From e3b28e67329de99a315d509920760dcbc565f8c6 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Sat, 24 Apr 2010 19:27:05 +0200 Subject: mpc512x: add multi serial PSC support Extend mpc512x serial driver to support multiple PSC ports. Subsequent patches for PDM360NG board support make use of this functionality by defining CONFIG_SERIAL_MULTI in the board config file. Additionally the used PSC devices are specified by defining e.g. CONFIG_SYS_PSC1, CONFIG_SYS_PSC4 and CONFIG_SYS_PSC6. Support for PSC devices other than 1, 3, 4 and 6 is not added by this patch because these aren't used currently. In the future it can be easily added using DECLARE_PSC_SERIAL_FUNCTIONS(N) and INIT_PSC_SERIAL_STRUCTURE(N) macros in cpu/mpc512x/serial.c. Additionally you have to add code for registering added devices in serial_initialize() in common/serial.c. Signed-off-by: Anatolij Gustschin --- arch/powerpc/cpu/mpc512x/serial.c | 266 ++++++++++++++++++++++++++++++---- arch/powerpc/include/asm/immap_512x.h | 108 +++++++------- 2 files changed, 293 insertions(+), 81 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc512x/serial.c b/arch/powerpc/cpu/mpc512x/serial.c index ec2f41b..f421968 100644 --- a/arch/powerpc/cpu/mpc512x/serial.c +++ b/arch/powerpc/cpu/mpc512x/serial.c @@ -32,14 +32,16 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; -#if defined(CONFIG_PSC_CONSOLE) +#if defined(CONFIG_PSC_CONSOLE) || defined(CONFIG_SERIAL_MULTI) static void fifo_init (volatile psc512x_t *psc) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + u32 tfsize, rfsize; /* reset Rx & Tx fifo slice */ out_be32(&psc->rfcmd, PSC_FIFO_RESET_SLICE); @@ -49,8 +51,65 @@ static void fifo_init (volatile psc512x_t *psc) out_be32(&psc->rfintmask, 0); out_be32(&psc->tfintmask, 0); - out_be32(&psc->tfsize, CONSOLE_FIFO_TX_SIZE | (CONSOLE_FIFO_TX_ADDR << 16)); - out_be32(&psc->rfsize, CONSOLE_FIFO_RX_SIZE | (CONSOLE_FIFO_RX_ADDR << 16)); +#if defined(CONFIG_SERIAL_MULTI) + switch (((u32)psc & 0xf00) >> 8) { + case 0: + tfsize = FIFOC_PSC0_TX_SIZE | (FIFOC_PSC0_TX_ADDR << 16); + rfsize = FIFOC_PSC0_RX_SIZE | (FIFOC_PSC0_RX_ADDR << 16); + break; + case 1: + tfsize = FIFOC_PSC1_TX_SIZE | (FIFOC_PSC1_TX_ADDR << 16); + rfsize = FIFOC_PSC1_RX_SIZE | (FIFOC_PSC1_RX_ADDR << 16); + break; + case 2: + tfsize = FIFOC_PSC2_TX_SIZE | (FIFOC_PSC2_TX_ADDR << 16); + rfsize = FIFOC_PSC2_RX_SIZE | (FIFOC_PSC2_RX_ADDR << 16); + break; + case 3: + tfsize = FIFOC_PSC3_TX_SIZE | (FIFOC_PSC3_TX_ADDR << 16); + rfsize = FIFOC_PSC3_RX_SIZE | (FIFOC_PSC3_RX_ADDR << 16); + break; + case 4: + tfsize = FIFOC_PSC4_TX_SIZE | (FIFOC_PSC4_TX_ADDR << 16); + rfsize = FIFOC_PSC4_RX_SIZE | (FIFOC_PSC4_RX_ADDR << 16); + break; + case 5: + tfsize = FIFOC_PSC5_TX_SIZE | (FIFOC_PSC5_TX_ADDR << 16); + rfsize = FIFOC_PSC5_RX_SIZE | (FIFOC_PSC5_RX_ADDR << 16); + break; + case 6: + tfsize = FIFOC_PSC6_TX_SIZE | (FIFOC_PSC6_TX_ADDR << 16); + rfsize = FIFOC_PSC6_RX_SIZE | (FIFOC_PSC6_RX_ADDR << 16); + break; + case 7: + tfsize = FIFOC_PSC7_TX_SIZE | (FIFOC_PSC7_TX_ADDR << 16); + rfsize = FIFOC_PSC7_RX_SIZE | (FIFOC_PSC7_RX_ADDR << 16); + break; + case 8: + tfsize = FIFOC_PSC8_TX_SIZE | (FIFOC_PSC8_TX_ADDR << 16); + rfsize = FIFOC_PSC8_RX_SIZE | (FIFOC_PSC8_RX_ADDR << 16); + break; + case 9: + tfsize = FIFOC_PSC9_TX_SIZE | (FIFOC_PSC9_TX_ADDR << 16); + rfsize = FIFOC_PSC9_RX_SIZE | (FIFOC_PSC9_RX_ADDR << 16); + break; + case 10: + tfsize = FIFOC_PSC10_TX_SIZE | (FIFOC_PSC10_TX_ADDR << 16); + rfsize = FIFOC_PSC10_RX_SIZE | (FIFOC_PSC10_RX_ADDR << 16); + break; + case 11: + tfsize = FIFOC_PSC11_TX_SIZE | (FIFOC_PSC11_TX_ADDR << 16); + rfsize = FIFOC_PSC11_RX_SIZE | (FIFOC_PSC11_RX_ADDR << 16); + break; + default: + return; + } +#else + tfsize = CONSOLE_FIFO_TX_SIZE | (CONSOLE_FIFO_TX_ADDR << 16); + rfsize = CONSOLE_FIFO_RX_SIZE | (CONSOLE_FIFO_RX_ADDR << 16); +#endif + out_be32(&psc->tfsize, tfsize); + out_be32(&psc->rfsize, rfsize); /* enable Tx & Rx FIFO slice */ out_be32(&psc->rfcmd, PSC_FIFO_ENABLE_SLICE); @@ -60,24 +119,47 @@ static void fifo_init (volatile psc512x_t *psc) __asm__ volatile ("sync"); } -void serial_setbrg(void) +void serial_setbrg_dev(unsigned int idx) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; unsigned long baseclk, div; + unsigned long baudrate; + char buf[16]; + char *br_env; + + baudrate = gd->baudrate; + if (idx != CONFIG_PSC_CONSOLE) { + /* Allows setting baudrate for other serial devices + * on PSCx using environment. If not specified, use + * the same baudrate as for console. + */ + sprintf(buf, "psc%d_baudrate", idx); + br_env = getenv(buf); + if (br_env) + baudrate = simple_strtoul(br_env, NULL, 10); + + debug("%s: idx %d, baudrate %d\n", __func__, idx, baudrate); + } - /* calculate dividor for setting PSC CTUR and CTLR registers */ + /* calculate divisor for setting PSC CTUR and CTLR registers */ baseclk = (gd->ips_clk + 8) / 16; - div = (baseclk + (gd->baudrate / 2)) / gd->baudrate; + div = (baseclk + (baudrate / 2)) / baudrate; out_8(&psc->ctur, (div >> 8) & 0xff); out_8(&psc->ctlr, div & 0xff); /* set baudrate */ } -int serial_init(void) +int serial_init_dev(unsigned int idx) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; +#if defined(CONFIG_SERIAL_MULTI) + u32 reg; + + reg = in_be32(&im->clk.sccr[0]); + out_be32(&im->clk.sccr[0], reg | CLOCK_SCCR1_PSC_EN(idx)); +#endif fifo_init (psc); @@ -100,7 +182,7 @@ int serial_init(void) out_8(&psc->mode, PSC_MODE_1_STOPBIT); /* set baudrate */ - serial_setbrg(); + serial_setbrg_dev(idx); /* disable all interrupts */ out_be16(&psc->psc_imr, 0); @@ -113,13 +195,27 @@ int serial_init(void) return 0; } -void serial_putc (const char c) +int serial_uninit_dev(unsigned int idx) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; + u32 reg; + + out_8(&psc->command, PSC_RX_DISABLE | PSC_TX_DISABLE); + reg = in_be32(&im->clk.sccr[0]); + reg &= ~CLOCK_SCCR1_PSC_EN(idx); + out_be32(&im->clk.sccr[0], reg); + + return 0; +} + +void serial_putc_dev(unsigned int idx, const char c) { volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; if (c == '\n') - serial_putc ('\r'); + serial_putc_dev(idx, '\r'); /* Wait for last character to go. */ while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP)) @@ -128,10 +224,10 @@ void serial_putc (const char c) out_8(&psc->tfdata_8, c); } -void serial_putc_raw (const char c) +void serial_putc_raw_dev(unsigned int idx, const char c) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; /* Wait for last character to go. */ while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP)) @@ -140,18 +236,16 @@ void serial_putc_raw (const char c) out_8(&psc->tfdata_8, c); } - -void serial_puts (const char *s) +void serial_puts_dev(unsigned int idx, const char *s) { - while (*s) { - serial_putc (*s++); - } + while (*s) + serial_putc_dev(idx, *s++); } -int serial_getc (void) +int serial_getc_dev(unsigned int idx) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; /* Wait for a character to arrive. */ while (in_be32(&psc->rfstat) & PSC_FIFO_EMPTY) @@ -160,18 +254,18 @@ int serial_getc (void) return in_8(&psc->rfdata_8); } -int serial_tstc (void) +int serial_tstc_dev(unsigned int idx) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; return !(in_be32(&psc->rfstat) & PSC_FIFO_EMPTY); } -void serial_setrts(int s) +void serial_setrts_dev(unsigned int idx, int s) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; if (s) { /* Assert RTS (become LOW) */ @@ -183,11 +277,127 @@ void serial_setrts(int s) } } -int serial_getcts(void) +int serial_getcts_dev(unsigned int idx) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx]; return (in_8(&psc->ip) & 0x1) ? 0 : 1; } +#endif /* CONFIG_PSC_CONSOLE || CONFIG_SERIAL_MULTI */ + +#if defined(CONFIG_SERIAL_MULTI) + +#define DECLARE_PSC_SERIAL_FUNCTIONS(port) \ + int serial##port##_init(void) \ + { \ + return serial_init_dev(port); \ + } \ + int serial##port##_uninit(void) \ + { \ + return serial_uninit_dev(port); \ + } \ + void serial##port##_setbrg(void) \ + { \ + serial_setbrg_dev(port); \ + } \ + int serial##port##_getc(void) \ + { \ + return serial_getc_dev(port); \ + } \ + int serial##port##_tstc(void) \ + { \ + return serial_tstc_dev(port); \ + } \ + void serial##port##_putc(const char c) \ + { \ + serial_putc_dev(port, c); \ + } \ + void serial##port##_puts(const char *s) \ + { \ + serial_puts_dev(port, s); \ + } + +#define INIT_PSC_SERIAL_STRUCTURE(port, name, bus) { \ + name, \ + bus, \ + serial##port##_init, \ + serial##port##_uninit, \ + serial##port##_setbrg, \ + serial##port##_getc, \ + serial##port##_tstc, \ + serial##port##_putc, \ + serial##port##_puts, \ +} + +#if defined(CONFIG_SYS_PSC1) +DECLARE_PSC_SERIAL_FUNCTIONS(1); +struct serial_device serial1_device = +INIT_PSC_SERIAL_STRUCTURE(1, "psc1", "UART1"); +#endif + +#if defined(CONFIG_SYS_PSC3) +DECLARE_PSC_SERIAL_FUNCTIONS(3); +struct serial_device serial3_device = +INIT_PSC_SERIAL_STRUCTURE(3, "psc3", "UART3"); +#endif + +#if defined(CONFIG_SYS_PSC4) +DECLARE_PSC_SERIAL_FUNCTIONS(4); +struct serial_device serial4_device = +INIT_PSC_SERIAL_STRUCTURE(4, "psc4", "UART4"); +#endif + +#if defined(CONFIG_SYS_PSC6) +DECLARE_PSC_SERIAL_FUNCTIONS(6); +struct serial_device serial6_device = +INIT_PSC_SERIAL_STRUCTURE(6, "psc6", "UART6"); +#endif + +#else + +void serial_setbrg(void) +{ + serial_setbrg_dev(CONFIG_PSC_CONSOLE); +} + +int serial_init(void) +{ + return serial_init_dev(CONFIG_PSC_CONSOLE); +} + +void serial_putc(const char c) +{ + serial_putc_dev(CONFIG_PSC_CONSOLE, c); +} + +void serial_putc_raw(const char c) +{ + serial_putc_raw_dev(CONFIG_PSC_CONSOLE, c); +} + +void serial_puts(const char *s) +{ + serial_puts_dev(CONFIG_PSC_CONSOLE, s); +} + +int serial_getc(void) +{ + return serial_getc_dev(CONFIG_PSC_CONSOLE); +} + +int serial_tstc(void) +{ + return serial_tstc_dev(CONFIG_PSC_CONSOLE); +} + +void serial_setrts(int s) +{ + return serial_setrts_dev(CONFIG_PSC_CONSOLE, s); +} + +int serial_getcts(void) +{ + return serial_getcts_dev(CONFIG_PSC_CONSOLE); +} #endif /* CONFIG_PSC_CONSOLE */ diff --git a/arch/powerpc/include/asm/immap_512x.h b/arch/powerpc/include/asm/immap_512x.h index 95350fd..8bce586 100644 --- a/arch/powerpc/include/asm/immap_512x.h +++ b/arch/powerpc/include/asm/immap_512x.h @@ -1116,66 +1116,68 @@ typedef struct fifoc512x { * * Overall size of FIFOC memory is not documented in the MPC5121e RM, but * tests indicate that it is 1024 words total. + * + * *_TX_SIZE and *_RX_SIZE is the number of 4-byte words for FIFO slice. */ -#define FIFOC_PSC0_TX_SIZE 0x0 /* number of 4-byte words for FIFO slice */ +#define FIFOC_PSC0_TX_SIZE 0x04 #define FIFOC_PSC0_TX_ADDR 0x0 -#define FIFOC_PSC0_RX_SIZE 0x0 -#define FIFOC_PSC0_RX_ADDR 0x0 +#define FIFOC_PSC0_RX_SIZE 0x04 +#define FIFOC_PSC0_RX_ADDR 0x10 -#define FIFOC_PSC1_TX_SIZE 0x0 -#define FIFOC_PSC1_TX_ADDR 0x0 -#define FIFOC_PSC1_RX_SIZE 0x0 -#define FIFOC_PSC1_RX_ADDR 0x0 +#define FIFOC_PSC1_TX_SIZE 0x04 +#define FIFOC_PSC1_TX_ADDR 0x20 +#define FIFOC_PSC1_RX_SIZE 0x04 +#define FIFOC_PSC1_RX_ADDR 0x30 -#define FIFOC_PSC2_TX_SIZE 0x0 -#define FIFOC_PSC2_TX_ADDR 0x0 -#define FIFOC_PSC2_RX_SIZE 0x0 -#define FIFOC_PSC2_RX_ADDR 0x0 +#define FIFOC_PSC2_TX_SIZE 0x04 +#define FIFOC_PSC2_TX_ADDR 0x40 +#define FIFOC_PSC2_RX_SIZE 0x04 +#define FIFOC_PSC2_RX_ADDR 0x50 #define FIFOC_PSC3_TX_SIZE 0x04 -#define FIFOC_PSC3_TX_ADDR 0x0 +#define FIFOC_PSC3_TX_ADDR 0x60 #define FIFOC_PSC3_RX_SIZE 0x04 -#define FIFOC_PSC3_RX_ADDR 0x10 - -#define FIFOC_PSC4_TX_SIZE 0x0 -#define FIFOC_PSC4_TX_ADDR 0x0 -#define FIFOC_PSC4_RX_SIZE 0x0 -#define FIFOC_PSC4_RX_ADDR 0x0 - -#define FIFOC_PSC5_TX_SIZE 0x0 -#define FIFOC_PSC5_TX_ADDR 0x0 -#define FIFOC_PSC5_RX_SIZE 0x0 -#define FIFOC_PSC5_RX_ADDR 0x0 - -#define FIFOC_PSC6_TX_SIZE 0x0 -#define FIFOC_PSC6_TX_ADDR 0x0 -#define FIFOC_PSC6_RX_SIZE 0x0 -#define FIFOC_PSC6_RX_ADDR 0x0 - -#define FIFOC_PSC7_TX_SIZE 0x0 -#define FIFOC_PSC7_TX_ADDR 0x0 -#define FIFOC_PSC7_RX_SIZE 0x0 -#define FIFOC_PSC7_RX_ADDR 0x0 - -#define FIFOC_PSC8_TX_SIZE 0x0 -#define FIFOC_PSC8_TX_ADDR 0x0 -#define FIFOC_PSC8_RX_SIZE 0x0 -#define FIFOC_PSC8_RX_ADDR 0x0 - -#define FIFOC_PSC9_TX_SIZE 0x0 -#define FIFOC_PSC9_TX_ADDR 0x0 -#define FIFOC_PSC9_RX_SIZE 0x0 -#define FIFOC_PSC9_RX_ADDR 0x0 - -#define FIFOC_PSC10_TX_SIZE 0x0 -#define FIFOC_PSC10_TX_ADDR 0x0 -#define FIFOC_PSC10_RX_SIZE 0x0 -#define FIFOC_PSC10_RX_ADDR 0x0 - -#define FIFOC_PSC11_TX_SIZE 0x0 -#define FIFOC_PSC11_TX_ADDR 0x0 -#define FIFOC_PSC11_RX_SIZE 0x0 -#define FIFOC_PSC11_RX_ADDR 0x0 +#define FIFOC_PSC3_RX_ADDR 0x70 + +#define FIFOC_PSC4_TX_SIZE 0x04 +#define FIFOC_PSC4_TX_ADDR 0x80 +#define FIFOC_PSC4_RX_SIZE 0x04 +#define FIFOC_PSC4_RX_ADDR 0x90 + +#define FIFOC_PSC5_TX_SIZE 0x04 +#define FIFOC_PSC5_TX_ADDR 0xa0 +#define FIFOC_PSC5_RX_SIZE 0x04 +#define FIFOC_PSC5_RX_ADDR 0xb0 + +#define FIFOC_PSC6_TX_SIZE 0x04 +#define FIFOC_PSC6_TX_ADDR 0xc0 +#define FIFOC_PSC6_RX_SIZE 0x04 +#define FIFOC_PSC6_RX_ADDR 0xd0 + +#define FIFOC_PSC7_TX_SIZE 0x04 +#define FIFOC_PSC7_TX_ADDR 0xe0 +#define FIFOC_PSC7_RX_SIZE 0x04 +#define FIFOC_PSC7_RX_ADDR 0xf0 + +#define FIFOC_PSC8_TX_SIZE 0x04 +#define FIFOC_PSC8_TX_ADDR 0x100 +#define FIFOC_PSC8_RX_SIZE 0x04 +#define FIFOC_PSC8_RX_ADDR 0x110 + +#define FIFOC_PSC9_TX_SIZE 0x04 +#define FIFOC_PSC9_TX_ADDR 0x120 +#define FIFOC_PSC9_RX_SIZE 0x04 +#define FIFOC_PSC9_RX_ADDR 0x130 + +#define FIFOC_PSC10_TX_SIZE 0x04 +#define FIFOC_PSC10_TX_ADDR 0x140 +#define FIFOC_PSC10_RX_SIZE 0x04 +#define FIFOC_PSC10_RX_ADDR 0x150 + +#define FIFOC_PSC11_TX_SIZE 0x04 +#define FIFOC_PSC11_TX_ADDR 0x160 +#define FIFOC_PSC11_RX_SIZE 0x04 +#define FIFOC_PSC11_RX_ADDR 0x170 /* * SATA -- cgit v1.1 From 8e234e33bf60a850685c7e81ea92d383c643486b Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Sat, 24 Apr 2010 19:27:06 +0200 Subject: mpc5121: add PSC serial communication routines Signed-off-by: Anatolij Gustschin --- arch/powerpc/cpu/mpc512x/serial.c | 87 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc512x/serial.c b/arch/powerpc/cpu/mpc512x/serial.c index f421968..cb5bbf0 100644 --- a/arch/powerpc/cpu/mpc512x/serial.c +++ b/arch/powerpc/cpu/mpc512x/serial.c @@ -401,3 +401,90 @@ int serial_getcts(void) return serial_getcts_dev(CONFIG_PSC_CONSOLE); } #endif /* CONFIG_PSC_CONSOLE */ + +#if defined(CONFIG_SERIAL_MULTI) +#include +/* + * Routines for communication with serial devices over PSC + */ +/* Bitfield for initialized PSCs */ +static unsigned int initialized; + +struct stdio_dev *open_port(int num, int baudrate) +{ + struct stdio_dev *port; + char env_var[16]; + char env_val[10]; + char name[7]; + + if (num < 0 || num > 11) + return NULL; + + sprintf(name, "psc%d", num); + port = stdio_get_by_name(name); + if (!port) + return NULL; + + if (!test_bit(num, &initialized)) { + sprintf(env_var, "psc%d_baudrate", num); + sprintf(env_val, "%d", baudrate); + setenv(env_var, env_val); + + if (port->start()) + return NULL; + + set_bit(num, &initialized); + } + + return port; +} + +int close_port(int num) +{ + struct stdio_dev *port; + int ret; + char name[7]; + + if (num < 0 || num > 11) + return -1; + + sprintf(name, "psc%d", num); + port = stdio_get_by_name(name); + if (!port) + return -1; + + ret = port->stop(); + clear_bit(num, &initialized); + + return ret; +} + +int write_port(struct stdio_dev *port, char *buf) +{ + if (!port || !buf) + return -1; + + port->puts(buf); + + return 0; +} + +int read_port(struct stdio_dev *port, char *buf, int size) +{ + int cnt = 0; + + if (!port || !buf) + return -1; + + if (!size) + return 0; + + while (port->tstc()) { + buf[cnt++] = port->getc(); + if (cnt > size) + break; + } + + return cnt; +} +#endif /* CONFIG_SERIAL_MULTI */ -- cgit v1.1 From 5d937e8b59f27d8c300a2e78c168a4c22ec6922a Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Sat, 24 Apr 2010 19:27:07 +0200 Subject: mpc512x: make MEM IO Control configuration a board config option Signed-off-by: Anatolij Gustschin --- arch/powerpc/cpu/mpc512x/fixed_sdram.c | 2 +- arch/powerpc/include/asm/immap_512x.h | 4 ---- 2 files changed, 1 insertion(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc512x/fixed_sdram.c b/arch/powerpc/cpu/mpc512x/fixed_sdram.c index 442b5fc..72d524c 100644 --- a/arch/powerpc/cpu/mpc512x/fixed_sdram.c +++ b/arch/powerpc/cpu/mpc512x/fixed_sdram.c @@ -91,7 +91,7 @@ long int fixed_sdram(ddr512x_config_t *mddrc_config, } /* Initialize IO Control */ - out_be32(&im->io_ctrl.io_control_mem, IOCTRL_MUX_DDR); + out_be32(&im->io_ctrl.io_control_mem, CONFIG_SYS_IOCTRL_MUX_DDR); /* Initialize DDR Local Window */ out_be32(&im->sysconf.ddrlaw.bar, CONFIG_SYS_DDR_BASE & 0xFFFFF000); diff --git a/arch/powerpc/include/asm/immap_512x.h b/arch/powerpc/include/asm/immap_512x.h index 8bce586..c430cb6 100644 --- a/arch/powerpc/include/asm/immap_512x.h +++ b/arch/powerpc/include/asm/immap_512x.h @@ -848,10 +848,6 @@ typedef struct ioctrl512x { u8 reserved[0x0cfc]; /* fill to 4096 bytes size */ } ioctrl512x_t; -/* Indexes in regs array */ -/* Set for DDR */ -#define IOCTRL_MUX_DDR 0x00000036 - /* IO pin fields */ #define IO_PIN_FMUX(v) ((v) << 7) /* pin function */ #define IO_PIN_HOLD(v) ((v) << 5) /* hold time, pci only */ -- cgit v1.1 From b9947bbb08d0483be03004bdbce283b644471cb7 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Sat, 24 Apr 2010 19:27:08 +0200 Subject: mpc5121: determine RAM size using get_ram_size() Configure CONFIG_SYS_MAX_RAM_SIZE address range in DDR Local Access Window and determine the RAM size. Fix DDR LAW afterwards using detected RAM size. Signed-off-by: Anatolij Gustschin --- arch/powerpc/cpu/mpc512x/fixed_sdram.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc512x/fixed_sdram.c b/arch/powerpc/cpu/mpc512x/fixed_sdram.c index 72d524c..550cbd0 100644 --- a/arch/powerpc/cpu/mpc512x/fixed_sdram.c +++ b/arch/powerpc/cpu/mpc512x/fixed_sdram.c @@ -78,7 +78,7 @@ long int fixed_sdram(ddr512x_config_t *mddrc_config, u32 *dram_init_seq, int seq_sz) { volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024; + u32 msize = CONFIG_SYS_MAX_RAM_SIZE; u32 msize_log2 = __ilog2(msize); u32 i; @@ -148,5 +148,10 @@ long int fixed_sdram(ddr512x_config_t *mddrc_config, out_be32(&im->mddrc.ddr_time_config0, mddrc_config->ddr_time_config0); out_be32(&im->mddrc.ddr_sys_config, mddrc_config->ddr_sys_config); + msize = get_ram_size(CONFIG_SYS_DDR_BASE, CONFIG_SYS_MAX_RAM_SIZE); + /* Fix DDR Local Window for new size */ + out_be32(&im->sysconf.ddrlaw.ar, __ilog2(msize) - 1); + sync_law(&im->sysconf.ddrlaw.ar); + return msize; } -- cgit v1.1 From a3921eefa1440d23f22751704cd7df999769f169 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Sat, 24 Apr 2010 19:27:09 +0200 Subject: mpc5121: add support for PDM360NG board PDM360NG is a MPC5121E based board by ifm ecomatic gmbh. Signed-off-by: Michael Weiss Signed-off-by: Detlev Zundel Signed-off-by: Anatolij Gustschin --- arch/powerpc/cpu/mpc512x/diu.c | 12 ++++++++++-- arch/powerpc/include/asm/immap_512x.h | 5 +++++ 2 files changed, 15 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc512x/diu.c b/arch/powerpc/cpu/mpc512x/diu.c index 9361161..f8d19a0 100644 --- a/arch/powerpc/cpu/mpc512x/diu.c +++ b/arch/powerpc/cpu/mpc512x/diu.c @@ -34,6 +34,8 @@ #include #endif +DECLARE_GLOBAL_DATA_PTR; + #ifdef CONFIG_FSL_DIU_LOGO_BMP extern unsigned int FSL_Logo_BMP[]; #else @@ -65,10 +67,11 @@ void diu_set_pixel_clock(unsigned int pixclock) char *valid_bmp(char *addr) { unsigned long h_addr; + bd_t *bd = gd->bd; h_addr = simple_strtoul(addr, NULL, 16); - if (h_addr < CONFIG_SYS_FLASH_BASE || - h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) { + if (h_addr < bd->bi_flashstart || + h_addr >= (bd->bi_flashstart + bd->bi_flashsize - 1)) { printf("bmp addr %lx is not a valid flash address\n", h_addr); return 0; } else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) { @@ -84,8 +87,13 @@ int mpc5121_diu_init(void) char *bmp = NULL; char *bmp_env; +#if defined(CONFIG_VIDEO_XRES) & defined(CONFIG_VIDEO_YRES) + xres = CONFIG_VIDEO_XRES; + yres = CONFIG_VIDEO_YRES; +#else xres = 1024; yres = 768; +#endif pixel_format = 0x88883316; debug("mpc5121_diu_init\n"); diff --git a/arch/powerpc/include/asm/immap_512x.h b/arch/powerpc/include/asm/immap_512x.h index c430cb6..7f9db8b 100644 --- a/arch/powerpc/include/asm/immap_512x.h +++ b/arch/powerpc/include/asm/immap_512x.h @@ -356,6 +356,11 @@ typedef struct ddr512x_config { u32 ddr_time_config2; /* Timing Configuration Register */ } ddr512x_config_t; +typedef struct sdram_conf_s { + unsigned long size; + ddr512x_config_t cfg; +} sdram_conf_t; + /* * DMA/Messaging Unit */ -- cgit v1.1 From 2ebdb9a9d7abcb17fdbfdc4bbb71b4ef538fc713 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Sat, 24 Apr 2010 19:27:10 +0200 Subject: mpc5121: add common post_word_load/store code Add common post_word_load/post_word_store routines for all mpc5121 boards. pdm360ng board POST support added by subsequent patch needs them. Signed-off-by: Anatolij Gustschin --- arch/powerpc/cpu/mpc512x/Makefile | 1 + arch/powerpc/cpu/mpc512x/common.c | 25 +++++++++++++++++++++++++ 2 files changed, 26 insertions(+) create mode 100644 arch/powerpc/cpu/mpc512x/common.c (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc512x/Makefile b/arch/powerpc/cpu/mpc512x/Makefile index 1719c66..9cfdb0f 100644 --- a/arch/powerpc/cpu/mpc512x/Makefile +++ b/arch/powerpc/cpu/mpc512x/Makefile @@ -29,6 +29,7 @@ LIB = $(obj)lib$(CPU).a START = start.o COBJS-y := cpu.o COBJS-y += traps.o +COBJS-y += common.o COBJS-y += cpu_init.o COBJS-y += fixed_sdram.o COBJS-y += i2c.o diff --git a/arch/powerpc/cpu/mpc512x/common.c b/arch/powerpc/cpu/mpc512x/common.c new file mode 100644 index 0000000..180d323 --- /dev/null +++ b/arch/powerpc/cpu/mpc512x/common.c @@ -0,0 +1,25 @@ +#include +#include + +#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) + +#if defined(CONFIG_SYS_POST_WORD_ADDR) +# define _POST_ADDR (CONFIG_SYS_POST_WORD_ADDR) +#else +#error echo "No POST word address defined" +#endif + +void post_word_store(ulong a) +{ + volatile void *save_addr = (volatile void *)(_POST_ADDR); + + out_be32(save_addr, a); +} + +ulong post_word_load(void) +{ + volatile void *save_addr = (volatile void *)(_POST_ADDR); + + return in_be32(save_addr); +} +#endif /* CONFIG_POST || CONFIG_LOGBUFFER */ -- cgit v1.1