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-rw-r--r--arch/mips/txx9/generic/Makefile4
-rw-r--r--arch/mips/txx9/generic/irq_tx4927.c2
-rw-r--r--arch/mips/txx9/generic/irq_tx4938.c2
-rw-r--r--arch/mips/txx9/generic/mem_tx4927.c94
-rw-r--r--arch/mips/txx9/generic/mem_tx4938.c124
-rw-r--r--arch/mips/txx9/generic/setup.c38
-rw-r--r--arch/mips/txx9/generic/setup_tx4927.c194
-rw-r--r--arch/mips/txx9/generic/setup_tx4938.c259
8 files changed, 508 insertions, 209 deletions
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
index 668fdaad644..9c120771e65 100644
--- a/arch/mips/txx9/generic/Makefile
+++ b/arch/mips/txx9/generic/Makefile
@@ -4,8 +4,8 @@
obj-y += setup.o
obj-$(CONFIG_PCI) += pci.o
-obj-$(CONFIG_SOC_TX4927) += mem_tx4927.o irq_tx4927.o
-obj-$(CONFIG_SOC_TX4938) += mem_tx4938.o irq_tx4938.o
+obj-$(CONFIG_SOC_TX4927) += mem_tx4927.o setup_tx4927.o irq_tx4927.o
+obj-$(CONFIG_SOC_TX4938) += mem_tx4927.o setup_tx4938.o irq_tx4938.o
obj-$(CONFIG_TOSHIBA_FPCIB0) += smsc_fdc37m81x.o
obj-$(CONFIG_KGDB) += dbgio.o
diff --git a/arch/mips/txx9/generic/irq_tx4927.c b/arch/mips/txx9/generic/irq_tx4927.c
index 6377bd8a905..cbea1fdde82 100644
--- a/arch/mips/txx9/generic/irq_tx4927.c
+++ b/arch/mips/txx9/generic/irq_tx4927.c
@@ -31,7 +31,7 @@
void __init tx4927_irq_init(void)
{
mips_cpu_irq_init();
- txx9_irq_init(TX4927_IRC_REG);
+ txx9_irq_init(TX4927_IRC_REG & 0xfffffffffULL);
set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
handle_simple_irq);
}
diff --git a/arch/mips/txx9/generic/irq_tx4938.c b/arch/mips/txx9/generic/irq_tx4938.c
index 5fc86c9c9d2..6eac684bf19 100644
--- a/arch/mips/txx9/generic/irq_tx4938.c
+++ b/arch/mips/txx9/generic/irq_tx4938.c
@@ -19,7 +19,7 @@
void __init tx4938_irq_init(void)
{
mips_cpu_irq_init();
- txx9_irq_init(TX4938_IRC_REG);
+ txx9_irq_init(TX4938_IRC_REG & 0xfffffffffULL);
set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
handle_simple_irq);
}
diff --git a/arch/mips/txx9/generic/mem_tx4927.c b/arch/mips/txx9/generic/mem_tx4927.c
index 12dfc377bf2..ef6ea6e9787 100644
--- a/arch/mips/txx9/generic/mem_tx4927.c
+++ b/arch/mips/txx9/generic/mem_tx4927.c
@@ -1,5 +1,5 @@
/*
- * linux/arch/mips/tx4927/common/tx4927_prom.c
+ * linux/arch/mips/txx9/generic/mem_tx4927.c
*
* common tx4927 memory interface
*
@@ -32,8 +32,9 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/io.h>
+#include <asm/txx9/tx4927.h>
-static unsigned int __init tx4927_process_sdccr(unsigned long addr)
+static unsigned int __init tx4927_process_sdccr(u64 __iomem *addr)
{
u64 val;
unsigned int sdccr_ce;
@@ -45,97 +46,32 @@ static unsigned int __init tx4927_process_sdccr(unsigned long addr)
unsigned int rs = 0;
unsigned int cs = 0;
unsigned int mw = 0;
- unsigned int msize = 0;
- val = __raw_readq((void __iomem *)addr);
+ val = __raw_readq(addr);
/* MVMCP -- need #defs for these bits masks */
sdccr_ce = ((val & (1 << 10)) >> 10);
sdccr_bs = ((val & (1 << 8)) >> 8);
sdccr_rs = ((val & (3 << 5)) >> 5);
- sdccr_cs = ((val & (3 << 2)) >> 2);
+ sdccr_cs = ((val & (7 << 2)) >> 2);
sdccr_mw = ((val & (1 << 0)) >> 0);
if (sdccr_ce) {
- switch (sdccr_bs) {
- case 0:{
- bs = 2;
- break;
- }
- case 1:{
- bs = 4;
- break;
- }
- }
- switch (sdccr_rs) {
- case 0:{
- rs = 2048;
- break;
- }
- case 1:{
- rs = 4096;
- break;
- }
- case 2:{
- rs = 8192;
- break;
- }
- case 3:{
- rs = 0;
- break;
- }
- }
- switch (sdccr_cs) {
- case 0:{
- cs = 256;
- break;
- }
- case 1:{
- cs = 512;
- break;
- }
- case 2:{
- cs = 1024;
- break;
- }
- case 3:{
- cs = 2048;
- break;
- }
- }
- switch (sdccr_mw) {
- case 0:{
- mw = 8;
- break;
- } /* 8 bytes = 64 bits */
- case 1:{
- mw = 4;
- break;
- } /* 4 bytes = 32 bits */
- }
+ bs = 2 << sdccr_bs;
+ rs = 2048 << sdccr_rs;
+ cs = 256 << sdccr_cs;
+ mw = 8 >> sdccr_mw;
}
- /* bytes per chip MB per chip num chips */
- msize = (((rs * cs * mw) / (1024 * 1024)) * bs);
-
- return (msize);
+ return rs * cs * mw * bs;
}
-
unsigned int __init tx4927_get_mem_size(void)
{
- unsigned int c0;
- unsigned int c1;
- unsigned int c2;
- unsigned int c3;
- unsigned int total;
-
- /* MVMCP -- need #defs for these registers */
- c0 = tx4927_process_sdccr(0xff1f8000);
- c1 = tx4927_process_sdccr(0xff1f8008);
- c2 = tx4927_process_sdccr(0xff1f8010);
- c3 = tx4927_process_sdccr(0xff1f8018);
- total = c0 + c1 + c2 + c3;
+ unsigned int total = 0;
+ int i;
- return (total);
+ for (i = 0; i < ARRAY_SIZE(tx4927_sdramcptr->cr); i++)
+ total += tx4927_process_sdccr(&tx4927_sdramcptr->cr[i]);
+ return total;
}
diff --git a/arch/mips/txx9/generic/mem_tx4938.c b/arch/mips/txx9/generic/mem_tx4938.c
deleted file mode 100644
index 20baeaeba4c..00000000000
--- a/arch/mips/txx9/generic/mem_tx4938.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * linux/arch/mips/tx4938/common/prom.c
- *
- * common tx4938 memory interface
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/io.h>
-
-static unsigned int __init
-tx4938_process_sdccr(u64 * addr)
-{
- u64 val;
- unsigned int sdccr_ce;
- unsigned int sdccr_rs;
- unsigned int sdccr_cs;
- unsigned int sdccr_mw;
- unsigned int rs = 0;
- unsigned int cs = 0;
- unsigned int mw = 0;
- unsigned int bc = 4;
- unsigned int msize = 0;
-
- val = ____raw_readq((void __iomem *)addr);
-
- /* MVMCP -- need #defs for these bits masks */
- sdccr_ce = ((val & (1 << 10)) >> 10);
- sdccr_rs = ((val & (3 << 5)) >> 5);
- sdccr_cs = ((val & (7 << 2)) >> 2);
- sdccr_mw = ((val & (1 << 0)) >> 0);
-
- if (sdccr_ce) {
- switch (sdccr_rs) {
- case 0:{
- rs = 2048;
- break;
- }
- case 1:{
- rs = 4096;
- break;
- }
- case 2:{
- rs = 8192;
- break;
- }
- default:{
- rs = 0;
- break;
- }
- }
- switch (sdccr_cs) {
- case 0:{
- cs = 256;
- break;
- }
- case 1:{
- cs = 512;
- break;
- }
- case 2:{
- cs = 1024;
- break;
- }
- case 3:{
- cs = 2048;
- break;
- }
- case 4:{
- cs = 4096;
- break;
- }
- default:{
- cs = 0;
- break;
- }
- }
- switch (sdccr_mw) {
- case 0:{
- mw = 8;
- break;
- } /* 8 bytes = 64 bits */
- case 1:{
- mw = 4;
- break;
- } /* 4 bytes = 32 bits */
- }
- }
-
- /* bytes per chip MB per chip bank count */
- msize = (((rs * cs * mw) / (1024 * 1024)) * (bc));
-
- /* MVMCP -- bc hard coded to 4 from table 9.3.1 */
- /* boad supports bc=2 but no way to detect */
-
- return (msize);
-}
-
-unsigned int __init
-tx4938_get_mem_size(void)
-{
- unsigned int c0;
- unsigned int c1;
- unsigned int c2;
- unsigned int c3;
- unsigned int total;
-
- /* MVMCP -- need #defs for these registers */
- c0 = tx4938_process_sdccr((u64 *) 0xff1f8000);
- c1 = tx4938_process_sdccr((u64 *) 0xff1f8008);
- c2 = tx4938_process_sdccr((u64 *) 0xff1f8010);
- c3 = tx4938_process_sdccr((u64 *) 0xff1f8018);
- total = c0 + c1 + c2 + c3;
-
- return (total);
-}
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 5afc5d5cab0..8c60c78b9a9 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -19,7 +19,9 @@
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/gpio.h>
#include <asm/bootinfo.h>
+#include <asm/time.h>
#include <asm/txx9/generic.h>
#ifdef CONFIG_CPU_TX49XX
#include <asm/txx9/tx4938.h>
@@ -30,6 +32,7 @@ struct resource txx9_ce_res[8];
static char txx9_ce_res_name[8][4]; /* "CEn" */
/* pcode, internal register */
+unsigned int txx9_pcode;
char txx9_pcode_str[8];
static struct resource txx9_reg_res = {
.name = txx9_pcode_str,
@@ -59,15 +62,16 @@ unsigned int txx9_master_clock;
unsigned int txx9_cpu_clock;
unsigned int txx9_gbus_clock;
+int txx9_ccfg_toeon __initdata = 1;
/* Minimum CLK support */
struct clk *clk_get(struct device *dev, const char *id)
{
if (!strcmp(id, "spi-baseclk"))
- return (struct clk *)(txx9_gbus_clock / 2 / 4);
+ return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 4);
if (!strcmp(id, "imbus_clk"))
- return (struct clk *)(txx9_gbus_clock / 2);
+ return (struct clk *)((unsigned long)txx9_gbus_clock / 2);
return ERR_PTR(-ENOENT);
}
EXPORT_SYMBOL(clk_get);
@@ -94,6 +98,22 @@ void clk_put(struct clk *clk)
}
EXPORT_SYMBOL(clk_put);
+/* GPIO support */
+
+#ifdef CONFIG_GENERIC_GPIO
+int gpio_to_irq(unsigned gpio)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL(gpio_to_irq);
+
+int irq_to_gpio(unsigned irq)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL(irq_to_gpio);
+#endif
+
extern struct txx9_board_vec jmr3927_vec;
extern struct txx9_board_vec rbtx4927_vec;
extern struct txx9_board_vec rbtx4937_vec;
@@ -107,6 +127,12 @@ void __init prom_init_cmdline(void)
int argc = (int)fw_arg0;
char **argv = (char **)fw_arg1;
int i; /* Always ignore the "-c" at argv[0] */
+#ifdef CONFIG_64BIT
+ char *fixed_argv[32];
+ for (i = 0; i < argc; i++)
+ fixed_argv[i] = (char *)(long)(*((__s32 *)argv + i));
+ argv = fixed_argv;
+#endif
/* ignore all built-in args if any f/w args given */
if (argc > 1)
@@ -126,15 +152,19 @@ void __init prom_init(void)
#endif
#ifdef CONFIG_CPU_TX49XX
switch (TX4938_REV_PCODE()) {
+#ifdef CONFIG_TOSHIBA_RBTX4927
case 0x4927:
txx9_board_vec = &rbtx4927_vec;
break;
case 0x4937:
txx9_board_vec = &rbtx4937_vec;
break;
+#endif
+#ifdef CONFIG_TOSHIBA_RBTX4938
case 0x4938:
txx9_board_vec = &rbtx4938_vec;
break;
+#endif
}
#endif
@@ -160,6 +190,10 @@ char * __init prom_getcmdline(void)
/* wrappers */
void __init plat_mem_setup(void)
{
+ ioport_resource.start = 0;
+ ioport_resource.end = ~0UL; /* no limit */
+ iomem_resource.start = 0;
+ iomem_resource.end = ~0UL; /* no limit */
txx9_board_vec->mem_setup();
}
diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c
new file mode 100644
index 00000000000..89d6e28add9
--- /dev/null
+++ b/arch/mips/txx9/generic/setup_tx4927.c
@@ -0,0 +1,194 @@
+/*
+ * TX4927 setup routines
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/serial_core.h>
+#include <linux/param.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/tx4927.h>
+
+void __init tx4927_wdr_init(void)
+{
+ /* clear WatchDogReset (W1C) */
+ tx4927_ccfg_set(TX4927_CCFG_WDRST);
+ /* do reset on watchdog */
+ tx4927_ccfg_set(TX4927_CCFG_WR);
+}
+
+static struct resource tx4927_sdram_resource[4];
+
+void __init tx4927_setup(void)
+{
+ int i;
+ __u32 divmode;
+ int cpuclk = 0;
+ u64 ccfg;
+
+ txx9_reg_res_init(TX4927_REV_PCODE(), TX4927_REG_BASE,
+ TX4927_REG_SIZE);
+
+ /* SDRAMC,EBUSC are configured by PROM */
+ for (i = 0; i < 8; i++) {
+ if (!(TX4927_EBUSC_CR(i) & 0x8))
+ continue; /* disabled */
+ txx9_ce_res[i].start = (unsigned long)TX4927_EBUSC_BA(i);
+ txx9_ce_res[i].end =
+ txx9_ce_res[i].start + TX4927_EBUSC_SIZE(i) - 1;
+ request_resource(&iomem_resource, &txx9_ce_res[i]);
+ }
+
+ /* clocks */
+ ccfg = ____raw_readq(&tx4927_ccfgptr->ccfg);
+ if (txx9_master_clock) {
+ /* calculate gbus_clock and cpu_clock from master_clock */
+ divmode = (__u32)ccfg & TX4927_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_8:
+ case TX4927_CCFG_DIVMODE_10:
+ case TX4927_CCFG_DIVMODE_12:
+ case TX4927_CCFG_DIVMODE_16:
+ txx9_gbus_clock = txx9_master_clock * 4; break;
+ default:
+ txx9_gbus_clock = txx9_master_clock;
+ }
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_2:
+ case TX4927_CCFG_DIVMODE_8:
+ cpuclk = txx9_gbus_clock * 2; break;
+ case TX4927_CCFG_DIVMODE_2_5:
+ case TX4927_CCFG_DIVMODE_10:
+ cpuclk = txx9_gbus_clock * 5 / 2; break;
+ case TX4927_CCFG_DIVMODE_3:
+ case TX4927_CCFG_DIVMODE_12:
+ cpuclk = txx9_gbus_clock * 3; break;
+ case TX4927_CCFG_DIVMODE_4:
+ case TX4927_CCFG_DIVMODE_16:
+ cpuclk = txx9_gbus_clock * 4; break;
+ }
+ txx9_cpu_clock = cpuclk;
+ } else {
+ if (txx9_cpu_clock == 0)
+ txx9_cpu_clock = 200000000; /* 200MHz */
+ /* calculate gbus_clock and master_clock from cpu_clock */
+ cpuclk = txx9_cpu_clock;
+ divmode = (__u32)ccfg & TX4927_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_2:
+ case TX4927_CCFG_DIVMODE_8:
+ txx9_gbus_clock = cpuclk / 2; break;
+ case TX4927_CCFG_DIVMODE_2_5:
+ case TX4927_CCFG_DIVMODE_10:
+ txx9_gbus_clock = cpuclk * 2 / 5; break;
+ case TX4927_CCFG_DIVMODE_3:
+ case TX4927_CCFG_DIVMODE_12:
+ txx9_gbus_clock = cpuclk / 3; break;
+ case TX4927_CCFG_DIVMODE_4:
+ case TX4927_CCFG_DIVMODE_16:
+ txx9_gbus_clock = cpuclk / 4; break;
+ }
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_8:
+ case TX4927_CCFG_DIVMODE_10:
+ case TX4927_CCFG_DIVMODE_12:
+ case TX4927_CCFG_DIVMODE_16:
+ txx9_master_clock = txx9_gbus_clock / 4; break;
+ default:
+ txx9_master_clock = txx9_gbus_clock;
+ }
+ }
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+ /* CCFG */
+ tx4927_wdr_init();
+ /* clear BusErrorOnWrite flag (W1C) */
+ tx4927_ccfg_set(TX4927_CCFG_BEOW);
+ /* enable Timeout BusError */
+ if (txx9_ccfg_toeon)
+ tx4927_ccfg_set(TX4927_CCFG_TOE);
+
+ /* DMA selection */
+ txx9_clear64(&tx4927_ccfgptr->pcfg, TX4927_PCFG_DMASEL_ALL);
+
+ /* Use external clock for external arbiter */
+ if (!(____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCIARB))
+ txx9_clear64(&tx4927_ccfgptr->pcfg, TX4927_PCFG_PCICLKEN_ALL);
+
+ printk(KERN_INFO "%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+ txx9_pcode_str,
+ (cpuclk + 500000) / 1000000,
+ (txx9_master_clock + 500000) / 1000000,
+ (__u32)____raw_readq(&tx4927_ccfgptr->crir),
+ (unsigned long long)____raw_readq(&tx4927_ccfgptr->ccfg),
+ (unsigned long long)____raw_readq(&tx4927_ccfgptr->pcfg));
+
+ printk(KERN_INFO "%s SDRAMC --", txx9_pcode_str);
+ for (i = 0; i < 4; i++) {
+ __u64 cr = TX4927_SDRAMC_CR(i);
+ unsigned long base, size;
+ if (!((__u32)cr & 0x00000400))
+ continue; /* disabled */
+ base = (unsigned long)(cr >> 49) << 21;
+ size = (((unsigned long)(cr >> 33) & 0x7fff) + 1) << 21;
+ printk(" CR%d:%016llx", i, (unsigned long long)cr);
+ tx4927_sdram_resource[i].name = "SDRAM";
+ tx4927_sdram_resource[i].start = base;
+ tx4927_sdram_resource[i].end = base + size - 1;
+ tx4927_sdram_resource[i].flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4927_sdram_resource[i]);
+ }
+ printk(" TR:%09llx\n",
+ (unsigned long long)____raw_readq(&tx4927_sdramcptr->tr));
+
+ /* TMR */
+ /* disable all timers */
+ for (i = 0; i < TX4927_NR_TMR; i++)
+ txx9_tmr_init(TX4927_TMR_REG(i) & 0xfffffffffULL);
+
+ /* PIO */
+ txx9_gpio_init(TX4927_PIO_REG & 0xfffffffffULL, 0, TX4927_NUM_PIO);
+ __raw_writel(0, &tx4927_pioptr->maskcpu);
+ __raw_writel(0, &tx4927_pioptr->maskext);
+}
+
+void __init tx4927_time_init(unsigned int tmrnr)
+{
+ if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS)
+ txx9_clockevent_init(TX4927_TMR_REG(tmrnr) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_TMR(tmrnr),
+ TXX9_IMCLK);
+}
+
+void __init tx4927_setup_serial(void)
+{
+#ifdef CONFIG_SERIAL_TXX9
+ int i;
+ struct uart_port req;
+
+ for (i = 0; i < 2; i++) {
+ memset(&req, 0, sizeof(req));
+ req.line = i;
+ req.iotype = UPIO_MEM;
+ req.membase = (unsigned char __iomem *)TX4927_SIO_REG(i);
+ req.mapbase = TX4927_SIO_REG(i) & 0xfffffffffULL;
+ req.irq = TXX9_IRQ_BASE + TX4927_IR_SIO(i);
+ req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+ req.uartclk = TXX9_IMCLK;
+ early_serial_txx9_setup(&req);
+ }
+#endif /* CONFIG_SERIAL_TXX9 */
+}
diff --git a/arch/mips/txx9/generic/setup_tx4938.c b/arch/mips/txx9/generic/setup_tx4938.c
new file mode 100644
index 00000000000..317378d8579
--- /dev/null
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -0,0 +1,259 @@
+/*
+ * TX4938/4937 setup routines
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/serial_core.h>
+#include <linux/param.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/tx4938.h>
+
+void __init tx4938_wdr_init(void)
+{
+ /* clear WatchDogReset (W1C) */
+ tx4938_ccfg_set(TX4938_CCFG_WDRST);
+ /* do reset on watchdog */
+ tx4938_ccfg_set(TX4938_CCFG_WR);
+}
+
+static struct resource tx4938_sdram_resource[4];
+static struct resource tx4938_sram_resource;
+
+#define TX4938_SRAM_SIZE 0x800
+
+void __init tx4938_setup(void)
+{
+ int i;
+ __u32 divmode;
+ int cpuclk = 0;
+ u64 ccfg;
+
+ txx9_reg_res_init(TX4938_REV_PCODE(), TX4938_REG_BASE,
+ TX4938_REG_SIZE);
+
+ /* SDRAMC,EBUSC are configured by PROM */
+ for (i = 0; i < 8; i++) {
+ if (!(TX4938_EBUSC_CR(i) & 0x8))
+ continue; /* disabled */
+ txx9_ce_res[i].start = (unsigned long)TX4938_EBUSC_BA(i);
+ txx9_ce_res[i].end =
+ txx9_ce_res[i].start + TX4938_EBUSC_SIZE(i) - 1;
+ request_resource(&iomem_resource, &txx9_ce_res[i]);
+ }
+
+ /* clocks */
+ ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
+ if (txx9_master_clock) {
+ /* calculate gbus_clock and cpu_clock from master_clock */
+ divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_8:
+ case TX4938_CCFG_DIVMODE_10:
+ case TX4938_CCFG_DIVMODE_12:
+ case TX4938_CCFG_DIVMODE_16:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_gbus_clock = txx9_master_clock * 4; break;
+ default:
+ txx9_gbus_clock = txx9_master_clock;
+ }
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_2:
+ case TX4938_CCFG_DIVMODE_8:
+ cpuclk = txx9_gbus_clock * 2; break;
+ case TX4938_CCFG_DIVMODE_2_5:
+ case TX4938_CCFG_DIVMODE_10:
+ cpuclk = txx9_gbus_clock * 5 / 2; break;
+ case TX4938_CCFG_DIVMODE_3:
+ case TX4938_CCFG_DIVMODE_12:
+ cpuclk = txx9_gbus_clock * 3; break;
+ case TX4938_CCFG_DIVMODE_4:
+ case TX4938_CCFG_DIVMODE_16:
+ cpuclk = txx9_gbus_clock * 4; break;
+ case TX4938_CCFG_DIVMODE_4_5:
+ case TX4938_CCFG_DIVMODE_18:
+ cpuclk = txx9_gbus_clock * 9 / 2; break;
+ }
+ txx9_cpu_clock = cpuclk;
+ } else {
+ if (txx9_cpu_clock == 0)
+ txx9_cpu_clock = 300000000; /* 300MHz */
+ /* calculate gbus_clock and master_clock from cpu_clock */
+ cpuclk = txx9_cpu_clock;
+ divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_2:
+ case TX4938_CCFG_DIVMODE_8:
+ txx9_gbus_clock = cpuclk / 2; break;
+ case TX4938_CCFG_DIVMODE_2_5:
+ case TX4938_CCFG_DIVMODE_10:
+ txx9_gbus_clock = cpuclk * 2 / 5; break;
+ case TX4938_CCFG_DIVMODE_3:
+ case TX4938_CCFG_DIVMODE_12:
+ txx9_gbus_clock = cpuclk / 3; break;
+ case TX4938_CCFG_DIVMODE_4:
+ case TX4938_CCFG_DIVMODE_16:
+ txx9_gbus_clock = cpuclk / 4; break;
+ case TX4938_CCFG_DIVMODE_4_5:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_gbus_clock = cpuclk * 2 / 9; break;
+ }
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_8:
+ case TX4938_CCFG_DIVMODE_10:
+ case TX4938_CCFG_DIVMODE_12:
+ case TX4938_CCFG_DIVMODE_16:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_master_clock = txx9_gbus_clock / 4; break;
+ default:
+ txx9_master_clock = txx9_gbus_clock;
+ }
+ }
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+ /* CCFG */
+ tx4938_wdr_init();
+ /* clear BusErrorOnWrite flag (W1C) */
+ tx4938_ccfg_set(TX4938_CCFG_BEOW);
+ /* enable Timeout BusError */
+ if (txx9_ccfg_toeon)
+ tx4938_ccfg_set(TX4938_CCFG_TOE);
+
+ /* DMA selection */
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_DMASEL_ALL);
+
+ /* Use external clock for external arbiter */
+ if (!(____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB))
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_PCICLKEN_ALL);
+
+ printk(KERN_INFO "%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+ txx9_pcode_str,
+ (cpuclk + 500000) / 1000000,
+ (txx9_master_clock + 500000) / 1000000,
+ (__u32)____raw_readq(&tx4938_ccfgptr->crir),
+ (unsigned long long)____raw_readq(&tx4938_ccfgptr->ccfg),
+ (unsigned long long)____raw_readq(&tx4938_ccfgptr->pcfg));
+
+ printk(KERN_INFO "%s SDRAMC --", txx9_pcode_str);
+ for (i = 0; i < 4; i++) {
+ __u64 cr = TX4938_SDRAMC_CR(i);
+ unsigned long base, size;
+ if (!((__u32)cr & 0x00000400))
+ continue; /* disabled */
+ base = (unsigned long)(cr >> 49) << 21;
+ size = (((unsigned long)(cr >> 33) & 0x7fff) + 1) << 21;
+ printk(" CR%d:%016llx", i, (unsigned long long)cr);
+ tx4938_sdram_resource[i].name = "SDRAM";
+ tx4938_sdram_resource[i].start = base;
+ tx4938_sdram_resource[i].end = base + size - 1;
+ tx4938_sdram_resource[i].flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4938_sdram_resource[i]);
+ }
+ printk(" TR:%09llx\n",
+ (unsigned long long)____raw_readq(&tx4938_sdramcptr->tr));
+
+ /* SRAM */
+ if (txx9_pcode == 0x4938 && ____raw_readq(&tx4938_sramcptr->cr) & 1) {
+ unsigned int size = TX4938_SRAM_SIZE;
+ tx4938_sram_resource.name = "SRAM";
+ tx4938_sram_resource.start =
+ (____raw_readq(&tx4938_sramcptr->cr) >> (39-11))
+ & ~(size - 1);
+ tx4938_sram_resource.end =
+ tx4938_sram_resource.start + TX4938_SRAM_SIZE - 1;
+ tx4938_sram_resource.flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4938_sram_resource);
+ }
+
+ /* TMR */
+ /* disable all timers */
+ for (i = 0; i < TX4938_NR_TMR; i++)
+ txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
+
+ /* DMA */
+ for (i = 0; i < 2; i++)
+ ____raw_writeq(TX4938_DMA_MCR_MSTEN,
+ (void __iomem *)(TX4938_DMA_REG(i) + 0x50));
+
+ /* PIO */
+ txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, TX4938_NUM_PIO);
+ __raw_writel(0, &tx4938_pioptr->maskcpu);
+ __raw_writel(0, &tx4938_pioptr->maskext);
+
+ if (txx9_pcode == 0x4938) {
+ __u64 pcfg = ____raw_readq(&tx4938_ccfgptr->pcfg);
+ /* set PCIC1 reset */
+ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+ if (pcfg & (TX4938_PCFG_ETH0_SEL | TX4938_PCFG_ETH1_SEL)) {
+ mdelay(1); /* at least 128 cpu clock */
+ /* clear PCIC1 reset */
+ txx9_clear64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_PCIC1RST);
+ } else {
+ printk(KERN_INFO "%s: stop PCIC1\n", txx9_pcode_str);
+ /* stop PCIC1 */
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_PCIC1CKD);
+ }
+ if (!(pcfg & TX4938_PCFG_ETH0_SEL)) {
+ printk(KERN_INFO "%s: stop ETH0\n", txx9_pcode_str);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH0RST);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH0CKD);
+ }
+ if (!(pcfg & TX4938_PCFG_ETH1_SEL)) {
+ printk(KERN_INFO "%s: stop ETH1\n", txx9_pcode_str);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH1RST);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH1CKD);
+ }
+ }
+}
+
+void __init tx4938_time_init(unsigned int tmrnr)
+{
+ if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_TINTDIS)
+ txx9_clockevent_init(TX4938_TMR_REG(tmrnr) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_TMR(tmrnr),
+ TXX9_IMCLK);
+}
+
+void __init tx4938_setup_serial(void)
+{
+#ifdef CONFIG_SERIAL_TXX9
+ int i;
+ struct uart_port req;
+ unsigned int ch_mask = 0;
+
+ if (__raw_readq(&tx4938_ccfgptr->pcfg) & TX4938_PCFG_ETH0_SEL)
+ ch_mask |= 1 << 1; /* disable SIO1 by PCFG setting */
+ for (i = 0; i < 2; i++) {
+ if ((1 << i) & ch_mask)
+ continue;
+ memset(&req, 0, sizeof(req));
+ req.line = i;
+ req.iotype = UPIO_MEM;
+ req.membase = (unsigned char __iomem *)TX4938_SIO_REG(i);
+ req.mapbase = TX4938_SIO_REG(i) & 0xfffffffffULL;
+ req.irq = TXX9_IRQ_BASE + TX4938_IR_SIO(i);
+ req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+ req.uartclk = TXX9_IMCLK;
+ early_serial_txx9_setup(&req);
+ }
+#endif /* CONFIG_SERIAL_TXX9 */
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 14:52:42 +0000