* [PATCH 0/4] clk: at91: fix system clocks display for sam9x60
@ 2021-07-16 5:43 Claudiu Beznea
2021-07-16 5:43 ` [PATCH 1/4] clk: at91: clk-master: split master clock in pres and divider Claudiu Beznea
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: Claudiu Beznea @ 2021-07-16 5:43 UTC (permalink / raw)
To: sandeep.sheriker, eugen.hristev, lukma; +Cc: u-boot, Claudiu Beznea
Hi,
After added CCF support for SAM9X60 the CPU, crystal and master clocks
were not displayed correctly. These clocks are now displayed by at91_cpu driver.
Adapt master clock driver by adding control logic for its prescaler and
divider such that these to be correctly retrived by at91_cpu driver
via device tree (or any other mechanism).
Thank you,
Claudiu Beznea
Claudiu Beznea (4):
clk: at91: clk-master: split master clock in pres and divider
cpu: at91: add compatible for ARM9260EJ-S
ARM: dts: at91: sam9x60: add bindings for CPU
configs: sam9x60ek: enable CONFIG_CPU
arch/arm/dts/sam9x60.dtsi | 12 +++
configs/sam9x60ek_mmc_defconfig | 1 +
configs/sam9x60ek_nandflash_defconfig | 1 +
configs/sam9x60ek_qspiflash_defconfig | 1 +
drivers/clk/at91/clk-master.c | 107 +++++++++++++++++++++-----
drivers/clk/at91/pmc.h | 7 +-
drivers/clk/at91/sam9x60.c | 44 +++++++----
drivers/clk/at91/sama7g5.c | 36 +++++----
drivers/cpu/at91_cpu.c | 1 +
9 files changed, 160 insertions(+), 50 deletions(-)
--
2.25.1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 1/4] clk: at91: clk-master: split master clock in pres and divider
2021-07-16 5:43 [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Claudiu Beznea
@ 2021-07-16 5:43 ` Claudiu Beznea
2021-07-16 5:43 ` [PATCH 2/4] cpu: at91: add compatible for ARM9260EJ-S Claudiu Beznea
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Claudiu Beznea @ 2021-07-16 5:43 UTC (permalink / raw)
To: sandeep.sheriker, eugen.hristev, lukma; +Cc: u-boot, Claudiu Beznea
Split master clock in 2 controlling block: one for prescaler one for
divider. This will allow referencing correctly the CPU clock and
master clock in device trees.
Reported-by: Eugen Hristev <eugen.hristev@microchip.com>
Fixes: a64862284f65 ("clk: at91: sam9x60: add support compatible with
CCF")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/clk/at91/clk-master.c | 107 +++++++++++++++++++++++++++-------
drivers/clk/at91/pmc.h | 7 ++-
drivers/clk/at91/sam9x60.c | 44 +++++++++-----
drivers/clk/at91/sama7g5.c | 36 +++++++-----
4 files changed, 144 insertions(+), 50 deletions(-)
diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c
index 5d93e6a7e529..aec0bca7b3cb 100644
--- a/drivers/clk/at91/clk-master.c
+++ b/drivers/clk/at91/clk-master.c
@@ -12,13 +12,15 @@
#include <asm/processor.h>
#include <clk-uclass.h>
#include <common.h>
+#include <div64.h>
#include <dm.h>
#include <linux/clk-provider.h>
#include <linux/clk/at91_pmc.h>
#include "pmc.h"
-#define UBOOT_DM_CLK_AT91_MASTER "at91-master-clk"
+#define UBOOT_DM_CLK_AT91_MASTER_PRES "at91-master-clk-pres"
+#define UBOOT_DM_CLK_AT91_MASTER_DIV "at91-master-clk-div"
#define UBOOT_DM_CLK_AT91_SAMA7G5_MASTER "at91-sama7g5-master-clk"
#define MASTER_PRES_MASK 0x7
@@ -73,7 +75,7 @@ static int clk_master_enable(struct clk *clk)
return 0;
}
-static ulong clk_master_get_rate(struct clk *clk)
+static ulong clk_master_pres_get_rate(struct clk *clk)
{
struct clk_master *master = to_clk_master(clk);
const struct clk_master_layout *layout = master->layout;
@@ -81,7 +83,7 @@ static ulong clk_master_get_rate(struct clk *clk)
master->characteristics;
ulong rate = clk_get_parent_rate(clk);
unsigned int mckr;
- u8 pres, div;
+ u8 pres;
if (!rate)
return 0;
@@ -90,29 +92,21 @@ static ulong clk_master_get_rate(struct clk *clk)
mckr &= layout->mask;
pres = (mckr >> layout->pres_shift) & MASTER_PRES_MASK;
- div = (mckr >> MASTER_DIV_SHIFT) & MASTER_DIV_MASK;
if (characteristics->have_div3_pres && pres == MASTER_PRES_MAX)
- rate /= 3;
+ pres = 3;
else
- rate >>= pres;
-
- rate /= characteristics->divisors[div];
-
- if (rate < characteristics->output.min)
- pr_warn("master clk is underclocked");
- else if (rate > characteristics->output.max)
- pr_warn("master clk is overclocked");
+ pres = (1 << pres);
- return rate;
+ return DIV_ROUND_CLOSEST_ULL(rate, pres);
}
-static const struct clk_ops master_ops = {
+static const struct clk_ops master_pres_ops = {
.enable = clk_master_enable,
- .get_rate = clk_master_get_rate,
+ .get_rate = clk_master_pres_get_rate,
};
-struct clk *at91_clk_register_master(void __iomem *base,
+struct clk *at91_clk_register_master_pres(void __iomem *base,
const char *name, const char * const *parent_names,
int num_parents, const struct clk_master_layout *layout,
const struct clk_master_characteristics *characteristics,
@@ -140,7 +134,7 @@ struct clk *at91_clk_register_master(void __iomem *base,
pmc_read(master->base, master->layout->offset, &val);
clk = &master->clk;
clk->flags = CLK_GET_RATE_NOCACHE | CLK_IS_CRITICAL;
- ret = clk_register(clk, UBOOT_DM_CLK_AT91_MASTER, name,
+ ret = clk_register(clk, UBOOT_DM_CLK_AT91_MASTER_PRES, name,
parent_names[val & AT91_PMC_CSS]);
if (ret) {
kfree(master);
@@ -150,10 +144,81 @@ struct clk *at91_clk_register_master(void __iomem *base,
return clk;
}
-U_BOOT_DRIVER(at91_master_clk) = {
- .name = UBOOT_DM_CLK_AT91_MASTER,
+U_BOOT_DRIVER(at91_master_pres_clk) = {
+ .name = UBOOT_DM_CLK_AT91_MASTER_PRES,
+ .id = UCLASS_CLK,
+ .ops = &master_pres_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};
+
+static ulong clk_master_div_get_rate(struct clk *clk)
+{
+ struct clk_master *master = to_clk_master(clk);
+ const struct clk_master_layout *layout = master->layout;
+ const struct clk_master_characteristics *characteristics =
+ master->characteristics;
+ ulong rate = clk_get_parent_rate(clk);
+ unsigned int mckr;
+ u8 div;
+
+ if (!rate)
+ return 0;
+
+ pmc_read(master->base, master->layout->offset, &mckr);
+ mckr &= layout->mask;
+ div = (mckr >> MASTER_DIV_SHIFT) & MASTER_DIV_MASK;
+
+ rate = DIV_ROUND_CLOSEST_ULL(rate, characteristics->divisors[div]);
+ if (rate < characteristics->output.min)
+ pr_warn("master clk is underclocked");
+ else if (rate > characteristics->output.max)
+ pr_warn("master clk is overclocked");
+
+ return rate;
+}
+
+static const struct clk_ops master_div_ops = {
+ .enable = clk_master_enable,
+ .get_rate = clk_master_div_get_rate,
+};
+
+struct clk *at91_clk_register_master_div(void __iomem *base,
+ const char *name, const char *parent_name,
+ const struct clk_master_layout *layout,
+ const struct clk_master_characteristics *characteristics)
+{
+ struct clk_master *master;
+ struct clk *clk;
+ int ret;
+
+ if (!base || !name || !parent_name || !layout || !characteristics)
+ return ERR_PTR(-EINVAL);
+
+ master = kzalloc(sizeof(*master), GFP_KERNEL);
+ if (!master)
+ return ERR_PTR(-ENOMEM);
+
+ master->layout = layout;
+ master->characteristics = characteristics;
+ master->base = base;
+ master->num_parents = 1;
+
+ clk = &master->clk;
+ clk->flags = CLK_GET_RATE_NOCACHE | CLK_IS_CRITICAL;
+ ret = clk_register(clk, UBOOT_DM_CLK_AT91_MASTER_DIV, name,
+ parent_name);
+ if (ret) {
+ kfree(master);
+ clk = ERR_PTR(ret);
+ }
+
+ return clk;
+}
+
+U_BOOT_DRIVER(at91_master_div_clk) = {
+ .name = UBOOT_DM_CLK_AT91_MASTER_DIV,
.id = UCLASS_CLK,
- .ops = &master_ops,
+ .ops = &master_div_ops,
.flags = DM_FLAG_PRE_RELOC,
};
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index f07f535e492d..2b4dd9a3d96c 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -97,12 +97,17 @@ sam9x60_clk_register_frac_pll(void __iomem *base, const char *name,
const struct clk_pll_characteristics *characteristics,
const struct clk_pll_layout *layout, bool critical);
struct clk *
-at91_clk_register_master(void __iomem *base, const char *name,
+at91_clk_register_master_pres(void __iomem *base, const char *name,
const char * const *parent_names, int num_parents,
const struct clk_master_layout *layout,
const struct clk_master_characteristics *characteristics,
const u32 *mux_table);
struct clk *
+at91_clk_register_master_div(void __iomem *base,
+ const char *name, const char *parent_name,
+ const struct clk_master_layout *layout,
+ const struct clk_master_characteristics *characteristics);
+struct clk *
at91_clk_sama7g5_register_master(void __iomem *base, const char *name,
const char * const *parent_names, int num_parents,
const u32 *mux_table, const u32 *clk_mux_table,
diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
index 9e9a643d62d7..4d00ee2ddc37 100644
--- a/drivers/clk/at91/sam9x60.c
+++ b/drivers/clk/at91/sam9x60.c
@@ -31,7 +31,7 @@
* @ID_PLL_A_FRAC: APLL fractional clock identifier
* @ID_PLL_A_DIV: APLL divider clock identifier
- * @ID_MCK: MCK clock identifier
+ * @ID_MCK_DIV: MCK DIV clock identifier
* @ID_UTMI: UTMI clock identifier
@@ -43,6 +43,8 @@
* @ID_DDR: DDR system clock identifier
* @ID_QSPI: QSPI system clock identifier
*
+ * @ID_MCK_PRES: MCK PRES clock identifier
+ *
* Note: if changing the values of this enums please sync them with
* device tree
*/
@@ -60,7 +62,7 @@ enum pmc_clk_ids {
ID_PLL_A_FRAC = 9,
ID_PLL_A_DIV = 10,
- ID_MCK = 11,
+ ID_MCK_DIV = 11,
ID_UTMI = 12,
@@ -73,6 +75,8 @@ enum pmc_clk_ids {
ID_DDR = 17,
ID_QSPI = 18,
+ ID_MCK_PRES = 19,
+
ID_MAX,
};
@@ -93,7 +97,8 @@ static const char *clk_names[] = {
[ID_MAINCK] = "mainck",
[ID_PLL_U_DIV] = "upll_divpmcck",
[ID_PLL_A_DIV] = "plla_divpmcck",
- [ID_MCK] = "mck",
+ [ID_MCK_PRES] = "mck_pres",
+ [ID_MCK_DIV] = "mck_div",
};
/* Fractional PLL output range. */
@@ -260,10 +265,10 @@ static const struct {
u8 id;
u8 cid;
} sam9x60_systemck[] = {
- { .n = "ddrck", .p = "mck", .id = 2, .cid = ID_DDR, },
+ { .n = "ddrck", .p = "mck_pres", .id = 2, .cid = ID_DDR, },
{ .n = "pck0", .p = "prog0", .id = 8, .cid = ID_PCK0, },
{ .n = "pck1", .p = "prog1", .id = 9, .cid = ID_PCK1, },
- { .n = "qspick", .p = "mck", .id = 19, .cid = ID_QSPI, },
+ { .n = "qspick", .p = "mck_pres", .id = 19, .cid = ID_QSPI, },
};
/**
@@ -508,7 +513,7 @@ static int sam9x60_clk_probe(struct udevice *dev)
clk_dm(AT91_TO_CLK_ID(PMC_TYPE_CORE, sam9x60_plls[i].cid), c);
}
- /* Register MCK clock. */
+ /* Register MCK pres clock. */
p[0] = clk_names[ID_MD_SLCK];
p[1] = clk_names[ID_MAINCK];
p[2] = clk_names[ID_PLL_A_DIV];
@@ -519,25 +524,36 @@ static int sam9x60_clk_probe(struct udevice *dev)
cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_U_DIV);
prepare_mux_table(clkmuxallocs, clkmuxallocindex, tmpclkmux, cm, 4,
fail);
- c = at91_clk_register_master(base, clk_names[ID_MCK], p, 4, &mck_layout,
- &mck_characteristics, tmpclkmux);
+ c = at91_clk_register_master_pres(base, clk_names[ID_MCK_PRES], p, 4,
+ &mck_layout, &mck_characteristics,
+ tmpclkmux);
+ if (IS_ERR(c)) {
+ ret = PTR_ERR(c);
+ goto fail;
+ }
+ clk_dm(AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK_PRES), c);
+
+ /* Register MCK div clock. */
+ c = at91_clk_register_master_div(base, clk_names[ID_MCK_DIV],
+ clk_names[ID_MCK_PRES],
+ &mck_layout, &mck_characteristics);
if (IS_ERR(c)) {
ret = PTR_ERR(c);
goto fail;
}
- clk_dm(AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK), c);
+ clk_dm(AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK_DIV), c);
/* Register programmable clocks. */
p[0] = clk_names[ID_MD_SLCK];
p[1] = clk_names[ID_TD_SLCK];
p[2] = clk_names[ID_MAINCK];
- p[3] = clk_names[ID_MCK];
+ p[3] = clk_names[ID_MCK_DIV];
p[4] = clk_names[ID_PLL_A_DIV];
p[5] = clk_names[ID_PLL_U_DIV];
cm[0] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MD_SLCK);
cm[1] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_TD_SLCK);
cm[2] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MAINCK);
- cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK);
+ cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK_DIV);
cm[4] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_A_DIV);
cm[5] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_U_DIV);
for (i = 0; i < ARRAY_SIZE(sam9x60_prog); i++) {
@@ -572,7 +588,7 @@ static int sam9x60_clk_probe(struct udevice *dev)
for (i = 0; i < ARRAY_SIZE(sam9x60_periphck); i++) {
c = at91_clk_register_sam9x5_peripheral(base, &pcr_layout,
sam9x60_periphck[i].n,
- clk_names[ID_MCK],
+ clk_names[ID_MCK_DIV],
sam9x60_periphck[i].id,
&r);
if (IS_ERR(c)) {
@@ -587,7 +603,7 @@ static int sam9x60_clk_probe(struct udevice *dev)
p[0] = clk_names[ID_MD_SLCK];
p[1] = clk_names[ID_TD_SLCK];
p[2] = clk_names[ID_MAINCK];
- p[3] = clk_names[ID_MCK];
+ p[3] = clk_names[ID_MCK_DIV];
p[4] = clk_names[ID_PLL_A_DIV];
p[5] = clk_names[ID_PLL_U_DIV];
m[0] = 0;
@@ -599,7 +615,7 @@ static int sam9x60_clk_probe(struct udevice *dev)
cm[0] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MD_SLCK);
cm[1] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_TD_SLCK);
cm[2] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MAINCK);
- cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK);
+ cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK_DIV);
cm[4] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_A_DIV);
cm[5] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_U_DIV);
for (i = 0; i < ARRAY_SIZE(sam9x60_gck); i++) {
diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
index c0d9271966d3..d1ec3c82b547 100644
--- a/drivers/clk/at91/sama7g5.c
+++ b/drivers/clk/at91/sama7g5.c
@@ -44,7 +44,8 @@
* @ID_PLL_ETH_FRAC: Ethernet PLL fractional clock identifier
* @ID_PLL_ETH_DIV: Ethernet PLL divider clock identifier
- * @ID_MCK0: MCK0 clock identifier
+ * @ID_MCK0_PRES: MCK0 PRES clock identifier
+ * @ID_MCK0_DIV: MCK0 DIV clock identifier
* @ID_MCK1: MCK1 clock identifier
* @ID_MCK2: MCK2 clock identifier
* @ID_MCK3: MCK3 clock identifier
@@ -95,7 +96,7 @@ enum pmc_clk_ids {
ID_PLL_ETH_FRAC = 20,
ID_PLL_ETH_DIV = 21,
- ID_MCK0 = 22,
+ ID_MCK0_DIV = 22,
ID_MCK1 = 23,
ID_MCK2 = 24,
ID_MCK3 = 25,
@@ -121,6 +122,8 @@ enum pmc_clk_ids {
ID_PCK6 = 42,
ID_PCK7 = 43,
+ ID_MCK0_PRES = 44,
+
ID_MAX,
};
@@ -147,7 +150,8 @@ static const char *clk_names[] = {
[ID_PLL_AUDIO_DIVPMC] = "audiopll_divpmcck",
[ID_PLL_AUDIO_DIVIO] = "audiopll_diviock",
[ID_PLL_ETH_DIV] = "ethpll_divpmcck",
- [ID_MCK0] = "mck0",
+ [ID_MCK0_DIV] = "mck0_div",
+ [ID_MCK0_PRES] = "mck0_pres",
};
/* Fractional PLL output range. */
@@ -504,7 +508,7 @@ static const struct {
struct clk_range r;
u8 id;
} sama7g5_periphck[] = {
- { .n = "pioA_clk", .p = "mck0", .id = 11, },
+ { .n = "pioA_clk", .p = "mck0_div", .id = 11, },
{ .n = "sfr_clk", .p = "mck1", .id = 19, },
{ .n = "hsmc_clk", .p = "mck1", .id = 21, },
{ .n = "xdmac0_clk", .p = "mck1", .id = 22, },
@@ -514,7 +518,7 @@ static const struct {
{ .n = "aes_clk", .p = "mck1", .id = 27, },
{ .n = "tzaesbasc_clk", .p = "mck1", .id = 28, },
{ .n = "asrc_clk", .p = "mck1", .id = 30, .r = { .max = 200000000, }, },
- { .n = "cpkcc_clk", .p = "mck0", .id = 32, },
+ { .n = "cpkcc_clk", .p = "mck0_div", .id = 32, },
{ .n = "csi_clk", .p = "mck3", .id = 33, .r = { .max = 266000000, }, },
{ .n = "csi2dc_clk", .p = "mck3", .id = 34, .r = { .max = 266000000, }, },
{ .n = "eic_clk", .p = "mck1", .id = 37, },
@@ -1210,7 +1214,7 @@ static int sama7g5_clk_probe(struct udevice *dev)
sama7g5_plls[i].c));
}
- /* Register MCK0 clock. */
+ /* Register MCK0_PRES clock. */
p[0] = clk_names[ID_MD_SLCK];
p[1] = clk_names[ID_MAINCK];
p[2] = clk_names[ID_PLL_CPU_DIV];
@@ -1221,15 +1225,19 @@ static int sama7g5_clk_probe(struct udevice *dev)
cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_SYS_DIV);
prepare_mux_table(clkmuxallocs, clkmuxallocindex, tmpclkmux, cm, 2,
fail);
- clk_dm(AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0),
- at91_clk_register_master(base, clk_names[ID_MCK0], p,
+ clk_dm(AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0_PRES),
+ at91_clk_register_master_pres(base, clk_names[ID_MCK0_PRES], p,
4, &mck0_layout, &mck0_characteristics, tmpclkmux));
+ clk_dm(AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0_DIV),
+ at91_clk_register_master_div(base, clk_names[ID_MCK0_DIV],
+ clk_names[ID_MCK0_PRES], &mck0_layout, &mck0_characteristics));
+
/* Register MCK1-4 clocks. */
p[0] = clk_names[ID_MD_SLCK];
p[1] = clk_names[ID_TD_SLCK];
p[2] = clk_names[ID_MAINCK];
- p[3] = clk_names[ID_MCK0];
+ p[3] = clk_names[ID_MCK0_DIV];
m[0] = 0;
m[1] = 1;
m[2] = 2;
@@ -1237,7 +1245,7 @@ static int sama7g5_clk_probe(struct udevice *dev)
cm[0] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MD_SLCK);
cm[1] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_TD_SLCK);
cm[2] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MAINCK);
- cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0);
+ cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0_DIV);
for (i = 0; i < ARRAY_SIZE(sama7g5_mckx); i++) {
for (j = 0; j < sama7g5_mckx[i].ep_count; j++) {
p[4 + j] = sama7g5_mckx[i].ep[j];
@@ -1267,7 +1275,7 @@ static int sama7g5_clk_probe(struct udevice *dev)
p[0] = clk_names[ID_MD_SLCK];
p[1] = clk_names[ID_TD_SLCK];
p[2] = clk_names[ID_MAINCK];
- p[3] = clk_names[ID_MCK0];
+ p[3] = clk_names[ID_MCK0_DIV];
p[4] = clk_names[ID_PLL_SYS_DIV];
p[5] = clk_names[ID_PLL_DDR_DIV];
p[6] = clk_names[ID_PLL_IMG_DIV];
@@ -1277,7 +1285,7 @@ static int sama7g5_clk_probe(struct udevice *dev)
cm[0] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MD_SLCK);
cm[1] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_TD_SLCK);
cm[2] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MAINCK);
- cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0);
+ cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0_DIV);
cm[4] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_SYS_DIV);
cm[5] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_DDR_DIV);
cm[6] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_PLL_IMG_DIV);
@@ -1315,7 +1323,7 @@ static int sama7g5_clk_probe(struct udevice *dev)
p[0] = clk_names[ID_MD_SLCK];
p[1] = clk_names[ID_TD_SLCK];
p[2] = clk_names[ID_MAINCK];
- p[3] = clk_names[ID_MCK0];
+ p[3] = clk_names[ID_MCK0_DIV];
m[0] = 0;
m[1] = 1;
m[2] = 2;
@@ -1323,7 +1331,7 @@ static int sama7g5_clk_probe(struct udevice *dev)
cm[0] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MD_SLCK);
cm[1] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_TD_SLCK);
cm[2] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MAINCK);
- cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0);
+ cm[3] = AT91_TO_CLK_ID(PMC_TYPE_CORE, ID_MCK0_DIV);
for (i = 0; i < ARRAY_SIZE(sama7g5_gck); i++) {
for (j = 0; j < sama7g5_gck[i].ep_count; j++) {
p[4 + j] = sama7g5_gck[i].ep[j];
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/4] cpu: at91: add compatible for ARM9260EJ-S
2021-07-16 5:43 [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Claudiu Beznea
2021-07-16 5:43 ` [PATCH 1/4] clk: at91: clk-master: split master clock in pres and divider Claudiu Beznea
@ 2021-07-16 5:43 ` Claudiu Beznea
2021-07-16 5:43 ` [PATCH 3/4] ARM: dts: at91: sam9x60: add bindings for CPU Claudiu Beznea
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Claudiu Beznea @ 2021-07-16 5:43 UTC (permalink / raw)
To: sandeep.sheriker, eugen.hristev, lukma; +Cc: u-boot, Claudiu Beznea
The crystal, CPU and master clock were not displayed correctly on SAM9X60
after adding CCF clock support. Add compatible for ARM926EJ-S to fix
this.
Reported-by: Eugen Hristev <eugen.hristev@microchip.com>
Fixes: a64862284f65 ("clk: at91: sam9x60: add support compatible with CCF")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/cpu/at91_cpu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/cpu/at91_cpu.c b/drivers/cpu/at91_cpu.c
index 9ef1b3102cd1..34a3f61c7e95 100644
--- a/drivers/cpu/at91_cpu.c
+++ b/drivers/cpu/at91_cpu.c
@@ -70,6 +70,7 @@ static const struct cpu_ops at91_cpu_ops = {
static const struct udevice_id at91_cpu_ids[] = {
{ .compatible = "arm,cortex-a7" },
+ { .compatible = "arm,arm926ej-s" },
{ /* Sentinel. */ }
};
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 3/4] ARM: dts: at91: sam9x60: add bindings for CPU
2021-07-16 5:43 [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Claudiu Beznea
2021-07-16 5:43 ` [PATCH 1/4] clk: at91: clk-master: split master clock in pres and divider Claudiu Beznea
2021-07-16 5:43 ` [PATCH 2/4] cpu: at91: add compatible for ARM9260EJ-S Claudiu Beznea
@ 2021-07-16 5:43 ` Claudiu Beznea
2021-07-16 5:43 ` [PATCH 4/4] configs: sam9x60ek: enable CONFIG_CPU Claudiu Beznea
2021-08-18 10:46 ` [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Eugen.Hristev
4 siblings, 0 replies; 6+ messages in thread
From: Claudiu Beznea @ 2021-07-16 5:43 UTC (permalink / raw)
To: sandeep.sheriker, eugen.hristev, lukma; +Cc: u-boot, Claudiu Beznea
Add bindings for CPU. This will allow displaying correctly the crystal,
CPU and master clock.
Reported-by: Eugen Hristev <eugen.hristev@microchip.com>
Fixes: a64862284f65 ("clk: at91: sam9x60: add support compatible with
CCF")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
arch/arm/dts/sam9x60.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm/dts/sam9x60.dtsi b/arch/arm/dts/sam9x60.dtsi
index 007646fcb43a..e801331d80a1 100644
--- a/arch/arm/dts/sam9x60.dtsi
+++ b/arch/arm/dts/sam9x60.dtsi
@@ -50,6 +50,18 @@
};
};
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ARM9260_0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,arm926ej-s";
+ clocks = <&pmc PMC_TYPE_CORE 19>, <&pmc PMC_TYPE_CORE 11>, <&main_xtal>;
+ clock-names = "cpu", "master", "xtal";
+ };
+ };
+
ahb {
compatible = "simple-bus";
#address-cells = <1>;
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 4/4] configs: sam9x60ek: enable CONFIG_CPU
2021-07-16 5:43 [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Claudiu Beznea
` (2 preceding siblings ...)
2021-07-16 5:43 ` [PATCH 3/4] ARM: dts: at91: sam9x60: add bindings for CPU Claudiu Beznea
@ 2021-07-16 5:43 ` Claudiu Beznea
2021-08-18 10:46 ` [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Eugen.Hristev
4 siblings, 0 replies; 6+ messages in thread
From: Claudiu Beznea @ 2021-07-16 5:43 UTC (permalink / raw)
To: sandeep.sheriker, eugen.hristev, lukma; +Cc: u-boot, Claudiu Beznea
Enable CONFIG_CPU for SAM9X60EK configs.
Reported-by: Eugen Hristev <eugen.hristev@microchip.com>
Fixes: a64862284f65 ("clk: at91: sam9x60: add support compatible with
CCF")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
configs/sam9x60ek_mmc_defconfig | 1 +
configs/sam9x60ek_nandflash_defconfig | 1 +
configs/sam9x60ek_qspiflash_defconfig | 1 +
3 files changed, 3 insertions(+)
diff --git a/configs/sam9x60ek_mmc_defconfig b/configs/sam9x60ek_mmc_defconfig
index 818999793804..a641fe6cf508 100644
--- a/configs/sam9x60ek_mmc_defconfig
+++ b/configs/sam9x60ek_mmc_defconfig
@@ -44,6 +44,7 @@ CONFIG_CLK_CCF=y
CONFIG_CLK_AT91=y
CONFIG_AT91_GENERIC_CLK=y
CONFIG_AT91_SAM9X60_PLL=y
+CONFIG_CPU=y
CONFIG_AT91_GPIO=y
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_AT91=y
diff --git a/configs/sam9x60ek_nandflash_defconfig b/configs/sam9x60ek_nandflash_defconfig
index f4ba3485f19a..ef8c77876413 100644
--- a/configs/sam9x60ek_nandflash_defconfig
+++ b/configs/sam9x60ek_nandflash_defconfig
@@ -46,6 +46,7 @@ CONFIG_CLK_CCF=y
CONFIG_CLK_AT91=y
CONFIG_AT91_GENERIC_CLK=y
CONFIG_AT91_SAM9X60_PLL=y
+CONFIG_CPU=y
CONFIG_AT91_GPIO=y
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_AT91=y
diff --git a/configs/sam9x60ek_qspiflash_defconfig b/configs/sam9x60ek_qspiflash_defconfig
index 29071e802fab..1f9d292560bb 100644
--- a/configs/sam9x60ek_qspiflash_defconfig
+++ b/configs/sam9x60ek_qspiflash_defconfig
@@ -54,6 +54,7 @@ CONFIG_CLK_CCF=y
CONFIG_CLK_AT91=y
CONFIG_AT91_GENERIC_CLK=y
CONFIG_AT91_SAM9X60_PLL=y
+CONFIG_CPU=y
CONFIG_AT91_GPIO=y
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_AT91=y
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 0/4] clk: at91: fix system clocks display for sam9x60
2021-07-16 5:43 [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Claudiu Beznea
` (3 preceding siblings ...)
2021-07-16 5:43 ` [PATCH 4/4] configs: sam9x60ek: enable CONFIG_CPU Claudiu Beznea
@ 2021-08-18 10:46 ` Eugen.Hristev
4 siblings, 0 replies; 6+ messages in thread
From: Eugen.Hristev @ 2021-08-18 10:46 UTC (permalink / raw)
To: Claudiu.Beznea, Sandeep.Sheriker, lukma; +Cc: u-boot
On 7/16/21 8:43 AM, Claudiu Beznea wrote:
> Hi,
>
> After added CCF support for SAM9X60 the CPU, crystal and master clocks
> were not displayed correctly. These clocks are now displayed by at91_cpu driver.
> Adapt master clock driver by adding control logic for its prescaler and
> divider such that these to be correctly retrived by at91_cpu driver
> via device tree (or any other mechanism).
>
> Thank you,
> Claudiu Beznea
>
> Claudiu Beznea (4):
> clk: at91: clk-master: split master clock in pres and divider
> cpu: at91: add compatible for ARM9260EJ-S
> ARM: dts: at91: sam9x60: add bindings for CPU
> configs: sam9x60ek: enable CONFIG_CPU
>
> arch/arm/dts/sam9x60.dtsi | 12 +++
> configs/sam9x60ek_mmc_defconfig | 1 +
> configs/sam9x60ek_nandflash_defconfig | 1 +
> configs/sam9x60ek_qspiflash_defconfig | 1 +
> drivers/clk/at91/clk-master.c | 107 +++++++++++++++++++++-----
> drivers/clk/at91/pmc.h | 7 +-
> drivers/clk/at91/sam9x60.c | 44 +++++++----
> drivers/clk/at91/sama7g5.c | 36 +++++----
> drivers/cpu/at91_cpu.c | 1 +
> 9 files changed, 160 insertions(+), 50 deletions(-)
>
Applied series to u-boot-atmel/next, thanks !
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-08-18 10:46 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-16 5:43 [PATCH 0/4] clk: at91: fix system clocks display for sam9x60 Claudiu Beznea
2021-07-16 5:43 ` [PATCH 1/4] clk: at91: clk-master: split master clock in pres and divider Claudiu Beznea
2021-07-16 5:43 ` [PATCH 2/4] cpu: at91: add compatible for ARM9260EJ-S Claudiu Beznea
2021-07-16 5:43 ` [PATCH 3/4] ARM: dts: at91: sam9x60: add bindings for CPU Claudiu Beznea
2021-07-16 5:43 ` [PATCH 4/4] configs: sam9x60ek: enable CONFIG_CPU Claudiu Beznea
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