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authorJon Loeliger <jdl@freescale.com>2006-06-07 08:49:38 -0500
committerJon Loeliger <jdl@freescale.com>2006-06-07 08:49:38 -0500
commit72ed528a948b151e7be5ce03ed3d2b88a229dd0a (patch)
tree0f90590c0faf6fcc85f26f92facc653112be53e0 /cpu/ppc4xx
parent9f37dc8cabc94aed27aec8b4c69a390c8603fd28 (diff)
parente461a24113c66747510b07930a83b0d84171a559 (diff)
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Merge branch 'master' of http://www.denx.de/git/u-boot
Diffstat (limited to 'cpu/ppc4xx')
-rw-r--r--cpu/ppc4xx/cpu.c10
-rw-r--r--cpu/ppc4xx/cpu_init.c120
-rw-r--r--cpu/ppc4xx/start.S9
3 files changed, 136 insertions, 3 deletions
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index 0cd72b0..d9b5d32 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -1,5 +1,5 @@
/*
- * (C) Copyright 2000-2003
+ * (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
@@ -223,12 +223,20 @@ int checkcpu (void)
case PVR_440EP_RB: /* 440EP rev B and 440GR rev A have same PVR */
puts("EP Rev. B");
break;
+
+ case PVR_440EP_RC: /* 440EP rev C and 440GR rev B have same PVR */
+ puts("EP Rev. C");
+ break;
#endif /* CONFIG_440EP */
#ifdef CONFIG_440GR
case PVR_440GR_RA: /* 440EP rev B and 440GR rev A have same PVR */
puts("GR Rev. A");
break;
+
+ case PVR_440GR_RB: /* 440EP rev C and 440GR rev B have same PVR */
+ puts("GR Rev. B");
+ break;
#endif /* CONFIG_440GR */
#endif /* CONFIG_440 */
diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c
index 1a139d7..b27567f 100644
--- a/cpu/ppc4xx/cpu_init.c
+++ b/cpu/ppc4xx/cpu_init.c
@@ -1,5 +1,5 @@
/*
- * (C) Copyright 2000
+ * (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
@@ -101,6 +101,117 @@ DECLARE_GLOBAL_DATA_PTR;
# endif
#endif /* CFG_INIT_DCACHE_CS */
+#if defined(CFG_440_GPIO_TABLE)
+gpio_param_s gpio_tab[GPIO_GROUP_MAX][GPIO_MAX] = CFG_440_GPIO_TABLE;
+
+void set_chip_gpio_configuration(gpio_param_s (*gpio_tab)[GPIO_GROUP_MAX][GPIO_MAX])
+{
+ unsigned char i=0, j=0, reg_offset = 0, gpio_core;
+ unsigned long gpio_reg, gpio_core_add;
+
+ for (gpio_core=0; gpio_core<GPIO_GROUP_MAX; gpio_core++) {
+ j = 0;
+ reg_offset = 0;
+ /* GPIO config of the GPIOs 0 to 31 */
+ for (i=0; i<GPIO_MAX; i++, j++) {
+ if (i == GPIO_MAX/2) {
+ reg_offset = 4;
+ j = i-16;
+ }
+
+ gpio_core_add = (*gpio_tab)[gpio_core][i].add;
+
+ if (((*gpio_tab)[gpio_core][i].in_out == GPIO_IN) ||
+ ((*gpio_tab)[gpio_core][i].in_out == GPIO_BI)) {
+
+ switch ((*gpio_tab)[gpio_core][i].alt_nb) {
+ case GPIO_SEL:
+ break;
+
+ case GPIO_ALT1:
+ gpio_reg = in32(GPIO_IS1(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2));
+ out32(GPIO_IS1(gpio_core_add+reg_offset), gpio_reg);
+ break;
+
+ case GPIO_ALT2:
+ gpio_reg = in32(GPIO_IS2(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2));
+ out32(GPIO_IS2(gpio_core_add+reg_offset), gpio_reg);
+ break;
+
+ case GPIO_ALT3:
+ gpio_reg = in32(GPIO_IS3(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2));
+ out32(GPIO_IS3(gpio_core_add+reg_offset), gpio_reg);
+ break;
+ }
+ }
+
+ if (((*gpio_tab)[gpio_core][i].in_out == GPIO_OUT) ||
+ ((*gpio_tab)[gpio_core][i].in_out == GPIO_BI)) {
+
+ switch ((*gpio_tab)[gpio_core][i].alt_nb) {
+ case GPIO_SEL:
+ if (gpio_core == GPIO0) {
+ gpio_reg = in32(GPIO0_TCR) | (0x80000000 >> (j));
+ out32(GPIO0_TCR, gpio_reg);
+ }
+
+ if (gpio_core == GPIO1) {
+ gpio_reg = in32(GPIO1_TCR) | (0x80000000 >> (j));
+ out32(GPIO1_TCR, gpio_reg);
+ }
+
+ gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg);
+ gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg);
+ break;
+
+ case GPIO_ALT1:
+ gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_ALT1_SEL >> (j*2));
+ out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg);
+ gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_ALT1_SEL >> (j*2));
+ out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg);
+ break;
+
+ case GPIO_ALT2:
+ gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_ALT2_SEL >> (j*2));
+ out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg);
+ gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_ALT2_SEL >> (j*2));
+ out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg);
+ break;
+
+ case GPIO_ALT3:
+ gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_ALT3_SEL >> (j*2));
+ out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg);
+ gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset))
+ & ~(GPIO_MASK >> (j*2));
+ gpio_reg = gpio_reg | (GPIO_ALT3_SEL >> (j*2));
+ out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg);
+ break;
+ }
+ }
+ }
+ }
+}
+#endif /* CFG_440_GPIO_TABLE */
/*
* Breath some life into the CPU...
@@ -129,10 +240,16 @@ cpu_init_f (void)
mtdcr(cpc0_epctl, CPC0_EPRCSR_E0NFE | CPC0_EPRCSR_E1NFE);
#endif /* CONFIG_405EP */
+#if defined(CFG_440_GPIO_TABLE)
+ set_chip_gpio_configuration(&gpio_tab);
+#endif /* CFG_440_GPIO_TABLE */
+
/*
* External Bus Controller (EBC) Setup
*/
#if (defined(CFG_EBC_PB0AP) && defined(CFG_EBC_PB0CR))
+#if (defined(CONFIG_405GP) || defined(CONFIG_405CR) || \
+ defined(CONFIG_405EP) || defined(CONFIG_405))
/*
* Move the next instructions into icache, since these modify the flash
* we are running from!
@@ -148,6 +265,7 @@ cpu_init_f (void)
asm volatile(" ori 3, 3, 0xA000" ::: "r3");
asm volatile(" mtctr 3" ::: "ctr");
asm volatile("2: bdnz 2b" ::: "ctr", "cr0");
+#endif
mtebc(pb0ap, CFG_EBC_PB0AP);
mtebc(pb0cr, CFG_EBC_PB0CR);
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 948de43..647088f 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -1198,12 +1198,19 @@ ppcSync:
.globl relocate_code
relocate_code:
#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
- dccci 0,0 /* Invalidate data cache, now no longer our stack */
+ /*
+ * On some 440er platforms the cache is enabled in the first TLB (Boot-CS)
+ * to speed up the boot process. Now this cache needs to be disabled.
+ */
+ iccci 0,0 /* Invalidate inst cache */
+ dccci 0,0 /* Invalidate data cache, now no longer our stack */
sync
+ isync
addi r1,r0,0x0000 /* TLB entry #0 */
tlbre r0,r1,0x0002 /* Read contents */
ori r0,r0,0x0c00 /* Or in the inhibit, write through bit */
tlbwe r0,r1,0x0002 /* Save it out */
+ sync
isync
#endif
mr r1, r3 /* Set new stack pointer */