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author | Dirk Eibach <eibach@gdsys.de> | 2013-06-26 14:04:26 (GMT) |
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committer | Stefan Roese <sr@denx.de> | 2013-07-25 17:35:42 (GMT) |
commit | aba27acf6711dce0ef1507f2f9f02a80d70a45da (patch) | |
tree | f77350104f847ab46c990c7119cb705f51089a09 /board/gdsys/common/osd.c | |
parent | aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c (diff) | |
download | u-boot-aba27acf6711dce0ef1507f2f9f02a80d70a45da.tar.xz |
powerpc/ppc4xx: Use generic accessor functions for gdsys FPGA
A set of accessor functions was added to be able to access not only
memory mapped FPGA in a generic way.
Thanks to Wolfgang Denk for getting this sorted properly.
Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'board/gdsys/common/osd.c')
-rw-r--r-- | board/gdsys/common/osd.c | 66 |
1 files changed, 36 insertions, 30 deletions
diff --git a/board/gdsys/common/osd.c b/board/gdsys/common/osd.c index 45cea5e..fd84388 100644 --- a/board/gdsys/common/osd.c +++ b/board/gdsys/common/osd.c @@ -6,8 +6,8 @@ */ #include <common.h> -#include <i2c.h> #include <asm/io.h> +#include <i2c.h> #include <gdsys_fpga.h> @@ -54,34 +54,41 @@ enum { #if defined(CONFIG_SYS_ICS8N3QV01) || defined(CONFIG_SYS_SIL1178) static void fpga_iic_write(unsigned screen, u8 slave, u8 reg, u8 data) { - struct ihs_fpga *fpga = (struct ihs_fpga *)CONFIG_SYS_FPGA_BASE(screen); - struct ihs_i2c *i2c = &fpga->i2c; + u16 val; - while (in_le16(&fpga->extended_interrupt) & (1 << 12)) - ; - out_le16(&i2c->write_mailbox_ext, reg | (data << 8)); - out_le16(&i2c->write_mailbox, 0xc400 | (slave << 1)); + do { + FPGA_GET_REG(screen, extended_interrupt, &val); + } while (val & (1 << 12)); + + FPGA_SET_REG(screen, i2c.write_mailbox_ext, reg | (data << 8)); + FPGA_SET_REG(screen, i2c.write_mailbox, 0xc400 | (slave << 1)); } static u8 fpga_iic_read(unsigned screen, u8 slave, u8 reg) { - struct ihs_fpga *fpga = (struct ihs_fpga *)CONFIG_SYS_FPGA_BASE(screen); - struct ihs_i2c *i2c = &fpga->i2c; unsigned int ctr = 0; + u16 val; + + do { + FPGA_GET_REG(screen, extended_interrupt, &val); + } while (val & (1 << 12)); - while (in_le16(&fpga->extended_interrupt) & (1 << 12)) - ; - out_le16(&fpga->extended_interrupt, 1 << 14); - out_le16(&i2c->write_mailbox_ext, reg); - out_le16(&i2c->write_mailbox, 0xc000 | (slave << 1)); - while (!(in_le16(&fpga->extended_interrupt) & (1 << 14))) { + FPGA_SET_REG(screen, extended_interrupt, 1 << 14); + FPGA_SET_REG(screen, i2c.write_mailbox_ext, reg); + FPGA_SET_REG(screen, i2c.write_mailbox, 0xc000 | (slave << 1)); + + FPGA_GET_REG(screen, extended_interrupt, &val); + while (!(val & (1 << 14))) { udelay(100000); if (ctr++ > 5) { printf("iic receive timeout\n"); break; } + FPGA_GET_REG(screen, extended_interrupt, &val); } - return in_le16(&i2c->read_mailbox_ext) >> 8; + + FPGA_GET_REG(screen, i2c.read_mailbox_ext, &val); + return val >> 8; } #endif @@ -113,7 +120,6 @@ static void mpc92469ac_calc_parameters(unsigned int fout, static void mpc92469ac_set(unsigned screen, unsigned int fout) { - struct ihs_fpga *fpga = (struct ihs_fpga *)CONFIG_SYS_FPGA_BASE(screen); unsigned int n; unsigned int m; unsigned int bitval = 0; @@ -134,7 +140,7 @@ static void mpc92469ac_set(unsigned screen, unsigned int fout) break; } - out_le16(&fpga->mpc3w_control, (bitval << 9) | m); + FPGA_SET_REG(screen, mpc3w_control, (bitval << 9) | m); } #endif @@ -249,14 +255,12 @@ static void ics8n3qv01_set(unsigned screen, unsigned int fout) static int osd_write_videomem(unsigned screen, unsigned offset, u16 *data, size_t charcount) { - struct ihs_fpga *fpga = - (struct ihs_fpga *) CONFIG_SYS_FPGA_BASE(screen); unsigned int k; for (k = 0; k < charcount; ++k) { if (offset + k >= BUFSIZE) return -1; - out_le16(&fpga->videomem + offset + k, data[k]); + FPGA_SET_REG(screen, videomem[offset + k], data[k]); } return charcount; @@ -302,14 +306,15 @@ static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) int osd_probe(unsigned screen) { - struct ihs_fpga *fpga = (struct ihs_fpga *)CONFIG_SYS_FPGA_BASE(screen); - struct ihs_osd *osd = &fpga->osd; - u16 version = in_le16(&osd->version); - u16 features = in_le16(&osd->features); + u16 version; + u16 features; unsigned width; unsigned height; u8 value; + FPGA_GET_REG(0, osd.version, &version); + FPGA_GET_REG(0, osd.features, &features); + width = ((features & 0x3f00) >> 8) + 1; height = (features & 0x001f) + 1; @@ -356,12 +361,13 @@ int osd_probe(unsigned screen) fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x37); #endif - out_le16(&fpga->videocontrol, 0x0002); - out_le16(&osd->control, 0x0049); + FPGA_SET_REG(screen, videocontrol, 0x0002); + FPGA_SET_REG(screen, osd.control, 0x0049); + + FPGA_SET_REG(screen, osd.xy_size, ((32 - 1) << 8) | (16 - 1)); + FPGA_SET_REG(screen, osd.x_pos, 0x007f); + FPGA_SET_REG(screen, osd.y_pos, 0x005f); - out_le16(&osd->xy_size, ((32 - 1) << 8) | (16 - 1)); - out_le16(&osd->x_pos, 0x007f); - out_le16(&osd->y_pos, 0x005f); return 0; } |