diff options
Diffstat (limited to 'satamv.c')
| -rw-r--r-- | satamv.c | 70 |
1 files changed, 33 insertions, 37 deletions
@@ -38,10 +38,41 @@ const struct dev_entry satas_mv[] = { #define PCI_BAR2_CONTROL 0x00c08 #define GPIO_PORT_CONTROL 0x104f0 +/* BAR2 (MEM) can map NVRAM and flash. We set it to flash in the init function. + * If BAR2 is disabled, it still can be accessed indirectly via BAR1 (I/O). + * This code only supports indirect accesses for now. + */ + +/* Indirect access to via the I/O BAR1. */ +static void satamv_indirect_chip_writeb(uint8_t val, chipaddr addr) +{ + /* 0x80000000 selects BAR2 for remapping. */ + OUTL(((uint32_t)addr | 0x80000000) & 0xfffffffc, mv_iobar); + OUTB(val, mv_iobar + 0x80 + (addr & 0x3)); +} + +/* Indirect access to via the I/O BAR1. */ +static uint8_t satamv_indirect_chip_readb(const chipaddr addr) +{ + /* 0x80000000 selects BAR2 for remapping. */ + OUTL(((uint32_t)addr | 0x80000000) & 0xfffffffc, mv_iobar); + return INB(mv_iobar + 0x80 + (addr & 0x3)); +} + +/* FIXME: Prefer direct access to BAR2 if BAR2 is active. */ static void satamv_chip_writeb(const struct flashctx *flash, uint8_t val, - chipaddr addr); + chipaddr addr) +{ + satamv_indirect_chip_writeb(val, addr); +} + +/* FIXME: Prefer direct access to BAR2 if BAR2 is active. */ static uint8_t satamv_chip_readb(const struct flashctx *flash, - const chipaddr addr); + const chipaddr addr) +{ + return satamv_indirect_chip_readb(addr); +} + static const struct par_master par_master_satamv = { .chip_readb = satamv_chip_readb, .chip_readw = fallback_chip_readw, @@ -153,41 +184,6 @@ int satamv_init(void) return 0; } -/* BAR2 (MEM) can map NVRAM and flash. We set it to flash in the init function. - * If BAR2 is disabled, it still can be accessed indirectly via BAR1 (I/O). - * This code only supports indirect accesses for now. - */ - -/* Indirect access to via the I/O BAR1. */ -static void satamv_indirect_chip_writeb(uint8_t val, chipaddr addr) -{ - /* 0x80000000 selects BAR2 for remapping. */ - OUTL(((uint32_t)addr | 0x80000000) & 0xfffffffc, mv_iobar); - OUTB(val, mv_iobar + 0x80 + (addr & 0x3)); -} - -/* Indirect access to via the I/O BAR1. */ -static uint8_t satamv_indirect_chip_readb(const chipaddr addr) -{ - /* 0x80000000 selects BAR2 for remapping. */ - OUTL(((uint32_t)addr | 0x80000000) & 0xfffffffc, mv_iobar); - return INB(mv_iobar + 0x80 + (addr & 0x3)); -} - -/* FIXME: Prefer direct access to BAR2 if BAR2 is active. */ -static void satamv_chip_writeb(const struct flashctx *flash, uint8_t val, - chipaddr addr) -{ - satamv_indirect_chip_writeb(val, addr); -} - -/* FIXME: Prefer direct access to BAR2 if BAR2 is active. */ -static uint8_t satamv_chip_readb(const struct flashctx *flash, - const chipaddr addr) -{ - return satamv_indirect_chip_readb(addr); -} - #else #error PCI port I/O access is not supported on this architecture yet. #endif |