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authorMarek Vasut <marex@denx.de>2015-07-25 08:44:27 +0200
committerMarek Vasut <marex@denx.de>2015-08-08 14:14:06 +0200
commit93b4abd3a25ba9061f2146ebabd4aae07d74a499 (patch)
tree6260fe29cac5941315c02c992b7925b849199f78 /arch/arm/mach-socfpga
parent163ee7d9d2a71d0d289246c3bf50db7cc9db4a50 (diff)
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arm: socfpga: clock: Clean up pll_config.h
Extract the clock configuration horribleness caused by pll_config.h in the following manner. First of all, introduce a few new accessors which return values of various clocks used in clock_manager.c and use them in clock_manager.c . These accessors replace those few macros which came from pll_config.h originally. Also introduce an accessor which returns the struct cm_config default configuration for the clock manager used in SPL. The accessors are implemented in a board-specific wrap_pll_config.c file, whose sole purpose is to include the qts-generated pll_config.h and provide only the necessary values to the clock manager. The purpose of this design is to limit the scope of inclusion for the pll_config.h , which thus far was included build-wide and poluted the namespace. With this change, the inclusion is limited to just the new wrap_pll_config.c file, which in turn provides three simple functions for the clock_manager.c to use. Signed-off-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch/arm/mach-socfpga')
-rw-r--r--arch/arm/mach-socfpga/clock_manager.c28
-rw-r--r--arch/arm/mach-socfpga/include/mach/clock_manager.h8
-rw-r--r--arch/arm/mach-socfpga/spl.c114
3 files changed, 24 insertions, 126 deletions
diff --git a/arch/arm/mach-socfpga/clock_manager.c b/arch/arm/mach-socfpga/clock_manager.c
index 74aa1d9..1341df4 100644
--- a/arch/arm/mach-socfpga/clock_manager.c
+++ b/arch/arm/mach-socfpga/clock_manager.c
@@ -88,7 +88,7 @@ static void cm_write_with_phase(uint32_t value,
* Ungate clocks
*/
-void cm_basic_init(const struct cm_config *cfg)
+void cm_basic_init(const struct cm_config * const cfg)
{
uint32_t start, timeout;
@@ -336,7 +336,7 @@ static unsigned int cm_get_main_vco_clk_hz(void)
/* get the main VCO clock */
reg = readl(&clock_manager_base->main_pll.vco);
- clock = CONFIG_HPS_CLK_OSC1_HZ;
+ clock = cm_get_osc_clk_hz(1);
clock /= ((reg & CLKMGR_MAINPLLGRP_VCO_DENOM_MASK) >>
CLKMGR_MAINPLLGRP_VCO_DENOM_OFFSET) + 1;
clock *= ((reg & CLKMGR_MAINPLLGRP_VCO_NUMER_MASK) >>
@@ -354,11 +354,11 @@ static unsigned int cm_get_per_vco_clk_hz(void)
reg = (reg & CLKMGR_PERPLLGRP_VCO_SSRC_MASK) >>
CLKMGR_PERPLLGRP_VCO_SSRC_OFFSET;
if (reg == CLKMGR_VCO_SSRC_EOSC1)
- clock = CONFIG_HPS_CLK_OSC1_HZ;
+ clock = cm_get_osc_clk_hz(1);
else if (reg == CLKMGR_VCO_SSRC_EOSC2)
- clock = CONFIG_HPS_CLK_OSC2_HZ;
+ clock = cm_get_osc_clk_hz(2);
else if (reg == CLKMGR_VCO_SSRC_F2S)
- clock = CONFIG_HPS_CLK_F2S_PER_REF_HZ;
+ clock = cm_get_f2s_per_ref_clk_hz();
/* get the PER VCO clock */
reg = readl(&clock_manager_base->per_pll.vco);
@@ -393,11 +393,11 @@ unsigned long cm_get_sdram_clk_hz(void)
reg = (reg & CLKMGR_SDRPLLGRP_VCO_SSRC_MASK) >>
CLKMGR_SDRPLLGRP_VCO_SSRC_OFFSET;
if (reg == CLKMGR_VCO_SSRC_EOSC1)
- clock = CONFIG_HPS_CLK_OSC1_HZ;
+ clock = cm_get_osc_clk_hz(1);
else if (reg == CLKMGR_VCO_SSRC_EOSC2)
- clock = CONFIG_HPS_CLK_OSC2_HZ;
+ clock = cm_get_osc_clk_hz(2);
else if (reg == CLKMGR_VCO_SSRC_F2S)
- clock = CONFIG_HPS_CLK_F2S_SDR_REF_HZ;
+ clock = cm_get_f2s_sdr_ref_clk_hz();
/* get the SDRAM VCO clock */
reg = readl(&clock_manager_base->sdr_pll.vco);
@@ -459,7 +459,7 @@ unsigned int cm_get_mmc_controller_clk_hz(void)
CLKMGR_PERPLLGRP_SRC_SDMMC_OFFSET;
if (reg == CLKMGR_SDMMC_CLK_SRC_F2S) {
- clock = CONFIG_HPS_CLK_F2S_PER_REF_HZ;
+ clock = cm_get_f2s_per_ref_clk_hz();
} else if (reg == CLKMGR_SDMMC_CLK_SRC_MAIN) {
clock = cm_get_main_vco_clk_hz();
@@ -489,7 +489,7 @@ unsigned int cm_get_qspi_controller_clk_hz(void)
CLKMGR_PERPLLGRP_SRC_QSPI_OFFSET;
if (reg == CLKMGR_QSPI_CLK_SRC_F2S) {
- clock = CONFIG_HPS_CLK_F2S_PER_REF_HZ;
+ clock = cm_get_f2s_per_ref_clk_hz();
} else if (reg == CLKMGR_QSPI_CLK_SRC_MAIN) {
clock = cm_get_main_vco_clk_hz();
@@ -524,10 +524,10 @@ static void cm_print_clock_quick_summary(void)
{
printf("MPU %10ld kHz\n", cm_get_mpu_clk_hz() / 1000);
printf("DDR %10ld kHz\n", cm_get_sdram_clk_hz() / 1000);
- printf("EOSC1 %8d kHz\n", CONFIG_HPS_CLK_OSC1_HZ / 1000);
- printf("EOSC2 %8d kHz\n", CONFIG_HPS_CLK_OSC2_HZ / 1000);
- printf("F2S_SDR_REF %8d kHz\n", CONFIG_HPS_CLK_F2S_SDR_REF_HZ / 1000);
- printf("F2S_PER_REF %8d kHz\n", CONFIG_HPS_CLK_F2S_PER_REF_HZ / 1000);
+ printf("EOSC1 %8d kHz\n", cm_get_osc_clk_hz(1) / 1000);
+ printf("EOSC2 %8d kHz\n", cm_get_osc_clk_hz(2) / 1000);
+ printf("F2S_SDR_REF %8d kHz\n", cm_get_f2s_sdr_ref_clk_hz() / 1000);
+ printf("F2S_PER_REF %8d kHz\n", cm_get_f2s_per_ref_clk_hz() / 1000);
printf("MMC %8d kHz\n", cm_get_mmc_controller_clk_hz() / 1000);
printf("QSPI %8d kHz\n", cm_get_qspi_controller_clk_hz() / 1000);
printf("UART %8d kHz\n", cm_get_l4_sp_clk_hz() / 1000);
diff --git a/arch/arm/mach-socfpga/include/mach/clock_manager.h b/arch/arm/mach-socfpga/include/mach/clock_manager.h
index 8a3362f..2675951 100644
--- a/arch/arm/mach-socfpga/include/mach/clock_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/clock_manager.h
@@ -15,6 +15,12 @@ unsigned int cm_get_l4_sp_clk_hz(void);
unsigned int cm_get_mmc_controller_clk_hz(void);
unsigned int cm_get_qspi_controller_clk_hz(void);
unsigned int cm_get_spi_controller_clk_hz(void);
+const unsigned int cm_get_osc_clk_hz(const int osc);
+const unsigned int cm_get_f2s_per_ref_clk_hz(void);
+const unsigned int cm_get_f2s_sdr_ref_clk_hz(void);
+
+/* Clock configuration accessors */
+const struct cm_config * const cm_get_default_config(void);
#endif
struct cm_config {
@@ -51,7 +57,7 @@ struct cm_config {
uint32_t s2fuser2clk;
};
-extern void cm_basic_init(const struct cm_config *cfg);
+void cm_basic_init(const struct cm_config * const cfg);
struct socfpga_clock_manager_main_pll {
u32 vco;
diff --git a/arch/arm/mach-socfpga/spl.c b/arch/arm/mach-socfpga/spl.c
index 6850fbf..1fecfdc 100644
--- a/arch/arm/mach-socfpga/spl.c
+++ b/arch/arm/mach-socfpga/spl.c
@@ -23,31 +23,6 @@ DECLARE_GLOBAL_DATA_PTR;
static struct pl310_regs *const pl310 =
(struct pl310_regs *)CONFIG_SYS_PL310_BASE;
-#define MAIN_VCO_BASE ( \
- (CONFIG_HPS_MAINPLLGRP_VCO_DENOM << \
- CLKMGR_MAINPLLGRP_VCO_DENOM_OFFSET) | \
- (CONFIG_HPS_MAINPLLGRP_VCO_NUMER << \
- CLKMGR_MAINPLLGRP_VCO_NUMER_OFFSET) \
- )
-
-#define PERI_VCO_BASE ( \
- (CONFIG_HPS_PERPLLGRP_VCO_PSRC << \
- CLKMGR_PERPLLGRP_VCO_PSRC_OFFSET) | \
- (CONFIG_HPS_PERPLLGRP_VCO_DENOM << \
- CLKMGR_PERPLLGRP_VCO_DENOM_OFFSET) | \
- (CONFIG_HPS_PERPLLGRP_VCO_NUMER << \
- CLKMGR_PERPLLGRP_VCO_NUMER_OFFSET) \
- )
-
-#define SDR_VCO_BASE ( \
- (CONFIG_HPS_SDRPLLGRP_VCO_SSRC << \
- CLKMGR_SDRPLLGRP_VCO_SSRC_OFFSET) | \
- (CONFIG_HPS_SDRPLLGRP_VCO_DENOM << \
- CLKMGR_SDRPLLGRP_VCO_DENOM_OFFSET) | \
- (CONFIG_HPS_SDRPLLGRP_VCO_NUMER << \
- CLKMGR_SDRPLLGRP_VCO_NUMER_OFFSET) \
- )
-
void board_init_f(ulong dummy)
{
struct socfpga_system_manager *sysmgr_regs =
@@ -85,91 +60,8 @@ void spl_board_init(void)
{
unsigned long sdram_size;
#ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET
- struct cm_config cm_default_cfg = {
- /* main group */
- MAIN_VCO_BASE,
- (CONFIG_HPS_MAINPLLGRP_MPUCLK_CNT <<
- CLKMGR_MAINPLLGRP_MPUCLK_CNT_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_MAINCLK_CNT <<
- CLKMGR_MAINPLLGRP_MAINCLK_CNT_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_DBGATCLK_CNT <<
- CLKMGR_MAINPLLGRP_DBGATCLK_CNT_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_MAINQSPICLK_CNT <<
- CLKMGR_MAINPLLGRP_MAINQSPICLK_CNT_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_MAINNANDSDMMCCLK_CNT <<
- CLKMGR_PERPLLGRP_PERNANDSDMMCCLK_CNT_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_CFGS2FUSER0CLK_CNT <<
- CLKMGR_MAINPLLGRP_CFGS2FUSER0CLK_CNT_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_MAINDIV_L3MPCLK <<
- CLKMGR_MAINPLLGRP_MAINDIV_L3MPCLK_OFFSET) |
- (CONFIG_HPS_MAINPLLGRP_MAINDIV_L3SPCLK <<
- CLKMGR_MAINPLLGRP_MAINDIV_L3SPCLK_OFFSET) |
- (CONFIG_HPS_MAINPLLGRP_MAINDIV_L4MPCLK <<
- CLKMGR_MAINPLLGRP_MAINDIV_L4MPCLK_OFFSET) |
- (CONFIG_HPS_MAINPLLGRP_MAINDIV_L4SPCLK <<
- CLKMGR_MAINPLLGRP_MAINDIV_L4SPCLK_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_DBGDIV_DBGATCLK <<
- CLKMGR_MAINPLLGRP_DBGDIV_DBGATCLK_OFFSET) |
- (CONFIG_HPS_MAINPLLGRP_DBGDIV_DBGCLK <<
- CLKMGR_MAINPLLGRP_DBGDIV_DBGCLK_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_TRACEDIV_TRACECLK <<
- CLKMGR_MAINPLLGRP_TRACEDIV_TRACECLK_OFFSET),
- (CONFIG_HPS_MAINPLLGRP_L4SRC_L4MP <<
- CLKMGR_MAINPLLGRP_L4SRC_L4MP_OFFSET) |
- (CONFIG_HPS_MAINPLLGRP_L4SRC_L4SP <<
- CLKMGR_MAINPLLGRP_L4SRC_L4SP_OFFSET),
-
- /* peripheral group */
- PERI_VCO_BASE,
- (CONFIG_HPS_PERPLLGRP_EMAC0CLK_CNT <<
- CLKMGR_PERPLLGRP_EMAC0CLK_CNT_OFFSET),
- (CONFIG_HPS_PERPLLGRP_EMAC1CLK_CNT <<
- CLKMGR_PERPLLGRP_EMAC1CLK_CNT_OFFSET),
- (CONFIG_HPS_PERPLLGRP_PERQSPICLK_CNT <<
- CLKMGR_PERPLLGRP_PERQSPICLK_CNT_OFFSET),
- (CONFIG_HPS_PERPLLGRP_PERNANDSDMMCCLK_CNT <<
- CLKMGR_PERPLLGRP_PERNANDSDMMCCLK_CNT_OFFSET),
- (CONFIG_HPS_PERPLLGRP_PERBASECLK_CNT <<
- CLKMGR_PERPLLGRP_PERBASECLK_CNT_OFFSET),
- (CONFIG_HPS_PERPLLGRP_S2FUSER1CLK_CNT <<
- CLKMGR_PERPLLGRP_S2FUSER1CLK_CNT_OFFSET),
- (CONFIG_HPS_PERPLLGRP_DIV_USBCLK <<
- CLKMGR_PERPLLGRP_DIV_USBCLK_OFFSET) |
- (CONFIG_HPS_PERPLLGRP_DIV_SPIMCLK <<
- CLKMGR_PERPLLGRP_DIV_SPIMCLK_OFFSET) |
- (CONFIG_HPS_PERPLLGRP_DIV_CAN0CLK <<
- CLKMGR_PERPLLGRP_DIV_CAN0CLK_OFFSET) |
- (CONFIG_HPS_PERPLLGRP_DIV_CAN1CLK <<
- CLKMGR_PERPLLGRP_DIV_CAN1CLK_OFFSET),
- (CONFIG_HPS_PERPLLGRP_GPIODIV_GPIODBCLK <<
- CLKMGR_PERPLLGRP_GPIODIV_GPIODBCLK_OFFSET),
- (CONFIG_HPS_PERPLLGRP_SRC_QSPI <<
- CLKMGR_PERPLLGRP_SRC_QSPI_OFFSET) |
- (CONFIG_HPS_PERPLLGRP_SRC_NAND <<
- CLKMGR_PERPLLGRP_SRC_NAND_OFFSET) |
- (CONFIG_HPS_PERPLLGRP_SRC_SDMMC <<
- CLKMGR_PERPLLGRP_SRC_SDMMC_OFFSET),
-
- /* sdram pll group */
- SDR_VCO_BASE,
- (CONFIG_HPS_SDRPLLGRP_DDRDQSCLK_PHASE <<
- CLKMGR_SDRPLLGRP_DDRDQSCLK_PHASE_OFFSET) |
- (CONFIG_HPS_SDRPLLGRP_DDRDQSCLK_CNT <<
- CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_OFFSET),
- (CONFIG_HPS_SDRPLLGRP_DDR2XDQSCLK_PHASE <<
- CLKMGR_SDRPLLGRP_DDR2XDQSCLK_PHASE_OFFSET) |
- (CONFIG_HPS_SDRPLLGRP_DDR2XDQSCLK_CNT <<
- CLKMGR_SDRPLLGRP_DDR2XDQSCLK_CNT_OFFSET),
- (CONFIG_HPS_SDRPLLGRP_DDRDQCLK_PHASE <<
- CLKMGR_SDRPLLGRP_DDRDQCLK_PHASE_OFFSET) |
- (CONFIG_HPS_SDRPLLGRP_DDRDQCLK_CNT <<
- CLKMGR_SDRPLLGRP_DDRDQCLK_CNT_OFFSET),
- (CONFIG_HPS_SDRPLLGRP_S2FUSER2CLK_PHASE <<
- CLKMGR_SDRPLLGRP_S2FUSER2CLK_PHASE_OFFSET) |
- (CONFIG_HPS_SDRPLLGRP_S2FUSER2CLK_CNT <<
- CLKMGR_SDRPLLGRP_S2FUSER2CLK_CNT_OFFSET),
-
- };
+ const struct cm_config *cm_default_cfg = cm_get_default_config();
+#endif
debug("Freezing all I/O banks\n");
/* freeze all IO banks */
@@ -183,7 +75,7 @@ void spl_board_init(void)
debug("Reconfigure Clock Manager\n");
/* reconfigure the PLLs */
- cm_basic_init(&cm_default_cfg);
+ cm_basic_init(cm_default_cfg);
/* Enable bootrom to configure IOs. */
sysmgr_enable_warmrstcfgio();