mpc83xx: Add support for MPC8349 esd caddy2

The caddy2 is a variant of the already supported vme8349. So we just
add the differences to this board port. To better support those two
boards we switched from fixed SDRAM configuration to usage of
spd_sdram(). This is done by providing a board specific SPD EEPROM
routine with different values for both boards.

Signed-off-by: Reinhard Arlt <reinhard.arlt@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>

changed to use mkconfig -t option instead, plus misc codingstyle fixes.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

1 files changed, 138 insertions, 57 deletions

diff --git a/board/esd/vme8349/vme8349.c b/board/esd/vme8349/vme8349.c
index e3bc151..b0ebad7 100644
--- a/board/esd/vme8349/vme8349.c
+++ b/board/esd/vme8349/vme8349.c
@@ -38,63 +38,13 @@
 #endif
 #include <asm/io.h>
 #include <asm/mmu.h>
+#include <spd.h>
+#include <spd_sdram.h>
+#include <i2c.h>
+#include <netdev.h>
 
 void ddr_enable_ecc(unsigned int dram_size);
 
-int fixed_sdram(void)
-{
-	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
-	u32 msize = 0;
-	u32 ddr_size;
-	u32 ddr_size_log2;
-
-	msize = CONFIG_SYS_DDR_SIZE;
-	for (ddr_size = msize << 20, ddr_size_log2 = 0;
-	     (ddr_size > 1);
-	     ddr_size = ddr_size>>1, ddr_size_log2++) {
-		if (ddr_size & 1)
-			return -1;
-	}
-
-	im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000;
-	im->sysconf.ddrlaw[0].ar  = LAWAR_EN | ((ddr_size_log2 - 1) &
-						LAWAR_SIZE);
-
-#if (CONFIG_SYS_DDR_SIZE == 512)
-	im->ddr.csbnds[0].csbnds = 0x0000001f;
-#else
-#warning Currently any DDR size other than 512MiB is not supported
-#endif
-	im->ddr.cs_config[0]     = CONFIG_SYS_DDR_CONFIG | 0x00330000;
-
-	/* currently we use only one CS, so disable the other banks */
-	im->ddr.csbnds[1].csbnds = 0x00000000;
-	im->ddr.csbnds[2].csbnds = 0x00000000;
-	im->ddr.csbnds[3].csbnds = 0x00000000;
-	im->ddr.cs_config[1] = 0;
-	im->ddr.cs_config[2] = 0;
-	im->ddr.cs_config[3] = 0;
-
-	im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
-	im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
-	im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
-	im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
-
-	im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
-	im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
-	im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
-	im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
-
-	im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
-	sync();
-	udelay(200);
-
-	/* enable DDR controller */
-	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
-
-	return msize;
-}
-
 phys_size_t initdram(int board_type)
 {
 	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
@@ -103,10 +53,10 @@ phys_size_t initdram(int board_type)
 	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
 		return -1;
 
-	/* DDR SDRAM - Main SODIMM */
+	/* DDR SDRAM - Main memory */
 	im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR;
 
-	msize = fixed_sdram();
+	msize = spd_sdram();
 
 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 	/*
@@ -124,17 +74,148 @@ phys_size_t initdram(int board_type)
 
 int checkboard(void)
 {
-	puts("Board: esd VME8349\n");
+#ifdef VME_CADDY2
+	puts("Board: esd VME-CADDY/2\n");
+#else
+	puts("Board: esd VME-CPU/8349\n");
+#endif
 
 	return 0;
 }
 
+#ifdef VME_CADDY2
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}
+#endif
+
 #if defined(CONFIG_OF_BOARD_SETUP)
 void ft_board_setup(void *blob, bd_t *bd)
 {
 	ft_cpu_setup(blob, bd);
+
 #ifdef CONFIG_PCI
 	ft_pci_setup(blob, bd);
 #endif
 }
 #endif
+
+int misc_init_r()
+{
+	immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+
+	clrsetbits_be32(&im->lbus.lcrr, LBCR_LDIS, 0);
+
+	return 0;
+}
+
+/*
+ * Provide SPD values for spd_sdram(). Both boards (VME-CADDY/2
+ * and VME-CADDY/2) have different SDRAM configurations.
+ */
+#ifdef VME_CADDY2
+#define SMALL_RAM	0xff
+#define LARGE_RAM	0x00
+#else
+#define SMALL_RAM	0x00
+#define LARGE_RAM	0xff
+#endif
+
+#define SPD_VAL(a, b)	(((a) & SMALL_RAM) | ((b) & LARGE_RAM))
+
+static spd_eeprom_t default_spd_eeprom = {
+	SPD_VAL(0x80, 0x80),	/* 00 use 128 Bytes */
+	SPD_VAL(0x07, 0x07),	/* 01 use 128 Bytes */
+	SPD_MEMTYPE_DDR2,	/* 02 type is DDR2 */
+	SPD_VAL(0x0d, 0x0d),	/* 03 rows: 13 */
+	SPD_VAL(0x09, 0x0a),	/* 04 cols:  9 / 10 */
+	SPD_VAL(0x00, 0x00),	/* 05 */
+	SPD_VAL(0x40, 0x40),	/* 06 */
+	SPD_VAL(0x00, 0x00),	/* 07 */
+	SPD_VAL(0x05, 0x05),	/* 08 */
+	SPD_VAL(0x30, 0x30),	/* 09 */
+	SPD_VAL(0x45, 0x45),	/* 10 */
+	SPD_VAL(0x02, 0x02),	/* 11 ecc used */
+	SPD_VAL(0x82, 0x82),	/* 12 */
+	SPD_VAL(0x10, 0x10),	/* 13 */
+	SPD_VAL(0x08, 0x08),	/* 14 */
+	SPD_VAL(0x00, 0x00),	/* 15 */
+	SPD_VAL(0x0c, 0x0c),	/* 16 */
+	SPD_VAL(0x04, 0x08),	/* 17 banks: 4 / 8 */
+	SPD_VAL(0x38, 0x38),	/* 18 */
+	SPD_VAL(0x00, 0x00),	/* 19 */
+	SPD_VAL(0x02, 0x02),	/* 20 */
+	SPD_VAL(0x00, 0x00),	/* 21 */
+	SPD_VAL(0x03, 0x03),	/* 22 */
+	SPD_VAL(0x3d, 0x3d),	/* 23 */
+	SPD_VAL(0x45, 0x45),	/* 24 */
+	SPD_VAL(0x50, 0x50),	/* 25 */
+	SPD_VAL(0x45, 0x45),	/* 26 */
+	SPD_VAL(0x3c, 0x3c),	/* 27 */
+	SPD_VAL(0x28, 0x28),	/* 28 */
+	SPD_VAL(0x3c, 0x3c),	/* 29 */
+	SPD_VAL(0x2d, 0x2d),	/* 30 */
+	SPD_VAL(0x20, 0x80),	/* 31 */
+	SPD_VAL(0x20, 0x20),	/* 32 */
+	SPD_VAL(0x27, 0x27),	/* 33 */
+	SPD_VAL(0x10, 0x10),	/* 34 */
+	SPD_VAL(0x17, 0x17),	/* 35 */
+	SPD_VAL(0x3c, 0x3c),	/* 36 */
+	SPD_VAL(0x1e, 0x1e),	/* 37 */
+	SPD_VAL(0x1e, 0x1e),	/* 38 */
+	SPD_VAL(0x00, 0x00),	/* 39 */
+	SPD_VAL(0x00, 0x06),	/* 40 */
+	SPD_VAL(0x37, 0x37),	/* 41 */
+	SPD_VAL(0x4b, 0x7f),	/* 42 */
+	SPD_VAL(0x80, 0x80),	/* 43 */
+	SPD_VAL(0x18, 0x18),	/* 44 */
+	SPD_VAL(0x22, 0x22),	/* 45 */
+	SPD_VAL(0x00, 0x00),	/* 46 */
+	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+	SPD_VAL(0x10, 0x10),	/* 62 */
+	SPD_VAL(0x7e, 0x1d),	/* 63 */
+	{ 'e', 's', 'd', '-', 'g', 'm', 'b', 'h' },
+	SPD_VAL(0x00, 0x00),	/* 72 */
+#ifdef VME_CADDY2
+	{ "vme-caddy/2 ram   " }
+#else
+	{ "vme-cpu/2 ram     " }
+#endif
+};
+
+int vme8349_read_spd(uchar chip, uint addr, int alen, uchar *buffer, int len)
+{
+	int old_bus = I2C_GET_BUS();
+	unsigned int l, sum;
+	int valid = 0;
+
+	I2C_SET_BUS(0);
+
+	if (i2c_read(chip, addr, alen, buffer, len) == 0)
+		if (memcmp(&buffer[64], &default_spd_eeprom.mid[0], 8) == 0) {
+			sum = 0;
+			for (l = 0; l < 63; l++)
+				sum = (sum + buffer[l]) & 0xff;
+			if (sum == buffer[63])
+				valid = 1;
+			else
+				printf("Invalid checksum in EEPROM %02x %02x\n",
+				       sum, buffer[63]);
+		}
+
+	if (valid == 0) {
+		memcpy(buffer, (void *)&default_spd_eeprom, len);
+		sum = 0;
+		for (l = 0; l < 63; l++)
+			sum = (sum + buffer[l]) & 0xff;
+		if (sum != buffer[63])
+			printf("Invalid checksum in FLASH %02x %02x\n",
+			       sum, buffer[63]);
+		buffer[63] = sum;
+	}
+
+	I2C_SET_BUS(old_bus);
+
+	return 0;
+}