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authorHeiko Schocher <hs@denx.de>2017-06-07 15:33:09 (GMT)
committerTom Rini <trini@konsulko.com>2017-06-12 12:37:55 (GMT)
commit5b8e76c35ec312a3f73126bd1a2d2c0965b98a9f (patch)
tree58d5c3c3b0baaeb369f8e426f64621b0f9ad9e4b /post/cpu/mpc8xx/uart.c
parent4a30a93929c112af94b8e00db1382432a69d0809 (diff)
downloadu-boot-5b8e76c35ec312a3f73126bd1a2d2c0965b98a9f.tar.xz
powerpc, 8xx: remove support for 8xx
There was for long time no activity in the 8xx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 8xx, so remove it (with a heavy heart, knowing that I remove here the root of U-Boot). Signed-off-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'post/cpu/mpc8xx/uart.c')
-rw-r--r--post/cpu/mpc8xx/uart.c510
1 files changed, 0 insertions, 510 deletions
diff --git a/post/cpu/mpc8xx/uart.c b/post/cpu/mpc8xx/uart.c
deleted file mode 100644
index 64ca7e4..0000000
--- a/post/cpu/mpc8xx/uart.c
+++ /dev/null
@@ -1,510 +0,0 @@
-/*
- * (C) Copyright 2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-
-/*
- * UART test
- *
- * The Serial Management Controllers (SMC) and the Serial Communication
- * Controllers (SCC) listed in ctlr_list array below are tested in
- * the loopback UART mode.
- * The controllers are configured accordingly and several characters
- * are transmitted. The configurable test parameters are:
- * MIN_PACKET_LENGTH - minimum size of packet to transmit
- * MAX_PACKET_LENGTH - maximum size of packet to transmit
- * TEST_NUM - number of tests
- */
-
-#include <post.h>
-#if CONFIG_POST & CONFIG_SYS_POST_UART
-#if defined(CONFIG_8xx)
-#include <commproc.h>
-#elif defined(CONFIG_MPC8260)
-#include <asm/cpm_8260.h>
-#else
-#error "Apparently a bad configuration, please fix."
-#endif
-#include <command.h>
-#include <serial.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define CTLR_SMC 0
-#define CTLR_SCC 1
-
-/* The list of controllers to test */
-#if defined(CONFIG_MPC823)
-static int ctlr_list[][2] =
- { {CTLR_SMC, 0}, {CTLR_SMC, 1}, {CTLR_SCC, 1} };
-#else
-static int ctlr_list[][2] = { };
-#endif
-
-static struct {
- void (*init) (int index);
- void (*halt) (int index);
- void (*putc) (int index, const char c);
- int (*getc) (int index);
-} ctlr_proc[2];
-
-static char *ctlr_name[2] = { "SMC", "SCC" };
-
-static int proff_smc[] = { PROFF_SMC1, PROFF_SMC2 };
-static int proff_scc[] =
- { PROFF_SCC1, PROFF_SCC2, PROFF_SCC3, PROFF_SCC4 };
-
-/*
- * SMC callbacks
- */
-
-static void smc_init (int smc_index)
-{
- static int cpm_cr_ch[] = { CPM_CR_CH_SMC1, CPM_CR_CH_SMC2 };
-
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
- volatile smc_t *sp;
- volatile smc_uart_t *up;
- volatile cbd_t *tbdf, *rbdf;
- volatile cpm8xx_t *cp = &(im->im_cpm);
- uint dpaddr;
-
- /* initialize pointers to SMC */
-
- sp = (smc_t *) & (cp->cp_smc[smc_index]);
- up = (smc_uart_t *) & cp->cp_dparam[proff_smc[smc_index]];
-
- /* Disable transmitter/receiver.
- */
- sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-
- /* Enable SDMA.
- */
- im->im_siu_conf.sc_sdcr = 1;
-
- /* clear error conditions */
-#ifdef CONFIG_SYS_SDSR
- im->im_sdma.sdma_sdsr = CONFIG_SYS_SDSR;
-#else
- im->im_sdma.sdma_sdsr = 0x83;
-#endif
-
- /* clear SDMA interrupt mask */
-#ifdef CONFIG_SYS_SDMR
- im->im_sdma.sdma_sdmr = CONFIG_SYS_SDMR;
-#else
- im->im_sdma.sdma_sdmr = 0x00;
-#endif
-
- /* Set the physical address of the host memory buffers in
- * the buffer descriptors.
- */
- dpaddr = CPM_POST_BASE;
-
- /* Allocate space for two buffer descriptors in the DP ram.
- * For now, this address seems OK, but it may have to
- * change with newer versions of the firmware.
- * damm: allocating space after the two buffers for rx/tx data
- */
-
- rbdf = (cbd_t *) & cp->cp_dpmem[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 = SMC_EB;
- up->smc_tfcr = SMC_EB;
-
- /* Set UART mode, 8 bit, no parity, one stop.
- * Enable receive and transmit.
- * Set local loopback mode.
- */
- sp->smc_smcmr = smcr_mk_clen (9) | SMCMR_SM_UART | (ushort) 0x0004;
-
- /* Mask all interrupts and remove anything pending.
- */
- sp->smc_smcm = 0;
- sp->smc_smce = 0xff;
-
- /* Set up the baud rate generator.
- */
- cp->cp_simode = 0x00000000;
-
- cp->cp_brgc1 =
- (((gd->cpu_clk / 16 / gd->baudrate) -
- 1) << 1) | CPM_BRG_EN;
-
- /* 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 (cpm_cr_ch[smc_index], 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;
-}
-
-static void smc_halt(int smc_index)
-{
-}
-
-static void smc_putc (int smc_index, const char c)
-{
- volatile cbd_t *tbdf;
- volatile char *buf;
- volatile smc_uart_t *up;
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
- volatile cpm8xx_t *cpmp = &(im->im_cpm);
-
- up = (smc_uart_t *) & cpmp->cp_dparam[proff_smc[smc_index]];
-
- tbdf = (cbd_t *) & cpmp->cp_dpmem[up->smc_tbase];
-
- /* Wait for last character to go.
- */
-
- buf = (char *) tbdf->cbd_bufaddr;
-#if 0
- __asm__ ("eieio");
- while (tbdf->cbd_sc & BD_SC_READY)
- __asm__ ("eieio");
-#endif
-
- *buf = c;
- tbdf->cbd_datlen = 1;
- tbdf->cbd_sc |= BD_SC_READY;
- __asm__ ("eieio");
-#if 1
- while (tbdf->cbd_sc & BD_SC_READY)
- __asm__ ("eieio");
-#endif
-}
-
-static int smc_getc (int smc_index)
-{
- volatile cbd_t *rbdf;
- volatile unsigned char *buf;
- volatile smc_uart_t *up;
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
- volatile cpm8xx_t *cpmp = &(im->im_cpm);
- unsigned char c;
- int i;
-
- up = (smc_uart_t *) & cpmp->cp_dparam[proff_smc[smc_index]];
-
- rbdf = (cbd_t *) & cpmp->cp_dpmem[up->smc_rbase];
-
- /* Wait for character to show up.
- */
- buf = (unsigned char *) rbdf->cbd_bufaddr;
-#if 0
- while (rbdf->cbd_sc & BD_SC_EMPTY);
-#else
- for (i = 100; i > 0; i--) {
- if (!(rbdf->cbd_sc & BD_SC_EMPTY))
- break;
- udelay (1000);
- }
-
- if (i == 0)
- return -1;
-#endif
- c = *buf;
- rbdf->cbd_sc |= BD_SC_EMPTY;
-
- return (c);
-}
-
- /*
- * SCC callbacks
- */
-
-static void scc_init (int scc_index)
-{
- static int cpm_cr_ch[] = {
- CPM_CR_CH_SCC1,
- CPM_CR_CH_SCC2,
- CPM_CR_CH_SCC3,
- CPM_CR_CH_SCC4,
- };
-
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
- volatile scc_t *sp;
- volatile scc_uart_t *up;
- volatile cbd_t *tbdf, *rbdf;
- volatile cpm8xx_t *cp = &(im->im_cpm);
- uint dpaddr;
-
- /* initialize pointers to SCC */
-
- sp = (scc_t *) & (cp->cp_scc[scc_index]);
- up = (scc_uart_t *) & cp->cp_dparam[proff_scc[scc_index]];
-
- /* Disable transmitter/receiver.
- */
- sp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-
- dpaddr = CPM_POST_BASE;
-
- /* Enable SDMA.
- */
- im->im_siu_conf.sc_sdcr = 0x0001;
-
- /* Set the physical address of the host memory buffers in
- * the buffer descriptors.
- */
-
- rbdf = (cbd_t *) & cp->cp_dpmem[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 baud rate generator.
- */
- cp->cp_sicr &= ~(0x000000FF << (8 * scc_index));
- /* no |= needed, since BRG1 is 000 */
-
- cp->cp_brgc1 =
- (((gd->cpu_clk / 16 / gd->baudrate) -
- 1) << 1) | CPM_BRG_EN;
-
- /* Set up the uart parameters in the parameter ram.
- */
- up->scc_genscc.scc_rbase = dpaddr;
- up->scc_genscc.scc_tbase = dpaddr + sizeof (cbd_t);
-
- /* Initialize Tx/Rx parameters.
- */
- while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */
- ;
- cp->cp_cpcr =
- mk_cr_cmd (cpm_cr_ch[scc_index], CPM_CR_INIT_TRX) | CPM_CR_FLG;
-
- while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */
- ;
-
- up->scc_genscc.scc_rfcr = SCC_EB | 0x05;
- up->scc_genscc.scc_tfcr = SCC_EB | 0x05;
-
- up->scc_genscc.scc_mrblr = 1; /* Single character receive */
- up->scc_maxidl = 0; /* disable max idle */
- up->scc_brkcr = 1; /* send one break character on stop TX */
- up->scc_parec = 0;
- up->scc_frmec = 0;
- up->scc_nosec = 0;
- up->scc_brkec = 0;
- up->scc_uaddr1 = 0;
- up->scc_uaddr2 = 0;
- up->scc_toseq = 0;
- up->scc_char1 = 0x8000;
- up->scc_char2 = 0x8000;
- up->scc_char3 = 0x8000;
- up->scc_char4 = 0x8000;
- up->scc_char5 = 0x8000;
- up->scc_char6 = 0x8000;
- up->scc_char7 = 0x8000;
- up->scc_char8 = 0x8000;
- up->scc_rccm = 0xc0ff;
-
- /* Set low latency / small fifo.
- */
- sp->scc_gsmrh = SCC_GSMRH_RFW;
-
- /* Set UART mode
- */
- sp->scc_gsmrl &= ~0xF;
- sp->scc_gsmrl |= SCC_GSMRL_MODE_UART;
-
- /* Set local loopback mode.
- */
- sp->scc_gsmrl &= ~SCC_GSMRL_DIAG_LE;
- sp->scc_gsmrl |= SCC_GSMRL_DIAG_LOOP;
-
- /* Set clock divider 16 on Tx and Rx
- */
- sp->scc_gsmrl |= (SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16);
-
- sp->scc_psmr |= SCU_PSMR_CL;
-
- /* Mask all interrupts and remove anything pending.
- */
- sp->scc_sccm = 0;
- sp->scc_scce = 0xffff;
- sp->scc_dsr = 0x7e7e;
- sp->scc_psmr = 0x3000;
-
- /* Make the first buffer the only buffer.
- */
- tbdf->cbd_sc |= BD_SC_WRAP;
- rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP;
-
- /* Enable transmitter/receiver.
- */
- sp->scc_gsmrl |= (SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-}
-
-static void scc_halt(int scc_index)
-{
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
- volatile cpm8xx_t *cp = &(im->im_cpm);
- volatile scc_t *sp = (scc_t *) & (cp->cp_scc[scc_index]);
-
- sp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT | SCC_GSMRL_DIAG_LE);
-}
-
-static void scc_putc (int scc_index, const char c)
-{
- volatile cbd_t *tbdf;
- volatile char *buf;
- volatile scc_uart_t *up;
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
- volatile cpm8xx_t *cpmp = &(im->im_cpm);
-
- up = (scc_uart_t *) & cpmp->cp_dparam[proff_scc[scc_index]];
-
- tbdf = (cbd_t *) & cpmp->cp_dpmem[up->scc_genscc.scc_tbase];
-
- /* Wait for last character to go.
- */
-
- buf = (char *) tbdf->cbd_bufaddr;
-#if 0
- __asm__ ("eieio");
- while (tbdf->cbd_sc & BD_SC_READY)
- __asm__ ("eieio");
-#endif
-
- *buf = c;
- tbdf->cbd_datlen = 1;
- tbdf->cbd_sc |= BD_SC_READY;
- __asm__ ("eieio");
-#if 1
- while (tbdf->cbd_sc & BD_SC_READY)
- __asm__ ("eieio");
-#endif
-}
-
-static int scc_getc (int scc_index)
-{
- volatile cbd_t *rbdf;
- volatile unsigned char *buf;
- volatile scc_uart_t *up;
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
- volatile cpm8xx_t *cpmp = &(im->im_cpm);
- unsigned char c;
- int i;
-
- up = (scc_uart_t *) & cpmp->cp_dparam[proff_scc[scc_index]];
-
- rbdf = (cbd_t *) & cpmp->cp_dpmem[up->scc_genscc.scc_rbase];
-
- /* Wait for character to show up.
- */
- buf = (unsigned char *) rbdf->cbd_bufaddr;
-#if 0
- while (rbdf->cbd_sc & BD_SC_EMPTY);
-#else
- for (i = 100; i > 0; i--) {
- if (!(rbdf->cbd_sc & BD_SC_EMPTY))
- break;
- udelay (1000);
- }
-
- if (i == 0)
- return -1;
-#endif
- c = *buf;
- rbdf->cbd_sc |= BD_SC_EMPTY;
-
- return (c);
-}
-
- /*
- * Test routines
- */
-
-static int test_ctlr (int ctlr, int index)
-{
- int res = -1;
- char test_str[] = "*** UART Test String ***\r\n";
- int i;
-
- ctlr_proc[ctlr].init (index);
-
- for (i = 0; i < sizeof (test_str) - 1; i++) {
- ctlr_proc[ctlr].putc (index, test_str[i]);
- if (ctlr_proc[ctlr].getc (index) != test_str[i])
- goto Done;
- }
-
- res = 0;
-
-Done:
- ctlr_proc[ctlr].halt (index);
-
- if (res != 0) {
- post_log ("uart %s%d test failed\n",
- ctlr_name[ctlr], index + 1);
- }
-
- return res;
-}
-
-int uart_post_test (int flags)
-{
- int res = 0;
- int i;
-
- ctlr_proc[CTLR_SMC].init = smc_init;
- ctlr_proc[CTLR_SMC].halt = smc_halt;
- ctlr_proc[CTLR_SMC].putc = smc_putc;
- ctlr_proc[CTLR_SMC].getc = smc_getc;
-
- ctlr_proc[CTLR_SCC].init = scc_init;
- ctlr_proc[CTLR_SCC].halt = scc_halt;
- ctlr_proc[CTLR_SCC].putc = scc_putc;
- ctlr_proc[CTLR_SCC].getc = scc_getc;
-
- for (i = 0; i < ARRAY_SIZE(ctlr_list); i++) {
- if (test_ctlr (ctlr_list[i][0], ctlr_list[i][1]) != 0) {
- res = -1;
- }
- }
-
-#if !defined(CONFIG_8xx_CONS_NONE)
- serial_reinit_all ();
-#endif
-
- return res;
-}
-
-#endif /* CONFIG_POST & CONFIG_SYS_POST_UART */