clk,
.freq_table = pllc2_freq_table,
+ .nr_freqs = ARRAY_SIZE(pllc2_freq_table) - 1,
.parent_table = pllc2_parent,
.parent_num = ARRAY_SIZE(pllc2_parent),
};
@@ -417,6 +412,93 @@ static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
fsibckcr_parent, ARRAY_SIZE(fsibckcr_parent), 6, 2),
};
+/* FSI DIV */
+static unsigned long fsidiv_recalc(struct clk *clk)
+{
+ unsigned long value;
+
+ value = __raw_readl(clk->mapping->base);
+
+ if ((value & 0x3) != 0x3)
+ return 0;
+
+ value >>= 16;
+ if (value < 2)
+ return 0;
+
+ return clk->parent->rate / value;
+}
+
+static long fsidiv_round_rate(struct clk *clk, unsigned long rate)
+{
+ return clk_rate_div_range_round(clk, 2, 0xffff, rate);
+}
+
+static void fsidiv_disable(struct clk *clk)
+{
+ __raw_writel(0, clk->mapping->base);
+}
+
+static int fsidiv_enable(struct clk *clk)
+{
+ unsigned long value;
+
+ value = __raw_readl(clk->mapping->base) >> 16;
+ if (value < 2)
+ return -EIO;
+
+ __raw_writel((value << 16) | 0x3, clk->mapping->base);
+
+ return 0;
+}
+
+static int fsidiv_set_rate(struct clk *clk, unsigned long rate)
+{
+ int idx;
+
+ idx = (clk->parent->rate / rate) & 0xffff;
+ if (idx < 2)
+ return -EINVAL;
+
+ __raw_writel(idx << 16, clk->mapping->base);
+ return 0;
+}
+
+static struct clk_ops fsidiv_clk_ops = {
+ .recalc = fsidiv_recalc,
+ .round_rate = fsidiv_round_rate,
+ .set_rate = fsidiv_set_rate,
+ .enable = fsidiv_enable,
+ .disable = fsidiv_disable,
+};
+
+static struct clk_mapping sh7372_fsidiva_clk_mapping = {
+ .phys = FSIDIVA,
+ .len = 8,
+};
+
+struct clk sh7372_fsidiva_clk = {
+ .ops = &fsidiv_clk_ops,
+ .parent = &div6_reparent_clks[DIV6_FSIA], /* late install */
+ .mapping = &sh7372_fsidiva_clk_mapping,
+};
+
+static struct clk_mapping sh7372_fsidivb_clk_mapping = {
+ .phys = FSIDIVB,
+ .len = 8,
+};
+
+struct clk sh7372_fsidivb_clk = {
+ .ops = &fsidiv_clk_ops,
+ .parent = &div6_reparent_clks[DIV6_FSIB], /* late install */
+ .mapping = &sh7372_fsidivb_clk_mapping,
+};
+
+static struct clk *late_main_clks[] = {
+ &sh7372_fsidiva_clk,
+ &sh7372_fsidivb_clk,
+};
+
enum { MSTP001,
MSTP131, MSTP130,
MSTP129, MSTP128, MSTP127, MSTP126, MSTP125,
@@ -425,7 +507,7 @@ enum { MSTP001,
MSTP223,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
- MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
+ MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
MSTP_NR };
#define MSTP(_parent, _reg, _bit, _flags) \
@@ -461,6 +543,7 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */
[MSTP313] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 13, 0), /* SDHI1 */
[MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMC */
+ [MSTP423] = MSTP(&div4_clks[DIV4_B], SMSTPCR4, 23, 0), /* DSITX1 */
[MSTP415] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 15, 0), /* SDHI2 */
[MSTP413] = MSTP(&pllc1_div2_clk, SMSTPCR4, 13, 0), /* HDMI */
[MSTP411] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 11, 0), /* IIC3 */
@@ -510,15 +593,14 @@ static struct clk_lookup lookups[] = {
CLKDEV_CON_ID("vck3_clk", &div6_clks[DIV6_VCK3]),
CLKDEV_CON_ID("fmsi_clk", &div6_clks[DIV6_FMSI]),
CLKDEV_CON_ID("fmso_clk", &div6_clks[DIV6_FMSO]),
- CLKDEV_CON_ID("fsia_clk", &div6_reparent_clks[DIV6_FSIA]),
- CLKDEV_CON_ID("fsib_clk", &div6_reparent_clks[DIV6_FSIB]),
CLKDEV_CON_ID("sub_clk", &div6_clks[DIV6_SUB]),
CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_SPU]),
CLKDEV_CON_ID("vou_clk", &div6_clks[DIV6_VOU]),
CLKDEV_CON_ID("hdmi_clk", &div6_reparent_clks[DIV6_HDMI]),
- CLKDEV_CON_ID("dsit_clk", &div6_clks[DIV6_DSIT]),
- CLKDEV_CON_ID("dsi0p_clk", &div6_clks[DIV6_DSI0P]),
- CLKDEV_CON_ID("dsi1p_clk", &div6_clks[DIV6_DSI1P]),
+ CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSIT]),
+ CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSIT]),
+ CLKDEV_ICK_ID("dsi0p_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSI0P]),
+ CLKDEV_ICK_ID("dsi1p_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSI1P]),
/* MSTP32 clocks */
CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* IIC2 */
@@ -530,7 +612,7 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2 */
CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP125]), /* TMU00 */
CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP125]), /* TMU01 */
- CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX */
+ CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX0 */
CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1", &mstp_clks[MSTP117]), /* LCDC1 */
CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* IIC0 */
CLKDEV_DEV_ID("uio_pdrv_genirq.5", &mstp_clks[MSTP106]), /* JPU */
@@ -548,11 +630,12 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI2 */
CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* IIC1 */
- CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[MSTP323]), /* USB0 */
- CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[MSTP323]), /* USB0 */
+ CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[MSTP322]), /* USB0 */
+ CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[MSTP322]), /* USB0 */
CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMC */
+ CLKDEV_DEV_ID("sh-mipi-dsi.1", &mstp_clks[MSTP423]), /* DSITX1 */
CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP415]), /* SDHI2 */
CLKDEV_DEV_ID("sh-mobile-hdmi", &mstp_clks[MSTP413]), /* HDMI */
CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* IIC3 */
@@ -585,6 +668,9 @@ void __init sh7372_clock_init(void)
if (!ret)
ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
+ ret = clk_register(late_main_clks[k]);
+
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
if (!ret)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-07 01:29:40 +0000