OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Some fixes for the fresh i.MX common clock support 

-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABCAAGBQJPtMbfAAoJEPFlmONMx+ezzZEP/3KJ01NLA4pvyNnQuKWD57Mq
 azjR4bEc1pKIGiRQEYS+fzW84ARG7S7rGCXt2uJOXCmwx2FTMsii5IyDo7jd0pdt
 bJvcKvSS1OCfSLbTsWqC6tbgkJUrwQa6Uqr77s6N8R5OzxIRndCPz7MsG8Ys7p+Q
 Vk53yrm6oOHhY9/EbUq0lYEsda7xCDkbvrBN82PzoTs6QInLk65sqMGUhTCSZMB+
 1Y4cLbkCrHT3i1FP/IV6EnfqgIfbPerjNXWFLW9enucBuzRtMm+VE+2Bc5OZLPkJ
 DMwuNQLRcVPeIY44WobJFgMvDxoGWLYS5IQcFx+n/OedoMTaLCHpO5mkT6wTnb+D
 2mIQ60DalaZSfn/jZkkPP1irnWHS5J/CsRr436JTjX3brgE4iqRfQaeTKU6jytWd
 ZAsPYPMIRM25nw3bu0C7a1UwQP3+TfC+2BQ1OtNs5A51U8jgNA23CfrRNrUNHk9S
 34JPm7GWxniniB0l6gXHLJIAN5old5WZpl9sJZRQKEtDr4FLV5zqTe2S5YyinFz/
 bPXFSzC+JNqZPia/Yq62jtqF8+NXdgkEKxCf14Ug8rL0RnRzSVOv31BEbKu/Sb9W
 4eZyDPGSJdadWGDYlky9ZXIfgkWBCJiWJOxI2TtCUcmikL/beGgNI/7UpcdyIPbd
 nyu8gWbPEgpLZpa96c9c
 =tXwW
 -----END PGP SIGNATURE-----

Merge tag 'imx-clk-common-fixes' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes

From Sascha Hauer: "Some fixes for the fresh i.MX common clock support"

Resolved trivial conflict in arch/arm/plat-mxc/include/mach/common.h.

* tag 'imx-clk-common-fixes' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM: imx6q: prepare and enable init on clks directly instead of clk_get first
  ARM i.MX: remove now unnecessary argument from mxc_timer_init
  ARM: i.MX: change timer clock from ipg to perclk
  ARM i.MX5: fix gpt peripheral clock path

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2012-06-07 11:43:23 -07:00
parent f8f5701bda b0286f20c3
commit 97114f3982
11 changed files with 44 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mach-imx/clk-imx1.c
View File

@ -108,8 +108,7 @@ int __init mx1_clocks_init(unsigned long fref)
clk_register_clkdev(clk[clk32], NULL, "mxc_rtc.0");
clk_register_clkdev(clk[clko], "clko", NULL);
mxc_timer_init(NULL, MX1_IO_ADDRESS(MX1_TIM1_BASE_ADDR),
MX1_TIM1_INT);
mxc_timer_init(MX1_IO_ADDRESS(MX1_TIM1_BASE_ADDR), MX1_TIM1_INT);
return 0;
}

4
arch/arm/mach-imx/clk-imx21.c
View File

@ -180,7 +180,7 @@ int __init mx21_clocks_init(unsigned long lref, unsigned long href)
clk_register_clkdev(clk[sdhc1_ipg_gate], "sdhc1", NULL);
clk_register_clkdev(clk[sdhc2_ipg_gate], "sdhc2", NULL);
mxc_timer_init(NULL, MX21_IO_ADDRESS(MX21_GPT1_BASE_ADDR),
MX21_INT_GPT1);
mxc_timer_init(MX21_IO_ADDRESS(MX21_GPT1_BASE_ADDR), MX21_INT_GPT1);
return 0;
}

2
arch/arm/mach-imx/clk-imx25.c
View File

@ -243,6 +243,6 @@ int __init mx25_clocks_init(void)
clk_register_clkdev(clk[sdma_ahb], "ahb", "imx35-sdma");
clk_register_clkdev(clk[iim_ipg], "iim", NULL);
mxc_timer_init(NULL, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
return 0;
}

3
arch/arm/mach-imx/clk-imx27.c
View File

@ -263,8 +263,7 @@ int __init mx27_clocks_init(unsigned long fref)
clk_register_clkdev(clk[ssi1_baud_gate], "bitrate" , "imx-ssi.0");
clk_register_clkdev(clk[ssi2_baud_gate], "bitrate" , "imx-ssi.1");
mxc_timer_init(NULL, MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR),
MX27_INT_GPT1);
mxc_timer_init(MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR), MX27_INT_GPT1);
clk_prepare_enable(clk[emi_ahb_gate]);

3
arch/arm/mach-imx/clk-imx31.c
View File

@ -175,8 +175,7 @@ int __init mx31_clocks_init(unsigned long fref)
mx31_revision();
clk_disable_unprepare(clk[iim_gate]);
mxc_timer_init(NULL, MX31_IO_ADDRESS(MX31_GPT1_BASE_ADDR),
MX31_INT_GPT);
mxc_timer_init(MX31_IO_ADDRESS(MX31_GPT1_BASE_ADDR), MX31_INT_GPT);
return 0;
}

6
arch/arm/mach-imx/clk-imx35.c
View File

@ -267,11 +267,9 @@ int __init mx35_clocks_init()
imx_print_silicon_rev("i.MX35", mx35_revision());
#ifdef CONFIG_MXC_USE_EPIT
epit_timer_init(&epit1_clk,
MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1);
epit_timer_init(MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1);
#else
mxc_timer_init(NULL, MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR),
MX35_INT_GPT);
mxc_timer_init(MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT);
#endif
return 0;

12
arch/arm/mach-imx/clk-imx51-imx53.c
View File

@ -104,12 +104,12 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
periph_apm_sel, ARRAY_SIZE(periph_apm_sel));
clk[main_bus] = imx_clk_mux("main_bus", MXC_CCM_CBCDR, 25, 1,
main_bus_sel, ARRAY_SIZE(main_bus_sel));
clk[per_lp_apm] = imx_clk_mux("per_lp_apm", MXC_CCM_CBCDR, 1, 1,
clk[per_lp_apm] = imx_clk_mux("per_lp_apm", MXC_CCM_CBCMR, 1, 1,
per_lp_apm_sel, ARRAY_SIZE(per_lp_apm_sel));
clk[per_pred1] = imx_clk_divider("per_pred1", "per_lp_apm", MXC_CCM_CBCDR, 6, 2);
clk[per_pred2] = imx_clk_divider("per_pred2", "per_pred1", MXC_CCM_CBCDR, 3, 3);
clk[per_podf] = imx_clk_divider("per_podf", "per_pred2", MXC_CCM_CBCDR, 0, 3);
clk[per_root] = imx_clk_mux("per_root", MXC_CCM_CBCDR, 1, 0,
clk[per_root] = imx_clk_mux("per_root", MXC_CCM_CBCMR, 0, 1,
per_root_sel, ARRAY_SIZE(per_root_sel));
clk[ahb] = imx_clk_divider("ahb", "main_bus", MXC_CCM_CBCDR, 10, 3);
clk[ahb_max] = imx_clk_gate2("ahb_max", "ahb", MXC_CCM_CCGR0, 28);
@ -172,7 +172,7 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
clk[pwm1_hf_gate] = imx_clk_gate2("pwm1_hf_gate", "ipg", MXC_CCM_CCGR2, 12);
clk[pwm2_ipg_gate] = imx_clk_gate2("pwm2_ipg_gate", "ipg", MXC_CCM_CCGR2, 14);
clk[pwm2_hf_gate] = imx_clk_gate2("pwm2_hf_gate", "ipg", MXC_CCM_CCGR2, 16);
clk[gpt_gate] = imx_clk_gate2("gpt_gate", "ipg", MXC_CCM_CCGR2, 18);
clk[gpt_gate] = imx_clk_gate2("gpt_gate", "per_root", MXC_CCM_CCGR2, 18);
clk[fec_gate] = imx_clk_gate2("fec_gate", "ipg", MXC_CCM_CCGR2, 24);
clk[usboh3_gate] = imx_clk_gate2("usboh3_gate", "ipg", MXC_CCM_CCGR2, 26);
clk[usboh3_per_gate] = imx_clk_gate2("usboh3_per_gate", "usboh3_podf", MXC_CCM_CCGR2, 28);
@ -366,8 +366,7 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
clk_set_rate(clk[esdhc_b_podf], 166250000);
/* System timer */
mxc_timer_init(NULL, MX51_IO_ADDRESS(MX51_GPT1_BASE_ADDR),
MX51_INT_GPT);
mxc_timer_init(MX51_IO_ADDRESS(MX51_GPT1_BASE_ADDR), MX51_INT_GPT);
clk_prepare_enable(clk[iim_gate]);
imx_print_silicon_rev("i.MX51", mx51_revision());
@ -452,8 +451,7 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
clk_set_rate(clk[esdhc_b_podf], 200000000);
/* System timer */
mxc_timer_init(NULL, MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR),
MX53_INT_GPT);
mxc_timer_init(MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR), MX53_INT_GPT);
clk_prepare_enable(clk[iim_gate]);
imx_print_silicon_rev("i.MX53", mx53_revision());

22
arch/arm/mach-imx/clk-imx6q.c
View File

@ -122,10 +122,6 @@ static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5
"dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0",
"ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio", };
static const char * const clks_init_on[] __initconst = {
"mmdc_ch0_axi", "mmdc_ch1_axi", "usboh3",
};
enum mx6q_clks {
dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m,
pll3_pfd0_720m, pll3_pfd1_540m, pll3_pfd2_508m, pll3_pfd3_454m,
@ -161,11 +157,14 @@ enum mx6q_clks {
static struct clk *clk[clk_max];
static enum mx6q_clks const clks_init_on[] __initconst = {
mmdc_ch0_axi, mmdc_ch1_axi,
};
int __init mx6q_clocks_init(void)
{
struct device_node *np;
void __iomem *base;
struct clk *c;
int i, irq;
clk[dummy] = imx_clk_fixed("dummy", 0);
@ -424,21 +423,14 @@ int __init mx6q_clocks_init(void)
clk_register_clkdev(clk[ahb], "ahb", NULL);
clk_register_clkdev(clk[cko1], "cko1", NULL);
for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) {
c = clk_get_sys(clks_init_on[i], NULL);
if (IS_ERR(c)) {
pr_err("%s: failed to get clk %s", __func__,
clks_init_on[i]);
return PTR_ERR(c);
}
clk_prepare_enable(c);
}
for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
clk_prepare_enable(clk[clks_init_on[i]]);
np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
base = of_iomap(np, 0);
WARN_ON(!base);
irq = irq_of_parse_and_map(np, 0);
mxc_timer_init(NULL, base, irq);
mxc_timer_init(base, irq);
return 0;
}

11
arch/arm/plat-mxc/epit.c
View File

@ -50,6 +50,7 @@
#include <linux/irq.h>
#include <linux/clockchips.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <mach/hardware.h>
#include <asm/mach/time.h>
@ -201,8 +202,16 @@ static int __init epit_clockevent_init(struct clk *timer_clk)
return 0;
}
void __init epit_timer_init(struct clk *timer_clk, void __iomem *base, int irq)
void __init epit_timer_init(void __iomem *base, int irq)
{
struct clk *timer_clk;
timer_clk = clk_get_sys("imx-epit.0", NULL);
if (IS_ERR(timer_clk)) {
pr_err("i.MX epit: unable to get clk\n");
return;
}
clk_prepare_enable(timer_clk);
timer_base = base;

4
arch/arm/plat-mxc/include/mach/common.h
View File

@ -54,8 +54,8 @@ extern void imx50_soc_init(void);
extern void imx51_soc_init(void);
extern void imx53_soc_init(void);
extern void imx51_init_late(void);
extern void epit_timer_init(struct clk *timer_clk, void __iomem *base, int irq);
extern void mxc_timer_init(struct clk *timer_clk, void __iomem *, int);
extern void epit_timer_init(void __iomem *base, int irq);
extern void mxc_timer_init(void __iomem *, int);
extern int mx1_clocks_init(unsigned long fref);
extern int mx21_clocks_init(unsigned long lref, unsigned long fref);
extern int mx25_clocks_init(void);

24
arch/arm/plat-mxc/time.c
View File

@ -58,6 +58,7 @@
/* MX31, MX35, MX25, MX5 */
#define V2_TCTL_WAITEN (1 << 3) /* Wait enable mode */
#define V2_TCTL_CLK_IPG (1 << 6)
#define V2_TCTL_CLK_PER (2 << 6)
#define V2_TCTL_FRR (1 << 9)
#define V2_IR 0x0c
#define V2_TSTAT 0x08
@ -280,23 +281,22 @@ static int __init mxc_clockevent_init(struct clk *timer_clk)
return 0;
}
void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq)
void __init mxc_timer_init(void __iomem *base, int irq)
{
uint32_t tctl_val;
struct clk *timer_clk;
struct clk *timer_ipg_clk;
if (!timer_clk) {
timer_clk = clk_get_sys("imx-gpt.0", "per");
if (IS_ERR(timer_clk)) {
pr_err("i.MX timer: unable to get clk\n");
return;
}
timer_ipg_clk = clk_get_sys("imx-gpt.0", "ipg");
if (!IS_ERR(timer_ipg_clk))
clk_prepare_enable(timer_ipg_clk);
timer_clk = clk_get_sys("imx-gpt.0", "per");
if (IS_ERR(timer_clk)) {
pr_err("i.MX timer: unable to get clk\n");
return;
}
timer_ipg_clk = clk_get_sys("imx-gpt.0", "ipg");
if (!IS_ERR(timer_ipg_clk))
clk_prepare_enable(timer_ipg_clk);
clk_prepare_enable(timer_clk);
timer_base = base;
@ -309,7 +309,7 @@ void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq)
__raw_writel(0, timer_base + MXC_TPRER); /* see datasheet note */
if (timer_is_v2())
tctl_val = V2_TCTL_CLK_IPG | V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN;
tctl_val = V2_TCTL_CLK_PER | V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN;
else
tctl_val = MX1_2_TCTL_FRR | MX1_2_TCTL_CLK_PCLK1 | MXC_TCTL_TEN;