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Code Issues Releases Activity

pmc-ccplex: Have proper Power Domain toggling

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This commit is contained in:
CTCaer 2019-09-12 23:09:38 +03:00
parent a8d529cf6a
commit 3028568019
2 changed files with 24 additions and 16 deletions
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20
bootloader/soc/cluster.c
View file

@ -40,10 +40,13 @@ void _cluster_enable_power()
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_DVC_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V); i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_DVC_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V);
} }
int _cluster_pmc_enable_partition(u32 part, u32 toggle, bool enable) int _cluster_pmc_enable_partition(u32 part, int enable)
{ {
// Check if the partition has already been turned on. u32 part_mask = 1 << part;
if (enable && PMC(APBDEV_PMC_PWRGATE_STATUS) & part) u32 desired_state = enable << part;
// Check if the partition has the state we want.
if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
return 1; return 1;
u32 i = 5001; u32 i = 5001;
@ -55,12 +58,13 @@ int _cluster_pmc_enable_partition(u32 part, u32 toggle, bool enable)
return 0; return 0;
} }
PMC(APBDEV_PMC_PWRGATE_TOGGLE) = toggle | (enable ? 0x100 : 0); // Toggle power gating.
PMC(APBDEV_PMC_PWRGATE_TOGGLE) = part | 0x100;
i = 5001; i = 5001;
while (i > 0) while (i > 0)
{ {
if (PMC(APBDEV_PMC_PWRGATE_STATUS) & part) if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
break; break;
usleep(1); usleep(1);
i--; i--;
@ -103,11 +107,11 @@ void cluster_boot_cpu0(u32 entry)
CLOCK(CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2) &= 0xFFFFF000; CLOCK(CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2) &= 0xFFFFF000;
// Enable CPU rail. // Enable CPU rail.
_cluster_pmc_enable_partition(1, 0, true); _cluster_pmc_enable_partition(0, 1);
// Enable cluster 0 non-CPU. // Enable cluster 0 non-CPU.
_cluster_pmc_enable_partition(0x8000, 15, true); _cluster_pmc_enable_partition(15, 1);
// Enable CE0. // Enable CE0.
_cluster_pmc_enable_partition(0x4000, 14, true); _cluster_pmc_enable_partition(14, 1);
// Request and wait for RAM repair. // Request and wait for RAM repair.
FLOW_CTLR(FLOW_CTLR_RAM_REPAIR) = 1; FLOW_CTLR(FLOW_CTLR_RAM_REPAIR) = 1;

20
nyx/nyx_gui/soc/cluster.c
View file

@ -43,10 +43,13 @@ void _cluster_enable_power()
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_DVC_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V); i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_DVC_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V);
} }
int _cluster_pmc_enable_partition(u32 part, u32 toggle, bool enable) int _cluster_pmc_enable_partition(u32 part, int enable)
{ {
// Check if the partition has already been turned on. u32 part_mask = 1 << part;
if (enable && PMC(APBDEV_PMC_PWRGATE_STATUS) & part) u32 desired_state = enable << part;
// Check if the partition has the state we want.
if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
return 1; return 1;
u32 i = 5001; u32 i = 5001;
@ -58,12 +61,13 @@ int _cluster_pmc_enable_partition(u32 part, u32 toggle, bool enable)
return 0; return 0;
} }
PMC(APBDEV_PMC_PWRGATE_TOGGLE) = toggle | (enable ? 0x100 : 0); // Toggle power gating.
PMC(APBDEV_PMC_PWRGATE_TOGGLE) = part | 0x100;
i = 5001; i = 5001;
while (i > 0) while (i > 0)
{ {
if (PMC(APBDEV_PMC_PWRGATE_STATUS) & part) if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
break; break;
usleep(1); usleep(1);
i--; i--;
@ -106,11 +110,11 @@ void cluster_boot_cpu0(u32 entry)
CLOCK(CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2) &= 0xFFFFF000; CLOCK(CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2) &= 0xFFFFF000;
// Enable CPU rail. // Enable CPU rail.
_cluster_pmc_enable_partition(1, 0, true); _cluster_pmc_enable_partition(0, 1);
// Enable cluster 0 non-CPU. // Enable cluster 0 non-CPU.
_cluster_pmc_enable_partition(0x8000, 15, true); _cluster_pmc_enable_partition(15, 1);
// Enable CE0. // Enable CE0.
_cluster_pmc_enable_partition(0x4000, 14, true); _cluster_pmc_enable_partition(14, 1);
// Request and wait for RAM repair. // Request and wait for RAM repair.
FLOW_CTLR(FLOW_CTLR_RAM_REPAIR) = 1; FLOW_CTLR(FLOW_CTLR_RAM_REPAIR) = 1;