ColdFire: Add M5208EVB and MCF520x CPU support
Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
diff --git a/cpu/mcf52x2/config.mk b/cpu/mcf52x2/config.mk
index 8292736..52751be 100644
--- a/cpu/mcf52x2/config.mk
+++ b/cpu/mcf52x2/config.mk
@@ -26,6 +26,7 @@
PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
+is5208:=$(shell grep CONFIG_M5208 $(TOPDIR)/include/$(cfg))
is5249:=$(shell grep CONFIG_M5249 $(TOPDIR)/include/$(cfg))
is5253:=$(shell grep CONFIG_M5253 $(TOPDIR)/include/$(cfg))
is5271:=$(shell grep CONFIG_M5271 $(TOPDIR)/include/$(cfg))
@@ -36,6 +37,9 @@
ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
+ifneq (,$(findstring CONFIG_M5208,$(is5208)))
+PLATFORM_CPPFLAGS += -mcpu=5208
+endif
ifneq (,$(findstring CONFIG_M5249,$(is5249)))
PLATFORM_CPPFLAGS += -mcpu=5249
endif
diff --git a/cpu/mcf52x2/cpu.c b/cpu/mcf52x2/cpu.c
index 32d6c40..2cfe631 100644
--- a/cpu/mcf52x2/cpu.c
+++ b/cpu/mcf52x2/cpu.c
@@ -34,6 +34,72 @@
#include <asm/immap.h>
#include <netdev.h>
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_M5208
+int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+{
+ volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
+
+ udelay(1000);
+
+ rcm->rcr = RCM_RCR_SOFTRST;
+
+ /* we don't return! */
+ return 0;
+};
+
+int checkcpu(void)
+{
+ char buf1[32], buf2[32];
+
+ printf("CPU: Freescale Coldfire MCF5208\n"
+ " CPU CLK %s MHz BUS CLK %s MHz\n",
+ strmhz(buf1, gd->cpu_clk),
+ strmhz(buf2, gd->bus_clk));
+ return 0;
+};
+
+#if defined(CONFIG_WATCHDOG)
+/* Called by macro WATCHDOG_RESET */
+void watchdog_reset(void)
+{
+ volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdt->sr = 0x5555;
+ wdt->sr = 0xAAAA;
+}
+
+int watchdog_disable(void)
+{
+ volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+
+ wdt->sr = 0x5555; /* reset watchdog counteDECLARE_GLOBAL_DATA_PTR;
+r */
+ wdt->sr = 0xAAAA;
+ wdt->cr = 0; /* disable watchdog timer */
+
+ puts("WATCHDOG:disabled\n");
+ return (0);
+}
+
+int watchdog_init(void)
+{
+ volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+
+ wdt->cr = 0; /* disable watchdog */
+
+ /* set timeout and enable watchdog */
+ wdt->mr =
+ ((CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000)) - 1;
+ wdt->sr = 0x5555; /* reset watchdog counter */
+ wdt->sr = 0xAAAA;
+
+ puts("WATCHDOG:enabled\n");
+ return (0);
+}
+#endif /* #ifdef CONFIG_WATCHDOG */
+#endif /* #ifdef CONFIG_M5208 */
+
#ifdef CONFIG_M5271
/*
* Both MCF5270 and MCF5271 are members of the MPC5271 family. Try to
diff --git a/cpu/mcf52x2/cpu_init.c b/cpu/mcf52x2/cpu_init.c
index 11f70b0..7cea655 100644
--- a/cpu/mcf52x2/cpu_init.c
+++ b/cpu/mcf52x2/cpu_init.c
@@ -101,6 +101,95 @@
}
#endif
+#if defined(CONFIG_M5208)
+void cpu_init_f(void)
+{
+ volatile scm1_t *scm1 = (scm1_t *) MMAP_SCM1;
+
+#ifndef CONFIG_WATCHDOG
+ volatile wdog_t *wdg = (wdog_t *) MMAP_WDOG;
+
+ /* Disable the watchdog if we aren't using it */
+ wdg->cr = 0;
+#endif
+
+ scm1->mpr = 0x77777777;
+ scm1->pacra = 0;
+ scm1->pacrb = 0;
+ scm1->pacrc = 0;
+ scm1->pacrd = 0;
+ scm1->pacre = 0;
+ scm1->pacrf = 0;
+
+ /* FlexBus Chipselect */
+ init_fbcs();
+
+ icache_enable();
+}
+
+/* initialize higher level parts of CPU like timers */
+int cpu_init_r(void)
+{
+ return (0);
+}
+
+void uart_port_conf(void)
+{
+ volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+ /* Setup Ports: */
+ switch (CONFIG_SYS_UART_PORT) {
+ case 0:
+ gpio->par_uart &= GPIO_PAR_UART0_MASK;
+ gpio->par_uart |= (GPIO_PAR_UART_U0TXD | GPIO_PAR_UART_U0RXD);
+ break;
+ case 1:
+ gpio->par_uart &= GPIO_PAR_UART0_MASK;
+ gpio->par_uart |= (GPIO_PAR_UART_U1TXD | GPIO_PAR_UART_U1RXD);
+ break;
+ case 2:
+#ifdef CONFIG_SYS_UART2_PRI_GPIO
+ gpio->par_timer &=
+ (GPIO_PAR_TMR_TIN0_MASK | GPIO_PAR_TMR_TIN1_MASK);
+ gpio->par_timer |=
+ (GPIO_PAR_TMR_TIN0_U2TXD | GPIO_PAR_TMR_TIN1_U2RXD);
+#endif
+#ifdef CONFIG_SYS_UART2_ALT1_GPIO
+ gpio->par_feci2c &=
+ (GPIO_PAR_FECI2C_MDC_MASK | GPIO_PAR_FECI2C_MDIO_MASK);
+ gpio->par_feci2c |=
+ (GPIO_PAR_FECI2C_MDC_U2TXD | GPIO_PAR_FECI2C_MDIO_U2RXD);
+#endif
+#ifdef CONFIG_SYS_UART2_ALT1_GPIO
+ gpio->par_feci2c &=
+ (GPIO_PAR_FECI2C_SDA_MASK | GPIO_PAR_FECI2C_SCL_MASK);
+ gpio->par_feci2c |=
+ (GPIO_PAR_FECI2C_SDA_U2TXD | GPIO_PAR_FECI2C_SCL_U2RXD);
+#endif
+ break;
+ }
+}
+
+#if defined(CONFIG_CMD_NET)
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+ volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+ if (setclear) {
+ gpio->par_fec |=
+ GPIO_PAR_FEC_7W_FEC | GPIO_PAR_FEC_MII_FEC;
+ gpio->par_feci2c |=
+ GPIO_PAR_FECI2C_MDC_MDC | GPIO_PAR_FECI2C_MDIO_MDIO;
+ } else {
+ gpio->par_fec &=
+ (GPIO_PAR_FEC_7W_MASK & GPIO_PAR_FEC_MII_MASK);
+ gpio->par_feci2c &= GPIO_PAR_FECI2C_RMII_MASK;
+ }
+ return 0;
+}
+#endif /* CONFIG_CMD_NET */
+#endif /* CONFIG_M5208 */
+
#if defined(CONFIG_M5253)
/*
* Breath some life into the CPU...
diff --git a/cpu/mcf52x2/interrupts.c b/cpu/mcf52x2/interrupts.c
index 0181e4b..dff8c6a 100644
--- a/cpu/mcf52x2/interrupts.c
+++ b/cpu/mcf52x2/interrupts.c
@@ -59,13 +59,19 @@
#endif /* CONFIG_MCFTMR */
#endif /* CONFIG_M5272 */
-#if defined(CONFIG_M5282) || defined(CONFIG_M5271) || defined(CONFIG_M5275)
+#if defined(CONFIG_M5208) || defined(CONFIG_M5282) || \
+ defined(CONFIG_M5271) || defined(CONFIG_M5275)
int interrupt_init(void)
{
volatile int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);
/* Make sure all interrupts are disabled */
+#if defined(CONFIG_M5208)
+ intp->imrl0 = 0xFFFFFFFF;
+ intp->imrh0 = 0xFFFFFFFF;
+#else
intp->imrl0 |= 0x1;
+#endif
enable_interrupts();
return 0;
diff --git a/cpu/mcf52x2/speed.c b/cpu/mcf52x2/speed.c
index c93a518..b485e1c 100644
--- a/cpu/mcf52x2/speed.c
+++ b/cpu/mcf52x2/speed.c
@@ -30,11 +30,16 @@
DECLARE_GLOBAL_DATA_PTR;
-/*
- * get_clocks() fills in gd->cpu_clock and gd->bus_clk
- */
+/* get_clocks() fills in gd->cpu_clock and gd->bus_clk */
int get_clocks (void)
{
+#if defined(CONFIG_M5208)
+ volatile pll_t *pll = (pll_t *) MMAP_PLL;
+
+ pll->odr = CONFIG_SYS_PLL_ODR;
+ pll->fdr = CONFIG_SYS_PLL_FDR;
+#endif
+
#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
volatile unsigned long cpll = mbar2_readLong(MCFSIM_PLLCR);
unsigned long pllcr;
@@ -77,7 +82,7 @@
#endif
gd->cpu_clk = CONFIG_SYS_CLK;
-#if defined(CONFIG_M5249) || defined(CONFIG_M5253) || \
+#if defined(CONFIG_M5208) || defined(CONFIG_M5249) || defined(CONFIG_M5253) || \
defined(CONFIG_M5271) || defined(CONFIG_M5275)
gd->bus_clk = gd->cpu_clk / 2;
#else
diff --git a/cpu/mcf52x2/start.S b/cpu/mcf52x2/start.S
index ba6b884..0dd4de5 100644
--- a/cpu/mcf52x2/start.S
+++ b/cpu/mcf52x2/start.S
@@ -120,6 +120,12 @@
nop
move.w #0x2700,%sr
+#if defined(CONFIG_M5208)
+ /* Initialize RAMBAR: locate SRAM and validate it */
+ move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0
+ movec %d0, %RAMBAR1
+#endif
+
#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5253)
move.l #(CONFIG_SYS_MBAR + 1), %d0 /* set MBAR address + valid flag */
move.c %d0, %MBAR
@@ -195,15 +201,6 @@
movec %d0, %RAMBAR1
#endif
-#if 0
- /* invalidate and disable cache */
- move.l #0x01000000, %d0 /* Invalidate cache cmd */
- movec %d0, %CACR /* Invalidate cache */
- move.l #0, %d0
- movec %d0, %ACR0
- movec %d0, %ACR1
-#endif
-
/* set stackpointer to end of internal ram to get some stackspace for the first c-code */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
clr.l %sp@-
@@ -340,6 +337,24 @@
/*------------------------------------------------------------------------------*/
/* cache functions */
+#ifdef CONFIG_M5208
+ .globl icache_enable
+icache_enable:
+ move.l #0x01000000, %d0 /* Invalidate cache cmd */
+ movec %d0, %CACR /* Invalidate cache */
+ move.l #(CONFIG_SYS_SDRAM_BASE + 0xC000), %d0 /* Setup cache mask */
+ movec %d0, %ACR0 /* Enable cache */
+
+ move.l #0x80000200, %d0 /* Setup cache mask */
+ movec %d0, %CACR /* Enable cache */
+ nop
+
+ move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-8), %a1
+ moveq #1, %d0
+ move.l %d0, (%a1)
+ rts
+#endif
+
#ifdef CONFIG_M5271
.globl icache_enable
icache_enable: