diff options
Diffstat (limited to 'board/spc1920/hpi.c')
| -rw-r--r-- | board/spc1920/hpi.c | 596 |
1 files changed, 0 insertions, 596 deletions
diff --git a/board/spc1920/hpi.c b/board/spc1920/hpi.c deleted file mode 100644 index c593837ad6..0000000000 --- a/board/spc1920/hpi.c +++ /dev/null @@ -1,596 +0,0 @@ -/* - * (C) Copyright 2006 - * Markus Klotzbuecher, DENX Software Engineering, mk@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * Host Port Interface (HPI) - */ - -/* debug levels: - * 0 : errors - * 1 : usefull info - * 2 : lots of info - * 3 : noisy - */ - -#define DEBUG 0 - -#include <config.h> -#include <common.h> -#include <mpc8xx.h> - -#include "pld.h" -#include "hpi.h" - -#define _NOT_USED_ 0xFFFFFFFF - -/* original table: - * - inserted loops to achieve long CS low and high Periods (~217ns) - * - move cs high 2/4 to the right - */ -const uint dsp_table_slow[] = -{ - /* single read (offset 0x00 in upm ram) */ - 0x8fffdc04, 0x0fffdc84, 0x0fffdc84, 0x0fffdc00, - 0x3fffdc04, 0xffffdc84, 0xffffdc84, 0xffffdc05, - - /* burst read (offset 0x08 in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* single write (offset 0x18 in upm ram) */ - 0x8fffd004, 0x0fffd084, 0x0fffd084, 0x3fffd000, - 0xffffd084, 0xffffd084, 0xffffd005, _NOT_USED_, - - /* burst write (offset 0x20 in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* refresh (offset 0x30 in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* exception (offset 0x3C in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, -}; - -/* dsp hpi upm ram table - * works fine for noninc access, failes on incremental. - * - removed first word - */ -const uint dsp_table_fast[] = -{ - /* single read (offset 0x00 in upm ram) */ - 0x8fffdc04, 0x0fffdc04, 0x0fffdc00, 0x3fffdc04, - 0xffffdc05, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* burst read (offset 0x08 in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* single write (offset 0x18 in upm ram) */ - 0x8fffd004, 0x0fffd004, 0x3fffd000, 0xffffd005, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* burst write (offset 0x20 in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* refresh (offset 0x30 in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* exception (offset 0x3C in upm ram) */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, -}; - - -#ifdef CONFIG_SPC1920_HPI_TEST -#undef HPI_TEST_OSZI - -#define HPI_TEST_CHUNKSIZE 0x1000 -#define HPI_TEST_PATTERN 0x00000000 -#define HPI_TEST_START 0x0 -#define HPI_TEST_END 0x30000 - -#define TINY_AUTOINC_DATA_SIZE 16 /* 32bit words */ -#define TINY_AUTOINC_BASE_ADDR 0x0 - -static int hpi_activate(void); -#if 0 -static void hpi_inactivate(void); -#endif -static void dsp_reset(void); - -static int hpi_write_inc(u32 addr, u32 *data, u32 count); -static int hpi_read_inc(u32 addr, u32 *buf, u32 count); -static int hpi_write_noinc(u32 addr, u32 data); -static u32 hpi_read_noinc(u32 addr); - -int hpi_test(void); -static int hpi_write_addr_test(u32 addr); -static int hpi_read_write_test(u32 addr, u32 data); -#ifdef DO_TINY_TEST -static int hpi_tiny_autoinc_test(void); -#endif /* DO_TINY_TEST */ -#endif /* CONFIG_SPC1920_HPI_TEST */ - - -/* init the host port interface on UPMA */ -int hpi_init(void) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immr->im_memctl; - volatile spc1920_pld_t *pld = (spc1920_pld_t *) CONFIG_SYS_SPC1920_PLD_BASE; - - upmconfig(UPMA, (uint *)dsp_table_slow, sizeof(dsp_table_slow)/sizeof(uint)); - udelay(100); - - memctl->memc_mamr = CONFIG_SYS_MAMR; - memctl->memc_or3 = CONFIG_SYS_OR3; - memctl->memc_br3 = CONFIG_SYS_BR3; - - /* reset dsp */ - dsp_reset(); - - /* activate hpi switch*/ - pld->dsp_hpi_on = 0x1; - - udelay(100); - - return 0; -} - -#ifdef CONFIG_SPC1920_HPI_TEST -/* activate the Host Port interface */ -static int hpi_activate(void) -{ - volatile spc1920_pld_t *pld = (spc1920_pld_t *) CONFIG_SYS_SPC1920_PLD_BASE; - - /* turn on hpi */ - pld->dsp_hpi_on = 0x1; - - udelay(5); - - /* turn on the power EN_DSP_POWER high*/ - /* currently always on TBD */ - - /* setup hpi control register */ - HPI_HPIC_1 = (u16) 0x0008; - HPI_HPIC_2 = (u16) 0x0008; - - udelay(100); - - return 0; -} - -#if 0 -/* turn off the host port interface */ -static void hpi_inactivate(void) -{ - volatile spc1920_pld_t *pld = (spc1920_pld_t *) CONFIG_SYS_SPC1920_PLD_BASE; - - /* deactivate hpi */ - pld->dsp_hpi_on = 0x0; - - /* reset the dsp */ - /* pld->dsp_reset = 0x0; */ - - /* turn off the power EN_DSP_POWER# high*/ - /* currently always on TBD */ - -} -#endif - -/* reset the DSP */ -static void dsp_reset(void) -{ - volatile spc1920_pld_t *pld = (spc1920_pld_t *) CONFIG_SYS_SPC1920_PLD_BASE; - pld->dsp_reset = 0x1; - pld->dsp_hpi_on = 0x0; - - udelay(300000); - - pld->dsp_reset = 0x0; - pld->dsp_hpi_on = 0x1; -} - - -/* write using autoinc (count is number of 32bit words) */ -static int hpi_write_inc(u32 addr, u32 *data, u32 count) -{ - int i; - u16 addr1, addr2; - - addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */ - addr2 = (u16) (addr & 0xffff); - - /* write address */ - HPI_HPIA_1 = addr1; - HPI_HPIA_2 = addr2; - - debug("writing from data=0x%lx to 0x%lx\n", - (ulong)data, (ulong)(data+count)); - - for(i=0; i<count; i++) { - HPI_HPID_INC_1 = (u16) ((data[i] >> 16) & 0xffff); - HPI_HPID_INC_2 = (u16) (data[i] & 0xffff); - debug("hpi_write_inc: data1=0x%x, data2=0x%x\n", - (u16) ((data[i] >> 16) & 0xffff), - (u16) (data[i] & 0xffff)); - } -#if 0 - while(data_ptr < (u16*) (data + count)) { - HPI_HPID_INC_1 = *(data_ptr++); - HPI_HPID_INC_2 = *(data_ptr++); - } -#endif - - /* return number of bytes written */ - return count; -} - -/* - * read using autoinc (count is number of 32bit words) - */ -static int hpi_read_inc(u32 addr, u32 *buf, u32 count) -{ - int i; - u16 addr1, addr2, data1, data2; - - addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */ - addr2 = (u16) (addr & 0xffff); - - /* write address */ - HPI_HPIA_1 = addr1; - HPI_HPIA_2 = addr2; - - for(i=0; i<count; i++) { - data1 = HPI_HPID_INC_1; - data2 = HPI_HPID_INC_2; - debug("hpi_read_inc: data1=0x%x, data2=0x%x\n", data1, data2); - buf[i] = (((u32) data1) << 16) | (data2 & 0xffff); - } - -#if 0 - while(buf_ptr < (u16*) (buf + count)) { - *(buf_ptr++) = HPI_HPID_INC_1; - *(buf_ptr++) = HPI_HPID_INC_2; - } -#endif - - /* return number of bytes read */ - return count; -} - - -/* write to non- auto inc regs */ -static int hpi_write_noinc(u32 addr, u32 data) -{ - - u16 addr1, addr2, data1, data2; - - addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */ - addr2 = (u16) (addr & 0xffff); - - /* printf("hpi_write_noinc: addr1=0x%x, addr2=0x%x\n", addr1, addr2); */ - - HPI_HPIA_1 = addr1; - HPI_HPIA_2 = addr2; - - data1 = (u16) ((data >> 16) & 0xffff); - data2 = (u16) (data & 0xffff); - - /* printf("hpi_write_noinc: data1=0x%x, data2=0x%x\n", data1, data2); */ - - HPI_HPID_NOINC_1 = data1; - HPI_HPID_NOINC_2 = data2; - - return 0; -} - -/* read from non- auto inc regs */ -static u32 hpi_read_noinc(u32 addr) -{ - u16 addr1, addr2, data1, data2; - u32 ret; - - addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */ - addr2 = (u16) (addr & 0xffff); - - HPI_HPIA_1 = addr1; - HPI_HPIA_2 = addr2; - - /* printf("hpi_read_noinc: addr1=0x%x, addr2=0x%x\n", addr1, addr2); */ - - data1 = HPI_HPID_NOINC_1; - data2 = HPI_HPID_NOINC_2; - - /* printf("hpi_read_noinc: data1=0x%x, data2=0x%x\n", data1, data2); */ - - ret = (((u32) data1) << 16) | (data2 & 0xffff); - return ret; - -} - -/* - * Host Port Interface Tests - */ - -#ifndef HPI_TEST_OSZI -/* main test function */ -int hpi_test(void) -{ - int err = 0; - u32 i, ii, pattern, tmp; - - pattern = HPI_TEST_PATTERN; - - u32 test_data[HPI_TEST_CHUNKSIZE]; - u32 read_data[HPI_TEST_CHUNKSIZE]; - - debug("hpi_test: activating hpi..."); - hpi_activate(); - debug("OK.\n"); - -#if 0 - /* Dump the first 1024 bytes - * - */ - for(i=0; i<1024; i+=4) { - if(i%16==0) - printf("\n0x%08x: ", i); - printf("0x%08x ", hpi_read_noinc(i)); - } -#endif - - /* HPIA read-write test - * - */ - debug("hpi_test: starting HPIA read-write tests...\n"); - err |= hpi_write_addr_test(0xdeadc0de); - err |= hpi_write_addr_test(0xbeefd00d); - err |= hpi_write_addr_test(0xabcd1234); - err |= hpi_write_addr_test(0xaaaaaaaa); - if(err) { - debug("hpi_test: HPIA read-write tests: *** FAILED ***\n"); - return -1; - } - debug("hpi_test: HPIA read-write tests: OK\n"); - - - /* read write test using nonincremental data regs - * - */ - debug("hpi_test: starting nonincremental tests...\n"); - for(i=HPI_TEST_START; i<HPI_TEST_END; i+=4) { - err |= hpi_read_write_test(i, pattern); - - /* stolen from cmd_mem.c */ - if(pattern & 0x80000000) { - pattern = -pattern; /* complement & increment */ - } else { - pattern = ~pattern; - } - err |= hpi_read_write_test(i, pattern); - - if(err) { - debug("hpi_test: nonincremental tests *** FAILED ***\n"); - return -1; - } - } - debug("hpi_test: nonincremental test OK\n"); - - /* read write a chunk of data using nonincremental data regs - * - */ - debug("hpi_test: starting nonincremental chunk tests...\n"); - pattern = HPI_TEST_PATTERN; - for(i=HPI_TEST_START; i<HPI_TEST_END; i+=4) { - hpi_write_noinc(i, pattern); - - /* stolen from cmd_mem.c */ - if(pattern & 0x80000000) { - pattern = -pattern; /* complement & increment */ - } else { - pattern = ~pattern; - } - } - pattern = HPI_TEST_PATTERN; - for(i=HPI_TEST_START; i<HPI_TEST_END; i+=4) { - tmp = hpi_read_noinc(i); - - if(tmp != pattern) { - debug("hpi_test: noninc chunk test *** FAILED *** @ 0x%x, written=0x%x, read=0x%x\n", i, pattern, tmp); - err = -1; - } - /* stolen from cmd_mem.c */ - if(pattern & 0x80000000) { - pattern = -pattern; /* complement & increment */ - } else { - pattern = ~pattern; - } - } - if(err) - return -1; - debug("hpi_test: nonincremental chunk test OK\n"); - - -#ifdef DO_TINY_TEST - /* small verbose test using autoinc and nonautoinc to compare - * - */ - debug("hpi_test: tiny_autoinc_test...\n"); - hpi_tiny_autoinc_test(); - debug("hpi_test: tiny_autoinc_test done\n"); -#endif /* DO_TINY_TEST */ - - - /* $%& write a chunk of data using the autoincremental regs - * - */ - debug("hpi_test: starting autoinc test %d chunks with 0x%x bytes...\n", - ((HPI_TEST_END - HPI_TEST_START) / HPI_TEST_CHUNKSIZE), - HPI_TEST_CHUNKSIZE); - - for(i=HPI_TEST_START; - i < ((HPI_TEST_END - HPI_TEST_START) / HPI_TEST_CHUNKSIZE); - i++) { - /* generate the pattern data */ - debug("generating pattern data: "); - for(ii = 0; ii < HPI_TEST_CHUNKSIZE; ii++) { - debug("0x%x ", pattern); - - test_data[ii] = pattern; - read_data[ii] = 0x0; /* zero to be sure */ - - /* stolen from cmd_mem.c */ - if(pattern & 0x80000000) { - pattern = -pattern; /* complement & increment */ - } else { - pattern = ~pattern; - } - } - debug("done\n"); - - debug("Writing autoinc data @ 0x%x\n", i); - hpi_write_inc(i, test_data, HPI_TEST_CHUNKSIZE); - - debug("Reading autoinc data @ 0x%x\n", i); - hpi_read_inc(i, read_data, HPI_TEST_CHUNKSIZE); - - /* compare */ - for(ii = 0; ii < HPI_TEST_CHUNKSIZE; ii++) { - debug("hpi_test_autoinc: @ 0x%x, written=0x%x, read=0x%x", i+ii, test_data[ii], read_data[ii]); - if(read_data[ii] != test_data[ii]) { - debug("hpi_test: autoinc test @ 0x%x, written=0x%x, read=0x%x *** FAILED ***\n", i+ii, test_data[ii], read_data[ii]); - return -1; - } - } - } - debug("hpi_test: autoinc test OK\n"); - - return 0; -} -#else /* HPI_TEST_OSZI */ -int hpi_test(void) -{ - int i; - u32 read_data[TINY_AUTOINC_DATA_SIZE]; - - unsigned int dummy_data[TINY_AUTOINC_DATA_SIZE] = { - 0x11112222, 0x33334444, 0x55556666, 0x77778888, - 0x9999aaaa, 0xbbbbcccc, 0xddddeeee, 0xffff1111, - 0x00010002, 0x00030004, 0x00050006, 0x00070008, - 0x0009000a, 0x000b000c, 0x000d000e, 0x000f0001 - }; - - debug("hpi_test: activating hpi..."); - hpi_activate(); - debug("OK.\n"); - - while(1) { - led9(1); - debug(" writing to autoinc...\n"); - hpi_write_inc(TINY_AUTOINC_BASE_ADDR, - dummy_data, TINY_AUTOINC_DATA_SIZE); - - debug(" reading from autoinc...\n"); - hpi_read_inc(TINY_AUTOINC_BASE_ADDR, - read_data, TINY_AUTOINC_DATA_SIZE); - - for(i=0; i < (TINY_AUTOINC_DATA_SIZE); i++) { - debug(" written=0x%x, read(inc)=0x%x\n", - dummy_data[i], read_data[i]); - } - led9(0); - udelay(2000000); - } - return 0; -} -#endif - -/* test if Host Port Address Register can be written correctly */ -static int hpi_write_addr_test(u32 addr) -{ - u32 read_back; - /* write address */ - HPI_HPIA_1 = ((u16) (addr >> 16)); /* First HW is most significant */ - HPI_HPIA_2 = ((u16) addr); - - read_back = (((u32) HPI_HPIA_1)<<16) | ((u32) HPI_HPIA_2); - - if(read_back == addr) { - debug(" hpi_write_addr_test OK: written=0x%x, read=0x%x\n", - addr, read_back); - return 0; - } else { - debug(" hpi_write_addr_test *** FAILED ***: written=0x%x, read=0x%x\n", - addr, read_back); - return -1; - } - - return 0; -} - -/* test if a simple read/write sequence succeeds */ -static int hpi_read_write_test(u32 addr, u32 data) -{ - u32 read_back; - - hpi_write_noinc(addr, data); - read_back = hpi_read_noinc(addr); - - if(read_back == data) { - debug(" hpi_read_write_test: OK, addr=0x%x written=0x%x, read=0x%x\n", addr, data, read_back); - return 0; - } else { - debug(" hpi_read_write_test: *** FAILED ***, addr=0x%x written=0x%x, read=0x%x\n", addr, data, read_back); - return -1; - } - - return 0; -} - -#ifdef DO_TINY_TEST -static int hpi_tiny_autoinc_test(void) -{ - int i; - u32 read_data[TINY_AUTOINC_DATA_SIZE]; - u32 read_data_noinc[TINY_AUTOINC_DATA_SIZE]; - - unsigned int dummy_data[TINY_AUTOINC_DATA_SIZE] = { - 0x11112222, 0x33334444, 0x55556666, 0x77778888, - 0x9999aaaa, 0xbbbbcccc, 0xddddeeee, 0xffff1111, - 0x00010002, 0x00030004, 0x00050006, 0x00070008, - 0x0009000a, 0x000b000c, 0x000d000e, 0x000f0001 - }; - - printf(" writing to autoinc...\n"); - hpi_write_inc(TINY_AUTOINC_BASE_ADDR, dummy_data, TINY_AUTOINC_DATA_SIZE); - - printf(" reading from autoinc...\n"); - hpi_read_inc(TINY_AUTOINC_BASE_ADDR, read_data, TINY_AUTOINC_DATA_SIZE); - - printf(" reading from noinc for comparison...\n"); - for(i=0; i < (TINY_AUTOINC_DATA_SIZE); i++) - read_data_noinc[i] = hpi_read_noinc(TINY_AUTOINC_BASE_ADDR+i*4); - - for(i=0; i < (TINY_AUTOINC_DATA_SIZE); i++) { - printf(" written=0x%x, read(inc)=0x%x, read(noinc)=0x%x\n", - dummy_data[i], read_data[i], read_data_noinc[i]); - } - return 0; -} -#endif /* DO_TINY_TEST */ - -#endif /* CONFIG_SPC1920_HPI_TEST */ |