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authorHeiko Schocher <hs@denx.de>2017-06-07 17:33:10 +0200
committerTom Rini <trini@konsulko.com>2017-06-12 08:38:02 -0400
commit2eb48ff7a210ddd2a39bac23b3b9b39c60c32aef (patch)
treed948cc6059525960b72e912f533df2cb140cf5f0 /arch/powerpc/cpu/mpc8260/serial_smc.c
parent5b8e76c35ec312a3f73126bd1a2d2c0965b98a9f (diff)
powerpc, 8260: remove support for mpc8260
There was for long time no activity in the 8260 area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 8260, so remove it. Signed-off-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'arch/powerpc/cpu/mpc8260/serial_smc.c')
-rw-r--r--arch/powerpc/cpu/mpc8260/serial_smc.c461
1 files changed, 0 insertions, 461 deletions
diff --git a/arch/powerpc/cpu/mpc8260/serial_smc.c b/arch/powerpc/cpu/mpc8260/serial_smc.c
deleted file mode 100644
index 594c5ebf1a..0000000000
--- a/arch/powerpc/cpu/mpc8260/serial_smc.c
+++ /dev/null
@@ -1,461 +0,0 @@
-/*
- * (C) Copyright 2000, 2001, 2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- *
- * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00, with
- * changes based on the file arch/powerpc/mbxboot/m8260_tty.c from the
- * Linux/PPC sources (m8260_tty.c had no copyright info in it).
- */
-
-/*
- * Minimal serial functions needed to use one of the SMC ports
- * as serial console interface.
- */
-
-#include <common.h>
-#include <mpc8260.h>
-#include <asm/cpm_8260.h>
-#include <serial.h>
-#include <linux/compiler.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#if defined(CONFIG_CONS_ON_SMC)
-
-#if CONFIG_CONS_INDEX == 1 /* Console on SMC1 */
-
-#define SMC_INDEX 0
-#define PROFF_SMC_BASE PROFF_SMC1_BASE
-#define PROFF_SMC PROFF_SMC1
-#define CPM_CR_SMC_PAGE CPM_CR_SMC1_PAGE
-#define CPM_CR_SMC_SBLOCK CPM_CR_SMC1_SBLOCK
-#define CMXSMR_MASK (CMXSMR_SMC1|CMXSMR_SMC1CS_MSK)
-#define CMXSMR_VALUE CMXSMR_SMC1CS_BRG7
-
-#elif CONFIG_CONS_INDEX == 2 /* Console on SMC2 */
-
-#define SMC_INDEX 1
-#define PROFF_SMC_BASE PROFF_SMC2_BASE
-#define PROFF_SMC PROFF_SMC2
-#define CPM_CR_SMC_PAGE CPM_CR_SMC2_PAGE
-#define CPM_CR_SMC_SBLOCK CPM_CR_SMC2_SBLOCK
-#define CMXSMR_MASK (CMXSMR_SMC2|CMXSMR_SMC2CS_MSK)
-#define CMXSMR_VALUE CMXSMR_SMC2CS_BRG8
-
-#else
-
-#error "console not correctly defined"
-
-#endif
-
-#if !defined(CONFIG_SYS_SMC_RXBUFLEN)
-#define CONFIG_SYS_SMC_RXBUFLEN 1
-#define CONFIG_SYS_MAXIDLE 0
-#else
-#if !defined(CONFIG_SYS_MAXIDLE)
-#error "you must define CONFIG_SYS_MAXIDLE"
-#endif
-#endif
-
-typedef volatile struct serialbuffer {
- cbd_t rxbd; /* Rx BD */
- cbd_t txbd; /* Tx BD */
- uint rxindex; /* index for next character to read */
- volatile uchar rxbuf[CONFIG_SYS_SMC_RXBUFLEN];/* rx buffers */
- volatile uchar txbuf; /* tx buffers */
-} serialbuffer_t;
-
-/* map rs_table index to baud rate generator index */
-static unsigned char brg_map[] = {
- 6, /* BRG7 for SMC1 */
- 7, /* BRG8 for SMC2 */
- 0, /* BRG1 for SCC1 */
- 1, /* BRG1 for SCC2 */
- 2, /* BRG1 for SCC3 */
- 3, /* BRG1 for SCC4 */
-};
-
-static int mpc8260_smc_serial_init(void)
-{
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
- volatile smc_t *sp;
- volatile smc_uart_t *up;
- volatile cpm8260_t *cp = &(im->im_cpm);
- uint dpaddr;
- volatile serialbuffer_t *rtx;
-
- /* initialize pointers to SMC */
-
- sp = (smc_t *) &(im->im_smc[SMC_INDEX]);
- im->im_dprambase16[PROFF_SMC_BASE / sizeof(u16)] = PROFF_SMC;
- up = (smc_uart_t *)&im->im_dprambase[PROFF_SMC];
-
- /* Disable transmitter/receiver. */
- sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-
- /* NOTE: I/O port pins are set up via the iop_conf_tab[] table */
-
- /* Allocate space for two buffer descriptors in the DP ram.
- * damm: allocating space after the two buffers for rx/tx data
- */
-
- /* allocate size of struct serialbuffer with bd rx/tx,
- * buffer rx/tx and rx index
- */
- dpaddr = m8260_cpm_dpalloc((sizeof(serialbuffer_t)), 16);
-
- rtx = (serialbuffer_t *)&im->im_dprambase[dpaddr];
-
- /* Set the physical address of the host memory buffers in
- * the buffer descriptors.
- */
- rtx->rxbd.cbd_bufaddr = (uint) &rtx->rxbuf;
- rtx->rxbd.cbd_sc = 0;
-
- rtx->txbd.cbd_bufaddr = (uint) &rtx->txbuf;
- rtx->txbd.cbd_sc = 0;
-
- /* Set up the uart parameters in the parameter ram. */
- up->smc_rbase = dpaddr;
- up->smc_tbase = dpaddr+sizeof(cbd_t);
- up->smc_rfcr = CPMFCR_EB;
- up->smc_tfcr = CPMFCR_EB;
- up->smc_brklen = 0;
- up->smc_brkec = 0;
- up->smc_brkcr = 0;
-
- /* Set UART mode, 8 bit, no parity, one stop.
- * Enable receive and transmit.
- */
- sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART;
-
- /* Mask all interrupts and remove anything pending. */
- sp->smc_smcm = 0;
- sp->smc_smce = 0xff;
-
- /* put the SMC channel into NMSI (non multiplexd serial interface)
- * mode and wire either BRG7 to SMC1 or BRG8 to SMC2 (15-17).
- */
- im->im_cpmux.cmx_smr = (im->im_cpmux.cmx_smr&~CMXSMR_MASK)|CMXSMR_VALUE;
-
- /* Set up the baud rate generator. */
- serial_setbrg ();
-
- /* Make the first buffer the only buffer. */
- rtx->txbd.cbd_sc |= BD_SC_WRAP;
- rtx->rxbd.cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP;
-
- /* single/multi character receive. */
- up->smc_mrblr = CONFIG_SYS_SMC_RXBUFLEN;
- up->smc_maxidl = CONFIG_SYS_MAXIDLE;
- rtx->rxindex = 0;
-
- /* Initialize Tx/Rx parameters. */
-
- while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */
- ;
-
- cp->cp_cpcr = mk_cr_cmd(CPM_CR_SMC_PAGE, CPM_CR_SMC_SBLOCK,
- 0, CPM_CR_INIT_TRX) | CPM_CR_FLG;
-
- while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */
- ;
-
- /* Enable transmitter/receiver. */
- sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN;
-
- return (0);
-}
-
-static void mpc8260_smc_serial_setbrg(void)
-{
-#if defined(CONFIG_CONS_USE_EXTC)
- m8260_cpm_extcbrg(brg_map[SMC_INDEX], gd->baudrate,
- CONFIG_CONS_EXTC_RATE, CONFIG_CONS_EXTC_PINSEL);
-#else
- m8260_cpm_setbrg(brg_map[SMC_INDEX], gd->baudrate);
-#endif
-}
-
-static void mpc8260_smc_serial_putc(const char c)
-{
- volatile smc_uart_t *up;
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
- volatile serialbuffer_t *rtx;
-
- if (c == '\n')
- serial_putc ('\r');
-
- up = (smc_uart_t *)&(im->im_dprambase[PROFF_SMC]);
-
- rtx = (serialbuffer_t *)&im->im_dprambase[up->smc_rbase];
-
- /* Wait for last character to go. */
- while (rtx->txbd.cbd_sc & BD_SC_READY & BD_SC_READY)
- ;
- rtx->txbuf = c;
- rtx->txbd.cbd_datlen = 1;
- rtx->txbd.cbd_sc |= BD_SC_READY;
-}
-
-static int mpc8260_smc_serial_getc(void)
-{
- volatile smc_uart_t *up;
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
- volatile serialbuffer_t *rtx;
- unsigned char c;
-
- up = (smc_uart_t *)&(im->im_dprambase[PROFF_SMC]);
-
- rtx = (serialbuffer_t *)&im->im_dprambase[up->smc_rbase];
-
- /* Wait for character to show up. */
- while (rtx->rxbd.cbd_sc & BD_SC_EMPTY)
- ;
-
- /* the characters are read one by one,
- * use the rxindex to know the next char to deliver
- */
- c = *(unsigned char *) (rtx->rxbd.cbd_bufaddr + rtx->rxindex);
- rtx->rxindex++;
-
- /* check if all char are readout, then make prepare for next receive */
- if (rtx->rxindex >= rtx->rxbd.cbd_datlen) {
- rtx->rxindex = 0;
- rtx->rxbd.cbd_sc |= BD_SC_EMPTY;
- }
- return(c);
-}
-
-static int mpc8260_smc_serial_tstc(void)
-{
- volatile smc_uart_t *up;
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
- volatile serialbuffer_t *rtx;
-
- up = (smc_uart_t *)&(im->im_dprambase[PROFF_SMC]);
- rtx = (serialbuffer_t *)&im->im_dprambase[up->smc_rbase];
-
- return !(rtx->rxbd.cbd_sc & BD_SC_EMPTY);
-}
-
-static struct serial_device mpc8260_smc_serial_drv = {
- .name = "mpc8260_smc_uart",
- .start = mpc8260_smc_serial_init,
- .stop = NULL,
- .setbrg = mpc8260_smc_serial_setbrg,
- .putc = mpc8260_smc_serial_putc,
- .puts = default_serial_puts,
- .getc = mpc8260_smc_serial_getc,
- .tstc = mpc8260_smc_serial_tstc,
-};
-
-void mpc8260_smc_serial_initialize(void)
-{
- serial_register(&mpc8260_smc_serial_drv);
-}
-
-__weak struct serial_device *default_serial_console(void)
-{
- return &mpc8260_smc_serial_drv;
-}
-#endif /* CONFIG_CONS_ON_SMC */
-
-#if defined(CONFIG_KGDB_ON_SMC)
-
-#if defined(CONFIG_CONS_ON_SMC) && CONFIG_KGDB_INDEX == CONFIG_CONS_INDEX
-#error Whoops! serial console and kgdb are on the same smc serial port
-#endif
-
-#if CONFIG_KGDB_INDEX == 1 /* KGDB Port on SMC1 */
-
-#define KGDB_SMC_INDEX 0
-#define KGDB_PROFF_SMC_BASE PROFF_SMC1_BASE
-#define KGDB_PROFF_SMC PROFF_SMC1
-#define KGDB_CPM_CR_SMC_PAGE CPM_CR_SMC1_PAGE
-#define KGDB_CPM_CR_SMC_SBLOCK CPM_CR_SMC1_SBLOCK
-#define KGDB_CMXSMR_MASK (CMXSMR_SMC1|CMXSMR_SMC1CS_MSK)
-#define KGDB_CMXSMR_VALUE CMXSMR_SMC1CS_BRG7
-
-#elif CONFIG_KGDB_INDEX == 2 /* KGDB Port on SMC2 */
-
-#define KGDB_SMC_INDEX 1
-#define KGDB_PROFF_SMC_BASE PROFF_SMC2_BASE
-#define KGDB_PROFF_SMC PROFF_SMC2
-#define KGDB_CPM_CR_SMC_PAGE CPM_CR_SMC2_PAGE
-#define KGDB_CPM_CR_SMC_SBLOCK CPM_CR_SMC2_SBLOCK
-#define KGDB_CMXSMR_MASK (CMXSMR_SMC2|CMXSMR_SMC2CS_MSK)
-#define KGDB_CMXSMR_VALUE CMXSMR_SMC2CS_BRG8
-
-#else
-
-#error "console not correctly defined"
-
-#endif
-
-void
-kgdb_serial_init (void)
-{
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
- volatile smc_t *sp;
- volatile smc_uart_t *up;
- volatile cbd_t *tbdf, *rbdf;
- volatile cpm8260_t *cp = &(im->im_cpm);
- uint dpaddr, speed = CONFIG_KGDB_BAUDRATE;
- char *s, *e;
-
- if ((s = getenv("kgdbrate")) != NULL && *s != '\0') {
- ulong rate = simple_strtoul(s, &e, 10);
- if (e > s && *e == '\0')
- speed = rate;
- }
-
- /* initialize pointers to SMC */
-
- sp = (smc_t *) &(im->im_smc[KGDB_SMC_INDEX]);
- im->im_dprambase16[KGDB_PROFF_SMC_BASE / sizeof(u16)] = KGDB_PROFF_SMC;
- up = (smc_uart_t *)&im->im_dprambase[KGDB_PROFF_SMC];
-
- /* Disable transmitter/receiver. */
- sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-
- /* NOTE: I/O port pins are set up via the iop_conf_tab[] table */
-
- /* Allocate space for two buffer descriptors in the DP ram.
- * damm: allocating space after the two buffers for rx/tx data
- */
-
- dpaddr = m8260_cpm_dpalloc((2 * sizeof (cbd_t)) + 2, 16);
-
- /* Set the physical address of the host memory buffers in
- * the buffer descriptors.
- */
- rbdf = (cbd_t *)&im->im_dprambase[dpaddr];
- rbdf->cbd_bufaddr = (uint) (rbdf+2);
- rbdf->cbd_sc = 0;
- tbdf = rbdf + 1;
- tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1;
- tbdf->cbd_sc = 0;
-
- /* Set up the uart parameters in the parameter ram. */
- up->smc_rbase = dpaddr;
- up->smc_tbase = dpaddr+sizeof(cbd_t);
- up->smc_rfcr = CPMFCR_EB;
- up->smc_tfcr = CPMFCR_EB;
- up->smc_brklen = 0;
- up->smc_brkec = 0;
- up->smc_brkcr = 0;
-
- /* Set UART mode, 8 bit, no parity, one stop.
- * Enable receive and transmit.
- */
- sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART;
-
- /* Mask all interrupts and remove anything pending. */
- sp->smc_smcm = 0;
- sp->smc_smce = 0xff;
-
- /* put the SMC channel into NMSI (non multiplexd serial interface)
- * mode and wire either BRG7 to SMC1 or BRG8 to SMC2 (15-17).
- */
- im->im_cpmux.cmx_smr =
- (im->im_cpmux.cmx_smr & ~KGDB_CMXSMR_MASK) | KGDB_CMXSMR_VALUE;
-
- /* Set up the baud rate generator. */
-#if defined(CONFIG_KGDB_USE_EXTC)
- m8260_cpm_extcbrg(brg_map[KGDB_SMC_INDEX], speed,
- CONFIG_KGDB_EXTC_RATE, CONFIG_KGDB_EXTC_PINSEL);
-#else
- m8260_cpm_setbrg(brg_map[KGDB_SMC_INDEX], speed);
-#endif
-
- /* Make the first buffer the only buffer. */
- tbdf->cbd_sc |= BD_SC_WRAP;
- rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP;
-
- /* Single character receive. */
- up->smc_mrblr = 1;
- up->smc_maxidl = 0;
-
- /* Initialize Tx/Rx parameters. */
-
- while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */
- ;
-
- cp->cp_cpcr = mk_cr_cmd(KGDB_CPM_CR_SMC_PAGE, KGDB_CPM_CR_SMC_SBLOCK,
- 0, CPM_CR_INIT_TRX) | CPM_CR_FLG;
-
- while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */
- ;
-
- /* Enable transmitter/receiver. */
- sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN;
-
- printf("SMC%d at %dbps ", CONFIG_KGDB_INDEX, speed);
-}
-
-void
-putDebugChar(const char c)
-{
- volatile cbd_t *tbdf;
- volatile char *buf;
- volatile smc_uart_t *up;
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
-
- if (c == '\n')
- putDebugChar ('\r');
-
- up = (smc_uart_t *)&(im->im_dprambase[KGDB_PROFF_SMC]);
-
- tbdf = (cbd_t *)&im->im_dprambase[up->smc_tbase];
-
- /* Wait for last character to go. */
- buf = (char *)tbdf->cbd_bufaddr;
- while (tbdf->cbd_sc & BD_SC_READY)
- ;
-
- *buf = c;
- tbdf->cbd_datlen = 1;
- tbdf->cbd_sc |= BD_SC_READY;
-}
-
-void
-putDebugStr (const char *s)
-{
- while (*s) {
- putDebugChar (*s++);
- }
-}
-
-int
-getDebugChar(void)
-{
- volatile cbd_t *rbdf;
- volatile unsigned char *buf;
- volatile smc_uart_t *up;
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
- unsigned char c;
-
- up = (smc_uart_t *)&(im->im_dprambase[KGDB_PROFF_SMC]);
-
- rbdf = (cbd_t *)&im->im_dprambase[up->smc_rbase];
-
- /* Wait for character to show up. */
- buf = (unsigned char *)rbdf->cbd_bufaddr;
- while (rbdf->cbd_sc & BD_SC_EMPTY)
- ;
- c = *buf;
- rbdf->cbd_sc |= BD_SC_EMPTY;
-
- return(c);
-}
-
-void
-kgdb_interruptible(int yes)
-{
- return;
-}
-
-#endif /* CONFIG_KGDB_ON_SMC */