[U-Boot] [PATCH V2 11/12] ARM: DRA7xx: clocks: Update PLL values

Lokesh Vutla
2013-05-30T13:19:38Z

Update PLL values.
SYS_CLKSEL value for 20MHz is changed to 2. In other platforms
SYS_CLKSEL value 2 represents reserved. But in sys_clk array
ind 1 is used for 13Mhz. Since other platforms are not using
13Mhz, reusing index 1 for 20MHz.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
---
arch/arm/cpu/armv7/omap-common/clocks-common.c | 16 ++---
arch/arm/cpu/armv7/omap5/hw_data.c | 87 +++++++++++++++---------
arch/arm/cpu/armv7/omap5/prcm-regs.c | 1 +
arch/arm/include/asm/arch-omap4/clock.h | 2 +-
arch/arm/include/asm/arch-omap5/clock.h | 8 ++-
arch/arm/include/asm/omap_common.h | 3 +-
include/configs/dra7xx_evm.h | 2 +
7 files changed, 73 insertions(+), 46 deletions(-)

diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index 64fffd3..2e5a01e 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -50,13 +50,12 @@

const u32 sys_clk_array[8] = {
12000000, /* 12 MHz */
- 13000000, /* 13 MHz */
+ 20000000, /* 20 MHz */
16800000, /* 16.8 MHz */
19200000, /* 19.2 MHz */
26000000, /* 26 MHz */
27000000, /* 27 MHz */
38400000, /* 38.4 MHz */
- 20000000, /* 20 MHz */
};

static inline u32 __get_sys_clk_index(void)
@@ -75,13 +74,6 @@ static inline u32 __get_sys_clk_index(void)
/* SYS_CLKSEL - 1 to match the dpll param array indices */
ind = (readl((*prcm)->cm_sys_clksel) &
CM_SYS_CLKSEL_SYS_CLKSEL_MASK) - 1;
- /*
- * SYS_CLKSEL value for 20MHz is 0. This is introduced newly
- * in DRA7XX socs. SYS_CLKSEL -1 will be greater than
- * NUM_SYS_CLK. So considering the last 3 bits as the index
- * for the dpll param array.
- */
- ind &= CM_SYS_CLKSEL_SYS_CLKSEL_MASK;
}
return ind;
}
@@ -441,6 +433,12 @@ static void setup_non_essential_dplls(void)
params = get_abe_dpll_params(*dplls_data);
#ifdef CONFIG_SYS_OMAP_ABE_SYSCK
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK;
+
+ if (omap_revision() == DRA752_ES1_0)
+ /* Select the sys clk for dpll_abe */
+ clrsetbits_le32((*prcm)->cm_abe_pll_sys_clksel,
+ CM_CLKSEL_ABE_PLL_SYS_CLKSEL_MASK,
+ CM_ABE_PLL_SYS_CLKSEL_SYSCLK2);
#else
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK;
/*
diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index bddcaed..44552c3 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -100,14 +100,13 @@ static const struct dpll_params mpu_dpll_params_499mhz[NUM_SYS_CLKS] = {
};

static const struct dpll_params mpu_dpll_params_1ghz[NUM_SYS_CLKS] = {
- {250, 2, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
- {119, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
- {625, 11, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
- {500, 12, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+ {250, 2, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {500, 9, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 20 MHz */
+ {119, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {625, 11, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {500, 12, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
- {625, 23, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 38.4 MHz */
- {50, 0, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1} /* 20 MHz */
+ {625, 23, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 38.4 MHz */
};

static const struct dpll_params
@@ -133,15 +132,14 @@ static const struct dpll_params
};

static const struct dpll_params
- core_dpll_params_2128mhz_ddr532_dra7xx[NUM_SYS_CLKS] = {
- {266, 2, 2, -1, -1, 4, 62, 5, -1, 5, 7, 6}, /* 12 MHz */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
- {443, 6, 2, -1, -1, 4, 62, 5, -1, 5, 7, 6}, /* 16.8 MHz */
- {277, 4, 2, -1, -1, 4, 62, 5, -1, 5, 7, 6}, /* 19.2 MHz */
- {368, 8, 2, -1, -1, 4, 62, 5, -1, 5, 7, 6}, /* 26 MHz */
+ core_dpll_params_2128mhz_dra7xx[NUM_SYS_CLKS] = {
+ {266, 2, 2, 1, -1, 4, 62, 5, -1, 5, 4, 6}, /* 12 MHz */
+ {266, 4, 2, 1, -1, 4, 62, 5, -1, 5, 4, 6}, /* 20 MHz */
+ {443, 6, 2, 1, -1, 4, 62, 5, -1, 5, 4, 6}, /* 16.8 MHz */
+ {277, 4, 2, 1, -1, 4, 62, 5, -1, 5, 4, 6}, /* 19.2 MHz */
+ {368, 8, 2, 1, -1, 4, 62, 5, -1, 5, 4, 6}, /* 26 MHz */
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
- {277, 9, 2, -1, -1, 4, 62, 5, -1, 5, 7, 6}, /* 38.4 MHz */
- {266, 4, 2, -1, -1, 4, 62, 5, -1, 5, 7, 6} /* 20 MHz */
+ {277, 9, 2, 1, -1, 4, 62, 5, -1, 5, 4, 6}, /* 38.4 MHz */
};

static const struct dpll_params
@@ -187,14 +185,13 @@ static const struct dpll_params per_dpll_params_768mhz_es2[NUM_SYS_CLKS] = {
};

static const struct dpll_params per_dpll_params_768mhz_dra7xx[NUM_SYS_CLKS] = {
- {32, 0, 4, -1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 12 MHz */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
- {160, 6, 4, -1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 16.8 MHz */
- {20, 0, 4, -1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 19.2 MHz */
- {192, 12, 4, -1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 26 MHz */
+ {32, 0, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 12 MHz */
+ {96, 4, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 20 MHz */
+ {160, 6, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 16.8 MHz */
+ {20, 0, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 19.2 MHz */
+ {192, 12, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 26 MHz */
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
- {10, 0, 4, -1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 38.4 MHz */
- {96, 4, 4, -1, 3, 4, 10, 2, -1, -1, -1, -1} /* 20 MHz */
+ {10, 0, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1}, /* 38.4 MHz */
};

static const struct dpll_params iva_dpll_params_2330mhz[NUM_SYS_CLKS] = {
@@ -207,6 +204,16 @@ static const struct dpll_params iva_dpll_params_2330mhz[NUM_SYS_CLKS] = {
{91, 2, -1, -1, 5, 6, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */
};

+static const struct dpll_params iva_dpll_params_2330mhz_dra7xx[NUM_SYS_CLKS] = {
+ {1165, 11, 3, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {233, 3, 3, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 20 MHz */
+ {208, 2, 3, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {182, 2, 3, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {224, 4, 3, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {91, 2, 3, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 38.4 MHz */
+};
+
/* ABE M & N values with sys_clk as source */
static const struct dpll_params
abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = {
@@ -224,26 +231,36 @@ static const struct dpll_params abe_dpll_params_32k_196608khz = {
750, 0, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1
};

+/* ABE M & N values with sysclk2(22.5792 MHz) as input */
+static const struct dpll_params
+ abe_dpll_params_sysclk2_361267khz[NUM_SYS_CLKS] = {
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {16, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 20 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 38.4 MHz */
+};
+
static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = {
{400, 4, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {480, 9, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 20 MHz */
{400, 6, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
{400, 7, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
{480, 12, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
{400, 15, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 38.4 MHz */
- {48, 0, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1} /* 20 MHz */
};

-static const struct dpll_params ddr_dpll_params_1066mhz[NUM_SYS_CLKS] = {
- {533, 11, 1, 1, 4, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
- {222, 6, 1, 1, 4, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
- {111, 3, 1, 1, 4, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
- {41, 1, 1, 1, 4, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+static const struct dpll_params ddr_dpll_params_2128mhz[NUM_SYS_CLKS] = {
+ {266, 2, 2, 1, 8, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {266, 4, 2, 1, 8, -1, -1, -1, -1, -1, -1, -1}, /* 20 MHz */
+ {190, 2, 2, 1, 8, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {665, 11, 2, 1, 8, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {532, 12, 2, 1, 8, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
- {347, 24, 1, 1, 4, -1, -1, -1, -1, -1, -1, -1}, /* 38.4 MHz */
- {533, 19, 1, 1, 4, -1, -1, -1, -1, -1, -1, -1} /* 20 MHz */
+ {665, 23, 2, 1, 8, -1, -1, -1, -1, -1, -1, -1}, /* 38.4 MHz */
};

struct dplls omap5_dplls_es1 = {
@@ -276,10 +293,12 @@ struct dplls omap5_dplls_es2 = {

struct dplls dra7xx_dplls = {
.mpu = mpu_dpll_params_1ghz,
- .core = core_dpll_params_2128mhz_ddr532_dra7xx,
+ .core = core_dpll_params_2128mhz_dra7xx,
.per = per_dpll_params_768mhz_dra7xx,
+ .abe = abe_dpll_params_sysclk2_361267khz,
+ .iva = iva_dpll_params_2330mhz_dra7xx,
.usb = usb_dpll_params_1920mhz,
- .ddr = ddr_dpll_params_1066mhz,
+ .ddr = ddr_dpll_params_2128mhz,
};

struct pmic_data palmas = {
diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
index db779f2..fdf204f 100644
--- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
+++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
@@ -943,6 +943,7 @@ struct prcm_regs const dra7xx_prcm = {
/* l4 wkup regs */
.cm_abe_pll_ref_clksel = 0x4ae0610c,
.cm_sys_clksel = 0x4ae06110,
+ .cm_abe_pll_sys_clksel = 0x4ae06118,
.cm_wkup_clkstctrl = 0x4ae07800,
.cm_wkup_l4wkup_clkctrl = 0x4ae07820,
.cm_wkup_wdtimer1_clkctrl = 0x4ae07828,
diff --git a/arch/arm/include/asm/arch-omap4/clock.h b/arch/arm/include/asm/arch-omap4/clock.h
index d7b61c2..d14d8fb 100644
--- a/arch/arm/include/asm/arch-omap4/clock.h
+++ b/arch/arm/include/asm/arch-omap4/clock.h
@@ -76,7 +76,7 @@
#define CM_CLKSEL_DCC_EN_MASK (1 << 22)

/* CM_SYS_CLKSEL */
-#define CM_SYS_CLKSEL_SYS_CLKSEL_MASK 7
+#define CM_SYS_CLKSEL_SYS_CLKSEL_MASK 7

/* CM_CLKSEL_CORE */
#define CLKSEL_CORE_SHIFT 0
diff --git a/arch/arm/include/asm/arch-omap5/clock.h b/arch/arm/include/asm/arch-omap5/clock.h
index 86d4711..1affa4f 100644
--- a/arch/arm/include/asm/arch-omap5/clock.h
+++ b/arch/arm/include/asm/arch-omap5/clock.h
@@ -81,7 +81,7 @@
#define CM_CLKSEL_DCC_EN_MASK (1 << 22)

/* CM_SYS_CLKSEL */
-#define CM_SYS_CLKSEL_SYS_CLKSEL_MASK 7
+#define CM_SYS_CLKSEL_SYS_CLKSEL_MASK 7

/* CM_CLKSEL_CORE */
#define CLKSEL_CORE_SHIFT 0
@@ -98,6 +98,12 @@
#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK 0
#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK 1

+/* CM_CLKSEL_ABE_PLL_SYS */
+#define CM_CLKSEL_ABE_PLL_SYS_CLKSEL_SHIFT 0
+#define CM_CLKSEL_ABE_PLL_SYS_CLKSEL_MASK 1
+#define CM_ABE_PLL_SYS_CLKSEL_SYSCLK1 0
+#define CM_ABE_PLL_SYS_CLKSEL_SYSCLK2 1
+
/* CM_BYPCLK_DPLL_IVA */
#define CM_BYPCLK_DPLL_IVA_CLKSEL_SHIFT 0
#define CM_BYPCLK_DPLL_IVA_CLKSEL_MASK 3
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 7007177..86ddd65 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -29,7 +29,7 @@

#include <common.h>

-#define NUM_SYS_CLKS 8
+#define NUM_SYS_CLKS 7

struct prcm_regs {
/* cm1.ckgen */
@@ -301,6 +301,7 @@ struct prcm_regs {
/* l4 wkup regs */
u32 cm_abe_pll_ref_clksel;
u32 cm_sys_clksel;
+ u32 cm_abe_pll_sys_clksel;
u32 cm_wkup_clkstctrl;
u32 cm_wkup_l4wkup_clkctrl;
u32 cm_wkup_wdtimer1_clkctrl;
diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h
index 35dec08..0eea28c 100644
--- a/include/configs/dra7xx_evm.h
+++ b/include/configs/dra7xx_evm.h
@@ -39,4 +39,6 @@
#define CONFIG_CONS_INDEX 1
#define CONFIG_SYS_NS16550_COM1 UART1_BASE
#define CONFIG_BAUDRATE 115200
+
+#define CONFIG_SYS_OMAP_ABE_SYSCK
#endif /* __CONFIG_DRA7XX_EVM_H */
--
1.7.9.5