This change (and the two that will follow it) can be pulled from http://labxtechnologies.com/u-boot.git. This is in preparation for the next patch adds a new board that uses the 5271. Please let me know if this patch or the following ones need any work.
CHANGELOG * Add support for Freescale M5271 processor Patch by Zachary Landau, 26 Jan 2006
Signed-off-by: Zachary P. Landau zachary.landau@labxtechnologies.com
---
CHANGELOG | 3 +++ cpu/mcf52x2/cpu.c | 40 ++++++++++++++++++++++++++++++++++++++++ cpu/mcf52x2/cpu_init.c | 37 +++++++++++++++++++++++++++++++++++++ cpu/mcf52x2/fec.c | 22 +++++++++++++++++++++- cpu/mcf52x2/interrupts.c | 7 ++++++- cpu/mcf52x2/serial.c | 8 +++++++- cpu/mcf52x2/start.S | 34 +++++++++++++++++++++++++++++++++- include/asm-m68k/mcftimer.h | 2 +- include/asm-m68k/mcfuart.h | 2 +- include/asm-m68k/ptrace.h | 2 +- lib_m68k/time.c | 9 +++++++-- 11 files changed, 157 insertions(+), 9 deletions(-)
eacbd317757327e8e7f018f5701c950429c4c6ae diff --git a/CHANGELOG b/CHANGELOG index 2f10f7f..607cde1 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -2,6 +2,9 @@ Changes since U-Boot 1.1.4: ======================================================================
+* Add support for Freescale M5271 processor + Patch by Zachary Landau, 26 Jan 2006 + * Fix 28F256J3A support on PM520 board (without bank-switching only 32 MB can be accessed)
diff --git a/cpu/mcf52x2/cpu.c b/cpu/mcf52x2/cpu.c index 32a524f..302832b 100644 --- a/cpu/mcf52x2/cpu.c +++ b/cpu/mcf52x2/cpu.c @@ -25,6 +25,11 @@ #include <watchdog.h> #include <command.h>
+#ifdef CONFIG_M5271 +#include <asm/immap_5271.h> +#include <asm/m5271.h> +#endif + #ifdef CONFIG_M5272 #include <asm/immap_5272.h> #include <asm/m5272.h> @@ -38,6 +43,41 @@ #include <asm/m5249.h> #endif
+#ifdef CONFIG_M5271 +int checkcpu (void) +{ + puts ("CPU: MOTOROLA Coldfire MCF5271\n"); + return 0; +} + +int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) { + mbar_writeByte(MCF_RCM_RCR, + MCF_RCM_RCR_SOFTRST | MCF_RCM_RCR_FRCRSTOUT); + return 0; +}; + +#if defined(CONFIG_WATCHDOG) +void watchdog_reset (void) +{ + mbar_writeShort(MCF_WTM_WSR, 0x5555); + mbar_writeShort(MCF_WTM_WSR, 0xAAAA); +} + +int watchdog_disable (void) +{ + mbar_writeShort(MCF_WTM_WCR, 0); + return (0); +} + +int watchdog_init (void) +{ + mbar_writeShort(MCF_WTM_WCNTR, CONFIG_WATCHDOG_TIMEOUT); + mbar_writeShort(MCF_WTM_WCR, MCF_WTM_WCR_EN); + return (0); +} +#endif /* #ifdef CONFIG_WATCHDOG */ + +#endif
#ifdef CONFIG_M5272 int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) { diff --git a/cpu/mcf52x2/cpu_init.c b/cpu/mcf52x2/cpu_init.c index 350c431..d33adc2 100644 --- a/cpu/mcf52x2/cpu_init.c +++ b/cpu/mcf52x2/cpu_init.c @@ -24,6 +24,11 @@ #include <common.h> #include <watchdog.h>
+#ifdef CONFIG_M5271 +#include <asm/m5271.h> +#include <asm/immap_5271.h> +#endif + #ifdef CONFIG_M5272 #include <asm/m5272.h> #include <asm/immap_5272.h> @@ -38,6 +43,38 @@ #include <asm/m5249.h> #endif
+#if defined(CONFIG_M5271) +void cpu_init_f (void) +{ +#ifndef CONFIG_WATCHDOG + /* Disable the watchdog if we aren't using it */ + mbar_writeShort(MCF_WTM_WCR, 0); +#endif + + /* Set clockspeed to 100MHz */ + mbar_writeShort(MCF_FMPLL_SYNCR, + MCF_FMPLL_SYNCR_MFD(0) | MCF_FMPLL_SYNCR_RFD(0)); + while (!mbar_readByte(MCF_FMPLL_SYNSR) & MCF_FMPLL_SYNSR_LOCK); + + /* Enable UART pins */ + mbar_writeShort(MCF_GPIO_PAR_UART, MCF_GPIO_PAR_UART_U0TXD | + MCF_GPIO_PAR_UART_U0RXD | + MCF_GPIO_PAR_UART_U1RXD_UART1 | + MCF_GPIO_PAR_UART_U1TXD_UART1); + + /* Enable Ethernet pins */ + mbar_writeByte(MCF_GPIO_PAR_FECI2C, CFG_FECI2C); +} + +/* + * initialize higher level parts of CPU like timers + */ +int cpu_init_r (void) +{ + return (0); +} +#endif + #if defined(CONFIG_M5272) /* * Breath some life into the CPU... diff --git a/cpu/mcf52x2/fec.c b/cpu/mcf52x2/fec.c index a5c50af..f207dd6 100644 --- a/cpu/mcf52x2/fec.c +++ b/cpu/mcf52x2/fec.c @@ -25,6 +25,11 @@ #include <malloc.h> #include <asm/fec.h>
+#ifdef CONFIG_M5271 +#include <asm/m5271.h> +#include <asm/immap_5271.h> +#endif + #ifdef CONFIG_M5272 #include <asm/m5272.h> #include <asm/immap_5272.h> @@ -41,7 +46,7 @@ #ifdef CONFIG_M5272 #define FEC_ADDR (CFG_MBAR + 0x840) #endif -#ifdef CONFIG_M5282 +#if defined(CONFIG_M5282) || defined(CONFIG_M5271) #define FEC_ADDR (CFG_MBAR + 0x1000) #endif
@@ -240,10 +245,22 @@ int eth_init (bd_t * bd) #endif #undef ea
+#ifdef CONFIG_M5271 + /* Clear multicast address hash table + */ + fecp->fec_ghash_table_high = 0; + fecp->fec_ghash_table_low = 0; + + /* Clear individual address hash table + */ + fecp->fec_ihash_table_high = 0; + fecp->fec_ihash_table_low = 0; +#else /* Clear multicast address hash table */ fecp->fec_hash_table_high = 0; fecp->fec_hash_table_low = 0; +#endif
/* Set maximum receive buffer size. */ @@ -295,6 +312,9 @@ int eth_init (bd_t * bd) fecp->fec_x_cntrl = FEC_TCNTRL_FDEN; #else /* Half duplex mode */ fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE | FEC_RCNTRL_DRT; +#ifdef CONFIG_M5271 + fecp->fec_r_cntrl |= (PKT_MAXBUF_SIZE << 16); /* set max frame length */ +#endif fecp->fec_x_cntrl = 0; #endif /* Set MII speed */ diff --git a/cpu/mcf52x2/interrupts.c b/cpu/mcf52x2/interrupts.c index 868df39..116747a 100644 --- a/cpu/mcf52x2/interrupts.c +++ b/cpu/mcf52x2/interrupts.c @@ -27,6 +27,11 @@ #include <watchdog.h> #include <asm/processor.h>
+#ifdef CONFIG_M5271 +#include <asm/m5271.h> +#include <asm/immap_5271.h> +#endif + #ifdef CONFIG_M5272 #include <asm/m5272.h> #include <asm/immap_5272.h> @@ -171,7 +176,7 @@ int interrupt_init (void) } #endif
-#ifdef CONFIG_M5282 +#if defined(CONFIG_M5282) || defined(CONFIG_M5271) int interrupt_init (void) { return 0; diff --git a/cpu/mcf52x2/serial.c b/cpu/mcf52x2/serial.c index c730922..641f0d9 100644 --- a/cpu/mcf52x2/serial.c +++ b/cpu/mcf52x2/serial.c @@ -26,6 +26,10 @@
#include <asm/mcfuart.h>
+#ifdef CONFIG_M5271 +#include <asm/m5271.h> +#endif + #ifdef CONFIG_M5272 #include <asm/m5272.h> #endif @@ -46,7 +50,7 @@
void rs_serial_setbaudrate(int port,int baudrate) { -#if defined(CONFIG_M5272) || defined(CONFIG_M5249) +#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5271) volatile unsigned char *uartp; double clock, fraction;
@@ -61,8 +65,10 @@ void rs_serial_setbaudrate(int port,int
uartp[MCFUART_UBG1] = (((int)clock >> 8) & 0xff); /* set msb baud */ uartp[MCFUART_UBG2] = ((int)clock & 0xff); /* set lsb baud */ +#ifndef CONFIG_M5271 uartp[MCFUART_UFPD] = ((int)fraction & 0xf); /* set baud fraction adjust */ #endif +#endif };
void rs_serial_init(int port,int baudrate) diff --git a/cpu/mcf52x2/start.S b/cpu/mcf52x2/start.S index b4926e2..8ae9591 100644 --- a/cpu/mcf52x2/start.S +++ b/cpu/mcf52x2/start.S @@ -55,7 +55,11 @@ */ _vectors:
+#ifndef CONFIG_M5271 .long 0x00000000, _START +#else +.long 0x00000000, 0x400 /* Flash offset is 0 until we setup CS0 */ +#endif .long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT .long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT .long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT @@ -124,26 +128,42 @@ _start: movec %d0, %RAMBAR0 #endif /* #if defined(CONFIG_M5272) || defined(CONFIG_M5249) */
-#ifdef CONFIG_M5282 +#if defined(CONFIG_M5282) || defined(CONFIG_M5271) /* Initialize IPSBAR */ move.l #(CFG_MBAR + 1), %d0 /* set IPSBAR address + valid flag */ move.l %d0, 0x40000000
+#ifdef CONFIG_M5282 /* Initialize FLASHBAR: locate internal Flash and validate it */ move.l #(CFG_INT_FLASH_BASE + 0x21), %d0 movec %d0, %RAMBAR0 +#endif
/* Initialize RAMBAR1: locate SRAM and validate it */ move.l #(CFG_INIT_RAM_ADDR + 0x21), %d0 movec %d0, %RAMBAR1 +#ifdef CONFIG_M5271 + move.l #(_flash_setup-CFG_FLASH_BASE), %a0 + move.l #(_flash_setup_end-CFG_FLASH_BASE), %a1 + move.l #(CFG_INIT_RAM_ADDR), %a2 +_copy_flash: + move.l (%a0)+, (%a2)+ + cmp.l %a0, %a1 + bgt.s _copy_flash +#endif + + jmp CFG_INIT_RAM_ADDR +_after_flash_copy: #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 #(CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET), %sp @@ -158,6 +178,18 @@ _start:
/*------------------------------------------------------------------------------*/
+#ifdef CONFIG_M5271 +_flash_setup: + move.l #0x1000, %d0 + move.w %d0, 0x40000080 + move.l #0x2180, %d0 + move.w %d0, 0x4000008A + move.l #0x3f0001, %d0 + move.l %d0, 0x40000084 + jmp _after_flash_copy.L +_flash_setup_end: +#endif + /* * void relocate_code (addr_sp, gd, addr_moni) * diff --git a/include/asm-m68k/mcftimer.h b/include/asm-m68k/mcftimer.h index 047950b..a73b80e 100644 --- a/include/asm-m68k/mcftimer.h +++ b/include/asm-m68k/mcftimer.h @@ -45,7 +45,7 @@ #elif defined(CONFIG_M5249) || defined(CONFIG_M5307) || defined(CONFIG_M5407) #define MCFTIMER_BASE1 0x140 /* Base address of TIMER1 */ #define MCFTIMER_BASE2 0x180 /* Base address of TIMER2 */ -#elif defined(CONFIG_M5282) +#elif defined(CONFIG_M5282) | defined(CONFIG_M5271) #define MCFTIMER_BASE1 0x150000 /* Base address of TIMER1 */ #define MCFTIMER_BASE2 0x160000 /* Base address of TIMER2 */ #define MCFTIMER_BASE3 0x170000 /* Base address of TIMER4 */ diff --git a/include/asm-m68k/mcfuart.h b/include/asm-m68k/mcfuart.h index e5082a9..7c0999d 100644 --- a/include/asm-m68k/mcfuart.h +++ b/include/asm-m68k/mcfuart.h @@ -46,7 +46,7 @@ #define MCFUART_BASE1 0x140 /* Base address of UART1 */ #define MCFUART_BASE2 0x180 /* Base address of UART2 */ #endif -#elif defined(CONFIG_M5282) +#elif defined(CONFIG_M5282) || defined(CONFIG_M5271) #define MCFUART_BASE1 0x200 /* Base address of UART1 */ #define MCFUART_BASE2 0x240 /* Base address of UART2 */ #define MCFUART_BASE3 0x280 /* Base address of UART3 */ diff --git a/include/asm-m68k/ptrace.h b/include/asm-m68k/ptrace.h index a6d3d74..75b2418 100644 --- a/include/asm-m68k/ptrace.h +++ b/include/asm-m68k/ptrace.h @@ -43,7 +43,7 @@ struct pt_regs { ulong a4; ulong a5; ulong a6; -#if defined(CONFIG_M5272) || defined(CONFIG_M5282) || defined(CONFIG_M5249) +#if defined(CONFIG_M5272) || defined(CONFIG_M5282) || defined(CONFIG_M5249) || defined(CONFIG_M5271) unsigned format : 4; /* frame format specifier */ unsigned vector : 12; /* vector offset */ unsigned short sr; diff --git a/lib_m68k/time.c b/lib_m68k/time.c index 1d6d297..d45e470 100644 --- a/lib_m68k/time.c +++ b/lib_m68k/time.c @@ -27,6 +27,11 @@
#include <asm/mcftimer.h>
+#ifdef CONFIG_M5271 +#include <asm/m5271.h> +#include <asm/immap_5271.h> +#endif + #ifdef CONFIG_M5272 #include <asm/m5272.h> #include <asm/immap_5272.h> @@ -43,7 +48,7 @@
static ulong timestamp; -#ifdef CONFIG_M5282 +#if defined(CONFIG_M5282) || defined(CONFIG_M5271) static unsigned short lastinc; #endif
@@ -127,7 +132,7 @@ void set_timer (ulong t) } #endif
-#if defined(CONFIG_M5282) +#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
void udelay(unsigned long usec) {