svn commit: r250293 - in head/sys/arm: arm mv mv/armadaxp
Grzegorz Bernacki
gber at FreeBSD.org
Mon May 6 14:12:38 UTC 2013
Author: gber
Date: Mon May 6 14:12:36 2013
New Revision: 250293
URL: http://svnweb.freebsd.org/changeset/base/250293
Log:
Properly initialize Armada XP MP subsystem.
- correct setting of Auxiliary Control Register for MP mode
- correct setting of Auxiliarty Debug registers
- cleanup management of memory contains bootup code
- early initialization of Coherency Fabric (MP and not-MP mode)
- enable Snoop Filtering
Obtained from: Semihalf
Modified:
head/sys/arm/arm/cpufunc_asm_pj4b.S
head/sys/arm/arm/locore.S
head/sys/arm/arm/mp_machdep.c
head/sys/arm/mv/armadaxp/armadaxp.c
head/sys/arm/mv/armadaxp/armadaxp_mp.c
head/sys/arm/mv/mv_machdep.c
Modified: head/sys/arm/arm/cpufunc_asm_pj4b.S
==============================================================================
--- head/sys/arm/arm/cpufunc_asm_pj4b.S Mon May 6 13:52:49 2013 (r250292)
+++ head/sys/arm/arm/cpufunc_asm_pj4b.S Mon May 6 14:12:36 2013 (r250293)
@@ -37,6 +37,10 @@ __FBSDID("$FreeBSD$");
.Lpj4b_cache_line_size:
.word _C_LABEL(arm_pdcache_line_size)
+.Lpj4b_sf_ctrl_reg:
+ .word 0xf1021820
+
+
ENTRY(pj4b_setttb)
/* Cache synchronization is not required as this core has PIPT caches */
mcr p15, 0, r1, c7, c10, 4 /* drain the write buffer */
@@ -198,13 +202,42 @@ ENTRY(get_core_id)
END(get_core_id)
ENTRY(pj4b_config)
+
+ /* Set Auxiliary Debug Modes Control 0 register */
+ mrc p15, 1, r0, c15, c1, 0
+ /* ARMADAXP errata fix: ARM-CPU-6136 */
+ bic r0, r0, #(1 << 12) /* LDSTM first issue is single word */
+
+ orr r0, r0, #(1 << 22) /* DVM_WAKEUP disable */
+ mcr p15, 1, r0, c15, c1, 0
+
+ /* Set Auxiliary Debug Modes Control 1 register */
+ mrc p15, 1, r0, c15, c1, 1
+ /* ARMADAXP errata fix: ARM-CPU-6409 */
+ bic r0, r0, #(1 << 2) /* Disable static branch prediction */
+
+ orr r0, r0, #(1 << 5) /* STREX backoff disable */
+ orr r0, r0, #(1 << 8) /* Internal parity handling disable */
+ orr r0, r0, #(1 << 16) /* Disable data transfer for clean line */
+ mcr p15, 1, r0, c15, c1, 1
+
+ /* Set Auxiliary Function Modes Control 0 register */
+ mrc p15, 1, r0, c15, c2, 0
+#if defined(SMP)
+ orr r0, r0, #(1 << 1) /* SMP/nAMP enabled (coherency) */
+#endif
+ orr r0, r0, #(1 << 2) /* L1 parite enable */
+ orr r0, r0, #(1 << 8) /* Cache and TLB maintenance broadcast enable */
+ mcr p15, 1, r0, c15, c2, 0
+
/* Set Auxiliary Debug Modes Control 2 register */
mrc p15, 1, r0, c15, c1, 2
- bic r0, r0, #(1 << 23)
- orr r0, r0, #(1 << 25)
- orr r0, r0, #(1 << 27)
- orr r0, r0, #(1 << 29)
- orr r0, r0, #(1 << 30)
+ bic r0, r0, #(1 << 23) /* Enable fast LDR */
+ orr r0, r0, #(1 << 25) /* Intervention Interleave disable */
+ orr r0, r0, #(1 << 27) /* Critical word first sequencing disable */
+ orr r0, r0, #(1 << 29) /* Disable MO device read / write */
+ orr r0, r0, #(1 << 30) /* L1 cache strict round-robin replacement policy*/
+ orr r0, r0, #(1 << 31) /* Enable write evict */
mcr p15, 1, r0, c15, c1, 2
#if defined(SMP)
/* Set SMP mode in Auxiliary Control Register */
@@ -212,6 +245,18 @@ ENTRY(pj4b_config)
orr r0, r0, #(1 << 5)
mcr p15, 0, r0, c1, c0, 1
#endif
+
+ /* Load CPU number */
+ mrc p15, 0, r0, c0, c0, 5
+ and r0, r0, #0xf
+
+ /* SF Enable and invalidate */
+ ldr r1, .Lpj4b_sf_ctrl_reg
+ ldr r2, [r1, r0, lsl #8]
+ orr r2, r2, #(1 << 0)
+ bic r2, r2, #(1 << 8)
+ str r2, [r1, r0, lsl #8]
+
RET
END(pj4b_config)
Modified: head/sys/arm/arm/locore.S
==============================================================================
--- head/sys/arm/arm/locore.S Mon May 6 13:52:49 2013 (r250292)
+++ head/sys/arm/arm/locore.S Mon May 6 14:12:36 2013 (r250293)
@@ -265,7 +265,11 @@ mmu_init_table:
/* map VA 0xc0000000..0xc3ffffff to PA */
MMU_INIT(KERNBASE, PHYSADDR, 64, L1_TYPE_S|L1_SHARED|L1_S_C|L1_S_AP(AP_KRW))
MMU_INIT(0x48000000, 0x48000000, 1, L1_TYPE_S|L1_SHARED|L1_S_C|L1_S_AP(AP_KRW))
-#endif
+#if defined(CPU_MV_PJ4B)
+ /* map VA 0xf1000000..0xd0000000 to PA */
+ MMU_INIT(0xf1000000, 0xd0000000, 1, L1_TYPE_S|L1_SHARED|L1_S_B|L1_S_AP(AP_KRW))
+#endif /* CPU_MV_PJ4B */
+#endif /* SMP */
.word 0 /* end of table */
#endif
.Lstart:
Modified: head/sys/arm/arm/mp_machdep.c
==============================================================================
--- head/sys/arm/arm/mp_machdep.c Mon May 6 13:52:49 2013 (r250292)
+++ head/sys/arm/arm/mp_machdep.c Mon May 6 14:12:36 2013 (r250293)
@@ -127,6 +127,13 @@ cpu_mp_start(void)
KERNPHYSADDR + KERNVIRTADDR) >> L1_S_SHIFT] =
L1_TYPE_S|L1_SHARED|L1_S_C|L1_S_AP(AP_KRW)|L1_S_DOM(PMAP_DOMAIN_KERNEL)|addr;
}
+
+#if defined(CPU_MV_PJ4B)
+ /* Add ARMADAXP registers required for snoop filter initialization */
+ ((int *)(temp_pagetable_va))[0xf1000000 >> L1_S_SHIFT] =
+ L1_TYPE_S|L1_SHARED|L1_S_B|L1_S_AP(AP_KRW)|0xd0000000;
+#endif
+
temp_pagetable = (void*)(vtophys(temp_pagetable_va));
cpu_idcache_wbinv_all();
cpu_l2cache_wbinv_all();
Modified: head/sys/arm/mv/armadaxp/armadaxp.c
==============================================================================
--- head/sys/arm/mv/armadaxp/armadaxp.c Mon May 6 13:52:49 2013 (r250292)
+++ head/sys/arm/mv/armadaxp/armadaxp.c Mon May 6 14:12:36 2013 (r250293)
@@ -51,6 +51,9 @@ __FBSDID("$FreeBSD$");
(0x0F & (sar >> 24)))
static uint32_t count_l2clk(void);
+void armadaxp_l2_init(void);
+void armadaxp_init_coher_fabric(void);
+int platform_get_ncpus(void);
#define ARMADAXP_L2_BASE (MV_BASE + 0x8000)
#define ARMADAXP_L2_CTRL 0x100
@@ -77,7 +80,11 @@ static uint32_t count_l2clk(void);
#define ARMADAXP_L2_FLUSH_PHYS 0x7F0
#define ARMADAXP_L2_FLUSH_WAY 0x7FC
-#define COHER_FABRIC_CFU 0x228
+#define MV_COHERENCY_FABRIC_BASE (MV_MBUS_BRIDGE_BASE + 0x200)
+#define COHER_FABRIC_CTRL 0x00
+#define COHER_FABRIC_CONF 0x04
+#define COHER_FABRIC_CFU 0x28
+#define COHER_FABRIC_CIB_CTRL 0x80
/* XXX Make gpio driver optional and remove it */
struct resource_spec mv_gpio_res[] = {
@@ -188,8 +195,46 @@ get_l2clk(void)
return (l2clk_freq);
}
-void armadaxp_l2_init(void);
-void armadaxp_l2_idcache_inv_all(void);
+static uint32_t
+read_coher_fabric(uint32_t reg)
+{
+
+ return (bus_space_read_4(fdtbus_bs_tag, MV_COHERENCY_FABRIC_BASE, reg));
+}
+
+static void
+write_coher_fabric(uint32_t reg, uint32_t val)
+{
+
+ bus_space_write_4(fdtbus_bs_tag, MV_COHERENCY_FABRIC_BASE, reg, val);
+}
+
+int
+platform_get_ncpus(void)
+{
+#if !defined(SMP)
+ return (1);
+#else
+ return ((read_coher_fabric(COHER_FABRIC_CONF) & 0xf) + 1);
+#endif
+}
+
+void
+armadaxp_init_coher_fabric(void)
+{
+ uint32_t val, cpus, mask;
+
+ cpus = platform_get_ncpus();
+ mask = (1 << cpus) - 1;
+ val = read_coher_fabric(COHER_FABRIC_CTRL);
+ val |= (mask << 24);
+ write_coher_fabric(COHER_FABRIC_CTRL, val);
+
+ val = read_coher_fabric(COHER_FABRIC_CONF);
+ val |= (mask << 24);
+ val |= (1 << 15);
+ write_coher_fabric(COHER_FABRIC_CONF, val);
+}
#define ALL_WAYS 0xffffffff
@@ -208,7 +253,7 @@ write_l2_cache(uint32_t reg, uint32_t va
bus_space_write_4(fdtbus_bs_tag, ARMADAXP_L2_BASE, reg, val);
}
-void
+static void
armadaxp_l2_idcache_inv_all(void)
{
write_l2_cache(ARMADAXP_L2_INV_WAY, ALL_WAYS);
@@ -233,11 +278,6 @@ armadaxp_l2_init(void)
/* Clear pending L2 interrupts */
write_l2_cache(ARMADAXP_L2_INT_CAUSE, 0x1ff);
- /* Enable Cache and TLB maintenance broadcast */
- __asm__ __volatile__ ("mrc p15, 1, %0, c15, c2, 0" : "=r"(reg));
- reg |= (1 << 8);
- __asm__ __volatile__ ("mcr p15, 1, %0, c15, c2, 0" : :"r"(reg));
-
/* Enable l2 cache */
reg = read_l2_cache(ARMADAXP_L2_CTRL);
write_l2_cache(ARMADAXP_L2_CTRL, reg | L2_ENABLE);
@@ -254,10 +294,14 @@ armadaxp_l2_init(void)
* Enable Cache maintenance operation propagation in coherency fabric
* Change point of coherency and point of unification to DRAM.
*/
- reg = bus_space_read_4(fdtbus_bs_tag, MV_MBUS_BRIDGE_BASE,
- COHER_FABRIC_CFU);
+ reg = read_coher_fabric(COHER_FABRIC_CFU);
reg |= (1 << 17) | (1 << 18);
- bus_space_write_4(fdtbus_bs_tag, MV_MBUS_BRIDGE_BASE, COHER_FABRIC_CFU,
- reg);
+ write_coher_fabric(COHER_FABRIC_CFU, reg);
+
+ /* Coherent IO Bridge initialization */
+ reg = read_coher_fabric(COHER_FABRIC_CIB_CTRL);
+ reg &= ~(7 << 16);
+ reg |= (7 << 16);
+ write_coher_fabric(COHER_FABRIC_CIB_CTRL, reg);
}
Modified: head/sys/arm/mv/armadaxp/armadaxp_mp.c
==============================================================================
--- head/sys/arm/mv/armadaxp/armadaxp_mp.c Mon May 6 13:52:49 2013 (r250292)
+++ head/sys/arm/mv/armadaxp/armadaxp_mp.c Mon May 6 14:12:36 2013 (r250293)
@@ -33,21 +33,21 @@
#include <sys/mutex.h>
#include <sys/smp.h>
+#include <vm/vm.h>
+#include <vm/vm_kern.h>
+#include <vm/vm_extern.h>
+
#include <machine/smp.h>
#include <machine/fdt.h>
+#include <machine/armreg.h>
#include <arm/mv/mvwin.h>
-static int platform_get_ncpus(void);
-
#define MV_AXP_CPU_DIVCLK_BASE (MV_BASE + 0x18700)
#define CPU_DIVCLK_CTRL0 0x00
#define CPU_DIVCLK_CTRL2_RATIO_FULL0 0x08
#define CPU_DIVCLK_CTRL2_RATIO_FULL1 0x0c
-
-#define MV_COHERENCY_FABRIC_BASE (MV_MBUS_BRIDGE_BASE + 0x200)
-#define COHER_FABRIC_CTRL 0x00
-#define COHER_FABRIC_CONF 0x04
+#define CPU_DIVCLK_MASK(x) (~(0xff << (8 * (x))))
#define CPU_PMU(x) (MV_BASE + 0x22100 + (0x100 * (x)))
#define CPU_PMU_BOOT 0x24
@@ -57,20 +57,8 @@ static int platform_get_ncpus(void);
#define CPU_RESUME_CONTROL (0x20988)
-/* Coherency Fabric registers */
-static uint32_t
-read_coher_fabric(uint32_t reg)
-{
-
- return (bus_space_read_4(fdtbus_bs_tag, MV_COHERENCY_FABRIC_BASE, reg));
-}
-
-static void
-write_coher_fabric(uint32_t reg, uint32_t val)
-{
-
- bus_space_write_4(fdtbus_bs_tag, MV_COHERENCY_FABRIC_BASE, reg, val);
-}
+void armadaxp_init_coher_fabric(void);
+int platform_get_ncpus(void);
/* Coherency Fabric registers */
static uint32_t
@@ -111,56 +99,58 @@ platform_mp_init_secondary(void)
void mpentry(void);
void mptramp(void);
-static void
-initialize_coherency_fabric(void)
-{
- uint32_t val, cpus, mask;
-
- cpus = platform_get_ncpus();
- mask = (1 << cpus) - 1;
- val = read_coher_fabric(COHER_FABRIC_CTRL);
- val |= (mask << 24);
- write_coher_fabric(COHER_FABRIC_CTRL, val);
-
- val = read_coher_fabric(COHER_FABRIC_CONF);
- val |= (mask << 24);
- write_coher_fabric(COHER_FABRIC_CONF, val);
-}
void
platform_mp_start_ap(void)
{
- uint32_t reg, *ptr, cpu_num;
-
- /* Copy boot code to SRAM */
- *((unsigned int*)(0xf1020240)) = 0xffff0101;
- *((unsigned int*)(0xf1008500)) = 0xffff0003;
-
- pmap_kenter_nocache(0x880f0000, 0xffff0000);
- reg = 0x880f0000;
-
- for (ptr = (uint32_t *)mptramp; ptr < (uint32_t *)mpentry;
- ptr++, reg += 4)
- *((uint32_t *)reg) = *ptr;
-
- if (mp_ncpus > 1) {
- reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL0);
- reg &= 0x00ffffff;
- reg |= 0x01000000;
- write_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL0, reg);
+ uint32_t reg, *src, *dst, cpu_num, div_val, cputype;
+ vm_offset_t smp_boot;
+ /*
+ * Initialization procedure depends on core revision,
+ * in this step CHIP ID is checked to choose proper procedure
+ */
+ cputype = cpufunc_id();
+ cputype &= CPU_ID_CPU_MASK;
+
+ smp_boot = kmem_alloc_nofault(kernel_map, PAGE_SIZE);
+ pmap_kenter_nocache(smp_boot, 0xffff0000);
+ dst = (uint32_t *) smp_boot;
+
+ for (src = (uint32_t *)mptramp; src < (uint32_t *)mpentry;
+ src++, dst++) {
+ *dst = *src;
}
- if (mp_ncpus > 2) {
- reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
- reg &= 0xff00ffff;
- reg |= 0x00010000;
- write_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1, reg);
- }
- if (mp_ncpus > 3) {
- reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
- reg &= 0x00ffffff;
- reg |= 0x01000000;
- write_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1, reg);
+ kmem_free(kernel_map, smp_boot, PAGE_SIZE);
+
+ if (cputype == CPU_ID_MV88SV584X_V7) {
+ /* Core rev A0 */
+ div_val = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
+ div_val &= 0x3f;
+
+ for (cpu_num = 1; cpu_num < mp_ncpus; cpu_num++ ) {
+ reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
+ reg &= CPU_DIVCLK_MASK(cpu_num);
+ reg |= div_val << (cpu_num * 8);
+ write_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1, reg);
+ }
+ } else {
+ /* Core rev Z1 */
+ div_val = 0x01;
+
+ if (mp_ncpus > 1) {
+ reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL0);
+ reg &= CPU_DIVCLK_MASK(3);
+ reg |= div_val << 24;
+ write_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL0, reg);
+ }
+
+ for (cpu_num = 2; cpu_num < mp_ncpus; cpu_num++ ) {
+ reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
+ reg &= CPU_DIVCLK_MASK(cpu_num);
+ reg |= div_val << (cpu_num * 8);
+ write_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1, reg);
+ }
}
reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL0);
@@ -190,14 +180,7 @@ platform_mp_start_ap(void)
wmb();
DELAY(10);
- initialize_coherency_fabric();
-}
-
-static int
-platform_get_ncpus(void)
-{
-
- return ((read_coher_fabric(COHER_FABRIC_CONF) & 0xf) + 1);
+ armadaxp_init_coher_fabric();
}
void
Modified: head/sys/arm/mv/mv_machdep.c
==============================================================================
--- head/sys/arm/mv/mv_machdep.c Mon May 6 13:52:49 2013 (r250292)
+++ head/sys/arm/mv/mv_machdep.c Mon May 6 14:12:36 2013 (r250293)
@@ -62,6 +62,7 @@ __FBSDID("$FreeBSD$");
static int platform_mpp_init(void);
#if defined(SOC_MV_ARMADAXP)
+void armadaxp_init_coher_fabric(void);
void armadaxp_l2_init(void);
#endif
@@ -237,6 +238,10 @@ initarm_late_init(void)
write_cpu_ctrl(CPU_TIMERS_BASE + CPU_TIMER_CONTROL, 0);
#endif
#if defined(SOC_MV_ARMADAXP)
+#if !defined(SMP)
+ /* For SMP case it should be initialized after APs are booted */
+ armadaxp_init_coher_fabric();
+#endif
armadaxp_l2_init();
#endif
}
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