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i386: Replace [read, write]_mmcr_[byte, word, long] with memory mapped structure 

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
This commit is contained in:
Graeme Russ 2009-08-23 12:59:56 +10:00 committed by Wolfgang Denk
parent 9b32f96b5b
commit ed7a1b681d
9 changed files with 539 additions and 534 deletions
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80
board/eNET/eNET.c
View File

@ -46,7 +46,7 @@ unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
void init_sc520_enet (void) void init_sc520_enet (void)
{ {
/* Set CPU Speed to 100MHz */ /* Set CPU Speed to 100MHz */
write_mmcr_byte(SC520_CPUCTL, 1); sc520_mmcr->cpuctl = 0x01;
gd->cpu_clk = 100000000; gd->cpu_clk = 100000000;
/* wait at least one millisecond */ /* wait at least one millisecond */
@ -56,7 +56,7 @@ void init_sc520_enet (void)
"loop 0b\n": : : "ecx"); "loop 0b\n": : : "ecx");
/* turn on the SDRAM write buffer */ /* turn on the SDRAM write buffer */
write_mmcr_byte(SC520_DBCTL, 0x11); sc520_mmcr->dbctl = 0x11;
/* turn on the cache and disable write through */ /* turn on the cache and disable write through */
asm("movl %%cr0, %%eax\n" asm("movl %%cr0, %%eax\n"
@ -71,51 +71,51 @@ int board_init(void)
{ {
init_sc520_enet(); init_sc520_enet();
write_mmcr_byte(SC520_GPCSRT, 0x01); /* GP Chip Select Recovery Time */ sc520_mmcr->gpcsrt = 0x01; /* GP Chip Select Recovery Time */
write_mmcr_byte(SC520_GPCSPW, 0x07); /* GP Chip Select Pulse Width */ sc520_mmcr->gpcspw = 0x07; /* GP Chip Select Pulse Width */
write_mmcr_byte(SC520_GPCSOFF, 0x00); /* GP Chip Select Offset */ sc520_mmcr->gpcsoff = 0x00; /* GP Chip Select Offset */
write_mmcr_byte(SC520_GPRDW, 0x05); /* GP Read pulse width */ sc520_mmcr->gprdw = 0x05; /* GP Read pulse width */
write_mmcr_byte(SC520_GPRDOFF, 0x01); /* GP Read offset */ sc520_mmcr->gprdoff = 0x01; /* GP Read offset */
write_mmcr_byte(SC520_GPWRW, 0x05); /* GP Write pulse width */ sc520_mmcr->gpwrw = 0x05; /* GP Write pulse width */
write_mmcr_byte(SC520_GPWROFF, 0x01); /* GP Write offset */ sc520_mmcr->gpwroff = 0x01; /* GP Write offset */
write_mmcr_word(SC520_PIODATA15_0, 0x0630); /* PIO15_PIO0 Data */ sc520_mmcr->piodata15_0 = 0x0630; /* PIO15_PIO0 Data */
write_mmcr_word(SC520_PIODATA31_16, 0x2000); /* PIO31_PIO16 Data */ sc520_mmcr->piodata31_16 = 0x2000; /* PIO31_PIO16 Data */
write_mmcr_word(SC520_PIODIR31_16, 0x2000); /* GPIO Direction */ sc520_mmcr->piodir31_16 = 0x2000; /* GPIO Direction */
write_mmcr_word(SC520_PIODIR15_0, 0x87b5); /* GPIO Direction */ sc520_mmcr->piodir15_0 = 0x87b5; /* GPIO Direction */
write_mmcr_word(SC520_PIOPFS31_16, 0x0dfe); /* GPIO pin function 31-16 reg */ sc520_mmcr->piopfs31_16 = 0x0dfe; /* GPIO pin function 31-16 reg */
write_mmcr_word(SC520_PIOPFS15_0, 0x200a); /* GPIO pin function 15-0 reg */ sc520_mmcr->piopfs15_0 = 0x200a; /* GPIO pin function 15-0 reg */
write_mmcr_byte(SC520_CSPFS, 0x00f8); /* Chip Select Pin Function Select */ sc520_mmcr->cspfs = 0x00f8; /* Chip Select Pin Function Select */
write_mmcr_long(SC520_PAR2, 0x200713f8); /* Uart A (GPCS0, 0x013f8, 8 Bytes) */ sc520_mmcr->par[2] = 0x200713f8; /* Uart A (GPCS0, 0x013f8, 8 Bytes) */
write_mmcr_long(SC520_PAR3, 0x2c0712f8); /* Uart B (GPCS3, 0x012f8, 8 Bytes) */ sc520_mmcr->par[3] = 0x2c0712f8; /* Uart B (GPCS3, 0x012f8, 8 Bytes) */
write_mmcr_long(SC520_PAR4, 0x300711f8); /* Uart C (GPCS4, 0x011f8, 8 Bytes) */ sc520_mmcr->par[4] = 0x300711f8; /* Uart C (GPCS4, 0x011f8, 8 Bytes) */
write_mmcr_long(SC520_PAR5, 0x340710f8); /* Uart D (GPCS5, 0x010f8, 8 Bytes) */ sc520_mmcr->par[5] = 0x340710f8; /* Uart D (GPCS5, 0x010f8, 8 Bytes) */
write_mmcr_long(SC520_PAR6, 0xe3ffc000); /* SDRAM (0x00000000, 128MB) */ sc520_mmcr->par[6] = 0xe3ffc000; /* SDRAM (0x00000000, 128MB) */
write_mmcr_long(SC520_PAR7, 0xaa3fd000); /* StrataFlash (ROMCS1, 0x10000000, 16MB) */ sc520_mmcr->par[7] = 0xaa3fd000; /* StrataFlash (ROMCS1, 0x10000000, 16MB) */
write_mmcr_long(SC520_PAR8, 0xca3fd100); /* StrataFlash (ROMCS2, 0x11000000, 16MB) */ sc520_mmcr->par[8] = 0xca3fd100; /* StrataFlash (ROMCS2, 0x11000000, 16MB) */
write_mmcr_long(SC520_PAR9, 0x4203d900); /* SRAM (GPCS0, 0x19000000, 1MB) */ sc520_mmcr->par[9] = 0x4203d900; /* SRAM (GPCS0, 0x19000000, 1MB) */
write_mmcr_long(SC520_PAR10, 0x4e03d910); /* SRAM (GPCS3, 0x19100000, 1MB) */ sc520_mmcr->par[10] = 0x4e03d910; /* SRAM (GPCS3, 0x19100000, 1MB) */
write_mmcr_long(SC520_PAR11, 0x50018100); /* DP-RAM (GPCS4, 0x18100000, 4kB) */ sc520_mmcr->par[11] = 0x50018100; /* DP-RAM (GPCS4, 0x18100000, 4kB) */
write_mmcr_long(SC520_PAR12, 0x54020000); /* CFLASH1 (0x200000000, 4kB) */ sc520_mmcr->par[12] = 0x54020000; /* CFLASH1 (0x200000000, 4kB) */
write_mmcr_long(SC520_PAR13, 0x5c020001); /* CFLASH2 (0x200010000, 4kB) */ sc520_mmcr->par[13] = 0x5c020001; /* CFLASH2 (0x200010000, 4kB) */
/* write_mmcr_long(SC520_PAR14, 0x8bfff800); */ /* BOOTCS at 0x18000000 */ /* sc520_mmcr->par14 = 0x8bfff800; */ /* BOOTCS at 0x18000000 */
/* write_mmcr_long(SC520_PAR15, 0x38201000); */ /* LEDs etc (GPCS6, 0x1000, 20 Bytes */ /* sc520_mmcr->par15 = 0x38201000; */ /* LEDs etc (GPCS6, 0x1000, 20 Bytes */
/* Disable Watchdog */ /* Disable Watchdog */
write_mmcr_word(0x0cb0, 0x3333); sc520_mmcr->wdtmrctl = 0x3333;
write_mmcr_word(0x0cb0, 0xcccc); sc520_mmcr->wdtmrctl = 0xcccc;
write_mmcr_word(0x0cb0, 0x0000); sc520_mmcr->wdtmrctl = 0x0000;
/* Chip Select Configuration */ /* Chip Select Configuration */
write_mmcr_word(SC520_BOOTCSCTL, 0x0033); sc520_mmcr->bootcsctl = 0x0033;
write_mmcr_word(SC520_ROMCS1CTL, 0x0615); sc520_mmcr->romcs1ctl = 0x0615;
write_mmcr_word(SC520_ROMCS2CTL, 0x0615); sc520_mmcr->romcs2ctl = 0x0615;
write_mmcr_byte(SC520_ADDDECCTL, 0x02); sc520_mmcr->adddecctl = 0x02;
write_mmcr_byte(SC520_UART1CTL, 0x07); sc520_mmcr->uart1ctl = 0x07;
write_mmcr_byte(SC520_SYSARBCTL,0x06); sc520_mmcr->sysarbctl = 0x06;
write_mmcr_word(SC520_SYSARBMENB, 0x0003); sc520_mmcr->sysarbmenb = 0x0003;
/* Crystal is 33.000MHz */ /* Crystal is 33.000MHz */
gd->bus_clk = 33000000; gd->bus_clk = 33000000;

14
board/sc520_cdp/flash.c
View File

@ -337,12 +337,12 @@ done: ;
unsigned micro; \ unsigned micro; \
unsigned milli=0; \ unsigned milli=0; \
\ \
micro = *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); \ micro = sc520_mmcr->swtmrmilli; \
\ \
for (;;) { \ for (;;) { \
\ \
milli += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); \ milli += sc520_mmcr->swtmrmilli; \
micro = *(volatile u16*)(0xfffef000+SC520_SWTMRMICRO); \ micro = sc520_mmcr->swtmrmicro; \
\ \
if ((delay) <= (micro + (milli * 1000))) { \ if ((delay) <= (micro + (milli * 1000))) { \
break; \ break; \
@ -364,12 +364,12 @@ static u32 _amd_erase_flash(u32 addr, u32 sector)
/* Sector erase command comes last */ /* Sector erase command comes last */
*(volatile u32*)(addr + sector) = 0x30303030; *(volatile u32*)(addr + sector) = 0x30303030;
elapsed = *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); /* dummy read */ elapsed = sc520_mmcr->swtmrmilli; /* dummy read */
elapsed = 0; elapsed = 0;
__udelay(50); __udelay(50);
while (((*(volatile u32*)(addr + sector)) & 0x80808080) != 0x80808080) { while (((*(volatile u32*)(addr + sector)) & 0x80808080) != 0x80808080) {
elapsed += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); elapsed += sc520_mmcr->swtmrmilli;
if (elapsed > ((CONFIG_SYS_FLASH_ERASE_TOUT/CONFIG_SYS_HZ) * 1000)) { if (elapsed > ((CONFIG_SYS_FLASH_ERASE_TOUT/CONFIG_SYS_HZ) * 1000)) {
*(volatile u32*)(addr) = 0xf0f0f0f0; *(volatile u32*)(addr) = 0xf0f0f0f0;
return 1; return 1;
@ -487,12 +487,12 @@ static int _amd_write_word(unsigned start, unsigned dest, unsigned data)
dest2[0] = data; dest2[0] = data;
elapsed = *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); /* dummy read */ elapsed = sc520_mmcr->swtmrmilli; /* dummy read */
elapsed = 0; elapsed = 0;
/* data polling for D7 */ /* data polling for D7 */
while ((dest2[0] & 0x80808080) != (data2[0] & 0x80808080)) { while ((dest2[0] & 0x80808080) != (data2[0] & 0x80808080)) {
elapsed += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); elapsed += sc520_mmcr->swtmrmilli;
if (elapsed > ((CONFIG_SYS_FLASH_WRITE_TOUT/CONFIG_SYS_HZ) * 1000)) { if (elapsed > ((CONFIG_SYS_FLASH_WRITE_TOUT/CONFIG_SYS_HZ) * 1000)) {
addr2[0] = 0xf0f0f0f0; addr2[0] = 0xf0f0f0f0;
return 1; return 1;

165
board/sc520_cdp/sc520_cdp.c
View File

@ -58,61 +58,60 @@ DECLARE_GLOBAL_DATA_PTR;
static void irq_init(void) static void irq_init(void)
{ {
/* disable global interrupt mode */ /* disable global interrupt mode */
write_mmcr_byte(SC520_PICICR, 0x40); sc520_mmcr->picicr = 0x40;
/* set all irqs to edge */ /* set all irqs to edge */
write_mmcr_byte(SC520_MPICMODE, 0x00); sc520_mmcr->pic_mode[0] = 0x00;
write_mmcr_byte(SC520_SL1PICMODE, 0x00); sc520_mmcr->pic_mode[1] = 0x00;
write_mmcr_byte(SC520_SL2PICMODE, 0x00); sc520_mmcr->pic_mode[2] = 0x00;
/* active low polarity on PIC interrupt pins, /* active low polarity on PIC interrupt pins,
* active high polarity on all other irq pins */ * active high polarity on all other irq pins */
write_mmcr_word(SC520_INTPINPOL, 0x0000); sc520_mmcr->intpinpol = 0x0000;
/* set irq number mapping */ /* set irq number mapping */
write_mmcr_byte(SC520_GPTMR0MAP, SC520_IRQ_DISABLED); /* disable GP timer 0 INT */ sc520_mmcr->gp_tmr_int_map[0] = SC520_IRQ_DISABLED; /* disable GP timer 0 INT */
write_mmcr_byte(SC520_GPTMR1MAP, SC520_IRQ_DISABLED); /* disable GP timer 1 INT */ sc520_mmcr->gp_tmr_int_map[1] = SC520_IRQ_DISABLED; /* disable GP timer 1 INT */
write_mmcr_byte(SC520_GPTMR2MAP, SC520_IRQ_DISABLED); /* disable GP timer 2 INT */ sc520_mmcr->gp_tmr_int_map[2] = SC520_IRQ_DISABLED; /* disable GP timer 2 INT */
write_mmcr_byte(SC520_PIT0MAP, SC520_IRQ0); /* Set PIT timer 0 INT to IRQ0 */ sc520_mmcr->pit_int_map[0] = SC520_IRQ0; /* Set PIT timer 0 INT to IRQ0 */
write_mmcr_byte(SC520_PIT1MAP, SC520_IRQ_DISABLED); /* disable PIT timer 1 INT */ sc520_mmcr->pit_int_map[1] = SC520_IRQ_DISABLED; /* disable PIT timer 1 INT */
write_mmcr_byte(SC520_PIT2MAP, SC520_IRQ_DISABLED); /* disable PIT timer 2 INT */ sc520_mmcr->pit_int_map[2] = SC520_IRQ_DISABLED; /* disable PIT timer 2 INT */
write_mmcr_byte(SC520_PCIINTAMAP, SC520_IRQ_DISABLED); /* disable PCI INT A */ sc520_mmcr->pci_int_map[0] = SC520_IRQ_DISABLED; /* disable PCI INT A */
write_mmcr_byte(SC520_PCIINTBMAP, SC520_IRQ_DISABLED); /* disable PCI INT B */ sc520_mmcr->pci_int_map[1] = SC520_IRQ_DISABLED; /* disable PCI INT B */
write_mmcr_byte(SC520_PCIINTCMAP, SC520_IRQ_DISABLED); /* disable PCI INT C */ sc520_mmcr->pci_int_map[2] = SC520_IRQ_DISABLED; /* disable PCI INT C */
write_mmcr_byte(SC520_PCIINTDMAP, SC520_IRQ_DISABLED); /* disable PCI INT D */ sc520_mmcr->pci_int_map[3] = SC520_IRQ_DISABLED; /* disable PCI INT D */
write_mmcr_byte(SC520_DMABCINTMAP, SC520_IRQ_DISABLED); /* disable DMA INT */ sc520_mmcr->dmabcintmap = SC520_IRQ_DISABLED; /* disable DMA INT */
write_mmcr_byte(SC520_SSIMAP, SC520_IRQ_DISABLED); /* disable Synchronius serial INT */ sc520_mmcr->ssimap = SC520_IRQ_DISABLED; /* disable Synchronius serial INT */
write_mmcr_byte(SC520_WDTMAP, SC520_IRQ_DISABLED); /* disable Watchdog INT */ sc520_mmcr->wdtmap = SC520_IRQ_DISABLED; /* disable Watchdog INT */
write_mmcr_byte(SC520_RTCMAP, SC520_IRQ8); /* Set RTC int to 8 */ sc520_mmcr->rtcmap = SC520_IRQ8; /* Set RTC int to 8 */
write_mmcr_byte(SC520_WPVMAP, SC520_IRQ_DISABLED); /* disable write protect INT */ sc520_mmcr->wpvmap = SC520_IRQ_DISABLED; /* disable write protect INT */
write_mmcr_byte(SC520_ICEMAP, SC520_IRQ1); /* Set ICE Debug Serielport INT to IRQ1 */ sc520_mmcr->icemap = SC520_IRQ1; /* Set ICE Debug Serielport INT to IRQ1 */
write_mmcr_byte(SC520_FERRMAP,SC520_IRQ13); /* Set FP error INT to IRQ13 */ sc520_mmcr->ferrmap = SC520_IRQ13; /* Set FP error INT to IRQ13 */
if (CONFIG_SYS_USE_SIO_UART) { if (CONFIG_SYS_USE_SIO_UART) {
write_mmcr_byte(SC520_UART1MAP, SC520_IRQ_DISABLED); /* disable internal UART1 INT */ sc520_mmcr->uart_int_map[0] = SC520_IRQ_DISABLED; /* disable internal UART1 INT */
write_mmcr_byte(SC520_UART2MAP, SC520_IRQ_DISABLED); /* disable internal UART2 INT */ sc520_mmcr->uart_int_map[1] = SC520_IRQ_DISABLED; /* disable internal UART2 INT */
write_mmcr_byte(SC520_GP3IMAP, SC520_IRQ3); /* Set GPIRQ3 (ISA IRQ3) to IRQ3 */ sc520_mmcr->gp_int_map[3] = SC520_IRQ3; /* Set GPIRQ3 (ISA IRQ3) to IRQ3 */
write_mmcr_byte(SC520_GP4IMAP, SC520_IRQ4); /* Set GPIRQ4 (ISA IRQ4) to IRQ4 */ sc520_mmcr->gp_int_map[4] = SC520_IRQ4; /* Set GPIRQ4 (ISA IRQ4) to IRQ4 */
} else { } else {
write_mmcr_byte(SC520_UART1MAP, SC520_IRQ4); /* Set internal UART2 INT to IRQ4 */ sc520_mmcr->uart_int_map[0] = SC520_IRQ4; /* Set internal UART2 INT to IRQ4 */
write_mmcr_byte(SC520_UART2MAP, SC520_IRQ3); /* Set internal UART2 INT to IRQ3 */ sc520_mmcr->uart_int_map[1] = SC520_IRQ3; /* Set internal UART2 INT to IRQ3 */
write_mmcr_byte(SC520_GP3IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ3 (ISA IRQ3) */ sc520_mmcr->gp_int_map[3] = SC520_IRQ_DISABLED; /* disable GPIRQ3 (ISA IRQ3) */
write_mmcr_byte(SC520_GP4IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ4 (ISA IRQ4) */ sc520_mmcr->gp_int_map[4] = SC520_IRQ_DISABLED; /* disable GPIRQ4 (ISA IRQ4) */
} }
write_mmcr_byte(SC520_GP1IMAP, SC520_IRQ1); /* Set GPIRQ1 (SIO IRQ1) to IRQ1 */ sc520_mmcr->gp_int_map[1] = SC520_IRQ1; /* Set GPIRQ1 (SIO IRQ1) to IRQ1 */
write_mmcr_byte(SC520_GP5IMAP, SC520_IRQ5); /* Set GPIRQ5 (ISA IRQ5) to IRQ5 */ sc520_mmcr->gp_int_map[5] = SC520_IRQ5; /* Set GPIRQ5 (ISA IRQ5) to IRQ5 */
write_mmcr_byte(SC520_GP6IMAP, SC520_IRQ6); /* Set GPIRQ6 (ISA IRQ6) to IRQ6 */ sc520_mmcr->gp_int_map[6] = SC520_IRQ6; /* Set GPIRQ6 (ISA IRQ6) to IRQ6 */
write_mmcr_byte(SC520_GP7IMAP, SC520_IRQ7); /* Set GPIRQ7 (ISA IRQ7) to IRQ7 */ sc520_mmcr->gp_int_map[7] = SC520_IRQ7; /* Set GPIRQ7 (ISA IRQ7) to IRQ7 */
write_mmcr_byte(SC520_GP8IMAP, SC520_IRQ8); /* Set GPIRQ8 (SIO IRQ8) to IRQ8 */ sc520_mmcr->gp_int_map[8] = SC520_IRQ8; /* Set GPIRQ8 (SIO IRQ8) to IRQ8 */
write_mmcr_byte(SC520_GP9IMAP, SC520_IRQ9); /* Set GPIRQ9 (ISA IRQ2) to IRQ9 */ sc520_mmcr->gp_int_map[9] = SC520_IRQ9; /* Set GPIRQ9 (ISA IRQ2) to IRQ9 */
write_mmcr_byte(SC520_GP0IMAP, SC520_IRQ11); /* Set GPIRQ0 (ISA IRQ11) to IRQ10 */ sc520_mmcr->gp_int_map[0] = SC520_IRQ11; /* Set GPIRQ0 (ISA IRQ11) to IRQ10 */
write_mmcr_byte(SC520_GP2IMAP, SC520_IRQ12); /* Set GPIRQ2 (ISA IRQ12) to IRQ12 */ sc520_mmcr->gp_int_map[2] = SC520_IRQ12; /* Set GPIRQ2 (ISA IRQ12) to IRQ12 */
write_mmcr_byte(SC520_GP10IMAP,SC520_IRQ14); /* Set GPIRQ10 (ISA IRQ14) to IRQ14 */ sc520_mmcr->gp_int_map[10] = SC520_IRQ14; /* Set GPIRQ10 (ISA IRQ14) to IRQ14 */
write_mmcr_word(SC520_PCIHOSTMAP, 0x11f); /* Map PCI hostbridge INT to NMI */
write_mmcr_word(SC520_ECCMAP, 0x100); /* Map SDRAM ECC failure INT to NMI */
sc520_mmcr->pcihostmap = 0x11f; /* Map PCI hostbridge INT to NMI */
sc520_mmcr->eccmap = 0x100; /* Map SDRAM ECC failure INT to NMI */
} }
#ifdef CONFIG_PCI #ifdef CONFIG_PCI
@ -235,23 +234,22 @@ static void bus_init(void)
{ {
/* set up the GP IO pins */ /* set up the GP IO pins */
write_mmcr_word(SC520_PIOPFS31_16, 0xf7ff); /* set the GPIO pin function 31-16 reg */ sc520_mmcr->piopfs31_16 = 0xf7ff; /* set the GPIO pin function 31-16 reg */
write_mmcr_word(SC520_PIOPFS15_0, 0xffff); /* set the GPIO pin function 15-0 reg */ sc520_mmcr->piopfs15_0 = 0xffff; /* set the GPIO pin function 15-0 reg */
write_mmcr_byte(SC520_CSPFS, 0xf8); /* set the CS pin function reg */ sc520_mmcr->cspfs = 0xf8; /* set the CS pin function reg */
write_mmcr_byte(SC520_CLKSEL, 0x70); sc520_mmcr->clksel = 0x70;
sc520_mmcr->gpcsrt = 1; /* set the GP CS offset */
sc520_mmcr->gpcspw = 3; /* set the GP CS pulse width */
sc520_mmcr->gpcsoff = 1; /* set the GP CS offset */
sc520_mmcr->gprdw = 3; /* set the RD pulse width */
sc520_mmcr->gprdoff = 1; /* set the GP RD offset */
sc520_mmcr->gpwrw = 3; /* set the GP WR pulse width */
sc520_mmcr->gpwroff = 1; /* set the GP WR offset */
write_mmcr_byte(SC520_GPCSRT, 1); /* set the GP CS offset */ sc520_mmcr->bootcsctl = 0x1823; /* set up timing of BOOTCS */
write_mmcr_byte(SC520_GPCSPW, 3); /* set the GP CS pulse width */ sc520_mmcr->romcs1ctl = 0x1823; /* set up timing of ROMCS1 */
write_mmcr_byte(SC520_GPCSOFF, 1); /* set the GP CS offset */ sc520_mmcr->romcs2ctl = 0x1823; /* set up timing of ROMCS2 */
write_mmcr_byte(SC520_GPRDW, 3); /* set the RD pulse width */
write_mmcr_byte(SC520_GPRDOFF, 1); /* set the GP RD offset */
write_mmcr_byte(SC520_GPWRW, 3); /* set the GP WR pulse width */
write_mmcr_byte(SC520_GPWROFF, 1); /* set the GP WR offset */
write_mmcr_word(SC520_BOOTCSCTL, 0x1823); /* set up timing of BOOTCS */
write_mmcr_word(SC520_ROMCS1CTL, 0x1823); /* set up timing of ROMCS1 */
write_mmcr_word(SC520_ROMCS2CTL, 0x1823); /* set up timing of ROMCS2 */
/* adjust the memory map: /* adjust the memory map:
* by default the first 256MB (0x00000000 - 0x0fffffff) is mapped to SDRAM * by default the first 256MB (0x00000000 - 0x0fffffff) is mapped to SDRAM
@ -260,31 +258,31 @@ static void bus_init(void)
/* SRAM = GPCS3 128k @ d0000-effff*/ /* SRAM = GPCS3 128k @ d0000-effff*/
write_mmcr_long(SC520_PAR2, 0x4e00400d); sc520_mmcr->par[2] = 0x4e00400d;
/* IDE0 = GPCS6 1f0-1f7 */ /* IDE0 = GPCS6 1f0-1f7 */
write_mmcr_long(SC520_PAR3, 0x380801f0); sc520_mmcr->par[3] = 0x380801f0;
/* IDE1 = GPCS7 3f6 */ /* IDE1 = GPCS7 3f6 */
write_mmcr_long(SC520_PAR4, 0x3c0003f6); sc520_mmcr->par[4] = 0x3c0003f6;
/* bootcs */ /* bootcs */
write_mmcr_long(SC520_PAR12, 0x8bffe800); sc520_mmcr->par[12] = 0x8bffe800;
/* romcs2 */ /* romcs2 */
write_mmcr_long(SC520_PAR13, 0xcbfff000); sc520_mmcr->par[13] = 0xcbfff000;
/* romcs1 */ /* romcs1 */
write_mmcr_long(SC520_PAR14, 0xabfff800); sc520_mmcr->par[14] = 0xabfff800;
/* 680 LEDS */ /* 680 LEDS */
write_mmcr_long(SC520_PAR15, 0x30000640); sc520_mmcr->par[15] = 0x30000640;
write_mmcr_byte(SC520_ADDDECCTL, 0); sc520_mmcr->adddecctl = 0;
asm ("wbinvd\n"); /* Flush cache, req. after setting the unchached attribute ona PAR */ asm ("wbinvd\n"); /* Flush cache, req. after setting the unchached attribute ona PAR */
if (CONFIG_SYS_USE_SIO_UART) { if (CONFIG_SYS_USE_SIO_UART) {
write_mmcr_byte(SC520_ADDDECCTL, read_mmcr_byte(SC520_ADDDECCTL) | UART2_DIS|UART1_DIS); sc520_mmcr->adddecctl = sc520_mmcr->adddecctl | UART2_DIS | UART1_DIS;
setup_ali_sio(1); setup_ali_sio(1);
} else { } else {
write_mmcr_byte(SC520_ADDDECCTL, read_mmcr_byte(SC520_ADDDECCTL) & ~(UART2_DIS|UART1_DIS)); sc520_mmcr->adddecctl = sc520_mmcr->adddecctl & ~(UART2_DIS|UART1_DIS);
setup_ali_sio(0); setup_ali_sio(0);
silence_uart(0x3e8); silence_uart(0x3e8);
silence_uart(0x2e8); silence_uart(0x2e8);
@ -352,7 +350,7 @@ u32 isa_map_rom(u32 bus_addr, int size)
PRINTF ("setting PAR11 to %x\n", par); PRINTF ("setting PAR11 to %x\n", par);
/* Map rom 0x10000 with PAR1 */ /* Map rom 0x10000 with PAR1 */
write_mmcr_long(SC520_PAR11, par); sc520_mmcr->par[11] = par;
return bus_addr; return bus_addr;
} }
@ -364,8 +362,8 @@ u32 isa_map_rom(u32 bus_addr, int size)
void isa_unmap_rom(u32 addr) void isa_unmap_rom(u32 addr)
{ {
PRINTF("isa_unmap_rom asked to unmap %x", addr); PRINTF("isa_unmap_rom asked to unmap %x", addr);
if ((addr>>12) == (read_mmcr_long(SC520_PAR11)&0x3ffff)) { if ((addr>>12) == (sc520_mmcr->par[11] & 0x3ffff)) {
write_mmcr_long(SC520_PAR11, 0); sc520_mmcr->par[11] = 0;
PRINTF(" done\n"); PRINTF(" done\n");
return; return;
} }
@ -401,7 +399,7 @@ u32 pci_get_rom_window(struct pci_controller *hose, int size)
PRINTF ("setting PAR1 to %x\n", par); PRINTF ("setting PAR1 to %x\n", par);
/* Map rom 0x10000 with PAR1 */ /* Map rom 0x10000 with PAR1 */
write_mmcr_long(SC520_PAR1, par); sc520_mmcr->par[1] = par;
return PCI_ROM_TEMP_SPACE; return PCI_ROM_TEMP_SPACE;
} }
@ -414,7 +412,7 @@ void pci_remove_rom_window(struct pci_controller *hose, u32 addr)
{ {
PRINTF("pci_remove_rom_window: %x", addr); PRINTF("pci_remove_rom_window: %x", addr);
if (addr == PCI_ROM_TEMP_SPACE) { if (addr == PCI_ROM_TEMP_SPACE) {
write_mmcr_long(SC520_PAR1, 0); sc520_mmcr->par[1] = 0;
PRINTF(" done\n"); PRINTF(" done\n");
return; return;
} }
@ -432,11 +430,10 @@ void pci_remove_rom_window(struct pci_controller *hose, u32 addr)
int pci_enable_legacy_video_ports(struct pci_controller *hose) int pci_enable_legacy_video_ports(struct pci_controller *hose)
{ {
/* Map video memory to 0xa0000*/ /* Map video memory to 0xa0000*/
write_mmcr_long(SC520_PAR0, 0x7200400a); sc520_mmcr->par[0] = 0x7200400a;
/* forward all I/O accesses to PCI */ /* forward all I/O accesses to PCI */
write_mmcr_byte(SC520_ADDDECCTL, sc520_mmcr->adddecctl = sc520_mmcr->adddecctl | IO_HOLE_DEST_PCI;
read_mmcr_byte(SC520_ADDDECCTL) | IO_HOLE_DEST_PCI);
/* so we map away all io ports to pci (only way to access pci io /* so we map away all io ports to pci (only way to access pci io
@ -446,32 +443,32 @@ int pci_enable_legacy_video_ports(struct pci_controller *hose)
*/ */
/* bring 0x100 - 0x1ef back to ISA using PAR5 */ /* bring 0x100 - 0x1ef back to ISA using PAR5 */
write_mmcr_long(SC520_PAR5, 0x30ef0100); sc520_mmcr->par[5] = 0x30ef0100;
/* IDE use 1f0-1f7 */ /* IDE use 1f0-1f7 */
/* bring 0x1f8 - 0x2f7 back to ISA using PAR6 */ /* bring 0x1f8 - 0x2f7 back to ISA using PAR6 */
write_mmcr_long(SC520_PAR6, 0x30ff01f8); sc520_mmcr->par[6] = 0x30ff01f8;
/* com2 use 2f8-2ff */ /* com2 use 2f8-2ff */
/* bring 0x300 - 0x3af back to ISA using PAR7 */ /* bring 0x300 - 0x3af back to ISA using PAR7 */
write_mmcr_long(SC520_PAR7, 0x30af0300); sc520_mmcr->par[7] = 0x30af0300;
/* vga use 3b0-3bb */ /* vga use 3b0-3bb */
/* bring 0x3bc - 0x3bf back to ISA using PAR8 */ /* bring 0x3bc - 0x3bf back to ISA using PAR8 */
write_mmcr_long(SC520_PAR8, 0x300303bc); sc520_mmcr->par[8] = 0x300303bc;
/* vga use 3c0-3df */ /* vga use 3c0-3df */
/* bring 0x3e0 - 0x3f5 back to ISA using PAR9 */ /* bring 0x3e0 - 0x3f5 back to ISA using PAR9 */
write_mmcr_long(SC520_PAR9, 0x301503e0); sc520_mmcr->par[9] = 0x301503e0;
/* ide use 3f6 */ /* ide use 3f6 */
/* bring 0x3f7 back to ISA using PAR10 */ /* bring 0x3f7 back to ISA using PAR10 */
write_mmcr_long(SC520_PAR10, 0x300003f7); sc520_mmcr->par[10] = 0x300003f7;
/* com1 use 3f8-3ff */ /* com1 use 3f8-3ff */
@ -490,12 +487,12 @@ int board_init(void)
irq_init(); irq_init();
/* max drive current on SDRAM */ /* max drive current on SDRAM */
write_mmcr_word(SC520_DSCTL, 0x0100); sc520_mmcr->dsctl = 0x0100;
/* enter debug mode after next reset (only if jumper is also set) */ /* enter debug mode after next reset (only if jumper is also set) */
write_mmcr_byte(SC520_RESCFG, 0x08); sc520_mmcr->rescfg = 0x08;
/* configure the software timer to 33.333MHz */ /* configure the software timer to 33.333MHz */
write_mmcr_byte(SC520_SWTMRCFG, 0); sc520_mmcr->swtmrcfg = 0;
gd->bus_clk = 33333000; gd->bus_clk = 33333000;
return 0; return 0;

203
board/sc520_spunk/sc520_spunk.c
View File

@ -47,53 +47,54 @@ DECLARE_GLOBAL_DATA_PTR;
static void irq_init(void) static void irq_init(void)
{ {
/* disable global interrupt mode */ /* disable global interrupt mode */
write_mmcr_byte(SC520_PICICR, 0x40); sc520_mmcr->picicr = 0x40;
/* set all irqs to edge */ /* set all irqs to edge */
write_mmcr_byte(SC520_MPICMODE, 0x00); sc520_mmcr->pic_mode[0] = 0x00;
write_mmcr_byte(SC520_SL1PICMODE, 0x00); sc520_mmcr->pic_mode[1] = 0x00;
write_mmcr_byte(SC520_SL2PICMODE, 0x00); sc520_mmcr->pic_mode[2] = 0x00;
/* active low polarity on PIC interrupt pins, /* active low polarity on PIC interrupt pins,
* active high polarity on all other irq pins */ * active high polarity on all other irq pins */
write_mmcr_word(SC520_INTPINPOL, 0x0000); sc520_mmcr->intpinpol = 0x0000;
/* set irq number mapping */ /* set irq number mapping */
write_mmcr_byte(SC520_GPTMR0MAP, SC520_IRQ_DISABLED); /* disable GP timer 0 INT */ sc520_mmcr->gp_tmr_int_map[0] = SC520_IRQ_DISABLED; /* disable GP timer 0 INT */
write_mmcr_byte(SC520_GPTMR1MAP, SC520_IRQ_DISABLED); /* disable GP timer 1 INT */ sc520_mmcr->gp_tmr_int_map[1] = SC520_IRQ_DISABLED; /* disable GP timer 1 INT */
write_mmcr_byte(SC520_GPTMR2MAP, SC520_IRQ_DISABLED); /* disable GP timer 2 INT */ sc520_mmcr->gp_tmr_int_map[2] = SC520_IRQ_DISABLED; /* disable GP timer 2 INT */
write_mmcr_byte(SC520_PIT0MAP, SC520_IRQ0); /* Set PIT timer 0 INT to IRQ0 */ sc520_mmcr->pit_int_map[0] = SC520_IRQ0; /* Set PIT timer 0 INT to IRQ0 */
write_mmcr_byte(SC520_PIT1MAP, SC520_IRQ_DISABLED); /* disable PIT timer 1 INT */ sc520_mmcr->pit_int_map[1] = SC520_IRQ_DISABLED; /* disable PIT timer 1 INT */
write_mmcr_byte(SC520_PIT2MAP, SC520_IRQ_DISABLED); /* disable PIT timer 2 INT */ sc520_mmcr->pit_int_map[2] = SC520_IRQ_DISABLED; /* disable PIT timer 2 INT */
write_mmcr_byte(SC520_PCIINTAMAP, SC520_IRQ_DISABLED); /* disable PCI INT A */ sc520_mmcr->pci_int_map[0] = SC520_IRQ_DISABLED; /* disable PCI INT A */
write_mmcr_byte(SC520_PCIINTBMAP, SC520_IRQ_DISABLED); /* disable PCI INT B */ sc520_mmcr->pci_int_map[1] = SC520_IRQ_DISABLED; /* disable PCI INT B */
write_mmcr_byte(SC520_PCIINTCMAP, SC520_IRQ_DISABLED); /* disable PCI INT C */ sc520_mmcr->pci_int_map[2] = SC520_IRQ_DISABLED; /* disable PCI INT C */
write_mmcr_byte(SC520_PCIINTDMAP, SC520_IRQ_DISABLED); /* disable PCI INT D */ sc520_mmcr->pci_int_map[3] = SC520_IRQ_DISABLED; /* disable PCI INT D */
write_mmcr_byte(SC520_DMABCINTMAP, SC520_IRQ_DISABLED); /* disable DMA INT */ sc520_mmcr->dmabcintmap = SC520_IRQ_DISABLED; /* disable DMA INT */
write_mmcr_byte(SC520_SSIMAP, SC520_IRQ6); /* Set Synchronius serial INT to IRQ6*/ sc520_mmcr->ssimap = SC520_IRQ6; /* Set Synchronius serial INT to IRQ6*/
write_mmcr_byte(SC520_WDTMAP, SC520_IRQ_DISABLED); /* disable Watchdog INT */ sc520_mmcr->wdtmap = SC520_IRQ_DISABLED; /* disable Watchdog INT */
write_mmcr_byte(SC520_RTCMAP, SC520_IRQ8); /* Set RTC int to 8 */ sc520_mmcr->rtcmap = SC520_IRQ8; /* Set RTC int to 8 */
write_mmcr_byte(SC520_WPVMAP, SC520_IRQ_DISABLED); /* disable write protect INT */ sc520_mmcr->wpvmap = SC520_IRQ_DISABLED; /* disable write protect INT */
write_mmcr_byte(SC520_ICEMAP, SC520_IRQ1); /* Set ICE Debug Serielport INT to IRQ1 */ sc520_mmcr->icemap = SC520_IRQ1; /* Set ICE Debug Serielport INT to IRQ1 */
write_mmcr_byte(SC520_FERRMAP,SC520_IRQ13); /* Set FP error INT to IRQ13 */ sc520_mmcr->ferrmap = SC520_IRQ13; /* Set FP error INT to IRQ13 */
write_mmcr_byte(SC520_UART1MAP, SC520_IRQ4); /* Set internal UART2 INT to IRQ4 */
write_mmcr_byte(SC520_UART2MAP, SC520_IRQ3); /* Set internal UART2 INT to IRQ3 */
write_mmcr_byte(SC520_GP0IMAP, SC520_IRQ7); /* Set GPIRQ0 (PC-Card AUX IRQ) to IRQ7 */ sc520_mmcr->uart_int_map[0] = SC520_IRQ4; /* Set internal UART1 INT to IRQ4 */
write_mmcr_byte(SC520_GP1IMAP, SC520_IRQ14); /* Set GPIRQ1 (CF IRQ) to IRQ14 */ sc520_mmcr->uart_int_map[1] = SC520_IRQ3; /* Set internal UART2 INT to IRQ3 */
write_mmcr_byte(SC520_GP3IMAP, SC520_IRQ5); /* Set GPIRQ3 ( CAN IRQ ) ti IRQ5 */
write_mmcr_byte(SC520_GP4IMAP, SC520_IRQ_DISABLED); /* disbale GIRQ4 ( IRR IRQ ) */
write_mmcr_byte(SC520_GP5IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ5 */
write_mmcr_byte(SC520_GP6IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ6 */
write_mmcr_byte(SC520_GP7IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ7 */
write_mmcr_byte(SC520_GP8IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ8 */
write_mmcr_byte(SC520_GP9IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ9 */
write_mmcr_byte(SC520_GP2IMAP, SC520_IRQ_DISABLED); /* disable GPIRQ2 */
write_mmcr_byte(SC520_GP10IMAP,SC520_IRQ_DISABLED); /* disable GPIRQ10 */
write_mmcr_word(SC520_PCIHOSTMAP, 0x11f); /* Map PCI hostbridge INT to NMI */ sc520_mmcr->gp_int_map[0] = SC520_IRQ7; /* Set GPIRQ0 (PC-Card AUX IRQ) to IRQ7 */
write_mmcr_word(SC520_ECCMAP, 0x100); /* Map SDRAM ECC failure INT to NMI */ sc520_mmcr->gp_int_map[1] = SC520_IRQ14; /* Set GPIRQ1 (CF IRQ) to IRQ14 */
sc520_mmcr->gp_int_map[3] = SC520_IRQ5; /* Set GPIRQ3 ( CAN IRQ ) ti IRQ5 */
sc520_mmcr->gp_int_map[4] = SC520_IRQ_DISABLED; /* disbale GIRQ4 ( IRR IRQ ) */
sc520_mmcr->gp_int_map[5] = SC520_IRQ_DISABLED; /* disable GPIRQ5 */
sc520_mmcr->gp_int_map[6] = SC520_IRQ_DISABLED; /* disable GPIRQ6 */
sc520_mmcr->gp_int_map[7] = SC520_IRQ_DISABLED; /* disable GPIRQ7 */
sc520_mmcr->gp_int_map[8] = SC520_IRQ_DISABLED; /* disable GPIRQ8 */
sc520_mmcr->gp_int_map[9] = SC520_IRQ_DISABLED; /* disable GPIRQ9 */
sc520_mmcr->gp_int_map[2] = SC520_IRQ_DISABLED; /* disable GPIRQ2 */
sc520_mmcr->gp_int_map[10] = SC520_IRQ_DISABLED; /* disable GPIRQ10 */
sc520_mmcr->pcihostmap = 0x11f; /* Map PCI hostbridge INT to NMI */
sc520_mmcr->eccmap = 0x100; /* Map SDRAM ECC failure INT to NMI */
} }
@ -101,7 +102,7 @@ static void irq_init(void)
/* PCI stuff */ /* PCI stuff */
static void pci_sc520_spunk_fixup_irq(struct pci_controller *hose, pci_dev_t dev) static void pci_sc520_spunk_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
{ {
int version = read_mmcr_byte(SC520_SYSINFO); int version = sc520_mmcr->sysinfo;
/* a configurable lists of irqs to steal /* a configurable lists of irqs to steal
* when we need one (a board with more pci interrupt pins * when we need one (a board with more pci interrupt pins
@ -255,41 +256,41 @@ static void bus_init(void)
* ?? Hyglo version 0.97 (small board) * ?? Hyglo version 0.97 (small board)
* 10 Spunk board * 10 Spunk board
*/ */
int version = read_mmcr_byte(SC520_SYSINFO); int version = sc520_mmcr->sysinfo;
if (version) { if (version) {
/* set up the GP IO pins (for the Spunk board) */ /* set up the GP IO pins (for the Spunk board) */
write_mmcr_word(SC520_PIOPFS31_16, 0xfff0); /* set the GPIO pin function 31-16 reg */ sc520_mmcr->piopfs31_16 = 0xfff0; /* set the GPIO pin function 31-16 reg */
write_mmcr_word(SC520_PIOPFS15_0, 0x000f); /* set the GPIO pin function 15-0 reg */ sc520_mmcr->piopfs15_0 = 0x000f; /* set the GPIO pin function 15-0 reg */
write_mmcr_word(SC520_PIODIR31_16, 0x000f); /* set the GPIO direction 31-16 reg */ sc520_mmcr->piodir31_16 = 0x000f; /* set the GPIO direction 31-16 reg */
write_mmcr_word(SC520_PIODIR15_0, 0x1ff0); /* set the GPIO direction 15-0 reg */ sc520_mmcr->piodir15_0 = 0x1ff0; /* set the GPIO direction 15-0 reg */
write_mmcr_byte(SC520_CSPFS, 0xc0); /* set the CS pin function reg */ sc520_mmcr->cspfs = 0xc0; /* set the CS pin function reg */
write_mmcr_byte(SC520_CLKSEL, 0x70); sc520_mmcr->clksel = 0x70;
write_mmcr_word(SC520_PIOCLR31_16, 0x0003); /* reset SSI chip-selects */ sc520_mmcr->pioclr31_16 = 0x0003; /* reset SSI chip-selects */
write_mmcr_word(SC520_PIOSET31_16, 0x000c); sc520_mmcr->pioset31_16 = 0x000c;
} else { } else {
/* set up the GP IO pins (for the Hyglo board) */ /* set up the GP IO pins (for the Hyglo board) */
write_mmcr_word(SC520_PIOPFS31_16, 0xffc0); /* set the GPIO pin function 31-16 reg */ sc520_mmcr->piopfs31_16 = 0xffc0; /* set the GPIO pin function 31-16 reg */
write_mmcr_word(SC520_PIOPFS15_0, 0x1e7f); /* set the GPIO pin function 15-0 reg */ sc520_mmcr->piopfs15_0 = 0x1e7f; /* set the GPIO pin function 15-0 reg */
write_mmcr_word(SC520_PIODIR31_16, 0x003f); /* set the GPIO direction 31-16 reg */ sc520_mmcr->piodir31_16 = 0x003f; /* set the GPIO direction 31-16 reg */
write_mmcr_word(SC520_PIODIR15_0, 0xe180); /* set the GPIO direction 15-0 reg */ sc520_mmcr->piodir15_0 = 0xe180; /* set the GPIO direction 15-0 reg */
write_mmcr_byte(SC520_CSPFS, 0x00); /* set the CS pin function reg */ sc520_mmcr->cspfs = 0x00; /* set the CS pin function reg */
write_mmcr_byte(SC520_CLKSEL, 0x70); sc520_mmcr->clksel = 0x70;
write_mmcr_word(SC520_PIOCLR15_0, 0x0180); /* reset SSI chip-selects */ sc520_mmcr->pioclr15_0 = 0x0180; /* reset SSI chip-selects */
} }
write_mmcr_byte(SC520_GPCSRT, 1); /* set the GP CS offset */ sc520_mmcr->gpcsrt = 1; /* set the GP CS offset */
write_mmcr_byte(SC520_GPCSPW, 3); /* set the GP CS pulse width */ sc520_mmcr->gpcspw = 3; /* set the GP CS pulse width */
write_mmcr_byte(SC520_GPCSOFF, 1); /* set the GP CS offset */ sc520_mmcr->gpcsoff = 1; /* set the GP CS offset */
write_mmcr_byte(SC520_GPRDW, 3); /* set the RD pulse width */ sc520_mmcr->gprdw = 3; /* set the RD pulse width */
write_mmcr_byte(SC520_GPRDOFF, 1); /* set the GP RD offset */ sc520_mmcr->gprdoff = 1; /* set the GP RD offset */
write_mmcr_byte(SC520_GPWRW, 3); /* set the GP WR pulse width */ sc520_mmcr->gpwrw = 3; /* set the GP WR pulse width */
write_mmcr_byte(SC520_GPWROFF, 1); /* set the GP WR offset */ sc520_mmcr->gpwroff = 1; /* set the GP WR offset */
write_mmcr_word(SC520_BOOTCSCTL, 0x0407); /* set up timing of BOOTCS */ sc520_mmcr->bootcsctl = 0x0407; /* set up timing of BOOTCS */
/* adjust the memory map: /* adjust the memory map:
* by default the first 256MB (0x00000000 - 0x0fffffff) is mapped to SDRAM * by default the first 256MB (0x00000000 - 0x0fffffff) is mapped to SDRAM
@ -298,17 +299,17 @@ static void bus_init(void)
/* bootcs */ /* bootcs */
write_mmcr_long(SC520_PAR12, 0x8bffe800); sc520_mmcr->par[12] = 0x8bffe800;
/* IDE0 = GPCS6 1f0-1f7 */ /* IDE0 = GPCS6 1f0-1f7 */
write_mmcr_long(SC520_PAR3, 0x380801f0); sc520_mmcr->par[3] = 0x380801f0;
/* IDE1 = GPCS7 3f6 */ /* IDE1 = GPCS7 3f6 */
write_mmcr_long(SC520_PAR4, 0x3c0003f6); sc520_mmcr->par[4] = 0x3c0003f6;
asm ("wbinvd\n"); /* Flush cache, req. after setting the unchached attribute ona PAR */ asm ("wbinvd\n"); /* Flush cache, req. after setting the unchached attribute ona PAR */
write_mmcr_byte(SC520_ADDDECCTL, read_mmcr_byte(SC520_ADDDECCTL) & ~(UART2_DIS|UART1_DIS)); sc520_mmcr->adddecctl = sc520_mmcr->adddecctl & ~(UART2_DIS|UART1_DIS);
} }
@ -361,7 +362,7 @@ u32 isa_map_rom(u32 bus_addr, int size)
printf ("setting PAR11 to %x\n", par); printf ("setting PAR11 to %x\n", par);
/* Map rom 0x10000 with PAR1 */ /* Map rom 0x10000 with PAR1 */
write_mmcr_long(SC520_PAR11, par); sc520_mmcr->par[11] = par;
return bus_addr; return bus_addr;
} }
@ -373,8 +374,8 @@ u32 isa_map_rom(u32 bus_addr, int size)
void isa_unmap_rom(u32 addr) void isa_unmap_rom(u32 addr)
{ {
printf("isa_unmap_rom asked to unmap %x", addr); printf("isa_unmap_rom asked to unmap %x", addr);
if ((addr>>12) == (read_mmcr_long(SC520_PAR11)&0x3ffff)) { if ((addr>>12) == (sc520_mmcr->par[11] & 0x3ffff)) {
write_mmcr_long(SC520_PAR11, 0); sc520_mmcr->par[11] = 0;
printf(" done\n"); printf(" done\n");
return; return;
} }
@ -410,7 +411,7 @@ u32 pci_get_rom_window(struct pci_controller *hose, int size)
printf ("setting PAR1 to %x\n", par); printf ("setting PAR1 to %x\n", par);
/* Map rom 0x10000 with PAR1 */ /* Map rom 0x10000 with PAR1 */
write_mmcr_long(SC520_PAR1, par); sc520_mmcr->par[1] = par;
return PCI_ROM_TEMP_SPACE; return PCI_ROM_TEMP_SPACE;
} }
@ -423,7 +424,7 @@ void pci_remove_rom_window(struct pci_controller *hose, u32 addr)
{ {
printf("pci_remove_rom_window: %x", addr); printf("pci_remove_rom_window: %x", addr);
if (addr == PCI_ROM_TEMP_SPACE) { if (addr == PCI_ROM_TEMP_SPACE) {
write_mmcr_long(SC520_PAR1, 0); sc520_mmcr->par[1] = 0;
printf(" done\n"); printf(" done\n");
return; return;
} }
@ -441,11 +442,10 @@ void pci_remove_rom_window(struct pci_controller *hose, u32 addr)
int pci_enable_legacy_video_ports(struct pci_controller *hose) int pci_enable_legacy_video_ports(struct pci_controller *hose)
{ {
/* Map video memory to 0xa0000*/ /* Map video memory to 0xa0000*/
write_mmcr_long(SC520_PAR0, 0x7200400a); sc520_mmcr->par[0] = 0x7200400a;
/* forward all I/O accesses to PCI */ /* forward all I/O accesses to PCI */
write_mmcr_byte(SC520_ADDDECCTL, sc520_mmcr->adddecctl = sc520_mmcr->adddecctl | IO_HOLE_DEST_PCI;
read_mmcr_byte(SC520_ADDDECCTL) | IO_HOLE_DEST_PCI);
/* so we map away all io ports to pci (only way to access pci io /* so we map away all io ports to pci (only way to access pci io
@ -455,22 +455,22 @@ int pci_enable_legacy_video_ports(struct pci_controller *hose)
*/ */
/* bring 0x100 - 0x2f7 back to ISA using PAR5 */ /* bring 0x100 - 0x2f7 back to ISA using PAR5 */
write_mmcr_long(SC520_PAR5, 0x31f70100); sc520_mmcr->par[5] = 0x31f70100;
/* com2 use 2f8-2ff */ /* com2 use 2f8-2ff */
/* bring 0x300 - 0x3af back to ISA using PAR7 */ /* bring 0x300 - 0x3af back to ISA using PAR7 */
write_mmcr_long(SC520_PAR7, 0x30af0300); sc520_mmcr->par[7] = 0x30af0300;
/* vga use 3b0-3bb */ /* vga use 3b0-3bb */
/* bring 0x3bc - 0x3bf back to ISA using PAR8 */ /* bring 0x3bc - 0x3bf back to ISA using PAR8 */
write_mmcr_long(SC520_PAR8, 0x300303bc); sc520_mmcr->par[8] = 0x300303bc;
/* vga use 3c0-3df */ /* vga use 3c0-3df */
/* bring 0x3e0 - 0x3f7 back to ISA using PAR9 */ /* bring 0x3e0 - 0x3f7 back to ISA using PAR9 */
write_mmcr_long(SC520_PAR9, 0x301703e0); sc520_mmcr->par[9] = 0x301703e0;
/* com1 use 3f8-3ff */ /* com1 use 3f8-3ff */
@ -489,12 +489,12 @@ int board_init(void)
irq_init(); irq_init();
/* max drive current on SDRAM */ /* max drive current on SDRAM */
write_mmcr_word(SC520_DSCTL, 0x0100); sc520_mmcr->dsctl = 0x0100;
/* enter debug mode after next reset (only if jumper is also set) */ /* enter debug mode after next reset (only if jumper is also set) */
write_mmcr_byte(SC520_RESCFG, 0x08); sc520_mmcr->rescfg = 0x08;
/* configure the software timer to 33.000MHz */ /* configure the software timer to 33.000MHz */
write_mmcr_byte(SC520_SWTMRCFG, 1); sc520_mmcr->swtmrcfg = 1;
gd->bus_clk = 33000000; gd->bus_clk = 33000000;
return 0; return 0;
@ -508,17 +508,15 @@ int dram_init(void)
void show_boot_progress(int val) void show_boot_progress(int val)
{ {
int version = read_mmcr_byte(SC520_SYSINFO); int version = sc520_mmcr->sysinfo;
if (val < -32) val = -1; /* let things compatible */ if (val < -32) val = -1; /* let things compatible */
if (version == 0) { if (version == 0) {
/* PIO31-PIO16 Data */ /* PIO31-PIO16 Data */
write_mmcr_word(SC520_PIODATA31_16, sc520_mmcr->piodata31_16 = (sc520_mmcr->piodata31_16 & 0xffc0) | ((val&0x7e)>>1); /* 0x1f8 >> 3 */
(read_mmcr_word(SC520_PIODATA31_16) & 0xffc0)| ((val&0x7e)>>1)); /* 0x1f8 >> 3 */
/* PIO0-PIO15 Data */ /* PIO0-PIO15 Data */
write_mmcr_word(SC520_PIODATA15_0, sc520_mmcr->piodata15_0 = (sc520_mmcr->piodata15_0 & 0x1fff)| ((val&0x7)<<13);
(read_mmcr_word(SC520_PIODATA15_0) & 0x1fff)| ((val&0x7)<<13));
} else { } else {
/* newer boards use PIO4-PIO12 */ /* newer boards use PIO4-PIO12 */
/* PIO0-PIO15 Data */ /* PIO0-PIO15 Data */
@ -527,8 +525,7 @@ void show_boot_progress(int val)
#else #else
val = (val & 0x007) | ((val & 0x07e) << 2); val = (val & 0x007) | ((val & 0x07e) << 2);
#endif #endif
write_mmcr_word(SC520_PIODATA15_0, sc520_mmcr->piodata15_0 = (sc520_mmcr->piodata15_0 & 0xe00f) | ((val&0x01ff)<<4);
(read_mmcr_word(SC520_PIODATA15_0) & 0xe00f) | ((val&0x01ff)<<4));
} }
} }
@ -536,7 +533,7 @@ void show_boot_progress(int val)
int last_stage_init(void) int last_stage_init(void)
{ {
int version = read_mmcr_byte(SC520_SYSINFO); int version = sc520_mmcr->sysinfo;
printf("Omicron Ceti SC520 Spunk revision %x\n", version); printf("Omicron Ceti SC520 Spunk revision %x\n", version);
@ -587,30 +584,30 @@ int last_stage_init(void)
void ssi_chip_select(int dev) void ssi_chip_select(int dev)
{ {
int version = read_mmcr_byte(SC520_SYSINFO); int version = sc520_mmcr->sysinfo;
if (version) { if (version) {
/* Spunk board: EEPROM and CAN are actove-low, TEMP and AUX are active high */ /* Spunk board: EEPROM and CAN are actove-low, TEMP and AUX are active high */
switch (dev) { switch (dev) {
case 1: /* EEPROM */ case 1: /* EEPROM */
write_mmcr_word(SC520_PIOCLR31_16, 0x0004); sc520_mmcr->pioclr31_16 = 0x0004;
break; break;
case 2: /* Temp Probe */ case 2: /* Temp Probe */
write_mmcr_word(SC520_PIOSET31_16, 0x0002); sc520_mmcr->pioset31_16 = 0x0002;
break; break;
case 3: /* CAN */ case 3: /* CAN */
write_mmcr_word(SC520_PIOCLR31_16, 0x0008); sc520_mmcr->pioclr31_16 = 0x0008;
break; break;
case 4: /* AUX */ case 4: /* AUX */
write_mmcr_word(SC520_PIOSET31_16, 0x0001); sc520_mmcr->pioset31_16 = 0x0001;
break; break;
case 0: case 0:
write_mmcr_word(SC520_PIOCLR31_16, 0x0003); sc520_mmcr->pioclr31_16 = 0x0003;
write_mmcr_word(SC520_PIOSET31_16, 0x000c); sc520_mmcr->pioset31_16 = 0x000c;
break; break;
default: default:
@ -622,15 +619,15 @@ void ssi_chip_select(int dev)
switch (dev) { switch (dev) {
case 1: /* EEPROM */ case 1: /* EEPROM */
write_mmcr_word(SC520_PIOSET15_0, 0x0100); sc520_mmcr->pioset15_0 = 0x0100;
break; break;
case 2: /* Temp Probe */ case 2: /* Temp Probe */
write_mmcr_word(SC520_PIOSET15_0, 0x0080); sc520_mmcr->pioset15_0 = 0x0080;
break; break;
case 0: case 0:
write_mmcr_word(SC520_PIOCLR15_0, 0x0180); sc520_mmcr->pioclr15_0 = 0x0180;
break; break;
default: default:
@ -669,9 +666,7 @@ int mw_eeprom_write(int x, int offset, uchar *buffer, int len)
void spi_init_f(void) void spi_init_f(void)
{ {
read_mmcr_byte(SC520_SYSINFO) ? sc520_mmcr->sysinfo ? spi_eeprom_probe(1) : mw_eeprom_probe(1);
spi_eeprom_probe(1) :
mw_eeprom_probe(1);
} }
@ -686,7 +681,7 @@ ssize_t spi_read(uchar *addr, int alen, uchar *buffer, int len)
offset |= addr[i]; offset |= addr[i];
} }
return read_mmcr_byte(SC520_SYSINFO) ? return sc520_mmcr->sysinfo ?
spi_eeprom_read(1, offset, buffer, len) : spi_eeprom_read(1, offset, buffer, len) :
mw_eeprom_read(1, offset, buffer, len); mw_eeprom_read(1, offset, buffer, len);
} }
@ -702,7 +697,7 @@ ssize_t spi_write(uchar *addr, int alen, uchar *buffer, int len)
offset |= addr[i]; offset |= addr[i];
} }
return read_mmcr_byte(SC520_SYSINFO) ? return sc520_mmcr->sysinfo ?
spi_eeprom_write(1, offset, buffer, len) : spi_eeprom_write(1, offset, buffer, len) :
mw_eeprom_write(1, offset, buffer, len); mw_eeprom_write(1, offset, buffer, len);
} }

71
cpu/i386/sc520/sc520.c
View File

@ -33,75 +33,35 @@ DECLARE_GLOBAL_DATA_PTR;
/* /*
* utility functions for boards based on the AMD sc520 * utility functions for boards based on the AMD sc520
* *
* void write_mmcr_byte(u16 mmcr, u8 data)
* void write_mmcr_word(u16 mmcr, u16 data)
* void write_mmcr_long(u16 mmcr, u32 data)
*
* u8 read_mmcr_byte(u16 mmcr)
* u16 read_mmcr_word(u16 mmcr)
* u32 read_mmcr_long(u16 mmcr)
*
* void init_sc520(void) * void init_sc520(void)
* unsigned long init_sc520_dram(void) * unsigned long init_sc520_dram(void)
*/ */
static u32 mmcr_base= 0xfffef000; volatile sc520_mmcr_t *sc520_mmcr = (sc520_mmcr_t *)0xfffef000;
void write_mmcr_byte(u16 mmcr, u8 data)
{
writeb(data, mmcr+mmcr_base);
}
void write_mmcr_word(u16 mmcr, u16 data)
{
writew(data, mmcr+mmcr_base);
}
void write_mmcr_long(u16 mmcr, u32 data)
{
writel(data, mmcr+mmcr_base);
}
u8 read_mmcr_byte(u16 mmcr)
{
return readb(mmcr+mmcr_base);
}
u16 read_mmcr_word(u16 mmcr)
{
return readw(mmcr+mmcr_base);
}
u32 read_mmcr_long(u16 mmcr)
{
return readl(mmcr+mmcr_base);
}
void init_sc520(void) void init_sc520(void)
{ {
/* Set the UARTxCTL register at it's slower, /* Set the UARTxCTL register at it's slower,
* baud clock giving us a 1.8432 MHz reference * baud clock giving us a 1.8432 MHz reference
*/ */
write_mmcr_byte(SC520_UART1CTL, 7); sc520_mmcr->uart1ctl = 0x07;
write_mmcr_byte(SC520_UART2CTL, 7); sc520_mmcr->uart2ctl = 0x07;
/* first set the timer pin mapping */ /* first set the timer pin mapping */
write_mmcr_byte(SC520_CLKSEL, 0x72); /* no clock frequency selected, use 1.1892MHz */ sc520_mmcr->clksel = 0x72; /* no clock frequency selected, use 1.1892MHz */
/* enable PCI bus arbitrer */ /* enable PCI bus arbitrer */
write_mmcr_byte(SC520_SYSARBCTL,0x02); /* enable concurrent mode */ sc520_mmcr->sysarbctl = 0x02; /* enable concurrent mode */
write_mmcr_word(SC520_SYSARBMENB,0x1f); /* enable external grants */
write_mmcr_word(SC520_HBCTL,0x04); /* enable posted-writes */
sc520_mmcr->sysarbmenb = 0x1f; /* enable external grants */
sc520_mmcr->hbctl = 0x04; /* enable posted-writes */
if (CONFIG_SYS_SC520_HIGH_SPEED) { if (CONFIG_SYS_SC520_HIGH_SPEED) {
write_mmcr_byte(SC520_CPUCTL, 0x2); /* set it to 133 MHz and write back */ sc520_mmcr->cpuctl = 0x02; /* set it to 133 MHz and write back */
gd->cpu_clk = 133000000; gd->cpu_clk = 133000000;
printf("## CPU Speed set to 133MHz\n"); printf("## CPU Speed set to 133MHz\n");
} else { } else {
write_mmcr_byte(SC520_CPUCTL, 1); /* set CPU to 100 MHz and write back cache */ sc520_mmcr->cpuctl = 0x01; /* set it to 100 MHz and write back */
printf("## CPU Speed set to 100MHz\n"); printf("## CPU Speed set to 100MHz\n");
gd->cpu_clk = 100000000; gd->cpu_clk = 100000000;
} }
@ -114,7 +74,7 @@ void init_sc520(void)
"loop 0b\n": : : "ecx"); "loop 0b\n": : : "ecx");
/* turn on the SDRAM write buffer */ /* turn on the SDRAM write buffer */
write_mmcr_byte(SC520_DBCTL, 0x11); sc520_mmcr->dbctl = 0x11;
/* turn on the cache and disable write through */ /* turn on the cache and disable write through */
asm("movl %%cr0, %%eax\n" asm("movl %%cr0, %%eax\n"
@ -156,10 +116,9 @@ unsigned long init_sc520_dram(void)
val = 3; /* 62.4us */ val = 3; /* 62.4us */
} }
write_mmcr_byte(SC520_DRCCTL, (read_mmcr_byte(SC520_DRCCTL) & 0xcf) | (val<<4)); sc520_mmcr->drcctl = (sc520_mmcr->drcctl & 0xcf) | (val<<4);
val = read_mmcr_byte(SC520_DRCTMCTL); val = sc520_mmcr->drctmctl & 0xf0;
val &= 0xf0;
if (cas_precharge_delay==3) { if (cas_precharge_delay==3) {
val |= 0x04; /* 3T */ val |= 0x04; /* 3T */
@ -174,12 +133,12 @@ unsigned long init_sc520_dram(void)
} else { } else {
val |= 1; val |= 1;
} }
write_mmcr_byte(SC520_DRCTMCTL, val); sc520_mmcr->drctmctl = val;
#endif #endif
/* We read-back the configuration of the dram /* We read-back the configuration of the dram
* controller that the assembly code wrote */ * controller that the assembly code wrote */
dram_ctrl = read_mmcr_long(SC520_DRCBENDADR); dram_ctrl = sc520_mmcr->drcbendadr;
bd->bi_dram[0].start = 0; bd->bi_dram[0].start = 0;
if (dram_ctrl & 0x80) { if (dram_ctrl & 0x80) {
@ -232,7 +191,7 @@ void reset_cpu(ulong addr)
{ {
printf("Resetting using SC520 MMCR\n"); printf("Resetting using SC520 MMCR\n");
/* Write a '1' to the SYS_RST of the RESCFG MMCR */ /* Write a '1' to the SYS_RST of the RESCFG MMCR */
write_mmcr_word(SC520_RESCFG, 0x0001); sc520_mmcr->rescfg = 0x01;
/* NOTREACHED */ /* NOTREACHED */
} }

62
cpu/i386/sc520/sc520_pci.c
View File

@ -33,23 +33,23 @@ static struct {
u16 level_reg; u16 level_reg;
u8 level_bit; u8 level_bit;
} sc520_irq[] = { } sc520_irq[] = {
{ SC520_IRQ0, SC520_MPICMODE, 0x01 }, { SC520_IRQ0, 0, 0x01 },
{ SC520_IRQ1, SC520_MPICMODE, 0x02 }, { SC520_IRQ1, 0, 0x02 },
{ SC520_IRQ2, SC520_SL1PICMODE, 0x02 }, { SC520_IRQ2, 1, 0x02 },
{ SC520_IRQ3, SC520_MPICMODE, 0x08 }, { SC520_IRQ3, 0, 0x08 },
{ SC520_IRQ4, SC520_MPICMODE, 0x10 }, { SC520_IRQ4, 0, 0x10 },
{ SC520_IRQ5, SC520_MPICMODE, 0x20 }, { SC520_IRQ5, 0, 0x20 },
{ SC520_IRQ6, SC520_MPICMODE, 0x40 }, { SC520_IRQ6, 0, 0x40 },
{ SC520_IRQ7, SC520_MPICMODE, 0x80 }, { SC520_IRQ7, 0, 0x80 },
{ SC520_IRQ8, SC520_SL1PICMODE, 0x01 }, { SC520_IRQ8, 1, 0x01 },
{ SC520_IRQ9, SC520_SL1PICMODE, 0x02 }, { SC520_IRQ9, 1, 0x02 },
{ SC520_IRQ10, SC520_SL1PICMODE, 0x04 }, { SC520_IRQ10, 1, 0x04 },
{ SC520_IRQ11, SC520_SL1PICMODE, 0x08 }, { SC520_IRQ11, 1, 0x08 },
{ SC520_IRQ12, SC520_SL1PICMODE, 0x10 }, { SC520_IRQ12, 1, 0x10 },
{ SC520_IRQ13, SC520_SL1PICMODE, 0x20 }, { SC520_IRQ13, 1, 0x20 },
{ SC520_IRQ14, SC520_SL1PICMODE, 0x40 }, { SC520_IRQ14, 1, 0x40 },
{ SC520_IRQ15, SC520_SL1PICMODE, 0x80 } { SC520_IRQ15, 1, 0x80 }
}; };
@ -77,34 +77,34 @@ int pci_sc520_set_irq(int pci_pin, int irq)
/* first disable any non-pci interrupt source that use /* first disable any non-pci interrupt source that use
* this level */ * this level */
for (i=SC520_GPTMR0MAP;i<=SC520_GP10IMAP;i++) {
if (i>=SC520_PCIINTAMAP&&i<=SC520_PCIINTDMAP) { /* PCI interrupt mapping (A through D)*/
continue; for (i=0; i<=3 ;i++) {
} if (sc520_mmcr->pci_int_map[i] == sc520_irq[irq].priority)
if (read_mmcr_byte(i) == sc520_irq[irq].priority) { sc520_mmcr->pci_int_map[i] = SC520_IRQ_DISABLED;
write_mmcr_byte(i, SC520_IRQ_DISABLED);
} }
/* GP IRQ interrupt mapping */
for (i=0; i<=10 ;i++) {
if (sc520_mmcr->gp_int_map[i] == sc520_irq[irq].priority)
sc520_mmcr->gp_int_map[i] = SC520_IRQ_DISABLED;
} }
/* Set the trigger to level */ /* Set the trigger to level */
write_mmcr_byte(sc520_irq[irq].level_reg, sc520_mmcr->pic_mode[sc520_irq[irq].level_reg] =
read_mmcr_byte(sc520_irq[irq].level_reg) | sc520_irq[irq].level_bit); sc520_mmcr->pic_mode[sc520_irq[irq].level_reg] | sc520_irq[irq].level_bit;
if (pci_pin < 4) { if (pci_pin < 4) {
/* PCI INTA-INTD */ /* PCI INTA-INTD */
/* route the interrupt */ /* route the interrupt */
write_mmcr_byte(SC520_PCIINTAMAP + pci_pin, sc520_irq[irq].priority); sc520_mmcr->pci_int_map[pci_pin] = sc520_irq[irq].priority;
} else { } else {
/* GPIRQ0-GPIRQ10 used for additional PCI INTS */ /* GPIRQ0-GPIRQ10 used for additional PCI INTS */
write_mmcr_byte(SC520_GP0IMAP + pci_pin - 4, sc520_irq[irq].priority); sc520_mmcr->gp_int_map[pci_pin - 4] = sc520_irq[irq].priority;
/* also set the polarity in this case */ /* also set the polarity in this case */
write_mmcr_word(SC520_INTPINPOL, sc520_mmcr->intpinpol = sc520_mmcr->intpinpol | (1 << (pci_pin-4));
read_mmcr_word(SC520_INTPINPOL) | (1 << (pci_pin-4)));
} }
/* register the pin */ /* register the pin */

28
cpu/i386/sc520/sc520_ssi.c
View File

@ -61,32 +61,34 @@ int ssi_set_interface(int freq, int lsb_first, int inv_clock, int inv_phase)
temp |= PHS_INV_ENB; temp |= PHS_INV_ENB;
} }
write_mmcr_byte(SC520_SSICTL, temp); sc520_mmcr->ssictl = temp;
return 0; return 0;
} }
u8 ssi_txrx_byte(u8 data) u8 ssi_txrx_byte(u8 data)
{ {
write_mmcr_byte(SC520_SSIXMIT, data); sc520_mmcr->ssixmit = data;
while ((read_mmcr_byte(SC520_SSISTA)) & SSISTA_BSY); while (sc520_mmcr->ssista & SSISTA_BSY);
write_mmcr_byte(SC520_SSICMD, SSICMD_CMD_SEL_XMITRCV); sc520_mmcr->ssicmd = SSICMD_CMD_SEL_XMITRCV;
while ((read_mmcr_byte(SC520_SSISTA)) & SSISTA_BSY); while (sc520_mmcr->ssista & SSISTA_BSY);
return read_mmcr_byte(SC520_SSIRCV);
return sc520_mmcr->ssircv;
} }
void ssi_tx_byte(u8 data) void ssi_tx_byte(u8 data)
{ {
write_mmcr_byte(SC520_SSIXMIT, data); sc520_mmcr->ssixmit = data;
while ((read_mmcr_byte(SC520_SSISTA)) & SSISTA_BSY); while (sc520_mmcr->ssista & SSISTA_BSY);
write_mmcr_byte(SC520_SSICMD, SSICMD_CMD_SEL_XMIT); sc520_mmcr->ssicmd = SSICMD_CMD_SEL_XMIT;
} }
u8 ssi_rx_byte(void) u8 ssi_rx_byte(void)
{ {
while ((read_mmcr_byte(SC520_SSISTA)) & SSISTA_BSY); while (sc520_mmcr->ssista & SSISTA_BSY);
write_mmcr_byte(SC520_SSICMD, SSICMD_CMD_SEL_RCV); sc520_mmcr->ssicmd = SSICMD_CMD_SEL_RCV;
while ((read_mmcr_byte(SC520_SSISTA)) & SSISTA_BSY); while (sc520_mmcr->ssista & SSISTA_BSY);
return read_mmcr_byte(SC520_SSIRCV);
return sc520_mmcr->ssircv;
} }

31
cpu/i386/sc520/sc520_timer.c
View File

@ -30,29 +30,29 @@
void sc520_timer_isr(void) void sc520_timer_isr(void)
{ {
/* Ack the GP Timer Interrupt */ /* Ack the GP Timer Interrupt */
write_mmcr_byte (SC520_GPTMRSTA, 0x02); sc520_mmcr->gptmrsta = 0x02;
} }
int timer_init(void) int timer_init(void)
{ {
/* Map GP Timer 1 to Master PIC IR0 */ /* Map GP Timer 1 to Master PIC IR0 */
write_mmcr_byte (SC520_GPTMR1MAP, 0x01); sc520_mmcr->gp_tmr_int_map[1] = 0x01;
/* Disable GP Timers 1 & 2 - Allow configuration writes */ /* Disable GP Timers 1 & 2 - Allow configuration writes */
write_mmcr_word (SC520_GPTMR1CTL, 0x4000); sc520_mmcr->gptmr1ctl = 0x4000;
write_mmcr_word (SC520_GPTMR2CTL, 0x4000); sc520_mmcr->gptmr2ctl = 0x4000;
/* Reset GP Timers 1 & 2 */ /* Reset GP Timers 1 & 2 */
write_mmcr_word (SC520_GPTMR1CNT, 0x0000); sc520_mmcr->gptmr1cnt = 0x0000;
write_mmcr_word (SC520_GPTMR2CNT, 0x0000); sc520_mmcr->gptmr2cnt = 0x0000;
/* Setup GP Timer 2 as a 100kHz (10us) prescaler */ /* Setup GP Timer 2 as a 100kHz (10us) prescaler */
write_mmcr_word (SC520_GPTMR2MAXCMPA, 83); sc520_mmcr->gptmr2maxcmpa = 83;
write_mmcr_word (SC520_GPTMR2CTL, 0xc001); sc520_mmcr->gptmr2ctl = 0xc001;
/* Setup GP Timer 1 as a 1000 Hz (1ms) interrupt generator */ /* Setup GP Timer 1 as a 1000 Hz (1ms) interrupt generator */
write_mmcr_word (SC520_GPTMR1MAXCMPA, 100); sc520_mmcr->gptmr1maxcmpa = 100;
write_mmcr_word (SC520_GPTMR1CTL, 0xe009); sc520_mmcr->gptmr1ctl = 0xe009;
/* Register the SC520 specific timer interrupt handler */ /* Register the SC520 specific timer interrupt handler */
register_timer_isr (sc520_timer_isr); register_timer_isr (sc520_timer_isr);
@ -62,7 +62,7 @@ int timer_init(void)
unmask_irq (0); unmask_irq (0);
/* Clear the GP Timer 1 status register to get the show rolling*/ /* Clear the GP Timer 1 status register to get the show rolling*/
write_mmcr_byte (SC520_GPTMRSTA, 0x02); sc520_mmcr->gptmrsta = 0x02;
return 0; return 0;
} }
@ -71,12 +71,13 @@ void udelay(unsigned long usec)
{ {
int m = 0; int m = 0;
long u; long u;
long temp;
read_mmcr_word (SC520_SWTMRMILLI); temp = sc520_mmcr->swtmrmilli;
read_mmcr_word (SC520_SWTMRMICRO); temp = sc520_mmcr->swtmrmicro;
do { do {
m += read_mmcr_word (SC520_SWTMRMILLI); m += sc520_mmcr->swtmrmilli;
u = read_mmcr_word (SC520_SWTMRMICRO) + (m * 1000); u = sc520_mmcr->swtmrmicro + (m * 1000);
} while (u < usec); } while (u < usec);
} }

413
include/asm-i386/ic/sc520.h
View File

@ -24,179 +24,243 @@
#ifndef _ASM_IC_SC520_H_ #ifndef _ASM_IC_SC520_H_
#define _ASM_IC_SC520_H_ 1 #define _ASM_IC_SC520_H_ 1
/* Memory mapped configuration registers, MMCR */ #ifndef __ASSEMBLY__
#define SC520_REVID 0x0000 /* ElanSC520 Microcontroller Revision ID Register */
#define SC520_CPUCTL 0x0002 /* Am5x86 CPU Control Register */ void init_sc520(void);
#define SC520_DRCCTL 0x0010 /* SDRAM Control Register */ unsigned long init_sc520_dram(void);
#define SC520_DRCTMCTL 0x0012 /* SDRAM Timing Control Register */
#define SC520_DRCCFG 0x0014 /* SDRAM Bank Configuration Register*/ /* Memory mapped configuration registers */
#define SC520_DRCBENDADR 0x0018 /* SDRAM Bank 0-3 Ending Address Register*/ typedef struct sc520_mmcr {
#define SC520_ECCCTL 0x0020 /* ECC Control Register */ u16 revid; /* ElanSC520 microcontroller revision id */
#define SC520_ECCSTA 0x0021 /* ECC Status Register */ u8 cpuctl; /* am5x86 CPU control */
#define SC520_ECCCKBPOS 0x0022 /* ECC Check Bit Position Register */
#define SC520_ECCSBADD 0x0024 /* ECC Single-Bit Error Address Register */ u8 pad_0x003[0x0d];
u8 drcctl; /* SDRAM control */
u8 pad_0x011[0x01];
u8 drctmctl; /* SDRAM timing control */
u8 pad_0x013[0x01];
u16 drccfg; /* SDRAM bank configuration*/
u8 pad_0x016[0x02];
u32 drcbendadr; /* SDRAM bank 0-3 ending address*/
u8 pad_0x01c[0x04];
u8 eccctl; /* ECC control */
u8 eccsta; /* ECC status */
u8 eccckbpos; /* ECC check bit position */
u8 ecccktest; /* ECC Check Code Test */
u32 eccsbadd; /* ECC single-bit error address */
u32 eccmbadd; /* ECC multi-bit error address */
u8 pad_0x02c[0x14];
u8 dbctl; /* SDRAM buffer control */
u8 pad_0x041[0x0f];
u16 bootcsctl; /* /BOOTCS control */
u8 pad_0x052[0x02];
u16 romcs1ctl; /* /ROMCS1 control */
u16 romcs2ctl; /* /ROMCS2 control */
u8 pad_0x058[0x08];
u16 hbctl; /* host bridge control */
u16 hbtgtirqctl; /* host bridge target interrupt control */
u16 hbtgtirqsta; /* host bridge target interrupt status */
u16 hbmstirqctl; /* host bridge target interrupt control */
u16 hbmstirqsta; /* host bridge master interrupt status */
u8 pad_0x06a[0x02];
u32 mstintadd; /* host bridge master interrupt address */
u8 sysarbctl; /* system arbiter control */
u8 pciarbsta; /* PCI bus arbiter status */
u16 sysarbmenb; /* system arbiter master enable */
u32 arbprictl; /* arbiter priority control */
u8 pad_0x078[0x08];
u8 adddecctl; /* address decode control */
u8 pad_0x081[0x01];
u16 wpvsta; /* write-protect violation status */
u8 pad_0x084[0x04];
u32 par[16]; /* programmable address regions */
u8 pad_0x0c8[0x0b38];
u8 gpecho; /* GP echo mode */
u8 gpcsdw; /* GP chip select data width */
u16 gpcsqual; /* GP chip select qualification */
u8 pad_0xc04[0x4];
u8 gpcsrt; /* GP chip select recovery time */
u8 gpcspw; /* GP chip select pulse width */
u8 gpcsoff; /* GP chip select offset */
u8 gprdw; /* GP read pulse width */
u8 gprdoff; /* GP read offset */
u8 gpwrw; /* GP write pulse width */
u8 gpwroff; /* GP write offset */
u8 gpalew; /* GP ale pulse width */
u8 gpaleoff; /* GP ale offset */
u8 pad_0xc11[0x0f];
u16 piopfs15_0; /* PIO15-PIO0 pin function select */
u16 piopfs31_16; /* PIO31-PIO16 pin function select */
u8 cspfs; /* chip select pin function select */
u8 pad_0xc25[0x01];
u8 clksel; /* clock select */
u8 pad_0xc27[0x01];
u16 dsctl; /* drive strength control */
u16 piodir15_0; /* PIO15-PIO0 direction */
u16 piodir31_16; /* PIO31-PIO16 direction */
u8 pad_0xc2e[0x02];
u16 piodata15_0 ; /* PIO15-PIO0 data */
u16 piodata31_16; /* PIO31-PIO16 data */
u16 pioset15_0; /* PIO15-PIO0 set */
u16 pioset31_16; /* PIO31-PIO16 set */
u16 pioclr15_0; /* PIO15-PIO0 clear */
u16 pioclr31_16; /* PIO31-PIO16 clear */
u8 pad_0xc3c[0x24];
u16 swtmrmilli; /* software timer millisecond count */
u16 swtmrmicro; /* software timer microsecond count */
u8 swtmrcfg; /* software timer configuration */
u8 pad_0xc65[0x0b];
u8 gptmrsta; /* GP timers status register */
u8 pad_0xc71;
u16 gptmr0ctl; /* GP timer 0 mode/control */
u16 gptmr0cnt; /* GP timer 0 count */
u16 gptmr0maxcmpa; /* GP timer 0 maxcount compare A */
u16 gptmr0maxcmpb; /* GP timer 0 maxcount compare B */
u16 gptmr1ctl; /* GP timer 1 mode/control */
u16 gptmr1cnt; /* GP timer 1 count */
u16 gptmr1maxcmpa; /* GP timer 1 maxcount compare A */
u16 gptmr1maxcmpb; /* GP timer 1 maxcount compare B*/
u16 gptmr2ctl; /* GP timer 2 mode/control */
u16 gptmr2cnt; /* GP timer 2 count */
u8 pad_0xc86[0x08];
u16 gptmr2maxcmpa; /* GP timer 2 maxcount compare A */
u8 pad_0xc90[0x20];
u16 wdtmrctl; /* watchdog timer control */
u16 wdtmrcntl; /* watchdog timer count low */
u16 wdtmrcnth; /* watchdog timer count high */
u8 pad_0xcb6[0x0a];
u8 uart1ctl; /* UART 1 general control */
u8 uart1sta; /* UART 1 general status */
u8 uart1fcrshad; /* UART 1 FIFO control shadow */
u8 pad_0xcc3[0x01];
u8 uart2ctl; /* UART 2 general control */
u8 uart2sta; /* UART 2 general status */
u8 uart2fcrshad; /* UART 2 FIFO control shadow */
u8 pad_0xcc7[0x09];
u8 ssictl; /* SSI control */
u8 ssixmit; /* SSI transmit */
u8 ssicmd; /* SSI command */
u8 ssista; /* SSI status */
u8 ssircv; /* SSI receive */
u8 pad_0xcd5[0x2b];
u8 picicr; /* interrupt control */
u8 pad_0xd01[0x01];
u8 pic_mode[3]; /* PIC interrupt mode */
u8 pad_0xd05[0x03];
u16 swint16_1; /* software interrupt 16-1 control */
u8 swint22_17; /* software interrupt 22-17/NMI control */
u8 pad_0xd0b[0x05];
u16 intpinpol; /* interrupt pin polarity */
u8 pad_0xd12[0x02];
u16 pcihostmap; /* PCI host bridge interrupt mapping */
u8 pad_0xd16[0x02];
u16 eccmap; /* ECC interrupt mapping */
u8 gp_tmr_int_map[3]; /* GP timer interrupt mapping */
u8 pad_0xd1d[0x03];
u8 pit_int_map[3]; /* PIT interrupt mapping */
u8 pad_0xd23[0x05];
u8 uart_int_map[2]; /* UART interrupt mapping */
u8 pad_0xd2a[0x06];
u8 pci_int_map[4]; /* PCI interrupt mapping (A through D)*/
u8 pad_0xd34[0x0c];
u8 dmabcintmap; /* DMA buffer chaining interrupt mapping */
u8 ssimap; /* SSI interrupt mapping register */
u8 wdtmap; /* watchdog timer interrupt mapping */
u8 rtcmap; /* RTC interrupt mapping register */
u8 wpvmap; /* write-protect interrupt mapping */
u8 icemap; /* AMDebug JTAG Rx/Tx interrupt mapping */
u8 ferrmap; /* floating point error interrupt mapping */
u8 pad_0xd47[0x09];
u8 gp_int_map[11]; /* GP IRQ interrupt mapping */
u8 pad_0xd5b[0x15];
u8 sysinfo; /* system board information */
u8 pad_0xd71[0x01];
u8 rescfg; /* reset configuration */
u8 pad_0xd73[0x01];
u8 ressta; /* reset status */
u8 pad_0xd75[0x0b];
u8 gpdmactl; /* GP-DMA Control */
u8 gpdmammio; /* GP-DMA memory-mapped I/O */
u16 gpdmaextchmapa; /* GP-DMA resource channel map a */
u16 gpdmaextchmapb; /* GP-DMA resource channel map b */
u8 gp_dma_ext_pg_0; /* GP-DMA channel extended page 0 */
u8 gp_dma_ext_pg_1; /* GP-DMA channel extended page 0 */
u8 gp_dma_ext_pg_2; /* GP-DMA channel extended page 0 */
u8 gp_dma_ext_pg_3; /* GP-DMA channel extended page 0 */
u8 gp_dma_ext_pg_5; /* GP-DMA channel extended page 0 */
u8 gp_dma_ext_pg_6; /* GP-DMA channel extended page 0 */
u8 gp_dma_ext_pg_7; /* GP-DMA channel extended page 0 */
u8 pad_0xd8d[0x03];
u8 gpdmaexttc3; /* GP-DMA channel 3 extender transfer count */
u8 gpdmaexttc5; /* GP-DMA channel 5 extender transfer count */
u8 gpdmaexttc6; /* GP-DMA channel 6 extender transfer count */
u8 gpdmaexttc7; /* GP-DMA channel 7 extender transfer count */
u8 pad_0xd94[0x4];
u8 gpdmabcctl; /* buffer chaining control */
u8 gpdmabcsta; /* buffer chaining status */
u8 gpdmabsintenb; /* buffer chaining interrupt enable */
u8 gpdmabcval; /* buffer chaining valid */
u8 pad_0xd9c[0x04];
u16 gpdmanxtaddl3; /* GP-DMA channel 3 next address low */
u16 gpdmanxtaddh3; /* GP-DMA channel 3 next address high */
u16 gpdmanxtaddl5; /* GP-DMA channel 5 next address low */
u16 gpdmanxtaddh5; /* GP-DMA channel 5 next address high */
u16 gpdmanxtaddl6; /* GP-DMA channel 6 next address low */
u16 gpdmanxtaddh6; /* GP-DMA channel 6 next address high */
u16 gpdmanxtaddl7; /* GP-DMA channel 7 next address low */
u16 gpdmanxtaddh7; /* GP-DMA channel 7 next address high */
u16 gpdmanxttcl3; /* GP-DMA channel 3 next transfer count low */
u16 gpdmanxttch3; /* GP-DMA channel 3 next transfer count high */
u16 gpdmanxttcl5; /* GP-DMA channel 5 next transfer count low */
u16 gpdmanxttch5; /* GP-DMA channel 5 next transfer count high */
u16 gpdmanxttcl6; /* GP-DMA channel 6 next transfer count low */
u16 gpdmanxttch6; /* GP-DMA channel 6 next transfer count high */
u16 gpdmanxttcl7; /* GP-DMA channel 7 next transfer count low */
u16 gpdmanxttch7; /* GP-DMA channel 7 next transfer count high */
u8 pad_0xdc0[0x0240];
} sc520_mmcr_t;
extern volatile sc520_mmcr_t *sc520_mmcr;
#endif
/* MMCR Offsets (required for assembler code */
#define SC520_DBCTL 0x0040 /* SDRAM Buffer Control Register */ #define SC520_DBCTL 0x0040 /* SDRAM Buffer Control Register */
#define SC520_BOOTCSCTL 0x0050 /* /BOOTCS Control Register */
#define SC520_ROMCS1CTL 0x0054 /* /ROMCS1 Control Register */
#define SC520_ROMCS2CTL 0x0056 /* /ROMCS2 Control Register */
#define SC520_HBCTL 0x0060 /* Host Bridge Control Register */
#define SC520_HBTGTIRQCTL 0x0062 /* Host Bridge Target Interrupt Control Register */
#define SC520_HBTGTIRQSTA 0x0064 /* Host Bridge Target Interrupt Status Register */
#define SC520_HBMSTIRQCTL 0x0066 /* Host Bridge Target Interrupt Control Register */
#define SC520_HBMSTIRQSTA 0x0068 /* Host Bridge Master Interrupt Status Register */
#define SC520_MSTINTADD 0x006c /* Host Bridge Master Interrupt Address Register */
#define SC520_SYSARBCTL 0x0070 /* System Arbiter Control Register */
#define SC520_PCIARBSTA 0x0071 /* PCI Bus Arbiter Status Register */
#define SC520_SYSARBMENB 0x0072 /* System Arbiter Master Enable Register */
#define SC520_ARBPRICTL 0x0074 /* Arbiter Priority Control Register */
#define SC520_ADDDECCTL 0x0080 /* Address Decode Control Register */
#define SC520_WPVSTA 0x0082 /* Write-Protect Violation Status Register */
#define SC520_PAR0 0x0088 /* Programmable Address Region 0 Register */
#define SC520_PAR1 0x008c /* Programmable Address Region 1 Register */
#define SC520_PAR2 0x0090 /* Programmable Address Region 2 Register */
#define SC520_PAR3 0x0094 /* Programmable Address Region 3 Register */
#define SC520_PAR4 0x0098 /* Programmable Address Region 4 Register */
#define SC520_PAR5 0x009c /* Programmable Address Region 5 Register */
#define SC520_PAR6 0x00a0 /* Programmable Address Region 6 Register */
#define SC520_PAR7 0x00a4 /* Programmable Address Region 7 Register */
#define SC520_PAR8 0x00a8 /* Programmable Address Region 8 Register */
#define SC520_PAR9 0x00ac /* Programmable Address Region 9 Register */
#define SC520_PAR10 0x00b0 /* Programmable Address Region 10 Register */
#define SC520_PAR11 0x00b4 /* Programmable Address Region 11 Register */
#define SC520_PAR12 0x00b8 /* Programmable Address Region 12 Register */
#define SC520_PAR13 0x00bc /* Programmable Address Region 13 Register */
#define SC520_PAR14 0x00c0 /* Programmable Address Region 14 Register */ #define SC520_PAR14 0x00c0 /* Programmable Address Region 14 Register */
#define SC520_PAR15 0x00c4 /* Programmable Address Region 15 Register */ #define SC520_PAR15 0x00c4 /* Programmable Address Region 15 Register */
#define SC520_GPECHO 0x0c00 /* GP Echo Mode Register */
#define SC520_GPCSDW 0x0c01 /* GP Chip Select Data Width Register */
#define SC520_GPCSQUAL 0x0c02 /* GP Chip Select Qualification Register */
#define SC520_GPCSRT 0x0c08 /* GP Chip Select Recovery Time Register */
#define SC520_GPCSPW 0x0c09 /* GP Chip Select Pulse Width Register */
#define SC520_GPCSOFF 0x0c0a /* GP Chip Select Offset Register */
#define SC520_GPRDW 0x0c0b /* GP Read Pulse Width Register */
#define SC520_GPRDOFF 0x0c0c /* GP Read Offset Register */
#define SC520_GPWRW 0x0c0d /* GP Write Pulse Width Register */
#define SC520_GPWROFF 0x0c0e /* GP Write Offset Register */
#define SC520_GPALEW 0x0c0f /* GP ALE Pulse Width Register */
#define SC520_GPALEOFF 0x0c10 /* GP ALE Offset Register */
#define SC520_PIOPFS15_0 0x0c20 /* PIO15-PIO0 Pin Function Select */
#define SC520_PIOPFS31_16 0x0c22 /* PIO31-PIO16 Pin Function Select */
#define SC520_CSPFS 0x0c24 /* Chip Select Pin Function Select */
#define SC520_CLKSEL 0x0c26 /* Clock Select */
#define SC520_DSCTL 0x0c28 /* Drive Strength Control */
#define SC520_PIODIR15_0 0x0c2a /* PIO15-PIO0 Direction */
#define SC520_PIODIR31_16 0x0c2c /* PIO31-PIO16 Direction */
#define SC520_PIODATA15_0 0x0c30 /* PIO15-PIO0 Data */
#define SC520_PIODATA31_16 0x0c32 /* PIO31-PIO16 Data */
#define SC520_PIOSET15_0 0x0c34 /* PIO15-PIO0 Set */
#define SC520_PIOSET31_16 0x0c36 /* PIO31-PIO16 Set */
#define SC520_PIOCLR15_0 0x0c38 /* PIO15-PIO0 Clear */
#define SC520_PIOCLR31_16 0x0c3a /* PIO31-PIO16 Clear */
#define SC520_SWTMRMILLI 0x0c60 /* Software Timer Millisecond Count */ #define SC520_SWTMRMILLI 0x0c60 /* Software Timer Millisecond Count */
#define SC520_SWTMRMICRO 0x0c62 /* Software Timer Microsecond Count */ #define SC520_SWTMRMICRO 0x0c62 /* Software Timer Microsecond Count */
#define SC520_SWTMRCFG 0x0c64 /* Software Timer Configuration */
#define SC520_GPTMRSTA 0x0c70 /* GP Timers Status Register */
#define SC520_GPTMR0CTL 0x0c72 /* GP Timer 0 Mode/Control Register */
#define SC520_GPTMR0CNT 0x0c74 /* GP Timer 0 Count Register */
#define SC520_GPTMR0MAXCMPA 0x0c76 /* GP Timer 0 Maxcount Compare A Register */
#define SC520_GPTMR0MAXCMPB 0x0c78 /* GP Timer 0 Maxcount Compare B Register */
#define SC520_GPTMR1CTL 0x0c7a /* GP Timer 1 Mode/Control Register */
#define SC520_GPTMR1CNT 0x0c7c /* GP Timer 1 Count Register */
#define SC520_GPTMR1MAXCMPA 0x0c7e /* GP Timer 1 Maxcount Compare Register A */
#define SC520_GPTMR1MAXCMPB 0x0c80 /* GP Timer 1 Maxcount Compare B Register */
#define SC520_GPTMR2CTL 0x0c82 /* GP Timer 2 Mode/Control Register */
#define SC520_GPTMR2CNT 0x0c84 /* GP Timer 2 Count Register */
#define SC520_GPTMR2MAXCMPA 0x0c8e /* GP Timer 2 Maxcount Compare A Register */
#define SC520_WDTMRCTL 0x0cb0 /* Watchdog Timer Control Register */
#define SC520_WDTMRCNTL 0x0cb2 /* Watchdog Timer Count Low Register */
#define SC520_WDTMRCNTH 0x0cb4 /* Watchdog Timer Count High Register */
#define SC520_UART1CTL 0x0cc0 /* UART 1 General Control Register */
#define SC520_UART1STA 0x0cc1 /* UART 1 General Status Register */
#define SC520_UART1FCRSHAD 0x0cc2 /* UART 1 FIFO Control Shadow Register */
#define SC520_UART2CTL 0x0cc4 /* UART 2 General Control Register */
#define SC520_UART2STA 0x0cc5 /* UART 2 General Status Register */
#define SC520_UART2FCRSHAD 0x0cc6 /* UART 2 FIFO Control Shadow Register */
#define SC520_SSICTL 0x0cd0 /* SSI Control */
#define SC520_SSIXMIT 0x0cd1 /* SSI Transmit */
#define SC520_SSICMD 0x0cd2 /* SSI Command */
#define SC520_SSISTA 0x0cd3 /* SSI Status */
#define SC520_SSIRCV 0x0cd4 /* SSI Receive */
#define SC520_PICICR 0x0d00 /* Interrupt Control Register */
#define SC520_MPICMODE 0x0d02 /* Master PIC Interrupt Mode Register */
#define SC520_SL1PICMODE 0x0d03 /* Slave 1 PIC Interrupt Mode Register */
#define SC520_SL2PICMODE 0x0d04 /* Slave 2 PIC Interrupt Mode Register */
#define SC520_SWINT16_1 0x0d08 /* Software Interrupt 16-1 Control Register */
#define SC520_SWINT22_17 0x0d0a /* Software Interrupt 22-17/NMI Control Register */
#define SC520_INTPINPOL 0x0d10 /* Interrupt Pin Polarity Register */
#define SC520_PCIHOSTMAP 0x0d14 /* PCI Host Bridge Interrupt Mappin Register */
#define SC520_ECCMAP 0x0d18 /* ECC Interrupt Mapping Register */
#define SC520_GPTMR0MAP 0x0d1a /* GP Timer 0 Interrupt Mapping Register */
#define SC520_GPTMR1MAP 0x0d1b /* GP Timer 1 Interrupt Mapping Register */
#define SC520_GPTMR2MAP 0x0d1c /* GP Timer 2 Interrupt Mapping Register */
#define SC520_PIT0MAP 0x0d20 /* PIT0 Interrupt Mapping Register */
#define SC520_PIT1MAP 0x0d21 /* PIT1 Interrupt Mapping Register */
#define SC520_PIT2MAP 0x0d22 /* PIT2 Interrupt Mapping Register */
#define SC520_UART1MAP 0x0d28 /* UART 1 Interrupt Mapping Register */
#define SC520_UART2MAP 0x0d29 /* UART 2 Interrupt Mapping Register */
#define SC520_PCIINTAMAP 0x0d30 /* PCI Interrupt A Mapping Register */
#define SC520_PCIINTBMAP 0x0d31 /* PCI Interrupt B Mapping Register */
#define SC520_PCIINTCMAP 0x0d32 /* PCI Interrupt C Mapping Register */
#define SC520_PCIINTDMAP 0x0d33 /* PCI Interrupt D Mapping Register */
#define SC520_DMABCINTMAP 0x0d40 /* DMA Buffer Chaining Interrupt Mapping Register */
#define SC520_SSIMAP 0x0d41 /* SSI Interrupt Mapping Register */
#define SC520_WDTMAP 0x0d42 /* Watchdog Timer Interrupt Mapping Register */
#define SC520_RTCMAP 0x0d43 /* RTC Interrupt Mapping Register */
#define SC520_WPVMAP 0x0d44 /* Write-Protect Interrupt Mapping Register */
#define SC520_ICEMAP 0x0d45 /* AMDebug JTAG RX/TX Interrupt Mapping Register */
#define SC520_FERRMAP 0x0d46 /* Floating Point Error Interrupt Mapping Register */
#define SC520_GP0IMAP 0x0d50 /* GPIRQ0 Interrupt Mapping Register */
#define SC520_GP1IMAP 0x0d51 /* GPIRQ1 Interrupt Mapping Register */
#define SC520_GP2IMAP 0x0d52 /* GPIRQ2 Interrupt Mapping Register */
#define SC520_GP3IMAP 0x0d53 /* GPIRQ3 Interrupt Mapping Register */
#define SC520_GP4IMAP 0x0d54 /* GPIRQ4 Interrupt Mapping Register */
#define SC520_GP5IMAP 0x0d55 /* GPIRQ5 Interrupt Mapping Register */
#define SC520_GP6IMAP 0x0d56 /* GPIRQ6 Interrupt Mapping Register */
#define SC520_GP7IMAP 0x0d57 /* GPIRQ7 Interrupt Mapping Register */
#define SC520_GP8IMAP 0x0d58 /* GPIRQ8 Interrupt Mapping Register */
#define SC520_GP9IMAP 0x0d59 /* GPIRQ9 Interrupt Mapping Register */
#define SC520_GP10IMAP 0x0d5a /* GPIRQ10 Interrupt Mapping Register */
#define SC520_SYSINFO 0x0d70 /* System Board Information Register */
#define SC520_RESCFG 0x0d72 /* Reset Configuration Register */
#define SC520_RESSTA 0x0d74 /* Reset Status Register */
#define SC520_GPDMAMMIO 0x0d81 /* GP-DMA Memory-Mapped I/O Register */
#define SC520_GPDMAEXTCHMAPA 0x0d82 /* GP-DMA Resource Channel Map A */
#define SC520_GPDMAEXTCHMAPB 0x0d84 /* GP-DMA Resource Channel Map B */
#define SC520_GPDMAEXTPG0 0x0d86 /* GP-DMA Channel 0 Extended Page */
#define SC520_GPDMAEXTPG1 0x0d87 /* GP-DMA Channel 1 Extended Page */
#define SC520_GPDMAEXTPG2 0x0d88 /* GP-DMA Channel 2 Extended Page */
#define SC520_GPDMAEXTPG3 0x0d89 /* GP-DMA Channel 3 Extended Page */
#define SC520_GPDMAEXTPG5 0x0d8a /* GP-DMA Channel 5 Extended Page */
#define SC520_GPDMAEXTPG6 0x0d8b /* GP-DMA Channel 6 Extended Page */
#define SC520_GPDMAEXTPG7 0x0d8c /* GP-DMA Channel 7 Extended Page */
#define SC520_GPDMAEXTTC3 0x0d90 /* GP-DMA Channel 3 Extender Transfer count */
#define SC520_GPDMAEXTTC5 0x0d91 /* GP-DMA Channel 5 Extender Transfer count */
#define SC520_GPDMAEXTTC6 0x0d92 /* GP-DMA Channel 6 Extender Transfer count */
#define SC520_GPDMAEXTTC7 0x0d93 /* GP-DMA Channel 7 Extender Transfer count */
#define SC520_GPDMABCCTL 0x0d98 /* Buffer Chaining Control */
#define SC520_GPDMABCSTA 0x0d99 /* Buffer Chaining Status */
#define SC520_GPDMABSINTENB 0x0d9a /* Buffer Chaining Interrupt Enable */
#define SC520_GPDMABCVAL 0x0d9b /* Buffer Chaining Valid */
#define SC520_GPDMANXTADDL3 0x0da0 /* GP-DMA Channel 3 Next Address Low */
#define SC520_GPDMANXTADDH3 0x0da2 /* GP-DMA Channel 3 Next Address High */
#define SC520_GPDMANXTADDL5 0x0da4 /* GP-DMA Channel 5 Next Address Low */
#define SC520_GPDMANXTADDH5 0x0da6 /* GP-DMA Channel 5 Next Address High */
#define SC520_GPDMANXTADDL6 0x0da8 /* GP-DMA Channel 6 Next Address Low */
#define SC520_GPDMANXTADDH6 0x0daa /* GP-DMA Channel 6 Next Address High */
#define SC520_GPDMANXTADDL7 0x0dac /* GP-DMA Channel 7 Next Address Low */
#define SC520_GPDMANXTADDH7 0x0dae /* GP-DMA Channel 7 Next Address High */
#define SC520_GPDMANXTTCL3 0x0db0 /* GP-DMA Channel 3 Next Transfer Count Low */
#define SC520_GPDMANXTTCH3 0x0db2 /* GP-DMA Channel 3 Next Transfer Count High */
#define SC520_GPDMANXTTCL5 0x0db4 /* GP-DMA Channel 5 Next Transfer Count Low */
#define SC520_GPDMANXTTCH5 0x0db6 /* GP-DMA Channel 5 Next Transfer Count High */
#define SC520_GPDMANXTTCL6 0x0db8 /* GP-DMA Channel 6 Next Transfer Count Low */
#define SC520_GPDMANXTTCH6 0x0dba /* GP-DMA Channel 6 Next Transfer Count High */
#define SC520_GPDMANXTTCL7 0x0dbc /* GP-DMA Channel 7 Next Transfer Count Low */
#define SC520_GPDMANXTTCH7 0x0dbe /* GP-DMA Channel 7 Next Transfer Count High */
/* MMCR Register bits (not all of them :) ) */ /* MMCR Register bits (not all of them :) ) */
@ -221,7 +285,6 @@
#define SSISTA_BSY 0x02 /* SSI Busy */ #define SSISTA_BSY 0x02 /* SSI Busy */
#define SSISTA_TC_INT 0x01 /* SSI Transaction Complete Interrupt */ #define SSISTA_TC_INT 0x01 /* SSI Transaction Complete Interrupt */
/* BITS for SC520_ADDDECCTL: */ /* BITS for SC520_ADDDECCTL: */
#define WPV_INT_ENB 0x80 /* Write-Protect Violation Interrupt Enable */ #define WPV_INT_ENB 0x80 /* Write-Protect Violation Interrupt Enable */
#define IO_HOLE_DEST_PCI 0x10 /* I/O Hole Access Destination */ #define IO_HOLE_DEST_PCI 0x10 /* I/O Hole Access Destination */
@ -233,7 +296,6 @@
#define SC520_REG_ADDR 0x00000cf8 #define SC520_REG_ADDR 0x00000cf8
#define SC520_REG_DATA 0x00000cfc #define SC520_REG_DATA 0x00000cfc
#define SC520_ISA_MEM_PHYS 0x00000000 #define SC520_ISA_MEM_PHYS 0x00000000
#define SC520_ISA_MEM_BUS 0x00000000 #define SC520_ISA_MEM_BUS 0x00000000
#define SC520_ISA_MEM_SIZE 0x01000000 #define SC520_ISA_MEM_SIZE 0x01000000
@ -282,15 +344,4 @@
#define SC520_IRQ14 9 #define SC520_IRQ14 9
#define SC520_IRQ15 10 #define SC520_IRQ15 10
/* utility functions */
void write_mmcr_byte(u16 mmcr, u8 data);
void write_mmcr_word(u16 mmcr, u16 data);
void write_mmcr_long(u16 mmcr, u32 data);
u8 read_mmcr_byte(u16 mmcr);
u16 read_mmcr_word(u16 mmcr);
u32 read_mmcr_long(u16 mmcr);
void init_sc520(void);
unsigned long init_sc520_dram(void);
#endif #endif